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() {\n 'use strict';\n\n if ('adoptedStyleSheets' in document) { return; }\n\n var hasShadyCss = 'ShadyCSS' in window && !window.ShadyCSS.nativeShadow;\n var deferredStyleSheets = [];\n var deferredDocumentStyleElements = [];\n var adoptedSheetsRegistry = new WeakMap();\n var sheetMetadataRegistry = new WeakMap();\n var locationRegistry = new WeakMap();\n var observerRegistry = new WeakMap();\n var appliedActionsCursorRegistry = new WeakMap();\n var state = {\n loaded: false\n };\n var frame = {\n body: null,\n CSSStyleSheet: null\n };\n var OldCSSStyleSheet = CSSStyleSheet;\n\n var importPattern = /@import\\surl(.*?);/gi;\n function instanceOfStyleSheet(instance) {\n return instance instanceof OldCSSStyleSheet || instance instanceof frame.CSSStyleSheet;\n }\n function checkAndPrepare(sheets, container) {\n var locationType = container === document ? 'Document' : 'ShadowRoot';\n if (!Array.isArray(sheets)) {\n throw new TypeError(\"Failed to set the 'adoptedStyleSheets' property on \" + locationType + \": Iterator getter is not callable.\");\n }\n if (!sheets.every(instanceOfStyleSheet)) {\n throw new TypeError(\"Failed to set the 'adoptedStyleSheets' property on \" + locationType + \": Failed to convert value to 'CSSStyleSheet'\");\n }\n var uniqueSheets = sheets.filter(function (value, index) {\n return sheets.indexOf(value) === index;\n });\n adoptedSheetsRegistry.set(container, uniqueSheets);\n return uniqueSheets;\n }\n function isDocumentLoading() {\n return document.readyState === 'loading';\n }\n function getAdoptedStyleSheet(location) {\n return adoptedSheetsRegistry.get(location.parentNode === document.documentElement ? document : location);\n }\n function rejectImports(contents) {\n var imports = contents.match(importPattern, '') || [];\n var sheetContent = contents;\n if (imports.length) {\n console.warn('@import rules are not allowed here. See https://github.com/WICG/construct-stylesheets/issues/119#issuecomment-588352418');\n imports.forEach(function (_import) {\n sheetContent = sheetContent.replace(_import, '');\n });\n }\n return sheetContent;\n }\n\n var cssStyleSheetMethods = ['addImport', 'addPageRule', 'addRule', 'deleteRule', 'insertRule', 'removeImport', 'removeRule'];\n var cssStyleSheetNewMethods = ['replace', 'replaceSync'];\n function updatePrototype(proto) {\n cssStyleSheetNewMethods.forEach(function (methodKey) {\n proto[methodKey] = function () {\n return ConstructStyleSheet.prototype[methodKey].apply(this, arguments);\n };\n });\n cssStyleSheetMethods.forEach(function (methodKey) {\n var oldMethod = proto[methodKey];\n proto[methodKey] = function () {\n var args = arguments;\n var result = oldMethod.apply(this, args);\n if (sheetMetadataRegistry.has(this)) {\n var _sheetMetadataRegistr = sheetMetadataRegistry.get(this),\n adopters = _sheetMetadataRegistr.adopters,\n actions = _sheetMetadataRegistr.actions;\n adopters.forEach(function (styleElement) {\n if (styleElement.sheet) {\n styleElement.sheet[methodKey].apply(styleElement.sheet, args);\n }\n });\n actions.push([methodKey, args]);\n }\n return result;\n };\n });\n }\n function updateAdopters(sheet) {\n var _sheetMetadataRegistr2 = sheetMetadataRegistry.get(sheet),\n adopters = _sheetMetadataRegistr2.adopters,\n basicStyleElement = _sheetMetadataRegistr2.basicStyleElement;\n adopters.forEach(function (styleElement) {\n styleElement.innerHTML = basicStyleElement.innerHTML;\n });\n }\n var ConstructStyleSheet =\n function () {\n function ConstructStyleSheet() {\n var basicStyleElement = document.createElement('style');\n if (state.loaded) {\n frame.body.appendChild(basicStyleElement);\n } else {\n document.head.appendChild(basicStyleElement);\n basicStyleElement.disabled = true;\n deferredStyleSheets.push(basicStyleElement);\n }\n var nativeStyleSheet = basicStyleElement.sheet;\n sheetMetadataRegistry.set(nativeStyleSheet, {\n adopters: new Map(),\n actions: [],\n basicStyleElement: basicStyleElement\n });\n return nativeStyleSheet;\n }\n var _proto = ConstructStyleSheet.prototype;\n _proto.replace = function replace(contents) {\n var _this = this;\n var sanitized = rejectImports(contents);\n return new Promise(function (resolve, reject) {\n if (sheetMetadataRegistry.has(_this)) {\n var _sheetMetadataRegistr3 = sheetMetadataRegistry.get(_this),\n basicStyleElement = _sheetMetadataRegistr3.basicStyleElement;\n basicStyleElement.innerHTML = sanitized;\n resolve(basicStyleElement.sheet);\n updateAdopters(_this);\n } else {\n reject(new Error(\"Can't call replace on non-constructed CSSStyleSheets.\"));\n }\n });\n };\n _proto.replaceSync = function replaceSync(contents) {\n var sanitized = rejectImports(contents);\n if (sheetMetadataRegistry.has(this)) {\n var _sheetMetadataRegistr4 = sheetMetadataRegistry.get(this),\n basicStyleElement = _sheetMetadataRegistr4.basicStyleElement;\n basicStyleElement.innerHTML = sanitized;\n updateAdopters(this);\n return basicStyleElement.sheet;\n } else {\n throw new Error(\"Failed to execute 'replaceSync' on 'CSSStyleSheet': Can't call replaceSync on non-constructed CSSStyleSheets.\");\n }\n };\n return ConstructStyleSheet;\n }();\n Object.defineProperty(ConstructStyleSheet, Symbol.hasInstance, {\n configurable: true,\n value: instanceOfStyleSheet\n });\n\n function adoptStyleSheets(location) {\n var newStyles = document.createDocumentFragment();\n var sheets = getAdoptedStyleSheet(location);\n var observer = observerRegistry.get(location);\n for (var i = 0, len = sheets.length; i < len; i++) {\n var _sheetMetadataRegistr = sheetMetadataRegistry.get(sheets[i]),\n adopters = _sheetMetadataRegistr.adopters,\n basicStyleElement = _sheetMetadataRegistr.basicStyleElement;\n var elementToAdopt = adopters.get(location);\n if (elementToAdopt) {\n observer.disconnect();\n newStyles.appendChild(elementToAdopt);\n if (!elementToAdopt.innerHTML || elementToAdopt.sheet && !elementToAdopt.sheet.cssText) {\n elementToAdopt.innerHTML = basicStyleElement.innerHTML;\n }\n observer.observe();\n } else {\n elementToAdopt = document.createElement('style');\n elementToAdopt.innerHTML = basicStyleElement.innerHTML;\n locationRegistry.set(elementToAdopt, location);\n appliedActionsCursorRegistry.set(elementToAdopt, 0);\n adopters.set(location, elementToAdopt);\n newStyles.appendChild(elementToAdopt);\n }\n if (location === document.head) {\n deferredDocumentStyleElements.push(elementToAdopt);\n }\n }\n location.insertBefore(newStyles, location.firstChild);\n for (var _i = 0, _len = sheets.length; _i < _len; _i++) {\n var _sheetMetadataRegistr2 = sheetMetadataRegistry.get(sheets[_i]),\n _adopters = _sheetMetadataRegistr2.adopters,\n actions = _sheetMetadataRegistr2.actions;\n var adoptedStyleElement = _adopters.get(location);\n var cursor = appliedActionsCursorRegistry.get(adoptedStyleElement);\n if (actions.length > 0) {\n for (var _i2 = cursor, _len2 = actions.length; _i2 < _len2; _i2++) {\n var _actions$_i = actions[_i2],\n key = _actions$_i[0],\n args = _actions$_i[1];\n adoptedStyleElement.sheet[key].apply(adoptedStyleElement.sheet, args);\n }\n appliedActionsCursorRegistry.set(adoptedStyleElement, actions.length - 1);\n }\n }\n }\n function removeExcludedStyleSheets(location, oldSheets) {\n var sheets = getAdoptedStyleSheet(location);\n for (var i = 0, len = oldSheets.length; i < len; i++) {\n if (sheets.indexOf(oldSheets[i]) > -1) {\n continue;\n }\n var _sheetMetadataRegistr3 = sheetMetadataRegistry.get(oldSheets[i]),\n adopters = _sheetMetadataRegistr3.adopters;\n var observer = observerRegistry.get(location);\n var styleElement = adopters.get(location);\n if (!styleElement) {\n styleElement = adopters.get(document.head);\n }\n observer.disconnect();\n styleElement.parentNode.removeChild(styleElement);\n observer.observe();\n }\n }\n\n function adoptAndRestoreStylesOnMutationCallback(mutations) {\n for (var i = 0, len = mutations.length; i < len; i++) {\n var _mutations$i = mutations[i],\n addedNodes = _mutations$i.addedNodes,\n removedNodes = _mutations$i.removedNodes;\n for (var _i = 0, _len = removedNodes.length; _i < _len; _i++) {\n var location = locationRegistry.get(removedNodes[_i]);\n if (location) {\n adoptStyleSheets(location);\n }\n }\n if (!hasShadyCss) {\n for (var _i2 = 0, _len2 = addedNodes.length; _i2 < _len2; _i2++) {\n var iter = document.createNodeIterator(addedNodes[_i2], NodeFilter.SHOW_ELEMENT, function (node) {\n return node.shadowRoot && node.shadowRoot.adoptedStyleSheets.length > 0 ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_REJECT;\n },\n null, false);\n var node = void 0;\n while (node = iter.nextNode()) {\n adoptStyleSheets(node.shadowRoot);\n }\n }\n }\n }\n }\n function createObserver(location) {\n var observer = new MutationObserver(adoptAndRestoreStylesOnMutationCallback);\n var observerTool = {\n observe: function observe() {\n observer.observe(location, {\n childList: true,\n subtree: true\n });\n },\n disconnect: function disconnect() {\n observer.disconnect();\n }\n };\n observerRegistry.set(location, observerTool);\n observerTool.observe();\n }\n\n function initPolyfill() {\n var iframe = document.createElement('iframe');\n iframe.hidden = true;\n document.body.appendChild(iframe);\n frame.body = iframe.contentWindow.document.body;\n frame.CSSStyleSheet = iframe.contentWindow.CSSStyleSheet;\n updatePrototype(iframe.contentWindow.CSSStyleSheet.prototype);\n createObserver(document.body);\n state.loaded = true;\n var fragment = document.createDocumentFragment();\n for (var i = 0, len = deferredStyleSheets.length; i < len; i++) {\n deferredStyleSheets[i].disabled = false;\n fragment.appendChild(deferredStyleSheets[i]);\n }\n frame.body.appendChild(fragment);\n for (var _i = 0, _len = deferredDocumentStyleElements.length; _i < _len; _i++) {\n fragment.appendChild(deferredDocumentStyleElements[_i]);\n }\n document.body.insertBefore(fragment, document.body.firstChild);\n deferredStyleSheets.length = 0;\n deferredDocumentStyleElements.length = 0;\n }\n function initAdoptedStyleSheets() {\n var adoptedStyleSheetAccessors = {\n configurable: true,\n get: function get() {\n return adoptedSheetsRegistry.get(this) || [];\n },\n set: function set(sheets) {\n var oldSheets = adoptedSheetsRegistry.get(this) || [];\n checkAndPrepare(sheets, this);\n var location = this === document ?\n isDocumentLoading() ? this.head : this.body : this;\n var isConnected = 'isConnected' in location ? location.isConnected : document.body.contains(location);\n window.requestAnimationFrame(function () {\n if (isConnected) {\n adoptStyleSheets(location);\n removeExcludedStyleSheets(location, oldSheets);\n }\n });\n }\n };\n Object.defineProperty(Document.prototype, 'adoptedStyleSheets', adoptedStyleSheetAccessors);\n if (typeof ShadowRoot !== 'undefined') {\n var attachShadow = Element.prototype.attachShadow;\n Element.prototype.attachShadow = function () {\n var location = hasShadyCss ? this : attachShadow.apply(this, arguments);\n createObserver(location);\n return location;\n };\n Object.defineProperty(ShadowRoot.prototype, 'adoptedStyleSheets', adoptedStyleSheetAccessors);\n }\n }\n\n updatePrototype(OldCSSStyleSheet.prototype);\n window.CSSStyleSheet = ConstructStyleSheet;\n initAdoptedStyleSheets();\n if (isDocumentLoading()) {\n document.addEventListener('DOMContentLoaded', initPolyfill);\n } else {\n initPolyfill();\n }\n\n}());\n","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n};\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to get private field on non-instance\");\r\n }\r\n return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to set private field on non-instance\");\r\n }\r\n privateMap.set(receiver, value);\r\n return value;\r\n}\r\n","/**\n * @license\n * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at\n * http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at\n * http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at\n * http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at\n * http://polymer.github.io/PATENTS.txt\n */\n\ninterface MaybePolyfilledCe extends CustomElementRegistry {\n readonly polyfillWrapFlushCallback?: object;\n}\n\n/**\n * True if the custom elements polyfill is in use.\n */\nexport const isCEPolyfill = typeof window !== 'undefined' &&\n window.customElements != null &&\n (window.customElements as MaybePolyfilledCe).polyfillWrapFlushCallback !==\n undefined;\n\n/**\n * Reparents nodes, starting from `start` (inclusive) to `end` (exclusive),\n * into another container (could be the same container), before `before`. If\n * `before` is null, it appends the nodes to the container.\n */\nexport const reparentNodes =\n (container: Node,\n start: Node|null,\n end: Node|null = null,\n before: Node|null = null): void => {\n while (start !== end) {\n const n = start!.nextSibling;\n container.insertBefore(start!, before);\n start = n;\n }\n };\n\n/**\n * Removes nodes, starting from `start` (inclusive) to `end` (exclusive), from\n * `container`.\n */\nexport const removeNodes =\n (container: Node, start: Node|null, end: Node|null = null): void => {\n while (start !== end) {\n const n = start!.nextSibling;\n container.removeChild(start!);\n start = n;\n }\n };\n","/**\n * @license\n * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at\n * http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at\n * http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at\n * http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at\n * http://polymer.github.io/PATENTS.txt\n */\n\nimport {TemplateResult} from './template-result.js';\n\n/**\n * An expression marker with embedded unique key to avoid collision with\n * possible text in templates.\n */\nexport const marker = `{{lit-${String(Math.random()).slice(2)}}}`;\n\n/**\n * An expression marker used text-positions, multi-binding attributes, and\n * attributes with markup-like text values.\n */\nexport const nodeMarker = ``;\n\nexport const markerRegex = new RegExp(`${marker}|${nodeMarker}`);\n\n/**\n * Suffix appended to all bound attribute names.\n */\nexport const boundAttributeSuffix = '$lit$';\n\n/**\n * An updatable Template that tracks the location of dynamic parts.\n */\nexport class Template {\n readonly parts: TemplatePart[] = [];\n readonly element: HTMLTemplateElement;\n\n constructor(result: TemplateResult, element: HTMLTemplateElement) {\n this.element = element;\n\n const nodesToRemove: Node[] = [];\n const stack: Node[] = [];\n // Edge needs all 4 parameters present; IE11 needs 3rd parameter to be null\n const walker = document.createTreeWalker(\n element.content,\n 133 /* NodeFilter.SHOW_{ELEMENT|COMMENT|TEXT} */,\n null,\n false);\n // Keeps track of the last index associated with a part. We try to delete\n // unnecessary nodes, but we never want to associate two different parts\n // to the same index. They must have a constant node between.\n let lastPartIndex = 0;\n let index = -1;\n let partIndex = 0;\n const {strings, values: {length}} = result;\n while (partIndex < length) {\n const node = walker.nextNode() as Element | Comment | Text | null;\n if (node === null) {\n // We've exhausted the content inside a nested template element.\n // Because we still have parts (the outer for-loop), we know:\n // - There is a template in the stack\n // - The walker will find a nextNode outside the template\n walker.currentNode = stack.pop()!;\n continue;\n }\n index++;\n\n if (node.nodeType === 1 /* Node.ELEMENT_NODE */) {\n if ((node as Element).hasAttributes()) {\n const attributes = (node as Element).attributes;\n const {length} = attributes;\n // Per\n // https://developer.mozilla.org/en-US/docs/Web/API/NamedNodeMap,\n // attributes are not guaranteed to be returned in document order.\n // In particular, Edge/IE can return them out of order, so we cannot\n // assume a correspondence between part index and attribute index.\n let count = 0;\n for (let i = 0; i < length; i++) {\n if (endsWith(attributes[i].name, boundAttributeSuffix)) {\n count++;\n }\n }\n while (count-- > 0) {\n // Get the template literal section leading up to the first\n // expression in this attribute\n const stringForPart = strings[partIndex];\n // Find the attribute name\n const name = lastAttributeNameRegex.exec(stringForPart)![2];\n // Find the corresponding attribute\n // All bound attributes have had a suffix added in\n // TemplateResult#getHTML to opt out of special attribute\n // handling. To look up the attribute value we also need to add\n // the suffix.\n const attributeLookupName =\n name.toLowerCase() + boundAttributeSuffix;\n const attributeValue =\n (node as Element).getAttribute(attributeLookupName)!;\n (node as Element).removeAttribute(attributeLookupName);\n const statics = attributeValue.split(markerRegex);\n this.parts.push({type: 'attribute', index, name, strings: statics});\n partIndex += statics.length - 1;\n }\n }\n if ((node as Element).tagName === 'TEMPLATE') {\n stack.push(node);\n walker.currentNode = (node as HTMLTemplateElement).content;\n }\n } else if (node.nodeType === 3 /* Node.TEXT_NODE */) {\n const data = (node as Text).data;\n if (data.indexOf(marker) >= 0) {\n const parent = node.parentNode!;\n const strings = data.split(markerRegex);\n const lastIndex = strings.length - 1;\n // Generate a new text node for each literal section\n // These nodes are also used as the markers for node parts\n for (let i = 0; i < lastIndex; i++) {\n let insert: Node;\n let s = strings[i];\n if (s === '') {\n insert = createMarker();\n } else {\n const match = lastAttributeNameRegex.exec(s);\n if (match !== null && endsWith(match[2], boundAttributeSuffix)) {\n s = s.slice(0, match.index) + match[1] +\n match[2].slice(0, -boundAttributeSuffix.length) + match[3];\n }\n insert = document.createTextNode(s);\n }\n parent.insertBefore(insert, node);\n this.parts.push({type: 'node', index: ++index});\n }\n // If there's no text, we must insert a comment to mark our place.\n // Else, we can trust it will stick around after cloning.\n if (strings[lastIndex] === '') {\n parent.insertBefore(createMarker(), node);\n nodesToRemove.push(node);\n } else {\n (node as Text).data = strings[lastIndex];\n }\n // We have a part for each match found\n partIndex += lastIndex;\n }\n } else if (node.nodeType === 8 /* Node.COMMENT_NODE */) {\n if ((node as Comment).data === marker) {\n const parent = node.parentNode!;\n // Add a new marker node to be the startNode of the Part if any of\n // the following are true:\n // * We don't have a previousSibling\n // * The previousSibling is already the start of a previous part\n if (node.previousSibling === null || index === lastPartIndex) {\n index++;\n parent.insertBefore(createMarker(), node);\n }\n lastPartIndex = index;\n this.parts.push({type: 'node', index});\n // If we don't have a nextSibling, keep this node so we have an end.\n // Else, we can remove it to save future costs.\n if (node.nextSibling === null) {\n (node as Comment).data = '';\n } else {\n nodesToRemove.push(node);\n index--;\n }\n partIndex++;\n } else {\n let i = -1;\n while ((i = (node as Comment).data.indexOf(marker, i + 1)) !== -1) {\n // Comment node has a binding marker inside, make an inactive part\n // The binding won't work, but subsequent bindings will\n // TODO (justinfagnani): consider whether it's even worth it to\n // make bindings in comments work\n this.parts.push({type: 'node', index: -1});\n partIndex++;\n }\n }\n }\n }\n\n // Remove text binding nodes after the walk to not disturb the TreeWalker\n for (const n of nodesToRemove) {\n n.parentNode!.removeChild(n);\n }\n }\n}\n\nconst endsWith = (str: string, suffix: string): boolean => {\n const index = str.length - suffix.length;\n return index >= 0 && str.slice(index) === suffix;\n};\n\n/**\n * A placeholder for a dynamic expression in an HTML template.\n *\n * There are two built-in part types: AttributePart and NodePart. NodeParts\n * always represent a single dynamic expression, while AttributeParts may\n * represent as many expressions are contained in the attribute.\n *\n * A Template's parts are mutable, so parts can be replaced or modified\n * (possibly to implement different template semantics). The contract is that\n * parts can only be replaced, not removed, added or reordered, and parts must\n * always consume the correct number of values in their `update()` method.\n *\n * TODO(justinfagnani): That requirement is a little fragile. A\n * TemplateInstance could instead be more careful about which values it gives\n * to Part.update().\n */\nexport type TemplatePart = {\n readonly type: 'node'; index: number;\n}|{\n readonly type: 'attribute';\n index: number;\n readonly name: string;\n readonly strings: ReadonlyArray;\n};\n\nexport const isTemplatePartActive = (part: TemplatePart) => part.index !== -1;\n\n// Allows `document.createComment('')` to be renamed for a\n// small manual size-savings.\nexport const createMarker = () => document.createComment('');\n\n/**\n * This regex extracts the attribute name preceding an attribute-position\n * expression. It does this by matching the syntax allowed for attributes\n * against the string literal directly preceding the expression, assuming that\n * the expression is in an attribute-value position.\n *\n * See attributes in the HTML spec:\n * https://www.w3.org/TR/html5/syntax.html#elements-attributes\n *\n * \" \\x09\\x0a\\x0c\\x0d\" are HTML space characters:\n * https://www.w3.org/TR/html5/infrastructure.html#space-characters\n *\n * \"\\0-\\x1F\\x7F-\\x9F\" are Unicode control characters, which includes every\n * space character except \" \".\n *\n * So an attribute is:\n * * The name: any character except a control character, space character, ('),\n * (\"), \">\", \"=\", or \"/\"\n * * Followed by zero or more space characters\n * * Followed by \"=\"\n * * Followed by zero or more space characters\n * * Followed by:\n * * Any character except space, ('), (\"), \"<\", \">\", \"=\", (`), or\n * * (\") then any non-(\"), or\n * * (') then any non-(')\n */\nexport const lastAttributeNameRegex =\n // eslint-disable-next-line no-control-regex\n /([ \\x09\\x0a\\x0c\\x0d])([^\\0-\\x1F\\x7F-\\x9F \"'>=/]+)([ \\x09\\x0a\\x0c\\x0d]*=[ \\x09\\x0a\\x0c\\x0d]*(?:[^ \\x09\\x0a\\x0c\\x0d\"'`<>=]*|\"[^\"]*|'[^']*))$/;\n","/**\n * @license\n * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at\n * http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at\n * http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at\n * http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at\n * http://polymer.github.io/PATENTS.txt\n */\n\nimport {isTemplatePartActive, Template, TemplatePart} from './template.js';\n\nconst walkerNodeFilter = 133 /* NodeFilter.SHOW_{ELEMENT|COMMENT|TEXT} */;\n\n/**\n * Removes the list of nodes from a Template safely. In addition to removing\n * nodes from the Template, the Template part indices are updated to match\n * the mutated Template DOM.\n *\n * As the template is walked the removal state is tracked and\n * part indices are adjusted as needed.\n *\n * div\n * div#1 (remove) <-- start removing (removing node is div#1)\n * div\n * div#2 (remove) <-- continue removing (removing node is still div#1)\n * div\n * div <-- stop removing since previous sibling is the removing node (div#1,\n * removed 4 nodes)\n */\nexport function removeNodesFromTemplate(\n template: Template, nodesToRemove: Set) {\n const {element: {content}, parts} = template;\n const walker =\n document.createTreeWalker(content, walkerNodeFilter, null, false);\n let partIndex = nextActiveIndexInTemplateParts(parts);\n let part = parts[partIndex];\n let nodeIndex = -1;\n let removeCount = 0;\n const nodesToRemoveInTemplate = [];\n let currentRemovingNode: Node|null = null;\n while (walker.nextNode()) {\n nodeIndex++;\n const node = walker.currentNode as Element;\n // End removal if stepped past the removing node\n if (node.previousSibling === currentRemovingNode) {\n currentRemovingNode = null;\n }\n // A node to remove was found in the template\n if (nodesToRemove.has(node)) {\n nodesToRemoveInTemplate.push(node);\n // Track node we're removing\n if (currentRemovingNode === null) {\n currentRemovingNode = node;\n }\n }\n // When removing, increment count by which to adjust subsequent part indices\n if (currentRemovingNode !== null) {\n removeCount++;\n }\n while (part !== undefined && part.index === nodeIndex) {\n // If part is in a removed node deactivate it by setting index to -1 or\n // adjust the index as needed.\n part.index = currentRemovingNode !== null ? -1 : part.index - removeCount;\n // go to the next active part.\n partIndex = nextActiveIndexInTemplateParts(parts, partIndex);\n part = parts[partIndex];\n }\n }\n nodesToRemoveInTemplate.forEach((n) => n.parentNode!.removeChild(n));\n}\n\nconst countNodes = (node: Node) => {\n let count = (node.nodeType === 11 /* Node.DOCUMENT_FRAGMENT_NODE */) ? 0 : 1;\n const walker = document.createTreeWalker(node, walkerNodeFilter, null, false);\n while (walker.nextNode()) {\n count++;\n }\n return count;\n};\n\nconst nextActiveIndexInTemplateParts =\n (parts: TemplatePart[], startIndex = -1) => {\n for (let i = startIndex + 1; i < parts.length; i++) {\n const part = parts[i];\n if (isTemplatePartActive(part)) {\n return i;\n }\n }\n return -1;\n };\n\n/**\n * Inserts the given node into the Template, optionally before the given\n * refNode. In addition to inserting the node into the Template, the Template\n * part indices are updated to match the mutated Template DOM.\n */\nexport function insertNodeIntoTemplate(\n template: Template, node: Node, refNode: Node|null = null) {\n const {element: {content}, parts} = template;\n // If there's no refNode, then put node at end of template.\n // No part indices need to be shifted in this case.\n if (refNode === null || refNode === undefined) {\n content.appendChild(node);\n return;\n }\n const walker =\n document.createTreeWalker(content, walkerNodeFilter, null, false);\n let partIndex = nextActiveIndexInTemplateParts(parts);\n let insertCount = 0;\n let walkerIndex = -1;\n while (walker.nextNode()) {\n walkerIndex++;\n const walkerNode = walker.currentNode as Element;\n if (walkerNode === refNode) {\n insertCount = countNodes(node);\n refNode.parentNode!.insertBefore(node, refNode);\n }\n while (partIndex !== -1 && parts[partIndex].index === walkerIndex) {\n // If we've inserted the node, simply adjust all subsequent parts\n if (insertCount > 0) {\n while (partIndex !== -1) {\n parts[partIndex].index += insertCount;\n partIndex = nextActiveIndexInTemplateParts(parts, partIndex);\n }\n return;\n }\n partIndex = nextActiveIndexInTemplateParts(parts, partIndex);\n }\n }\n}\n","/**\n * @license\n * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at\n * http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at\n * http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at\n * http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at\n * http://polymer.github.io/PATENTS.txt\n */\n\nimport {Part} from './part.js';\n\nconst directives = new WeakMap();\n\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport type DirectiveFactory = (...args: any[]) => object;\n\nexport type DirectiveFn = (part: Part) => void;\n\n/**\n * Brands a function as a directive factory function so that lit-html will call\n * the function during template rendering, rather than passing as a value.\n *\n * A _directive_ is a function that takes a Part as an argument. It has the\n * signature: `(part: Part) => void`.\n *\n * A directive _factory_ is a function that takes arguments for data and\n * configuration and returns a directive. Users of directive usually refer to\n * the directive factory as the directive. For example, \"The repeat directive\".\n *\n * Usually a template author will invoke a directive factory in their template\n * with relevant arguments, which will then return a directive function.\n *\n * Here's an example of using the `repeat()` directive factory that takes an\n * array and a function to render an item:\n *\n * ```js\n * html`
    <${repeat(items, (item) => html`
  • ${item}
    • `)}
`\n * ```\n *\n * When `repeat` is invoked, it returns a directive function that closes over\n * `items` and the template function. When the outer template is rendered, the\n * return directive function is called with the Part for the expression.\n * `repeat` then performs it's custom logic to render multiple items.\n *\n * @param f The directive factory function. Must be a function that returns a\n * function of the signature `(part: Part) => void`. The returned function will\n * be called with the part object.\n *\n * @example\n *\n * import {directive, html} from 'lit-html';\n *\n * const immutable = directive((v) => (part) => {\n * if (part.value !== v) {\n * part.setValue(v)\n * }\n * });\n */\nexport const directive = (f: F): F =>\n ((...args: unknown[]) => {\n const d = f(...args);\n directives.set(d, true);\n return d;\n }) as F;\n\nexport const isDirective = (o: unknown): o is DirectiveFn => {\n return typeof o === 'function' && directives.has(o);\n};\n","/**\n * @license\n * Copyright (c) 2018 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at\n * http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at\n * http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at\n * http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at\n * http://polymer.github.io/PATENTS.txt\n */\n\n/**\n * The Part interface represents a dynamic part of a template instance rendered\n * by lit-html.\n */\nexport interface Part {\n readonly value: unknown;\n\n /**\n * Sets the current part value, but does not write it to the DOM.\n * @param value The value that will be committed.\n */\n setValue(value: unknown): void;\n\n /**\n * Commits the current part value, causing it to actually be written to the\n * DOM.\n *\n * Directives are run at the start of `commit`, so that if they call\n * `part.setValue(...)` synchronously that value will be used in the current\n * commit, and there's no need to call `part.commit()` within the directive.\n * If directives set a part value asynchronously, then they must call\n * `part.commit()` manually.\n */\n commit(): void;\n}\n\n/**\n * A sentinel value that signals that a value was handled by a directive and\n * should not be written to the DOM.\n */\nexport const noChange = {};\n\n/**\n * A sentinel value that signals a NodePart to fully clear its content.\n */\nexport const nothing = {};\n","/**\n * @license\n * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at\n * http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at\n * http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at\n * http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at\n * http://polymer.github.io/PATENTS.txt\n */\n\nimport {isCEPolyfill} from './dom.js';\nimport {Part} from './part.js';\nimport {RenderOptions} from './render-options.js';\nimport {TemplateProcessor} from './template-processor.js';\nimport {isTemplatePartActive, Template, TemplatePart} from './template.js';\n\n/**\n * An instance of a `Template` that can be attached to the DOM and updated\n * with new values.\n */\nexport class TemplateInstance {\n private readonly __parts: Array = [];\n readonly processor: TemplateProcessor;\n readonly options: RenderOptions;\n readonly template: Template;\n\n constructor(\n template: Template, processor: TemplateProcessor,\n options: RenderOptions) {\n this.template = template;\n this.processor = processor;\n this.options = options;\n }\n\n update(values: readonly unknown[]) {\n let i = 0;\n for (const part of this.__parts) {\n if (part !== undefined) {\n part.setValue(values[i]);\n }\n i++;\n }\n for (const part of this.__parts) {\n if (part !== undefined) {\n part.commit();\n }\n }\n }\n\n _clone(): DocumentFragment {\n // There are a number of steps in the lifecycle of a template instance's\n // DOM fragment:\n // 1. Clone - create the instance fragment\n // 2. Adopt - adopt into the main document\n // 3. Process - find part markers and create parts\n // 4. Upgrade - upgrade custom elements\n // 5. Update - set node, attribute, property, etc., values\n // 6. Connect - connect to the document. Optional and outside of this\n // method.\n //\n // We have a few constraints on the ordering of these steps:\n // * We need to upgrade before updating, so that property values will pass\n // through any property setters.\n // * We would like to process before upgrading so that we're sure that the\n // cloned fragment is inert and not disturbed by self-modifying DOM.\n // * We want custom elements to upgrade even in disconnected fragments.\n //\n // Given these constraints, with full custom elements support we would\n // prefer the order: Clone, Process, Adopt, Upgrade, Update, Connect\n //\n // But Safari does not implement CustomElementRegistry#upgrade, so we\n // can not implement that order and still have upgrade-before-update and\n // upgrade disconnected fragments. So we instead sacrifice the\n // process-before-upgrade constraint, since in Custom Elements v1 elements\n // must not modify their light DOM in the constructor. We still have issues\n // when co-existing with CEv0 elements like Polymer 1, and with polyfills\n // that don't strictly adhere to the no-modification rule because shadow\n // DOM, which may be created in the constructor, is emulated by being placed\n // in the light DOM.\n //\n // The resulting order is on native is: Clone, Adopt, Upgrade, Process,\n // Update, Connect. document.importNode() performs Clone, Adopt, and Upgrade\n // in one step.\n //\n // The Custom Elements v1 polyfill supports upgrade(), so the order when\n // polyfilled is the more ideal: Clone, Process, Adopt, Upgrade, Update,\n // Connect.\n\n const fragment = isCEPolyfill ?\n this.template.element.content.cloneNode(true) as DocumentFragment :\n document.importNode(this.template.element.content, true);\n\n const stack: Node[] = [];\n const parts = this.template.parts;\n // Edge needs all 4 parameters present; IE11 needs 3rd parameter to be null\n const walker = document.createTreeWalker(\n fragment,\n 133 /* NodeFilter.SHOW_{ELEMENT|COMMENT|TEXT} */,\n null,\n false);\n let partIndex = 0;\n let nodeIndex = 0;\n let part: TemplatePart;\n let node = walker.nextNode();\n // Loop through all the nodes and parts of a template\n while (partIndex < parts.length) {\n part = parts[partIndex];\n if (!isTemplatePartActive(part)) {\n this.__parts.push(undefined);\n partIndex++;\n continue;\n }\n\n // Progress the tree walker until we find our next part's node.\n // Note that multiple parts may share the same node (attribute parts\n // on a single element), so this loop may not run at all.\n while (nodeIndex < part.index) {\n nodeIndex++;\n if (node!.nodeName === 'TEMPLATE') {\n stack.push(node!);\n walker.currentNode = (node as HTMLTemplateElement).content;\n }\n if ((node = walker.nextNode()) === null) {\n // We've exhausted the content inside a nested template element.\n // Because we still have parts (the outer for-loop), we know:\n // - There is a template in the stack\n // - The walker will find a nextNode outside the template\n walker.currentNode = stack.pop()!;\n node = walker.nextNode();\n }\n }\n\n // We've arrived at our part's node.\n if (part.type === 'node') {\n const part = this.processor.handleTextExpression(this.options);\n part.insertAfterNode(node!.previousSibling!);\n this.__parts.push(part);\n } else {\n this.__parts.push(...this.processor.handleAttributeExpressions(\n node as Element, part.name, part.strings, this.options));\n }\n partIndex++;\n }\n\n if (isCEPolyfill) {\n document.adoptNode(fragment);\n customElements.upgrade(fragment);\n }\n return fragment;\n }\n}\n","/**\n * @license\n * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at\n * http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at\n * http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at\n * http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at\n * http://polymer.github.io/PATENTS.txt\n */\n\n/**\n * @module lit-html\n */\n\nimport {reparentNodes} from './dom.js';\nimport {TemplateProcessor} from './template-processor.js';\nimport {boundAttributeSuffix, lastAttributeNameRegex, marker, nodeMarker} from './template.js';\n\ndeclare const trustedTypes: typeof window.trustedTypes;\n/**\n * Our TrustedTypePolicy for HTML which is declared using the html template\n * tag function.\n *\n * That HTML is a developer-authored constant, and is parsed with innerHTML\n * before any untrusted expressions have been mixed in. Therefor it is\n * considered safe by construction.\n */\nconst policy = window.trustedTypes &&\n trustedTypes!.createPolicy('lit-html', {createHTML: (s) => s});\n\nconst commentMarker = ` ${marker} `;\n\n/**\n * The return type of `html`, which holds a Template and the values from\n * interpolated expressions.\n */\nexport class TemplateResult {\n readonly strings: TemplateStringsArray;\n readonly values: readonly unknown[];\n readonly type: string;\n readonly processor: TemplateProcessor;\n\n constructor(\n strings: TemplateStringsArray, values: readonly unknown[], type: string,\n processor: TemplateProcessor) {\n this.strings = strings;\n this.values = values;\n this.type = type;\n this.processor = processor;\n }\n\n /**\n * Returns a string of HTML used to create a `