From e270c16516d65c57d81163308a5a0514d5bdcd36 Mon Sep 17 00:00:00 2001 From: Cory McWilliams Date: Tue, 4 Jun 2024 20:10:27 -0400 Subject: [PATCH] lit 3.1.4. --- apps/blog/lit-all.min.js | 6 +++--- apps/blog/lit-all.min.js.map | 2 +- apps/issues/lit-all.min.js | 6 +++--- apps/issues/lit-all.min.js.map | 2 +- apps/journal/lit-all.min.js | 6 +++--- apps/journal/lit-all.min.js.map | 2 +- apps/sneaker/lit-all.min.js | 6 +++--- apps/sneaker/lit-all.min.js.map | 2 +- apps/ssb/lit-all.min.js | 6 +++--- apps/ssb/lit-all.min.js.map | 2 +- apps/wiki/lit-all.min.js | 6 +++--- apps/wiki/lit-all.min.js.map | 2 +- deps/lit/lit-all.min.js | 6 +++--- deps/lit/lit-all.min.js.map | 2 +- tools/update-lit.sh | 2 +- 15 files changed, 29 insertions(+), 29 deletions(-) diff --git a/apps/blog/lit-all.min.js b/apps/blog/lit-all.min.js index 5911d5f6..cdf19d03 100644 --- a/apps/blog/lit-all.min.js +++ b/apps/blog/lit-all.min.js @@ -14,12 +14,12 @@ const t=globalThis,s=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow * Copyright 2017 Google LLC * SPDX-License-Identifier: BSD-3-Clause */ -const T=globalThis,x=T.trustedTypes,E=x?x.createPolicy("lit-html",{createHTML:t=>t}):void 0,C="$lit$",P=`lit$${Math.random().toFixed(9).slice(2)}$`,A="?"+P,k=`<${A}>`,M=document,U=()=>M.createComment(""),V=t=>null===t||"object"!=typeof t&&"function"!=typeof t,O=Array.isArray,R=t=>O(t)||"function"==typeof t?.[Symbol.iterator],N="[ \t\n\f\r]",z=/<(?:(!--|\/[^a-zA-Z])|(\/?[a-zA-Z][^>\s]*)|(\/?$))/g,L=/-->/g,j=/>/g,H=RegExp(`>|${N}(?:([^\\s"'>=/]+)(${N}*=${N}*(?:[^ \t\n\f\r"'\`<>=]|("|')|))|$)`,"g"),I=/'/g,D=/"/g,B=/^(?:script|style|textarea|title)$/i,W=t=>(s,...i)=>({_$litType$:t,strings:s,values:i}),Z=W(1),q=W(2),F=Symbol.for("lit-noChange"),G=Symbol.for("lit-nothing"),J=new WeakMap,K=M.createTreeWalker(M,129);function Y(t,s){if(!Array.isArray(t)||!t.hasOwnProperty("raw"))throw Error("invalid template strings array");return void 0!==E?E.createHTML(s):s}const Q=(t,s)=>{const i=t.length-1,e=[];let n,r=2===s?"":"",o=z;for(let s=0;s"===c[0]?(o=n??z,l=-1):void 0===c[1]?l=-2:(l=o.lastIndex-c[2].length,h=c[1],o=void 0===c[3]?H:'"'===c[3]?D:I):o===D||o===I?o=H:o===L||o===j?o=z:(o=H,n=void 0);const u=o===H&&t[s+1].startsWith("/>")?" 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this.renderOptions.renderBefore??=t.firstChild,t}update(t){const s=this.render();this.hasUpdated||(this.renderOptions.isConnected=this.isConnected),super.update(t),this.ht=at(s,this.renderRoot,this.renderOptions)}connectedCallback(){super.connectedCallback(),this.ht?.setConnected(!0)}disconnectedCallback(){super.disconnectedCallback(),this.ht?.setConnected(!1)}render(){return F}}ut._$litElement$=!0,ut[("finalized","finalized")]=!0,globalThis.litElementHydrateSupport?.({LitElement:ut});const dt=globalThis.litElementPolyfillSupport;dt?.({LitElement:ut});const ft={_$AK:(t,s,i)=>{t._$AK(s,i)},_$AL:t=>t._$AL};(globalThis.litElementVersions??=[]).push("4.0.6"); /** * @license * Copyright 2022 Google LLC @@ -84,7 +84,7 @@ function*is(t,s){if(void 0!==t){let i=0;for(const e of t)yield s(e,i++)}} * @license * Copyright 2020 Google LLC * SPDX-License-Identifier: BSD-3-Clause - */const ns=()=>new rs;class rs{}const os=new WeakMap,hs=Ut(class extends Ht{render(t){return G}update(t,[s]){const 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-{"version":3,"file":"lit-all.min.js","sources":["lit-all.min.js/reactive-element/src/css-tag.ts","lit-all.min.js/reactive-element/src/reactive-element.ts","lit-all.min.js/lit-html/src/lit-html.ts","lit-all.min.js/lit-element/src/lit-element.ts","lit-all.min.js/lit-html/src/is-server.ts","lit-all.min.js/lit-html/src/directive-helpers.ts","lit-all.min.js/lit-html/src/directive.ts","lit-all.min.js/lit-html/src/async-directive.ts","lit-all.min.js/lit-html/src/directives/private-async-helpers.ts","lit-all.min.js/lit-html/src/directives/async-replace.ts","lit-all.min.js/lit-html/src/directives/async-append.ts","lit-all.min.js/lit-html/src/directives/cache.ts","lit-all.min.js/lit-html/src/directives/choose.ts","lit-all.min.js/lit-html/src/directives/class-map.ts","lit-all.min.js/lit-html/src/directives/guard.ts","lit-all.min.js/lit-html/src/directives/if-defined.ts","lit-all.min.js/lit-html/src/directives/join.ts","lit-all.min.js/lit-html/src/directives/keyed.ts","lit-all.min.js/lit-html/src/directives/live.ts","lit-all.min.js/lit-html/src/directives/map.ts","lit-all.min.js/lit-html/src/directives/range.ts","lit-all.min.js/lit-html/src/directives/ref.ts","lit-all.min.js/lit-html/src/directives/repeat.ts","lit-all.min.js/lit-html/src/directives/style-map.ts","lit-all.min.js/lit-html/src/directives/template-content.ts","lit-all.min.js/lit-html/src/directives/unsafe-html.ts","lit-all.min.js/lit-html/src/directives/unsafe-svg.ts","lit-all.min.js/lit-html/src/directives/until.ts","lit-all.min.js/lit-html/src/directives/when.ts","lit-all.min.js/lit-html/src/static.ts","lit-all.min.js/lit/src/index.all.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2019 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */\n\nconst NODE_MODE = false;\n\n// Allows minifiers to rename references to globalThis\nconst global = globalThis;\n\n/**\n * Whether the current browser supports `adoptedStyleSheets`.\n */\nexport const supportsAdoptingStyleSheets: boolean =\n global.ShadowRoot &&\n (global.ShadyCSS === undefined || global.ShadyCSS.nativeShadow) &&\n 'adoptedStyleSheets' in Document.prototype &&\n 'replace' in CSSStyleSheet.prototype;\n\n/**\n * A CSSResult or native CSSStyleSheet.\n *\n * In browsers that support constructible CSS style sheets, CSSStyleSheet\n * object can be used for styling along side CSSResult from the `css`\n * template tag.\n */\nexport type CSSResultOrNative = CSSResult | CSSStyleSheet;\n\nexport type CSSResultArray = Array;\n\n/**\n * A single CSSResult, CSSStyleSheet, or an array or nested arrays of those.\n */\nexport type CSSResultGroup = CSSResultOrNative | CSSResultArray;\n\nconst constructionToken = Symbol();\n\nconst cssTagCache = new WeakMap();\n\n/**\n * A container for a string of CSS text, that may be used to create a CSSStyleSheet.\n *\n * CSSResult is the return value of `css`-tagged template literals and\n * `unsafeCSS()`. In order to ensure that CSSResults are only created via the\n * `css` tag and `unsafeCSS()`, CSSResult cannot be constructed directly.\n */\nexport class CSSResult {\n // This property needs to remain unminified.\n ['_$cssResult$'] = true;\n readonly cssText: string;\n private _styleSheet?: CSSStyleSheet;\n private _strings: TemplateStringsArray | undefined;\n\n private constructor(\n cssText: string,\n strings: TemplateStringsArray | undefined,\n safeToken: symbol\n ) {\n if (safeToken !== constructionToken) {\n throw new Error(\n 'CSSResult is not constructable. Use `unsafeCSS` or `css` instead.'\n );\n }\n this.cssText = cssText;\n this._strings = strings;\n }\n\n // This is a getter so that it's lazy. In practice, this means stylesheets\n // are not created until the first element instance is made.\n get styleSheet(): CSSStyleSheet | undefined {\n // If `supportsAdoptingStyleSheets` is true then we assume CSSStyleSheet is\n // constructable.\n let styleSheet = this._styleSheet;\n const strings = this._strings;\n if (supportsAdoptingStyleSheets && styleSheet === undefined) {\n const cacheable = strings !== undefined && strings.length === 1;\n if (cacheable) {\n styleSheet = cssTagCache.get(strings);\n }\n if (styleSheet === undefined) {\n (this._styleSheet = styleSheet = new CSSStyleSheet()).replaceSync(\n this.cssText\n );\n if (cacheable) {\n cssTagCache.set(strings, styleSheet);\n }\n }\n }\n return styleSheet;\n }\n\n toString(): string {\n return this.cssText;\n }\n}\n\ntype ConstructableCSSResult = CSSResult & {\n new (\n cssText: string,\n strings: TemplateStringsArray | undefined,\n safeToken: symbol\n ): CSSResult;\n};\n\nconst textFromCSSResult = (value: CSSResultGroup | number) => {\n // This property needs to remain unminified.\n if ((value as CSSResult)['_$cssResult$'] === true) {\n return (value as CSSResult).cssText;\n } else if (typeof value === 'number') {\n return value;\n } else {\n throw new Error(\n `Value passed to 'css' function must be a 'css' function result: ` +\n `${value}. Use 'unsafeCSS' to pass non-literal values, but take care ` +\n `to ensure page security.`\n );\n }\n};\n\n/**\n * Wrap a value for interpolation in a {@linkcode css} tagged template literal.\n *\n * This is unsafe because untrusted CSS text can be used to phone home\n * or exfiltrate data to an attacker controlled site. Take care to only use\n * this with trusted input.\n */\nexport const unsafeCSS = (value: unknown) =>\n new (CSSResult as ConstructableCSSResult)(\n typeof value === 'string' ? value : String(value),\n undefined,\n constructionToken\n );\n\n/**\n * A template literal tag which can be used with LitElement's\n * {@linkcode LitElement.styles} property to set element styles.\n *\n * For security reasons, only literal string values and number may be used in\n * embedded expressions. To incorporate non-literal values {@linkcode unsafeCSS}\n * may be used inside an expression.\n */\nexport const css = (\n strings: TemplateStringsArray,\n ...values: (CSSResultGroup | number)[]\n): CSSResult => {\n const cssText =\n strings.length === 1\n ? strings[0]\n : values.reduce(\n (acc, v, idx) => acc + textFromCSSResult(v) + strings[idx + 1],\n strings[0]\n );\n return new (CSSResult as ConstructableCSSResult)(\n cssText,\n strings,\n constructionToken\n );\n};\n\n/**\n * Applies the given styles to a `shadowRoot`. When Shadow DOM is\n * available but `adoptedStyleSheets` is not, styles are appended to the\n * `shadowRoot` to [mimic spec behavior](https://wicg.github.io/construct-stylesheets/#using-constructed-stylesheets).\n * Note, when shimming is used, any styles that are subsequently placed into\n * the shadowRoot should be placed *before* any shimmed adopted styles. This\n * will match spec behavior that gives adopted sheets precedence over styles in\n * shadowRoot.\n */\nexport const adoptStyles = (\n renderRoot: ShadowRoot,\n styles: Array\n) => {\n if (supportsAdoptingStyleSheets) {\n (renderRoot as ShadowRoot).adoptedStyleSheets = styles.map((s) =>\n s instanceof CSSStyleSheet ? s : s.styleSheet!\n );\n } else {\n for (const s of styles) {\n const style = document.createElement('style');\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const nonce = (global as any)['litNonce'];\n if (nonce !== undefined) {\n style.setAttribute('nonce', nonce);\n }\n style.textContent = (s as CSSResult).cssText;\n renderRoot.appendChild(style);\n }\n }\n};\n\nconst cssResultFromStyleSheet = (sheet: CSSStyleSheet) => {\n let cssText = '';\n for (const rule of sheet.cssRules) {\n cssText += rule.cssText;\n }\n return unsafeCSS(cssText);\n};\n\nexport const getCompatibleStyle =\n supportsAdoptingStyleSheets ||\n (NODE_MODE && global.CSSStyleSheet === undefined)\n ? (s: CSSResultOrNative) => s\n : (s: CSSResultOrNative) =>\n s instanceof CSSStyleSheet ? cssResultFromStyleSheet(s) : s;\n","/**\n * @license\n * Copyright 2017 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */\n\n/**\n * Use this module if you want to create your own base class extending\n * {@link ReactiveElement}.\n * @packageDocumentation\n */\n\nimport {\n getCompatibleStyle,\n adoptStyles,\n CSSResultGroup,\n CSSResultOrNative,\n} from './css-tag.js';\nimport type {\n ReactiveController,\n ReactiveControllerHost,\n} from './reactive-controller.js';\n\n// In the Node build, this import will be injected by Rollup:\n// import {HTMLElement, customElements} from '@lit-labs/ssr-dom-shim';\n\nexport * from './css-tag.js';\nexport type {\n ReactiveController,\n ReactiveControllerHost,\n} from './reactive-controller.js';\n\n/**\n * Removes the `readonly` modifier from properties in the union K.\n *\n * This is a safer way to cast a value to a type with a mutable version of a\n * readonly field, than casting to an interface with the field re-declared\n * because it preserves the type of all the fields and warns on typos.\n */\ntype Mutable = Omit & {\n -readonly [P in keyof Pick]: P extends K ? T[P] : never;\n};\n\n// TODO (justinfagnani): Add `hasOwn` here when we ship ES2022\nconst {\n is,\n defineProperty,\n getOwnPropertyDescriptor,\n getOwnPropertyNames,\n getOwnPropertySymbols,\n getPrototypeOf,\n} = Object;\n\nconst NODE_MODE = false;\n\n// Lets a minifier replace globalThis references with a minified name\nconst global = globalThis;\n\nif (NODE_MODE) {\n global.customElements ??= customElements;\n}\n\nconst DEV_MODE = true;\n\nlet issueWarning: (code: string, warning: string) => void;\n\nconst trustedTypes = (global as unknown as {trustedTypes?: {emptyScript: ''}})\n .trustedTypes;\n\n// Temporary workaround for https://crbug.com/993268\n// Currently, any attribute starting with \"on\" is considered to be a\n// TrustedScript source. Such boolean attributes must be set to the equivalent\n// trusted emptyScript value.\nconst emptyStringForBooleanAttribute = trustedTypes\n ? (trustedTypes.emptyScript as unknown as '')\n : '';\n\nconst polyfillSupport = DEV_MODE\n ? global.reactiveElementPolyfillSupportDevMode\n : global.reactiveElementPolyfillSupport;\n\nif (DEV_MODE) {\n // Ensure warnings are issued only 1x, even if multiple versions of Lit\n // are loaded.\n const issuedWarnings: Set = (global.litIssuedWarnings ??=\n new Set());\n\n // Issue a warning, if we haven't already.\n issueWarning = (code: string, warning: string) => {\n warning += ` See https://lit.dev/msg/${code} for more information.`;\n if (!issuedWarnings.has(warning)) {\n console.warn(warning);\n issuedWarnings.add(warning);\n }\n };\n\n issueWarning(\n 'dev-mode',\n `Lit is in dev mode. Not recommended for production!`\n );\n\n // Issue polyfill support warning.\n if (global.ShadyDOM?.inUse && polyfillSupport === undefined) {\n issueWarning(\n 'polyfill-support-missing',\n `Shadow DOM is being polyfilled via \\`ShadyDOM\\` but ` +\n `the \\`polyfill-support\\` module has not been loaded.`\n );\n }\n}\n\n/**\n * Contains types that are part of the unstable debug API.\n *\n * Everything in this API is not stable and may change or be removed in the future,\n * even on patch releases.\n */\n// eslint-disable-next-line @typescript-eslint/no-namespace\nexport namespace ReactiveUnstable {\n /**\n * When Lit is running in dev mode and `window.emitLitDebugLogEvents` is true,\n * we will emit 'lit-debug' events to window, with live details about the update and render\n * lifecycle. These can be useful for writing debug tooling and visualizations.\n *\n * Please be aware that running with window.emitLitDebugLogEvents has performance overhead,\n * making certain operations that are normally very cheap (like a no-op render) much slower,\n * because we must copy data and dispatch events.\n */\n // eslint-disable-next-line @typescript-eslint/no-namespace\n export namespace DebugLog {\n export type Entry = Update;\n export interface Update {\n kind: 'update';\n }\n }\n}\n\ninterface DebugLoggingWindow {\n // Even in dev mode, we generally don't want to emit these events, as that's\n // another level of cost, so only emit them when DEV_MODE is true _and_ when\n // window.emitLitDebugEvents is true.\n emitLitDebugLogEvents?: boolean;\n}\n\n/**\n * Useful for visualizing and logging insights into what the Lit template system is doing.\n *\n * Compiled out of prod mode builds.\n */\nconst debugLogEvent = DEV_MODE\n ? (event: ReactiveUnstable.DebugLog.Entry) => {\n const shouldEmit = (global as unknown as DebugLoggingWindow)\n .emitLitDebugLogEvents;\n if (!shouldEmit) {\n return;\n }\n global.dispatchEvent(\n new CustomEvent('lit-debug', {\n detail: event,\n })\n );\n }\n : undefined;\n\n/*\n * When using Closure Compiler, JSCompiler_renameProperty(property, object) is\n * replaced at compile time by the munged name for object[property]. We cannot\n * alias this function, so we have to use a small shim that has the same\n * behavior when not compiling.\n */\n/*@__INLINE__*/\nconst JSCompiler_renameProperty =

(\n prop: P,\n _obj: unknown\n): P => prop;\n\n/**\n * Converts property values to and from attribute values.\n */\nexport interface ComplexAttributeConverter {\n /**\n * Called to convert an attribute value to a property\n * value.\n */\n fromAttribute?(value: string | null, type?: TypeHint): Type;\n\n /**\n * Called to convert a property value to an attribute\n * value.\n *\n * It returns unknown instead of string, to be compatible with\n * https://github.com/WICG/trusted-types (and similar efforts).\n */\n toAttribute?(value: Type, type?: TypeHint): unknown;\n}\n\ntype AttributeConverter =\n | ComplexAttributeConverter\n | ((value: string | null, type?: TypeHint) => Type);\n\n/**\n * Defines options for a property accessor.\n */\nexport interface PropertyDeclaration {\n /**\n * When set to `true`, indicates the property is internal private state. The\n * property should not be set by users. When using TypeScript, this property\n * should be marked as `private` or `protected`, and it is also a common\n * practice to use a leading `_` in the name. The property is not added to\n * `observedAttributes`.\n */\n readonly state?: boolean;\n\n /**\n * Indicates how and whether the property becomes an observed attribute.\n * If the value is `false`, the property is not added to `observedAttributes`.\n * If true or absent, the lowercased property name is observed (e.g. `fooBar`\n * becomes `foobar`). If a string, the string value is observed (e.g\n * `attribute: 'foo-bar'`).\n */\n readonly attribute?: boolean | string;\n\n /**\n * Indicates the type of the property. This is used only as a hint for the\n * `converter` to determine how to convert the attribute\n * to/from a property.\n */\n readonly type?: TypeHint;\n\n /**\n * Indicates how to convert the attribute to/from a property. If this value\n * is a function, it is used to convert the attribute value a the property\n * value. If it's an object, it can have keys for `fromAttribute` and\n * `toAttribute`. If no `toAttribute` function is provided and\n * `reflect` is set to `true`, the property value is set directly to the\n * attribute. A default `converter` is used if none is provided; it supports\n * `Boolean`, `String`, `Number`, `Object`, and `Array`. Note,\n * when a property changes and the converter is used to update the attribute,\n * the property is never updated again as a result of the attribute changing,\n * and vice versa.\n */\n readonly converter?: AttributeConverter;\n\n /**\n * Indicates if the property should reflect to an attribute.\n * If `true`, when the property is set, the attribute is set using the\n * attribute name determined according to the rules for the `attribute`\n * property option and the value of the property converted using the rules\n * from the `converter` property option.\n */\n readonly reflect?: boolean;\n\n /**\n * A function that indicates if a property should be considered changed when\n * it is set. The function should take the `newValue` and `oldValue` and\n * return `true` if an update should be requested.\n */\n hasChanged?(value: Type, oldValue: Type): boolean;\n\n /**\n * Indicates whether an accessor will be created for this property. By\n * default, an accessor will be generated for this property that requests an\n * update when set. If this flag is `true`, no accessor will be created, and\n * it will be the user's responsibility to call\n * `this.requestUpdate(propertyName, oldValue)` to request an update when\n * the property changes.\n */\n readonly noAccessor?: boolean;\n\n /**\n * Whether this property is wrapping accessors. This is set by `@property`\n * to control the initial value change and reflection logic.\n *\n * @internal\n */\n wrapped?: boolean;\n}\n\n/**\n * Map of properties to PropertyDeclaration options. For each property an\n * accessor is made, and the property is processed according to the\n * PropertyDeclaration options.\n */\nexport interface PropertyDeclarations {\n readonly [key: string]: PropertyDeclaration;\n}\n\ntype PropertyDeclarationMap = Map;\n\ntype AttributeMap = Map;\n\n/**\n * A Map of property keys to values.\n *\n * Takes an optional type parameter T, which when specified as a non-any,\n * non-unknown type, will make the Map more strongly-typed, associating the map\n * keys with their corresponding value type on T.\n *\n * Use `PropertyValues` when overriding ReactiveElement.update() and\n * other lifecycle methods in order to get stronger type-checking on keys\n * and values.\n */\n// This type is conditional so that if the parameter T is not specified, or\n// is `any`, the type will include `Map`. Since T is not\n// given in the uses of PropertyValues in this file, all uses here fallback to\n// meaning `Map`, but if a developer uses\n// `PropertyValues` (or any other value for T) they will get a\n// strongly-typed Map type.\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport type PropertyValues = T extends object\n ? PropertyValueMap\n : Map;\n\n/**\n * Do not use, instead prefer {@linkcode PropertyValues}.\n */\n// This type must be exported such that JavaScript generated by the Google\n// Closure Compiler can import a type reference.\nexport interface PropertyValueMap extends Map {\n get(k: K): T[K] | undefined;\n set(key: K, value: T[K]): this;\n has(k: K): boolean;\n delete(k: K): boolean;\n}\n\nexport const defaultConverter: ComplexAttributeConverter = {\n toAttribute(value: unknown, type?: unknown): unknown {\n switch (type) {\n case Boolean:\n value = value ? emptyStringForBooleanAttribute : null;\n break;\n case Object:\n case Array:\n // if the value is `null` or `undefined` pass this through\n // to allow removing/no change behavior.\n value = value == null ? value : JSON.stringify(value);\n break;\n }\n return value;\n },\n\n fromAttribute(value: string | null, type?: unknown) {\n let fromValue: unknown = value;\n switch (type) {\n case Boolean:\n fromValue = value !== null;\n break;\n case Number:\n fromValue = value === null ? null : Number(value);\n break;\n case Object:\n case Array:\n // Do *not* generate exception when invalid JSON is set as elements\n // don't normally complain on being mis-configured.\n // TODO(sorvell): Do generate exception in *dev mode*.\n try {\n // Assert to adhere to Bazel's \"must type assert JSON parse\" rule.\n fromValue = JSON.parse(value!) as unknown;\n } catch (e) {\n fromValue = null;\n }\n break;\n }\n return fromValue;\n },\n};\n\nexport interface HasChanged {\n (value: unknown, old: unknown): boolean;\n}\n\n/**\n * Change function that returns true if `value` is different from `oldValue`.\n * This method is used as the default for a property's `hasChanged` function.\n */\nexport const notEqual: HasChanged = (value: unknown, old: unknown): boolean =>\n !is(value, old);\n\nconst defaultPropertyDeclaration: PropertyDeclaration = {\n attribute: true,\n type: String,\n converter: defaultConverter,\n reflect: false,\n hasChanged: notEqual,\n};\n\n/**\n * A string representing one of the supported dev mode warning categories.\n */\nexport type WarningKind =\n | 'change-in-update'\n | 'migration'\n | 'async-perform-update';\n\nexport type Initializer = (element: ReactiveElement) => void;\n\n// Temporary, until google3 is on TypeScript 5.2\ndeclare global {\n interface SymbolConstructor {\n readonly metadata: unique symbol;\n }\n}\n\n// Ensure metadata is enabled. TypeScript does not polyfill\n// Symbol.metadata, so we must ensure that it exists.\n(Symbol as {metadata: symbol}).metadata ??= Symbol('metadata');\n\ndeclare global {\n // This is public global API, do not change!\n // eslint-disable-next-line no-var\n var litPropertyMetadata: WeakMap<\n object,\n Map\n >;\n}\n\n// Map from a class's metadata object to property options\n// Note that we must use nullish-coalescing assignment so that we only use one\n// map even if we load multiple version of this module.\nglobal.litPropertyMetadata ??= new WeakMap<\n object,\n Map\n>();\n\n/**\n * Base element class which manages element properties and attributes. When\n * properties change, the `update` method is asynchronously called. This method\n * should be supplied by subclasses to render updates as desired.\n * @noInheritDoc\n */\nexport abstract class ReactiveElement\n // In the Node build, this `extends` clause will be substituted with\n // `(globalThis.HTMLElement ?? HTMLElement)`.\n //\n // This way, we will first prefer any global `HTMLElement` polyfill that the\n // user has assigned, and then fall back to the `HTMLElement` shim which has\n // been imported (see note at the top of this file about how this import is\n // generated by Rollup). Note that the `HTMLElement` variable has been\n // shadowed by this import, so it no longer refers to the global.\n extends HTMLElement\n implements ReactiveControllerHost\n{\n // Note: these are patched in only in DEV_MODE.\n /**\n * Read or set all the enabled warning categories for this class.\n *\n * This property is only used in development builds.\n *\n * @nocollapse\n * @category dev-mode\n */\n static enabledWarnings?: WarningKind[];\n\n /**\n * Enable the given warning category for this class.\n *\n * This method only exists in development builds, so it should be accessed\n * with a guard like:\n *\n * ```ts\n * // Enable for all ReactiveElement subclasses\n * ReactiveElement.enableWarning?.('migration');\n *\n * // Enable for only MyElement and subclasses\n * MyElement.enableWarning?.('migration');\n * ```\n *\n * @nocollapse\n * @category dev-mode\n */\n static enableWarning?: (warningKind: WarningKind) => void;\n\n /**\n * Disable the given warning category for this class.\n *\n * This method only exists in development builds, so it should be accessed\n * with a guard like:\n *\n * ```ts\n * // Disable for all ReactiveElement subclasses\n * ReactiveElement.disableWarning?.('migration');\n *\n * // Disable for only MyElement and subclasses\n * MyElement.disableWarning?.('migration');\n * ```\n *\n * @nocollapse\n * @category dev-mode\n */\n static disableWarning?: (warningKind: WarningKind) => void;\n\n /**\n * Adds an initializer function to the class that is called during instance\n * construction.\n *\n * This is useful for code that runs against a `ReactiveElement`\n * subclass, such as a decorator, that needs to do work for each\n * instance, such as setting up a `ReactiveController`.\n *\n * ```ts\n * const myDecorator = (target: typeof ReactiveElement, key: string) => {\n * target.addInitializer((instance: ReactiveElement) => {\n * // This is run during construction of the element\n * new MyController(instance);\n * });\n * }\n * ```\n *\n * Decorating a field will then cause each instance to run an initializer\n * that adds a controller:\n *\n * ```ts\n * class MyElement extends LitElement {\n * @myDecorator foo;\n * }\n * ```\n *\n * Initializers are stored per-constructor. Adding an initializer to a\n * subclass does not add it to a superclass. Since initializers are run in\n * constructors, initializers will run in order of the class hierarchy,\n * starting with superclasses and progressing to the instance's class.\n *\n * @nocollapse\n */\n static addInitializer(initializer: Initializer) {\n this.__prepare();\n (this._initializers ??= []).push(initializer);\n }\n\n static _initializers?: Initializer[];\n\n /*\n * Due to closure compiler ES6 compilation bugs, @nocollapse is required on\n * all static methods and properties with initializers. Reference:\n * - https://github.com/google/closure-compiler/issues/1776\n */\n\n /**\n * Maps attribute names to properties; for example `foobar` attribute to\n * `fooBar` property. Created lazily on user subclasses when finalizing the\n * class.\n * @nocollapse\n */\n private static __attributeToPropertyMap: AttributeMap;\n\n /**\n * Marks class as having been finalized, which includes creating properties\n * from `static properties`, but does *not* include all properties created\n * from decorators.\n * @nocollapse\n */\n protected static finalized: true | undefined;\n\n /**\n * Memoized list of all element properties, including any superclass\n * properties. Created lazily on user subclasses when finalizing the class.\n *\n * @nocollapse\n * @category properties\n */\n static elementProperties: PropertyDeclarationMap;\n\n /**\n * User-supplied object that maps property names to `PropertyDeclaration`\n * objects containing options for configuring reactive properties. When\n * a reactive property is set the element will update and render.\n *\n * By default properties are public fields, and as such, they should be\n * considered as primarily settable by element users, either via attribute or\n * the property itself.\n *\n * Generally, properties that are changed by the element should be private or\n * protected fields and should use the `state: true` option. Properties\n * marked as `state` do not reflect from the corresponding attribute\n *\n * However, sometimes element code does need to set a public property. This\n * should typically only be done in response to user interaction, and an event\n * should be fired informing the user; for example, a checkbox sets its\n * `checked` property when clicked and fires a `changed` event. Mutating\n * public properties should typically not be done for non-primitive (object or\n * array) properties. In other cases when an element needs to manage state, a\n * private property set with the `state: true` option should be used. When\n * needed, state properties can be initialized via public properties to\n * facilitate complex interactions.\n * @nocollapse\n * @category properties\n */\n static properties: PropertyDeclarations;\n\n /**\n * Memoized list of all element styles.\n * Created lazily on user subclasses when finalizing the class.\n * @nocollapse\n * @category styles\n */\n static elementStyles: Array = [];\n\n /**\n * Array of styles to apply to the element. The styles should be defined\n * using the {@linkcode css} tag function, via constructible stylesheets, or\n * imported from native CSS module scripts.\n *\n * Note on Content Security Policy:\n *\n * Element styles are implemented with `