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* Synchronously map an identifier or an array of identifiers to the best\n * `FluentBundle` instance(s).\n *\n * @param bundles - An iterable of bundles to sift through.\n * @param ids - An id or ids to map.\n */\nexport function mapBundleSync(bundles, ids) {\n    if (!Array.isArray(ids)) {\n        return getBundleForId(bundles, ids);\n    }\n    return ids.map(id => getBundleForId(bundles, id));\n}\n/*\n * Find the best `FluentBundle` with the translation for `id`.\n */\nfunction getBundleForId(bundles, id) {\n    for (const bundle of bundles) {\n        if (bundle.hasMessage(id)) {\n            return bundle;\n        }\n    }\n    return null;\n}\n","/*\n * Asynchronously map an identifier or an array of identifiers to the best\n * `FluentBundle` instance(s).\n *\n * @param bundles - An iterable of bundles to sift through.\n * @param ids - An id or ids to map.\n */\nexport async function mapBundleAsync(bundles, ids) {\n    if (!Array.isArray(ids)) {\n        for await (const bundle of bundles) {\n            if (bundle.hasMessage(ids)) {\n                return bundle;\n            }\n        }\n        return null;\n    }\n    const foundBundles = new Array(ids.length).fill(null);\n    let remainingCount = ids.length;\n    for await (const bundle of bundles) {\n        for (const [index, id] of ids.entries()) {\n            if (!foundBundles[index] && bundle.hasMessage(id)) {\n                foundBundles[index] = bundle;\n                remainingCount--;\n            }\n            // Return early when all ids have been mapped to bundles.\n            if (remainingCount === 0) {\n                return foundBundles;\n            }\n        }\n    }\n    return foundBundles;\n}\n","/*\n * @module fluent-sequence\n * @overview Manage ordered sequences of FluentBundles.\n */\nexport { mapBundleSync } from \"./map_sync.js\";\nexport { mapBundleAsync } from \"./map_async.js\";\n","/*\n * Base CachedIterable class.\n */\nexport default class CachedIterable extends Array {\n    /**\n     * Create a `CachedIterable` instance from an iterable or, if another\n     * instance of `CachedIterable` is passed, return it without any\n     * modifications.\n     *\n     * @param {Iterable} iterable\n     * @returns {CachedIterable}\n     */\n    static from(iterable) {\n        if (iterable instanceof this) {\n            return iterable;\n        }\n\n        return new this(iterable);\n    }\n}\n","import CachedIterable from \"./cached_iterable.mjs\";\n\n/*\n * CachedSyncIterable caches the elements yielded by an iterable.\n *\n * It can be used to iterate over an iterable many times without depleting the\n * iterable.\n */\nexport default class CachedSyncIterable extends CachedIterable {\n    /**\n     * Create an `CachedSyncIterable` instance.\n     *\n     * @param {Iterable} iterable\n     * @returns {CachedSyncIterable}\n     */\n    constructor(iterable) {\n        super();\n\n        if (Symbol.iterator in Object(iterable)) {\n            this.iterator = iterable[Symbol.iterator]();\n        } else {\n            throw new TypeError(\"Argument must implement the iteration protocol.\");\n        }\n    }\n\n    [Symbol.iterator]() {\n        const cached = this;\n        let cur = 0;\n\n        return {\n            next() {\n                if (cached.length <= cur) {\n                    cached.push(cached.iterator.next());\n                }\n                return cached[cur++];\n            }\n        };\n    }\n\n    /**\n     * This method allows user to consume the next element from the iterator\n     * into the cache.\n     *\n     * @param {number} count - number of elements to consume\n     */\n    touchNext(count = 1) {\n        let idx = 0;\n        while (idx++ < count) {\n            const last = this[this.length - 1];\n            if (last && last.done) {\n                break;\n            }\n            this.push(this.iterator.next());\n        }\n        // Return the last cached {value, done} object to allow the calling\n        // code to decide if it needs to call touchNext again.\n        return this[this.length - 1];\n    }\n}\n","import CachedIterable from \"./cached_iterable.mjs\";\n\n/*\n * CachedAsyncIterable caches the elements yielded by an async iterable.\n *\n * It can be used to iterate over an iterable many times without depleting the\n * iterable.\n */\nexport default class CachedAsyncIterable extends CachedIterable {\n    /**\n     * Create an `CachedAsyncIterable` instance.\n     *\n     * @param {Iterable} iterable\n     * @returns {CachedAsyncIterable}\n     */\n    constructor(iterable) {\n        super();\n\n        if (Symbol.asyncIterator in Object(iterable)) {\n            this.iterator = iterable[Symbol.asyncIterator]();\n        } else if (Symbol.iterator in Object(iterable)) {\n            this.iterator = iterable[Symbol.iterator]();\n        } else {\n            throw new TypeError(\"Argument must implement the iteration protocol.\");\n        }\n    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args: preparedArgs,\n                message,\n                errors,\n              },\n            });\n            this.dispatchEvent(errorEvent);\n          }\n\n          return formatted;\n        } else {\n          const errorEvent = new CustomEvent(\"fluent-web-error\", {\n            bubbles: true,\n            detail: {\n              messageId,\n              args,\n              errors: [new Error(\"Message object not found\")],\n            },\n          });\n          this.dispatchEvent(errorEvent);\n        }\n      }\n    }\n\n    return null;\n  }\n\n  connectedCallback() {\n    this.dispatchEvent(\n      new CustomEvent(\"fluent-bundles-subscribe\", {\n        bubbles: true,\n        target: this,\n      })\n    );\n    this.render();\n  }\n  disconnectedCallback() {\n    this.dispatchEvent(\n      new CustomEvent(\"fluent-bundles-unsubscribe\", {\n        bubbles: true,\n        target: this,\n      })\n    );\n  }\n\n  set providerBundles(newBundles) {\n    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   this.addEventListener(\"fluent-bundles-unsubscribe\", bundlesUnsubscribe);\n  }\n  disconnectedCallback() {\n    this._listeners = [];\n    this.removeEventListener(\"fluent-bundles-subscribe\", bundlesSubscribe);\n    this.removeEventListener(\"fluent-bundles-unsubscribe\", bundlesUnsubscribe);\n  }\n  get bundles() {\n    return this._bundles;\n  }\n  set bundles(newBundles) {\n    this._bundles = cacheBundles(this, newBundles);\n    this._listeners.forEach((target) => {\n      target.providerBundles = this._bundles;\n    });\n  }\n}\nfunction bundlesSubscribe(event) {\n  const provider = event.currentTarget;\n  provider._listeners.push(event.target);\n  event.target.providerBundles = provider._bundles;\n}\nfunction bundlesUnsubscribe(event) {\n  const provider = event.currentTarget;\n  const i = provider._listeners.findIndex(event.target);\n  if (i >= 0) {\n    provider._listeners.splice(i, 1);\n  }\n}\n\nfunction cacheBundles(el, bundles) {\n  // Allow iterables (usually an array) or null\n  if (bundles) {\n    // Already cached, don't cache it twice\n    if (bundles.constructor === CachedSyncIterable) {\n      return bundles;\n    }\n    // Iterable check: https://stackoverflow.com/a/32538867/2782048\n    if (typeof bundles[Symbol.iterator] === \"function\") {\n      return CachedSyncIterable.from(bundles);\n    }\n  }\n  if (bundles !== null) {\n    el.dispatchEvent(\n      new CustomEvent(\"fluent-web-error\", {\n        bubbles: true,\n        detail: {\n          bundles,\n          errors: [new Error(\"bundles property must be iterable or null\")],\n        },\n      }),\n    );\n  }\n  return null;\n}\n\nfunction semiSafeInnerHTML(el, message) {\n  if (message.value && message.value !== \"{???}\") {\n    const template = document.createElement(\"template\");\n    template.innerHTML = message.value;\n    el.innerHTML = \"\";\n    Array.from(template.content.childNodes).forEach((node) => {\n      el.appendChild(node);\n    });\n  }\n}\n\ncustomElements.define(\n  \"fluent-text\",\n  class extends FluentElement {\n    render() {\n      const message = this.getMessage({\n        messageId: this.getAttribute(MESSAGE_ID_ATTRIBUTE) || this.getAttribute(DEPRECATED_MESSAGE_ID_ATTRIBUTE),\n        args: this.messageArgs,\n        unsafeArgs: this.messageUnsafeArgs,\n      });\n\n      if (message) {\n        semiSafeInnerHTML(this, message);\n      }\n    }\n  }\n);\n\ncustomElements.define(\n  \"fluent-element\",\n  class extends FluentElement {\n    render() {\n      if (this.firstElementChild) {\n        const message = this.getMessage({\n          messageId: this.getAttribute(MESSAGE_ID_ATTRIBUTE) || this.getAttribute(DEPRECATED_MESSAGE_ID_ATTRIBUTE),\n          args: this.messageArgs,\n          unsafeArgs: this.messageUnsafeArgs,\n          whitelist: this.whitelist\n        });\n\n        if (message) {\n          Object.entries(message.attributes).forEach(([name, value]) => {\n            this.firstElementChild.setAttribute(name, value);\n          });\n\n          semiSafeInnerHTML(this.firstElementChild, message);\n        }\n      }\n    }\n  }\n);\n\ncustomElements.define(\"fluent-provider\", FluentProvider);\n"]}