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/// <reference types="./TaskQueue.d.ts" />/** * Copyright 2020 Google Inc. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *     http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) ||  function (receiver, state, value, kind, f) {    if (kind === "m") throw new TypeError("Private method is not writable");    if (kind === "a" && !f) {      throw new TypeError("Private accessor was defined without a setter");    }    if (      typeof state === "function"        ? receiver !== state || !f        : !state.has(receiver)    ) {      throw new TypeError(        "Cannot write private member to an object whose class did not declare it",      );    }    return (kind === "a"      ? f.call(receiver, value)      : f      ? f.value = value      : state.set(receiver, value)),      value;  };var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) ||  function (receiver, state, kind, f) {    if (kind === "a" && !f) {      throw new TypeError("Private accessor was defined without a getter");    }    if (      typeof state === "function"        ? receiver !== state || !f        : !state.has(receiver)    ) {      throw new TypeError(        "Cannot read private member from an object whose class did not declare it",      );    }    return kind === "m"      ? f      : kind === "a"      ? f.call(receiver)      : f      ? f.value      : state.get(receiver);  };var _TaskQueue_chain;/** * @internal */export class TaskQueue {  constructor() {    _TaskQueue_chain.set(this, void 0);    __classPrivateFieldSet(this, _TaskQueue_chain, Promise.resolve(), "f");  }  postTask(task) {    const result = __classPrivateFieldGet(this, _TaskQueue_chain, "f").then(      task,    );    __classPrivateFieldSet(      this,      _TaskQueue_chain,      result.then(() => {        return undefined;      }, () => {        return undefined;      }),      "f",    );    return result;  }}_TaskQueue_chain = new WeakMap();//# sourceMappingURL=TaskQueue.js.map