12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091 |
- "use strict";
- var Promise = require("./Promise");
- function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
- /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- *
- */
- /**
- * Deferred provides a Promise-like API that exposes methods to resolve and
- * reject the Promise. It is most useful when converting non-Promise code to use
- * Promises.
- *
- * If you want to export the Promise without exposing access to the resolve and
- * reject methods, you should export `getPromise` which returns a Promise with
- * the same semantics excluding those methods.
- */
- var Deferred =
- /*#__PURE__*/
- function () {
- function Deferred() {
- var _this = this;
- _defineProperty(this, "_settled", void 0);
- _defineProperty(this, "_promise", void 0);
- _defineProperty(this, "_resolve", void 0);
- _defineProperty(this, "_reject", void 0);
- this._settled = false;
- this._promise = new Promise(function (resolve, reject) {
- _this._resolve = resolve;
- _this._reject = reject;
- });
- }
- var _proto = Deferred.prototype;
- _proto.getPromise = function getPromise() {
- return this._promise;
- };
- _proto.resolve = function resolve(value) {
- this._settled = true;
- this._resolve(value);
- };
- _proto.reject = function reject(reason) {
- this._settled = true;
- this._reject(reason);
- };
- _proto["catch"] = function _catch(onReject) {
- return Promise.prototype["catch"].apply(this._promise, arguments);
- };
- _proto.then = function then(onFulfill, onReject) {
- return Promise.prototype.then.apply(this._promise, arguments);
- };
- _proto.done = function done(onFulfill, onReject) {
- // Embed the polyfill for the non-standard Promise.prototype.done so that
- // users of the open source fbjs don't need a custom lib for Promise
- var promise = arguments.length ? this._promise.then.apply(this._promise, arguments) : this._promise;
- promise.then(undefined, function (err) {
- setTimeout(function () {
- throw err;
- }, 0);
- });
- };
- _proto.isSettled = function isSettled() {
- return this._settled;
- };
- return Deferred;
- }();
- module.exports = Deferred;
|