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98 lines
2.0 KiB
98 lines
2.0 KiB
'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true
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});
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exports.default = void 0;
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var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
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var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
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var Promise = global[Symbol.for('jest-native-promise')] || global.Promise;
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function _defineProperty(obj, key, value) {
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if (key in obj) {
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Object.defineProperty(obj, key, {
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value: value,
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enumerable: true,
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configurable: true,
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writable: true
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});
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} else {
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obj[key] = value;
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}
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return obj;
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}
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/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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class CancelError extends Error {
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constructor() {
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super('Promise was canceled');
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this.name = 'CancelError';
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}
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}
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class PCancelable extends Promise {
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constructor(executor) {
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super(resolve => resolve());
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_defineProperty(this, '_pending', true);
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_defineProperty(this, '_canceled', false);
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_defineProperty(this, '_promise', void 0);
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_defineProperty(this, '_cancel', void 0);
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_defineProperty(this, '_reject', () => {});
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this._promise = new Promise((resolve, reject) => {
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this._reject = reject;
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return executor(
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fn => {
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this._cancel = fn;
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},
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val => {
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this._pending = false;
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resolve(val);
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},
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err => {
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this._pending = false;
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reject(err);
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}
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);
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});
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}
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then(onFulfilled, onRejected) {
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return this._promise.then(onFulfilled, onRejected);
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}
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catch(onRejected) {
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return this._promise.catch(onRejected);
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}
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cancel() {
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if (!this._pending || this._canceled) {
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return;
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}
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if (typeof this._cancel === 'function') {
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try {
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this._cancel();
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} catch (err) {
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this._reject(err);
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}
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}
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this._canceled = true;
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this._reject(new CancelError());
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}
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}
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exports.default = PCancelable;
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