Side by Side Diff: lib/polyfills/promise.js
Issue 29363445:
Issue 4577 - Remove Safari support (Closed)
Patch Set:
Created Nov. 17, 2016, 11:36 a.m.
| Left: | ||
| Right: |
Use n/p to move between diff chunks;
N/P to move between comments.
« no previous file with comments
|
« lib/icon.js ('k')
|
lib/polyfills/url.js » ('j')
|
no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Hide Comments ('s')
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Hide Comments ('s')
| OLD | NEW |
|---|---|
| (Empty) | |
| 1 /* | |
| 2 * This file is part of Adblock Plus <https://adblockplus.org/>, | |
| 3 * Copyright (C) 2006-2016 Eyeo GmbH | |
| 4 * | |
| 5 * Adblock Plus is free software: you can redistribute it and/or modify | |
| 6 * it under the terms of the GNU General Public License version 3 as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * Adblock Plus is distributed in the hope that it will be useful, | |
| 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 * GNU General Public License for more details. | |
| 13 * | |
| 14 * You should have received a copy of the GNU General Public License | |
| 15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. | |
| 16 */ | |
| 17 | |
| 18 (function(global) | |
| 19 { | |
| 20 "use strict"; | |
| 21 | |
| 22 if ("Promise" in global) | |
| 23 return; | |
| 24 | |
| 25 var PENDING = 0; | |
| 26 var FULFILLED = 1; | |
| 27 var REJECTED = 2; | |
| 28 | |
| 29 var Promise = global.Promise = function(executor) | |
| 30 { | |
| 31 this._state = PENDING; | |
| 32 this._value = undefined; | |
| 33 this._subscriptions = []; | |
| 34 | |
| 35 try | |
| 36 { | |
| 37 executor(this._emit.bind(this, FULFILLED), | |
| 38 this._emit.bind(this, REJECTED)); | |
| 39 } | |
| 40 catch (reason) | |
| 41 { | |
| 42 this._emit(REJECTED, reason); | |
| 43 } | |
| 44 }; | |
| 45 | |
| 46 Promise.prototype = { | |
| 47 _dispatch: function(onFulfilled, onRejected, resolve, reject) | |
| 48 { | |
| 49 var callback = this._state == FULFILLED ? onFulfilled : onRejected; | |
| 50 | |
| 51 if (typeof callback == "function") | |
| 52 { | |
| 53 var result; | |
| 54 | |
| 55 try | |
| 56 { | |
| 57 result = callback(this._value); | |
| 58 } | |
| 59 catch (reason) | |
| 60 { | |
| 61 reject(reason); | |
| 62 return; | |
| 63 } | |
| 64 | |
| 65 Promise.resolve(result).then(resolve, reject); | |
| 66 } | |
| 67 else if (this._state == FULFILLED) | |
| 68 { | |
| 69 resolve(this._value); | |
| 70 } | |
| 71 else if (this._state == REJECTED) | |
| 72 { | |
| 73 reject(this._value); | |
| 74 } | |
| 75 }, | |
| 76 _dispatchSubscriptions: function() | |
| 77 { | |
| 78 if (this._state == REJECTED && this._subscriptions.length == 0) | |
| 79 console.error('Uncaught (in promise)', this._value); | |
| 80 | |
| 81 for (var i = 0; i < this._subscriptions.length; i++) | |
| 82 this._dispatch.apply(this, this._subscriptions[i]); | |
| 83 | |
| 84 this._subscriptions = null; | |
| 85 }, | |
| 86 _emit: function(state, value) | |
| 87 { | |
| 88 if (this._state != PENDING) | |
| 89 return; | |
| 90 | |
| 91 this._state = state; | |
| 92 this._value = value; | |
| 93 | |
| 94 setTimeout(this._dispatchSubscriptions.bind(this), 0); | |
| 95 }, | |
| 96 then: function(onFulfilled, onRejected) | |
| 97 { | |
| 98 return new Promise(function(resolve, reject) | |
| 99 { | |
| 100 if (this._subscriptions) | |
| 101 this._subscriptions.push([onFulfilled, onRejected, resolve, reject]); | |
| 102 else | |
| 103 setTimeout( | |
| 104 this._dispatch.bind(this), 0, | |
| 105 onFulfilled, onRejected, resolve, reject | |
| 106 ); | |
| 107 }.bind(this)); | |
| 108 }, | |
| 109 catch: function(onRejected) | |
| 110 { | |
| 111 return this.then(undefined, onRejected); | |
| 112 } | |
| 113 }; | |
| 114 | |
| 115 Promise.resolve = function(value) | |
| 116 { | |
| 117 if (value instanceof Promise) | |
| 118 return value; | |
| 119 return new Promise(function(resolve, reject) { resolve(value); }); | |
| 120 }; | |
| 121 | |
| 122 Promise.reject = function(reason) | |
| 123 { | |
| 124 return new Promise(function(resolve, reject) { reject(reason); }); | |
| 125 }; | |
| 126 | |
| 127 Promise.all = function(promises) | |
| 128 { | |
| 129 return new Promise(function(resolve, reject) | |
| 130 { | |
| 131 var count = promises.length; | |
| 132 var result = new Array(count); | |
| 133 | |
| 134 if (count == 0) | |
| 135 { | |
| 136 resolve(result); | |
| 137 return; | |
| 138 } | |
| 139 | |
| 140 promises.forEach(function(promise, i) | |
| 141 { | |
| 142 Promise.resolve(promise).then( | |
| 143 function(value) | |
| 144 { | |
| 145 result[i] = value; | |
| 146 if (--count == 0) | |
| 147 resolve(result); | |
| 148 }, | |
| 149 reject | |
| 150 ); | |
| 151 }); | |
| 152 }); | |
| 153 }; | |
| 154 })(this); | |
| OLD | NEW |
« no previous file with comments
|
« lib/icon.js ('k')
|
lib/polyfills/url.js » ('j')
|
no next file with comments »
