The Tor Browser / file comparison
comparison: toolkit/devtools/deprecated-sync-thenables.js
toolkit/devtools/deprecated-sync-thenables.js
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
inserted
replaced
| -1:000000000000 | 0:cf325067ee99 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 /** | |
| 6 * THIS MODULE IS DEPRECATED. IMPORT "Promise.jsm" INSTEAD. | |
| 7 */ | |
| 8 | |
| 9 "use strict"; | |
| 10 | |
| 11 this.Promise = {}; | |
| 12 | |
| 13 if (typeof(require) === "function") { | |
| 14 module.exports = Promise; | |
| 15 } else { | |
| 16 this.EXPORTED_SYMBOLS = ["Promise"]; | |
| 17 } | |
| 18 | |
| 19 function fulfilled(value) { | |
| 20 return { then: function then(fulfill) { fulfill(value); } }; | |
| 21 } | |
| 22 | |
| 23 function rejected(reason) { | |
| 24 return { then: function then(fulfill, reject) { reject(reason); } }; | |
| 25 } | |
| 26 | |
| 27 function isPromise(value) { | |
| 28 return value && typeof(value.then) === 'function'; | |
| 29 } | |
| 30 | |
| 31 function defer() { | |
| 32 var observers = []; | |
| 33 var result = null; | |
| 34 var promise = { | |
| 35 then: function then(onFulfill, onError) { | |
| 36 var deferred = defer(); | |
| 37 | |
| 38 function resolve(value) { | |
| 39 try { | |
| 40 deferred.resolve(onFulfill ? onFulfill(value) : value); | |
| 41 } catch (error) { | |
| 42 deferred.resolve(rejected(error)); | |
| 43 } | |
| 44 } | |
| 45 | |
| 46 function reject(reason) { | |
| 47 try { | |
| 48 if (onError) deferred.resolve(onError(reason)); | |
| 49 else deferred.resolve(rejected(reason)); | |
| 50 } catch (error) { | |
| 51 deferred.resolve(rejected(error)); | |
| 52 } | |
| 53 } | |
| 54 | |
| 55 if (observers) { | |
| 56 observers.push({ resolve: resolve, reject: reject }); | |
| 57 } else { | |
| 58 result.then(resolve, reject); | |
| 59 } | |
| 60 | |
| 61 return deferred.promise; | |
| 62 } | |
| 63 }; | |
| 64 | |
| 65 var deferred = { | |
| 66 promise: promise, | |
| 67 resolve: function resolve(value) { | |
| 68 if (!result) { | |
| 69 result = isPromise(value) ? value : fulfilled(value); | |
| 70 while (observers.length) { | |
| 71 var observer = observers.shift(); | |
| 72 result.then(observer.resolve, observer.reject); | |
| 73 } | |
| 74 observers = null; | |
| 75 } | |
| 76 }, | |
| 77 reject: function reject(reason) { | |
| 78 deferred.resolve(rejected(reason)); | |
| 79 } | |
| 80 }; | |
| 81 | |
| 82 return deferred; | |
| 83 } | |
| 84 Promise.defer = defer; | |
| 85 | |
| 86 function resolve(value) { | |
| 87 var deferred = defer(); | |
| 88 deferred.resolve(value); | |
| 89 return deferred.promise; | |
| 90 } | |
| 91 Promise.resolve = resolve; | |
| 92 | |
| 93 function reject(reason) { | |
| 94 var deferred = defer(); | |
| 95 deferred.reject(reason); | |
| 96 return deferred.promise; | |
| 97 } | |
| 98 Promise.reject = reject; | |
| 99 | |
| 100 var promised = (function() { | |
| 101 var call = Function.call; | |
| 102 var concat = Array.prototype.concat; | |
| 103 function execute(args) { return call.apply(call, args) } | |
| 104 function promisedConcat(promises, unknown) { | |
| 105 return promises.then(function(values) { | |
| 106 return resolve(unknown).then(function(value) { | |
| 107 return values.concat([ value ]); | |
| 108 }); | |
| 109 }); | |
| 110 } | |
| 111 return function promised(f) { | |
| 112 return function promised() { | |
| 113 return concat.apply([ f, this ], arguments). | |
| 114 reduce(promisedConcat, resolve([])). | |
| 115 then(execute); | |
| 116 }; | |
| 117 } | |
| 118 })(); | |
| 119 Promise.all = promised(Array); |
