Index: third_party/polymer/components/promise-polyfill/Promise-Statics.js |
diff --git a/third_party/polymer/components/promise-polyfill/Promise-Statics.js b/third_party/polymer/components/promise-polyfill/Promise-Statics.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..49eeb8b3444ccfac876f527ab2a323c6014657fa |
--- /dev/null |
+++ b/third_party/polymer/components/promise-polyfill/Promise-Statics.js |
@@ -0,0 +1,49 @@ |
+/** |
+@license |
+Copyright (c) 2016 The Polymer Project Authors. All rights reserved. |
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
+Code distributed by Google as part of the polymer project is also |
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
+*/ |
+Promise.all = Promise.all || function () { |
+ var args = Array.prototype.slice.call(arguments.length === 1 && Array.isArray(arguments[0]) ? arguments[0] : arguments); |
+ |
+ return new Promise(function (resolve, reject) { |
+ if (args.length === 0) return resolve([]); |
+ var remaining = args.length; |
+ function res(i, val) { |
+ try { |
+ if (val && (typeof val === 'object' || typeof val === 'function')) { |
+ var then = val.then; |
+ if (typeof then === 'function') { |
+ then.call(val, function (val) { res(i, val) }, reject); |
+ return; |
+ } |
+ } |
+ args[i] = val; |
+ if (--remaining === 0) { |
+ resolve(args); |
+ } |
+ } catch (ex) { |
+ reject(ex); |
+ } |
+ } |
+ for (var i = 0; i < args.length; i++) { |
+ res(i, args[i]); |
+ } |
+ }); |
+}; |
+ |
+Promise.race = Promise.race || function(values) { |
+ // TODO(bradfordcsmith): To be consistent with the ECMAScript spec, this |
+ // method should take any iterable, not just an array. |
+ var forcedArray = /** @type {!Array<!Thenable>} */ (values); |
+ return new Promise(function (resolve, reject) { |
+ for(var i = 0, len = forcedArray.length; i < len; i++) { |
+ forcedArray[i].then(resolve, reject); |
+ } |
+ }); |
+}; |
+ |