Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5 | // A non-callable reject function throws eagerly |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6 | |
| 7 | var p = new Promise(function(resolve, reject) { |
| 8 | log.push("resolve"); |
| 9 | resolve(); |
| 10 | }); |
| 11 | |
| 12 | function MyPromise(resolver) { |
| 13 | var reject = undefined; |
| 14 | var resolve = function() { }; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 15 | resolver(resolve, reject); |
| 16 | }; |
| 17 | |
| 18 | MyPromise.prototype = new Promise(function() {}); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 19 | MyPromise.__proto__ = Promise; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 20 | p.constructor = MyPromise; |
| 21 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 22 | assertThrows(()=> p.then(function() { }), TypeError); |