| Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 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 | |||||
| 5 | function Bar() { } | ||||
| 6 | function Baz() { } | ||||
| 7 | Baz.prototype = { __proto__: new Bar() } | ||||
| 8 | var x = new Baz(); | ||||
| 9 | function foo(y) { return y instanceof Bar; } | ||||
| 10 | assertTrue(foo(x)); | ||||
| 11 | Baz.prototype.__proto__ = null; | ||||
| 12 | assertFalse(foo(x)); | ||||