Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +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 | |
| 5 | // Flags: --allow-natives-syntax |
| 6 | |
| 7 | |
| 8 | (function TestProtoDeopt() { |
| 9 | var proto = {}; |
| 10 | |
| 11 | function deoptMe() { |
| 12 | %DeoptimizeFunction(f); |
| 13 | return proto; |
| 14 | } |
| 15 | |
| 16 | function checkObject(name, value, o) { |
| 17 | assertSame(proto, Object.getPrototypeOf(o)); |
| 18 | assertTrue(o.hasOwnProperty(name)); |
| 19 | assertEquals(value, o[name]); |
| 20 | } |
| 21 | |
| 22 | function f(name, value) { |
| 23 | return { [name]: value, __proto__: deoptMe() }; |
| 24 | } |
| 25 | |
| 26 | checkObject("a", 1, f("a", 1)); |
| 27 | checkObject("b", 2, f("b", 2)); |
| 28 | %OptimizeFunctionOnNextCall(f); |
| 29 | checkObject("c", 3, f("c", 3)); |
| 30 | })(); |