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| 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 function push_wrapper(array, value) { |
| 8 array.push(value); |
| 9 } |
| 10 |
| 11 // Test that optimization of Array.push() for non-Arrays works correctly. |
| 12 var object = { x : 8, length: 3 }; |
| 13 object[18] = 5; |
| 14 object.__proto__ = Array.prototype; |
| 15 push_wrapper(object, 1); |
| 16 push_wrapper(object, 1); |
| 17 assertEquals(5, object.length); |
| 18 %OptimizeFunctionOnNextCall(push_wrapper); |
| 19 push_wrapper(object, 1); |
| 20 push_wrapper(object, 1); |
| 21 assertEquals(8, object.x); |
| 22 assertEquals(7, object.length); |
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