| // Copyright 2016 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --allow-natives-syntax |
| |
| var pop = Array.prototype.pop; |
| |
| function foo(a) { |
| a.length; |
| return pop.call(a); |
| } |
| |
| var a = new Array(4); |
| var o = {} |
| o.__defineGetter__(0, function() { return 1; }); |
| |
| %PrepareFunctionForOptimization(foo); |
| assertEquals(undefined, foo(a)); |
| assertEquals(undefined, foo(a)); |
| %OptimizeFunctionOnNextCall(foo); |
| assertEquals(undefined, foo(a)); |
| Array.prototype.__proto__ = o; |
| assertEquals(1, foo(a)); |