24 lines
561 B
JavaScript
24 lines
561 B
JavaScript
|
// 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; });
|
||
|
|
|
||
|
|
assertEquals(undefined, foo(a));
|
||
|
|
assertEquals(undefined, foo(a));
|
||
|
|
%OptimizeFunctionOnNextCall(foo);
|
||
|
|
assertEquals(undefined, foo(a));
|
||
|
|
Array.prototype.__proto__ = o;
|
||
|
|
assertEquals(1, foo(a));
|