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
5function produce_object() {
6  var real_length = 1;
7  function set_length() { real_length = "boom"; }
8  function get_length() { return real_length; }
9  var o = { __proto__:Array.prototype , 0:"x" };
10  Object.defineProperty(o, "length", { set:set_length, get:get_length })
11  return o;
12}
13
14assertEquals(2, produce_object().push("y"));
15assertEquals(2, produce_object().unshift("y"));
16