| // Copyright 2014 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. |
| |
| var o = { __proto__:Array.prototype, 0:"x" }; |
| function boomer() { return 0; } |
| Object.defineProperty(o, "length", { get:boomer, set:boomer }); |
| Object.seal(o); |
| |
| assertDoesNotThrow(function() { o.push(1); }); |
| assertEquals(0, o.length); |
| assertEquals(1, o[0]); |
| |
| assertDoesNotThrow(function() { o.unshift(2); }); |
| assertEquals(0, o.length); |
| assertEquals(2, o[0]); |
