| // Copyright (c) 2012 Ecma International. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-array.prototype.lastindexof |
| description: > |
| Array.prototype.lastIndexOf - 'length' is own accessor property |
| that overrides an inherited accessor property on an Array-like |
| object |
| ---*/ |
| |
| var proto = {}; |
| Object.defineProperty(proto, "length", { |
| get: function() { |
| return 0; |
| }, |
| configurable: true |
| }); |
| |
| var Con = function() {}; |
| Con.prototype = proto; |
| |
| var child = new Con(); |
| child[1] = true; |
| |
| Object.defineProperty(child, "length", { |
| get: function() { |
| return 2; |
| }, |
| configurable: true |
| }); |
| |
| assert.sameValue(Array.prototype.lastIndexOf.call(child, true), 1, 'Array.prototype.lastIndexOf.call(child, true)'); |
