| // 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.reduce |
| description: > |
| Array.prototype.reduce - decreasing length of array in step 8 |
| causes deleted index property not to be visited |
| ---*/ |
| |
| var accessed = false; |
| var testResult = true; |
| |
| function callbackfn(accum, val, idx, obj) { |
| accessed = true; |
| if (idx === 2) { |
| testResult = false; |
| } |
| } |
| |
| var arr = [0, 1, 2, 3]; |
| |
| Object.defineProperty(arr, "0", { |
| get: function() { |
| arr.length = 2; |
| return 0; |
| }, |
| configurable: true |
| }); |
| |
| arr.reduce(callbackfn); |
| |
| assert(testResult, 'testResult !== true'); |
| assert(accessed, 'accessed !== true'); |
