| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-array.prototype.copywithin |
| description: > |
| Return abrupt from ToLength(Get(O, "length")). |
| info: | |
| 22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] ) |
| |
| 1. Let O be ToObject(this value). |
| 2. ReturnIfAbrupt(O). |
| 3. Let len be ToLength(Get(O, "length")). |
| 4. ReturnIfAbrupt(len). |
| ---*/ |
| |
| var o1 = {}; |
| |
| Object.defineProperty(o1, 'length', { |
| get: function() { |
| throw new Test262Error(); |
| } |
| }); |
| assert.throws(Test262Error, function() { |
| [].copyWithin.call(o1); |
| }); |
| |
| var o2 = { |
| length: { |
| valueOf: function() { |
| throw new Test262Error(); |
| } |
| } |
| }; |
| assert.throws(Test262Error, function() { |
| [].copyWithin.call(o2); |
| }); |