| // 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 setting property value - Set(O, toKey, fromVal, true). |
| info: | |
| 22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] ) |
| |
| ... |
| 5. Let relativeTarget be ToInteger(target). |
| 6. ReturnIfAbrupt(relativeTarget). |
| 7. If relativeTarget < 0, let to be max((len + relativeTarget),0); else let to |
| be min(relativeTarget, len). |
| ... |
| 17. Repeat, while count > 0 |
| a. Let fromKey be ToString(from). |
| b. Let toKey be ToString(to). |
| ... |
| e. If fromPresent is true, then |
| ... |
| iii. Let setStatus be Set(O, toKey, fromVal, true). |
| iv. ReturnIfAbrupt(setStatus). |
| ... |
| ---*/ |
| |
| var o = { |
| '0': true, |
| length: 43 |
| }; |
| |
| Object.defineProperty(o, '42', { |
| set: function() { |
| throw new Test262Error(); |
| } |
| }); |
| |
| assert.throws(Test262Error, function() { |
| Array.prototype.copyWithin.call(o, 42, 0); |
| }); |