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// 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 deleting property value on DeletePropertyOrThrow(O, toKey).
info: |
22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
...
17. Repeat, while count > 0
a. Let fromKey be ToString(from).
b. Let toKey be ToString(to).
c. Let fromPresent be HasProperty(O, fromKey).
...
f. Else fromPresent is false,
i. Let deleteStatus be DeletePropertyOrThrow(O, toKey).
ii. ReturnIfAbrupt(deleteStatus).
...
---*/
var o = {
length: 43
};
Object.defineProperty(o, '42', {
configurable: false,
writable: true
});
assert.throws(TypeError, function() {
Array.prototype.copyWithin.call(o, 42, 0);
});
reportCompare(0, 0);
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