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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-integer-indexed-exotic-objects-defineownproperty-p-desc
description: >
Returns false if numericIndex is "-0"
info: |
9.4.5.3 [[DefineOwnProperty]] ( P, Desc)
...
3. If Type(P) is String, then
a. Let numericIndex be ! CanonicalNumericIndexString(P).
b. If numericIndex is not undefined, then
i. If IsInteger(numericIndex) is false, return false.
ii. Let intIndex be numericIndex.
iii. If intIndex = -0, return false.
...
includes: [testTypedArray.js]
features: [Reflect, TypedArray]
---*/
testWithTypedArrayConstructors(function(TA) {
var sample = new TA(2);
assert.sameValue(
Reflect.defineProperty(sample, "-0", {
value: 42,
configurable: false,
enumerable: true,
writable: true
}),
false,
"defineProperty returns false"
);
assert.sameValue(sample[0], 0, "does not change the value for [0]");
assert.sameValue(sample["-0"], undefined, "does define a value for ['-0']");
});
reportCompare(0, 0);
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