1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// 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 true after setting a valid numeric index key
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
If ! IsValidIntegerIndex(O, numericIndex) is false, return false.
If IsAccessorDescriptor(Desc) is true, return false.
If Desc has a [[Configurable]] field and if Desc.[[Configurable]] is false, return false.
If Desc has an [[Enumerable]] field and if Desc.[[Enumerable]] is false, return false.
If Desc has a [[Writable]] field and if Desc.[[Writable]] is false, return false.
If Desc has a [[Value]] field, then
Let value be Desc.[[Value]].
Return ? IntegerIndexedElementSet(O, numericIndex, value).
includes: [testTypedArray.js]
features: [Reflect, TypedArray]
---*/
testWithTypedArrayConstructors(function(TA) {
var sample = new TA([42, 42]);
assert.sameValue(
Reflect.defineProperty(sample, "0", {
value: 8,
configurable: true,
enumerable: true,
writable: true
}),
true
);
assert.sameValue(sample[0], 8, "property value was set");
let descriptor0 = Object.getOwnPropertyDescriptor(sample, "0");
assert.sameValue(descriptor0.value, 8);
assert.sameValue(descriptor0.configurable, true);
assert.sameValue(descriptor0.enumerable, true);
assert.sameValue(descriptor0.writable, true);
});
reportCompare(0, 0);
|
