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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// 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-typedarray-buffer-byteoffset-length
description: >
ToIndex(length) operations
info: |
22.2.4.5 TypedArray ( buffer [ , byteOffset [ , length ] ] )
This description applies only if the TypedArray function is called with at
least one argument and the Type of the first argument is Object and that
object has an [[ArrayBufferData]] internal slot.
...
11. If length is either not present or undefined, then
...
12. Else,
a. Let newLength be ? ToIndex(length).
...
includes: [testBigIntTypedArray.js]
features: [BigInt, TypedArray]
---*/
var buffer = new ArrayBuffer(16);
var obj1 = {
valueOf: function() {
return 1;
}
};
var obj2 = {
toString: function() {
return 1;
}
};
var items = [
[-0, 0, "-0"],
[obj1, 1, "object's valueOf"],
[obj2, 1, "object's toString"],
["", 0, "the Empty string"],
["0", 0, "string '0'"],
["1", 1, "string '1'"],
[false, 0, "false"],
[true, 1, "true"],
[NaN, 0, "NaN"],
[null, 0, "null"],
[0.1, 0, "0.1"],
[0.9, 0, "0.9"],
[1.1, 1, "1.1"],
[1.9, 1, "1.9"],
[-0.1, 0, "-0.1"],
[-0.99999, 0, "-0.99999"]
];
testWithBigIntTypedArrayConstructors(function(TA) {
items.forEach(function(item) {
var len = item[0];
var expected = item[1];
var name = item[2];
var typedArray = new TA(buffer, 0, len);
assert.sameValue(typedArray.length, expected, name + " length");
assert.sameValue(typedArray.constructor, TA, name + " constructor");
assert.sameValue(
Object.getPrototypeOf(typedArray),
TA.prototype,
name + " prototype"
);
});
});
|
