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
|
function test(constructor, constructor2, from=[1, 2, 3, 4, 5], to=[3, 4], begin=2, end=4) {
var modifiedConstructor = new constructor(from);
modifiedConstructor.constructor = constructor2;
assertDeepEq(modifiedConstructor.subarray(begin, end), new constructor2(to));
var modifiedSpecies = new constructor(from);
modifiedSpecies.constructor = { [Symbol.species]: constructor2 };
assertDeepEq(modifiedSpecies.subarray(begin, end), new constructor2(to));
}
// same size, same sign
test(Int8Array, Uint8Array);
test(Int8Array, Uint8ClampedArray);
test(Uint8Array, Int8Array);
test(Uint8Array, Uint8ClampedArray);
test(Uint8ClampedArray, Int8Array);
test(Uint8ClampedArray, Uint8Array);
test(Int16Array, Uint16Array);
test(Uint16Array, Int16Array);
test(Int32Array, Uint32Array);
test(Uint32Array, Int32Array);
// same size, different sign
test(Int8Array, Uint8Array, [-1, -2, -3, -4, -5], [0xFD, 0xFC]);
test(Int8Array, Uint8ClampedArray, [-1, -2, -3, -4, -5], [0xFD, 0xFC]);
test(Uint8Array, Int8Array, [0xFF, 0xFE, 0xFD, 0xFC, 0xFB], [-3, -4]);
test(Uint8ClampedArray, Int8Array, [0xFF, 0xFE, 0xFD, 0xFC, 0xFB], [-3, -4]);
test(Int16Array, Uint16Array, [-1, -2, -3, -4, -5], [0xFFFD, 0xFFFC]);
test(Uint16Array, Int16Array, [0xFFFF, 0xFFFE, 0xFFFD, 0xFFFC, 0xFFFB], [-3, -4]);
test(Int32Array, Uint32Array, [-1, -2, -3, -4, -5], [0xFFFFFFFD, 0xFFFFFFFC]);
test(Uint32Array, Int32Array, [0xFFFFFFFF, 0xFFFFFFFE, 0xFFFFFFFD, 0xFFFFFFFC, 0xFFFFFFFB], [-3, -4]);
// different size
// To avoid handling endian, use ArrayBuffer as an argument.
var a = new Int8Array([0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01,
0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88,
0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF, 0x0F]);
test(Uint8Array, Uint16Array, a.buffer, a.slice(2, 6).buffer);
test(Uint16Array, Uint8Array, a.buffer, a.slice(4, 6).buffer);
test(Uint8Array, Uint32Array, a.buffer, a.slice(4, 12).buffer, 4, 6);
test(Uint32Array, Uint8Array, a.buffer, a.slice(8, 10).buffer);
test(Uint16Array, Uint32Array, a.buffer, a.slice(4, 12).buffer);
test(Uint32Array, Uint16Array, a.buffer, a.slice(8, 12).buffer);
test(Float32Array, Float64Array, a.buffer, a.slice(8, 24).buffer);
test(Float64Array, Float32Array, a.buffer, a.slice(16, 24).buffer);
if (typeof reportCompare === "function")
reportCompare(true, true);
|
