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
|
function sortTypedArray(comparator) {
// Create a typed array with three elements, but also add an own "length"
// property with the value `2` to restrict the range of elements which
// will be sorted by Array.prototype.sort().
var ta = new Int8Array([3, 2, 1]);
Object.defineProperty(ta, "length", {value: 2});
// Sort with Array.prototype.sort(), not %TypedArray%.prototype.sort()!
Array.prototype.sort.call(ta, comparator);
return ta;
}
// Comparators using the form |return a - b| are special-cased in
// Array.prototype.sort().
function optimizedComparator(a, b) {
return a - b;
}
// This comparator doesn't compile to the byte code sequence which gets
// special-cased in Array.prototype.sort().
function nonOptimizedComparator(a, b) {
var d = a - b;
return d;
}
// Both comparators should produce the same result.
assertEq(sortTypedArray(optimizedComparator).toString(), "2,3,1");
assertEq(sortTypedArray(nonOptimizedComparator).toString(), "2,3,1");
if (typeof reportCompare === 'function')
reportCompare(0, 0);
|
