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
|
function intLength (a, l) {
var res = 0;
for (var i = 0; i < l; i++)
res += a.length;
return res / l;
}
function valueLength (a, l) {
var res = 0;
for (var i = 0; i < l; i++)
res += a.length;
return res / l;
}
var denseArray = [0,1,2,3,4,5,6,7,8,9];
var typedArray = new Uint8Array(10);
var hugeArray = new Array(4294967295);
var fakeArray1 = { length: 10 };
var fakeArray2 = { length: 10.5 };
// Check the interpreter result and play with TI type objects.
assertEq(intLength(denseArray, 10), 10);
assertEq(intLength(typedArray, 10), 10);
// assertEq(intLength(fakeArray1, 10), 10);
assertEq(valueLength(denseArray, 10), 10);
assertEq(valueLength(typedArray, 10), 10);
assertEq(valueLength(hugeArray , 10), 4294967295);
assertEq(valueLength(fakeArray2, 10), 10.5);
// Heat up to compile (either JM / Ion)
assertEq(intLength(denseArray, 100), 10);
assertEq(valueLength(denseArray, 100), 10);
// No bailout should occur during any of the following checks:
// Check get-property length IC with dense array.
assertEq(intLength(denseArray, 1), 10);
assertEq(valueLength(denseArray, 1), 10);
// Check get-property length IC with typed array.
assertEq(intLength(typedArray, 1), 10);
assertEq(valueLength(typedArray, 1), 10);
// Check length which do not fit on non-double value.
assertEq(valueLength(hugeArray, 1), 4294967295);
// Check object length property.
assertEq(intLength(fakeArray1, 1), 10);
assertEq(valueLength(fakeArray2, 1), 10.5);
// Cause invalidation of intLength by returning a double.
assertEq(intLength(hugeArray, 1), 4294967295);
assertEq(intLength(fakeArray2, 1), 10.5);
|