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
|
// ToNumber(value) is executed for OOB writes when using a direct assignment.
function plainSet() {
var callCount = 0;
var value = {
valueOf() {
callCount++;
return 1;
}
};
var N = 100;
var ta = new Int32Array(0);
for (var i = 0; i < N; ++i)
ta[0] = value
assertEq(callCount, N);
}
for (var i = 0; i < 2; ++i) plainSet();
// ToNumber(value) is executed for OOB writes when using Reflect.set(...).
function reflectSet() {
var callCount = 0;
var value = {
valueOf() {
callCount++;
return 1;
}
};
var N = 100;
var ta = new Int32Array(0);
for (var i = 0; i < N; ++i)
assertEq(Reflect.set(ta, 0, value), true);
assertEq(callCount, N);
}
for (var i = 0; i < 2; ++i) reflectSet();
// ToNumber(value) is not executed for OOB writes when using Reflect.defineProperty(...).
function defineProp() {
var callCount = 0;
var value = {
valueOf() {
callCount++;
return 1;
}
};
var desc = {value, writable: true, enumerable: true, configurable: true};
var N = 100;
var ta = new Int32Array(0);
for (var i = 0; i < N; ++i)
assertEq(Reflect.defineProperty(ta, 0, desc), false);
assertEq(callCount, 0);
}
for (var i = 0; i < 2; ++i) defineProp();
if (typeof reportCompare === "function")
reportCompare(true, true);
|