blob: 7a3b61d21308e865769fa40faff97e04eac09cc5 (
plain)
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
|
function build_getter(i) {
var x = [i];
return function f() { return x; }
}
function test()
{
var N = internalConst("INCREMENTAL_MARK_STACK_BASE_CAPACITY") + 2;
var o = {};
var descriptor = { enumerable: true};
for (var i = 0; i != N; ++i) {
descriptor.get = build_getter(i);
Object.defineProperty(o, i, descriptor);
}
// At this point we have an object o with N getters. Each getter in turn
// is a closure storing an array. During the GC we push to the object
// marking stack all the getters found in an object after we mark it. As N
// exceeds the size of the object marking stack, this requires to run the
// dealyed scanning for some closures to mark the array objects stored in
// them.
//
// We run the GC twice to make sure that the background finalization
// finishes before we access the objects.
gc();
gc();
for (var i = 0; i != N; ++i)
assertEq(o[i][0], i);
}
test();
|