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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=777385
-->
<head>
<meta charset="utf-8">
<title>Tests for WebIDL objects as weak map keys</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript">
/** Test for Bug 777385 **/
SimpleTest.waitForExplicitFinish();
// We wait to run this until the load event because it needs to access an element.
function go() {
let live_map = new WeakMap;
let get_div_style = function () {
return document.getElementById("mydivname").style;
}
let make_live_map = function () {
let my_div_style = get_div_style();
let div_fail = false;
try {
live_map.set(my_div_style, 12345);
} catch (e) {
div_fail = true;
}
ok(!div_fail, "Using elem.style as a weak map key should not produce an exception.");
is(live_map.get(get_div_style()), 12345, "Live map should have live style with right value before GC.");
}
make_live_map();
let tf = new TestFunctions;
let add_non_isupports2 = function () {
let testKey = tf.wrapperCachedNonISupportsObject;
let testFail = false;
try {
live_map.set(testKey, 23456);
} catch (e) {
testFail = true;
}
ok(!testFail, "Using a wrapper cached non-nsISupports class as a weak map key should not produce an exception.");
is(live_map.get(testKey), 23456, "Live map should have wrapper cached non-nsISupports class right value before GC.");
}
add_non_isupports2();
/* Set up for running precise GC/CC then check the results. */
SpecialPowers.exactGC(function () {
SpecialPowers.forceCC();
SpecialPowers.forceGC();
SpecialPowers.forceGC();
is(SpecialPowers.nondeterministicGetWeakMapKeys(live_map).length, 2,
"Live WebIDL bindings keys should not be removed from a weak map.");
is(live_map.get(get_div_style()), 12345, "Live weak map should have live style with right value after GC.");
is(live_map.get(tf.wrapperCachedNonISupportsObject), 23456,
"Live weak map should have live wrapper cached non-nsISupports class with right value after GC.");
SimpleTest.finish();
});
}
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
SpecialPowers.pushPrefEnv({set: [['dom.expose_test_interfaces', true]]},
go);
});
</script>
</head>
<div></div>
<div id="mydivname"></div>
<body>
<p id="display"></p>
</body>
</html>
|
