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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Check HeapSnapshot.prototype.takeCensus handling of 'breakdown' argument.
//
// Ported from js/src/jit-test/tests/debug/Memory-takeCensus-06.js
function run_test() {
const Pattern = Match.Pattern;
const g = newGlobal();
const dbg = new Debugger(g);
Pattern({ count: Pattern.NATURAL, bytes: Pattern.NATURAL }).assert(
saveHeapSnapshotAndTakeCensus(dbg, { breakdown: { by: "count" } })
);
let census = saveHeapSnapshotAndTakeCensus(dbg, {
breakdown: { by: "count", count: false, bytes: false },
});
equal("count" in census, false);
equal("bytes" in census, false);
census = saveHeapSnapshotAndTakeCensus(dbg, {
breakdown: { by: "count", count: true, bytes: false },
});
equal("count" in census, true);
equal("bytes" in census, false);
census = saveHeapSnapshotAndTakeCensus(dbg, {
breakdown: { by: "count", count: false, bytes: true },
});
equal("count" in census, false);
equal("bytes" in census, true);
census = saveHeapSnapshotAndTakeCensus(dbg, {
breakdown: { by: "count", count: true, bytes: true },
});
equal("count" in census, true);
equal("bytes" in census, true);
// Pattern doesn't mind objects with extra properties, so we'll restrict this
// list to the object classes we're pretty sure are going to stick around for
// the forseeable future.
Pattern({
Function: { count: Pattern.NATURAL },
Object: { count: Pattern.NATURAL },
DebuggerPrototype: { count: Pattern.NATURAL },
Sandbox: { count: Pattern.NATURAL },
}).assert(
saveHeapSnapshotAndTakeCensus(dbg, { breakdown: { by: "objectClass" } })
);
Pattern({
objects: { count: Pattern.NATURAL },
scripts: { count: Pattern.NATURAL },
strings: { count: Pattern.NATURAL },
other: { count: Pattern.NATURAL },
}).assert(
saveHeapSnapshotAndTakeCensus(dbg, { breakdown: { by: "coarseType" } })
);
// As for { by: 'objectClass' }, restrict our pattern to the types
// we predict will stick around for a long time.
Pattern({
JSString: { count: Pattern.NATURAL },
"js::Shape": { count: Pattern.NATURAL },
JSObject: { count: Pattern.NATURAL },
}).assert(
saveHeapSnapshotAndTakeCensus(dbg, { breakdown: { by: "internalType" } })
);
// Nested breakdowns.
const coarseTypePattern = {
objects: { count: Pattern.NATURAL },
scripts: { count: Pattern.NATURAL },
strings: { count: Pattern.NATURAL },
other: { count: Pattern.NATURAL },
};
Pattern({
JSString: coarseTypePattern,
"js::Shape": coarseTypePattern,
JSObject: coarseTypePattern,
}).assert(
saveHeapSnapshotAndTakeCensus(dbg, {
breakdown: { by: "internalType", then: { by: "coarseType" } },
})
);
Pattern({
Function: { count: Pattern.NATURAL },
Object: { count: Pattern.NATURAL },
DebuggerPrototype: { count: Pattern.NATURAL },
Sandbox: { count: Pattern.NATURAL },
other: coarseTypePattern,
}).assert(
saveHeapSnapshotAndTakeCensus(dbg, {
breakdown: {
by: "objectClass",
then: { by: "count" },
other: { by: "coarseType" },
},
})
);
Pattern({
objects: { count: Pattern.NATURAL, label: "object" },
scripts: { count: Pattern.NATURAL, label: "scripts" },
strings: { count: Pattern.NATURAL, label: "strings" },
other: { count: Pattern.NATURAL, label: "other" },
}).assert(
saveHeapSnapshotAndTakeCensus(dbg, {
breakdown: {
by: "coarseType",
objects: { by: "count", label: "object" },
scripts: { by: "count", label: "scripts" },
strings: { by: "count", label: "strings" },
other: { by: "count", label: "other" },
},
})
);
do_test_finished();
}
|
