Repository navigation
Expand file tree
/
Copy pathJSWeakPrivate.cpp
More file actions
71 lines (61 loc) · 2.25 KB
/
Copy pathJSWeakPrivate.cpp
File metadata and controls
71 lines (61 loc) · 2.25 KB
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
/*
* Copyright (C) 2017-2022 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "JSWeakPrivate.h"
#include "APICast.h"
#include "IntegrityInlines.h"
#include "JSCellInlines.h"
#include "Weak.h"
#include <wtf/ThreadSafeRefCounted.h>
using namespace JSC;
struct OpaqueJSWeak : ThreadSafeRefCounted<OpaqueJSWeak> {
OpaqueJSWeak(JSObject* object)
: weak(object)
{
}
Weak<JSObject> weak;
};
JSWeakRef JSWeakCreate(JSContextGroupRef contextGroup, JSObjectRef objectRef)
{
VM* vm = toJS(contextGroup);
JSLockHolder locker(vm);
return new OpaqueJSWeak(toJS(objectRef));
}
void JSWeakRetain(JSContextGroupRef contextGroup, JSWeakRef weakRef)
{
VM* vm = toJS(contextGroup);
JSLockHolder locker(vm);
weakRef->ref();
}
void JSWeakRelease(JSContextGroupRef contextGroup, JSWeakRef weakRef)
{
VM* vm = toJS(contextGroup);
JSLockHolder locker(vm);
weakRef->deref();
}
JSObjectRef JSWeakGetObject(JSWeakRef weakRef)
{
return toRef(weakRef->weak.get());
}