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
|
/*
* Copyright (C) 2021 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.
*
*/
#pragma once
#include "DOMConstructors.h"
#include "JSDOMGlobalObject.h"
#include <JavaScriptCore/JSObjectInlines.h>
namespace WebCore {
inline JSDOMStructureMap& JSDOMGlobalObject::structures(NoLockingNecessaryTag)
{
ASSERT(!vm().heap.mutatorShouldBeFenced());
return m_structures;
}
inline DOMGuardedObjectSet& JSDOMGlobalObject::guardedObjects(NoLockingNecessaryTag)
{
ASSERT(!vm().heap.mutatorShouldBeFenced());
return m_guardedObjects;
}
template<class ConstructorClass, DOMConstructorID constructorID>
inline JSC::JSObject* getDOMConstructor(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
{
// No locking is necessary unless we need to add a new constructor to JSDOMGlobalObject::constructors().
if (JSC::JSObject* constructor = globalObject.constructors().array()[static_cast<unsigned>(constructorID)].get())
return constructor;
JSC::JSObject* constructor = ConstructorClass::create(vm, ConstructorClass::createStructure(vm, const_cast<JSDOMGlobalObject&>(globalObject), ConstructorClass::prototypeForStructure(vm, globalObject)), const_cast<JSDOMGlobalObject&>(globalObject));
ASSERT(!globalObject.constructors().array()[static_cast<unsigned>(constructorID)].get());
JSDOMGlobalObject& mutableGlobalObject = const_cast<JSDOMGlobalObject&>(globalObject);
mutableGlobalObject.constructors().array()[static_cast<unsigned>(constructorID)].set(vm, &globalObject, constructor);
return constructor;
}
template<class JSClass>
JSClass* toJSDOMGlobalObject(JSC::VM&, JSC::JSValue value)
{
static_assert(std::is_base_of_v<JSDOMGlobalObject, JSClass>);
if (auto* object = value.getObject()) {
if (object->type() == JSC::GlobalProxyType)
return JSC::jsDynamicCast<JSClass*>(JSC::jsCast<JSC::JSGlobalProxy*>(object)->target());
if (object->inherits<JSClass>())
return JSC::jsCast<JSClass*>(object);
}
return nullptr;
}
} // namespace WebCore
|
