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/*
* Copyright (C) 2008, 2012 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 "PlatformExportMacros.h"
#include "WebCoreJSBuiltinInternals.h"
#include <heap/LockDuringMarking.h>
#include <runtime/JSGlobalObject.h>
#include <runtime/StructureInlines.h>
namespace WebCore {
class DeferredPromise;
class Document;
class Event;
class DOMWrapperWorld;
class ScriptExecutionContext;
typedef HashMap<const JSC::ClassInfo*, JSC::WriteBarrier<JSC::Structure>> JSDOMStructureMap;
typedef HashMap<const JSC::ClassInfo*, JSC::WriteBarrier<JSC::JSObject>> JSDOMConstructorMap;
typedef HashSet<DeferredPromise*> DeferredPromiseSet;
class WEBCORE_EXPORT JSDOMGlobalObject : public JSC::JSGlobalObject {
typedef JSC::JSGlobalObject Base;
protected:
struct JSDOMGlobalObjectData;
JSDOMGlobalObject(JSC::VM&, JSC::Structure*, Ref<DOMWrapperWorld>&&, const JSC::GlobalObjectMethodTable* = 0);
static void destroy(JSC::JSCell*);
void finishCreation(JSC::VM&);
void finishCreation(JSC::VM&, JSC::JSObject*);
public:
Lock& gcLock() { return m_gcLock; }
JSDOMStructureMap& structures(const AbstractLocker&) { return m_structures; }
JSDOMConstructorMap& constructors(const AbstractLocker&) { return m_constructors; }
DeferredPromiseSet& deferredPromises(const AbstractLocker&) { return m_deferredPromises; }
ScriptExecutionContext* scriptExecutionContext() const;
// Make binding code generation easier.
JSDOMGlobalObject* globalObject() { return this; }
void setCurrentEvent(Event*);
Event* currentEvent() const;
static void visitChildren(JSC::JSCell*, JSC::SlotVisitor&);
DOMWrapperWorld& world() { return m_world.get(); }
bool worldIsNormal() const { return m_worldIsNormal; }
static ptrdiff_t offsetOfWorldIsNormal() { return OBJECT_OFFSETOF(JSDOMGlobalObject, m_worldIsNormal); }
JSBuiltinInternalFunctions& builtinInternalFunctions() { return m_builtinInternalFunctions; }
protected:
static const JSC::ClassInfo s_info;
public:
~JSDOMGlobalObject();
static constexpr const JSC::ClassInfo* info() { return &s_info; }
static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSValue prototype)
{
return JSC::Structure::create(vm, 0, prototype, JSC::TypeInfo(JSC::GlobalObjectType, StructureFlags), info());
}
protected:
JSDOMStructureMap m_structures;
JSDOMConstructorMap m_constructors;
DeferredPromiseSet m_deferredPromises;
Event* m_currentEvent;
Ref<DOMWrapperWorld> m_world;
uint8_t m_worldIsNormal;
Lock m_gcLock;
private:
void addBuiltinGlobals(JSC::VM&);
friend void JSBuiltinInternalFunctions::initialize(JSDOMGlobalObject&);
JSBuiltinInternalFunctions m_builtinInternalFunctions;
};
template<class ConstructorClass>
inline JSC::JSObject* getDOMConstructor(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
{
if (JSC::JSObject* constructor = const_cast<JSDOMGlobalObject&>(globalObject).constructors(NoLockingNecessary).get(ConstructorClass::info()).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(!const_cast<JSDOMGlobalObject&>(globalObject).constructors(NoLockingNecessary).contains(ConstructorClass::info()));
JSC::WriteBarrier<JSC::JSObject> temp;
JSDOMGlobalObject& mutableGlobalObject = const_cast<JSDOMGlobalObject&>(globalObject);
auto locker = JSC::lockDuringMarking(vm.heap, mutableGlobalObject.gcLock());
mutableGlobalObject.constructors(locker).add(ConstructorClass::info(), temp).iterator->value.set(vm, &globalObject, constructor);
return constructor;
}
JSDOMGlobalObject* toJSDOMGlobalObject(Document*, JSC::ExecState*);
JSDOMGlobalObject* toJSDOMGlobalObject(ScriptExecutionContext*, JSC::ExecState*);
JSDOMGlobalObject* toJSDOMGlobalObject(Document*, DOMWrapperWorld&);
JSDOMGlobalObject* toJSDOMGlobalObject(ScriptExecutionContext*, DOMWrapperWorld&);
} // namespace WebCore
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