darling-JavaScriptCore/API/JSAPIValueWrapper.h

77 lines
2.3 KiB
C++

/*
* Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2003-2020 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#pragma once
#include "CallFrame.h"
#include "JSCJSValue.h"
#include "JSCast.h"
#include "Structure.h"
namespace JSC {
class JSAPIValueWrapper final : public JSCell {
friend JSValue jsAPIValueWrapper(JSGlobalObject*, JSValue);
public:
using Base = JSCell;
static constexpr unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
template<typename CellType, SubspaceAccess mode>
static IsoSubspace* subspaceFor(VM& vm)
{
return vm.apiValueWrapperSpace<mode>();
}
JSValue value() const { return m_value.get(); }
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(APIValueWrapperType, StructureFlags), info());
}
DECLARE_EXPORT_INFO;
static JSAPIValueWrapper* create(VM& vm, JSValue value)
{
JSAPIValueWrapper* wrapper = new (NotNull, allocateCell<JSAPIValueWrapper>(vm.heap)) JSAPIValueWrapper(vm);
wrapper->finishCreation(vm, value);
return wrapper;
}
private:
void finishCreation(VM& vm, JSValue value)
{
Base::finishCreation(vm);
m_value.set(vm, this, value);
ASSERT(!value.isCell());
}
JSAPIValueWrapper(VM& vm)
: JSCell(vm, vm.apiWrapperStructure.get())
{
}
WriteBarrier<Unknown> m_value;
};
} // namespace JSC