mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 12:19:46 +00:00
88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
/*
|
|
* Copyright (C) 2006 Maks Orlovich
|
|
* Copyright (C) 2006, 2007, 2008, 2009 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 "JSInternalFieldObjectImpl.h"
|
|
|
|
namespace JSC {
|
|
|
|
// This class is used as a base for classes such as String,
|
|
// Number, Boolean and Symbol which are wrappers for primitive types.
|
|
class JSWrapperObject : public JSInternalFieldObjectImpl<1> {
|
|
public:
|
|
using Base = JSInternalFieldObjectImpl<1>;
|
|
|
|
template<typename, SubspaceAccess>
|
|
static void subspaceFor(VM&)
|
|
{
|
|
RELEASE_ASSERT_NOT_REACHED();
|
|
}
|
|
|
|
static size_t allocationSize(Checked<size_t> inlineCapacity)
|
|
{
|
|
ASSERT_UNUSED(inlineCapacity, !inlineCapacity);
|
|
return sizeof(JSWrapperObject);
|
|
}
|
|
|
|
enum class Field : uint32_t {
|
|
WrappedValue = 0,
|
|
};
|
|
static_assert(numberOfInternalFields == 1);
|
|
|
|
JSValue internalValue() const;
|
|
void setInternalValue(VM&, JSValue);
|
|
|
|
static ptrdiff_t internalValueOffset() { return offsetOfInternalField(static_cast<unsigned>(Field::WrappedValue)); }
|
|
static ptrdiff_t internalValueCellOffset()
|
|
{
|
|
#if USE(JSVALUE64)
|
|
return internalValueOffset();
|
|
#else
|
|
return internalValueOffset() + OBJECT_OFFSETOF(EncodedValueDescriptor, asBits.payload);
|
|
#endif
|
|
}
|
|
|
|
protected:
|
|
explicit JSWrapperObject(VM&, Structure*);
|
|
|
|
JS_EXPORT_PRIVATE static void visitChildren(JSCell*, SlotVisitor&);
|
|
};
|
|
|
|
inline JSWrapperObject::JSWrapperObject(VM& vm, Structure* structure)
|
|
: Base(vm, structure)
|
|
{
|
|
}
|
|
|
|
inline JSValue JSWrapperObject::internalValue() const
|
|
{
|
|
return internalField(static_cast<unsigned>(Field::WrappedValue)).get();
|
|
}
|
|
|
|
inline void JSWrapperObject::setInternalValue(VM& vm, JSValue value)
|
|
{
|
|
ASSERT(value);
|
|
ASSERT(!value.isObject());
|
|
internalField(static_cast<unsigned>(Field::WrappedValue)).set(vm, this, value);
|
|
}
|
|
|
|
} // namespace JSC
|