mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
/*
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* Copyright (C) 2006 Maks Orlovich
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* Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "JSInternalFieldObjectImpl.h"
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namespace JSC {
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// This class is used as a base for classes such as String,
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// Number, Boolean and Symbol which are wrappers for primitive types.
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class JSWrapperObject : public JSInternalFieldObjectImpl<1> {
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public:
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using Base = JSInternalFieldObjectImpl<1>;
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template<typename, SubspaceAccess>
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static void subspaceFor(VM&)
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{
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RELEASE_ASSERT_NOT_REACHED();
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}
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static size_t allocationSize(Checked<size_t> inlineCapacity)
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{
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ASSERT_UNUSED(inlineCapacity, !inlineCapacity);
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return sizeof(JSWrapperObject);
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}
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enum class Field : uint32_t {
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WrappedValue = 0,
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};
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static_assert(numberOfInternalFields == 1);
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JSValue internalValue() const;
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void setInternalValue(VM&, JSValue);
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static ptrdiff_t internalValueOffset() { return offsetOfInternalField(static_cast<unsigned>(Field::WrappedValue)); }
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static ptrdiff_t internalValueCellOffset()
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{
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#if USE(JSVALUE64)
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return internalValueOffset();
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#else
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return internalValueOffset() + OBJECT_OFFSETOF(EncodedValueDescriptor, asBits.payload);
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#endif
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}
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protected:
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explicit JSWrapperObject(VM&, Structure*);
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JS_EXPORT_PRIVATE static void visitChildren(JSCell*, SlotVisitor&);
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};
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inline JSWrapperObject::JSWrapperObject(VM& vm, Structure* structure)
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: Base(vm, structure)
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{
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}
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inline JSValue JSWrapperObject::internalValue() const
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{
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return internalField(static_cast<unsigned>(Field::WrappedValue)).get();
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}
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inline void JSWrapperObject::setInternalValue(VM& vm, JSValue value)
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{
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ASSERT(value);
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ASSERT(!value.isObject());
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internalField(static_cast<unsigned>(Field::WrappedValue)).set(vm, this, value);
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}
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} // namespace JSC
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