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/*
* Copyright (C) 2013 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.
*/
#ifndef JSSet_h
#define JSSet_h
#include "JSDestructibleObject.h"
#include "JSObject.h"
#include "MapData.h"
namespace JSC {
class JSSetIterator;
class JSSet : public JSDestructibleObject {
public:
typedef JSDestructibleObject Base;
friend class JSSetIterator;
// Our marking functions expect Entry to maintain this layout, and have all
// fields be WriteBarrier<Unknown>
class Entry {
private:
WriteBarrier<Unknown> m_key;
public:
const WriteBarrier<Unknown>& key() const
{
return m_key;
}
const WriteBarrier<Unknown>& value() const
{
return m_key;
}
void visitChildren(SlotVisitor& visitor)
{
visitor.append(&m_key);
}
void setKey(VM& vm, const JSCell* owner, JSValue key)
{
m_key.set(vm, owner, key);
}
void setKeyWithoutWriteBarrier(JSValue key)
{
m_key.setWithoutWriteBarrier(key);
}
void setValue(VM&, const JSCell*, JSValue)
{
}
void clear()
{
m_key.clear();
}
};
typedef MapDataImpl<Entry, JSSetIterator> SetData;
DECLARE_EXPORT_INFO;
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
static JSSet* create(VM& vm, Structure* structure)
{
JSSet* instance = new (NotNull, allocateCell<JSSet>(vm.heap)) JSSet(vm, structure);
instance->finishCreation(vm);
return instance;
}
static JSSet* create(ExecState* exec, Structure* structure)
{
return create(exec->vm(), structure);
}
bool has(ExecState*, JSValue);
size_t size(ExecState*);
JS_EXPORT_PRIVATE void add(ExecState*, JSValue);
void clear(ExecState*);
bool remove(ExecState*, JSValue);
private:
JSSet(VM& vm, Structure* structure)
: Base(vm, structure)
, m_setData(vm, this)
{
}
static void destroy(JSCell*);
static size_t estimatedSize(JSCell*);
static void visitChildren(JSCell*, SlotVisitor&);
static void copyBackingStore(JSCell*, CopyVisitor&, CopyToken);
SetData m_setData;
};
}
#endif // !defined(JSSet_h)
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