darling-JavaScriptCore/runtime/JSWeakMap.h
2017-08-12 09:48:01 -07:00

80 lines
2.6 KiB
C++

/*
* 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.
*/
#pragma once
#include "JSObject.h"
namespace JSC {
class WeakMapData;
class JSWeakMap : public JSNonFinalObject {
public:
typedef JSNonFinalObject Base;
DECLARE_EXPORT_INFO;
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
static JSWeakMap* create(VM& vm, Structure* structure)
{
JSWeakMap* instance = new (NotNull, allocateCell<JSWeakMap>(vm.heap)) JSWeakMap(vm, structure);
instance->finishCreation(vm);
return instance;
}
static JSWeakMap* create(ExecState* exec, Structure* structure)
{
return create(exec->vm(), structure);
}
WeakMapData* weakMapData() { return m_weakMapData.get(); }
JSValue get(CallFrame*, JSObject*);
bool has(CallFrame*, JSObject*);
bool remove(CallFrame*, JSObject*);
void set(CallFrame*, JSObject*, JSValue);
void clear(CallFrame*);
private:
JSWeakMap(VM& vm, Structure* structure)
: Base(vm, structure)
{
}
void finishCreation(VM&);
static void visitChildren(JSCell*, SlotVisitor&);
static String toStringName(const JSObject*, ExecState*);
WriteBarrier<WeakMapData> m_weakMapData;
};
} // namespace JSC