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/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/WeakContainer.h>
namespace JS {
class WeakRef final
: public Object
, public WeakContainer {
JS_OBJECT(WeakRef, Object);
public:
static WeakRef* create(GlobalObject&, Object*);
explicit WeakRef(Object*, Object& prototype);
virtual ~WeakRef() override;
Object* value() const { return m_value; };
void update_execution_generation() { m_last_execution_generation = vm().execution_generation(); };
virtual void remove_dead_cells(Badge<Heap>) override;
private:
virtual void visit_edges(Visitor&) override;
#ifdef JS_TRACK_ZOMBIE_CELLS
virtual void did_become_zombie() override
{
deregister();
}
#endif
Object* m_value { nullptr };
u32 m_last_execution_generation { 0 };
};
}
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