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/*
* Copyright (c) 2021-2022, 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 NonnullGCPtr<WeakRef> create(Realm&, Object&);
static NonnullGCPtr<WeakRef> create(Realm&, Symbol&);
virtual ~WeakRef() override = default;
auto const& 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:
explicit WeakRef(Object&, Object& prototype);
explicit WeakRef(Symbol&, Object& prototype);
virtual void visit_edges(Visitor&) override;
Variant<Object*, Symbol*, Empty> m_value;
u32 m_last_execution_generation { 0 };
};
}
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