ladybird/Libraries/LibJS/Runtime/WeakRef.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

43 lines
1 KiB
C++

/*
* Copyright (c) 2021-2022, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGC/WeakContainer.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Object.h>
namespace JS {
class WeakRef final
: public Object
, public GC::WeakContainer {
JS_OBJECT(WeakRef, Object);
GC_DECLARE_ALLOCATOR(WeakRef);
public:
static GC::Ref<WeakRef> create(Realm&, Object&);
static GC::Ref<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<GC::Heap>) override;
private:
explicit WeakRef(Object&, Object& prototype);
explicit WeakRef(Symbol&, Object& prototype);
virtual void visit_edges(Visitor&) override;
Variant<GC::Ptr<Object>, GC::Ptr<Symbol>, Empty> m_value;
u32 m_last_execution_generation { 0 };
};
}