#pragma once
#include "AuxiliaryBarrier.h"
#include <wtf/CagedPtr.h>
namespace JSC {
class JSCell;
class VM;
template<Gigacage::Kind passedKind, typename T, bool shouldTag = false>
class CagedBarrierPtr {
public:
static constexpr Gigacage::Kind kind = passedKind;
using Type = T;
using CagedType = CagedPtr<kind, Type, shouldTag>;
CagedBarrierPtr() = default;
template<typename U>
CagedBarrierPtr(VM& vm, JSCell* cell, U&& value, unsigned size)
{
m_barrier.set(vm, cell, CagedType(std::forward<U>(value), size));
}
void clear() { m_barrier.clear(); }
template<typename U>
void set(VM& vm, JSCell* cell, U&& value, unsigned size)
{
m_barrier.set(vm, cell, CagedType(std::forward<U>(value), size));
}
T* get(unsigned size) const { return m_barrier.get().get(size); }
T* getMayBeNull(unsigned size) const { return m_barrier.get().getMayBeNull(size); }
T* getUnsafe() const { return m_barrier.get().getUnsafe(); }
template<typename U = T>
typename std::enable_if<!std::is_same<void, U>::value, T>::type&
at(unsigned index, unsigned size) const { return get(size)[index]; }
bool operator==(const CagedBarrierPtr& other) const
{
return m_barrier.get() == other.m_barrier.get();
}
bool operator!=(const CagedBarrierPtr& other) const
{
return !(*this == other);
}
explicit operator bool() const
{
return !!m_barrier.get();
}
template<typename U>
void setWithoutBarrier(U&& value, unsigned size) { m_barrier.setWithoutBarrier(CagedType(std::forward<U>(value), size)); }
T* rawBits() const
{
return m_barrier.get().rawBits();
}
private:
AuxiliaryBarrier<CagedType> m_barrier;
};
}