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#pragma once
#include "access.h"
namespace NYT::NGlobal {
////////////////////////////////////////////////////////////////////////////////
namespace NDetail {
// Defined in impl.cpp.
void RegisterVariable(const TVariableTag& tag, TAccessor accessor);
} // namespace NDetail
////////////////////////////////////////////////////////////////////////////////
template <CTriviallyErasable<GlobalVariableMaxByteSize> T>
class TVariable
{
public:
TVariable(
const TVariableTag& tag,
TAccessor accessor,
T initValue = {}) noexcept;
TVariable(const TVariable& other) = delete;
TVariable& operator=(const TVariable& other) = delete;
T Get() const noexcept;
void Set(T value) noexcept;
private:
// NB(arkady-e1ppa): Ban TVariable<TVariable<T>>.
static_assert(!requires (T t) {
[] <class U> (TVariable<U>&) { } (t);
});
T Value_;
};
////////////////////////////////////////////////////////////////////////////////
#define YT_DEFINE_TRACKED_GLOBAL(Type, Name, Tag, InitExpr)
#define YT_DEFINE_TRACKED_THREAD_LOCAL(Type, Name, Tag, ...)
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT::NGlobal
#define GLOBAL_VARIABLE_INL_H_
#include "variable-inl.h"
#undef GLOBAL_VARIABLE_INL_H_
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