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// Copyright 2015 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <optional>
namespace Common
{
template <typename Callable>
class ScopeGuard final
{
public:
ScopeGuard(Callable&& finalizer) : m_finalizer(std::forward<Callable>(finalizer)) {}
ScopeGuard(ScopeGuard&& other) : m_finalizer(std::move(other.m_finalizer)) { other.Dismiss(); }
~ScopeGuard() { Exit(); }
void Dismiss() { m_finalizer.reset(); }
void Exit()
{
if (m_finalizer)
{
(*m_finalizer)(); // must not throw
m_finalizer.reset();
}
}
ScopeGuard(const ScopeGuard&) = delete;
void operator=(const ScopeGuard&) = delete;
private:
std::optional<Callable> m_finalizer;
};
} // Namespace Common
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