serenity/AK/ScopeGuard.h
Andreas Kling ae3ffdd521 AK: Make it possible to not using AK classes into the global namespace
This patch adds the `USING_AK_GLOBALLY` macro which is enabled by
default, but can be overridden by build flags.

This is a step towards integrating Jakt and AK types.
2022-11-26 15:51:34 +01:00

56 lines
825 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/StdLibExtras.h>
namespace AK {
template<typename Callback>
class ScopeGuard {
public:
ScopeGuard(Callback callback)
: m_callback(move(callback))
{
}
~ScopeGuard()
{
m_callback();
}
private:
Callback m_callback;
};
template<typename Callback>
class ArmedScopeGuard {
public:
ArmedScopeGuard(Callback callback)
: m_callback(move(callback))
{
}
~ArmedScopeGuard()
{
if (m_armed)
m_callback();
}
void disarm() { m_armed = false; }
private:
Callback m_callback;
bool m_armed { true };
};
}
#if USING_AK_GLOBALLY
using AK::ArmedScopeGuard;
using AK::ScopeGuard;
#endif