ladybird/AK/ScopedValueRollback.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

40 lines
608 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
namespace AK {
template<typename T>
class ScopedValueRollback {
public:
ScopedValueRollback(T& variable)
: m_variable(variable)
, m_saved_value(variable)
{
}
~ScopedValueRollback()
{
m_variable = m_saved_value;
}
void set_override_rollback_value(const T& value)
{
m_saved_value = value;
}
private:
T& m_variable;
T m_saved_value;
};
}
#if USING_AK_GLOBALLY
using AK::ScopedValueRollback;
#endif