dolphin/Source/Core/Common/Config/ConfigInfo.h

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// Copyright 2017 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <string>
#include <type_traits>
#include "Common/Config/Enums.h"
namespace Config
{
namespace detail
{
// std::underlying_type may only be used with enum types, so make sure T is an enum type first.
template <typename T>
using UnderlyingType = typename std::enable_if_t<std::is_enum<T>{}, std::underlying_type<T>>::type;
} // namespace detail
struct ConfigLocation
{
System system;
std::string section;
std::string key;
bool operator==(const ConfigLocation& other) const;
bool operator!=(const ConfigLocation& other) const;
bool operator<(const ConfigLocation& other) const;
};
template <typename T>
struct ConfigInfo
{
ConfigInfo(const ConfigLocation& location_, const T& default_value_)
: location{location_}, default_value{default_value_}
{
}
// Make it easy to convert ConfigInfo<Enum> into ConfigInfo<UnderlyingType<Enum>>
// so that enum settings can still easily work with code that doesn't care about the enum values.
template <typename Enum,
std::enable_if_t<std::is_same<T, detail::UnderlyingType<Enum>>::value>* = nullptr>
ConfigInfo(const ConfigInfo<Enum>& other)
: location{other.location}, default_value{static_cast<detail::UnderlyingType<Enum>>(
other.default_value)}
{
}
ConfigLocation location;
T default_value;
};
} // namespace Config