mirror of
https://github.com/DarkMatterCore/nxdumptool.git
synced 2024-10-30 07:21:46 +00:00
56 lines
2 KiB
C++
56 lines
2 KiB
C++
|
/*
|
||
|
* is_base_of_template.hpp
|
||
|
*
|
||
|
* Copyright (c) 2020-2024, DarkMatterCore <pabloacurielz@gmail.com>.
|
||
|
*
|
||
|
* Based on goneskiing's C++ implementation at:
|
||
|
* https://stackoverflow.com/a/63562826
|
||
|
*
|
||
|
* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
|
||
|
*
|
||
|
* nxdumptool is free software: you can redistribute it and/or modify
|
||
|
* it under the terms of the GNU General Public License as published by
|
||
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
* (at your option) any later version.
|
||
|
*
|
||
|
* nxdumptool is distributed in the hope that it will be useful,
|
||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
* GNU General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU General Public License
|
||
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||
|
*/
|
||
|
|
||
|
#pragma once
|
||
|
|
||
|
#ifndef __IS_BASE_OF_TEMPLATE_HPP__
|
||
|
#define __IS_BASE_OF_TEMPLATE_HPP__
|
||
|
|
||
|
#include <variant>
|
||
|
#include <experimental/type_traits>
|
||
|
|
||
|
namespace nxdt::utils
|
||
|
{
|
||
|
/* Can be used as part of static asserts to check if any given class was derived from a base template class. */
|
||
|
template <template <typename...> class Base, typename Derived>
|
||
|
struct is_base_of_template
|
||
|
{
|
||
|
template <typename... Ts> static constexpr std::variant<Ts...> is_callable(Base<Ts...>*);
|
||
|
|
||
|
template <typename T> using is_callable_t = decltype(is_callable(std::declval<T*>()));
|
||
|
|
||
|
static inline constexpr bool value = std::experimental::is_detected_v<is_callable_t, Derived>;
|
||
|
|
||
|
using type = std::experimental::detected_or_t<void, is_callable_t, Derived>;
|
||
|
};
|
||
|
|
||
|
template <template <typename...> class Base, typename Derived>
|
||
|
using is_base_of_template_t = typename is_base_of_template<Base, Derived>::type;
|
||
|
|
||
|
template <template <typename...> class Base, typename Derived>
|
||
|
inline constexpr bool is_base_of_template_v = is_base_of_template<Base, Derived>::value;
|
||
|
}
|
||
|
|
||
|
#endif /* __IS_BASE_OF_TEMPLATE_HPP__ */
|