sol2/include/sol/tuple.hpp

90 lines
2.9 KiB
C++

// sol3
// The MIT License (MIT)
// Copyright (c) 2013-2019 Rapptz, ThePhD and contributors
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SOL_TUPLE_HPP
#define SOL_TUPLE_HPP
#include <sol/forward.hpp>
#include <sol/base_traits.hpp>
#include <tuple>
#include <cstddef>
namespace sol {
namespace detail {
using swallow = std::initializer_list<int>;
} // namespace detail
namespace meta {
template <typename T>
using is_tuple = is_specialization_of<T, std::tuple>;
template <typename T>
constexpr inline bool is_tuple_v = is_tuple<T>::value;
namespace detail {
template <typename... Args>
struct tuple_types_ { typedef types<Args...> type; };
template <typename... Args>
struct tuple_types_<std::tuple<Args...>> { typedef types<Args...> type; };
} // namespace detail
template <typename... Args>
using tuple_types = typename detail::tuple_types_<Args...>::type;
template <typename Arg>
struct pop_front_type;
template <typename Arg>
using pop_front_type_t = typename pop_front_type<Arg>::type;
template <typename... Args>
struct pop_front_type<types<Args...>> {
typedef void front_type;
typedef types<Args...> type;
};
template <typename Arg, typename... Args>
struct pop_front_type<types<Arg, Args...>> {
typedef Arg front_type;
typedef types<Args...> type;
};
template <std::size_t N, typename Tuple>
using tuple_element = std::tuple_element<N, std::remove_reference_t<Tuple>>;
template <std::size_t N, typename Tuple>
using tuple_element_t = std::tuple_element_t<N, std::remove_reference_t<Tuple>>;
template <std::size_t N, typename Tuple>
using unqualified_tuple_element = unqualified<tuple_element_t<N, Tuple>>;
template <std::size_t N, typename Tuple>
using unqualified_tuple_element_t = unqualified_t<tuple_element_t<N, Tuple>>;
} // namespace meta
} // namespace sol
#endif // SOL_TUPLE_HPP