// sol2 // The MIT License (MIT) // Copyright (c) 2013-2021 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