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-rw-r--r--3rdparty/sol2/sol/tie.hpp101
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-// The MIT License (MIT)
-
-// Copyright (c) 2013-2016 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_TIE_HPP
-#define SOL_TIE_HPP
-
-#include "traits.hpp"
-
-namespace sol {
-
- namespace detail {
- template <typename T>
- struct is_speshul : std::false_type {};
- }
-
- template <typename T>
- struct tie_size : std::tuple_size<T> {};
-
- template <typename T>
- struct is_tieable : std::integral_constant<bool, (::sol::tie_size<T>::value > 0)> {};
-
- template <typename... Tn>
- struct tie_t : public std::tuple<std::add_lvalue_reference_t<Tn>...> {
- private:
- typedef std::tuple<std::add_lvalue_reference_t<Tn>...> base_t;
-
- template <typename T>
- void set(std::false_type, T&& target) {
- std::get<0>(*this) = std::forward<T>(target);
- }
-
- template <typename T>
- void set(std::true_type, T&& target) {
- typedef tie_size<meta::unqualified_t<T>> value_size;
- typedef tie_size<std::tuple<Tn...>> tie_size;
- typedef std::conditional_t<(value_size::value < tie_size::value), value_size, tie_size> indices_size;
- typedef std::make_index_sequence<indices_size::value> indices;
- set_extra(detail::is_speshul<meta::unqualified_t<T>>(), indices(), std::forward<T>(target));
- }
-
- template <std::size_t... I, typename T>
- void set_extra(std::true_type, std::index_sequence<I...>, T&& target) {
- using std::get;
- (void)detail::swallow{ 0,
- (get<I>(static_cast<base_t&>(*this)) = get<I>(types<Tn...>(), target), 0)...
- , 0 };
- }
-
- template <std::size_t... I, typename T>
- void set_extra(std::false_type, std::index_sequence<I...>, T&& target) {
- using std::get;
- (void)detail::swallow{ 0,
- (get<I>(static_cast<base_t&>(*this)) = get<I>(target), 0)...
- , 0 };
- }
-
- public:
- using base_t::base_t;
-
- template <typename T>
- tie_t& operator= (T&& value) {
- typedef is_tieable<meta::unqualified_t<T>> tieable;
- set(tieable(), std::forward<T>(value));
- return *this;
- }
-
- };
-
- template <typename... Tn>
- struct tie_size< tie_t<Tn...> > : std::tuple_size< std::tuple<Tn...> > { };
-
- namespace adl_barrier_detail {
- template <typename... Tn>
- inline tie_t<std::remove_reference_t<Tn>...> tie(Tn&&... argn) {
- return tie_t<std::remove_reference_t<Tn>...>(std::forward<Tn>(argn)...);
- }
- }
-
- using namespace adl_barrier_detail;
-
-} // sol
-
-#endif // SOL_TIE_HPP