mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
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88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2014 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_TUPLE_TRAITS_HPP
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#define SPROUT_TUPLE_TRAITS_HPP
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#include <sprout/config.hpp>
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#include <sprout/index_tuple/metafunction.hpp>
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#include <sprout/tuple/tuple.hpp>
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#include <sprout/tuple/indexes.hpp>
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#include <sprout/type/rebind_types.hpp>
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#include <sprout/utility/forward.hpp>
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namespace sprout {
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namespace tuples {
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//
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// rebind_types
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//
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template<typename Tuple>
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struct rebind_types
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: public sprout::types::rebind_types<Tuple>
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{};
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//
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// tuple_construct_traits
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//
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template<typename Tuple>
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struct tuple_construct_traits;
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namespace detail {
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template<typename Tuple, typename IndexTuple>
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struct default_copied;
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template<typename Tuple, sprout::index_t... Indexes>
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struct default_copied<Tuple, sprout::index_tuple<Indexes...> >
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: public sprout::tuples::rebind_types<Tuple>::template apply<
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typename std::decay<
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typename sprout::tuples::tuple_element<Indexes, Tuple>::type
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>::type...
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>
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{};
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template<typename Tuple, typename... Args>
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SPROUT_CONSTEXPR typename sprout::tuples::tuple_construct_traits<Tuple>::copied_type
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default_make_tuple(Args&&... args) {
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typedef typename sprout::tuples::tuple_construct_traits<Tuple>::copied_type copied_type;
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return copied_type(SPROUT_FORWARD(Args, args)...);
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}
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} // namespace detail
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template<typename Tuple>
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struct tuple_construct_traits {
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public:
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typedef typename sprout::tuples::detail::default_copied<
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Tuple,
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typename sprout::tuple_indexes<Tuple>::type
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>::type copied_type;
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public:
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template<typename Tup>
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static SPROUT_CONSTEXPR copied_type deep_copy(Tup&& tup) {
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return SPROUT_FORWARD(Tup, tup);
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}
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template<typename... Args>
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static SPROUT_CONSTEXPR copied_type make(Args&&... args) {
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return sprout::tuples::detail::default_make_tuple<Tuple>(SPROUT_FORWARD(Args, args)...);
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}
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template<typename Tup, typename... Args>
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static SPROUT_CONSTEXPR copied_type remake(
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Tup&&,
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Args&&... args
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)
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{
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return make(SPROUT_FORWARD(Args, args)...);
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}
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};
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template<typename Tuple>
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struct tuple_construct_traits<Tuple const>
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: public sprout::tuples::tuple_construct_traits<Tuple>
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{};
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} // namespace tuples
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using sprout::tuples::tuple_construct_traits;
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} // namespace sprout
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#endif // #ifndef SPROUT_TUPLE_TRAITS_HPP
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