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change generator_traits
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6 changed files with 541 additions and 206 deletions
226
sprout/generator/detail/generated_value.hpp
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226
sprout/generator/detail/generated_value.hpp
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/*=============================================================================
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Copyright (c) 2011-2016 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_GENERATOR_DETAIL_GENERATED_VALUE_HPP
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#define SPROUT_GENERATOR_DETAIL_GENERATED_VALUE_HPP
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#include <utility>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/type_traits/integral_constant.hpp>
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#include <sprout/type_traits/identity.hpp>
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#include <sprout/iterator/const_reference_cast.hpp>
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#include <sprout/utility/as_const.hpp>
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#include <sprout/utility/move.hpp>
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#include <sprout/tuple/tuple.hpp>
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#include <sprout/adl/not_found.hpp>
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namespace sprout_adl {
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sprout::not_found_via_adl get_generated_value(...);
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} // namespace sprout_adl
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namespace sprout {
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namespace detail {
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template<typename T>
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struct has_mem_generated_value_test {
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public:
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template<
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typename U = T,
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typename = typename sprout::identity<decltype(std::declval<U>().generated_value())>::type
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>
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static sprout::true_type test(int);
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static sprout::false_type test(...);
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};
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#if defined(_MSC_VER) && (_MSC_VER > 1900)
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template<typename T, typename Base_ = typename sprout::identity<decltype(sprout::detail::has_mem_generated_value_test<T>::test(0))>::type>
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struct has_mem_generated_value
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: public Base_
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{};
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#else
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template<typename T>
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struct has_mem_generated_value
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: public sprout::identity<decltype(sprout::detail::has_mem_generated_value_test<T>::test(0))>::type
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{};
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#endif
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template<typename T>
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struct is_substitutable_const_generated_value
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: public sprout::bool_constant<
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sprout::detail::has_mem_generated_value<T const>::value
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>
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{};
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template<typename Gen, typename = void>
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struct get_generated_value_impl;
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template<typename Gen>
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struct get_generated_value_impl<
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Gen,
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typename std::enable_if<
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std::is_lvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& sprout::detail::is_substitutable_const_generated_value<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(std::declval<Gen&>().generated_value())
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get_generated_value(Gen& gen)
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SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&>().generated_value())
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{
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typedef decltype(std::declval<Gen&>().generated_value()) type;
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return sprout::const_reference_cast<type>(sprout::as_const(gen).generated_value());
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}
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};
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template<typename Gen>
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struct get_generated_value_impl<
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Gen,
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typename std::enable_if<
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std::is_lvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& !sprout::detail::is_substitutable_const_generated_value<Gen>::value
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&& sprout::detail::has_mem_generated_value<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(std::declval<Gen&>().generated_value())
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get_generated_value(Gen& gen)
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SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&>().generated_value())
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{
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return gen.generated_value();
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}
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};
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template<typename Gen>
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struct get_generated_value_impl<
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Gen,
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typename std::enable_if<
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std::is_lvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& !sprout::detail::is_substitutable_const_generated_value<Gen>::value
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&& !sprout::detail::has_mem_generated_value<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(sprout::tuples::get<0>(std::declval<Gen&>()))
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get_generated_value(Gen& gen)
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SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<0>(std::declval<Gen&>()))
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{
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return sprout::tuples::get<0>(gen);
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}
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};
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template<typename Gen>
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struct get_generated_value_impl<
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Gen,
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typename std::enable_if<
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std::is_rvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& sprout::detail::is_substitutable_const_generated_value<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(std::declval<Gen&&>().generated_value())
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get_generated_value(Gen&& gen)
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SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&&>().generated_value())
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{
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typedef decltype(std::declval<Gen&&>().generated_value()) type;
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return sprout::const_reference_cast<type>(sprout::as_const(sprout::move(gen)).generated_value());
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}
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};
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template<typename Gen>
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struct get_generated_value_impl<
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Gen,
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typename std::enable_if<
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std::is_rvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& !sprout::detail::is_substitutable_const_generated_value<Gen>::value
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&& sprout::detail::has_mem_generated_value<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(std::declval<Gen&&>().generated_value())
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get_generated_value(Gen&& gen)
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SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&&>().generated_value())
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{
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return sprout::move(gen).generated_value();
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}
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};
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template<typename Gen>
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struct get_generated_value_impl<
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Gen,
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typename std::enable_if<
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std::is_rvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& !sprout::detail::is_substitutable_const_generated_value<Gen>::value
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&& !sprout::detail::has_mem_generated_value<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(sprout::tuples::get<0>(std::declval<Gen&&>()))
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get_generated_value(Gen&& gen)
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SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<0>(std::declval<Gen&&>()))
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{
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return sprout::tuples::get<0>(sprout::move(gen));
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}
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};
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template<typename Gen>
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struct get_generated_value_impl<
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Gen,
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typename std::enable_if<
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std::is_reference<Gen>::value && std::is_const<typename std::remove_reference<Gen>::type>::value
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&& sprout::detail::has_mem_generated_value<Gen const>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(std::declval<Gen const&>().generated_value())
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get_generated_value(Gen const& gen)
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SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen const&>().generated_value())
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{
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return gen.generated_value();
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}
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};
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template<typename Gen>
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struct get_generated_value_impl<
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Gen,
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typename std::enable_if<
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std::is_reference<Gen>::value && std::is_const<typename std::remove_reference<Gen>::type>::value
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&& !sprout::detail::has_mem_generated_value<Gen const>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(sprout::tuples::get<0>(std::declval<Gen const&>()))
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get_generated_value(Gen const& gen)
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SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<0>(std::declval<Gen const&>()))
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{
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return sprout::tuples::get<0>(gen);
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}
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};
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} // namespace detail
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} // namespace sprout
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namespace sprout_generator_detail {
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template<typename Gen>
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inline SPROUT_CONSTEXPR decltype(sprout::detail::get_generated_value_impl<Gen&>::get_generated_value(std::declval<Gen&>()))
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get_generated_value(Gen& gen)
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SPROUT_NOEXCEPT_IF_EXPR(sprout::detail::get_generated_value_impl<Gen&>::get_generated_value(std::declval<Gen&>()))
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{
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return sprout::detail::get_generated_value_impl<Gen&>::get_generated_value(gen);
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}
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template<typename Gen>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
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decltype(sprout::detail::get_generated_value_impl<Gen&&>::get_generated_value(std::declval<Gen&&>()))
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>::type
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get_generated_value(Gen&& gen)
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SPROUT_NOEXCEPT_IF_EXPR(sprout::detail::get_generated_value_impl<Gen&&>::get_generated_value(std::declval<Gen&&>()))
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{
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return sprout::detail::get_generated_value_impl<Gen&&>::get_generated_value(sprout::move(gen));
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}
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template<typename Gen>
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inline SPROUT_CONSTEXPR decltype(sprout::detail::get_generated_value_impl<Gen const&>::get_generated_value(std::declval<Gen const&>()))
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get_generated_value(Gen const& gen)
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SPROUT_NOEXCEPT_IF_EXPR(sprout::detail::get_generated_value_impl<Gen const&>::get_generated_value(std::declval<Gen const&>()))
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{
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return sprout::detail::get_generated_value_impl<Gen const&>::get_generated_value(gen);
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}
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} // namespace sprout_generator_detail
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#endif // #ifndef SPROUT_GENERATOR_DETAIL_GENERATED_VALUE_HPP
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226
sprout/generator/detail/next_generator.hpp
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226
sprout/generator/detail/next_generator.hpp
Normal file
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@ -0,0 +1,226 @@
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/*=============================================================================
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Copyright (c) 2011-2016 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_GENERATOR_DETAIL_NEXT_GENERATOR_HPP
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#define SPROUT_GENERATOR_DETAIL_NEXT_GENERATOR_HPP
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#include <utility>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/type_traits/integral_constant.hpp>
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#include <sprout/type_traits/identity.hpp>
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#include <sprout/iterator/const_reference_cast.hpp>
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#include <sprout/utility/as_const.hpp>
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#include <sprout/utility/move.hpp>
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#include <sprout/tuple/tuple.hpp>
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#include <sprout/adl/not_found.hpp>
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namespace sprout_adl {
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sprout::not_found_via_adl get_next_generator(...);
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} // namespace sprout_adl
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namespace sprout {
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namespace detail {
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template<typename T>
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struct has_mem_next_generator_test {
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public:
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template<
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typename U = T,
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typename = typename sprout::identity<decltype(std::declval<U>().next_generator())>::type
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>
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static sprout::true_type test(int);
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static sprout::false_type test(...);
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};
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#if defined(_MSC_VER) && (_MSC_VER > 1900)
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template<typename T, typename Base_ = typename sprout::identity<decltype(sprout::detail::has_mem_next_generator_test<T>::test(0))>::type>
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struct has_mem_next_generator
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: public Base_
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{};
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#else
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template<typename T>
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struct has_mem_next_generator
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: public sprout::identity<decltype(sprout::detail::has_mem_next_generator_test<T>::test(0))>::type
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{};
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#endif
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template<typename T>
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struct is_substitutable_const_next_generator
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: public sprout::bool_constant<
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sprout::detail::has_mem_next_generator<T const>::value
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>
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{};
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template<typename Gen, typename = void>
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struct get_next_generator_impl;
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template<typename Gen>
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struct get_next_generator_impl<
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Gen,
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typename std::enable_if<
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std::is_lvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& sprout::detail::is_substitutable_const_next_generator<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(std::declval<Gen&>().next_generator())
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get_next_generator(Gen& gen)
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SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&>().next_generator())
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{
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typedef decltype(std::declval<Gen&>().next_generator()) type;
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return sprout::const_reference_cast<type>(sprout::as_const(gen).next_generator());
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}
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};
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template<typename Gen>
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struct get_next_generator_impl<
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Gen,
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typename std::enable_if<
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std::is_lvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& !sprout::detail::is_substitutable_const_next_generator<Gen>::value
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&& sprout::detail::has_mem_next_generator<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(std::declval<Gen&>().next_generator())
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get_next_generator(Gen& gen)
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SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&>().next_generator())
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{
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return gen.next_generator();
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}
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};
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template<typename Gen>
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struct get_next_generator_impl<
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Gen,
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typename std::enable_if<
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std::is_lvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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&& !sprout::detail::is_substitutable_const_next_generator<Gen>::value
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&& !sprout::detail::has_mem_next_generator<Gen>::value
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>::type
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> {
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public:
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static SPROUT_CONSTEXPR decltype(sprout::tuples::get<1>(std::declval<Gen&>()))
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get_next_generator(Gen& gen)
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SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<1>(std::declval<Gen&>()))
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{
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return sprout::tuples::get<1>(gen);
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}
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};
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template<typename Gen>
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struct get_next_generator_impl<
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Gen,
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typename std::enable_if<
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std::is_rvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
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||||||
|
&& sprout::detail::is_substitutable_const_next_generator<Gen>::value
|
||||||
|
>::type
|
||||||
|
> {
|
||||||
|
public:
|
||||||
|
static SPROUT_CONSTEXPR decltype(std::declval<Gen&&>().next_generator())
|
||||||
|
get_next_generator(Gen&& gen)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&&>().next_generator())
|
||||||
|
{
|
||||||
|
typedef decltype(std::declval<Gen&&>().next_generator()) type;
|
||||||
|
return sprout::const_reference_cast<type>(sprout::as_const(sprout::move(gen)).next_generator());
|
||||||
|
}
|
||||||
|
};
|
||||||
|
template<typename Gen>
|
||||||
|
struct get_next_generator_impl<
|
||||||
|
Gen,
|
||||||
|
typename std::enable_if<
|
||||||
|
std::is_rvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
|
||||||
|
&& !sprout::detail::is_substitutable_const_next_generator<Gen>::value
|
||||||
|
&& sprout::detail::has_mem_next_generator<Gen>::value
|
||||||
|
>::type
|
||||||
|
> {
|
||||||
|
public:
|
||||||
|
static SPROUT_CONSTEXPR decltype(std::declval<Gen&&>().next_generator())
|
||||||
|
get_next_generator(Gen&& gen)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&&>().next_generator())
|
||||||
|
{
|
||||||
|
return sprout::move(gen).next_generator();
|
||||||
|
}
|
||||||
|
};
|
||||||
|
template<typename Gen>
|
||||||
|
struct get_next_generator_impl<
|
||||||
|
Gen,
|
||||||
|
typename std::enable_if<
|
||||||
|
std::is_rvalue_reference<Gen>::value && !std::is_const<typename std::remove_reference<Gen>::type>::value
|
||||||
|
&& !sprout::detail::is_substitutable_const_next_generator<Gen>::value
|
||||||
|
&& !sprout::detail::has_mem_next_generator<Gen>::value
|
||||||
|
>::type
|
||||||
|
> {
|
||||||
|
public:
|
||||||
|
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<1>(std::declval<Gen&&>()))
|
||||||
|
get_next_generator(Gen&& gen)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<1>(std::declval<Gen&&>()))
|
||||||
|
{
|
||||||
|
return sprout::tuples::get<1>(sprout::move(gen));
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
template<typename Gen>
|
||||||
|
struct get_next_generator_impl<
|
||||||
|
Gen,
|
||||||
|
typename std::enable_if<
|
||||||
|
std::is_reference<Gen>::value && std::is_const<typename std::remove_reference<Gen>::type>::value
|
||||||
|
&& sprout::detail::has_mem_next_generator<Gen const>::value
|
||||||
|
>::type
|
||||||
|
> {
|
||||||
|
public:
|
||||||
|
static SPROUT_CONSTEXPR decltype(std::declval<Gen const&>().next_generator())
|
||||||
|
get_next_generator(Gen const& gen)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen const&>().next_generator())
|
||||||
|
{
|
||||||
|
return gen.next_generator();
|
||||||
|
}
|
||||||
|
};
|
||||||
|
template<typename Gen>
|
||||||
|
struct get_next_generator_impl<
|
||||||
|
Gen,
|
||||||
|
typename std::enable_if<
|
||||||
|
std::is_reference<Gen>::value && std::is_const<typename std::remove_reference<Gen>::type>::value
|
||||||
|
&& !sprout::detail::has_mem_next_generator<Gen const>::value
|
||||||
|
>::type
|
||||||
|
> {
|
||||||
|
public:
|
||||||
|
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<1>(std::declval<Gen const&>()))
|
||||||
|
get_next_generator(Gen const& gen)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<1>(std::declval<Gen const&>()))
|
||||||
|
{
|
||||||
|
return sprout::tuples::get<1>(gen);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
} // namespace detail
|
||||||
|
} // namespace sprout
|
||||||
|
|
||||||
|
namespace sprout_generator_detail {
|
||||||
|
template<typename Gen>
|
||||||
|
inline SPROUT_CONSTEXPR decltype(sprout::detail::get_next_generator_impl<Gen&>::get_next_generator(std::declval<Gen&>()))
|
||||||
|
get_next_generator(Gen& gen)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::detail::get_next_generator_impl<Gen&>::get_next_generator(std::declval<Gen&>()))
|
||||||
|
{
|
||||||
|
return sprout::detail::get_next_generator_impl<Gen&>::get_next_generator(gen);
|
||||||
|
}
|
||||||
|
template<typename Gen>
|
||||||
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
||||||
|
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
|
||||||
|
decltype(sprout::detail::get_next_generator_impl<Gen&&>::get_next_generator(std::declval<Gen&&>()))
|
||||||
|
>::type
|
||||||
|
get_next_generator(Gen&& gen)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::detail::get_next_generator_impl<Gen&&>::get_next_generator(std::declval<Gen&&>()))
|
||||||
|
{
|
||||||
|
return sprout::detail::get_next_generator_impl<Gen&&>::get_next_generator(sprout::move(gen));
|
||||||
|
}
|
||||||
|
template<typename Gen>
|
||||||
|
inline SPROUT_CONSTEXPR decltype(sprout::detail::get_next_generator_impl<Gen const&>::get_next_generator(std::declval<Gen const&>()))
|
||||||
|
get_next_generator(Gen const& gen)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::detail::get_next_generator_impl<Gen const&>::get_next_generator(std::declval<Gen const&>()))
|
||||||
|
{
|
||||||
|
return sprout::detail::get_next_generator_impl<Gen const&>::get_next_generator(gen);
|
||||||
|
}
|
||||||
|
} // namespace sprout_generator_detail
|
||||||
|
|
||||||
|
#endif // #ifndef SPROUT_GENERATOR_DETAIL_NEXT_GENERATOR_HPP
|
|
@ -20,11 +20,14 @@ namespace sprout {
|
||||||
// generated_value
|
// generated_value
|
||||||
//
|
//
|
||||||
// effect:
|
// effect:
|
||||||
// sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_generated_value(t)
|
// sprout::generators::generator_access_traits<T>::get_generated_value(t)
|
||||||
// [default]
|
// [default]
|
||||||
// ADL callable get_generated_value(t) -> get_generated_value(t)
|
// ADL callable get_generated_value(t) -> get_generated_value(t)
|
||||||
// [default]
|
// [default]
|
||||||
// callable t.generated_value() -> t.generated_value()
|
// T is not const
|
||||||
|
// && callable sprout::as_const(t).generated_value()
|
||||||
|
// -> sprout::const_reference_cast<decltype(std::declval<T&>().generated_value())>(sprout::as_const(cont).generated_value())
|
||||||
|
// otherwise, callable t.generated_value() -> t.generated_value()
|
||||||
// otherwise -> sprout::tuples::get<0>(t)
|
// otherwise -> sprout::tuples::get<0>(t)
|
||||||
//
|
//
|
||||||
template<typename T>
|
template<typename T>
|
||||||
|
|
|
@ -9,166 +9,16 @@
|
||||||
#define SPROUT_GENERATOR_GENERATOR_ACCESS_TRAITS_HPP
|
#define SPROUT_GENERATOR_GENERATOR_ACCESS_TRAITS_HPP
|
||||||
|
|
||||||
#include <utility>
|
#include <utility>
|
||||||
#include <type_traits>
|
|
||||||
#include <sprout/config.hpp>
|
#include <sprout/config.hpp>
|
||||||
#include <sprout/utility/forward.hpp>
|
|
||||||
#include <sprout/utility/move.hpp>
|
#include <sprout/utility/move.hpp>
|
||||||
#include <sprout/tuple/tuple.hpp>
|
#include <sprout/generator/traits_fwd.hpp>
|
||||||
#include <sprout/type_traits/identity.hpp>
|
#include <sprout/generator/detail/generated_value.hpp>
|
||||||
#include <sprout/type_traits/integral_constant.hpp>
|
#include <sprout/generator/detail/next_generator.hpp>
|
||||||
#include <sprout/adl/not_found.hpp>
|
|
||||||
|
|
||||||
namespace sprout_adl {
|
|
||||||
sprout::not_found_via_adl get_generated_value(...);
|
|
||||||
sprout::not_found_via_adl get_next_generator(...);
|
|
||||||
} // namespace sprout_adl
|
|
||||||
|
|
||||||
namespace sprout {
|
|
||||||
namespace generators {
|
|
||||||
namespace detail {
|
|
||||||
template<typename T>
|
|
||||||
struct has_mem_generated_value_test {
|
|
||||||
public:
|
|
||||||
template<
|
|
||||||
typename U = T,
|
|
||||||
typename = typename sprout::identity<decltype(std::declval<U>().generated_value())>::type
|
|
||||||
>
|
|
||||||
static sprout::true_type test(int);
|
|
||||||
static sprout::false_type test(...);
|
|
||||||
};
|
|
||||||
#if defined(_MSC_VER) && (_MSC_VER > 1900)
|
|
||||||
template<typename T, typename Base_ = typename sprout::identity<decltype(sprout::generators::detail::has_mem_generated_value_test<T>::test(0))>::type>
|
|
||||||
struct has_mem_generated_value
|
|
||||||
: public Base_
|
|
||||||
{};
|
|
||||||
#else
|
|
||||||
template<typename T>
|
|
||||||
struct has_mem_generated_value
|
|
||||||
: public sprout::identity<decltype(sprout::generators::detail::has_mem_generated_value_test<T>::test(0))>::type
|
|
||||||
{};
|
|
||||||
#endif
|
|
||||||
|
|
||||||
template<typename Gen, typename = void>
|
|
||||||
struct get_generated_value_helper;
|
|
||||||
template<typename Gen>
|
|
||||||
struct get_generated_value_helper<
|
|
||||||
Gen,
|
|
||||||
typename std::enable_if<sprout::generators::detail::has_mem_generated_value<Gen>::value>::type
|
|
||||||
> {
|
|
||||||
public:
|
|
||||||
static SPROUT_CONSTEXPR decltype(std::declval<Gen>().generated_value())
|
|
||||||
call(Gen&& t)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen>().generated_value())
|
|
||||||
{
|
|
||||||
return SPROUT_FORWARD(Gen, t).generated_value();
|
|
||||||
}
|
|
||||||
};
|
|
||||||
template<typename Gen>
|
|
||||||
struct get_generated_value_helper<
|
|
||||||
Gen,
|
|
||||||
typename std::enable_if<!sprout::generators::detail::has_mem_generated_value<Gen>::value>::type
|
|
||||||
> {
|
|
||||||
public:
|
|
||||||
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<0>(std::declval<Gen>()))
|
|
||||||
call(Gen&& t)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<0>(std::declval<Gen>()))
|
|
||||||
{
|
|
||||||
return sprout::tuples::get<0>(SPROUT_FORWARD(Gen, t));
|
|
||||||
}
|
|
||||||
};
|
|
||||||
template<typename Gen>
|
|
||||||
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_generated_value_helper<Gen>::call(std::declval<Gen>()))
|
|
||||||
get_generated_value_impl(Gen&& t) {
|
|
||||||
return sprout::generators::detail::get_generated_value_helper<Gen>::call(SPROUT_FORWARD(Gen, t));
|
|
||||||
}
|
|
||||||
|
|
||||||
template<typename T>
|
|
||||||
struct has_mem_next_generator_test {
|
|
||||||
public:
|
|
||||||
template<
|
|
||||||
typename U = T,
|
|
||||||
typename = typename sprout::identity<decltype(std::declval<U>().next_generator())>::type
|
|
||||||
>
|
|
||||||
static sprout::true_type test(int);
|
|
||||||
static sprout::false_type test(...);
|
|
||||||
};
|
|
||||||
#if defined(_MSC_VER) && (_MSC_VER > 1900)
|
|
||||||
template<typename T, typename Base_ = typename sprout::identity<decltype(sprout::generators::detail::has_mem_next_generator_test<T>::test(0))>::type>
|
|
||||||
struct has_mem_next_generator
|
|
||||||
: public Base_
|
|
||||||
{};
|
|
||||||
#else
|
|
||||||
template<typename T>
|
|
||||||
struct has_mem_next_generator
|
|
||||||
: public sprout::identity<decltype(sprout::generators::detail::has_mem_next_generator_test<T>::test(0))>::type
|
|
||||||
{};
|
|
||||||
#endif
|
|
||||||
|
|
||||||
template<typename Gen, typename = void>
|
|
||||||
struct get_next_generator_helper;
|
|
||||||
template<typename Gen>
|
|
||||||
struct get_next_generator_helper<
|
|
||||||
Gen,
|
|
||||||
typename std::enable_if<sprout::generators::detail::has_mem_next_generator<Gen>::value>::type
|
|
||||||
> {
|
|
||||||
public:
|
|
||||||
static SPROUT_CONSTEXPR decltype(std::declval<Gen>().next_generator())
|
|
||||||
call(Gen&& t)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen>().next_generator())
|
|
||||||
{
|
|
||||||
return t.next_generator();
|
|
||||||
}
|
|
||||||
};
|
|
||||||
template<typename Gen>
|
|
||||||
struct get_next_generator_helper<
|
|
||||||
Gen,
|
|
||||||
typename std::enable_if<!sprout::generators::detail::has_mem_next_generator<Gen>::value>::type
|
|
||||||
> {
|
|
||||||
public:
|
|
||||||
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<1>(std::declval<Gen>()))
|
|
||||||
call(Gen&& t)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<1>(std::declval<Gen>()))
|
|
||||||
{
|
|
||||||
return sprout::tuples::get<1>(SPROUT_FORWARD(Gen, t));
|
|
||||||
}
|
|
||||||
};
|
|
||||||
template<typename Gen>
|
|
||||||
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_next_generator_helper<Gen>::call(std::declval<Gen>()))
|
|
||||||
get_next_generator_impl(Gen&& t) {
|
|
||||||
return sprout::generators::detail::get_next_generator_helper<Gen>::call(SPROUT_FORWARD(Gen, t));
|
|
||||||
}
|
|
||||||
} // namespace detail
|
|
||||||
} // namespace generators
|
|
||||||
} // namespace sprout
|
|
||||||
|
|
||||||
namespace sprout_generator_detail {
|
namespace sprout_generator_detail {
|
||||||
using sprout_adl::get_generated_value;
|
using sprout_adl::get_generated_value;
|
||||||
using sprout_adl::get_next_generator;
|
using sprout_adl::get_next_generator;
|
||||||
|
|
||||||
template<typename Gen>
|
|
||||||
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_generated_value_impl(std::declval<Gen&>()))
|
|
||||||
get_generated_value(Gen& gen)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_generated_value_impl(std::declval<Gen&>()))
|
|
||||||
{
|
|
||||||
return sprout::generators::detail::get_generated_value_impl(gen);
|
|
||||||
}
|
|
||||||
template<typename Gen>
|
|
||||||
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
||||||
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
|
|
||||||
decltype(sprout::generators::detail::get_generated_value_impl(std::declval<Gen&&>()))
|
|
||||||
>::type
|
|
||||||
get_generated_value(Gen&& gen)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_generated_value_impl(std::declval<Gen&&>()))
|
|
||||||
{
|
|
||||||
return sprout::generators::detail::get_generated_value_impl(sprout::move(gen));
|
|
||||||
}
|
|
||||||
template<typename Gen>
|
|
||||||
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_generated_value_impl(std::declval<Gen const&>()))
|
|
||||||
get_generated_value(Gen const& gen)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_generated_value_impl(std::declval<Gen const&>()))
|
|
||||||
{
|
|
||||||
return sprout::generators::detail::get_generated_value_impl(gen);
|
|
||||||
}
|
|
||||||
template<typename Gen>
|
template<typename Gen>
|
||||||
inline SPROUT_CONSTEXPR decltype(get_generated_value(std::declval<Gen>()))
|
inline SPROUT_CONSTEXPR decltype(get_generated_value(std::declval<Gen>()))
|
||||||
call_get_generated_value(Gen&& gen)
|
call_get_generated_value(Gen&& gen)
|
||||||
|
@ -176,31 +26,6 @@ namespace sprout_generator_detail {
|
||||||
{
|
{
|
||||||
return get_generated_value(SPROUT_FORWARD(Gen, gen));
|
return get_generated_value(SPROUT_FORWARD(Gen, gen));
|
||||||
}
|
}
|
||||||
|
|
||||||
template<typename Gen>
|
|
||||||
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_next_generator_impl(std::declval<Gen&>()))
|
|
||||||
get_next_generator(Gen& gen)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_next_generator_impl(std::declval<Gen&>()))
|
|
||||||
{
|
|
||||||
return sprout::generators::detail::get_next_generator_impl(gen);
|
|
||||||
}
|
|
||||||
template<typename Gen>
|
|
||||||
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
||||||
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
|
|
||||||
decltype(sprout::generators::detail::get_next_generator_impl(std::declval<Gen&&>()))
|
|
||||||
>::type
|
|
||||||
get_next_generator(Gen&& gen)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_next_generator_impl(std::declval<Gen&&>()))
|
|
||||||
{
|
|
||||||
return sprout::generators::detail::get_next_generator_impl(sprout::move(gen));
|
|
||||||
}
|
|
||||||
template<typename Gen>
|
|
||||||
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_next_generator_impl(std::declval<Gen const&>()))
|
|
||||||
get_next_generator(Gen const& gen)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_next_generator_impl(std::declval<Gen const&>()))
|
|
||||||
{
|
|
||||||
return sprout::generators::detail::get_next_generator_impl(gen);
|
|
||||||
}
|
|
||||||
template<typename Gen>
|
template<typename Gen>
|
||||||
inline SPROUT_CONSTEXPR decltype(get_next_generator(std::declval<Gen>()))
|
inline SPROUT_CONSTEXPR decltype(get_next_generator(std::declval<Gen>()))
|
||||||
call_get_next_generator(Gen&& gen)
|
call_get_next_generator(Gen&& gen)
|
||||||
|
@ -212,13 +37,33 @@ namespace sprout_generator_detail {
|
||||||
|
|
||||||
namespace sprout {
|
namespace sprout {
|
||||||
namespace generators {
|
namespace generators {
|
||||||
|
namespace detail {
|
||||||
|
template<typename Gen>
|
||||||
|
struct generator_access_traits_const_default {
|
||||||
|
public:
|
||||||
|
// get_generated_value
|
||||||
|
static SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen>::get_generated_value(std::declval<Gen const&>()))
|
||||||
|
get_generated_value(Gen const& t)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen>::get_generated_value(std::declval<Gen const&>()))
|
||||||
|
{
|
||||||
|
return sprout::generators::generator_access_traits<Gen>::get_generated_value(t);
|
||||||
|
}
|
||||||
|
// get_next_generator
|
||||||
|
static SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen>::get_next_generator(std::declval<Gen const&>()))
|
||||||
|
get_next_generator(Gen const& t)
|
||||||
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen>::get_next_generator(std::declval<Gen const&>()))
|
||||||
|
{
|
||||||
|
return sprout::generators::generator_access_traits<Gen>::get_next_generator(t);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
} // namespace detail
|
||||||
|
|
||||||
//
|
//
|
||||||
// generator_access_traits
|
// generator_access_get_generated_value_default
|
||||||
//
|
//
|
||||||
template<typename Gen>
|
template<typename Gen>
|
||||||
struct generator_access_traits {
|
struct generator_access_get_generated_value_default {
|
||||||
public:
|
public:
|
||||||
// get_generated_value
|
|
||||||
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_generated_value(std::declval<Gen&>()))
|
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_generated_value(std::declval<Gen&>()))
|
||||||
get_generated_value(Gen& t)
|
get_generated_value(Gen& t)
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_generated_value(std::declval<Gen&>()))
|
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_generated_value(std::declval<Gen&>()))
|
||||||
|
@ -237,7 +82,13 @@ namespace sprout {
|
||||||
{
|
{
|
||||||
return sprout_generator_detail::call_get_generated_value(t);
|
return sprout_generator_detail::call_get_generated_value(t);
|
||||||
}
|
}
|
||||||
// get_next_generator
|
};
|
||||||
|
//
|
||||||
|
// generator_access_get_next_generator_default
|
||||||
|
//
|
||||||
|
template<typename Gen>
|
||||||
|
struct generator_access_get_next_generator_default {
|
||||||
|
public:
|
||||||
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_next_generator(std::declval<Gen&>()))
|
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_next_generator(std::declval<Gen&>()))
|
||||||
get_next_generator(Gen& t)
|
get_next_generator(Gen& t)
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_next_generator(std::declval<Gen&>()))
|
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_next_generator(std::declval<Gen&>()))
|
||||||
|
@ -257,27 +108,28 @@ namespace sprout {
|
||||||
return sprout_generator_detail::call_get_next_generator(t);
|
return sprout_generator_detail::call_get_next_generator(t);
|
||||||
}
|
}
|
||||||
};
|
};
|
||||||
template<typename Gen>
|
|
||||||
struct generator_access_traits<Gen const> {
|
|
||||||
public:
|
|
||||||
// get_generated_value
|
|
||||||
static SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen>::get_generated_value(std::declval<Gen const&>()))
|
|
||||||
get_generated_value(Gen const& t)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen>::get_generated_value(std::declval<Gen const&>()))
|
|
||||||
{
|
|
||||||
return sprout::generators::generator_access_traits<Gen>::get_generated_value(t);
|
|
||||||
}
|
|
||||||
// get_next_generator
|
|
||||||
static SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen>::get_next_generator(std::declval<Gen const&>()))
|
|
||||||
get_next_generator(Gen const& t)
|
|
||||||
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen>::get_next_generator(std::declval<Gen const&>()))
|
|
||||||
{
|
|
||||||
return sprout::generators::generator_access_traits<Gen>::get_next_generator(t);
|
|
||||||
}
|
|
||||||
};
|
|
||||||
} // namespace generators
|
|
||||||
|
|
||||||
using sprout::generators::generator_access_traits;
|
//
|
||||||
|
// generator_access_traits_default
|
||||||
|
//
|
||||||
|
template<typename Gen>
|
||||||
|
struct generator_access_traits_default
|
||||||
|
: public sprout::generators::generator_access_get_generated_value_default<Gen>
|
||||||
|
, public sprout::generators::generator_access_get_next_generator_default<Gen>
|
||||||
|
{};
|
||||||
|
|
||||||
|
//
|
||||||
|
// generator_access_traits
|
||||||
|
//
|
||||||
|
template<typename Gen>
|
||||||
|
struct generator_access_traits
|
||||||
|
: public sprout::generators::generator_access_traits_default<Gen>
|
||||||
|
{};
|
||||||
|
template<typename Gen>
|
||||||
|
struct generator_access_traits<Gen const>
|
||||||
|
: public sprout::generators::detail::generator_access_traits_const_default<Gen>
|
||||||
|
{};
|
||||||
|
} // namespace generators
|
||||||
} // namespace sprout
|
} // namespace sprout
|
||||||
|
|
||||||
#endif // #ifndef SPROUT_GENERATOR_GENERATOR_ACCESS_TRAITS_HPP
|
#endif // #ifndef SPROUT_GENERATOR_GENERATOR_ACCESS_TRAITS_HPP
|
||||||
|
|
|
@ -20,11 +20,14 @@ namespace sprout {
|
||||||
// next_generator
|
// next_generator
|
||||||
//
|
//
|
||||||
// effect:
|
// effect:
|
||||||
// sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_next_generator(t)
|
// sprout::generators::generator_access_traits<T>::get_next_generator(t)
|
||||||
// [default]
|
// [default]
|
||||||
// ADL callable get_next_generator(t) -> get_next_generator(t)
|
// ADL callable get_next_generator(t) -> get_next_generator(t)
|
||||||
// [default]
|
// [default]
|
||||||
// callable t.next_generator() -> t.next_generator()
|
// T is not const
|
||||||
|
// && callable sprout::as_const(t).next_generator()
|
||||||
|
// -> sprout::const_reference_cast<decltype(std::declval<T&>().next_generator())>(sprout::as_const(cont).next_generator())
|
||||||
|
// otherwise, callable t.next_generator() -> t.next_generator()
|
||||||
// otherwise -> sprout::tuples::get<0>(t)
|
// otherwise -> sprout::tuples::get<0>(t)
|
||||||
//
|
//
|
||||||
template<typename T>
|
template<typename T>
|
||||||
|
|
25
sprout/generator/traits_fwd.hpp
Normal file
25
sprout/generator/traits_fwd.hpp
Normal file
|
@ -0,0 +1,25 @@
|
||||||
|
/*=============================================================================
|
||||||
|
Copyright (c) 2011-2016 Bolero MURAKAMI
|
||||||
|
https://github.com/bolero-MURAKAMI/Sprout
|
||||||
|
|
||||||
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
||||||
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||||||
|
=============================================================================*/
|
||||||
|
#ifndef SPROUT_GENERATOR_TRAITS_FWD_HPP
|
||||||
|
#define SPROUT_GENERATOR_TRAITS_FWD_HPP
|
||||||
|
|
||||||
|
#include <sprout/config.hpp>
|
||||||
|
|
||||||
|
namespace sprout {
|
||||||
|
namespace generators {
|
||||||
|
//
|
||||||
|
// generator_access_traits
|
||||||
|
//
|
||||||
|
template<typename Gen>
|
||||||
|
struct generator_access_traits;
|
||||||
|
} // namespace generators
|
||||||
|
|
||||||
|
using sprout::generators::generator_access_traits;
|
||||||
|
} // namespace sprout
|
||||||
|
|
||||||
|
#endif // #ifndef SPROUT_GENERATOR_TRAITS_FWD_HPP
|
Loading…
Reference in a new issue