Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2001-2011 Joel de Guzman
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: ==============================================================================*/
Chris@16: #if !defined(FUSION_CONVERT_MAIN_09232005_1340)
Chris@16: #define FUSION_CONVERT_MAIN_09232005_1340
Chris@16: 
Chris@101: #include <boost/fusion/support/config.hpp>
Chris@16: #include <boost/fusion/container/map/map.hpp>
Chris@16: 
Chris@101: namespace boost { namespace fusion { namespace detail
Chris@101: {
Chris@101:     template <typename It, bool is_assoc>
Chris@101:     struct pair_from
Chris@101:     {
Chris@101:         typedef typename result_of::value_of<It>::type type;
Chris@101: 
Chris@101:         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@101:         static inline type call(It const& it)
Chris@101:         {
Chris@101:             return *it;
Chris@101:         }
Chris@101:     };
Chris@101: 
Chris@101:     template <typename It>
Chris@101:     struct pair_from<It, true>
Chris@101:     {
Chris@101:         typedef typename result_of::key_of<It>::type key_type;
Chris@101:         typedef typename result_of::value_of_data<It>::type data_type;
Chris@101:         typedef typename fusion::pair<key_type, data_type> type;
Chris@101: 
Chris@101:         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@101:         static inline type call(It const& it)
Chris@101:         {
Chris@101:             return type(deref_data(it));
Chris@101:         }
Chris@101:     };
Chris@101: }}}
Chris@101: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: // Without variadics, we will use the PP version
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: #if !defined(BOOST_FUSION_HAS_VARIADIC_MAP)
Chris@16: # include <boost/fusion/container/map/detail/cpp03/convert.hpp>
Chris@16: 
Chris@16: #else
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: // C++11 variadic implementation
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: #include <boost/fusion/container/map/detail/build_map.hpp>
Chris@16: 
Chris@16: namespace boost { namespace fusion
Chris@16: {
Chris@16:     namespace result_of
Chris@16:     {
Chris@16:         template <typename Sequence>
Chris@16:         struct as_map :
Chris@16:             detail::build_map<
Chris@16:                 typename result_of::begin<Sequence>::type
Chris@16:               , typename result_of::end<Sequence>::type
Chris@101:               , is_base_of<
Chris@101:                     associative_tag
Chris@101:                   , typename traits::category_of<Sequence>::type>::value
Chris@16:             >
Chris@16:         {
Chris@16:         };
Chris@16:     }
Chris@16: 
Chris@16:     template <typename Sequence>
Chris@101:     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:     inline typename result_of::as_map<Sequence>::type
Chris@16:     as_map(Sequence& seq)
Chris@16:     {
Chris@16:         typedef result_of::as_map<Sequence> gen;
Chris@16:         return gen::call(fusion::begin(seq), fusion::end(seq));
Chris@16:     }
Chris@16: 
Chris@16:     template <typename Sequence>
Chris@101:     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:     inline typename result_of::as_map<Sequence const>::type
Chris@16:     as_map(Sequence const& seq)
Chris@16:     {
Chris@16:         typedef result_of::as_map<Sequence const> gen;
Chris@16:         return gen::call(fusion::begin(seq), fusion::end(seq));
Chris@16:     }
Chris@16: 
Chris@16:     namespace extension
Chris@16:     {
Chris@16:         template <typename T>
Chris@16:         struct convert_impl;
Chris@16: 
Chris@16:         template <>
Chris@16:         struct convert_impl<map_tag>
Chris@16:         {
Chris@16:             template <typename Sequence>
Chris@16:             struct apply
Chris@16:             {
Chris@16:                 typedef typename
Chris@16:                     result_of::as_map<Sequence>::type
Chris@16:                 type;
Chris@16: 
Chris@101:                 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:                 static type call(Sequence& seq)
Chris@16:                 {
Chris@16:                     typedef result_of::as_map<Sequence> gen;
Chris@16:                     return gen::call(fusion::begin(seq), fusion::end(seq));
Chris@16:                 }
Chris@16:             };
Chris@16:         };
Chris@16:     }
Chris@16: }}
Chris@16: 
Chris@16: #endif
Chris@16: #endif
Chris@16: