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Diffstat (limited to 'third_party/msgpack/include/msgpack/v1/adaptor/boost/fusion.hpp')
| -rw-r--r-- | third_party/msgpack/include/msgpack/v1/adaptor/boost/fusion.hpp | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/third_party/msgpack/include/msgpack/v1/adaptor/boost/fusion.hpp b/third_party/msgpack/include/msgpack/v1/adaptor/boost/fusion.hpp new file mode 100644 index 0000000000..69a1124067 --- /dev/null +++ b/third_party/msgpack/include/msgpack/v1/adaptor/boost/fusion.hpp @@ -0,0 +1,203 @@ +// +// MessagePack for C++ static resolution routine +// +// Copyright (C) 2015-2016 KONDO Takatoshi +// +// 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 MSGPACK_V1_TYPE_BOOST_FUSION_HPP +#define MSGPACK_V1_TYPE_BOOST_FUSION_HPP + +#include "msgpack/versioning.hpp" +#include "msgpack/adaptor/adaptor_base.hpp" +#include "msgpack/adaptor/check_container_size.hpp" +#include "msgpack/meta.hpp" + +#include "msgpack/adaptor/pair.hpp" + +#if !defined (MSGPACK_USE_CPP03) +#include "msgpack/adaptor/cpp11/tuple.hpp" +#endif // #if !defined (MSGPACK_USE_CPP03) + +#include <boost/fusion/support/is_sequence.hpp> +#include <boost/fusion/sequence/intrinsic/size.hpp> +#include <boost/fusion/algorithm/iteration/for_each.hpp> +#include <boost/fusion/sequence/intrinsic/at.hpp> +#include <boost/fusion/include/mpl.hpp> +#include <boost/mpl/size.hpp> + +namespace msgpack { + +/// @cond +MSGPACK_API_VERSION_NAMESPACE(v1) { +/// @endcond + +namespace adaptor { + +namespace detail { + +template <typename T> +struct is_std_pair { + static bool const value = false; +}; + +template <typename T, typename U> +struct is_std_pair<std::pair<T, U> > { + static bool const value = true; +}; + +#if !defined(MSGPACK_USE_CPP03) + +template <typename T> +struct is_std_tuple { + static bool const value = false; +}; + +template <typename... Args> +struct is_std_tuple<std::tuple<Args...>> { + static bool const value = true; +}; + +#endif // !defined(MSGPACK_USE_CPP03) + +template <typename T> +struct is_seq_no_pair_no_tuple { + static bool const value = + boost::fusion::traits::is_sequence<T>::value + && + !is_std_pair<T>::value +#if !defined (MSGPACK_USE_CPP03) + && + !is_std_tuple<T>::value +#endif // !defined (MSGPACK_USE_CPP03) + ; +}; + +} // namespace detail + +#if !defined (MSGPACK_USE_CPP03) + +template <typename T> +struct as< + T, + typename msgpack::enable_if< + detail::is_seq_no_pair_no_tuple<T>::value && + boost::mpl::fold< + T, + boost::mpl::bool_<true>, + boost::mpl::if_ < + boost::mpl::or_< + boost::mpl::_1, + msgpack::has_as<boost::mpl::_2> + >, + boost::mpl::bool_<true>, + boost::mpl::bool_<false> + > + >::type::value + >::type +> { + T operator()(msgpack::object const& o) const { + if (o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); } + if (o.via.array.size != checked_get_container_size(boost::mpl::size<T>::value)) { + throw msgpack::type_error(); + } + using tuple_t = decltype(to_tuple(std::declval<T>(), gen_seq<boost::mpl::size<T>::value>())); + return to_t( + o.as<tuple_t>(), + msgpack::gen_seq<boost::mpl::size<T>::value>()); + } + template<std::size_t... Is, typename U> + static std::tuple< + typename std::remove_reference< + typename boost::fusion::result_of::at_c<T, Is>::type + >::type...> + to_tuple(U const& u, seq<Is...>) { + return std::make_tuple(boost::fusion::at_c<Is>(u)...); + } + template<std::size_t... Is, typename U> + static T to_t(U const& u, seq<Is...>) { + return T(std::get<Is>(u)...); + } +}; + +#endif // !defined (MSGPACK_USE_CPP03) + +template <typename T> +struct convert<T, typename msgpack::enable_if<detail::is_seq_no_pair_no_tuple<T>::value>::type > { + msgpack::object const& operator()(msgpack::object const& o, T& v) const { + if (o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); } + if (o.via.array.size != checked_get_container_size(boost::fusion::size(v))) { + throw msgpack::type_error(); + } + uint32_t index = 0; + boost::fusion::for_each(v, convert_imp(o, index)); + return o; + } +private: + struct convert_imp { + convert_imp(msgpack::object const& obj, uint32_t& index):obj_(obj), index_(index) {} + template <typename U> + void operator()(U& v) const { + msgpack::adaptor::convert<U>()(obj_.via.array.ptr[index_++], v); + } + private: + msgpack::object const& obj_; + uint32_t& index_; + }; +}; + +template <typename T> +struct pack<T, typename msgpack::enable_if<detail::is_seq_no_pair_no_tuple<T>::value>::type > { + template <typename Stream> + msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const T& v) const { + uint32_t size = checked_get_container_size(boost::fusion::size(v)); + o.pack_array(size); + boost::fusion::for_each(v, pack_imp<Stream>(o)); + return o; + } +private: + template <typename Stream> + struct pack_imp { + pack_imp(msgpack::packer<Stream>& stream):stream_(stream) {} + template <typename U> + void operator()(U const& v) const { + stream_.pack(v); + } + private: + msgpack::packer<Stream>& stream_; + }; +}; + +template <typename T> +struct object_with_zone<T, typename msgpack::enable_if<detail::is_seq_no_pair_no_tuple<T>::value>::type > { + void operator()(msgpack::object::with_zone& o, const T& v) const { + uint32_t size = checked_get_container_size(boost::fusion::size(v)); + o.type = msgpack::type::ARRAY; + o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object))); + o.via.array.size = size; + uint32_t count = 0; + boost::fusion::for_each(v, with_zone_imp(o, count)); + } +private: + struct with_zone_imp { + with_zone_imp(msgpack::object::with_zone const& obj, uint32_t& count):obj_(obj), count_(count) {} + template <typename U> + void operator()(U const& v) const { + obj_.via.array.ptr[count_++] = msgpack::object(v, obj_.zone); + } + msgpack::object::with_zone const& obj_; + uint32_t& count_; + }; +}; + +} // namespace adaptor + +/// @cond +} // MSGPACK_API_VERSION_NAMESPACE(v1) +/// @endcond + +} // namespace msgpack + +#endif // MSGPACK_V1_TYPE_BOOST_FUSION_HPP |