1// 2// MessagePack for C++ static resolution routine 3// 4// Copyright (C) 2014-2015 KONDO Takatoshi 5// 6// Distributed under the Boost Software License, Version 1.0. 7// (See accompanying file LICENSE_1_0.txt or copy at 8// http://www.boost.org/LICENSE_1_0.txt) 9// 10 11#ifndef MSGPACK_CPP11_ARRAY_HPP 12#define MSGPACK_CPP11_ARRAY_HPP 13 14#include "msgpack/versioning.hpp" 15#include "msgpack/adaptor/adaptor_base.hpp" 16#include "msgpack/adaptor/check_container_size.hpp" 17#include "msgpack/meta.hpp" 18 19#include <array> 20 21namespace msgpack { 22 23/// @cond 24MSGPACK_API_VERSION_NAMESPACE(v1) { 25/// @endcond 26 27namespace adaptor { 28 29namespace detail { 30 31namespace array { 32 33template<typename T, std::size_t N1, std::size_t... I1, std::size_t N2, std::size_t... I2> 34inline std::array<T, N1+N2> concat( 35 std::array<T, N1>&& a1, 36 std::array<T, N2>&& a2, 37 msgpack::seq<I1...>, 38 msgpack::seq<I2...>) { 39 return {{ std::move(a1[I1])..., std::move(a2[I2])... }}; 40} 41 42template<typename T, std::size_t N1, std::size_t N2> 43inline std::array<T, N1+N2> concat(std::array<T, N1>&& a1, std::array<T, N2>&& a2) { 44 return concat(std::move(a1), std::move(a2), msgpack::gen_seq<N1>(), msgpack::gen_seq<N2>()); 45} 46 47template <typename T, std::size_t N> 48struct as_impl { 49 static std::array<T, N> as(msgpack::object const& o) { 50 msgpack::object* p = o.via.array.ptr + N - 1; 51 return concat(as_impl<T, N-1>::as(o), std::array<T, 1>{{p->as<T>()}}); 52 } 53}; 54 55template <typename T> 56struct as_impl<T, 1> { 57 static std::array<T, 1> as(msgpack::object const& o) { 58 msgpack::object* p = o.via.array.ptr; 59 return std::array<T, 1>{{p->as<T>()}}; 60 } 61}; 62 63template <typename T> 64struct as_impl<T, 0> { 65 static std::array<T, 0> as(msgpack::object const&) { 66 return std::array<T, 0>(); 67 } 68}; 69 70} // namespace array 71 72} // namespace detail 73 74template <typename T, std::size_t N> 75struct as<std::array<T, N>, typename std::enable_if<msgpack::has_as<T>::value>::type> { 76 std::array<T, N> operator()(msgpack::object const& o) const { 77 if(o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); } 78 if(o.via.array.size != N) { throw msgpack::type_error(); } 79 return detail::array::as_impl<T, N>::as(o); 80 } 81}; 82 83template <typename T, std::size_t N> 84struct convert<std::array<T, N>> { 85 msgpack::object const& operator()(msgpack::object const& o, std::array<T, N>& v) const { 86 if(o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); } 87 if(o.via.array.size != N) { throw msgpack::type_error(); } 88 if(o.via.array.size > 0) { 89 msgpack::object* p = o.via.array.ptr; 90 msgpack::object* const pend = o.via.array.ptr + o.via.array.size; 91 T* it = &v[0]; 92 do { 93 p->convert(*it); 94 ++p; 95 ++it; 96 } while(p < pend); 97 } 98 return o; 99 } 100}; 101 102template <typename T, std::size_t N> 103struct pack<std::array<T, N>> { 104 template <typename Stream> 105 msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::array<T, N>& v) const { 106 uint32_t size = checked_get_container_size(v.size()); 107 o.pack_array(size); 108 for(auto const& e : v) o.pack(e); 109 return o; 110 } 111}; 112 113template <typename T, std::size_t N> 114struct object_with_zone<std::array<T, N>> { 115 void operator()(msgpack::object::with_zone& o, const std::array<T, N>& v) const { 116 o.type = msgpack::type::ARRAY; 117 if(v.empty()) { 118 o.via.array.ptr = nullptr; 119 o.via.array.size = 0; 120 } else { 121 uint32_t size = checked_get_container_size(v.size()); 122 msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size)); 123 o.via.array.size = size; 124 o.via.array.ptr = p; 125 for (auto const& e : v) *p++ = msgpack::object(e, o.zone); 126 } 127 } 128}; 129 130} // namespace adaptor 131 132/// @cond 133} // MSGPACK_API_VERSION_NAMESPACE(v1) 134/// @endcond 135 136} // namespace msgpack 137 138#endif // MSGPACK_CPP11_ARRAY_HPP 139