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Supported the C++11 tuple.

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This commit is contained in:
Takatoshi Kondo
2014-07-08 19:18:43 +09:00
parent 6a349d0b28
commit f6a5402194
4 changed files with 162 additions and 13 deletions
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121
include/msgpack/adaptor/cpp11/tuple.hpp Normal file
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//
// MessagePack for C++ static resolution routine
//
// Copyright (C) 2008-2014 FURUHASHI Sadayuki and KONDO Takatoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef MSGPACK_CPP11_TUPLE_HPP
#define MSGPACK_CPP11_TUPLE_HPP
#include <tuple>
#include "msgpack/object.hpp"
#include "msgpack/cpp_config.hpp"
namespace msgpack {
// --- Pack ( from tuple to packer stream ---
template <typename Stream, typename Tuple, std::size_t N>
struct StdTuplePacker {
static void pack(
packer<Stream>& o,
const Tuple& v) {
StdTuplePacker<Stream, Tuple, N-1>::pack(o, v);
o.pack(std::get<N-1>(v));
}
};
template <typename Stream, typename Tuple>
struct StdTuplePacker<Stream, Tuple, 1> {
static void pack (
packer<Stream>& o,
const Tuple& v) {
o.pack(std::get<0>(v));
}
};
template <typename Stream, typename... Args>
const packer<Stream>& operator<< (
packer<Stream>& o,
const std::tuple<Args...>& v) {
o.pack_array(sizeof...(Args));
StdTuplePacker<Stream, decltype(v), sizeof...(Args)>::pack(o, v);
return o;
}
// --- Convert from tuple to object ---
template <typename Tuple, std::size_t N>
struct StdTupleConverter {
static void convert(
object const& o,
Tuple& v) {
StdTupleConverter<Tuple, N-1>::convert(o, v);
o.via.array.ptr[N-1].convert<typename std::remove_reference<decltype(std::get<N-1>(v))>::type>(std::get<N-1>(v));
}
};
template <typename Tuple>
struct StdTupleConverter<Tuple, 1> {
static void convert (
object const& o,
Tuple& v) {
o.via.array.ptr[0].convert<typename std::remove_reference<decltype(std::get<0>(v))>::type>(std::get<0>(v));
}
};
template <typename... Args>
std::tuple<Args...>& operator>> (
object const& o,
std::tuple<Args...>& v) {
if(o.type != type::ARRAY) { throw type_error(); }
if(o.via.array.size < sizeof...(Args)) { throw type_error(); }
StdTupleConverter<decltype(v), sizeof...(Args)>::convert(o, v);
return v;
}
// --- Convert from tuple to object with zone ---
template <typename Tuple, std::size_t N>
struct StdTupleToObjectWithZone {
static void convert(
object::with_zone& o,
const Tuple& v) {
StdTupleToObjectWithZone<Tuple, N-1>::convert(o, v);
o.via.array.ptr[N-1] = object(std::get<N-1>(v), o.zone);
}
};
template <typename Tuple>
struct StdTupleToObjectWithZone<Tuple, 1> {
static void convert (
object::with_zone& o,
const Tuple& v) {
o.via.array.ptr[0] = object(std::get<0>(v), o.zone);
}
};
template <typename... Args>
inline void operator<< (
object::with_zone& o,
std::tuple<Args...>& v) {
o.type = type::ARRAY;
o.via.array.ptr = static_cast<object*>(o.zone->allocate_align(sizeof(object)*sizeof...(Args)));
o.via.array.size = sizeof...(Args);
StdTupleToObjectWithZone<decltype(v), sizeof...(Args)>::convert(o, v);
}
} // msgpack
#endif // MSGPACK_CPP11_TUPLE_HPP