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//
// MessagePack for C++ static resolution routine
//
// Copyright (C) 2008-2016 FURUHASHI Sadayuki and 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_CPP11_MSGPACK_TUPLE_HPP
#define MSGPACK_V1_CPP11_MSGPACK_TUPLE_HPP
#include "msgpack/v1/adaptor/detail/cpp11_msgpack_tuple_decl.hpp"
#include "msgpack/adaptor/adaptor_base.hpp"
#include "msgpack/pack.hpp"
namespace msgpack {
/// @cond
MSGPACK_API_VERSION_NAMESPACE(v1) {
/// @endcond
namespace type {
template <class... Args>
inline tuple<Args...> make_tuple(Args&&... args) {
return tuple<Args...>(std::forward<Args>(args)...);
}
template<class... Args>
inline tuple<Args&&...> forward_as_tuple (Args&&... args) noexcept {
return tuple<Args&&...>(std::forward<Args>(args)...);
}
template <class... Tuples>
inline auto tuple_cat(Tuples&&... args) ->
decltype(
std::tuple_cat(std::forward<typename std::remove_reference<Tuples>::type::base>(args)...)
) {
return std::tuple_cat(std::forward<typename std::remove_reference<Tuples>::type::base>(args)...);
}
template <class... Args>
inline tuple<Args&...> tie(Args&... args) {
return tuple<Args&...>(args...);
}
} // namespace type
// --- Pack from tuple to packer stream ---
template <typename Stream, typename Tuple, std::size_t N>
struct MsgpackTuplePacker {
static void pack(
msgpack::packer<Stream>& o,
const Tuple& v) {
MsgpackTuplePacker<Stream, Tuple, N-1>::pack(o, v);
o.pack(type::get<N-1>(v));
}
};
template <typename Stream, typename Tuple>
struct MsgpackTuplePacker<Stream, Tuple, 1> {
static void pack (
msgpack::packer<Stream>& o,
const Tuple& v) {
o.pack(type::get<0>(v));
}
};
template <typename Stream, typename Tuple>
struct MsgpackTuplePacker<Stream, Tuple, 0> {
static void pack (
msgpack::packer<Stream>&,
const Tuple&) {
}
};
namespace adaptor {
template <typename... Args>
struct pack<msgpack::type::tuple<Args...>> {
template <typename Stream>
msgpack::packer<Stream>& operator()(
msgpack::packer<Stream>& o,
const msgpack::type::tuple<Args...>& v) const {
o.pack_array(sizeof...(Args));
MsgpackTuplePacker<Stream, decltype(v), sizeof...(Args)>::pack(o, v);
return o;
}
};
} // namespace adaptor
// --- Convert from tuple to object ---
template <typename T, typename... Args>
struct MsgpackTupleAsImpl {
static msgpack::type::tuple<T, Args...> as(msgpack::object const& o) {
return msgpack::type::tuple_cat(
msgpack::type::make_tuple(o.via.array.ptr[o.via.array.size - sizeof...(Args) - 1].as<T>()),
MsgpackTupleAs<Args...>::as(o));
}
};
template <typename... Args>
struct MsgpackTupleAs {
static msgpack::type::tuple<Args...> as(msgpack::object const& o) {
return MsgpackTupleAsImpl<Args...>::as(o);
}
};
template <>
struct MsgpackTupleAs<> {
static msgpack::type::tuple<> as (msgpack::object const&) {
return msgpack::type::tuple<>();
}
};
template <typename Tuple, std::size_t N>
struct MsgpackTupleConverter {
static void convert(
msgpack::object const& o,
Tuple& v) {
MsgpackTupleConverter<Tuple, N-1>::convert(o, v);
if (o.via.array.size >= N)
o.via.array.ptr[N-1].convert<typename std::remove_reference<decltype(type::get<N-1>(v))>::type>(type::get<N-1>(v));
}
};
template <typename Tuple>
struct MsgpackTupleConverter<Tuple, 1> {
static void convert (
msgpack::object const& o,
Tuple& v) {
o.via.array.ptr[0].convert<typename std::remove_reference<decltype(type::get<0>(v))>::type>(type::get<0>(v));
}
};
template <typename Tuple>
struct MsgpackTupleConverter<Tuple, 0> {
static void convert (
msgpack::object const&,
Tuple&) {
}
};
namespace adaptor {
template <typename... Args>
struct as<msgpack::type::tuple<Args...>, typename std::enable_if<msgpack::any_of<msgpack::has_as, Args...>::value>::type> {
msgpack::type::tuple<Args...> operator()(
msgpack::object const& o) const {
if (o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); }
return MsgpackTupleAs<Args...>::as(o);
}
};
template <typename... Args>
struct convert<msgpack::type::tuple<Args...>> {
msgpack::object const& operator()(
msgpack::object const& o,
msgpack::type::tuple<Args...>& v) const {
if(o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); }
MsgpackTupleConverter<decltype(v), sizeof...(Args)>::convert(o, v);
return o;
}
};
} // namespace adaptor
// --- Convert from tuple to object with zone ---
template <typename Tuple, std::size_t N>
struct MsgpackTupleToObjectWithZone {
static void convert(
msgpack::object::with_zone& o,
const Tuple& v) {
MsgpackTupleToObjectWithZone<Tuple, N-1>::convert(o, v);
o.via.array.ptr[N-1] = msgpack::object(type::get<N-1>(v), o.zone);
}
};
template <typename Tuple>
struct MsgpackTupleToObjectWithZone<Tuple, 1> {
static void convert (
msgpack::object::with_zone& o,
const Tuple& v) {
o.via.array.ptr[0] = msgpack::object(type::get<0>(v), o.zone);
}
};
template <typename Tuple>
struct MsgpackTupleToObjectWithZone<Tuple, 0> {
static void convert (
msgpack::object::with_zone&,
const Tuple&) {
}
};
namespace adaptor {
template <typename... Args>
struct object_with_zone<msgpack::type::tuple<Args...>> {
void operator()(
msgpack::object::with_zone& o,
msgpack::type::tuple<Args...> const& v) const {
o.type = msgpack::type::ARRAY;
o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*sizeof...(Args), MSGPACK_ZONE_ALIGNOF(msgpack::object)));
o.via.array.size = sizeof...(Args);
MsgpackTupleToObjectWithZone<decltype(v), sizeof...(Args)>::convert(o, v);
}
};
} // namespace adaptor
/// @cond
} // MSGPACK_API_VERSION_NAMESPACE(v1)
///@endcond
} // namespace msgpack
#endif // MSGPACK_CPP11_MSGPACK_TUPLE_HPP
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