// // 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 // // 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_MSGPACK_TUPLE_HPP define MSGPACK_CPP11_MSGPACK_TUPLE_HPP

include “msgpack/versioning.hpp” include “msgpack/object_fwd.hpp”

include <tuple>

namespace msgpack {

/// @cond MSGPACK_API_VERSION_NAMESPACE(v1) { /// @endcond

namespace type {

// tuple
using std::get;
using std::tuple_size;
using std::tuple_element;
using std::uses_allocator;
using std::ignore;
using std::make_tuple;
using std::tie;
using std::forward_as_tuple;
using std::swap;

template< class... Types >
class tuple : public std::tuple<Types...> {
public:
    using base = std::tuple<Types...>;

    using base::base;

    tuple() = default;
    tuple(tuple const&) = default;
    tuple(tuple&&) = default;

    template<typename... OtherTypes>
    tuple(tuple<OtherTypes...> const& other):base(static_cast<std::tuple<OtherTypes...> const&>(other)) {}
    template<typename... OtherTypes>
    tuple(tuple<OtherTypes...> && other):base(static_cast<std::tuple<OtherTypes...> &&>(other)) {}

    tuple& operator=(tuple const&) = default;
    tuple& operator=(tuple&&) = default;

    template<typename... OtherTypes>
    tuple& operator=(tuple<OtherTypes...> const& other) {
        *static_cast<base*>(this) = static_cast<std::tuple<OtherTypes...> const&>(other);
        return *this;
    }
    template<typename... OtherTypes>
    tuple& operator=(tuple<OtherTypes...> && other) {
        *static_cast<base*>(this) = static_cast<std::tuple<OtherTypes...> &&>(other);
        return *this;
    }

    template< std::size_t I>
    typename tuple_element<I, base >::type&
    get() { return std::get<I>(*this); }

    template< std::size_t I>
    typename tuple_element<I, base >::type const&
    get() const { return std::get<I>(*this); }

    template< std::size_t I>
    typename tuple_element<I, base >::type&&
    get() && { return std::get<I>(*this); }
};

template< class... Tuples >
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)...);
}

} // 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<type::tuple<Args…>> {

template <typename Stream>
msgpack::packer<Stream>& operator()(
    msgpack::packer<Stream>& o,
    const 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 Tuple, std::size_t N> struct MsgpackTupleConverter {

static void convert(
    msgpack::object const& o,
    Tuple& v) {
    MsgpackTupleConverter<Tuple, N-1>::convert(o, v);
    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 convert<type::tuple<Args…>> {

msgpack::object const& operator()(
    msgpack::object const& o,
    type::tuple<Args...>& v) const {
    if(o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); }
    if(o.via.array.size < sizeof...(Args)) { 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<type::tuple<Args...>> {
void operator()(
    msgpack::object::with_zone& o,
    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)));
    o.via.array.size = sizeof...(Args);
    MsgpackTupleToObjectWithZone<decltype(v), sizeof...(Args)>::convert(o, v);
}

};

} // namespace adaptor

/// @cond } // MSGPACK_API_VERSION_NAMESPACE(v1) ///

} // namespace msgpack

endif // MSGPACK_CPP11_MSGPACK_TUPLE_HPP