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msgpack-msgpack-c/include/msgpack/adaptor/nil.hpp
T
Takatoshi Kondo e8d3c8d6c5 Re-designed user types dispatching mechanism.
msgpakc-c 0.5.9 or older uses ADL.
msgpack-c 1.0.x uses overloading with header files ordering.
msgpack-c 1.1.x uses functor with class template specialization.
2015-04-02 18:23:37 +09:00

82 lines
1.9 KiB
C++

//
// MessagePack for C++ static resolution routine
//
// Copyright (C) 2008-2009 FURUHASHI Sadayuki
//
// 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_TYPE_NIL_HPP
#define MSGPACK_TYPE_NIL_HPP
#include "msgpack/versioning.hpp"
#include "msgpack/adaptor/adaptor_base.hpp"
namespace msgpack {
MSGPACK_API_VERSION_NAMESPACE(v1) {
namespace type {
struct nil { };
} // namespace type
namespace adaptor {
template <>
struct convert<type::nil> {
msgpack::object const& operator()(msgpack::object const& o, type::nil&) const {
if(o.type != msgpack::type::NIL) { throw msgpack::type_error(); }
return o;
}
};
template <>
struct pack<type::nil> {
template <typename Stream>
msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const type::nil&) const {
o.pack_nil();
return o;
}
};
template <>
struct object<type::nil> {
void operator()(msgpack::object& o, type::nil) const {
o.type = msgpack::type::NIL;
}
};
template <>
struct object_with_zone<type::nil> {
void operator()(msgpack::object::with_zone& o, type::nil v) const {
static_cast<msgpack::object&>(o) << v;
}
};
} // namespace adaptror
template <>
inline void msgpack::object::as<void>() const
{
msgpack::type::nil v;
convert(v);
}
} // MSGPACK_API_VERSION_NAMESPACE(v1)
} // namespace msgpack
#endif // MSGPACK_TYPE_NIL_HPP