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97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
//
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// MessagePack for C++ static resolution routine
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//
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// Copyright (C) 2015 KONDO Takatoshi
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef MSGPACK_V1_TYPE_BOOST_OPTIONAL_HPP
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#define MSGPACK_V1_TYPE_BOOST_OPTIONAL_HPP
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#include "msgpack/versioning.hpp"
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#include "msgpack/adaptor/adaptor_base.hpp"
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#include "msgpack/adaptor/check_container_size.hpp"
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// To suppress warning on Boost.1.58.0
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#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) || defined(__clang__)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-parameter"
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#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) || defined(__clang__)
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#include <boost/optional.hpp>
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#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) || defined(__clang__)
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#pragma GCC diagnostic pop
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#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) || defined(__clang__)
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namespace msgpack {
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/// @cond
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MSGPACK_API_VERSION_NAMESPACE(v1) {
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/// @endcond
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namespace adaptor {
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#if !defined (MSGPACK_USE_CPP03)
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template <typename T>
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struct as<boost::optional<T>, typename std::enable_if<msgpack::has_as<T>::value>::type> {
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boost::optional<T> operator()(msgpack::object const& o) const {
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if(o.is_nil()) return boost::none;
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return o.as<T>();
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}
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};
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#endif // !defined (MSGPACK_USE_CPP03)
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template <typename T>
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struct convert<boost::optional<T> > {
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msgpack::object const& operator()(msgpack::object const& o, boost::optional<T>& v) const {
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if(o.is_nil()) v = boost::none;
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else {
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T t;
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msgpack::adaptor::convert<T>()(o, t);
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v = t;
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}
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return o;
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}
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};
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template <typename T>
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struct pack<boost::optional<T> > {
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template <typename Stream>
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msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const boost::optional<T>& v) const {
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if (v) o.pack(*v);
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else o.pack_nil();
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return o;
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}
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};
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template <typename T>
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struct object<boost::optional<T> > {
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void operator()(msgpack::object& o, const boost::optional<T>& v) const {
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if (v) msgpack::adaptor::object<T>()(o, *v);
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else o.type = msgpack::type::NIL;
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}
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};
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template <typename T>
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struct object_with_zone<boost::optional<T> > {
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void operator()(msgpack::object::with_zone& o, const boost::optional<T>& v) const {
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if (v) msgpack::adaptor::object_with_zone<T>()(o, *v);
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else o.type = msgpack::type::NIL;
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}
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};
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} // namespace adaptor
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/// @cond
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} // MSGPACK_API_VERSION_NAMESPACE(v1)
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/// @endcond
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} // namespace msgpack
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#endif // MSGPACK_V1_TYPE_BOOST_OPTIONAL_HPP
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