optional.hpp
Go to the documentation of this file.
//
// MessagePack for C++ static resolution routine
//
// Copyright (C) 2015 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_TYPE_BOOST_OPTIONAL_HPP
#define MSGPACK_V1_TYPE_BOOST_OPTIONAL_HPP
#include "msgpack/versioning.hpp"
#include "msgpack/adaptor/adaptor_base.hpp"
#include "msgpack/adaptor/check_container_size.hpp"
// To suppress warning on Boost.1.58.0
#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) || defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) || defined(__clang__)
#include <boost/optional.hpp>
#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) || defined(__clang__)
#pragma GCC diagnostic pop
#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) || defined(__clang__)
namespace msgpack {
MSGPACK_API_VERSION_NAMESPACE(v1) {
namespace adaptor {
#if !defined (MSGPACK_USE_CPP03)
template <typename T>
struct as<boost::optional<T>, typename std::enable_if<msgpack::has_as<T>::value>::type> {
boost::optional<T> operator()(msgpack::object const& o) const {
if(o.is_nil()) return boost::none;
return o.as<T>();
}
};
#endif // !defined (MSGPACK_USE_CPP03)
template <typename T>
struct convert<boost::optional<T> > {
msgpack::object const& operator()(msgpack::object const& o, boost::optional<T>& v) const {
if(o.is_nil()) v = boost::none;
else {
T t;
msgpack::adaptor::convert<T>()(o, t);
v = t;
}
return o;
}
};
template <typename T>
struct pack<boost::optional<T> > {
template <typename Stream>
msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const boost::optional<T>& v) const {
if (v) o.pack(*v);
else o.pack_nil();
return o;
}
};
template <typename T>
struct object<boost::optional<T> > {
void operator()(msgpack::object& o, const boost::optional<T>& v) const {
if (v) msgpack::adaptor::object<T>()(o, *v);
else o.type = msgpack::type::NIL;
}
};
template <typename T>
struct object_with_zone<boost::optional<T> > {
void operator()(msgpack::object::with_zone& o, const boost::optional<T>& v) const {
if (v) msgpack::adaptor::object_with_zone<T>()(o, *v);
else o.type = msgpack::type::NIL;
}
};
} // namespace adaptor
} // MSGPACK_API_VERSION_NAMESPACE(v1)
} // namespace msgpack
#endif // MSGPACK_V1_TYPE_BOOST_OPTIONAL_HPP
msgpack::adaptor::pack< boost::optional< T > >::operator()
msgpack::packer< Stream > & operator()(msgpack::packer< Stream > &o, const boost::optional< T > &v) const
Definition: optional.hpp:65
msgpack::adaptor::as
Definition: object_fwd_decl.hpp:62
msgpack::object::as
std::enable_if< msgpack::has_as< T >::value, T >::type as() const
Get value as T.
Definition: object.hpp:593
adaptor_base.hpp
msgpack::adaptor::as< boost::optional< T >, typename std::enable_if< msgpack::has_as< T >::value >::type >::operator()
boost::optional< T > operator()(msgpack::object const &o) const
Definition: optional.hpp:41
msgpack
Definition: adaptor_base.hpp:15
versioning.hpp
msgpack::adaptor::object_with_zone< boost::optional< T > >::operator()
void operator()(msgpack::object::with_zone &o, const boost::optional< T > &v) const
Definition: optional.hpp:82
msgpack::object::with_zone
Definition: object.hpp:34
msgpack::packer::pack
packer< Stream > & pack(const T &v)
Packing function template.
msgpack::object::is_nil
bool is_nil() const
Cheking nil.
Definition: object_fwd.hpp:99
msgpack::type::NIL
Definition: object_fwd_decl.hpp:29
msgpack::adaptor::object_with_zone
Definition: adaptor_base.hpp:43
msgpack::adaptor::pack
Definition: adaptor_base.hpp:32
msgpack::adaptor::object< boost::optional< T > >::operator()
void operator()(msgpack::object &o, const boost::optional< T > &v) const
Definition: optional.hpp:74
msgpack::object
Object class that corresponding to MessagePack format object.
Definition: object_fwd.hpp:75
msgpack::object::type
msgpack::type::object_type type
Definition: object_fwd.hpp:92
MSGPACK_API_VERSION_NAMESPACE
#define MSGPACK_API_VERSION_NAMESPACE(ns)
Definition: versioning.hpp:58
check_container_size.hpp
msgpack::adaptor::object
Definition: adaptor_base.hpp:38
msgpack::packer
The class template that supports continuous packing.
Definition: adaptor_base_decl.hpp:24
msgpack::adaptor::convert< boost::optional< T > >::operator()
msgpack::object const & operator()(msgpack::object const &o, boost::optional< T > &v) const
Definition: optional.hpp:51
msgpack::packer::pack_nil
packer< Stream > & pack_nil()
Packing nil.
Definition: pack.hpp:1135
msgpack::adaptor::convert
Definition: adaptor_base.hpp:27