mirror of
https://github.com/msgpack/msgpack-c.git
synced 2025-10-21 07:45:02 +02:00
8b87e62835
some headers are not self-contained, as they depend on symbols from headers which aren't included
94 lines
2.3 KiB
C++
94 lines
2.3 KiB
C++
//
|
|
// MessagePack for C++ static resolution routine
|
|
//
|
|
// Copyright (C) 2017 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_OPTIONAL_HPP
|
|
#define MSGPACK_V1_TYPE_OPTIONAL_HPP
|
|
|
|
#include "msgpack/cpp_version.hpp"
|
|
|
|
#if MSGPACK_CPP_VERSION >= 201703
|
|
|
|
#include "msgpack/versioning.hpp"
|
|
#include "msgpack/adaptor/adaptor_base.hpp"
|
|
#include "msgpack/object.hpp"
|
|
#include "msgpack/adaptor/check_container_size.hpp"
|
|
|
|
#include <optional>
|
|
|
|
namespace msgpack {
|
|
|
|
/// @cond
|
|
MSGPACK_API_VERSION_NAMESPACE(v1) {
|
|
/// @endcond
|
|
|
|
namespace adaptor {
|
|
|
|
#if !defined (MSGPACK_USE_CPP03)
|
|
|
|
template <typename T>
|
|
struct as<std::optional<T>, typename std::enable_if<msgpack::has_as<T>::value>::type> {
|
|
std::optional<T> operator()(msgpack::object const& o) const {
|
|
if(o.is_nil()) return std::nullopt;
|
|
return o.as<T>();
|
|
}
|
|
};
|
|
|
|
#endif // !defined (MSGPACK_USE_CPP03)
|
|
|
|
template <typename T>
|
|
struct convert<std::optional<T> > {
|
|
msgpack::object const& operator()(msgpack::object const& o, std::optional<T>& v) const {
|
|
if(o.is_nil()) v = std::nullopt;
|
|
else {
|
|
T t;
|
|
msgpack::adaptor::convert<T>()(o, t);
|
|
v = t;
|
|
}
|
|
return o;
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct pack<std::optional<T> > {
|
|
template <typename Stream>
|
|
msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::optional<T>& v) const {
|
|
if (v) o.pack(*v);
|
|
else o.pack_nil();
|
|
return o;
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct object<std::optional<T> > {
|
|
void operator()(msgpack::object& o, const std::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<std::optional<T> > {
|
|
void operator()(msgpack::object::with_zone& o, const std::optional<T>& v) const {
|
|
if (v) msgpack::adaptor::object_with_zone<T>()(o, *v);
|
|
else o.type = msgpack::type::NIL;
|
|
}
|
|
};
|
|
|
|
} // namespace adaptor
|
|
|
|
/// @cond
|
|
} // MSGPACK_API_VERSION_NAMESPACE(v1)
|
|
/// @endcond
|
|
|
|
} // namespace msgpack
|
|
|
|
#endif // MSGPACK_CPP_VERSION >= 201703
|
|
|
|
#endif // MSGPACK_V1_TYPE_OPTIONAL_HPP
|