91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
//
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// MessagePack for C++ static resolution routine
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//
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// Copyright (C) 2017 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_OPTIONAL_HPP
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#define MSGPACK_V1_TYPE_OPTIONAL_HPP
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#if __cplusplus >= 201703
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#include "rpc/msgpack/versioning.hpp"
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#include "rpc/msgpack/adaptor/adaptor_base.hpp"
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#include "rpc/msgpack/adaptor/check_container_size.hpp"
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#include <optional>
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namespace clmdep_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<std::optional<T>, typename std::enable_if<clmdep_msgpack::has_as<T>::value>::type> {
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std::optional<T> operator()(clmdep_msgpack::object const& o) const {
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if(o.is_nil()) return std::nullopt;
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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<std::optional<T> > {
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clmdep_msgpack::object const& operator()(clmdep_msgpack::object const& o, std::optional<T>& v) const {
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if(o.is_nil()) v = std::nullopt;
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else {
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T t;
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clmdep_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<std::optional<T> > {
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template <typename Stream>
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clmdep_msgpack::packer<Stream>& operator()(clmdep_msgpack::packer<Stream>& o, const std::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<std::optional<T> > {
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void operator()(clmdep_msgpack::object& o, const std::optional<T>& v) const {
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if (v) clmdep_msgpack::adaptor::object<T>()(o, *v);
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else o.type = clmdep_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<std::optional<T> > {
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void operator()(clmdep_msgpack::object::with_zone& o, const std::optional<T>& v) const {
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if (v) clmdep_msgpack::adaptor::object_with_zone<T>()(o, *v);
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else o.type = clmdep_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 clmdep_msgpack
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#endif // __cplusplus >= 201703
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#endif // MSGPACK_V1_TYPE_OPTIONAL_HPP
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