optional.h

Go to the documentation of this file.

/*
 * Copyright 2024 MusicScience37 (Kenta Kabashima)
 *
 * 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.
 */
#pragma once
 
#include <optional>
 
#include "msgpack_light/serialization_buffer.h"
#include "msgpack_light/type_support/fwd.h"
 
namespace msgpack_light::type_support {

template <typename T>
struct serialization_traits<std::optional<T>> {
public:
    static void serialize(
        serialization_buffer& buffer, const std::optional<T>& value) {
        if (value) {
            serialization_traits<T>::serialize(buffer, *value);
        } else {
            buffer.serialize_nil();
        }
    }
};
 
}  // namespace msgpack_light::type_support