object_ref.h

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/*
 * 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 "msgpack_light/details/allocator_wrapper.h"
#include "msgpack_light/details/object_base.h"
#include "msgpack_light/details/object_data.h"
#include "msgpack_light/details/object_ref_decl.h"  // IWYU pragma: keep
 
namespace msgpack_light {

template <typename Allocator>
class mutable_object_ref
    : public details::mutable_object_base<mutable_object_ref<Allocator>,
          Allocator> {
public:
    using base_type =
        details::mutable_object_base<mutable_object_ref<Allocator>, Allocator>;
 
    using typename base_type::allocator_type;


    mutable_object_ref(details::object_data& data,
        details::allocator_wrapper<Allocator>& allocator)
        : data_(&data), allocator_(&allocator) {}



    [[nodiscard]] details::object_data& data() noexcept { return *data_; }

    [[nodiscard]] const details::object_data& data() const noexcept {
        return *data_;
    }

    [[nodiscard]] details::allocator_wrapper<Allocator>& allocator() noexcept {
        return *allocator_;
    }

 
private:
    details::object_data* data_;

    details::allocator_wrapper<Allocator>* allocator_;
};

class const_object_ref : public details::const_object_base<const_object_ref> {
public:
    using base_type = details::const_object_base<const_object_ref>;


    explicit const_object_ref(const details::object_data& data)
        : data_(&data) {}



    [[nodiscard]] const details::object_data& data() const noexcept {
        return *data_;
    }

 
private:
    const details::object_data* data_;
};
 
}  // namespace msgpack_light