ConfigNode.hpp

// -*- C++ -*-
/*
 *    Copyright (C) 2021 Joshua Boudreau <jboudreau@45drives.com>
 *
 *    This file is part of lib45d.
 *
 *    lib45d is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    lib45d is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with lib45d.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <string>
#include <unordered_map>
 
namespace ffd {
    class ConfigNode {
    public:
        std::string value_; 
        std::unordered_map<std::string, ConfigNode>
            *sub_map_; 
 
        ConfigNode(std::string value, std::unordered_map<std::string, ConfigNode> *sub_map)
            : value_(value)
            , sub_map_(sub_map)
            , is_copy_(false) {}
        ConfigNode(void) : value_(""), sub_map_(nullptr), is_copy_(false) {}
        ConfigNode(const ConfigNode &other)
            : value_(other.value_)
            , sub_map_(other.sub_map_)
            , is_copy_(true) {}
        ConfigNode(ConfigNode &&other)
            : value_(std::move(other.value_))
            , sub_map_(std::move(other.sub_map_))
            , is_copy_(false) {
            other.sub_map_ = nullptr;
        }
        ConfigNode &operator=(ConfigNode &&other) {
            value_ = std::move(other.value_);
            sub_map_ = std::move(other.sub_map_);
            is_copy_ = false;
            other.sub_map_ = nullptr;
            return *this;
        }
        ~ConfigNode() {
            if (sub_map_ && !is_copy_)
                delete sub_map_;
        }
    private:
        bool is_copy_; 
    };
} // namespace ffd