/*
 * SPDX-FileCopyrightText: 2013, 2015 ljfa-ag <ljfa-ag@web.de>
 *
 * SPDX-License-Identifier: LGPL-3.0-or-later
 */

/*
 * libnbt++ - A library for the Minecraft Named Binary Tag format.
 * Copyright (C) 2013, 2015  ljfa-ag
 *
 * This file is part of libnbt++.
 *
 * libnbt++ is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * libnbt++ 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with libnbt++.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef NBT_VISITOR_H_INCLUDED
#define NBT_VISITOR_H_INCLUDED

#include "tagfwd.h"

namespace nbt
{

	/**
	 * @brief Base class for visitors of tags
	 *
	 * Implementing the Visitor pattern
	 */
	class nbt_visitor
	{
	  public:
		virtual ~nbt_visitor() noexcept = 0; // Abstract class

		virtual void visit(tag_byte&) {}
		virtual void visit(tag_short&) {}
		virtual void visit(tag_int&) {}
		virtual void visit(tag_long&) {}
		virtual void visit(tag_float&) {}
		virtual void visit(tag_double&) {}
		virtual void visit(tag_byte_array&) {}
		virtual void visit(tag_string&) {}
		virtual void visit(tag_list&) {}
		virtual void visit(tag_compound&) {}
		virtual void visit(tag_int_array&) {}
		virtual void visit(tag_long_array&) {}
	};

	/**
	 * @brief Base class for visitors of constant tags
	 *
	 * Implementing the Visitor pattern
	 */
	class const_nbt_visitor
	{
	  public:
		virtual ~const_nbt_visitor() noexcept = 0; // Abstract class

		virtual void visit(const tag_byte&) {}
		virtual void visit(const tag_short&) {}
		virtual void visit(const tag_int&) {}
		virtual void visit(const tag_long&) {}
		virtual void visit(const tag_float&) {}
		virtual void visit(const tag_double&) {}
		virtual void visit(const tag_byte_array&) {}
		virtual void visit(const tag_string&) {}
		virtual void visit(const tag_list&) {}
		virtual void visit(const tag_compound&) {}
		virtual void visit(const tag_int_array&) {}
		virtual void visit(const tag_long_array&) {}
	};

	inline nbt_visitor::~nbt_visitor() noexcept {}

	inline const_nbt_visitor::~const_nbt_visitor() noexcept {}

} // namespace nbt

#endif // NBT_VISITOR_H_INCLUDED
