/*
 * Copyright (C) 2021  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code 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.
 *
 * Antkeeper source code 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 Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef ANTKEEPER_HSM_STATE_MACHINE_HPP
#define ANTKEEPER_HSM_STATE_MACHINE_HPP

#include <memory>
#include <stack>

/// Hierarchical State Machine (HSM)
namespace hsm {

/**
 * Stack-based hierarchical state machine.
 *
 * @tparam T State type.
 */
template <typename T>
using state_machine = std::stack<std::unique_ptr<T>>;

} // namespace hsm

#endif // ANTKEEPER_HSM_STATE_MACHINE_HPP