/*
* Copyright (C) 2019 ~ 2020 Uniontech Software Technology Co.,Ltd.
*
* This program 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
* any later version.
*
* This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef RESULT_H
#define RESULT_H

template <typename T>
class Result
{
public:
    static Result<T> ok(const T &value);
    static Result<T> err(const T &value);

    Result(const bool stat, const T &value);

    bool is_ok() const
    {
        return m_ok;
    }
    T unwrap() const
    {
        return m_value;
    }

private:
    bool m_ok;
    T m_value;
};

template <typename T>
Result<T> Result<T>::ok(const T &value)
{
    return {true, value};
}

template <typename T>
Result<T> Result<T>::err(const T &value)
{
    return {false, value};
}

template <typename T>
Result<T>::Result(const bool stat, const T &value)
    : m_ok(stat)
    , m_value(value) {}

#endif  // RESULT_H
