// Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of OpenEthereum.

// OpenEthereum 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.

// OpenEthereum 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 OpenEthereum.  If not, see <http://www.gnu.org/licenses/>.

use std::fmt;

/// Type of EVM to use.
#[derive(Debug, PartialEq, Clone)]
pub enum VMType {
    /// RUST EVM
    Interpreter,
}

impl fmt::Display for VMType {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(
            f,
            "{}",
            match *self {
                VMType::Interpreter => "INT",
            }
        )
    }
}

impl Default for VMType {
    fn default() -> Self {
        VMType::Interpreter
    }
}

impl VMType {
    /// Return all possible VMs (Interpreter)
    pub fn all() -> Vec<VMType> {
        vec![VMType::Interpreter]
    }
}
