enum Direction {

  Up,

  Down,

  Left,

  Right,

}

​

fn main() {

  let my_direction = Direction::Left;

​

  match my_direction {

    Direction::Up => println!("Going up"),

    Direction::Down => println!("Going down"),

    Direction::Left => println!("Going left"),

    Direction::Right => println!("Going right"),

  }

}