match.rs

enum Meal {
    TvDinner,
    HomeCooked { healthy: bool },
}

let lunch = Meal::TvDinner;
let dinner = Meal::HomeCooked { healthy: true };

match lunch {
    Meal::TvDinner => println!("Eating a TV dinner"),
    Meal::HomeCooked { healthy } => {
        if healthy {
            println!("Eating a healthy home-cooked meal");
        } else {
            println!("Eating a non-healthy home-cooked meal");
        }
    },
}


match lunch {
    Meal::TvDinner => println!("Eating a TV dinner"),
    Meal::HomeCooked { healthy } if healthy => println!("Eating a healthy home-cooked meal"),
    _ => println!("Eating a non-healthy home-cooked meal"),
}


match lunch {
    Meal::TvDinner => println!("Eating a TV dinner"),
    Meal::HomeCooked { healthy: true } => println!("Eating a healthy home-cooked meal"),
    Meal::HomeCooked { healthy: false } => println!("Eating a non-healthy home-cooked meal"),
}