get_matching_enum.rs

get_matching_enum.rs

//#[allow(dead_code)]
enum Point {
    Nothing,
    TuplePoint(i32, i32),
    StructPoint {
        x: i32,
        y: i32
    }
}

fn get_point(n: u8) -> Point {
    match n {
        1 => Point::TuplePoint(-1, 1),
        2 => Point::StructPoint {
            x: -1,
            y: 1
        },
        _ => Point::Nothing
    }
}

fn main() {
    let p = get_point(2);
    match p {
        Point::Nothing => println!("no point"),
        Point::TuplePoint(x, y) => println!("x is {} and y is {}", x, y),
        //Point::StructPoint {x, y}  => println!("x is {} and y is {}", x, y),
        //#[allow(unreachable_patterns)]
        _ => {}
    }
}

gh gist view 048dc8e5613d0e7337a033ce4832f776