# Error code E0769

A tuple struct or tuple variant was used in a pattern as if it were a struct or struct variant.

Erroneous code example:

    #![allow(unused)]
    fn main() {
    enum E {
        A(i32),
    }

    let e = E::A(42);

    match e {
        E::A { number } => { // error!
            println!("{}", number);
        }
    }
    }

To fix this error, you can use the tuple pattern:

    #![allow(unused)]
    fn main() {
    enum E {
        A(i32),
    }
    let e = E::A(42);
    match e {
        E::A(number) => { // ok!
            println!("{}", number);
        }
    }
    }

Alternatively, you can also use the struct pattern by using the correct field names and binding them to new identifiers:

    #![allow(unused)]
    fn main() {
    enum E {
        A(i32),
    }
    let e = E::A(42);
    match e {
        E::A { 0: number } => { // ok!
            println!("{}", number);
        }
    }
    }