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); } } }