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); } } }