compiler/rustc_error_codes/src/error_codes/E0769.md

   1 A tuple struct or tuple variant was used in a pattern as if it were a struct or
   2 struct variant.
   3
   4 Erroneous code example:
   5
   6 ```compile_fail,E0769
   7 enum E {
   8     A(i32),
   9 }
  10
  11 let e = E::A(42);
  12
  13 match e {
  14     E::A { number } => { // error!
  15         println!("{}", number);
  16     }
  17 }
  18 ```
  19
  20 To fix this error, you can use the tuple pattern:
  21
  22 ```
  23 # enum E {
  24 #     A(i32),
  25 # }
  26 # let e = E::A(42);
  27 match e {
  28     E::A(number) => { // ok!
  29         println!("{}", number);
  30     }
  31 }
  32 ```
  33
  34 Alternatively, you can also use the struct pattern by using the correct field
  35 names and binding them to new identifiers:
  36
  37 ```
  38 # enum E {
  39 #     A(i32),
  40 # }
  41 # let e = E::A(42);
  42 match e {
  43     E::A { 0: number } => { // ok!
  44         println!("{}", number);
  45     }
  46 }
  47 ```