compiler/rustc_error_codes/src/error_codes/E0532.md

   1 Pattern arm did not match expected kind.
   2
   3 Erroneous code example:
   4
   5 ```compile_fail,E0532
   6 enum State {
   7     Succeeded,
   8     Failed(String),
   9 }
  10
  11 fn print_on_failure(state: &State) {
  12     match *state {
  13         // error: expected unit struct, unit variant or constant, found tuple
  14         //        variant `State::Failed`
  15         State::Failed => println!("Failed"),
  16         _ => ()
  17     }
  18 }
  19 ```
  20
  21 To fix this error, ensure the match arm kind is the same as the expression
  22 matched.
  23
  24 Fixed example:
  25
  26 ```
  27 enum State {
  28     Succeeded,
  29     Failed(String),
  30 }
  31
  32 fn print_on_failure(state: &State) {
  33     match *state {
  34         State::Failed(ref msg) => println!("Failed with {}", msg),
  35         _ => ()
  36     }
  37 }
  38 ```