src/test/ui/pattern/usefulness/issue-80501-or-pat-and-macro.rs

   1 // check-pass
   2 #![deny(unreachable_patterns)]
   3 pub enum TypeCtor {
   4     Slice,
   5     Array,
   6 }
   7
   8 pub struct ApplicationTy(TypeCtor);
   9
  10 macro_rules! ty_app {
  11     ($ctor:pat) => {
  12         ApplicationTy($ctor)
  13     };
  14 }
  15
  16 fn _foo(ty: ApplicationTy) {
  17     match ty {
  18         ty_app!(TypeCtor::Array) | ty_app!(TypeCtor::Slice) => {}
  19     }
  20
  21     // same as above, with the macro expanded
  22     match ty {
  23         ApplicationTy(TypeCtor::Array) | ApplicationTy(TypeCtor::Slice) => {}
  24     }
  25 }
  26
  27 fn main() {}