src/test/ui/pattern/issue-71042-opaquely-typed-constant-used-in-pattern.rs

   1 #![feature(impl_trait_in_bindings)]
   2 #![allow(incomplete_features)]
   3
   4 fn main() {
   5     const C: impl Copy = 0;
   6     match C {
   7         C | //~ ERROR: `impl Copy` cannot be used in patterns
   8         _ => {}
   9     }
  10 }