src/test/ui/pattern/usefulness/issue-30240-rpass.rs

   1 // run-pass
   2 fn main() {
   3     let &ref a = &[0i32] as &[_];
   4     assert_eq!(a, &[0i32] as &[_]);
   5
   6     let &ref a = "hello";
   7     assert_eq!(a, "hello");
   8
   9     match "foo" {
  10         "fool" => unreachable!(),
  11         "foo" => {},
  12         ref _x => unreachable!()
  13     }
  14 }