src/test/run-pass/binding/match-var-hygiene.rs

   1 // run-pass
   2 // shouldn't affect evaluation of $ex.
   3 macro_rules! bad_macro { ($ex:expr) => (
   4     {match 9 {_x => $ex}}
   5 )}
   6
   7 fn main() {
   8     match 8 {
   9         _x => assert_eq!(bad_macro!(_x),8)
  10     }
  11 }