src/test/ui/feature-gates/feature-gate-edition_macro_pats.rs

   1 // Feature gate test for `edition_macro_pats` feature.
   2
   3 macro_rules! foo {
   4     ($x:pat2018) => {}; //~ERROR `pat2018` and `pat2021` are unstable
   5     ($x:pat2021) => {}; //~ERROR `pat2018` and `pat2021` are unstable
   6 }
   7
   8 fn main() {}