Put back macro rule for checking syntax

crossbeam-rs · May 16, 2022 · c8c1c83 · c8c1c83
1 parent 34d3885
commit c8c1c83
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/crossbeam-channel/tests/golang.rs b/crossbeam-channel/tests/golang.rs
@@ -214,6 +214,9 @@ macro_rules! go {
             }
         })
     };
+    (@parse $($tail:tt)*) => {
+        compile_error!("invalid `go!` syntax")
+    };
     ($($tail:tt)*) => {{
         go!(@parse $($tail)*)
     }};