Fix a bug for single dollar sign macro

2020-03-04 01:03:44 +08:00
parent b55d22e060
commit 3dc3d9d18f
3 changed files with 16 additions and 6 deletions
--- a/crates/ra_mbe/src/tests.rs
+++ b/crates/ra_mbe/src/tests.rs
@@ -23,6 +23,7 @@ mod rule_parsing {
        check("($($i:ident)*) => ($_)");
        check("($($true:ident)*) => ($true)");
        check("($($false:ident)*) => ($false)");
+        check("($) => ($)");
    }

    #[test]