Add test for placeholder parameters in trait fn defs

2019-01-22 18:46:15 +01:00
parent 234b65fd61
commit c550c6759d
3 changed files with 40 additions and 0 deletions
--- a/crates/ra_syntax/src/grammar/params.rs
+++ b/crates/ra_syntax/src/grammar/params.rs
@@ -79,6 +79,11 @@ fn value_parameter(p: &mut Parser, flavor: Flavor) {
            let la1 = p.nth(1);
            let la2 = p.nth(2);
            let la3 = p.nth(3);
+
+            // test trait_fn_placeholder_parameter
+            // trait Foo {
+            //     fn bar(_: u64);
+            // }
            if (la0 == IDENT || la0 == UNDERSCORE) && la1 == COLON
                || la0 == AMP && la1 == IDENT && la2 == COLON
                || la0 == AMP && la1 == MUT_KW && la2 == IDENT && la3 == COLON