Merge #4134

4134: Special case for empty comments in doc comment kind  r=matklad a=edwin0cheng

Part of #4103

Fix `ui/empty/empty-comment.rs macros`

Co-authored-by: Edwin Cheng <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/crates/ra_syntax/src/ast/tokens.rs b/crates/ra_syntax/src/ast/tokens.rs
index 8e04b0bbd..3865729b8 100644
--- a/crates/ra_syntax/src/ast/tokens.rs
+++ b/crates/ra_syntax/src/ast/tokens.rs
@@ -58,6 +58,9 @@ const COMMENT_PREFIX_TO_KIND: &[(&str, CommentKind)] = {
 };
 
 fn kind_by_prefix(text: &str) -> CommentKind {
+    if text == "/**/" {
+        return CommentKind { shape: CommentShape::Block, doc: None };
+    }
     for (prefix, kind) in COMMENT_PREFIX_TO_KIND.iter() {
         if text.starts_with(prefix) {
             return *kind;