1 files changed, 5 insertions, 1 deletions

diff --git a/crates/ra_tt/src/lib.rs b/crates/ra_tt/src/lib.rs
index 73d8395a8..10f424aae 100644
--- a/crates/ra_tt/src/lib.rs
+++ b/crates/ra_tt/src/lib.rs
@@ -103,7 +103,7 @@ impl fmt::Display for TokenTree {
 
 impl fmt::Display for Subtree {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        let (l, r) = match self.delimiter.map(|it| it.kind) {
+        let (l, r) = match self.delimiter_kind() {
             Some(DelimiterKind::Parenthesis) => ("(", ")"),
             Some(DelimiterKind::Brace) => ("{", "}"),
             Some(DelimiterKind::Bracket) => ("[", "]"),
@@ -171,6 +171,10 @@ impl Subtree {
 
         self.token_trees.len() + children_count
     }
+
+    pub fn delimiter_kind(&self) -> Option<DelimiterKind> {
+        self.delimiter.map(|it| it.kind)
+    }
 }
 
 pub mod buffer;