1 files changed, 5 insertions, 0 deletions
diff --git a/src/libsyntax_pos/hygiene.rs b/src/libsyntax_pos/hygiene.rs
index 7e985cf52f5..f053cb10d06 100644
--- a/src/libsyntax_pos/hygiene.rs
+++ b/src/libsyntax_pos/hygiene.rs
@@ -101,6 +101,11 @@ impl Mark {
     }
 
     #[inline]
+    pub fn parent(self) -> Mark {
+        HygieneData::with(|data| data.marks[self.0 as usize].parent)
+    }
+
+    #[inline]
     pub fn expn_info(self) -> Option<ExpnInfo> {
         HygieneData::with(|data| data.marks[self.0 as usize].expn_info.clone())
     }