From 028595548bea83508c9626835ac84409c83778ed Mon Sep 17 00:00:00 2001
From: Edwin Cheng <edwin0cheng@gmail.com>
Date: Wed, 4 Mar 2020 22:29:55 +0800
Subject: Fix #3436

---
 crates/ra_mbe/src/tt_iter.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'crates/ra_mbe/src/tt_iter.rs')

diff --git a/crates/ra_mbe/src/tt_iter.rs b/crates/ra_mbe/src/tt_iter.rs
index 319f1ee65..100184e66 100644
--- a/crates/ra_mbe/src/tt_iter.rs
+++ b/crates/ra_mbe/src/tt_iter.rs
@@ -53,6 +53,10 @@ impl<'a> TtIter<'a> {
             _ => Err(()),
         }
     }
+
+    pub(crate) fn peek_n(&self, n: usize) -> Option<&tt::TokenTree> {
+        self.inner.as_slice().get(n)
+    }
 }
 
 impl<'a> Iterator for TtIter<'a> {
-- 
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