From ed0230ee568ca9325a1fb5ffeca2ee9b34233ce1 Mon Sep 17 00:00:00 2001
From: Martin Glagla <martingl@gmx.de>
Date: Thu, 3 Nov 2016 22:22:27 +0100
Subject: [PATCH] Peekable::peek(): Use Option::as_ref()

---
 src/libcore/iter/mod.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/libcore/iter/mod.rs b/src/libcore/iter/mod.rs
index df4f5e5c57643..97a232de6718e 100644
--- a/src/libcore/iter/mod.rs
+++ b/src/libcore/iter/mod.rs
@@ -1341,10 +1341,7 @@ impl<I: Iterator> Peekable<I> {
         if self.peeked.is_none() {
             self.peeked = self.iter.next();
         }
-        match self.peeked {
-            Some(ref value) => Some(value),
-            None => None,
-        }
+        self.peeked.as_ref()
     }
 }