---

yaml
---
r: 102240
b: refs/heads/master
c: 4da6d04
h: refs/heads/master
v: v3

Author: brunoabinader

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 1c27c90119b7e55ce160f39543874b166db7eae6
+refs/heads/master: 4da6d041c268d58654d54b317288c940e5c623fd
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 6e7f170fedd3c526a643c0b2d13863acd982be02
 refs/heads/try: a97642026c18a624ff6ea01075dd9550f8ed07ff

trunk/src/libcollections/list.rs

@@ -105,15 +105,12 @@ impl<T:'static + Clone> List<T> {
             }
         }
     }
-}
 
-/*
-/// Push one element into the front of a list, returning a new list
-/// THIS VERSION DOESN'T ACTUALLY WORK
-fn push<T:Clone>(ll: &mut @list<T>, vv: T) {
-    ll = &mut @cons(vv, *ll)
+    /// Push one element into the front of a list, returning a new list
+    pub fn unshift(&self, element: T) -> List<T> {
+        Cons(element, @(self.clone()))
+    }
 }
-*/
 
 #[cfg(test)]
 mod tests {
@@ -228,4 +225,13 @@ mod tests {
         assert_eq!(List::from_vec([1, 2, 3, 4]),
                    List::from_vec([1, 2]).append(List::from_vec([3, 4])));
     }
+
+    #[test]
+    fn test_unshift() {
+        let list = List::from_vec([1]);
+        let new_list = list.unshift(0);
+        assert_eq!(list.len(), 1u);
+        assert_eq!(new_list.len(), 2u);
+        assert_eq!(new_list, List::from_vec([0, 1]));
+    }
 }