From becad9bb07423ed4d0d8b192cce83de99b535e86 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 13 Mar 2013 17:07:23 -0400
Subject: add the mutate_values method to the Map trait

---
 src/libstd/smallintmap.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/libstd/smallintmap.rs')

diff --git a/src/libstd/smallintmap.rs b/src/libstd/smallintmap.rs
index 726e7c36abd..bdce257e347 100644
--- a/src/libstd/smallintmap.rs
+++ b/src/libstd/smallintmap.rs
@@ -85,7 +85,17 @@ impl<V> Map<uint, V> for SmallIntMap<V> {
         self.each(|&(_, v)| blk(v))
     }
 
-    /// Return the value corresponding to the key in the map
+    /// Visit all key-value pairs in order
+    fn mutate_values(&mut self, it: &fn(&uint, &'self mut V) -> bool) {
+        for uint::range(0, self.v.len()) |i| {
+            match self.v[i] {
+              Some(ref mut elt) => if !it(&i, elt) { break },
+              None => ()
+            }
+        }
+    }
+
+    /// Iterate over the map and mutate the contained values
     pure fn find(&self, key: &uint) -> Option<&self/V> {
         if *key < self.v.len() {
             match self.v[*key] {
-- 
cgit 1.4.1-3-g733a5