Repairing previous unusual commit.

src/map.rs

@@ -263,13 +263,35 @@ impl<E: TableEntry> DisplacementSet<E> {
             }
         }
     }
-}
-pub fn new() -> DisplacementSet<E> {
+    pub fn get<K>(&mut self, index: K) -> Option<&E>
+    where
+      E: Equivalent<K>,
+      K: Hashes,
+    {
+        if self.map.len() == 0 {
+            return None;
+        }
+        let location = index.hashed() as usize % self.map.len();
+        let home = &self.map[location];
+        if home.entry.matches(&index) {
+            Some(&home.entry)
+        } else {
+            for i in 1..home.displacement as usize {
+                let neighbour = &self.map[(location + i) % self.map.len()];
+                if neighbour.entry.matches(&index) {
+                    return Some(&neighbour.entry);
+                }
+            }
+            None
+        }
+    }
+    pub fn new() -> DisplacementSet<E> {
         DisplacementSet {
             map: Vec::new(),
             map_count: 0,
             map_bounds: (0..0).into(),
         }
+    }
 }
 
 #[derive(Clone)]
@@ -354,12 +376,6 @@ impl<E: Hashes + PartialEq> Equivalent<E> for SetEntry<E> {
     }
 }
 
-impl<K, E: Hashes + PartialEq + Equivalent<K>> Equivalent<K> for SetEntry<E> {
-    fn matches(&self, other: &K) -> bool {
-        self.0.unwrap().matches(other)
-    }
-}
-
 impl<E: Hashes + PartialEq> Set<E> {
     pub fn resize(&mut self, len: usize) {
         self.0.resize(len)