Swapped implementation of MaxLengthQueue.

src/structures.py

@@ -234,28 +234,28 @@ class queue(object):
         self.back = []
 
             
-## class MaxLengthQueue(queue):
-##     __slots__ = ('length',)
-##     def __init__(self, length, seq=()):
-##         self.length = length
-##         queue.__init__(self, seq)
+class MaxLengthQueue(queue):
+    __slots__ = ('length',)
+    def __init__(self, length, seq=()):
+        self.length = length
+        queue.__init__(self, seq)
 
-##     def __getstate__(self):
-##         return (self.length, queue.__getstate__(self))
+    def __getstate__(self):
+        return (self.length, queue.__getstate__(self))
 
-##     def __setstate__(self, (length, q)):
-##         self.length = length
-##         queue.__setstate__(self, q)
+    def __setstate__(self, (length, q)):
+        self.length = length
+        queue.__setstate__(self, q)
         
-##     def enqueue(self, elt):
-##         queue.enqueue(self, elt)
-##         if len(self) > self.length:
-##             self.dequeue()
+    def enqueue(self, elt):
+        queue.enqueue(self, elt)
+        if len(self) > self.length:
+            self.dequeue()
 
-class MaxLengthQueue(RingBuffer):
-    enqueue = RingBuffer.append
-    def peek(self):
-        return self[0]
+## class MaxLengthQueue(RingBuffer):
+##     enqueue = RingBuffer.append
+##     def peek(self):
+##         return self[0]
 
 
 def sliceIndices(slice, length):