lib/ImmutableQueue.rb in maroon-0.6.5 vs lib/ImmutableQueue.rb in maroon-0.7.0

@@ -1,50 +1,44 @@
 class ImmutableQueue
-       
-def push(element)
+  def push(element)
     b = (back or ImmutableStack.empty)
-ImmutableQueue.new(front, b.push(element))
+    ImmutableQueue.new(front, b.push(element))
+  end
 
- end
- 
-def pop()
+  def pop()
     f, b = front, back
-if (f == ImmutableStack.empty) then
-  until (b == ImmutableStack.empty) do
-    (e, b = b.pop
-    f = f.push(e))
+    if (f == ImmutableStack.empty) then
+      until (b == ImmutableStack.empty) do
+        (e, b = b.pop
+        f = f.push(e))
+      end
+    end
+    head, f = f.pop
+    if (f == b) then
+      [head, ImmutableQueue.empty]
+    else
+      [head, ImmutableQueue.new(f, b)]
+    end
   end
-end
-head, f = f.pop
-if (f == b) then
-  [head, ImmutableQueue.empty]
-else
-  [head, ImmutableQueue.new(f, b)]
-end
 
- end
- 
-def self.empty()
+  def self.empty()
     @@empty ||= ImmutableQueue.new(ImmutableStack.empty, ImmutableStack.empty)
- end
- 
-def push_array(arr)
+  end
+
+  def push_array(arr)
     q = self
-arr.each { |i| q = q.push(i) } if arr
-q
+    arr.each { |i| q = q.push(i) } if arr
+    q
+  end
 
- end
-
- private
- 
-def initialize(front,back)
+  private
+  def initialize(front, back)
     @front = (front or ImmutableStack.empty)
-@back = (back or ImmutableStack.empty)
-self.freeze
+    @back = (back or ImmutableStack.empty)
+    self.freeze
+  end
 
- end
-attr_reader :front
-      attr_reader :back
-      
-    
-    
-      end
+  attr_reader :front
+  attr_reader :back
+
+
+end
\ No newline at end of file