lib/optional/none.rb in optional-0.0.2 vs lib/optional/none.rb in optional-0.0.3

@@ -15,11 +15,11 @@
 
   def value
     raise Option::ValueOfNoneError
   end
 
-  def value_or
-    yield
+  def value_or(default=nil, &block)
+    block.nil? ? default : block.call
   end
 
   def & other
     self
   end