lib/option.rb in option-1.1.0 vs lib/option.rb in option-1.2.0

@@ -8,11 +8,10 @@
       when OptionClass then or_nil == that.or_nil
       else or_nil == that
     end
   end
 
-
   private
 
   def assert_option(result)
     case result
       when OptionClass then return result
@@ -94,10 +93,14 @@
     case get
       when OptionClass then get.flatten
       else self
     end
   end
+
+  def error(*argv)
+    self
+  end
 end
 
 class NoneClass < OptionClass
 
   def dup
@@ -168,9 +171,13 @@
     assert_option(blk.call)
   end
 
   def flatten
     self
+  end
+
+  def error(*argv)
+    argv.empty? ? raise : raise(*argv)
   end
 end
 
 None = NoneClass.new
 Some = SomeClass