lib/abstractivator/cons.rb in abstractivator-0.8.0 vs lib/abstractivator/cons.rb in abstractivator-0.10.0

@@ -1,8 +1,9 @@
 module Abstractivator
   module Cons
     Nil = Object.new
+    Nil.define_singleton_method(:empty?) { true }
 
     def empty_list
       Nil
     end
 
@@ -53,6 +54,6 @@
       end
     end
 
     extend self
   end
-end
\ No newline at end of file
+end