lib/active_memoize/shared.rb in active_memoize-2.0.2 vs lib/active_memoize/shared.rb in active_memoize-2.0.3

@@ -8,9 +8,11 @@
     def cache
       @cache ||= {}
     end
 
     def key(method_name, method_args)
+      return method_name.to_s if method_args.empty?
+
       method_sha1 = Digest::SHA1.hexdigest(method_args.to_s)
       "#{method_name}:#{method_sha1}"
     end
 
   end