lib/jimmy/transform_keys.rb in jimmy-0.5.4 vs lib/jimmy/transform_keys.rb in jimmy-0.5.5

@@ -14,10 +14,10 @@
       def cache(method)
         (@cache ||= {})[method] ||= {}
       end
 
       def transform(sym, method)
-        if method
+        if method && sym.is_a?(Symbol)
           cache(method)[sym] ||= __send__(method, sym.to_s).to_sym
         else
           sym
         end
       end