lib/dottie/freckle.rb in dottie-0.0.1 vs lib/dottie/freckle.rb in dottie-0.0.2

@@ -4,10 +4,15 @@
     
     ##
     # Creates a new Freckle to wrap the supplied object.
     
     def initialize(obj)
-      @_wrapped_object = obj
+      case obj
+      when Hash, Array
+        @_wrapped_object = obj
+      else
+        raise TypeError, 'must be a Hash or Array'
+      end
     end
     
     ##
     # Returns the wrapped Hash, and raises an error if the wrapped object is
     # not a Hash.