_copy_ivars_from_controller

# File actionpack/lib/action_view/base.rb, line 321
      def _copy_ivars_from_controller #:nodoc:
        if @controller
          variables = @controller.instance_variable_names
          variables -= @controller.protected_instance_variables if @controller.respond_to?(:protected_instance_variables)
          variables.each { |name| instance_variable_set(name, @controller.instance_variable_get(name)) }
        end
      end