Macro: WIDGET-RENDER-HELPER

Source

(defmacro widget-render-helper (widget div-or-span)
  `(with-slots (css-class css-id css-style)
       ,widget
     (if (or css-class css-id css-style)
         (,div-or-span :class css-class
                       :id css-id
                       :style css-style
           (call-next-method))
        (call-next-method))))