anchor.diff:           (item3 (new-graphics-rect-widget "lightblue"))
            (item4 (new-graphics-rect-widget "lightyellow"))
            (items (list item1 item2 item3 item4))
  -         (scene      (qnew "QGraphicsScene(qreal,qreal,qreal,qreal)" 0 0 300 300))
  +         (scene      (qnew "QGraphicsScene(qreal...)" 0 0 300 300))
            (window     (qnew "QGraphicsView(QGraphicsScene*)" scene))
            (machine    (qnew "QStateMachine"))
            (group      (qnew "QState"
  
positive.code: 
  ;;; state-switch-event
  
  (let (events)
    (defun new-state-switch-event (rand)
      (let ((ev (qnew "QEvent(QEvent::Type)" +state-switch-event+)))
        (push (list ev rand) events)
        ev))
    (defun event-rand (event)
      (second (find event events :key 'first :test 'qeql))))
  
  ;;; state-switch-transition
  
  
negative.code:                  (and (= +state-switch-event+
                           (qfun event "type"))
                        (= (transition-rand trans)
                           (event-rand)))))
      trans))
  
  ;;; state-switcher
  