dvanhorn/dpc — Issue #8: typo in chapter 3 of dpc
Author: chandotg
Created: 2012-01-24 17:57:08+00:00
State: open

from the textbook:

(define-class world%
(fields light)
(define (tick-rate) 5)
(define (to-draw)
(send (send this light) draw))
(define (on-tick)
(new world% (send (send this light) switch))))

switch is undefined; should be "next" instead