[plt-scheme] instantiating another instance of same class

At Wed, 9 Apr 2003 12:48:39 -0400, "Neil W. Van Dyke" wrote:
> One more question: Are there cases in which the class of an instance
> must be hidden from *methods of its superclass*?

Offhand, I can't see any need for that protection.

This sounds like a feature that some other language might have
explored (and maybe kept). Does anyone know?

Matthew