From: Jeff Lowery <Jeff.Lowery_at_creo.com>
Date: Wed, 22 Jan 2003 10:31:33 -0800

I, too, was curious about the lack of support for abstract types. I was
thinking it would just be a matter of sticking an "abstract" keyword in the
class declaration that was generated, but I suppose there's some
not-so-subtle interactions I'm overlooking.