From: Allison Randal <[EMAIL PROTECTED]>
Date: Thu, 27 Dec 2007 19:15:40 +0200
Bob Rogers wrote:
> Thought so. I ask because Common Lisp has provision for anonymous
> classes, and I was wondering how I might support that some day. But my
> interest is just academic curiosity at this point, because I'm (still)
> nowhere near implementation.
CLOS dispatches on anonymous classes? What does it dispatch on in the
absence of a name? A class object (or equivalent)?
Yes, a class object; CLOS dispatch is done in terms of class objects.
It's not in the ANSI spec (and trying to define methods on anonymous
classes in a portable way is tricky), but is widely implemented as part
of the metaobject protocol. Mind you, I have not studied any
application that actually uses this feature, but I do recall hearing
about them.
And thanks for the other clarifications. (I was going to post a
longer response, but that's mostly what it amounted to.)
-- Bob
