Path: utzoo!attcan!uunet!samsung!rex!ukma!dftsrv!mimsy!midway!gargoyle!ddsw1!olsa99!ctk1!undeed!unpcs
From: unpcs@Daisy.EE.UND.AC.ZA (UNP Comp Sci)
Newsgroups: comp.object
Subject: SCOOPS methods don't return the object
Summary: Scheme methods have no way of returning the object itself
Keywords: object lisp scheme
Message-ID: <1990Dec10.105542.26173@Daisy.EE.UND.AC.ZA>
Date: 10 Dec 90 10:55:42 GMT
Distribution: comp
Organization: Univ. Natal, Durban, S. Africa
Lines: 13

I have found, much to my frustration, that the object oriented extensions to
scheme lisp (scoops) do not allow for methods to return the object itself.

Consider
     (send (make-instance some-class) msg args)
One would like this to evaluate to the object, once modified by msg.  However a
method can't (or can it?) refer to the object on which it is working.

I am using PC Scheme from TI.

Any comments?

- Bobby Abraham, Dept of Computer Science, University of Natal, Pmb