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define-application-frame superclasses
Date: Wed, 22 May 1991 21:24 EDT
From: kanderso@BBN.COM
In CLIM 0.9.68, CLX 4.4, Lucid 4.0.2.
I basically wanted to build an application frame out of a more generic
application independent frame. I tried something like:
(define-application-frame generic-frame ()
...)
(define-application-frame application-frame (generic-frame)
...)
to my suprise, this macro generates a class like:
(defclass application-frame (frame generic-frame)
...)
which leads to a unlinearizable class-precedence list, rather than what
i expected:
(defclass application-frame (generic-frame frame)
...)
I think this is a bug. Is it a bug or a feature?
k
Hi Ken.
Can't you just define GENERIC-FRAME using DEFCLASS instead of
DEINE-APPLICATION-FRAME? Is GENERIC-FRAME just a straight mixin or does
it depend on CLIM:APPLICATION-FRAME? One thing to be careful of is that
when you specify superclasses in define-application-frame, you must
include CLIM:APPLICATION-FRAME explicitly. This is so that you can have
control over precedence ordering. All this is for 1.0, I'm not sure how
dissimilar 0.9 is?
0,,
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