Guile-2.2 - goops slot redefinition at subclass level

[David Pirotte]

Hello Andy,

>  * GOOPS: are there incompatible changes that we think are bad?
>    Subthread :)    

2-      slot redefinition at subclass level

See bug#20423 for a full description, here is the summary of what I think we 
should
do:

        When there are superclasses, a subclass can specify a slot that has 
already
        been specified for a superclass. When this happens, the information in 
slot
        options has to be combined. For the slot options listed above, either 
the
        option in the subclass overrides the one in the superclass or there is a
        union:

           :ACCESSOR  -  union
           :INITARG   -  union
           :INITFORM  -  overrides

Tbh, I'm not interested in the justification upon why 'things' are the way are 
in
goops now wrt this problem, let's save our energy here. I'd like 'things' to 
change
wrt this problem so we implement the clos protocol, ide4ally, that would happen 
in
guile-2.2 'already'.

Happy Hacking,
David

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