Re: Should MI be supported (was: Can MI be supported?)

[Matthew Heaney <matthewjheaney@earthlink.net>]

Lionel.DRAGHI@fr.thalesgroup.com writes:

> | -----Message d'origine-----
> | De: Matthew Heaney [mailto:matthewjheaney@earthlink.net]
> ...
> | 
> | In my experience multiple views are more useful than mixins, but YMMV.
> | 
> OK, it depends probably on design habits.
> 
> To translate Hyman example, did you use multiple views to stick with
> his code, or because it's your "natural" choice?

Both.  The multiple views code is exactly the code a C++ compiler would
generate for you.

Bob Eachus showed how to use generic mixins to translate Hyman's example
into Ada95, but the classes in the C++ example didn't strike me as being
proper "mixin" classes.  Usually it's pretty obvious when a class is a
mixin.

So can you use generic mixins to effect MI in Ada95?  Probably, yes.
Did I think Bob's translation was very natural?  Not really, no.