> On Sep 8, 2015, at 4:43 PM, has <hengist.p...@virgin.net> wrote:
> 
> Yeah, the goal is for each app-specific glue to subclass the concrete library 
> classes (which provide the query-building and AE dispatch services using raw 
> four-char codes, and already work nicely in themselves), then use protocol 
> extensions to add the app-specific vars/funcs into those. So I don't have a 
> problem with mixing-in the base functionality as well; just wish swiftc felt 
> the same way as well. :p

Perhaps you don’t need to provide concrete library classes at all, but simply 
ask your app-specific glue to implement your protocols instead of subclassing 
anything?

Charles

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