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Subject: Re: Your wish list for Ada 202X
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Date: 2014-03-27T22:23:10-07:00
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On 27-Mar-14 15:06, Randy Brukardt wrote:
> #2 looks like lipstick on a pig to me - as you know my thinking on
> interfaces.

Why couldn't it all be done in such a manner as to avoid MI issues? 
Something like what we might use signature-packages for ensuring 
interfaces [functions/procedures] exist for some given type.

EX:
   generic
     Type Element;
     Type Implementation;
     Function Pop (Object : in out Implementation) return Element;
     Procedure Push (Object : in out Implementation; Item : Element);
     -- ...
   package STACK is
     --....
   end STACK;

being essentially the same as

   abstract interface Implementation is private;
     Function Pop (Object : in out Implementation) return Element;
     Procedure Push (Object : in out Implementation; Item : Element);
     -- ...

Though perhaps having a parameter of such an abstract-interface would 
make it prohibitive...