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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Stupid question
Newsgroups: comp.lang.ada
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Date: Sat, 14 Apr 2007 09:25:57 +0200
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Date: 2007-04-14T09:25:03+02:00
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On Fri, 13 Apr 2007 18:39:52 -0500, Randy Brukardt wrote:

>> So it is possible to say 'with A.B' in the context of a compilation
>> unit if A is "only" a generic (as opposed to an instance)? Even in Ada
>> 95? Is there any example for that somewhere?
> 
> It's necessary to make children of generic packages work. Recall that a
> child of a generic must be a generic.  The original question included an
> example. (Personally, I think generic children aren't worth the trouble,
> both in the language definition and in implementation. YMMV.)

Ooch. Generics are painful enough. Without generic children they were just
unbearable. Passing 20+ generic instances through formal parameters is a
nightmare.

If Ada had constructs for composing and reusing declarative regions, one
could probably drop children, but it does not.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de