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From: Robert A Duff <bobduff@shell01.TheWorld.com>
Subject: Re: Generic package parameters not externally visible : what's the rational ?
Date: Tue, 27 Oct 2009 19:37:14 -0400
Date: 2009-10-27T19:37:14-04:00	[thread overview]
Message-ID: <wcc63a0xvbp.fsf@shell01.TheWorld.com> (raw)
In-Reply-To: hc7p47$pn7$1@news.tornevall.net

"Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org> writes:

> One possible rationale is:
>
> In order to reference the generic parameters from the instance, you have
> to have visibility of the instantiation. If you have visibility of the
> instantiation, then you have visibility of the generic actual parameters
> used in the instantiation. Therefore, you do not need visibility of the
> generic parameters from the instance,

I agree you don't need it (at least, in the Ada 83 cases).

>...so why complicate the language by
> providing it?

But I don't see why it complicates the language.  Seems like a wash in
Ada 83.  And in Ada 95/2005, I think the existing rule is slightly more
complicated (because it special-cases generic formal packages).

- BOb



  parent reply	other threads:[~2009-10-27 23:37 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-26  8:58 Generic package parameters not externally visible : what's the rational ? Hibou57 (Yannick Duchêne)
2009-10-26 11:05 ` Ludovic Brenta
2009-10-26 15:02   ` Robert A Duff
2009-10-27  1:06   ` Hibou57 (Yannick Duchêne)
2009-10-26 14:56 ` Robert A Duff
2009-10-27  3:03   ` Hibou57 (Yannick Duchêne)
2009-10-27 21:08   ` Randy Brukardt
2009-10-27 21:36     ` Jeffrey R. Carter
2009-10-27 22:03       ` Hibou57 (Yannick Duchêne)
2009-10-27 22:19         ` Jeffrey R. Carter
2009-10-28 19:07         ` Randy Brukardt
2009-10-29 12:18           ` Hibou57 (Yannick Duchêne)
2009-10-29 22:56             ` Randy Brukardt
2009-10-30  0:10               ` Hibou57 (Yannick Duchêne)
2009-10-27 22:04       ` Hibou57 (Yannick Duchêne)
2009-10-27 23:37       ` Robert A Duff [this message]
2009-10-27 23:41         ` Jeffrey R. Carter
2009-10-27 23:34     ` Robert A Duff
2009-10-28  2:19       ` Hibou57 (Yannick Duchêne)
2009-10-28 19:12         ` Randy Brukardt
2009-10-29  7:34           ` Stephen Leake
2009-10-29 12:21           ` Hibou57 (Yannick Duchêne)
2009-10-29 13:10             ` AdaMagica
2009-10-29 15:11               ` Georg Bauhaus
2009-10-29 19:28                 ` Jeffrey R. Carter
2009-10-29 20:27                   ` Georg Bauhaus
2009-10-30 10:30               ` Stephen Leake
2009-10-30 17:53             ` Ludovic Brenta
2009-10-31  2:10               ` Hibou57 (Yannick Duchêne)
2009-10-30  5:19           ` Hibou57 (Yannick Duchêne)
2009-10-28  9:09     ` Dmitry A. Kazakov
2009-10-28 19:19       ` Randy Brukardt
2009-10-29  8:36         ` Dmitry A. Kazakov
2009-10-29 23:03           ` Randy Brukardt
2009-10-30  8:51             ` Dmitry A. Kazakov
2009-10-30 10:25           ` Stephen Leake
2009-10-30 19:32             ` Dmitry A. Kazakov
2009-10-31  2:06               ` Hibou57 (Yannick Duchêne)
2009-10-31  9:14                 ` Dmitry A. Kazakov
2009-11-03  8:25                   ` Hibou57 (Yannick Duchêne)
2009-11-03  9:59                     ` Dmitry A. Kazakov
2009-11-05 10:38                       ` Hibou57 (Yannick Duchêne)
2009-11-05 11:00                         ` Dmitry A. Kazakov
2009-11-05 12:16                           ` Hibou57 (Yannick Duchêne)
2009-11-05 14:09                             ` Dmitry A. Kazakov
2009-11-06 12:19                               ` Hibou57 (Yannick Duchêne)
2009-11-06 13:27                                 ` Dmitry A. Kazakov
2009-10-31  2:08               ` Hibou57 (Yannick Duchêne)
2009-10-31 12:44               ` Stephen Leake
2009-11-01 11:37                 ` Dmitry A. Kazakov
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