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From: Dennison <dennison@iag.net>
Subject: Re: Two ideas for the next Ada standard
Date: 1996/09/05
Date: 1996-09-05T00:00:00+00:00	[thread overview]
Message-ID: <322F94E9.28C6@iag.net> (raw)
In-Reply-To: dewar.841911529@schonberg


Robert Dewar wrote:
> 
> T.E.D. asked, replying to me:
> 
> "> Two things we have considered adding as options to GNAT, which are not
> > extensions, merely source representation issues, are to allow the
> > private part to appear in a separate file, or to allow it to appear
> > in the body.
> 
> Wouldn't that make package bodies dependant on the BODIES of every package
> that they "with" (even indirectly)? It seems like that could really balloon
> compilation times. How would the inevitable circular dependancies be handled?"
> 
> Well you are dependent on bodies anyway if there is any inlining or any
> generic subprograms.

True, but only on the body of the inlined or generic subprogram. The proposed
change would make compilation units dependant on every spec and body "with"ed
in every spec AND BODY (recursively). In my experience, package bodies tend to
have a LOT more "with"'s than specs. Compilations that now take hours might end
up taking DAYS!

Then again, I guess there is a limiting factor (ie: the total # of specs and
bodies in the system). This would just drasticly increase the % of 
compilation units in the entire project that the average compilation unit
depends on.

-- 
email    - mailto:dennison@iag.net
homepage - http://www.iag.net/~dennison




  reply	other threads:[~1996-09-05  0:00 UTC|newest]

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1996-08-28  0:00 Two ideas for the next Ada standard Van Snyder
1996-08-29  0:00 ` Dale Stanbrough
1996-08-30  0:00   ` Robert A Duff
1996-08-30  0:00     ` Adam Beneschan
1996-08-31  0:00       ` Robert A Duff
1996-08-31  0:00         ` Robert Dewar
1996-09-04  0:00           ` Dennison
1996-09-05  0:00             ` Robert Dewar
1996-09-05  0:00               ` Dennison [this message]
1996-09-06  0:00                 ` Robert Dewar
1996-09-07  0:00                   ` Dennison
1996-09-07  0:00                     ` Robert Dewar
1996-09-06  0:00           ` Norman H. Cohen
1996-09-06  0:00             ` Robert Dewar
1996-09-06  0:00             ` Robert A Duff
1996-09-06  0:00               ` Robert Dewar
1996-09-09  0:00               ` Norman H. Cohen
1996-09-07  0:00             ` Keith Thompson
1996-09-12  0:00               ` Robert Dewar
1996-09-02  0:00         ` Geert Bosch
1996-09-02  0:00           ` Robert A Duff
1996-08-30  0:00 ` Peter Hermann
1996-08-30  0:00   ` Michael F Brenner
1996-08-30  0:00     ` Robert A Duff
1996-08-30  0:00       ` Robert Dewar
1996-08-31  0:00         ` Robert A Duff
1996-08-31  0:00           ` Robert Dewar
1996-09-01  0:00             ` Robert A Duff
1996-08-31  0:00   ` Robert Dewar
1996-09-01  0:00     ` Robert A Duff
1996-09-02  0:00 ` Laurent Guerby
1996-09-02  0:00   ` Robert Dewar
1996-09-03  0:00 ` Laurent Guerby
1996-09-03  0:00   ` Robert Dewar
1996-09-03  0:00 ` Laurent Guerby
1996-09-03  0:00   ` Robert Dewar
1996-09-04  0:00     ` Adam Beneschan
1996-09-06  0:00       ` private parts (was: Two ideas for the next Ada standard) Arthur Evans Jr
  -- strict thread matches above, loose matches on Subject: below --
1996-08-31  0:00 Re:Two ideas for the next Ada Standard dulman
1996-09-01  0:00 ` Two " Robert Dewar
1996-09-03  0:00   ` Jon S Anthony
1996-09-04  0:00     ` David Weller
1996-09-04  0:00     ` Joel VanLaven
1996-09-03  0:00   ` Larry Kilgallen
1996-09-03  0:00   ` Jonas Nygren
1996-09-03  0:00     ` Peter Hermann
1996-09-04  0:00       ` Robert Dewar
1996-09-04  0:00         ` Larry Kilgallen
1996-09-03  0:00     ` Richard A. O'Keefe
1996-09-03  0:00       ` Jonas Nygren
1996-09-03  0:00         ` Robert A Duff
1996-09-04  0:00         ` Robert Dewar
1996-09-04  0:00         ` Richard A. O'Keefe
1996-09-03  0:00       ` Robert A Duff
1996-09-03  0:00         ` Adam Beneschan
1996-09-03  0:00         ` Dale Stanbrough
1996-09-04  0:00           ` Two " Richard A. O'Keefe
1996-09-04  0:00         ` Robert Dewar
1996-09-04  0:00         ` Richard A. O'Keefe
1996-09-05  0:00           ` Robert Dewar
1996-09-06  0:00             ` Richard A. O'Keefe
1996-09-05  0:00           ` Robert A Duff
1996-09-06  0:00             ` Richard A. O'Keefe
1996-09-06  0:00               ` Robert Dewar
1996-09-10  0:00                 ` Richard A. O'Keefe
1996-09-10  0:00                   ` Mark A Biggar
1996-09-10  0:00                   ` Robert Dewar
1996-09-06  0:00               ` Robert A Duff
1996-09-10  0:00       ` Robert I. Eachus
1996-09-04  0:00     ` Robert Dewar
1996-09-04  0:00     ` Robert Dewar
1996-09-04  0:00   ` Jon S Anthony
1996-09-05  0:00     ` Mark A Biggar
1996-09-05  0:00     ` Robert A Duff
1996-09-04  0:00   ` Jonas Nygren
1996-09-06  0:00     ` Tucker Taft
1996-09-08  0:00     ` Jon S Anthony
1996-09-08  0:00       ` Robert Dewar
1996-09-09  0:00         ` John G. Volan
1996-09-09  0:00     ` Jon S Anthony
1996-09-04  0:00   ` Jon S Anthony
1996-09-04  0:00     ` Robert A Duff
1996-09-05  0:00   ` Robert I. Eachus
1996-09-06  0:00   ` Jon S Anthony
1996-09-07  0:00   ` Jonas Nygren
1996-09-08  0:00   ` Jon S Anthony
1996-09-08  0:00   ` Jon S Anthony
1996-09-08  0:00     ` Robert A Duff
1996-09-01  0:00 ` Robert Dewar
1996-09-05  0:00 ` Jon S Anthony
1996-09-06  0:00 ` Jon S Anthony
1996-09-06  0:00 ` Jon S Anthony
1996-09-10  0:00 ` Samuel Tardieu
1996-09-10  0:00 ` Norman H. Cohen
1996-09-11  0:00 ` Jon S Anthony
1996-09-04  0:00 Bob Mathis
1996-09-04  0:00 Marin David Condic, 407.796.8997, M/S 731-93
1996-09-06  0:00 ` Jon S Anthony
1996-09-06  0:00 Marin David Condic, 407.796.8997, M/S 731-93
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