From: gautier_niouzes@hotmail.com
Subject: Re: Why are Ada compilers difficult to write ?
Date: Wed, 20 Jun 2018 01:33:03 -0700 (PDT)
Date: 2018-06-20T01:33:03-07:00 [thread overview]
Message-ID: <786f4eec-5f1e-4bf2-b08a-18e8c1a1ba74@googlegroups.com> (raw)
In-Reply-To: <584564c2-9f64-4965-b045-535cdaf899c0@googlegroups.com>
The challenges are roughly the features that make the programmer's life easier: the burden is moved to the compiler writers.
You can begin with unconstrained types whose sizes are not known at compile-time. Then variables of unconstrained types which are sized on initialization. Then add exceptions. Add packages. Then generics (not just macros).
For the fun of it, you find a full Pascal-in-Pascal here:
http://www.moorecad.com/standardpascal/pascals.pas
...and a remote descendant here (HAC, +/- a Pascal with Ada syntax):
https://sourceforge.net/projects/hacadacompiler/
- none of the mentioned goodies like unconstrained types are present in HAC so far...
next prev parent reply other threads:[~2018-06-20 8:33 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 21:33 Why are Ada compilers difficult to write ? Vincent
2018-06-19 21:43 ` Paul Rubin
2018-06-19 22:11 ` Lucretia
2018-06-24 17:33 ` Paul Rubin
2018-06-24 17:39 ` Lucretia
2018-06-19 22:01 ` Jacob Sparre Andersen
2018-06-19 22:18 ` Lucretia
2018-06-21 14:02 ` Jacob Sparre Andersen
2018-06-21 17:20 ` Lucretia
2018-06-19 22:17 ` Lucretia
2018-06-19 22:34 ` Dan'l Miller
2018-06-22 13:01 ` Alejandro R. Mosteo
2018-06-20 8:33 ` gautier_niouzes [this message]
2018-06-20 15:54 ` Jeffrey R. Carter
2018-06-20 17:54 ` Dan'l Miller
2018-06-20 18:18 ` Dan'l Miller
2018-06-20 18:58 ` Luke A. Guest
2018-06-20 19:37 ` Dan'l Miller
2018-06-20 19:39 ` Dan'l Miller
2018-06-20 19:50 ` Dan'l Miller
2018-06-20 21:26 ` Luke A. Guest
2018-06-27 14:19 ` Olivier Henley
2018-06-27 15:34 ` Dan'l Miller
2018-06-27 16:26 ` Olivier Henley
2018-06-27 16:50 ` Dan'l Miller
2018-06-27 17:53 ` Olivier Henley
2018-06-27 18:49 ` Dan'l Miller
2018-06-28 11:54 ` Mehdi Saada
2018-06-29 3:34 ` Paul Rubin
2018-06-29 16:36 ` G. B.
2018-06-29 17:02 ` Dan'l Miller
2018-06-21 10:44 ` Marius Amado-Alves
2018-06-21 12:45 ` Dan'l Miller
2018-06-21 21:08 ` Paul Rubin
2018-06-21 21:42 ` Dan'l Miller
2018-06-21 22:01 ` Simon Wright
2018-06-21 23:04 ` Dan'l Miller
2018-06-22 0:20 ` Dan'l Miller
2018-06-22 3:41 ` Paul Rubin
2018-06-29 21:19 ` Randy Brukardt
2018-06-22 3:44 ` Paul Rubin
2018-06-22 21:57 ` Dan'l Miller
2018-06-22 23:15 ` Luke A. Guest
2018-06-23 1:03 ` Dan'l Miller
2018-06-23 1:49 ` Luke A. Guest
2018-06-23 2:54 ` Dan'l Miller
2018-06-23 14:48 ` Dennis Lee Bieber
2018-06-23 14:41 ` Dennis Lee Bieber
2018-06-25 5:55 ` Simon Clubley
2018-06-29 21:22 ` Randy Brukardt
2018-06-22 3:31 ` Paul Rubin
2018-06-22 16:44 ` antispam
2018-06-22 13:11 ` Lucretia
2018-06-22 17:10 ` Simon Clubley
2018-06-22 18:00 ` Lucretia
2018-06-25 5:48 ` Simon Clubley
2018-06-25 8:46 ` Alejandro R. Mosteo
2018-06-25 13:23 ` Lucretia
2018-06-25 17:24 ` Simon Clubley
2018-06-25 14:59 ` Dan'l Miller
2018-06-25 17:32 ` Simon Clubley
2018-06-29 21:26 ` Randy Brukardt
2018-06-23 5:56 ` J-P. Rosen
2018-06-23 12:44 ` Dan'l Miller
2018-06-23 16:14 ` Shark8
2018-06-23 18:12 ` Dan'l Miller
2018-06-23 18:47 ` Shark8
2018-06-23 19:35 ` Simon Wright
2018-06-25 8:51 ` Alejandro R. Mosteo
2018-06-24 13:41 ` Jacob Sparre Andersen
2018-06-25 6:04 ` Simon Clubley
2018-06-25 6:31 ` Jacob Sparre Andersen
2018-06-25 13:27 ` Lucretia
2018-06-25 20:07 ` Dirk Craeynest
2018-06-28 12:08 ` Vincent
2018-06-28 12:21 ` Simon Wright
2018-06-28 12:24 ` Luke A. Guest
2018-06-28 12:41 ` Dan'l Miller
2018-06-28 14:43 ` J-P. Rosen
2018-06-28 18:26 ` Dmitry A. Kazakov
2018-06-29 21:35 ` Randy Brukardt
2018-06-29 21:29 ` Randy Brukardt
2018-06-21 17:42 ` Pascal Obry
2018-06-21 20:18 ` Dan'l Miller
2018-06-22 5:01 ` J-P. Rosen
2018-06-22 7:16 ` Dmitry A. Kazakov
2018-06-22 11:46 ` Dan'l Miller
2018-06-22 12:11 ` Dmitry A. Kazakov
2018-06-22 12:35 ` Dan'l Miller
2018-06-22 15:55 ` Dmitry A. Kazakov
2018-06-29 21:43 ` Randy Brukardt
2018-06-25 15:33 ` Dan'l Miller
2018-10-01 18:09 ` Tucker Taft
2018-10-01 18:51 ` Lucretia
2018-10-02 12:58 ` Alejandro R. Mosteo
2018-10-02 14:23 ` Lucretia
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