From: Richard Stallman <rms@gnu.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: psainty@orcon.net.nz, stefan@marxist.se,
monnier@iro.umontreal.ca, 58513@debbugs.gnu.org
Subject: bug#58513: describe-function should say that defconst variables are constant
Date: Sun, 16 Oct 2022 16:51:57 -0400 [thread overview]
Message-ID: <E1okAc1-0002zQ-D6@fencepost.gnu.org> (raw)
In-Reply-To: <875ygl5roe.fsf@gnus.org> (message from Lars Ingebrigtsen on Sat, 15 Oct 2022 12:04:17 +0200)
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> And then, in a later Emacs version, we could start enforcing the
> constness in running code.
defconst has had a subtle meaning: "It is ok to expect, in certain
limited ways, that the value will not be altered." Nothing more.
This change may seem to be fixing a bug, but some old programs used to
take advantage of the actual old meaning. This change might break
them.
I think that would be asking for trouble, and we have better things to
do than deal with that trouble.
--
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)
next prev parent reply other threads:[~2022-10-16 20:51 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-14 12:04 bug#58513: describe-function should say that defconst variables are constant Stefan Kangas
2022-10-14 12:23 ` Lars Ingebrigtsen
2022-10-14 12:35 ` Phil Sainty
2022-10-14 12:40 ` Lars Ingebrigtsen
2022-10-14 13:03 ` Stefan Kangas
2022-10-14 13:07 ` Lars Ingebrigtsen
2022-10-14 13:34 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-14 14:25 ` Lars Ingebrigtsen
2022-10-14 16:44 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-15 10:04 ` Lars Ingebrigtsen
2022-10-16 20:51 ` Richard Stallman [this message]
2022-10-16 21:11 ` Drew Adams
2022-10-17 5:41 ` Stefan Kangas
2022-10-17 10:41 ` Lars Ingebrigtsen
2022-10-15 12:33 ` Stefan Kangas
2022-10-15 14:11 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
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