GNU bug report logs - #47992
27; 28; Phase out use of `equal` in `add-hook`, `remove-hook`

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Message #127 received at 47992 <at> debbugs.gnu.org (full text, mbox):

From: Richard Stallman <rms <at> gnu.org>
To: Arthur Miller <arthur.miller <at> live.com>
Cc: jakanakaevangeli <at> chiru.no, michael_heerdegen <at> web.de, mail <at> daniel-mendler.de,
 47992 <at> debbugs.gnu.org, monnier <at> iro.umontreal.ca, larsi <at> gnus.org
Subject: Re: bug#47992: 27; 28; Phase out use of `equal` in `add-hook`,
 `remove-hook`
Date: Wed, 07 Jul 2021 19:57:55 -0400

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  > If they are equal, why do they need to be distinguished?

If file A adds such a hook, then file B adds one that is the same,
then you unload file B, testing for "the same hook" would
leave none.  But A won't work right without its hook.

My scheme would put on two distinct but equivalent hooks,
then delete one of them, leaving the other in place.
In some cases, that's what you want.

-- 
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)

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