GNU bug report logs - #59793
29.0.60; subr.elc is not compiled correctly

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Package: emacs;

Reported by: Feng Shu <tumashu <at> 163.com>

Date: Sat, 3 Dec 2022 07:26:02 UTC

Severity: normal

Tags: notabug

Found in version 29.0.60

Done: Stefan Kangas <stefankangas <at> gmail.com>

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: miha <at> kamnitnik.top
Cc: tumashu <at> 163.com, akib <at> disroot.org, 59793 <at> debbugs.gnu.org
Subject: bug#59793: 29.0.60; subr.elc is not compiled correctly
Date: Sun, 04 Dec 2022 19:35:17 +0200

> From: miha <at> kamnitnik.top
> Cc: tumashu <at> 163.com, 59793 <at> debbugs.gnu.org
> Date: Sun, 04 Dec 2022 18:27:07 +0100
> 
> In Emacs 29.0.50, I checked M-x disassemble RET insert-for-yank-1 RET
> and it looks like it uses an 'insert' bytcode operation instead of
> funcalling the 'insert' function. I think this is what prevents
> overriding of 'insert' from working on byte-compiled code, as explained
> in '(elisp) Advice and Byte Code'.

Of course!  And the same can happen with other function calls that the byte
compiler converts into bytecode operations.

That is why this technique is unreliable and shouldn't be used.
This bug report was last modified 1 year and 252 days ago.

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