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bug#55205: 28.1.50; completion--replace illegally mutates completion can
From: |
Stefan Monnier |
Subject: |
bug#55205: 28.1.50; completion--replace illegally mutates completion candidates |
Date: |
Mon, 02 May 2022 12:34:28 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
> I have no idea. The way you present this is waaay above my level of
> understanding.
>
> Completion takes text typed by the user and produces strings that the
> user could possibly mean by typing what he/she typed. Some part(s) of
> the candidates can legitimately come from what the user typed, some
> other part(s) could be invented by the completion machinery more or
> less out of thin air. Why should anyone expect this meat-grinder to
> refrain from destructively modifying any of the involved strings?
Because the overwhelming majority of strings are never modified.
It's very unusual to modify a string by side effect (as opposed to
creating a new string object via `concat`, `substring`, ...).
This is true in most languages, AFAICT, but it's definitely true in
ELisp.
Stefan
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Daniel Mendler, 2022/05/01
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Lars Ingebrigtsen, 2022/05/01
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Eli Zaretskii, 2022/05/01
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Dmitry Gutov, 2022/05/01
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Eli Zaretskii, 2022/05/01
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Dmitry Gutov, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Eli Zaretskii, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Dmitry Gutov, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Stefan Monnier, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Eli Zaretskii, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates,
Stefan Monnier <=
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Daniel Mendler, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Eli Zaretskii, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Eli Zaretskii, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Daniel Mendler, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Eli Zaretskii, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Daniel Mendler, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Eli Zaretskii, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Daniel Mendler, 2022/05/02
- bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Stefan Monnier, 2022/05/02
bug#55205: 28.1.50; completion--replace illegally mutates completion candidates, Daniel Mendler, 2022/05/01