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bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexica
From: |
Eli Zaretskii |
Subject: |
bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding |
Date: |
Sat, 01 Feb 2020 09:48:19 +0200 |
> From: Mattias Engdegård <mattiase@acm.org>
> Date: Fri, 31 Jan 2020 21:51:48 +0100
> Cc: 39373@debbugs.gnu.org
>
> 'add-to-list' doesn't work on lexical variables because it's a plain
> function taking the variable symbol as argument. 'push' works on
> lexical variables since it is a macro that expands to direct
> variable reference and setq.
If that's the case, then why don't we say that loud and clear in the
ELisp manual? (The doc string of add-to-list has some vague
recommendation, not sure if it really talks about this aspect, but
that's definitely not enough for such a serious issue.)
And doesn't it mean we should audit all the gazillion uses of
add-to-list in our sources, and do that urgently?
> I should perhaps have included this in the commit message.
That would have definitely helped, thanks.
> We could sink the pushes to the leaves of the condition tree, if you prefer:
No, your original patch is fine, but please let's update the docs
ASAP.
Thanks.
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding,
Eli Zaretskii <=
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Drew Adams, 2020/02/01
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Mattias Engdegård, 2020/02/01
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Eli Zaretskii, 2020/02/01
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Stefan Monnier, 2020/02/01
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Mattias Engdegård, 2020/02/01
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Eli Zaretskii, 2020/02/01
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Mattias Engdegård, 2020/02/02
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Stefan Monnier, 2020/02/02
- bug#39373: 27.0.50; [PATCH] mode-local-print-bindings broken with lexical-binding, Mattias Engdegård, 2020/02/02