From: Visuwesh <visuweshm@gmail.com>
To: Ihor Radchenko <yantar92@gmail.com>
Cc: Lars Ingebrigtsen <larsi@gnus.org>, 57003@debbugs.gnu.org
Subject: bug#57003: 28.1.90; Can local variables be loaded before loading major mode?
Date: Sat, 06 Aug 2022 19:30:11 +0530 [thread overview]
Message-ID: <87h72pwjys.fsf@gmail.com> (raw)
In-Reply-To: <875yj5xzou.fsf@localhost> (Ihor Radchenko's message of "Sat, 06 Aug 2022 21:35:13 +0800")
[சனி ஆகஸ்ட் 06, 2022] Ihor Radchenko wrote:
> Lars Ingebrigtsen <larsi@gnus.org> writes:
>
>> Is the problem here that there are defvars in the major-mode file being
>> loaded that depend on one another? (I'm not sure I understand the
>> explanation in that bug report.)
>
> No.
>
> Let me try to explain a simple case when setting variables before/after
> loading Org mode matters.
>
> We have a variable org-startup-folded:
>
> Non-nil means entering Org mode will switch to OVERVIEW.
>
> This variable controls the initial state of the Org buffer.
> When, non-nil, headings will be folded at the end of Org initialization.
> This folding happens inside org-mode specification and hence setting the
> variable after Org mode is loaded makes no difference.
>
> There are also less trivial cases like some variables controlling Org
> parser. For example, we have org-todo-keywords. Its value controls how
> the headlines are parsed. Because Org parser is initialized during Org
> loading, setting this variable after loading Org mode can be simply
> disastrous.
Correct me if I'm wrong, this is about the major-mode definition
clearing the buffer's local variables before turning on the major-mode,
right? If so, I was hit by this for a personal package too where I
needed to expose a local variable for the major-mode-hook but failed
because the function created `define-derived-mode' clears the buffer
local variables before running the major-mode-hook and the major-mode's
BODY.
next prev parent reply other threads:[~2022-08-06 14:00 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-05 11:44 bug#57003: 28.1.90; Can local variables be loaded before loading major mode? Ihor Radchenko
2022-08-06 13:06 ` Lars Ingebrigtsen
2022-08-06 13:35 ` Ihor Radchenko
2022-08-06 14:00 ` Visuwesh [this message]
2022-08-06 14:34 ` Phil Sainty
2022-08-07 12:44 ` Lars Ingebrigtsen
2022-08-07 13:23 ` Ihor Radchenko
2022-08-07 13:30 ` Lars Ingebrigtsen
2022-08-07 13:52 ` Ihor Radchenko
2022-08-08 11:28 ` Lars Ingebrigtsen
2022-08-08 12:30 ` Ihor Radchenko
2022-08-08 12:35 ` Lars Ingebrigtsen
2022-08-08 12:58 ` Ihor Radchenko
2022-08-08 14:23 ` Lars Ingebrigtsen
2022-08-09 11:29 ` Ihor Radchenko
2022-08-12 12:38 ` Lars Ingebrigtsen
2022-08-13 1:33 ` Phil Sainty
2022-08-13 11:52 ` Lars Ingebrigtsen
2022-08-13 9:02 ` Ihor Radchenko
2022-08-13 11:55 ` Lars Ingebrigtsen
2022-08-13 12:22 ` Ihor Radchenko
2022-08-13 12:32 ` Lars Ingebrigtsen
2022-08-15 3:09 ` Richard Stallman
2022-08-15 3:15 ` Ihor Radchenko
2022-08-17 2:50 ` Richard Stallman
2022-08-17 10:08 ` Ihor Radchenko
2022-08-29 3:34 ` Richard Stallman
2022-08-31 3:29 ` Ihor Radchenko
2022-10-18 13:29 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-29 6:24 ` Ihor Radchenko
2022-10-29 14:40 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-30 2:57 ` Ihor Radchenko
2022-10-30 3:43 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-30 3:51 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-30 4:01 ` Ihor Radchenko
2022-10-30 12:30 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-31 3:08 ` Ihor Radchenko
2022-10-30 6:59 ` Ihor Radchenko
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