From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Ihor Radchenko <yantar92@posteo.net>
Cc: dmitry@gutov.dev, Eli Zaretskii <eliz@gnu.org>,
mattias.engdegard@gmail.com, 66117@debbugs.gnu.org
Subject: bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers
Date: Sun, 17 Dec 2023 10:24:49 -0500 [thread overview]
Message-ID: <jwvsf40x3fh.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <8734w114pa.fsf@localhost> (Ihor Radchenko's message of "Sun, 17 Dec 2023 10:52:33 +0000")
>> Maybe I'm confused, but won't this change have at least _some_ effect
>> on Lisp programs? For example, what about this fragment from the
>> ELisp manual, which describes the effect of
>> make-variable-buffer-local:
>>
>> A peculiar wrinkle of this feature is that binding the variable
>> (with ‘let’ or other binding constructs) does not create a
>> buffer-local binding for it. Only setting the variable (with ‘set’
>> or ‘setq’), while the variable does not have a ‘let’-style binding
>> that was made in the current buffer, does so.
>>
>> Will this case work the same after the change as it did before?
>
> I read this differently - when you have
>
> (let ((var 'val))
> (make-variable-buffer-local 'var))
>
> it will not set buffer-local value to 'val.
So, what the paragraph above says is that
(setq var val)
will make `var` buffer-local, but
(let ((var val))
...)
will not and neither will
(let ((var val))
...
(setq var val2)
...)
IOW, `setq` makes the var buffer-local only when the assignment affects
the global binding.
The same holds for DEFVAR_PER_BUFFER variables like `case-fold-search`:
(with-temp-buffer
(let ((case-fold-search nil))
(list (local-variable-p 'case-fold-search)
(setq case-fold-search t)
(local-variable-p 'case-fold-search))))
==> (nil t nil)
-- Stefan
next prev parent reply other threads:[~2023-12-17 15:24 UTC|newest]
Thread overview: 162+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-20 8:53 bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers Ihor Radchenko
2023-09-22 1:36 ` Dmitry Gutov
2023-09-22 11:03 ` Ihor Radchenko
2023-09-22 12:11 ` Dmitry Gutov
2023-09-22 12:41 ` Ihor Radchenko
2023-09-22 12:59 ` Eli Zaretskii
2023-09-22 13:30 ` Ihor Radchenko
2023-09-22 14:57 ` Eli Zaretskii
2023-09-23 8:22 ` Ihor Radchenko
2023-09-23 8:57 ` Eli Zaretskii
2023-09-24 10:54 ` Ihor Radchenko
2023-09-24 12:50 ` Eli Zaretskii
2023-09-26 8:54 ` Ihor Radchenko
2023-09-26 14:18 ` Michael Albinus
2023-10-04 10:57 ` Ihor Radchenko
2023-09-26 11:11 ` Dmitry Gutov
2023-09-26 13:06 ` Ihor Radchenko
2023-09-27 23:30 ` Michael Heerdegen
2023-10-05 14:25 ` Ihor Radchenko
2023-09-29 7:30 ` Eli Zaretskii
2023-09-29 13:56 ` Ihor Radchenko
2023-09-29 16:12 ` Eli Zaretskii
2023-10-03 3:25 ` Michael Heerdegen
2023-10-03 6:00 ` Eli Zaretskii
2023-10-07 8:25 ` Ihor Radchenko
2023-10-07 8:48 ` Eli Zaretskii
2023-10-07 9:29 ` Ihor Radchenko
2023-10-07 10:57 ` Eli Zaretskii
2023-10-07 11:08 ` Ihor Radchenko
2023-10-07 11:24 ` Eli Zaretskii
2023-10-07 11:43 ` Ihor Radchenko
2023-10-07 12:05 ` Eli Zaretskii
2023-10-08 9:00 ` Ihor Radchenko
2023-10-08 9:56 ` Eli Zaretskii
2023-10-09 10:02 ` Ihor Radchenko
2023-10-09 10:16 ` Ihor Radchenko
2023-12-12 14:24 ` Ihor Radchenko
2023-12-12 14:49 ` Eli Zaretskii
2023-12-12 16:33 ` Ihor Radchenko
2023-12-12 17:26 ` Eli Zaretskii
2023-12-12 17:44 ` Ihor Radchenko
2023-12-12 18:36 ` Eli Zaretskii
2023-12-12 19:10 ` Dmitry Gutov
2023-12-12 19:16 ` Eli Zaretskii
2023-12-12 19:18 ` Ihor Radchenko
2023-12-12 19:20 ` Eli Zaretskii
2023-12-12 20:01 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-12 20:47 ` Dmitry Gutov
2023-12-12 22:57 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-12 23:40 ` Dmitry Gutov
2023-12-13 3:50 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-12 23:09 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-12 23:43 ` Ihor Radchenko
2023-12-12 23:47 ` Dmitry Gutov
2023-12-13 3:55 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-13 12:10 ` Eli Zaretskii
2023-12-13 13:06 ` Ihor Radchenko
2023-12-13 13:25 ` Eli Zaretskii
2023-12-13 13:43 ` Ihor Radchenko
2023-12-13 13:51 ` Eli Zaretskii
2023-12-13 14:12 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-13 14:58 ` Eli Zaretskii
2023-12-13 14:32 ` Ihor Radchenko
2023-12-13 15:22 ` Eli Zaretskii
2023-12-14 14:20 ` Ihor Radchenko
2023-12-14 16:40 ` Eli Zaretskii
2023-12-14 17:07 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-14 17:14 ` Eli Zaretskii
2023-12-14 18:11 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-14 18:30 ` Ihor Radchenko
2023-12-14 18:41 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-14 19:02 ` Ihor Radchenko
2023-12-14 19:36 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-15 11:01 ` Ihor Radchenko
2023-12-15 13:47 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-17 6:04 ` Eli Zaretskii
2023-12-17 6:11 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-17 8:30 ` Eli Zaretskii
2023-12-17 10:31 ` Ihor Radchenko
2023-12-17 10:36 ` Eli Zaretskii
2023-12-17 10:46 ` Eli Zaretskii
2023-12-17 10:56 ` Ihor Radchenko
2023-12-17 11:06 ` Eli Zaretskii
2023-12-17 11:19 ` Ihor Radchenko
2023-12-17 12:06 ` Eli Zaretskii
2023-12-19 13:24 ` Ihor Radchenko
2023-12-19 13:38 ` Eli Zaretskii
2023-12-20 20:33 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-21 5:56 ` Gerd Möllmann
2023-12-21 13:25 ` Ihor Radchenko
2023-12-21 13:39 ` Gerd Möllmann
2024-01-01 18:02 ` Ihor Radchenko
2024-01-01 19:39 ` Gerd Möllmann
2024-01-01 20:39 ` Ihor Radchenko
2024-01-02 4:43 ` Gerd Möllmann
2024-01-02 10:52 ` Ihor Radchenko
2024-01-02 11:08 ` Gerd Möllmann
2024-01-02 11:17 ` Ihor Radchenko
2024-01-02 11:48 ` Gerd Möllmann
2024-01-02 12:07 ` Ihor Radchenko
2024-01-02 12:07 ` Gerd Möllmann
2024-01-02 12:15 ` Ihor Radchenko
2024-01-02 12:57 ` Gerd Möllmann
2024-01-02 13:09 ` Ihor Radchenko
2024-01-02 13:28 ` Gerd Möllmann
2024-01-03 14:28 ` Gerd Möllmann
2024-01-02 1:30 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-01-02 11:00 ` Ihor Radchenko
2024-01-02 11:57 ` Gerd Möllmann
2024-01-02 12:11 ` Ihor Radchenko
2024-01-03 2:13 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-01-02 11:08 ` Ihor Radchenko
2024-01-02 14:08 ` Gerd Möllmann
2023-12-17 15:17 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-17 16:02 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-17 10:52 ` Ihor Radchenko
2023-12-17 11:01 ` Eli Zaretskii
2023-12-17 11:26 ` Ihor Radchenko
2023-12-17 12:14 ` Eli Zaretskii
2023-12-17 15:24 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2023-12-14 18:49 ` Eli Zaretskii
2023-12-14 19:49 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-14 20:24 ` Eli Zaretskii
2023-12-14 20:57 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-14 21:32 ` Dmitry Gutov
2023-12-14 23:03 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-14 19:15 ` Ihor Radchenko
2023-12-14 19:56 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-15 10:19 ` Ihor Radchenko
2023-10-08 11:16 ` Dmitry Gutov
2023-10-08 11:25 ` Ihor Radchenko
2023-10-08 11:44 ` Eli Zaretskii
2023-10-08 12:10 ` Ihor Radchenko
2023-10-08 12:28 ` Dmitry Gutov
2023-10-08 12:11 ` Dmitry Gutov
2023-10-08 12:20 ` Ihor Radchenko
2023-10-09 0:48 ` Dmitry Gutov
2023-12-23 8:54 ` Eli Zaretskii
2023-12-23 9:41 ` Ihor Radchenko
2023-12-23 11:16 ` Eli Zaretskii
2023-12-23 11:28 ` Ihor Radchenko
2023-12-23 11:51 ` Eli Zaretskii
2023-12-23 14:30 ` Ihor Radchenko
2023-12-30 7:39 ` Eli Zaretskii
2023-12-29 7:47 ` Eli Zaretskii
2023-12-29 13:55 ` Ihor Radchenko
2023-12-30 8:08 ` Eli Zaretskii
2023-12-30 9:50 ` Eli Zaretskii
2023-12-30 10:10 ` Eli Zaretskii
2023-12-30 10:39 ` Ihor Radchenko
2023-12-30 11:07 ` Eli Zaretskii
2023-12-30 12:51 ` Ihor Radchenko
2023-12-30 13:24 ` Eli Zaretskii
2024-01-01 17:11 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-22 13:02 ` Dmitry Gutov
2023-09-22 13:10 ` Eli Zaretskii
2023-09-22 13:38 ` Ihor Radchenko
2023-09-22 13:45 ` Dmitry Gutov
2023-10-04 10:58 ` Ihor Radchenko
2023-10-04 11:46 ` Dmitry Gutov
2023-10-05 11:27 ` Ihor Radchenko
2023-10-05 17:14 ` Dmitry Gutov
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