From: David Kastrup <dak@gnu.org>
To: emacs-devel@gnu.org
Subject: Re: `save-excursion' defeated by `set-buffer'
Date: Thu, 24 Dec 2009 10:03:55 +0100 [thread overview]
Message-ID: <87skb0iw04.fsf@lola.goethe.zz> (raw)
In-Reply-To: jwv7hsd0zg6.fsf-monnier+emacs@gnu.org
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
>>> Irrelevant: neither example uses (save-excursion (set-buffer ..) ...).
>> Don't be disingenuous. with-temp-buffer uses with-current-buffer, which
>> is basically (save-current-buffer (set-buffer ...
>
> save-current-buffer != save-excursion
>
> This warning is specificaly aimed at reminding people that the two are
> different, so you clearly need to see this warning a few more times
> before you start to understand what it's about.
And you clearly need to reread my post to understand what it's about.
If you macroexpand with-temp-buffer and save-current-buffer, my argument
still holds: the warning is wrong, and the macro-expanded code
explicitly uses all those commands which you claim are equivalent in
this situation, with different results.
--
David Kastrup
next prev parent reply other threads:[~2009-12-24 9:03 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-20 19:19 `save-excursion' defeated by `set-buffer' Roland Winkler
2009-12-21 15:26 ` Stefan Monnier
2009-12-21 16:23 ` David Kastrup
2009-12-22 12:51 ` martin rudalics
2009-12-23 0:45 ` Stefan Monnier
2009-12-23 9:07 ` David Kastrup
2009-12-24 4:35 ` Stefan Monnier
2009-12-24 9:03 ` David Kastrup [this message]
2009-12-29 16:01 ` Stefan Monnier
2010-01-04 9:09 ` Drew Adams
2010-01-04 18:30 ` Stefan Monnier
2010-01-05 20:17 ` David Kastrup
2010-01-06 0:02 ` Drew Adams
2010-01-06 4:20 ` Stefan Monnier
2010-01-06 8:07 ` David Kastrup
2010-01-06 8:57 ` Drew Adams
2010-01-10 4:57 ` Stefan Monnier
2010-01-10 8:12 ` David Kastrup
2010-01-10 21:43 ` Stefan Monnier
2010-01-11 8:24 ` David Kastrup
2010-01-11 9:21 ` martin rudalics
2010-01-11 16:50 ` Stefan Monnier
2010-01-10 17:03 ` Drew Adams
2010-01-10 4:51 ` Stefan Monnier
2010-01-10 15:58 ` Harald Hanche-Olsen
2010-01-10 18:05 ` martin rudalics
2010-01-10 18:06 ` Drew Adams
2010-01-10 19:44 ` Harald Hanche-Olsen
2009-12-24 14:04 ` Roland Winkler
2010-01-04 17:08 ` Davis Herring
2010-01-04 17:34 ` David Kastrup
2010-01-04 18:33 ` Stefan Monnier
-- strict thread matches above, loose matches on Subject: below --
2009-12-18 9:20 Eli Zaretskii
2009-12-18 15:29 ` Juanma Barranquero
2009-12-18 15:58 ` Thierry Volpiatto
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