From: Joost Kremers <joostkremers@yahoo.com>
To: help-gnu-emacs@gnu.org
Subject: byte-compiler warnings
Date: 12 Sep 2010 18:12:53 GMT [thread overview]
Message-ID: <slrni8q66f.j1u.joostkremers@j.kremers4.news.arnhem.chello.nl> (raw)
hi all,
having upgraded to GNU Emacs 23.2.1, some of my elisp code that used to compile
without any messages now produces some warnings. the first is:
Function `copy-list' from cl package called at runtime
this one appears a couple of times, also for `gensym' and `evenp'.
i do require the cl package at compile time, but since copy-list, gensym and
evenp are functions, that of course doesn't help.
if i require the package at runtime, the byte compiler complains about it, too:
"cl package required at runtime"...
so isn't one supposed to use these functions at all, except in private code?
the second warning i get is:
`save-excursion' defeated by `set-buffer'
this applies to code chunks like the following:
(save-excursion
(set-buffer <some-buffe>
...
in each case, i can actually take out the save-excursion, i think, because the
save-excursion scopes until the end of the function it's in and that's where the
effect of set-buffer ends anyway. but it does make me curious, why this warning
never appeared in previous emacs versions. and looking at the elisp info files a
bit, i find that besides set-buffer there are also save-current-buffer and
with-current-buffer, which seem to do pretty much the same thing. anyone know
which function is preferred in which situation?
TIA
--
Joost Kremers joostkremers@yahoo.com
Selbst in die Unterwelt dringt durch Spalten Licht
EN:SiS(9)
next reply other threads:[~2010-09-12 18:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-12 18:12 Joost Kremers [this message]
-- strict thread matches above, loose matches on Subject: below --
2015-06-24 9:29 Byte-compiler warnings Marcin Borkowski
2015-06-24 23:50 ` Emanuel Berg
2015-06-25 12:56 ` Nicolas Richard
[not found] ` <mailman.5606.1435189903.904.help-gnu-emacs@gnu.org>
2015-06-25 3:06 ` Stefan Monnier
[not found] <mailman.5561.1435138202.904.help-gnu-emacs@gnu.org>
2015-06-24 11:27 ` Pascal J. Bourguignon
2015-06-25 1:52 ` Emanuel Berg
2015-06-25 2:30 ` Emanuel Berg
2015-06-25 3:19 ` Stefan Monnier
2015-06-25 3:42 ` Emanuel Berg
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