From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: Declaring a local dynamic variable?
Date: Tue, 24 Sep 2013 17:34:38 -0400 [thread overview]
Message-ID: <jwvvc1psy6u.fsf-monnier+gnu.emacs.help@gnu.org> (raw)
In-Reply-To: slrnl40q0l.31s.joostkremers@j.kremers4.news.arnhem.chello.nl
>>> If I purposefully use a local dynamic variable as in:
>> Use (defvar my-counter) at the file's top-level to indicate that this
>> variable is used in a way that relies on dynamic scoping.
> Is that preferable to putting the defvar inside the function definition
> where the variable is used dynamically?
Depends, but usually I recommend you put the defvar at top-level,
otherwise you have to put it at various places (everywhere it's
let-bound and everywhere where it's referenced).
Also, I strongly recommend those dynamically-scoped vars use a package
prefix, just like global variables (since they are fundamentally global
variables).
Stefan
next prev parent reply other threads:[~2013-09-24 21:34 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-20 9:52 Declaring a local dynamic variable? Joost Kremers
2013-09-20 12:30 ` Stefan Monnier
2013-09-20 14:54 ` Andreas Röhler
[not found] ` <mailman.2569.1379688787.10748.help-gnu-emacs@gnu.org>
2013-09-20 15:10 ` Barry Margolin
2013-09-20 16:34 ` Andreas Röhler
[not found] ` <mailman.2578.1379694764.10748.help-gnu-emacs@gnu.org>
2013-09-20 20:59 ` Barry Margolin
2013-09-21 5:49 ` Andreas Röhler
2013-09-23 16:19 ` Joost Kremers
[not found] ` <mailman.2622.1379742443.10748.help-gnu-emacs@gnu.org>
2013-09-21 11:31 ` Barry Margolin
2013-09-21 13:32 ` Andreas Röhler
[not found] ` <mailman.2638.1379770251.10748.help-gnu-emacs@gnu.org>
2013-09-22 3:49 ` Barry Margolin
2013-09-23 16:26 ` Joost Kremers
2013-09-23 21:17 ` Barry Margolin
2013-09-23 22:14 ` Joost Kremers
2013-09-24 0:03 ` Barry Margolin
2013-09-25 8:58 ` Joost Kremers
2013-09-22 17:11 ` Pascal J. Bourguignon
2013-09-23 16:17 ` Joost Kremers
2013-09-24 21:40 ` Stefan Monnier
2013-11-02 23:56 ` WJ
2013-11-03 1:42 ` WJ
[not found] ` <mailman.2566.1379680283.10748.help-gnu-emacs@gnu.org>
2013-09-23 16:11 ` Joost Kremers
2013-09-24 21:34 ` Stefan Monnier [this message]
2013-09-25 5:52 ` Andreas Röhler
2013-09-25 7:24 ` Stefan Monnier
2013-09-25 8:43 ` Joost Kremers
2013-09-25 12:26 ` Stefan Monnier
2013-10-12 16:54 ` Andreas Röhler
[not found] ` <mailman.3886.1381596756.10748.help-gnu-emacs@gnu.org>
2013-10-12 21:25 ` Kai Grossjohann
2013-10-13 8:12 ` Andreas Röhler
2013-10-13 13:37 ` Stefan Monnier
2013-10-13 17:41 ` Andreas Röhler
2013-10-13 19:56 ` Kai Großjohann
[not found] ` <mailman.2843.1380112007.10748.help-gnu-emacs@gnu.org>
2013-09-25 15:46 ` Barry Margolin
2013-09-25 18:53 ` Stefan Monnier
2013-09-27 9:53 ` Andreas Röhler
2013-09-27 13:15 ` Stefan Monnier
[not found] ` <mailman.2982.1380275511.10748.help-gnu-emacs@gnu.org>
2013-09-27 14:31 ` Barry Margolin
2013-09-27 18:48 ` Andreas Röhler
[not found] ` <mailman.3016.1380307597.10748.help-gnu-emacs@gnu.org>
2013-09-27 20:18 ` Pascal J. Bourguignon
2013-09-27 23:57 ` Stefan Monnier
2013-09-28 6:20 ` Andreas Röhler
2013-09-28 6:24 ` W. Greenhouse
2013-09-28 6:50 ` Andreas Röhler
2013-09-28 7:21 ` W. Greenhouse
[not found] ` <mailman.2873.1380135245.10748.help-gnu-emacs@gnu.org>
2013-09-26 0:06 ` Barry Margolin
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