From: David Kastrup <dak@gnu.org>
To: "Juanma Barranquero" <lekktu@gmail.com>
Cc: "山本和彦 Kazu Yamamoto" <kazu@iij.ad.jp>, emacs-devel@gnu.org
Subject: Re: unused local variables
Date: Fri, 30 Nov 2007 12:26:23 +0100 [thread overview]
Message-ID: <851wa80yao.fsf@lola.goethe.zz> (raw)
In-Reply-To: <f7ccd24b0711300245u4ff38350i3bae3623fdc4d5ab@mail.gmail.com> (Juanma Barranquero's message of "Fri, 30 Nov 2007 11:45:06 +0100")
"Juanma Barranquero" <lekktu@gmail.com> writes:
> On Nov 30, 2007 11:34 AM, 山本和彦 Kazu Yamamoto <kazu@iij.ad.jp> wrote:
>
>> I'm not sure the point of this example.
>
> The point of the example is (and I'm sure you know it) that dynamic
> variables can be used in ways that are not evident to the
> byte-compiler just by looking at the lexical scope where the dynamic
> variable is used...
>
>> What I want to say is that case-fold-search in the following example
>> is not warned with XEmacs because it is defined with 'defvar'.
>
> So, yes: what you propose is forcing `defvar' for dynamic variables
> used across function boundaries.
I am actually surprised that this is supposedly not already the case:
the (defvar xxx) construct has the sole purpose of silencing the byte
compiler as far as I remember.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
next prev parent reply other threads:[~2007-11-30 11:26 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-29 12:32 unused local variables Kazu Yamamoto
2007-11-29 15:31 ` Thien-Thi Nguyen
2007-11-30 0:23 ` Kazu Yamamoto
2007-11-30 9:22 ` Juanma Barranquero
2007-11-30 9:27 ` Kazu Yamamoto
2007-11-30 9:37 ` Juanma Barranquero
2007-11-30 9:59 ` David Kastrup
2007-11-30 10:14 ` Juanma Barranquero
2007-11-30 10:23 ` David Kastrup
2007-11-30 10:26 ` Juanma Barranquero
2007-11-30 10:36 ` David Kastrup
2007-11-30 10:49 ` Juanma Barranquero
2007-11-30 10:34 ` Kazu Yamamoto
2007-11-30 10:45 ` Juanma Barranquero
2007-11-30 11:26 ` David Kastrup [this message]
2007-11-30 11:39 ` Juanma Barranquero
2007-12-03 2:30 ` Kazu Yamamoto
2007-12-03 9:50 ` Juanma Barranquero
2007-12-03 10:03 ` Kazu Yamamoto
2007-11-30 15:10 ` Stefan Monnier
2007-11-30 15:31 ` Juanma Barranquero
2007-11-30 15:58 ` Stefan Monnier
2007-11-30 16:40 ` David Kastrup
2007-11-30 17:58 ` tomas
2007-11-30 18:07 ` Juanma Barranquero
2007-11-30 15:38 ` Juanma Barranquero
2007-11-30 15:59 ` Stefan Monnier
2007-11-30 18:11 ` Juanma Barranquero
2007-12-01 3:17 ` Stefan Monnier
2007-11-29 16:02 ` Stefan Monnier
2007-11-30 0:25 ` Kazu Yamamoto
2007-12-04 11:12 ` Katsumi Yamaoka
2007-12-04 15:28 ` Dan Nicolaescu
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