From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Lennart Borgman <lennart.borgman@gmail.com>
Cc: 5371@debbugs.gnu.org
Subject: bug#5371: Priority of different kind of local variable bindings
Date: Wed, 13 Jan 2010 13:45:47 -0500 [thread overview]
Message-ID: <jwvbpgxetis.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <e01d8a51001130750y3e525a21p3a31108a4edb1f99@mail.gmail.com> (Lennart Borgman's message of "Wed, 13 Jan 2010 16:50:25 +0100")
>> What do you mean by "priority of different kind of local variables"?
> I just meant which value is active at a certain point.
It's not based on priorities.
> (with-temp-buffer
> (set (make-local-variable 'temp-var) "buffer-2")
> (temp-var-display "cc")
> (let ((temp-var "let"))
> (temp-var-display "dd")
> (kill-local-variable 'temp-var)
> (temp-var-display "ff"))
The `let' binding affects the currently "active" slot, so in this case
it affects the buffer-local slot. So after kill-local-variable, this
binding is lost.
Note that mixing let-binding and buffer-local bindings is generally
discouraged. The only known reasonably sane semantics for such a mix is
when the variable is always buffer-local. If you mix `let' with
make-local-variable and kill-local-variable you're really asking
for trouble.
Stefan
next prev parent reply other threads:[~2010-01-13 18:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-13 9:20 bug#5371: Priority of different kind of local variable bindings Lennart Borgman
2010-01-13 14:41 ` Stefan Monnier
2010-01-13 15:50 ` Lennart Borgman
2010-01-13 18:45 ` Stefan Monnier [this message]
2010-01-13 18:50 ` Lennart Borgman
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