From: Elena <egarrulo@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: Lexical binding and macros.
Date: Wed, 15 Dec 2010 01:15:00 -0800 (PST) [thread overview]
Message-ID: <96134923-1314-4675-bd77-004945a7159e@y3g2000vbm.googlegroups.com> (raw)
In-Reply-To: jwvmxo73br7.fsf-monnier+gnu.emacs.help@gnu.org
On Dec 15, 4:24 am, Stefan Monnier <monn...@iro.umontreal.ca> wrote:
> >> ehm ... isn't "lexical-let" from the common lisp extension supposed to
> >> support closures?
> > They're not really closures.
>
> Actually, they are closures. Admittedly, they're not as efficient as
> one might like, but other than that, they work very well, thank you.
>
> Stefan
Do they still leak memory? From http://c2.com/cgi/wiki?EmacsLisp :
"Note that variables bound with lexical-let are never released, even
if they are never used. Try
(loop for i from 1 to 100000 collect (lexical-let ((x i)) '()))
and watch it eat memory. So making infinity (ZeroOneInfinity) lexical
variables is out of the question except for very small values of
infinity."
next prev parent reply other threads:[~2010-12-15 9:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.40.1292017369.4804.help-gnu-emacs@gnu.org>
2010-12-12 4:10 ` Lexical binding and macros Barry Margolin
2010-12-12 17:14 ` LanX
2010-12-12 17:23 ` Pascal J. Bourguignon
2010-12-15 4:24 ` Stefan Monnier
2010-12-15 9:15 ` Elena [this message]
2010-12-15 12:38 ` Pascal J. Bourguignon
2010-12-15 15:40 ` Stefan Monnier
2010-12-15 16:16 ` David Kastrup
2010-12-15 17:37 ` Pascal J. Bourguignon
2010-12-15 17:54 ` Elena
2010-12-16 21:59 ` Stefan Monnier
2010-12-10 21:42 Alin Soare
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