From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: ludo@gnu.org (Ludovic =?iso-8859-1?Q?Court=E8s?=) Newsgroups: gmane.lisp.guile.user Subject: Re: Closure? Date: Wed, 16 Jul 2008 18:42:48 +0200 Message-ID: <87sku97pbr.fsf@gnu.org> References: <49dd78620807121543l3de15e61lc5777c6bd2b628f1@mail.gmail.com> <87bq0z37ef.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1216226610 26782 80.91.229.12 (16 Jul 2008 16:43:30 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 16 Jul 2008 16:43:30 +0000 (UTC) To: guile-user@gnu.org Original-X-From: guile-user-bounces+guile-user=m.gmane.org@gnu.org Wed Jul 16 18:44:18 2008 Return-path: Envelope-to: guile-user@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1KJA6m-0000H3-Hm for guile-user@m.gmane.org; Wed, 16 Jul 2008 18:44:04 +0200 Original-Received: from localhost ([127.0.0.1]:50094 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KJA5u-0005qt-29 for guile-user@m.gmane.org; Wed, 16 Jul 2008 12:43:10 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KJA5n-0005nR-1I for guile-user@gnu.org; Wed, 16 Jul 2008 12:43:03 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KJA5m-0005lf-3N for guile-user@gnu.org; Wed, 16 Jul 2008 12:43:02 -0400 Original-Received: from [199.232.76.173] (port=45617 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KJA5l-0005lI-Um for guile-user@gnu.org; Wed, 16 Jul 2008 12:43:01 -0400 Original-Received: from main.gmane.org ([80.91.229.2]:35958 helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1KJA5l-0007Tn-No for guile-user@gnu.org; Wed, 16 Jul 2008 12:43:01 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1KJA5g-00016z-52 for guile-user@gnu.org; Wed, 16 Jul 2008 16:42:56 +0000 Original-Received: from reverse-83.fdn.fr ([80.67.176.83]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 16 Jul 2008 16:42:56 +0000 Original-Received: from ludo by reverse-83.fdn.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 16 Jul 2008 16:42:56 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 14 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: reverse-83.fdn.fr X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 29 Messidor an 216 de la =?iso-8859-1?Q?R=E9volution?= X-PGP-Key-ID: 0xEA52ECF4 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 821D 815D 902A 7EAB 5CEE D120 7FBA 3D4F EB1F 5364 X-OS: i686-pc-linux-gnu User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux) Cancel-Lock: sha1:MQeVYJCSz7LoVLZ7jhpV5mntNhw= X-detected-kernel: by monty-python.gnu.org: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: guile-user-bounces+guile-user=m.gmane.org@gnu.org Errors-To: guile-user-bounces+guile-user=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.user:6667 Archived-At: Hey, Andy Wingo writes: > You can determine exactly what should be in the lexical environments at > compile-time; thus you can allocate a fixed structure of variables to > hold the lexicals. In addition, one expects constant-time access to local variables (aka. "ilocs"), which the current list-based closure representation fails to achieve (see `scm_ilookup ()'). Thanks, Ludovic.