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.devel Subject: Re: vm branch now uses vm repl by default Date: Tue, 09 Sep 2008 23:01:56 +0200 Message-ID: <87bpyx9gor.fsf@gnu.org> References: <87y721btiy.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1220994157 25009 80.91.229.12 (9 Sep 2008 21:02:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 9 Sep 2008 21:02:37 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Tue Sep 09 23:03:33 2008 Return-path: Envelope-to: guile-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1KdAMx-0007vx-Qm for guile-devel@m.gmane.org; Tue, 09 Sep 2008 23:03:28 +0200 Original-Received: from localhost ([127.0.0.1]:47004 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KdALw-0007xH-TR for guile-devel@m.gmane.org; Tue, 09 Sep 2008 17:02:24 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KdALk-0007rU-OF for guile-devel@gnu.org; Tue, 09 Sep 2008 17:02:13 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KdALi-0007po-P2 for guile-devel@gnu.org; Tue, 09 Sep 2008 17:02:12 -0400 Original-Received: from [199.232.76.173] (port=50635 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KdALh-0007pI-OO for guile-devel@gnu.org; Tue, 09 Sep 2008 17:02:10 -0400 Original-Received: from main.gmane.org ([80.91.229.2]:34956 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 1KdALf-0005Vj-Q7 for guile-devel@gnu.org; Tue, 09 Sep 2008 17:02:08 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1KdALb-00085w-JA for guile-devel@gnu.org; Tue, 09 Sep 2008 21:02:03 +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 ; Tue, 09 Sep 2008 21:02:03 +0000 Original-Received: from ludo by reverse-83.fdn.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 09 Sep 2008 21:02:03 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 57 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: 24 Fructidor an 216 de la =?iso-8859-1?Q?R=E9volutio?= =?iso-8859-1?Q?n?= 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/22.3 (gnu/linux) Cancel-Lock: sha1:NyjhIlqr0xowprq1c+Z5qWnTRgs= X-detected-kernel: by monty-python.gnu.org: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:7649 Archived-At: Hello! Andy Wingo writes: > On Tue 09 Sep 2008 10:41, ludo@gnu.org (Ludovic Courtès) writes: > >> So, previously, there was `variable-ref': > > There still is. It is used when a variable is bound immediately, when it > is pushed on the stack by a link-now instruction. OK, I see. >> Now, there's also a vector associated with each closure to store >> references to global variables, right? Looks better! > > That's always been the case IIRC, only before it used to push and pop a > bit more -- instead of > > (late-variable-ref 0) > > it would be > > (object-ref 0) > (variable-ref) Oh, right. >> It'd be nice if we could find a way to "do something" with the >> `current-reader' fluid at compilation time, like detecting top-level >> `(fluid-set! current-reader ...)' statements and use that to switch the >> compiler's reader (hacky...). > > Perhaps, there is already a repl-reader fluid for readline's benefit. > Note also that languages have readers as well, so that e.g. elisp can > read differently from scheme. Right, but `current-reader' is a dynamic thing, which complicates the situation. A use case is the following: (define-module (foo)) (fluid-set! current-reader %my-favorite-reader) ;; use non-standard syntax extensions from now on I use it this way in Skribilo, but I may well be the only user, who knows. ;-) Anyway, if we are to handle this at all, we're probably going to have to pattern-match this in `translate.scm' and switch readers when we encounter it. Thanks, Ludo'.