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: reload-module Date: Fri, 19 Nov 2010 23:38:16 +0100 Message-ID: <87oc9lvt0n.fsf@gnu.org> References: <1821146050.900955.1290113203703.JavaMail.root@zmbs1.inria.fr> <87y68qxq4q.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1290206327 899 80.91.229.12 (19 Nov 2010 22:38:47 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 19 Nov 2010 22:38:47 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Fri Nov 19 23:38:43 2010 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 4.69) (envelope-from ) id 1PJZbO-0008Ef-NO for guile-devel@m.gmane.org; Fri, 19 Nov 2010 23:38:42 +0100 Original-Received: from localhost ([127.0.0.1]:57071 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PJZbO-0001LO-7j for guile-devel@m.gmane.org; Fri, 19 Nov 2010 17:38:42 -0500 Original-Received: from [140.186.70.92] (port=34311 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PJZbH-0001LF-Fh for guile-devel@gnu.org; Fri, 19 Nov 2010 17:38:36 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PJZbG-0003LW-D7 for guile-devel@gnu.org; Fri, 19 Nov 2010 17:38:35 -0500 Original-Received: from lo.gmane.org ([80.91.229.12]:33249) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PJZbG-0003LA-3b for guile-devel@gnu.org; Fri, 19 Nov 2010 17:38:34 -0500 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1PJZbE-0008Ai-Ce for guile-devel@gnu.org; Fri, 19 Nov 2010 23:38:32 +0100 Original-Received: from yoda.fdn.fr ([80.67.169.18]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 19 Nov 2010 23:38:32 +0100 Original-Received: from ludo by yoda.fdn.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 19 Nov 2010 23:38:32 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 42 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: yoda.fdn.fr X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 29 Brumaire an 219 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: 83C4 F8E5 10A3 3B4C 5BEA D15D 77DD 95E2 EA52 ECF4 X-OS: x86_64-unknown-linux-gnu User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) Cancel-Lock: sha1:kQY01ZlzzWkqkrxIsmdAvD3LXWY= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) 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:11145 Archived-At: Hello, Andy Wingo writes: > On Thu 18 Nov 2010 22:45, ludo@gnu.org (Ludovic Courtès) writes: > >> Hello! >> >> "Andy Wingo" writes: >> >>> +(define (reload-module m) >>> + (let ((f (module-filename m))) >>> + (if f >>> + (save-module-excursion >>> + (lambda () >>> + ;; Re-set the initial environment, as in try-module-autoload. >>> + (set-current-module (make-fresh-user-module)) >>> + (primitive-load-path f) >>> + m)) >>> + ;; Though we could guess, we *should* know it. >>> + (error "unknown file name for module" m)))) >> >> What about adding >> >> (module-define-submodule! the-root-module (module-name m) >> (let ((x (make-module))) >> (set-module-name! x (module-name m)) >> x)) >> >> right before the ‘primitive-load-path’ call, such that the module is >> created anew, instead of being modified incrementally? > > That won't work, because it will result in new variables being created > for any new definitions, so old code that had cached the old variables > would no longer do what you expect. Hmm, right; ditto for those that have cached the module itself. Oh well... Thanks, Ludo’.