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: SRFI-1 in Scheme Date: Wed, 14 Jul 2010 00:44:17 +0200 Message-ID: <87sk3nt326.fsf@gnu.org> References: <8739vocnr0.fsf@gnu.org> <87hbk3uj8c.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: dough.gmane.org 1279061071 11260 80.91.229.12 (13 Jul 2010 22:44:31 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 13 Jul 2010 22:44:31 +0000 (UTC) Cc: guile-devel@gnu.org To: Andy Wingo Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Wed Jul 14 00:44:30 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 1OYoDF-0001sm-PQ for guile-devel@m.gmane.org; Wed, 14 Jul 2010 00:44:30 +0200 Original-Received: from localhost ([127.0.0.1]:37603 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OYoDF-0000LT-B1 for guile-devel@m.gmane.org; Tue, 13 Jul 2010 18:44:29 -0400 Original-Received: from [140.186.70.92] (port=55356 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OYoDA-0000H6-Nd for guile-devel@gnu.org; Tue, 13 Jul 2010 18:44:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OYoD9-0004X1-3f for guile-devel@gnu.org; Tue, 13 Jul 2010 18:44:24 -0400 Original-Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:42163) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OYoD8-0004Wr-Vc for guile-devel@gnu.org; Tue, 13 Jul 2010 18:44:23 -0400 X-IronPort-AV: E=Sophos;i="4.55,198,1278280800"; d="scan'208";a="55518862" Original-Received: from reverse-83.fdn.fr (HELO nixey) ([80.67.176.83]) by mail2-relais-roc.national.inria.fr with ESMTP/TLS/DHE-RSA-AES128-SHA; 14 Jul 2010 00:44:21 +0200 X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 26 Messidor an 218 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 In-Reply-To: (Andy Wingo's message of "Wed, 14 Jul 2010 00:27:53 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. 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:10661 Archived-At: Hey, Andy Wingo writes: > On Wed 14 Jul 2010 00:09, ludo@gnu.org (Ludovic Court=C3=A8s) writes: >> AFAICS the only difference between the two engine is VM_USE_HOOKS. >> Hooks are only used in (system vm coverage) at this point, so we don=E2= =80=99t >> lose much by disabling them. > > Tracing and call-counting profiling too. They will be used when stepping = soon. Right. To clarify, I=E2=80=99d enable the debug engine for interactive use, but no= t for =E2=80=98-s=E2=80=99, =E2=80=98-c=E2=80=99, and when a script is passed as = an argument (analogous to what 1.8 does with the evaluators.) Tracing and stepping are typically only used interactively, so that=E2=80= =99s OK. Coverage and profiling can start a new VM that suits their needs, =C3=A0 la =E2=80=98with-code-coverage=E2=80=99. So my impression is that the behavior above would usually have no drawbacks for the end user, in that it wouldn=E2=80=99t visibly reduce functionality. What do you think? Thanks, Ludo=E2=80=99.