From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Experimental features Date: Sun, 24 Jun 2007 15:23:53 -0400 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1182713046 2189 80.91.229.12 (24 Jun 2007 19:24:06 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Sun, 24 Jun 2007 19:24:06 +0000 (UTC) Cc: emacs-devel@gnu.org To: rms@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Jun 24 21:24:03 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1I2Xgn-00020x-Sl for ged-emacs-devel@m.gmane.org; Sun, 24 Jun 2007 21:24:02 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1I2Xgn-0000vr-8B for ged-emacs-devel@m.gmane.org; Sun, 24 Jun 2007 15:24:01 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1I2Xgj-0000uC-Ge for emacs-devel@gnu.org; Sun, 24 Jun 2007 15:23:57 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1I2Xgh-0000pi-R4 for emacs-devel@gnu.org; Sun, 24 Jun 2007 15:23:57 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1I2Xgh-0000pe-Oq for emacs-devel@gnu.org; Sun, 24 Jun 2007 15:23:55 -0400 Original-Received: from tomts20.bellnexxia.net ([209.226.175.74] helo=tomts20-srv.bellnexxia.net) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1I2Xgg-0002C8-Nk; Sun, 24 Jun 2007 15:23:54 -0400 Original-Received: from ceviche.home ([74.12.206.238]) by tomts20-srv.bellnexxia.net (InterMail vM.5.01.06.13 201-253-122-130-113-20050324) with ESMTP id <20070624192353.SHLV1637.tomts20-srv.bellnexxia.net@ceviche.home>; Sun, 24 Jun 2007 15:23:53 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id B222FB4B9D; Sun, 24 Jun 2007 15:23:53 -0400 (EDT) In-Reply-To: (Richard Stallman's message of "Sun\, 24 Jun 2007 10\:41\:27 -0400") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1.50 (gnu/linux) X-detected-kernel: Solaris 8 (1) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:73767 Archived-At: > I know, but I think for example that the vc-bzr.el and vc-hg.el (and > potentially others, I hope we'll get vc-darcs.el soon) are somewhat > dangerous to add to Emacs-22.[23...] unless we disable them by > default: they're not 100% modular since they normally get involved > every time we open a file (in 99% of the cases they'll just bail > saying that they're not interested in this file, but still). > So just like we have obsolete features, we could have experimental > features, which are completely deactivated by default but can easily > be activated by the user. This might allow us to safely include a few > more new features in minor releases. > I see the point; maybe so. > I'll send a patch soon, to give a more concrete idea of my I'm > thinking of. Basically, I currently picture it as adding something > like a function (activate-experimental-feature ). > What is the benefit of this, over having a simple variable to control it? There are a few issues: 1 - sometimes a single `setq' is not enough to activate a feature. 2 - I like the idea of being able to list the experimental features. Stefan