From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Aliasing EQ to EQL Date: Mon, 18 Jun 2018 09:56:51 -0400 Message-ID: References: <5e08587a56ad528599ed5fb259be6335.squirrel@dancol.org> <83muw5vdtr.fsf@gnu.org> <83zhzvyqfy.fsf@gnu.org> <83lgbezs6q.fsf@gnu.org> <6b522145569975d52266e29e8122e86b.squirrel@dancol.org> <50a1e0f98f6cfc5e55fdc2b7df5000b5.squirrel@dancol.org> <49478aa579597ea6557a3976779a234a.squirrel@dancol.org> <1c706afb-47c7-a8a7-3d3c-d4c8ea95cf70@cs.ucla.edu> <1e7cc051e1478a9e8ac77647617a612f.squirrel@dancol.org> <03af3e3ab2b22bf1a77aef94d659808d.squirrel@dancol.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1529330151 4520 195.159.176.226 (18 Jun 2018 13:55:51 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 18 Jun 2018 13:55:51 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: emacs-devel@gnu.org To: "Daniel Colascione" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Jun 18 15:55:46 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fUudG-0000xH-LI for ged-emacs-devel@m.gmane.org; Mon, 18 Jun 2018 15:55:46 +0200 Original-Received: from localhost ([::1]:34906 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fUufI-0004gt-SV for ged-emacs-devel@m.gmane.org; Mon, 18 Jun 2018 09:57:52 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34918) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fUueT-0004f9-Er for emacs-devel@gnu.org; Mon, 18 Jun 2018 09:57:02 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fUueQ-00005l-Dg for emacs-devel@gnu.org; Mon, 18 Jun 2018 09:57:01 -0400 Original-Received: from chene.dit.umontreal.ca ([132.204.246.20]:44009) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fUueQ-0008WU-8K for emacs-devel@gnu.org; Mon, 18 Jun 2018 09:56:58 -0400 Original-Received: from ceviche.home (lechon.iro.umontreal.ca [132.204.27.242]) by chene.dit.umontreal.ca (8.14.7/8.14.1) with ESMTP id w5IDvMKa027091; Mon, 18 Jun 2018 09:57:23 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id 68F246611F; Mon, 18 Jun 2018 09:56:51 -0400 (EDT) In-Reply-To: <03af3e3ab2b22bf1a77aef94d659808d.squirrel@dancol.org> (Daniel Colascione's message of "Sun, 17 Jun 2018 20:48:04 -0700") X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 2 Rules triggered EDT_SA_DN_PASS=0, RV6310=0 X-NAI-Spam-Version: 2.3.0.9418 : core <6310> : inlines <6702> : streams <1790045> : uri <2660263> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 132.204.246.20 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:226452 Archived-At: > Maybe once we have a JIT and can reasonably infer in the right context > that in order to implement EQL-comparison, we need just check object > identity. [ Hmm... technically, in my dictionary, `eql` checks object identity and `eq` checks pointer equality. ] Not sure which will be the driving force, but I'd be surprised if 20 years from now we still have `eq` different from `eql`. Stefan