From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.bugs Subject: bug#50777: Dropping EIEIO from xref (for performance) Date: Sun, 26 Sep 2021 10:51:12 +0200 Message-ID: <1060904C-43A4-4981-9E29-5859AD9AB4A5@acm.org> References: <6b5b14d5-b2ca-8add-f4bf-a3405270c07a@yandex.ru> <508ef22b-02e2-c67b-3e34-be47d22f3328@yandex.ru> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.21\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9908"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 50777@debbugs.gnu.org, Stefan Monnier , Daniel =?UTF-8?Q?Mart=C3=ADn?= To: Dmitry Gutov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Sep 26 11:07:06 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mUQ7m-0002N0-1d for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 26 Sep 2021 11:07:06 +0200 Original-Received: from localhost ([::1]:51734 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mUQ7j-0003v5-VD for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 26 Sep 2021 05:07:04 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49926) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mUPtD-0008Kc-Ct for bug-gnu-emacs@gnu.org; Sun, 26 Sep 2021 04:52:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:52459) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mUPtC-0007NG-4R for bug-gnu-emacs@gnu.org; Sun, 26 Sep 2021 04:52:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mUPtB-0002N2-VU for bug-gnu-emacs@gnu.org; Sun, 26 Sep 2021 04:52:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 26 Sep 2021 08:52:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 50777 X-GNU-PR-Package: emacs Original-Received: via spool by 50777-submit@debbugs.gnu.org id=B50777.16326462859062 (code B ref 50777); Sun, 26 Sep 2021 08:52:01 +0000 Original-Received: (at 50777) by debbugs.gnu.org; 26 Sep 2021 08:51:25 +0000 Original-Received: from localhost ([127.0.0.1]:35771 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mUPsb-0002M6-5Q for submit@debbugs.gnu.org; Sun, 26 Sep 2021 04:51:25 -0400 Original-Received: from mail1464c50.megamailservers.eu ([91.136.14.64]:42732 helo=mail268c50.megamailservers.eu) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mUPsY-0002Lp-Rd for 50777@debbugs.gnu.org; Sun, 26 Sep 2021 04:51:24 -0400 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1632646275; bh=xzFvayywh7J82snlMZc6N8/1/xW3MW8a7siDE0X9qLQ=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=PAuiQ+i8RnPxUEm9ZaC0ls0S4qMuqtIYoWK3Nru9dlXG4465KTQc5WDks6tX6xPIm qjFM6lcPhduEgFMHNwqfEKdVe4zoYTIMGX1+g47cO6d7cXDbhT6YxJ7xS4/5791J56 8QJAtK435sg36EqDJxrp2HKtcU7vyIO09JdPdBYA= Feedback-ID: mattiase@acm.or Original-Received: from [192.168.0.4] (c188-150-171-71.bredband.tele2.se [188.150.171.71]) (authenticated bits=0) by mail268c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 18Q8pCeY009681; Sun, 26 Sep 2021 08:51:14 +0000 In-Reply-To: <508ef22b-02e2-c67b-3e34-be47d22f3328@yandex.ru> X-Mailer: Apple Mail (2.3445.104.21) X-CTCH-RefID: str=0001.0A742F1C.61503483.0037, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.4 cv=QcUFAuXv c=1 sm=1 tr=0 ts=61503483 a=SF+I6pRkHZhrawxbOkkvaA==:117 a=SF+I6pRkHZhrawxbOkkvaA==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=vaJtXVxTAAAA:8 a=HrfVorVYT8mNPzdq544A:9 a=CjuIK1q_8ugA:10 X-Origin-Country: SE X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:215577 Archived-At: 26 sep. 2021 kl. 03.15 skrev Dmitry Gutov : > (void-function make-closure) >=20 > was a much bigger problem. This is apparently how lambdas are compiled = now. There are no circumstances under which Emacs 28 bytecode is guaranteed = to work in earlier Emacs versions: there is backward but no forward = compatibility. For example, any code using `with-temp-buffer` won't = work, nor as you noticed anything creating closures. This is unavoidable and the alternative would be much worse, but it's = sometimes annoying when testing code with different versions and (in = particular) installing packages using a new version and then using an = old one. Could we arrange the .el file to be used if the .elc is built with a = newer Emacs version? (Perversely, it would make some inlined functions = faster...) An alternative would be to segregate installed packages by (major) = version, so that ~/.emacs.d/ has separate installations for Emacs 26, = 27, 28 and so on.