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#42147: 28.0.50; pure vs side-effect-free, missing optimizations? Date: Sat, 25 Jul 2020 23:54:29 +0200 Message-ID: <1213DD41-01F9-4605-8D32-D750B6CE2B35@acm.org> References: <3A9CC2A3-8307-47B2-8D80-795C0AF020E1@acm.org> <0433A879-C98D-4B1A-B85C-A15DA9289099@acm.org> <1621669100.2102667.1593639091621@mail.yahoo.com> <33C2E2C8-16A6-47A9-B3A4-8A5F43648E04@acm.org> <51FE77F3-CA05-459A-9601-9E1EEBC1E2FE@acm.org> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.15\)) 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="28430"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Philipp Stephani , Paul Eggert , Andrea Corallo , 42147@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jul 25 23:55:11 2020 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 1jzS8M-0007I7-NO for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 25 Jul 2020 23:55:11 +0200 Original-Received: from localhost ([::1]:56598 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jzS8L-0001IA-Q8 for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 25 Jul 2020 17:55:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36110) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jzS8E-0001Hr-7j for bug-gnu-emacs@gnu.org; Sat, 25 Jul 2020 17:55:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:39743) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jzS8D-0002bT-VY for bug-gnu-emacs@gnu.org; Sat, 25 Jul 2020 17:55:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jzS8D-0004on-Tw for bug-gnu-emacs@gnu.org; Sat, 25 Jul 2020 17:55:01 -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: Sat, 25 Jul 2020 21:55:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 42147 X-GNU-PR-Package: emacs Original-Received: via spool by 42147-submit@debbugs.gnu.org id=B42147.159571409218501 (code B ref 42147); Sat, 25 Jul 2020 21:55:01 +0000 Original-Received: (at 42147) by debbugs.gnu.org; 25 Jul 2020 21:54:52 +0000 Original-Received: from localhost ([127.0.0.1]:51289 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jzS83-0004oL-Ol for submit@debbugs.gnu.org; Sat, 25 Jul 2020 17:54:51 -0400 Original-Received: from mail1438c50.megamailservers.eu ([91.136.14.38]:43104 helo=mail263c50.megamailservers.eu) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jzS80-0004o4-Lj for 42147@debbugs.gnu.org; Sat, 25 Jul 2020 17:54:50 -0400 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1595714073; bh=UBnbMSitYG3NF2lZMDRZMjGbGZWWRcej/AVCGl4HYN4=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=evVbUb26CbGllcrlKF9pV68ZhcFZbNskT7/b+cT+2eBAupqWpfNOLJdp125KB77mr KB4/Hbt2mNdED9pfmsY67s6yGOJpFKn+Sjy2V/Q6NtuH6Ttw0EJ8CUtvs/it3V82A2 d1VixypWFvMWb9Vif+w7GVISOao94EjRdrRksFVA= Feedback-ID: mattiase@acm.or Original-Received: from stanniol.lan (c-4e4ae655.032-75-73746f71.bbcust.telenor.se [85.230.74.78]) (authenticated bits=0) by mail263c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 06PLsU68017628; Sat, 25 Jul 2020 21:54:31 +0000 In-Reply-To: X-Mailer: Apple Mail (2.3445.104.15) X-CTCH-RefID: str=0001.0A782F15.5F1CAA19.0022:SCFSTAT68638221, ss=1, re=-4.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: -4.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=e6d4tph/ c=1 sm=1 tr=0 a=klNLuyVZdLUgl+K5Uafb2A==:117 a=klNLuyVZdLUgl+K5Uafb2A==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=iRZporoAAAAA:8 a=mgLsKegD02P0Ntt6NW4A:9 a=CjuIK1q_8ugA:10 a=NOBgFS-JBQ2l-kSd6-zu:22 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:183557 Archived-At: 25 juli 2020 kl. 23.29 skrev Stefan Monnier : >=20 >> There are also some functions declared 'pure' that appear to have = side >> effects: kbd, package-get-version >=20 > Which side-effects are you thinking of? They both clobber the match data. Not that it matters for the purpose of = compile-time evaluation, but we were discussing exact definitions. ('package-get-version' does a lot more but at least it admits to lying = in a comment, so I suppose that's all right then.)