From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?Mattias_Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.devel Subject: Re: master 0cbcc62: 'assoc' is not side-effect-free; constprop its pure subset Date: Sun, 1 Nov 2020 10:39:33 +0100 Message-ID: References: <20201031133156.28415.87445@vcs0.savannah.gnu.org> <20201031133158.04C1220A1C@vcs0.savannah.gnu.org> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) 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="38480"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Nov 01 10:40:30 2020 Return-path: Envelope-to: ged-emacs-devel@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 1kZ9qg-0009vz-Hh for ged-emacs-devel@m.gmane-mx.org; Sun, 01 Nov 2020 10:40:30 +0100 Original-Received: from localhost ([::1]:49752 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kZ9qf-0001F9-KG for ged-emacs-devel@m.gmane-mx.org; Sun, 01 Nov 2020 04:40:29 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53542) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kZ9pv-0000S5-Ej for emacs-devel@gnu.org; Sun, 01 Nov 2020 04:39:43 -0500 Original-Received: from mail158c50.megamailservers.eu ([91.136.10.168]:37140 helo=mail51c50.megamailservers.eu) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kZ9ps-0004l2-Sq for emacs-devel@gnu.org; Sun, 01 Nov 2020 04:39:43 -0500 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1604223577; bh=05DQPuoWvhmxMf5+ns7SeSG1jR7S1XfpKWWM+K+bmLA=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=Lf4LGAHBQmWPtv7Ow2Q2POEc7J3PthOUgV8h9gAbgrw13XBsPrIpI1pdAiF3zUj65 8uIoUB8xQ+TKHFVDuXfGqr3cs4yfkRiXFj27xBvEtNkS7N9qu0NTSUESJqZFklaKmv qYdzuBJ1pdwXsnv5f2Xz7yefBYDp9i7jjJOdCOwU= Feedback-ID: mattiase@acm.or Original-Received: from [192.168.0.4] (c188-150-171-71.bredband.comhem.se [188.150.171.71]) (authenticated bits=0) by mail51c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 0A19dXeB011492; Sun, 1 Nov 2020 09:39:36 +0000 In-Reply-To: X-Mailer: Apple Mail (2.3445.104.17) X-CTCH-RefID: str=0001.0A782F1A.5F9E8259.0026, 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=2.3 cv=MOMeZ/Rl c=1 sm=1 tr=0 a=SF+I6pRkHZhrawxbOkkvaA==:117 a=SF+I6pRkHZhrawxbOkkvaA==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=iRZporoAAAAA:8 a=Px6gYpf39g1Y2IWAfVIA:9 a=CjuIK1q_8ugA:10 a=NOBgFS-JBQ2l-kSd6-zu:22 X-Origin-Country: SE Received-SPF: softfail client-ip=91.136.10.168; envelope-from=mattiase@acm.org; helo=mail51c50.megamailservers.eu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/01 04:39:37 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x (no timestamps) [generic] X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:258596 Archived-At: 31 okt. 2020 kl. 16.06 skrev Stefan Monnier : > Oh, indeed: nasty. `assoc` *was* side-effect-free until it grew its = new > `testfn` argument. We do have a number of functions that are pure or side-effect-free = unless given certain arguments. I suppose we could design a system that = encompasses these cases. Certainly wouldn't mind algebraic effect types!