From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: Always-true predicate? Date: Wed, 17 Feb 2021 13:40:14 +0100 Message-ID: <87zh02n9zl.fsf@gnus.org> References: <875z2qoqc6.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6184"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: emacs-devel@gnu.org To: Andrea Corallo Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Feb 17 13:43:47 2021 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 1lCMBG-0001TU-KX for ged-emacs-devel@m.gmane-mx.org; Wed, 17 Feb 2021 13:43:46 +0100 Original-Received: from localhost ([::1]:39846 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lCMBF-0008N3-JT for ged-emacs-devel@m.gmane-mx.org; Wed, 17 Feb 2021 07:43:45 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:59556) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lCM89-0006dj-Rm for emacs-devel@gnu.org; Wed, 17 Feb 2021 07:40:33 -0500 Original-Received: from quimby.gnus.org ([2a01:4f9:2b:f0f::2]:53586) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lCM85-00062f-3j for emacs-devel@gnu.org; Wed, 17 Feb 2021 07:40:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=6ELI72rHD/Lu9LzIdtdKnD5tYgVU/PJLdx4InAE8Qjw=; b=Y3jyNRJgUFoSef5N7mg+OQjg35 TrCBVkeGnU3g9x6UppiuRZDcqbU7bRD14jatAYP3Z9aC7ggNnfDfV8vkCKFnylFqnG7NiXWa5oNOW gy5of3UVBnQnLxsJhx3yAgjjFy9/00dlw2ER+w64L3ErbSCWDC6sxoAdY2/++OCTgttU=; Original-Received: from cm-84.212.202.86.getinternet.no ([84.212.202.86] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lCM7r-00007e-8l; Wed, 17 Feb 2021 13:40:25 +0100 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAElBMVEUcGxogHhsmIh0v KiFEOib///9JOwZRAAAAAWJLR0QF+G/pxwAAAAd0SU1FB+UCEQs5DBNfbXsAAAGmSURBVDjLxVPb keQgDJTwBCDBBgBiAzCIBPaY/GM6AWOP9zFXdV/LB2Wr6ZbUAoDfW/i/AL8AkF5K8b+BOHdHl5Tz a8OJeAdJngxvBLcIyWF6MgKgUxXxf7a9tlKIv/ZBACLKrDTibAzGJMwu7wBhJ61wADm0yhS0pqhb b6WKEA5BLMV2cWC/uQCKi2RVvdFWJILzNZNqAqzq3QJUtUl6ryr9XuVduzYVy2Td+RgfDTB7RLaV jIEoYZT0xaubSVktVorES3xVRQQOEOlwg03N+tAWXa0Wni2bxYiDEdCcyn24tc/j9JAyt4JZ8Tmz LavqXremXSRxXBnmGqZDllysgxTX6dkIbN6Eyjk5XOfZw9ve6tanUjrDUwqrr6GwFxs48gnBtoN1 rQ8dSqfU7eMem95NS3y0AiwoExi9JM724w0YsbXBZkMll3W24EowME7gJtpdb90S5ZC1V52fad6g sMcjp+oYgMi8XVhpWU4gGYke88DxTJimn07K4BHz8Qx42k0oK4YngHj1Ci/ANX7MfF3o59XmOZKf XuZB+/b8+AUArxiL8xeaUTbcszVHHwAAACV0RVh0ZGF0ZTpjcmVhdGUAMjAyMS0wMi0xN1QxMTo1 NzoxMiswMDowMJ14qYoAAAAldEVYdGRhdGU6bW9kaWZ5ADIwMjEtMDItMTdUMTE6NTc6MTIrMDA6 MDDsJRE2AAAAAElFTkSuQmCC X-Now-Playing: Telefon Tel Aviv's _Dreams Are Not Enough_: "still as stone in a watery fane." In-Reply-To: (Andrea Corallo's message of "Wed, 17 Feb 2021 12:31:57 +0000") Received-SPF: pass client-ip=2a01:4f9:2b:f0f::2; envelope-from=larsi@gnus.org; helo=quimby.gnus.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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:264996 Archived-At: Andrea Corallo writes: > Maybe something like CONSTANTLY would be more generic? > > I'm not sure that's a net win. The use case here is, for instance (defalias 'mouse-sel--ignore #'ignore) (defvar after-focus-change-function #'ignore etc, which is fast and easy to read. If you're doing a predicate, you now have to say (setq some-predicate #'ignore) but (setq some-predicate (lambda (&rest _) t)) or (setq some-predicate (constantly t)) which seems unsymmetric. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no