From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Jonas Bernoulli Newsgroups: gmane.emacs.devel Subject: Re: Slot accessing issues in EIEIO Date: Thu, 07 May 2020 16:16:54 +0200 Message-ID: <87h7wrzv6x.fsf@bernoul.li> References: <87a72lhf3b.wl-all_but_last@163.com> <878si5gmt7.wl-all_but_last@163.com> <877dxoh1m6.wl-all_but_last@163.com> <874kssgzrf.wl-all_but_last@163.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="71597"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Stefan Monnier , Zhu Zihao Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu May 07 16:20:30 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 1jWhO0-000IWI-Um for ged-emacs-devel@m.gmane-mx.org; Thu, 07 May 2020 16:20:28 +0200 Original-Received: from localhost ([::1]:47516 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jWhNz-0001o0-SY for ged-emacs-devel@m.gmane-mx.org; Thu, 07 May 2020 10:20:28 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40538) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jWhKa-00088d-T3 for emacs-devel@gnu.org; Thu, 07 May 2020 10:16:56 -0400 Original-Received: from mail.hostpark.net ([212.243.197.30]:54644) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jWhKa-0004Ko-24 for emacs-devel@gnu.org; Thu, 07 May 2020 10:16:56 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by mail.hostpark.net (Postfix) with ESMTP id D0387165C3; Thu, 7 May 2020 16:16:54 +0200 (CEST) X-Virus-Scanned: by Hostpark/NetZone Mailprotection at hostpark.net Original-Received: from mail.hostpark.net ([127.0.0.1]) by localhost (mail1.hostpark.net [127.0.0.1]) (amavisd-new, port 10124) with ESMTP id r_rTYCMaMdP0; Thu, 7 May 2020 16:16:54 +0200 (CEST) Original-Received: from customer (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.hostpark.net (Postfix) with ESMTPSA id 5BC37165DD; Thu, 7 May 2020 16:16:54 +0200 (CEST) In-Reply-To: Received-SPF: none client-ip=212.243.197.30; envelope-from=jonas@bernoul.li; helo=mail.hostpark.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/07 09:44:46 X-ACL-Warn: Detected OS = ??? X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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:249179 Archived-At: Stefan Monnier writes: >> When we put the sync logic in slot-missing. How to distinguish really >> missing slots and "simulated slots" is a problem. > > Maybe another approach is to rely on the `slot-unbound` notion: when > a slot is not in-sync, mark it unbound so any access to it will call the > generic function `slot-unbound`. I don't think this would support > write-access via closql (or at least I can't see how that could be used > to catch modification of the object slot to propagate them to the DB). ;D See reply to sibling. (You pretty much got it figure out.)