From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: EIEIO accessing class slots Date: Fri, 11 Jun 2021 10:23:39 -0400 Message-ID: References: <87eed9pwyi.fsf@riseup.net> <87mtrxnvp7.fsf@riseup.net> <87bl8dns8v.fsf@riseup.net> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36535"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:jvR/mNAGkdOL8qgCiAi16ejbORE= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jun 11 16:24:26 2021 Return-path: Envelope-to: geh-help-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 1lri5B-0009JO-81 for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 11 Jun 2021 16:24:25 +0200 Original-Received: from localhost ([::1]:34234 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lri59-0008VP-U7 for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 11 Jun 2021 10:24:23 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35002) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lri4d-0008VG-0j for help-gnu-emacs@gnu.org; Fri, 11 Jun 2021 10:23:51 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:41578) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lri4a-0007cD-AL for help-gnu-emacs@gnu.org; Fri, 11 Jun 2021 10:23:50 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1lri4Y-0008Pl-C0 for help-gnu-emacs@gnu.org; Fri, 11 Jun 2021 16:23:46 +0200 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:130757 Archived-At: >>> If you expect it to return the ((moirai-dired-p) ...) >>> you specified in the `defclass`, then why not do: >>> (defvar foo-bar '((moirai-dired-p) ...)) >>> so you can get this value without having to ask the class? >> Is that terrible to ask to the class ? > To the extent that it doesn't exist in CLOS, then I think it's better to > avoid using this functionality ;-) Another reason is that this is an undocumented behavior: `oref-default` is defined to return the value of class-allocated slots, not the "default value" of normal slots. Stefan