From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Slot accessing issues in EIEIO Date: Thu, 07 May 2020 23:48:22 -0400 Message-ID: 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> <87k11nzvc2.fsf@bernoul.li> <87wo5nf7bv.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="16763"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Jonas Bernoulli , emacs-devel@gnu.org To: Zhu Zihao Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri May 08 05:49:08 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 1jWu0Z-0004GJ-Qi for ged-emacs-devel@m.gmane-mx.org; Fri, 08 May 2020 05:49:07 +0200 Original-Received: from localhost ([::1]:44754 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jWu0Y-0003Jk-Sr for ged-emacs-devel@m.gmane-mx.org; Thu, 07 May 2020 23:49:06 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35308) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jWtzu-0002gm-Ec for emacs-devel@gnu.org; Thu, 07 May 2020 23:48:26 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:32164) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jWtzt-0000Ea-Qh for emacs-devel@gnu.org; Thu, 07 May 2020 23:48:26 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id CF234804C9; Thu, 7 May 2020 23:48:24 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 0EEC2813D9; Thu, 7 May 2020 23:48:23 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1588909703; bh=GtrKxdMjx/lJ0+u8TJ4n+zLsLwMOa3HnmG+D9z3w26A=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=AsvND8ouNfnlPacQgswAi7TmEcXC0dn+sYeWGRfTtlifLn28taZDhBmTwhJcHWVAY KhHgzPX/0ja5H3lKpmeMTY6fR7R37JpM+d1LZ9oe4wyocMwX7bNHzxnK5NPIvWjZLE s6zNfFTHcb90LJ4moHWqCnpS5qtiwHnIpHz02ogHwYZ02PNv7EXy3US18N4RuJUzEX 2vlBQ1fqq1rKVQobpFilFpau+HomK8+9rZB0N+vFq0V4n9gtolwJjBDKYfMdsYYMY2 vmGZ39HoTpKrOrUb70eLuu/QRrMYMVN1x4ZhFWxTrp/bpMdQ1hiokjEGwQWbR+weM4 qvXq3LonrgPIg== Original-Received: from alfajor (unknown [216.154.3.202]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id C57631203E4; Thu, 7 May 2020 23:48:22 -0400 (EDT) In-Reply-To: <87wo5nf7bv.wl-all_but_last@163.com> (Zhu Zihao's message of "Fri, 08 May 2020 11:12:36 +0800") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/07 21:59:06 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-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:249241 Archived-At: > Maybe we can fix the eieio pattern of pcase. > > In this piece of code: > > (defclass test-class () ((slot))) > > (pcase (make-instance 'test-class) > ((eieio slot) > slot)) > ;; => unbound > > An unbound marker will be returned on the fly without running slot-unbound > in pcase with eieio pattern. Is it reasonable? It should likely obey the bound/unbond distinction, and call slot-missing when applicable, yes. Patch welcome. Stefan