From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: named-let Date: Tue, 12 Jan 2021 13:07:24 -0500 Message-ID: References: <87im86kub6.fsf@logand.com> <86zh1g62zx.fsf@163.com> <875z4385yd.fsf@logand.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8354"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Zhu Zihao , Tomas Hlavaty , emacs-devel@gnu.org To: Andrea Corallo Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Jan 12 19:29:29 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 1kzOQ5-00024y-Ru for ged-emacs-devel@m.gmane-mx.org; Tue, 12 Jan 2021 19:29:29 +0100 Original-Received: from localhost ([::1]:34594 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kzOQ4-00034n-7V for ged-emacs-devel@m.gmane-mx.org; Tue, 12 Jan 2021 13:29:28 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48882) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kzO4r-0001Hk-Cw for emacs-devel@gnu.org; Tue, 12 Jan 2021 13:07:33 -0500 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:21158) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kzO4n-00069I-Tr for emacs-devel@gnu.org; Tue, 12 Jan 2021 13:07:32 -0500 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 6D23080BAF; Tue, 12 Jan 2021 13:07:28 -0500 (EST) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 6A81D80810; Tue, 12 Jan 2021 13:07:26 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1610474846; bh=Eh6lNE4TxxaTEceNnwnFLJCvaxL5Ybyxhh7Z9Nz0o30=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=LU1FhfR1gbWC7TdMJvDO4tfUDmAWjmKJE9t0J49GapUwWerztVMn2cKd5hSO2Pn9Z 1ecyVtPaH6cJjK4n2llpbIKWaegcvNhwA/XEOeLoEvV0+p7QsW0q1q1g1iRzE8/ppe Te7+b9pNvNKQReG9gtSTPJ9SWATvbOmE9gGoYKk6nFeUH/SClEuKHwPF0OtMUa1gip zSTvK/AOaYlZMHm7ixzMSf+/ZjaVkSz8UPCmrMQaLMruQFjxzcClaPXM5Mvq1UDTsb gi1dvy/HJk01diSWsXMzvSAsoHzS2cUn+I3A/6rRxRo1GMjCszaId/KKNm50vhwtZj PpWCN/OVoxL8Q== Original-Received: from alfajor (unknown [45.72.224.181]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 2920212047F; Tue, 12 Jan 2021 13:07:26 -0500 (EST) In-Reply-To: (Andrea Corallo's message of "Tue, 12 Jan 2021 09:24:46 +0000") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca 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_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:263016 Archived-At: > As a side note I think we could have full TCO in Emacs, but at the cost > of a relatively invasive patch and a some (probably small but hard > to quantify a priori) performance regression. Not sure it is > sufficiently important to justify that. That's the question, indeed. Also, I have the impression that "full TCO" could be difficult if we consider the mixed case where a compiled function calls an interpreted function and vice-versa. Stefan