From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.devel Subject: Re: Why is FUNC in cl-callf not allowed to be an expression? Date: Fri, 10 May 2019 13:32:53 +0200 Message-ID: <87pnoqtuhm.fsf@web.de> References: <874l631ek1.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="90905"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri May 10 13:34:14 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hP3n3-000NUS-0H for ged-emacs-devel@m.gmane.org; Fri, 10 May 2019 13:34:13 +0200 Original-Received: from localhost ([127.0.0.1]:41540 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hP3n1-0004gr-UT for ged-emacs-devel@m.gmane.org; Fri, 10 May 2019 07:34:11 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:39103) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hP3lx-0004gi-Dr for emacs-devel@gnu.org; Fri, 10 May 2019 07:33:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hP3lw-000302-LD for emacs-devel@gnu.org; Fri, 10 May 2019 07:33:05 -0400 Original-Received: from mout.web.de ([212.227.17.12]:36191) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hP3lw-0002zZ-BC for emacs-devel@gnu.org; Fri, 10 May 2019 07:33:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1557487975; bh=C7nD2YVHUVLhCpFtPtCCLNy9HqkDQ/JgTlGCSn5tLHE=; h=X-UI-Sender-Class:From:To:Cc:Subject:References:Date:In-Reply-To; b=TC1+m6vAKplMMZtVJ8IcTvK/oiqB6BgY+xm8lUV+s+ubXr3n5z6N4JVtAkrHQv6wp ZNdYhpmByedYvfF+88B9qFNuhH11WA2MT5lIoSNwMbP/U+pcxImPVCE1n9zYt2VvXA 6gteS6/U6krSmsWyiFM6SnrcovtTBuHXR8TPPpig= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Original-Received: from drachen.dragon ([88.66.186.107]) by smtp.web.de (mrweb103 [213.165.67.124]) with ESMTPSA (Nemesis) id 0LbrZ2-1gxfYx19AS-00jLek; Fri, 10 May 2019 13:32:55 +0200 In-Reply-To: (Stefan Monnier's message of "Thu, 09 May 2019 20:47:48 -0400") X-Provags-ID: V03:K1:o3+qnKOVJxjt1tdyTye+A3vuaCP8Zg5+9hmMxZ7q+tgkyWRGz+d Qz4fekrcrXryua04qS6SuzizU7FcrHkWYzNnYMaNbqTe9A5coH9vj2vadqsyXJ4EH/eXojR RttU2UUOJJ/ebHrTLkOOe+0LqgycTumzUh3iSFQ+/I5KwENtLY+dZCCnnm0DHjHxyPVLZ65 5aHMuE/wB1NjuvS/XQjpQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:2EJjpgQI0g0=:ziAnk4suywrVjodB9YHdlp b2b56gXpwvLgVz1NPVF0w5OpRNTAYJro/ahafWZh879cFY5DrtQvrw6E4qnW6tKKvCuv6n+EK 5Bbr9Um748z9Cca1TACZVe1Um3A/d830UGngnsck9pKvj6jz5SaOrU5ydGU4zQSGbBZusRWnL QCyCxvfcU4IdxGwtNYcuIy7L2pis0dg5tdN0RNiGX/xGIQTZJrwYsnMox0DdacC6ilUEr/OkI JttrZwt46tMVmiyrDAP6S7lB+pTKk3bzZDgr6m35Aia4oDM3ze1YFu7zZ9D9LZ/AMb+JEs5i4 53F30+RtqWTMHEWcZSEXyZezSYIOdtB/dCYeHCOQlWrIkqv7Laau/SRHw+PDFzwjvdIQ2ND0R 8YN+8/gI0T6T2rgqNLQ3P7A1vPenFUHbuR+51ujIweXJ4niL/U9nV4bh+go6LWFKyAYI9PXuc nRM1ONT0RsLpYDoY5nUKBiRIWbo3zYS2JKQDiinzlp7gZ3svnZtpylpwf27D3Bgk0wrmPyfmn 7O7nvPolVMTsZTiLR7a6ycDEGbnjXN3ivWt9ra7TzrLR+dxjjABFjnOMqbv2UoerPa4Ibg707 zJ8sKF1lL91PsrK51T5GBv3+sAHA5qDo1YZYMXwxu8j6KZcXTV5XxziAvwSn/SwyIE0/IUwnf kG0+epOhPIBfZWSfQGyedGymJu1HoDXPTTNsoWRdSIgw+UXTyhSJfjXtlUqpJmaYbMtwOUJiS TplnKG5KNLCuAsmehD+MvRP81MmhnljKhre7xqk+pSaeBHvSzHdzEK87ui6W6FM3TsITcBYc X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 212.227.17.12 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:236363 Archived-At: Stefan Monnier writes: > > (defmacro gv-callf (call &optional n) > > (gv-letplace (_getter setter) (nth (or n 1) call) > > (funcall setter call))) > > It's cute, tho I'm not too fond of specifying the place via a number, > personally, [I should use GETTER btw for more efficient code: (defmacro gv-callf (call &optional n) (unless n (setq n 1)) (gv-letplace (getter setter) (nth n call) (setf (nth n call) getter) (funcall setter call))) ] Yes, but still better than having it as part of the macro name as in cl-callf2... I don't have any better idea currently. We could still extend cl-callf however. Michael.