From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eric Abrahamsen Newsgroups: gmane.emacs.devel Subject: Re: Compiler macro for apply-partially Date: Wed, 25 Aug 2021 11:44:34 -0700 Message-ID: <87a6l5bbzh.fsf@ericabrahamsen.net> References: <87a6l74abo.fsf@alphapapa.net> <87k0k9beqc.fsf@ericabrahamsen.net> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8757"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Adam Porter , emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Aug 25 20:45:14 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 1mIxth-0001yL-6i for ged-emacs-devel@m.gmane-mx.org; Wed, 25 Aug 2021 20:45:13 +0200 Original-Received: from localhost ([::1]:53100 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mIxtg-0001VX-5P for ged-emacs-devel@m.gmane-mx.org; Wed, 25 Aug 2021 14:45:12 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37404) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mIxt9-0000rF-GO for emacs-devel@gnu.org; Wed, 25 Aug 2021 14:44:39 -0400 Original-Received: from mail.ericabrahamsen.net ([52.70.2.18]:52600) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mIxt7-0002xJ-Q1 for emacs-devel@gnu.org; Wed, 25 Aug 2021 14:44:39 -0400 Original-Received: from localhost (c-73-109-4-106.hsd1.wa.comcast.net [73.109.4.106]) (Authenticated sender: eric@ericabrahamsen.net) by mail.ericabrahamsen.net (Postfix) with ESMTPSA id E54D5FA827; Wed, 25 Aug 2021 18:44:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ericabrahamsen.net; s=mail; t=1629917076; bh=WpXAGHDkRUVSdu8s1ofuTAbu7cRaQFUPRNQ9U02za3E=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=fyShXB41Ow0YLeYO3k3tnoCto+4MWcg8XrHX9Yh8eKpx33JWCldyexXrGJNZPI40t SuGF3E9wvTKyJ1thiiGtJiWt8U7ckfDHtux+m9mkY6Awr9aPobxrLR/Wj5DxZfjHZi UR5wHIWuiZLsE8UvcWIEv6MZus3MeErOYHH8UqgM= In-Reply-To: (Stefan Monnier's message of "Wed, 25 Aug 2021 14:27:32 -0400") Received-SPF: pass client-ip=52.70.2.18; envelope-from=eric@ericabrahamsen.net; helo=mail.ericabrahamsen.net X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-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:272988 Archived-At: Stefan Monnier writes: >> For us slower kids, this explicit approach might look like: >> >> (cl-flet ((curried (arg3) >> (function-to-apply-partially arg1 arg2 arg3))) >> (curried "arg3")) >> >> Either that or just plain `let' a lambda, and then `funcall' it? > > I just meant that instead of writing > > (apply-partially #'foo arg1 arg2) > > you write > > (lambda (arg3 &optional arg4 ...) > (foo arg1 arg2 arg3 arg4 ...)) > > A compiler macro can't easily do it for you because it's between hard > and impossible to automatically guess the (arg3 &optional arg4 ...) > part. Gotcha, thanks.