From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andrea Corallo Newsgroups: gmane.emacs.devel Subject: Re: Declaring Lisp function types Date: Tue, 26 Mar 2024 06:13:26 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3690"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Eli Zaretskii , Stefan Kangas , Adam Porter , Stefan Monnier , Arthur Miller To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Mar 26 11:14:26 2024 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 1rp3p3-0000oV-Ui for ged-emacs-devel@m.gmane-mx.org; Tue, 26 Mar 2024 11:14:26 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rp3oJ-0001AK-RW; Tue, 26 Mar 2024 06:13:39 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rp3oH-0001A7-1v for emacs-devel@gnu.org; Tue, 26 Mar 2024 06:13:37 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rp3oF-000266-Ar; Tue, 26 Mar 2024 06:13:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:Date:References:In-Reply-To:Subject:To: From; bh=xyRszRj/ybpKkKBYB2rdWmE9Zshu8u92aUc9bXEcIt8=; b=MxlUZmJzEliEimZD5srY fxZhpT3JhPYIunGi4mb62tL+BS9DN9yY6NeJVJYt8FfevSOa8JFiayzDfNFEMAPt+TTx1Tt7uJCy2 6qFA8e4XWErxX2vahaez5o1jYA2FNT3h+U6Cmwbp/+NtqoL9t7HCU38fMjL6V2QxClxRWcAgMi3gk +AVLmiSVVY0Q1huYBbVthwr71VLrsS1LDVtCXPu3RKlzoa7bQ48AHoGqPHhJVwrcHurwbbm5mnf3X 106vdhkFw3EV2EyLsVZoEJqfkVHMU5cb2qXkA2qRKpwUom6heD87OmkPRpbtro+W2D24QPYC7k03M h/m0+2ZlZEIBVQ==; Original-Received: from acorallo by fencepost.gnu.org with local (Exim 4.90_1) (envelope-from ) id 1rp3o8-0008Tv-JR; Tue, 26 Mar 2024 06:13:33 -0400 In-Reply-To: (Andrea Corallo's message of "Fri, 15 Mar 2024 12:49:15 -0400") X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:317296 Archived-At: Andrea Corallo writes: > I'd like to progress on this but in order to do that we should pick a > syntax. > > Of the three most discussed syntaxes in this thread my order of > preference is (by examples): > > 1: > > (defun sum (a b) > (declare (function (integer integer) integer)) > (+ a b)) > > 2: > > (defun sum (a b) > (declare (type (function (integer integer) integer))) > (+ a b)) > > 3: > > (defun sum (a b) > (declare (type (integer integer) integer)) > (+ a b)) > > For the reasons I've already expressed: 1 I like it, 2 I'm okay with it, > 3 I very much dislike it. > > Maintainers WDYT? > > Thanks > > Andrea To make a summary of my understanding of this conversation on the various options so far: A couple of people mentioned would be a good idea to consider CL's syntax but this is problematic for how our declare machinery works. I think Eli and I preferred solution 1. Stefan suggested we go for 2 as it's more verbose (and this should discourage users at using it too much). Adam strongly opposed to 1 as it conflicts with his proposal [1] but AFAIU he agreed later on that thread on another solution so I guess the conflict should not be there anymore. If I've miss-summarized any opinion indeed please feel free to rectify. I think we should make a decision (maintainers) so we can progress on this. Thanks Andrea [1]