From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Tomas Hlavaty Newsgroups: gmane.emacs.devel Subject: Re: What's missing in ELisp that makes people want to use cl-lib? Date: Tue, 14 Nov 2023 09:13:08 +0100 Message-ID: <87a5rgrbvv.fsf@neko.mail-host-address-is-not-set> References: <87bkc4jpja.fsf@dataswamp.org> <12da6bcb-1818-7fbe-12af-8d4607724332@gutov.dev> <87il6bt4z0.fsf@yahoo.com> <8734xetjkk.fsf@yahoo.com> <87cywhsrcf.fsf@yahoo.com> <87cywgx1z0.fsf@web.de> <83wmuowwp3.fsf@gnu.org> <83leb3v5al.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="12032"; mail-complaints-to="usenet@ciao.gmane.io" Cc: joaotavora@gmail.com, emacs-devel@gnu.org To: rms@gnu.org, Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Nov 14 09:14:24 2023 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 1r2oYy-0002uq-2x for ged-emacs-devel@m.gmane-mx.org; Tue, 14 Nov 2023 09:14:24 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r2oY3-0007Dm-3T; Tue, 14 Nov 2023 03:13:27 -0500 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 1r2oY1-0007DD-1h for emacs-devel@gnu.org; Tue, 14 Nov 2023 03:13:25 -0500 Original-Received: from logand.com ([37.48.87.44]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r2oXz-0000Kh-IQ; Tue, 14 Nov 2023 03:13:24 -0500 Original-Received: by logand.com (Postfix, from userid 1001) id 8A26319E77A; Tue, 14 Nov 2023 09:13:11 +0100 (CET) X-Mailer: emacs 28.2 (via feedmail 11-beta-1 I) In-Reply-To: Received-SPF: pass client-ip=37.48.87.44; envelope-from=tom@logand.com; helo=logand.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action 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:312717 Archived-At: On Mon 13 Nov 2023 at 21:58, Richard Stallman wrote: > > (cl-loop > > with comp-ctxt = (make-comp-cstr-ctxt) > > with h = (make-hash-table :test #'eq) > > for (f type-spec) in comp-known-type-specifiers > > for cstr = (comp-type-spec-to-cstr type-spec) > > do (puthash f cstr h) > > finally return h) > Boy that is hard to understand. It is ugly. > I suggest we rewrite those cl-loop calls > into ordinary Lisp, avoiding use of cl-loop. That would be something along the lines of: (let ((comp-ctxt (make-comp-cstr-ctxt)) (h (make-hash-table :test #'eq)) f) (while (setq f (pop comp-known-type-specifiers)) (puthash f (comp-type-spec-to-cstr type-spec) h)) h) comp-ctxt does not seem to be used. Does emacs-lisp compiler not warn about unused variables? > I looked at the manual for the iter construct ("iterate"). The added > parentheses make it fit better into Lisp. I find the idea of iterate even uglier that cl-loop and I think that it leads people completely astray. It is not ordinary lisp code or macro, it is a compiler.