From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: [External] : Re: Lexical vs. dynamic: small examples? Date: Mon, 16 Aug 2021 01:13:28 +0200 Message-ID: <87fsvanvxj.fsf@zoho.eu> References: <4a9bddb9ec57299b3b0c@heytings.org> <87y293sdxk.fsf@zoho.eu> <87pmufs4er.fsf@zoho.eu> <87wnompmpw.fsf@zoho.eu> <87k0kmgycz.fsf@gnus.org> <87r1eunx92.fsf@zoho.eu> Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="2617"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:MttBruFGGhVHHWkXuNvK1aRDtEk= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Aug 16 01:14:18 2021 Return-path: Envelope-to: geh-help-gnu-emacs@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 1mFPKb-0000SW-Ob for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 16 Aug 2021 01:14:17 +0200 Original-Received: from localhost ([::1]:54352 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mFPKa-0005ON-A5 for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 15 Aug 2021 19:14:16 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35908) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mFPJz-0005OA-Aa for help-gnu-emacs@gnu.org; Sun, 15 Aug 2021 19:13:39 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:46440) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mFPJx-0004cI-7u for help-gnu-emacs@gnu.org; Sun, 15 Aug 2021 19:13:38 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mFPJu-000AES-Vx for help-gnu-emacs@gnu.org; Mon, 16 Aug 2021 01:13:35 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:132598 Archived-At: Stefan Monnier via Users list for the GNU Emacs text editor wrote: >> Ah... can't wait to remove all the >> >> ;;; -*- lexical-binding: t -*- >> >> from my code :) > > That won't happen before all the files contain the above > line, sadly. Can't it be done with `lexical-let'? It seems to work: ;;; this file: ;;; http://user.it.uu.se/~embe8573/emacs-init/geh-dyn.el ;;; https://dataswamp.org/~incal/emacs-init/geh-dyn.el (require 'cl-lib) (defun *a10 () (* a 2) ) (defun mult () (lexical-let ((a 10)) (*a10) )) ;; (mult) ; *a10: Symbol’s value as variable is void: a But sometimes it says (invalid-function (a 10)) - hm ... -- underground experts united https://dataswamp.org/~incal