From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Steingold Newsgroups: gmane.emacs.devel Subject: Re: More reliable byte compilation, take 45 Date: Mon, 04 Oct 2021 12:03:34 -0400 Organization: disorganization Message-ID: References: <87sfxhm5aw.fsf@gnus.org> Reply-To: sds@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="23020"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (darwin) To: emacs-devel@gnu.org Cancel-Lock: sha1:VnVp0mftjIIGTsUMh3Uhx2xETsg= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Oct 04 18:11:40 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 1mXQZ2-0005q1-1i for ged-emacs-devel@m.gmane-mx.org; Mon, 04 Oct 2021 18:11:40 +0200 Original-Received: from localhost ([::1]:36386 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mXQZ0-00040Z-PS for ged-emacs-devel@m.gmane-mx.org; Mon, 04 Oct 2021 12:11:38 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48510) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mXQRV-0003CP-VD for emacs-devel@gnu.org; Mon, 04 Oct 2021 12:03:55 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:41446) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mXQRN-0005Il-VD for emacs-devel@gnu.org; Mon, 04 Oct 2021 12:03:52 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mXQRL-0005TR-V0 for emacs-devel@gnu.org; Mon, 04 Oct 2021 18:03:43 +0200 X-Injected-Via-Gmane: http://gmane.org/ X-Attribution: Sam X-Disclaimer: You should not expect anyone to agree with me. Received-SPF: pass client-ip=116.202.254.214; envelope-from=ged-emacs-devel@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: 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:276221 Archived-At: > * Lars Ingebrigtsen [2021-10-04 12:51:19 +0200]: > > A defensive solution would be to recompile all libraries that require a > library, building a dependency tree from require/autoloads/etc, but the > problem is then that if you edit anything in subr.el, then you have to > recompile all the .el files, basically. So it's not practical. Nevertheless, this is TRT (and your solution is far too complicated, IMO). Another solution was adopted by CLISP. (https://clisp.sourceforge.io/impnotes/require.html#lib-files) Briefly, compilation of `foo.el` should produce 2 files: 1. `foo.elc`, as now - this is the code whose loading is functionally equivalent to loading `foo.el` 2. `foo.ell` (lib) - this contains only the compile-time dependencies (i.e., compiled `defvar`, `defconst`, `defmacro`, and `defsubst` definitions and function declarations) When the byte compiler sees `(require 'foo)`, it will check that `foo.ell` has changed since last loaded and will reload it automatically. -- Sam Steingold (http://sds.podval.org/) on darwin Ns 10.3.1894 http://childpsy.net http://calmchildstories.com http://steingoldpsychology.com https://jihadwatch.org https://honestreporting.com https://www.memritv.org A good programmer: language change is easy, editor change is ... huh?!