From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Default lexical-binding to t Date: Fri, 01 Nov 2024 08:55:56 -0400 Message-ID: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="20884"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Nov 01 13:56:34 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 1t6rCa-0005H4-JW for ged-emacs-devel@m.gmane-mx.org; Fri, 01 Nov 2024 13:56:33 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t6rCD-00018g-6t; Fri, 01 Nov 2024 08:56:09 -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 1t6rCA-00018D-Fj for emacs-devel@gnu.org; Fri, 01 Nov 2024 08:56:06 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t6rC6-0002lk-2b for emacs-devel@gnu.org; Fri, 01 Nov 2024 08:56:06 -0400 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 542CD441CD2; Fri, 1 Nov 2024 08:55:58 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1730465757; bh=JkeLFhwtPYuaw5Vq8HZL+anKE+mzRy2VhPBKqHCboKc=; h=From:To:Subject:Date:From; b=LTr8uofkA7NNuLJ2Da4k5RfariSDG4gfVDqrArZ21UHIK5N7Bon860kpLCD6qXyG6 iyNDymi34Gy8TNhiT8cjtnXgCLp2dPkpn2YJDFTMU/dGKpAIcd8yARRcfFRDDy/c+M su2Qwqy4qwN0cgXv48N+TQ075X6qYFm2fH+QjE1q5h/mbTk7B5eqbPMHaxv+ySOE4Y Egqp3F168jZNHYMwUQpaskLYMxt8QNQbZJInE8e8Udeto/yMIXfz8Fp8rfZ7BRjp/A B/kkSK3nYB6DrvGbmJ3E/nnPn/YPxcO0MxUnw8TdhWXSw7k55+H3WjBxRuu8IB3w0Z KrM03cQzbCrdg== Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 3EFA744164F; Fri, 1 Nov 2024 08:55:57 -0400 (EDT) Original-Received: from pastel (104-195-225-43.cpe.teksavvy.com [104.195.225.43]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 1A1D212005D; Fri, 1 Nov 2024 08:55:57 -0400 (EDT) Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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: 2.1.29 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:324992 Archived-At: In bug#74145 I suggest that it is time to change the default of `lexical-binding` to t. Clearly this is a breaking change, but only for those files which: - Don't have a `lexical-binding` cookie. - Have code which happens to behave differently under the new dialect (such code is not rare, but a lot of code works identically in the two dialects). I believe by the time Emacs-31 will be released, such files will be uncommon, and it is easy to fix them (either by adjusting he code, or by slapping a `lexical-binding` cookie). Stefan