From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: =?UTF-8?Q?Cl=c3=a9ment_Pit-Claudel?= Newsgroups: gmane.emacs.devel Subject: Re: Try and detect common problems in lexical code Date: Wed, 18 Mar 2020 18:29:15 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="35883"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Mar 18 23:30:01 2020 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 1jEhCL-0009EF-Jy for ged-emacs-devel@m.gmane-mx.org; Wed, 18 Mar 2020 23:30:01 +0100 Original-Received: from localhost ([::1]:59106 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jEhCK-0008DB-LV for ged-emacs-devel@m.gmane-mx.org; Wed, 18 Mar 2020 18:30:00 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:38024) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jEhBf-0007LS-Mf for emacs-devel@gnu.org; Wed, 18 Mar 2020 18:29:20 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jEhBe-0007WT-OE for emacs-devel@gnu.org; Wed, 18 Mar 2020 18:29:19 -0400 Original-Received: from mail-qt1-x82f.google.com ([2607:f8b0:4864:20::82f]:42270) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jEhBe-0007Rm-JM for emacs-devel@gnu.org; Wed, 18 Mar 2020 18:29:18 -0400 Original-Received: by mail-qt1-x82f.google.com with SMTP id g16so134886qtp.9 for ; Wed, 18 Mar 2020 15:29:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=Xeb0Mg+VmSQ6uDLEi5tcaBNgn74SPzV+okRxeFc9cYk=; b=sHB9S+Rgz+lxOUQe+67mHI0ftRJCv0cnWAWhgewmQkSY5CXshxPv1lxmwiwe8GlTDa 0vt2kGeuWaYuZQmFzfoG38tb0dk6kQm1gqF+L0Fnh4bl1I2asOgjByyJUe+ODjrFX+wR PeALXTYdfBPBfRafqJs18c1e4Q1esgXFYZ6OdWtGu1Or2IthBVYaO++PKA3T9RV18S9t LgkLTRoE/32Uoj98DJBctBD40WLUZobKdZynvZGPviNk4i1WjOBB1lcGjl/St1lVqed2 kcBFezzJa9yyiYuOBoWEbbTTwIZarZYoNad/1qiCPFmJp3P9KpN8u3skniUSXMLdhWST uNEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=Xeb0Mg+VmSQ6uDLEi5tcaBNgn74SPzV+okRxeFc9cYk=; b=I/N928B6GaQq66k8IJu/NpgtFWkwjOsHTPc1pi+3K3G07pIrQ25BHv4W+OEoicob+w 5Q3SE7VAuRl1DMrEEhIWWXHLiyrtNdOjVOXi5AwiFb8p8S2nFlTcIlcjIk2KFhPbBaGz cBqi2LC8FNk2AlnZmxO2toqm1wl6SlRn6yYQYZbCH+vZA4tCsa5QfMRXLSsCOkMPLf/0 9zx5qJZXpF398Enw4e8woYmJV0l4uCCoEfWprb4sao+48Ypg2J9sjZSXub2kEB5utwbA X1Wxvc2skjh8AywGJEu4KgCFCs9NG+axXu7R/DKqlwrNZwaiAxytarycGh4bGTK5PYC/ W+JQ== X-Gm-Message-State: ANhLgQ0DdAd0Kb2IpoKy3GzTYKHMQmSjgj0oQeGTE1ZKSYTy/jUgU46d pzHmhH5gHF6Ao6DfKBGkx5k70P4E X-Google-Smtp-Source: ADFU+vtnQ0zr1vXjFVqABhj+gfwZ4WPs/+xk9L0MeEOBmnoxfTRqUdFfLiN9i5ne+9aiwAvfpHi62g== X-Received: by 2002:aed:32a1:: with SMTP id z30mr7065919qtd.288.1584570557337; Wed, 18 Mar 2020 15:29:17 -0700 (PDT) Original-Received: from ?IPv6:2601:184:4180:66e7:561:ef55:f450:ea12? ([2601:184:4180:66e7:561:ef55:f450:ea12]) by smtp.googlemail.com with ESMTPSA id s195sm275154qke.25.2020.03.18.15.29.16 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Mar 2020 15:29:16 -0700 (PDT) In-Reply-To: Content-Language: en-GB X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::82f 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:245573 Archived-At: Well, that was fast! :) > Another difference is that this probably has a more noticeable > performance impact Shouldn't the cost be essentially 0 when (defvar) happens "at the toplevel", within an empty specdpl stack? And isn't that the common case (a defvar is a toplevel form in a file loaded by a `require')? Clément.