From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: default-toplevel-value and set-default-toplevel-value Date: Mon, 26 Dec 2016 17:40:46 +0200 Message-ID: <834m1qy9z5.fsf@gnu.org> References: <83fultce6q.fsf@gnu.org> <8360m7xt8y.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1482766906 15610 195.159.176.226 (26 Dec 2016 15:41:46 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 26 Dec 2016 15:41:46 +0000 (UTC) Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Dec 26 16:41:42 2016 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cLXP6-0002gu-FU for ged-emacs-devel@m.gmane.org; Mon, 26 Dec 2016 16:41:36 +0100 Original-Received: from localhost ([::1]:50704 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cLXPB-0006Lt-4h for ged-emacs-devel@m.gmane.org; Mon, 26 Dec 2016 10:41:41 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33018) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cLXOZ-0006Lo-IB for emacs-devel@gnu.org; Mon, 26 Dec 2016 10:41:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cLXOV-000661-2H for emacs-devel@gnu.org; Mon, 26 Dec 2016 10:41:03 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:41608) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cLXOU-00065v-Vb; Mon, 26 Dec 2016 10:40:59 -0500 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3165 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cLXOU-0005dZ-7r; Mon, 26 Dec 2016 10:40:58 -0500 In-reply-to: (message from Stefan Monnier on Sun, 25 Dec 2016 23:09:37 -0500) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:210818 Archived-At: > From: Stefan Monnier > Cc: emacs-devel@gnu.org > Date: Sun, 25 Dec 2016 23:09:37 -0500 > > > I seem to see there's more to this than meets the eye, see > > http://lists.gnu.org/archive/html/emacs-devel/2016-12/msg00924.html. > > Could you please help me understand it? I'd like to document this for > > Emacs 25.2. > > I don't understand: there's no use of default-toplevel-value in your > example, AFAICT. Yes, because there doesn't seem to be any need for using it, as default-value is unaffected by the let-binding. I expected default-value to return the value from let-binding, and default-toplevel-value to return the global value, otherwise I don't see why the latter is needed. I guess I misunderstood something that you and/or the doc string were trying to tell. Thanks.