From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: flet, cl-flet, cl-letf in 24.3 Date: Mon, 22 Apr 2013 09:32:05 -0400 Message-ID: References: <5c1e7b99-1d04-46fe-a0d0-3709a468add7@googlegroups.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1366637549 7279 80.91.229.3 (22 Apr 2013 13:32:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 22 Apr 2013 13:32:29 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Apr 22 15:32:33 2013 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UUGr8-00068V-6T for geh-help-gnu-emacs@m.gmane.org; Mon, 22 Apr 2013 15:32:30 +0200 Original-Received: from localhost ([::1]:48990 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUGr5-00059R-NR for geh-help-gnu-emacs@m.gmane.org; Mon, 22 Apr 2013 09:32:27 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:51551) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUGqu-00059E-5b for help-gnu-emacs@gnu.org; Mon, 22 Apr 2013 09:32:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UUGqs-0006v6-Io for help-gnu-emacs@gnu.org; Mon, 22 Apr 2013 09:32:16 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:56711) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUGqs-0006uK-8n for help-gnu-emacs@gnu.org; Mon, 22 Apr 2013 09:32:14 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1UUGqq-0005kI-JC for help-gnu-emacs@gnu.org; Mon, 22 Apr 2013 15:32:12 +0200 Original-Received: from 206-248-176-29.dsl.teksavvy.com ([206.248.176.29]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 22 Apr 2013 15:32:12 +0200 Original-Received: from monnier by 206-248-176-29.dsl.teksavvy.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 22 Apr 2013 15:32:12 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 27 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 206-248-176-29.dsl.teksavvy.com User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) Cancel-Lock: sha1:kFbsi+0dY9QJDYttS7KXP8ue5hs= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:90288 Archived-At: > as reported here [5], this documentation does not really tell me what to do > if I want to keep relying on the dynamic scoping of flet. A brief google > search [6] leads me to believe that > (cl-letf (((symbol-function 'foo) #'(lambda (...) ...))) ...) > is the suggested solution, That's the case. > Does that always have dynamic scope? How could it not? > however I wanted to make sure that is the case. Even better in most cases is: (defvar my-enable-foo-advice nil) (defadvice foo (...) (if my-enable-foo-advice ... ...)) and then replace (flet ((foo ...)) ...) with (let ((my-enable-foo-advice t)) ...) Stefan