From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: ~`symbol-function' to get code as list even when byte-compiled? Date: Mon, 25 May 2015 19:41:58 +0200 Organization: Aioe.org NNTP Server Message-ID: <87k2vw1rmh.fsf@debian.uxu> References: <877frxid14.fsf@debian.uxu> <87twv18i91.fsf@kuiper.lan.informatimago.com> <87wpzw1t8e.fsf@debian.uxu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1432575620 27875 80.91.229.3 (25 May 2015 17:40:20 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 25 May 2015 17:40:20 +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 May 25 19:40:19 2015 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 1YwwMM-0002YV-Gq for geh-help-gnu-emacs@m.gmane.org; Mon, 25 May 2015 19:40:18 +0200 Original-Received: from localhost ([::1]:44579 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YwwML-0006YQ-RA for geh-help-gnu-emacs@m.gmane.org; Mon, 25 May 2015 13:40:17 -0400 Original-Path: usenet.stanford.edu!news.glorb.com!feeder.erje.net!1.eu.feeder.erje.net!weretis.net!feeder4.news.weretis.net!news.mixmin.net!aioe.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 25 Original-NNTP-Posting-Host: feB02bRejf23rfBm51Mt7Q.user.speranza.aioe.org Original-X-Complaints-To: abuse@aioe.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) X-Notice: Filtered by postfilter v. 0.8.2 Cancel-Lock: sha1:zaZ2M8DSoKtZNJ/vLOus7DAgPgI= Mail-Copies-To: never Original-Xref: usenet.stanford.edu gnu.emacs.help:212274 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:104559 Archived-At: "Pascal J. Bourguignon" writes: > To store state. > > Don't store state in the code, use the code to act > on state stored in variables! The problem can be restated like this: A, B, ..., N are arbitrary functions. At some time they (in any constellation) will be included in a hook function list. However, each function should only be executed *once* and then immediately dropped from that hook. A, B, ..., and N don't know any of this, and in particular they don't know what hook they might be added to. -- underground experts united http://user.it.uu.se/~embe8573