From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: 1) (elisp) `Advising Named Functions', 2) search filtering example Date: Mon, 17 Oct 2016 11:51:37 -0400 Message-ID: References: <5a44a850-e4fc-4c9f-a266-c74766810ba1@default> <1807679d-1125-4afe-81b7-b8d8e78aa2c6@default> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1476719741 28989 195.159.176.226 (17 Oct 2016 15:55:41 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 17 Oct 2016 15:55:41 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Oct 17 17:55:37 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 1bwAGA-0006Cn-H2 for ged-emacs-devel@m.gmane.org; Mon, 17 Oct 2016 17:55:30 +0200 Original-Received: from localhost ([::1]:34032 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bwAGC-0007SK-J2 for ged-emacs-devel@m.gmane.org; Mon, 17 Oct 2016 11:55:32 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:47942) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bwADA-0004BG-QT for emacs-devel@gnu.org; Mon, 17 Oct 2016 11:52:25 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bwAD5-0003vI-W6 for emacs-devel@gnu.org; Mon, 17 Oct 2016 11:52:24 -0400 Original-Received: from [195.159.176.226] (port=56711 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1bwAD5-0003ua-P2 for emacs-devel@gnu.org; Mon, 17 Oct 2016 11:52:19 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1bwACT-0006Ff-Eq for emacs-devel@gnu.org; Mon, 17 Oct 2016 17:51:41 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 17 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:AbwNRTXiFfX7ktYQr3mSsztXedI= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 195.159.176.226 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:208364 Archived-At: > Applying macro `add-function' to `isearch-filter-predicate' > advises the value - the function itself. No. > It does not just > point the variable to a different value (function). Yes it does. > `(symbol-function isearch-filter-predicate)' returns an advice > (an object that satisfies "internal" predicate `advice--p'). No, it returns nil because this symbol is not defined as a function. Stefan