From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Pascal J. Bourguignon" Newsgroups: gmane.emacs.help Subject: Re: ~`symbol-function' to get code as list even when byte-compiled? Date: Mon, 25 May 2015 05:10:18 +0200 Organization: Informatimago Message-ID: <87twv18i91.fsf@kuiper.lan.informatimago.com> References: <877frxid14.fsf@debian.uxu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1432524026 11563 80.91.229.3 (25 May 2015 03:20:26 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 25 May 2015 03:20:26 +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 05:20:22 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 1Ywiw9-0001HS-TS for geh-help-gnu-emacs@m.gmane.org; Mon, 25 May 2015 05:20:22 +0200 Original-Received: from localhost ([::1]:41771 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ywiw9-0002zQ-2b for geh-help-gnu-emacs@m.gmane.org; Sun, 24 May 2015 23:20:21 -0400 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 52 Original-X-Trace: individual.net BEr0/CWyugDxaiqbHkUiDgbXbglWZqIjakKMcZSwnZ2Et/knrz Cancel-Lock: sha1:NTg2YzAxNzZiMWE0Y2FiYmZiYmUxYjQwM2IwNzIwZWNkMmI1OGZhYw== sha1:nBfCrdAXvShvdPcYNiGXme5Xz1c= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Original-Xref: usenet.stanford.edu gnu.emacs.help:212268 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:104552 Archived-At: Emanuel Berg writes: > (re-search-forward "^Question") > > Here is some interesting code. What's interesting is: > when this code executes, it changes itself, i.e. > the code changes the code! > > But it isn't a macro which is a program that produces > a new program based on its own logic and non-evaluated > input data. > > On the contrary, here we deal all with ordinary > functions (defuns) where one changes the other. > Does that always happen? No - only when it is needed! > > See the entire code here [1]. Go there if you want to > see this in execution as it probably is based on some > other functions as well. The below code is for display > purposes ONLY! > > Question: this is all working thanks to > `symbol-function' which is used to get the code of the > function as data, so it can be examined and > manipulated. However, if I byte-compile the code > (which I always do), `symbol-function' doesn't return > a lambda function which is also a list, but instead > just a function #[...] which isn't a list. So then it > doesn't work! This is your hint. > I was able to do a workaround with `load-file' in > .emacs to get all the functions in the file in > evaluated form. But, can I do that specifically for > a named function, *or*, can I extract the code in list > format somehow even if compiled? No. But since you should not do that anyways, it should not be a problem. Variables have been invented for a purpose. -- __Pascal Bourguignon__ http://www.informatimago.com/ “The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment.” -- Carl Bass CEO Autodesk