From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Barry Margolin Newsgroups: gmane.emacs.help Subject: Re: Why (eval-when-compile (require 'foo)) does not bind functions during compilation? Date: Sun, 30 Aug 2015 15:18:13 -0400 Organization: A noiseless patient Spider Message-ID: References: <874mjhdyu8.fsf@kuiper.lan.informatimago.com> NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1440962465 29789 80.91.229.3 (30 Aug 2015 19:21:05 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 30 Aug 2015 19:21:05 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Aug 30 21:21:04 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 1ZW89N-0000Gz-9j for geh-help-gnu-emacs@m.gmane.org; Sun, 30 Aug 2015 21:20:21 +0200 Original-Received: from localhost ([::1]:60215 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZW89N-00059j-9w for geh-help-gnu-emacs@m.gmane.org; Sun, 30 Aug 2015 15:20:21 -0400 Original-Path: usenet.stanford.edu!news.kjsl.com!feeder.erje.net!1.eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!mx02.eternal-september.org!barmar.motzarella.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 18 Injection-Info: barmar.motzarella.org; posting-host="2be9e9f5dd9af768b8861af71b85fc28"; logging-data="11235"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/RjaEim0MUpNgEyngiOOz1" User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) Cancel-Lock: sha1:kyo94YNn7WNlsio4U/VaVYdzzTY= Original-Xref: usenet.stanford.edu gnu.emacs.help:214651 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:106935 Archived-At: In article <874mjhdyu8.fsf@kuiper.lan.informatimago.com>, "Pascal J. Bourguignon" wrote: > Your mental model should be that compilation is reading data and > producing data, and there's no reason for that process to modify the > compiler. That basic model applies to most languages, but Lisp is a little different. The very existence of eval-when-compile means that the compiler itself is programmable. Lisp allows reflection and self-reference like this. And once you allow that, the OP's question becomes very meaningful. -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me ***