From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Olaf Rogalsky Newsgroups: gmane.emacs.help Subject: Re: understanding backquote Date: Wed, 03 Jun 2015 01:54:12 +0200 Message-ID: <87iob5ll97.fsf@aol.de> References: <87vbf65jem.fsf@free.fr> <87k2vl4sm0.fsf@kuiper.lan.informatimago.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1433289280 3610 80.91.229.3 (2 Jun 2015 23:54:40 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 2 Jun 2015 23:54:40 +0000 (UTC) Cc: help-gnu-emacs@gnu.org To: "Pascal J. Bourguignon" Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Jun 03 01:54:31 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 1Yzw0r-0000yE-24 for geh-help-gnu-emacs@m.gmane.org; Wed, 03 Jun 2015 01:54:29 +0200 Original-Received: from localhost ([::1]:33041 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yzw0q-0000IU-EW for geh-help-gnu-emacs@m.gmane.org; Tue, 02 Jun 2015 19:54:28 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48528) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yzw0g-0000IP-N2 for help-gnu-emacs@gnu.org; Tue, 02 Jun 2015 19:54:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Yzw0d-0000SB-HO for help-gnu-emacs@gnu.org; Tue, 02 Jun 2015 19:54:18 -0400 Original-Received: from omr-m4.mx.aol.com ([64.12.226.25]:44521) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yzw0d-0000S6-Dm for help-gnu-emacs@gnu.org; Tue, 02 Jun 2015 19:54:15 -0400 Original-Received: from mtaout-aad02.mx.aol.com (mtaout-aad02.mx.aol.com [172.26.127.226]) by omr-m4.mx.aol.com (Outbound Mail Relay) with ESMTP id C19E238000059; Tue, 2 Jun 2015 19:54:14 -0400 (EDT) Original-Received: from blaubaer (p5DD06311.dip0.t-ipconnect.de [93.208.99.17]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mtaout-aad02.mx.aol.com (MUA/Third Party Client Interface) with ESMTPSA id 28A783800008F; Tue, 2 Jun 2015 19:54:14 -0400 (EDT) In-reply-to: <87k2vl4sm0.fsf@kuiper.lan.informatimago.com> x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20140625; t=1433289254; bh=MZUFzKMGPl17VHMu572+O3k5lftUCUHpw1j656Oynzs=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=ZgBF/U/0yFteHmU4ivGY6LRjfyHGoIhadZ78Dz7yaJEMdTuSsb4sHF+RAXK3lyun0 ucTbd6ad5jxAMaL4bIT28c4btVCqnQy+mW/HHsLdfEtPBv9z5OkDtWIurVWLGqkSng PZlgmdNUZAbZDfNSitZBd/MzlM2zaM+8tkvfDGoU= x-aol-sid: 3039ac1a7fe2556e42261e55 X-AOL-IP: 93.208.99.17 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 64.12.226.25 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:104726 Archived-At: Pascal J. Bourguignon writes: >> Is there a way to evaluate parts of a defun during read-time or >> byte-compile-time? > > In emacs lisp, there's no way to evaluate anything at read-time. In my use case, computing the constant expression at run time has only very litle performance overhead, so I guess, I will go along this path. Still sad, that it is not possible to do it at read or compile time. Olaf