From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#20144: 25.0.50; Functions using fboundp not known to be defined Date: Thu, 19 Mar 2015 15:27:45 -0400 Message-ID: References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1426793365 31749 80.91.229.3 (19 Mar 2015 19:29:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 19 Mar 2015 19:29:25 +0000 (UTC) Cc: 20144@debbugs.gnu.org To: Philipp Stephani Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Mar 19 20:29:14 2015 Return-path: Envelope-to: geb-bug-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 1YYg80-0007bF-4H for geb-bug-gnu-emacs@m.gmane.org; Thu, 19 Mar 2015 20:29:12 +0100 Original-Received: from localhost ([::1]:40929 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYg7z-0004h6-1r for geb-bug-gnu-emacs@m.gmane.org; Thu, 19 Mar 2015 15:29:11 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:53604) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYg6w-0002Pw-7A for bug-gnu-emacs@gnu.org; Thu, 19 Mar 2015 15:28:08 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YYg6s-0005qw-Rf for bug-gnu-emacs@gnu.org; Thu, 19 Mar 2015 15:28:06 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:40550) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYg6s-0005qn-Nr for bug-gnu-emacs@gnu.org; Thu, 19 Mar 2015 15:28:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1YYg6s-0001P2-Da for bug-gnu-emacs@gnu.org; Thu, 19 Mar 2015 15:28:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 19 Mar 2015 19:28:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 20144 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 20144-submit@debbugs.gnu.org id=B20144.14267932685370 (code B ref 20144); Thu, 19 Mar 2015 19:28:02 +0000 Original-Received: (at 20144) by debbugs.gnu.org; 19 Mar 2015 19:27:48 +0000 Original-Received: from localhost ([127.0.0.1]:58559 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YYg6e-0001OQ-Bp for submit@debbugs.gnu.org; Thu, 19 Mar 2015 15:27:48 -0400 Original-Received: from pruche.dit.umontreal.ca ([132.204.246.22]:41656) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YYg6c-0001OB-JS; Thu, 19 Mar 2015 15:27:46 -0400 Original-Received: from pastel.home (lechon.iro.umontreal.ca [132.204.27.242]) by pruche.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id t2JJRj5f016488; Thu, 19 Mar 2015 15:27:45 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id 390DA182C; Thu, 19 Mar 2015 15:27:45 -0400 (EDT) In-Reply-To: (Philipp Stephani's message of "Thu, 19 Mar 2015 16:54:41 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV5250=0 X-NAI-Spam-Version: 2.3.0.9393 : core <5250> : inlines <2448> : streams <1408195> : uri <1884883> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:100668 Archived-At: severity 20144 wishlist thanks > (if (fboundp 'car) > (defalias 'mycar 'car) > (defun mycar (_l) (error "what"))) (defalias 'mycar (if (fboundp 'car) 'car (lambda (_l) (error "what")))) The difference is one of the two versions requires reasoning (simple/trivial for you, but beyond the reach of the simple byte-compiler we're using), whereas the other doesn't. Admittedly, when you need to define two versions of a *set* of functions, depending on a single test, the above trick of sinking the testing into the `defalias' ends up being a bit ugly/inconvenient. Stefan