From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: npostavs@users.sourceforge.net Newsgroups: gmane.emacs.bugs Subject: bug#24863: Functions declared as side-effect-free do not generate warnings in the same file Date: Thu, 03 Nov 2016 19:14:45 -0400 Message-ID: <87fun8p34q.fsf@users.sourceforge.net> References: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1478214946 13149 195.159.176.226 (3 Nov 2016 23:15:46 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 3 Nov 2016 23:15:46 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) Cc: 24863@debbugs.gnu.org To: Wilfred Hughes Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Nov 04 00:15:42 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1c2RE0-0007ze-Ba for geb-bug-gnu-emacs@m.gmane.org; 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Thu, 03 Nov 2016 16:14:01 -0700 (PDT) Original-Received: from zony ([45.2.7.130]) by smtp.googlemail.com with ESMTPSA id n62sm500718ith.2.2016.11.03.16.14.00 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 03 Nov 2016 16:14:01 -0700 (PDT) In-Reply-To: (Wilfred Hughes's message of "Wed, 2 Nov 2016 20:59:39 -0400") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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" Xref: news.gmane.org gmane.emacs.bugs:125317 Archived-At: severity 24863 minor quit Wilfred Hughes writes: > > However, ideally this wouldn't be required. I think it's just a matter > of changing defun-declarations-alist to: > > (list 'side-effect-free > #'(lambda (f _args val) > `(eval-and-compile (function-put ',f 'side-effect-free ',val))) > "If non-nil, calls can be ignored if their value is unused. > If `error-free', drop calls even if `byte-compile-delete-errors' is nil.") Note the comment above: ;; We can only use backquotes inside the lambdas and not for those ;; properties that are used by functions loaded before backquote.el. Since the side-effect-free lambda wasn't using backquotes, I presume it has to stay that way. On StackExchange you commented changing defun-declarations-alist in my current Emacs instance doesn't fix the issue But doing (setf (nth 1 (assq 'side-effect-free defun-declarations-alist)) (lambda (f _args val) `(eval-and-compile (function-put ',f 'side-effect-free ',val)))) in a running Emacs works for me. By "changing" did you mean just changing the source? In that case, you would have to redump Emacs before the change would take effect.