From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#53938: 27.2; Defining function that modifies cl-struct before defining cl-struct Date: Sat, 12 Feb 2022 07:55:46 +0100 Message-ID: <87bkzc60b1.fsf@gnus.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3178"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 53938@debbugs.gnu.org, Stefan Monnier To: Ignacio Casso Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Feb 12 07:56:19 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nImKQ-0000fT-Oq for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from [84.212.220.105] (helo=giant) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nImJv-0004Nd-5b; Sat, 12 Feb 2022 07:55:50 +0100 X-Now-Playing: Yukihiro Takahashi's _Blue Moon Blue_: "Blue Moon Blue" In-Reply-To: (Ignacio Casso's message of "Fri, 11 Feb 2022 10:45:50 +0100") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:226693 Archived-At: Ignacio Casso writes: > If you define a function that uses a cl struct before defining the cl > struct (e.g., because the struct is defined in a package to be autoloaded= and the > function in your init file), there is an error when calling the function > later. > > Here is a simple elisp file to reproduce it, starting Emacs with "emacs > -Q": > > (require 'cl-macs) > > (defun change-name (struct new-name) > (setf (my-struct-name struct) new-name)) > > (cl-defstruct my-struct > name) > > (setq my-struct (make-my-struct)) > > (change-name my-struct "My struct") > > This produces the following error: > > Debugger entered--Lisp error: (void-function \(setf\ my-struct-name\)) > (\(setf\ my-struct-name\) new-name v) If you'd byte-compiled this, then the compiler would say In end of data: cl.el: Warning: the function =E2=80=98(setf my-struct-name)=E2=80=99 is not= known to be defined. So I think that Emacs is probably working as designed here. But perhaps Stefan has some comments; added to the CCs. --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no