From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#51695: 29.0.50; lexical scope closure, interactive spec byte compiler warnings/usage issue Date: Wed, 10 Nov 2021 05:13:25 +0100 Message-ID: <87r1bozlzu.fsf@zoho.eu> References: <87k0hi2p3i.fsf@zoho.eu> <87bl2sdhxo.fsf@web.de> <875yt022yw.fsf@zoho.eu> Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="27198"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: 51695@debbugs.gnu.org Cancel-Lock: sha1:Xh/0Ic9m+Oz9mylJmC27nAS/22Y= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Nov 10 05:14:10 2021 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 1mkezx-0006ui-FV for geb-bug-gnu-emacs@m.gmane-mx.org; 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Wed, 10 Nov 2021 05:13:35 +0100 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: bug-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geb-bug-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action 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:219504 Archived-At: >> #+begin_src emacs-lisp >> (let* ((data-item 1) >> (more-data 2)) >> (defalias 'echo-data--interactive >> (lambda () >> (list (read-number "number: " (or data-item more-data))))) >> (declare-function echo-data--interactive test) ;defun was not top-level >> (defun echo-data (&optional data) >> (interactive (echo-data--interactive)) >> (message "data: %s" (or data data-item)) )) >> #+end_src > > Thanks, I wrote this to illustrate the situation but > interesting nonetheless, I don't think I've seen `defalias' > to a `lambda' before and also didn't think of putting > `declare-function' within the `let' body ... practical. It works. Both the aliases and the functions have to be `declare-function'ed for the byte compiler. `defalias' and `lambda' BTW, isn't that an anonymous function with a name ... maybe an ordinary function makes more sense there, especially since `declare-function' has to be used? Or why a lambda? -- underground experts united https://dataswamp.org/~incal