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#46819: 28.0.50; Undesireable warning: Empty let body from the `benchmark-run' implementation Date: Mon, 01 Mar 2021 01:19:33 +0100 Message-ID: <87zgznbu96.fsf@gnus.org> References: <87h7lwmgaj.fsf@gnus.org> <874khvd9b4.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="21776"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Stefan Monnier , 46819@debbugs.gnu.org To: Matt Armstrong Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 01 01:21:38 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 1lGWJd-0005Y4-4I for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from cm-84.212.220.105.getinternet.no ([84.212.220.105] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lGWHk-0004Y7-5y; Mon, 01 Mar 2021 01:19:42 +0100 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAgMAAAAqbBEUAAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAADFBMVEXBv8AxMTZ/fYH/ //9f11wxAAAAAWJLR0QDEQxM8gAAAAd0SU1FB+UDAQAHCtrVQv0AAAFrSURBVCjPdZFBS8NAEIUf C0LM2RTaUyhG2vwKr95KYRayJy2kmPyKJSBITiJs0J62YqXZX+mMaW09OOSwX97Om+UNEiJDVLZZ SQQGIk23J+hpmZGALlnouguBzPS6de7uU4tiQtj1tLo2HWHE4GoywYwcJssQYlevp4ukx2QVwmYe xfYlKTC9VxZxFCFlSD0AhdimiUNq+dww5PPqR+GLgJ8sgRlgLZTy+StSDGV93osQuAM+jbaIwZ/y 8nOKqUUkCsMlbrxYRdKrMJrZGD9zI4Vs31w0TSSzFCZvPls2XjwU5k1DxZ6f8Zgq5KGuaM9NV3mD 9GG1Ja2ukHcBs2z1TouPvWo5kPmOM6oXPnaSTiUpbrKd3g2JGmqfSLsBHqnd/sKz6TYSOCT9oqo7 ZwIDKwX16yp8DSBVG5lzAN0zjA/QOdLD5rhKWeOxp6DjTg+F/F8YUyXPGiCh+jjpj4E7h/IcCoby 5ObOrL8B712sv+MEtpIAAAAldEVYdGRhdGU6Y3JlYXRlADIwMjEtMDMtMDFUMDA6MDc6MTArMDA6 MDA4/A7tAAAAJXRFWHRkYXRlOm1vZGlmeQAyMDIxLTAzLTAxVDAwOjA3OjEwKzAwOjAwSaG2UQAA AABJRU5ErkJggg== X-Now-Playing: Daniel Avery's _20 Years of Fabric (2)_: "Whilst We've Got Metal In Our Blood" In-Reply-To: <874khvd9b4.fsf@gnus.org> (Lars Ingebrigtsen's message of "Mon, 01 Mar 2021 01:09:03 +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:201042 Archived-At: Lars Ingebrigtsen writes: >> It might be hard to fix in the general case. Think about this example: >> >> (let (...) >> (some-macro blah)) >> >> What if that macro expands to nothing, based on some criteria not >> entirely under programmer control? Is the code "wrong"? (And besides -- the macro can't really expand to nothing here, can it? (nil is something.) Or am I misunderstanding what it's warning about?) -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no