From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.devel Subject: Help sought from C++ expert: is this `value' a type or something else (what)? Date: Thu, 19 Jan 2023 14:53:22 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31344"; mail-complaints-to="usenet@ciao.gmane.io" To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Jan 19 15:54:32 2023 Return-path: Envelope-to: ged-emacs-devel@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 1pIWJE-0007qc-53 for ged-emacs-devel@m.gmane-mx.org; Thu, 19 Jan 2023 15:54:32 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pIWIN-00038h-6H; Thu, 19 Jan 2023 09:53:39 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pIWIL-00038Z-8h for emacs-devel@gnu.org; Thu, 19 Jan 2023 09:53:37 -0500 Original-Received: from mx3.muc.de ([193.149.48.5]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pIWIJ-0002V6-72 for emacs-devel@gnu.org; Thu, 19 Jan 2023 09:53:37 -0500 Original-Received: (qmail 62812 invoked by uid 3782); 19 Jan 2023 15:53:23 +0100 Original-Received: from acm.muc.de (p4fe15cd6.dip0.t-ipconnect.de [79.225.92.214]) (using STARTTLS) by colin.muc.de (tmda-ofmipd) with ESMTP; Thu, 19 Jan 2023 15:53:22 +0100 Original-Received: (qmail 8104 invoked by uid 1000); 19 Jan 2023 14:53:22 -0000 Content-Disposition: inline X-Submission-Agent: TMDA/1.3.x (Ph3nix) X-Primary-Address: acm@muc.de Received-SPF: pass client-ip=193.149.48.5; envelope-from=acm@muc.de; helo=mx3.muc.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:302548 Archived-At: Hello, Emacs. In the following test file, templates-9.cc from the CC Mode test suite, on the indicated line, what is the syntactic significance of `value'? Traditionally, it has fontified with the default face, but recently after some (not yet committed) changes in CC Mode, it has started getting font-lock-type-face. I don't understand the file at all, hardly, and can't work out whether the old (non-) fontification was correct, or whether the new fontification of f-l-type-face is correct. Help would be appreciated. Just as a matter of interest, in c++-ts-mode a treesit-query-error gets thrown. It isn't clear to me whether the file is still valid C++. ///////////////////////////////////////////////////////////////////////// typedef std::pair > > > list_of_types; typedef std::pair< int, std::pair< long, std::pair< char*, std::pair > > > list_of_types; typedef typename if_true < boost::is_same < boost::add_pointer , int* >::value // <=================================================== >::template then < boost::remove_reference // else , X >::type modified_X; ///////////////////////////////////////////////////////////////////////// Thanks! -- Alan Mackenzie (Nuremberg, Germany).