From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#59426: 29.0.50; [tree-sitter] Some functions exceed maximum recursion limit Date: Mon, 21 Nov 2022 14:40:47 +0800 Message-ID: <87wn7o6c9c.fsf@yahoo.com> References: Reply-To: Po Lu Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="14640"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: 59426@debbugs.gnu.org To: Yuan Fu Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Nov 21 07:42:30 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 1ox0Vh-0003ic-NJ for geb-bug-gnu-emacs@m.gmane-mx.org; 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Hermes SMTP Server) with ESMTPA ID e9e2df62dee4811f16096598cd9b36ba; Mon, 21 Nov 2022 06:40:53 +0000 (UTC) In-Reply-To: (Yuan Fu's message of "Sun, 20 Nov 2022 16:53:45 -0800") X-Mailer: WebService/1.1.20863 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo 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-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:248498 Archived-At: Yuan Fu writes: > Emacs crashed on a very large C file when c-ts-mode is on, because > the function building the imenu list tries to walk through the whole > parse tree, and end up recusing ~10k times because of how deep the parse > tree is. These recursive functions should have a built-in limit. Does > Emacs already have some way to determined the max recursion limit on > each system? Or should we come up with some hard-coded numbers? We _used_ to have max-specpdl-size, which would act as a limit if the recursion was surrounded by specbind. But it was deleted in Emacs 29. Maybe it should be brought back, for this and other deeply recursive C functions?