From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#34771: 27.0.50; object is a window sometimes although it should be a buffer in conditional display spec Date: Wed, 06 Mar 2019 21:08:54 +0200 Message-ID: <834l8fddmh.fsf@gnu.org> References: <87bm2nj3wk.fsf@gnu.org> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="237213"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 34771@debbugs.gnu.org To: Tassilo Horn Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Mar 06 20:10:13 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1h1bvh-000zbk-IF for geb-bug-gnu-emacs@m.gmane.org; Wed, 06 Mar 2019 20:10:13 +0100 Original-Received: from localhost ([127.0.0.1]:37915 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h1bvf-00055c-Vv for geb-bug-gnu-emacs@m.gmane.org; Wed, 06 Mar 2019 14:10:12 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:43463) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h1bva-00055I-2e for bug-gnu-emacs@gnu.org; Wed, 06 Mar 2019 14:10:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h1bvY-00007v-Cj for bug-gnu-emacs@gnu.org; Wed, 06 Mar 2019 14:10:06 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:49366) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1h1bvW-00006Q-OD for bug-gnu-emacs@gnu.org; Wed, 06 Mar 2019 14:10:04 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1h1bvW-0000XS-GE for bug-gnu-emacs@gnu.org; Wed, 06 Mar 2019 14:10:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 06 Mar 2019 19:10:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 34771 X-GNU-PR-Package: emacs Original-Received: via spool by 34771-submit@debbugs.gnu.org id=B34771.15518993501976 (code B ref 34771); Wed, 06 Mar 2019 19:10:02 +0000 Original-Received: (at 34771) by debbugs.gnu.org; 6 Mar 2019 19:09:10 +0000 Original-Received: from localhost ([127.0.0.1]:34672 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1h1buf-0000Vo-JN for submit@debbugs.gnu.org; Wed, 06 Mar 2019 14:09:09 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:57115) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1h1bud-0000VZ-JM for 34771@debbugs.gnu.org; Wed, 06 Mar 2019 14:09:08 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:47474) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h1buY-0007XM-BM for 34771@debbugs.gnu.org; Wed, 06 Mar 2019 14:09:02 -0500 Original-Received: from [176.228.60.248] (port=3244 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1h1buW-0004It-Tq; Wed, 06 Mar 2019 14:09:01 -0500 In-reply-to: <87bm2nj3wk.fsf@gnu.org> (message from Tassilo Horn on Wed, 06 Mar 2019 18:42:19 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:156108 Archived-At: > From: Tassilo Horn > Date: Wed, 06 Mar 2019 18:42:19 +0100 > > So in a conditional display spec, object should always be a buffer. (It could also be a string, although not in your case.) > However, that doesn't seem to be the reality. Sometimes, it is also a > window. > > Here's a recipe for the current master: > > $ emacs -q > > In *scratch* insert and evaluate: > > (insert (propertize "foobar" 'display > `(when (get-buffer-window object) > . ,(format "%s" (random)))) "\n") > > Now move point over the displayed random number, hit and hold C-l, or > do whatever triggers redisplay. > > Now I have this in *Messages*: > > Error during redisplay: (eval (get-buffer-window object)) signaled (wrong-type-argument stringp #) [33 times] The documentation is correct, but the code had a bug. I hope I fixed it now. Thanks.