GNU bug report logs - #32012
27.0.50; jit-lock--run-functions broken

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#32012: closed (27.0.50; jit-lock--run-functions broken)
Date: Sat, 30 Jun 2018 13:53:02 +0000

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Your message dated Sat, 30 Jun 2018 16:52:46 +0300
with message-id <834lhkmle9.fsf <at> gnu.org>
and subject line Re: bug#32012: 27.0.50; jit-lock--run-functions broken
has caused the debbugs.gnu.org bug report #32012,
regarding 27.0.50; jit-lock--run-functions broken
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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32012: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=32012
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From: Andreas Röhler <andreas.roehler <at> online.de>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50; jit-lock--run-functions broken
Date: Fri, 29 Jun 2018 22:16:55 +0200

Running into it from ert-tests which call ‘jit-lock-fontify-now’

When reproduced from emacs -Q in scratch-buffer:

Debugger entered--Lisp error: (wrong-number-of-arguments (2 . 2) 0)
  jit-lock--run-functions()
  eval((jit-lock--run-functions) nil)
  elisp--eval-last-sexp(nil)
  eval-last-sexp(nil)
  funcall-interactively(eval-last-sexp nil)
  call-interactively(eval-last-sexp nil nil)
  command-execute(eval-last-sexp)

AFAIU caused by

jit-lock--run-functions from jit-lock.el, line 378, last line below

          (setq loose-beg (min loose-beg this-beg))
          (setq loose-end (max loose-end this-end))
          nil)))
    `(,(min tight-beg beg) ,(max tight-end end) ,loose-beg ,loose-end)))

‘min’ fails as ‘tight-beg’ is still nil, not updated from setq inside
pcase above.

GNU Emacs 27.0.50 (build 1, i686-pc-linux-gnu, GTK+ Version 3.14.5) of
 2018-05-29

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
Cc: 32012-done <at> debbugs.gnu.org
Subject: Re: bug#32012: 27.0.50; jit-lock--run-functions broken
Date: Sat, 30 Jun 2018 16:52:46 +0300

> From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
> Date: Sat, 30 Jun 2018 15:06:23 +0200
> 
> Please close this

Thanks, done.

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