GNU bug report logs - #20295
11.88.3; AUCTeX, ESS, Noweb, and "Error running timer `font-latex-jit-lock-force-redisplay': (wrong-number-of-arguments (2 . 2) 3)"

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From: "Bourgoin, Mario" <Mario.Bourgoin <at> emc.com>
To: Tassilo Horn <tsdh <at> gnu.org>
Cc: "20295 <at> debbugs.gnu.org" <20295 <at> debbugs.gnu.org>
Subject: bug#20295: 11.88.3; AUCTeX, ESS, Noweb, and "Error running timer `font-latex-jit-lock-force-redisplay': (wrong-number-of-arguments (2 . 2) 3)"
Date: Mon, 13 Apr 2015 19:14:30 +0000

Hi Tassilo,

Thank you for answering.

> What does `C-h f font-latex-jit-lock-force-redisplay' show?

I get
----
font-latex-jit-lock-force-redisplay is a compiled Lisp function in `font-latex.el'.

(font-latex-jit-lock-force-redisplay BUF START END)

Compatibility for Emacsen not offering `jit-lock-force-redisplay'.
----
The file `font-latex.el' has the following in its header:
;; Authors:    Peter S. Galbraith <psg <at> debian.org>
;;             Simon Marshall <Simon.Marshall <at> esrin.esa.it>
;; Maintainer: auctex-devel <at> gnu.org
;; Created:    06 July 1996
;; Keywords:   tex, wp, faces

The error's back trace when debug-on-error is t shows the following:
----
Debugger entered--Lisp error: (wrong-number-of-arguments (2 . 2) 3)
  jit-lock-force-redisplay(#<buffer foo.Rnw> 48 60)
  font-latex-jit-lock-force-redisplay(#<buffer foo.Rnw> 48 60)
  apply(font-latex-jit-lock-force-redisplay (#<buffer foo.Rnw> 48 60))
  byte-code("r\301\302H\303H\"\210)\301\207" [timer apply 5 6] 4)
  timer-event-handler([t 21804 4831 916000 nil font-latex-jit-lock-force-redisplay (#<buffer foo.Rnw> 48 60) nil 0])
  read-string("Label: " "sec:foo")
  byte-code("\306	\"\211A@\307\n8\310\311!\306
@	\"9\312\211:;\312\211<=\312\211>?\312@\313\n8\204:
----

And `C-h f jit-lock-force-redisplay' reveals:
----
jit-lock-force-redisplay is a compiled Lisp function in `jit-lock.el'.

(jit-lock-force-redisplay START END)

Force the display engine to re-render START's buffer from START to END.
This applies to the buffer associated with marker START.
----
The file `jit-lock.el' gas the following in its header:
;; Author: Gerd Moellmann <gerd <at> gnu.org>
;; Keywords: faces files
;; Package: emacs

;; This file is part of GNU Emacs.

Indeed, the definition of ` font-latex-jit-lock-force-redisplay' begins as follows:
----
(defun font-latex-jit-lock-force-redisplay (buf start end)
  "Compatibility for Emacsen not offering `jit-lock-force-redisplay'."
  (if (fboundp 'jit-lock-force-redisplay)
      (jit-lock-force-redisplay buf start end)
----
So it calls the apparently two-argument jit-lock-force-redisplay with three arguments.

Mario Bourgoin
Senior Data Scientist - Hopkinton
EMC CTD Symmetrix uCode
(508) 249-1297 Direct

-----Original Message-----
From: Tassilo Horn [mailto:tsdh <at> gnu.org] 
Sent: Friday, April 10, 2015 5:27 PM
To: Bourgoin, Mario
Cc: 20295 <at> debbugs.gnu.org
Subject: Re: bug#20295: 11.88.3; AUCTeX, ESS, Noweb, and "Error running timer `font-latex-jit-lock-force-redisplay': (wrong-number-of-arguments (2 . 2) 3)"

"Bourgoin, Mario" <Mario.Bourgoin <at> emc.com> writes:

Hi Mario,

> Error running timer `font-latex-jit-lock-force-redisplay':
> (wrong-number-of-arguments (2 . 2) 3)
>
> Package: 11.88.3

The error says that `font-latex-jit-lock-force-redisplay' was called with a wrong number of arguments, and that 3 arguments where given.  But three is the right number of arguments!

What does `C-h f font-latex-jit-lock-force-redisplay' show?  I think you have a redefinition of that function with a different number of args laying around somewhere.

Bye,
Tassilo

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