GNU bug report logs - #71012
30.0.50; tree-sitter crash

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Package: emacs; Reported by: Helmut Eller <eller.helmut@HIDDEN>; dated Fri, 17 May 2024 13:40:01 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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Date: Fri, 17 May 2024 19:00:36 +0300
Message-Id: <86seygfmxn.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
To: Helmut Eller <eller.helmut@HIDDEN>
In-Reply-To: <878r08o3kj.fsf@HIDDEN> (message from Helmut Eller on Fri, 17
 May 2024 17:34:04 +0200)
Subject: Re: bug#71012: 30.0.50; tree-sitter crash
References: <87ttiwpng0.fsf@HIDDEN> <86wmnsfodz.fsf@HIDDEN>
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> From: Helmut Eller <eller.helmut@HIDDEN>
> Cc: Yuan Fu <casouri@HIDDEN>,  71012 <at> debbugs.gnu.org
> Date: Fri, 17 May 2024 17:34:04 +0200
> 
> > Btw, why do you use treesit-parse-string?  The Emacs integration with
> > tree-sitter can parse a buffer without making a string from its
> > contents.
> 
> It's the first time that I use treesit.  I just tried a few things.

There's a chapter about it in the ELisp manual (the node "Parsing
Program Source"), in case you haven't read it.
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#71012; Package emacs. Full text available.

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From: Helmut Eller <eller.helmut@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#71012: 30.0.50; tree-sitter crash
In-Reply-To: <86wmnsfodz.fsf@HIDDEN> (Eli Zaretskii's message of "Fri, 17 May
 2024 18:29:12 +0300")
References: <87ttiwpng0.fsf@HIDDEN> <86wmnsfodz.fsf@HIDDEN>
Date: Fri, 17 May 2024 17:34:04 +0200
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> Btw, why do you use treesit-parse-string?  The Emacs integration with
> tree-sitter can parse a buffer without making a string from its
> contents.

It's the first time that I use treesit.  I just tried a few things.
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#71012; Package emacs. Full text available.

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From: Eli Zaretskii <eliz@HIDDEN>
To: Helmut Eller <eller.helmut@HIDDEN>,
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In-Reply-To: <87ttiwpng0.fsf@HIDDEN> (message from Helmut Eller on Fri, 17
 May 2024 15:39:27 +0200)
Subject: Re: bug#71012: 30.0.50; tree-sitter crash
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> From: Helmut Eller <eller.helmut@HIDDEN>
> Date: Fri, 17 May 2024 15:39:27 +0200
> 
> The code in the attached file tries to parse src/lisp.h but crashes
> while printing the result:  emacs --batch -l ts-bug.el

Yuan, can you help, please?

Btw, why do you use treesit-parse-string?  The Emacs integration with
tree-sitter can parse a buffer without making a string from its
contents.
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#71012; Package emacs. Full text available.

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From: Helmut Eller <eller.helmut@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 30.0.50; tree-sitter crash
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Content-Type: text/plain

The code in the attached file tries to parse src/lisp.h but crashes
while printing the result:  emacs --batch -l ts-bug.el


--=-=-=
Content-Type: application/emacs-lisp
Content-Disposition: attachment; filename=ts-bug.el
Content-Transfer-Encoding: quoted-printable

(require 'treesit)

(with-temp-buffer
  (insert-file-contents "lisp.h")
  (message "%s" (treesit-parse-string (buffer-string) 'c)))





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Content-Type: text/plain



Program received signal SIGSEGV, Segmentation fault.
0x000055555575c33a in buf_bytepos_to_charpos (b=0x555556074c60, bytepos=1)
    at marker.c:343
343       eassert (bytepos >= BUF_Z_BYTE (b)
(gdb) ba 10
#0  0x000055555575c33a in buf_bytepos_to_charpos (b=0x555556074c60, bytepos=1)
    at marker.c:343
#1  0x0000555555853509 in Ftreesit_node_start
    (node=node@entry=XIL(0x55555605b225)) at treesit.c:1927
#2  0x00005555557f3f8a in print_vectorlike_unreadable
    (obj=XIL(0x55555605b225), printcharfun=XIL(0), escapeflag=<optimized out>, buf=0x7fffffff7ef0 "dd\aVUU") at print.c:2051
#3  0x00005555557f1b85 in print_object
    (obj=<optimized out>, printcharfun=<optimized out>, escapeflag=false)
    at print.c:2642
#4  0x00005555557f2cf0 in Fprin1_to_string
    (object=object@entry=XIL(0x55555605b225), noescape=XIL(0x30), overrides=overrides@entry=XIL(0)) at print.c:814
#5  0x00005555557b7c30 in styled_format
    (nargs=2, args=args@entry=0x7fffffffda30, message=message@entry=true)
    at editfns.c:3635
#6  0x00005555557b933f in Fformat_message
    (args=0x7fffffffda30, nargs=<optimized out>) at editfns.c:3388
#7  Fmessage (args=0x7fffffffda30, nargs=<optimized out>) at editfns.c:3185
#8  Fmessage (nargs=<optimized out>, args=0x7fffffffda30) at editfns.c:3154
#9  0x00005555557c6b75 in eval_sub (form=<optimized out>)
    at /scratch/emacs/emacs-git/src/lisp.h:2243
(More stack frames follow...)



In GNU Emacs 30.0.50 (build 6, x86_64-pc-linux-gnu, GTK+ Version
 3.24.38, cairo version 1.16.0) of 2024-05-17 built on caladan
Repository revision: 6ca3a60db3427bc6aef08144c1524920ff3d9c4d
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101007
System Description: Debian GNU/Linux 12 (bookworm)

Configured using:
 'configure --enable-checking --without-native-compiler
 --with-xpm=ifavailable --with-gif=ifavailable
 --with-native-compilation=no --with-tree-sitter'

Configured features:
CAIRO DBUS FREETYPE GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG LIBSELINUX
LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG SECCOMP SOUND
SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XDBE XIM
XINPUT2 GTK3 ZLIB


--=-=-=--
Acknowledgement sent to Helmut Eller <eller.helmut@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#71012; Package emacs. Full text available.
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