From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Alan Mackenzie <acm@muc.de>
Cc: 10664@debbugs.gnu.org
Subject: bug#10664: 24.0.93; JIT font-lock infloops in a C file
Date: Wed, 08 Feb 2012 14:28:53 -0500 [thread overview]
Message-ID: <jwv1uq586rs.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <20120208114749.GA3523@acm.acm> (Alan Mackenzie's message of "Wed, 8 Feb 2012 11:47:49 +0000")
>> > For one particular fontification in socket.c, the "safe position" is 500
>> > bytes back from the starting point, so jit-lock is pushed back these 500
>> > bytes, fontifies the next 500 bytes (`jit-lock-chunk-size'), then has its
>> > new start position set back 500 bytes, rinse, spin, repeat.
>> Why is "jit-lock pushed back"?
> Build Emacs revision #106728. emacs -Q, then create the following C++
> buffer:
> #########################################################################
> 1 template <typename T>
> 2
> 3
> 4 void myfunc(T* p) {}
> #########################################################################
> This is fontified correctly. Type a space on L2. This is OK for half a
> second, then context fontification messes up L4. The correct
> fontification can only be restored by a change to L4.
That explains why *font-lock* needs to be applied to "L1-L4", but now
why *jit-lock* needs to be affected.
Stefan
next prev parent reply other threads:[~2012-02-08 19:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-30 18:23 bug#10664: 24.0.93; JIT font-lock infloops in a C file Eli Zaretskii
2012-02-05 18:18 ` Eli Zaretskii
2012-02-06 11:09 ` Alan Mackenzie
2012-02-06 14:39 ` Stefan Monnier
2012-02-06 17:04 ` Eli Zaretskii
2012-02-07 17:30 ` Eli Zaretskii
2012-02-07 19:20 ` Alan Mackenzie
2012-02-07 20:58 ` Eli Zaretskii
2012-02-07 21:34 ` Alan Mackenzie
2012-02-07 23:39 ` Stefan Monnier
2012-02-08 11:47 ` Alan Mackenzie
2012-02-08 17:49 ` Eli Zaretskii
2012-02-08 19:28 ` Stefan Monnier [this message]
2012-02-10 11:28 ` Alan Mackenzie
2012-02-12 20:57 ` Eli Zaretskii
2012-02-14 5:42 ` Chong Yidong
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