bug#7264: 24.0.50; cc-mode: fontification of enums broken

[Alan Mackenzie <acm@muc.de>]

On Thu, Oct 21, 2010 at 05:11:01PM -0600, Christoph wrote:
> Fontification of enumeration typedefs seems to be broken in the trunk
> (r102035).

> Write the following piece of code to file.c and open it.

> typedef enum
> {
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
   [ snip 190 identical lines ]
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER,
>   MEMBER = _MEMBER
> } MyEnum;

> After the 22nd member, the fontification disappears, i.e. the
> members are not fontified as enumeration members anymore. 

I've just committed a fix for this.  The cause of the partial
fontification was jit_lock's habit of fontifying 500 bytes at a time in
the background.  This reached the 22nd item in the enum block, after
which it had no context for the next lot of 500 bytes.

-- 
Alan Mackenzie (Nuremberg, Germany).