Re: [PATCH] varobj.c: Report changed values that use a pretty-printer

[Tom Tromey <tromey@redhat.com>]

>>>>> "Nick" == Nick Roberts <nickrob@snap.net.nz> writes:

Nick> No problem, it was only a small patch.  Were you aware that
Nick> changed values aren't reported?  Does your patch fix the problems
Nick> that I mentioned?

Yeah, it should fix those problems.

Tom> GCC svn trunk has pretty-printers for basically everything in
Tom> libstdc++ :-)

Nick> Cool!  Will they be distributed as part of the libstdc++ package
Nick> files?  i.e. with future GNU/Linux distributions

Yes, they are installed in a way that lets them auto-activate, if the
distro configures everything properly.  We're already doing this in
Fedora 11.

Tom> I'd like to write printers for some other programs (gdb, or gcc, or
Tom> python, or emacs) but haven't found the time ...

Nick> I'm not sure what you mean.  I was thinking of writing lisp code
Nick> so that Emacs can parse the output of the pretty printers like the
Nick> ones you describe above.

At least gcc, emacs, and python all have their own complicated .gdbinit
files with commands to help print data structures more nicely.  I think
it would be nice to convert these to use the pretty-printer
infrastructure.  This provides a couple concrete advantages: it works
better with MI, and it works in stack traces.

Tom