gengtype and inheritance

[David Malcolm]

On Thu, 2013-03-28 at 10:06 -0400, Diego Novillo wrote:
> On Thu Mar 28 08:53:03 2013, Richard Biener wrote:
> 
> >
> > Eh - in fact you _promised_ to do that in trade for accepting the C++
> > conversion!
> > Never trust promises from google ... *sigh*
> 
> 
> You need to calm down. This childish attitude is insulting and 
> counterproductive.
> 
> The gengtype conversion was part of our plan all along. It's an obvious 
> continuation of the conversion.
> 
> My time is finite and my priorities are dictated by other agents. If I 
> say that they are plans for now, it's because I have not had time to 
> work on it. That should not stop anyone, because we have the necessary 
> base to do this particular implementation.
> 
> >
> > Now we are in the exact situation I was feared about - people will start
> > hacking around the C++ gengtype limitations in various ways instead of
> > doing it properly (because "those plans are just plans").
> 
> Anyone can implement the specific aspect of the gengtype plan by using 
> manual markers (which is exactly what I had in mind).
> 
> We already have two classes doing that, in fact.  

I tried grepping for these, but didn't see any.  Where are these?  Is
this in svn trunk, or in a branch?

Sorry if this is a silly question.

> There is no need to 
> hack around limitations in gengtype.  You simply supply manual markers.  
> The support is already there.