Migrating dmd to D?

[Daniel Murphy]

"Iain Buclaw" <ibuclaw at ubuntu.com> wrote in message 
news:mailman.235.1362482490.14496.digitalmars-d at puremagic.com...
>
> I think C++ classes would be more ill to implement than what I see
> initially in that link.
>

All that pull request implements is some extended C++ mangling, for windows, 
and not very well.

> Mangling is another problem as well.  I've seen differing C++ compilers
> have subtle differences.  I'll try to find one discrepancy between D and
> g++.

Mangling is a large part of the work, but is really not that hard.  I do 
think we need to move the windows c++ mangling into the frontend.  most of 
the g++ mangling code is already there.

The list is pretty short:
- global functions
- global variables
- static members functions
- virtual member functions
- normal member functions
- static member variables
- normal member variables

If we have the mangling and abi working for all of those, I think that 
should be enough to implement the glue layer in C++ with all the ast classes 
written in D.

No need for the messy stuff like stack allocation semantics and 
constructors/destructors.