[xmlvm-users] Extending the C++ backend

[Tom F. <ant...@gm...>]

I've begun work on extending the C++ backend to support a 3rd party library
and a bit of the stl (with more to come hopefully).  I'm still wrapping my
head around the xmlvm style of doing things and I've come to a bit of a
roadblock.  The library I'm porting uses pointers to classes extensively.
Right now I'm unable to use, for example, a function that returns a pointer
to a class:

  MyClass *mc =  getMyClass();

Actually returning the class works fine but if I do it like this the
generated code is an XMLVM::Object_Ptr<java::lang::Object> not a MyClass
pointer.

I've poked around the objc iPhone stuff to see if I could find out how to do
this and I see things like this:

   _op1.o = [((org_xmlvm_iphone_UIScreen*) _stack[_sp].o) applicationFrame];

where _op1 is an XMLVMElem that's being treated as an id.  It seems like I
could do something similar with pointers in C++ but I'm not sure where to go
to implement this.  Hopefully I've made some sense - any push is the right
direction is greatly appreciated.  Thanks,

Tom