Interfacing with XPCOM

[John Reimer]

Hello John,

> Hello Walter,
> 
>> So are you saying that XPCOM will work on Linux with D if only the
>> extern(Windows) was actually extern(C++) ?
>> 
> Just to make this clear, I'm banking on that the fact that extern(C++)
> on an interface should also remove the necessity to alias to a COM
> interface on linux.  I am guessing that extern(C++) makes a vtable the
> same as COM minus the extern(Windows) decoration.  If this is not
> exactly true, then my hypothesis won't hold. :-)
> 
> -JJR
> 


One more detail:

I just want to emphasize that solution to this is important primarily for 
the sake of compiler portability.  At this point, dwt Browser code compiles 
fine with dmd (at this point, only with dmd), but with the hacks I've used, 
there are certainly no guarantees that it will ever work with other compilers. 
 Finding a clean way to implement this is therefore fairly important, I think. 
 And since I'd consider XPCOM/Mozilla a significant niche in software development 
- especially in crossplatform software development - I think this only emphasizes 
the necessity of getting this working nicely. :)

That said, I'll try to cook up an example using dmd 2.0 to see if this will 
work with extern(C++).

-JJR