Hello Walter,

John Reimer wrote:

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. :-)

Neither affects the vtable layout. They affect the calling convention
(register usage, parameter order, stack cleaning, return value).



Okay, I'm confused then. While I understand that the compiler uses specifically uses extern(...) to describe the calling convention, I /assumed/ that the compiler was detecting this the extern(C++) like so:

extern (C++)
{
 interface D
 {
   int bar(int i, int j, int k);
 }

 D getD();
}


And converting what would normal be a D interface (with RTTI reference in first element of vtable) to a regular vtable compatible with a C++ class type?

How is the vtable made C++ compatible?

-JJR


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