Brendan Eich wrote:
>
> > I have a simple question about IDL files. It seems that all throughout
> > the mozilla source, IDL files contain CIDs, ContractIDs, and often
> > factory methods in %{C++ %} blocks. These things correspond to a
> > particular implementation of the interface (or, in the case of
> > ContractIDs, to a particular class of implementations), right?
I think that putting the ContractID in the IDL file is a worthwhile
practice. (In the absence of a more capable Component Description
Language.) This makes it possible for component clients to instantiate
a component without having to search through C++ files.
There will of course be cases where multiple ContractIDs return a
component which implements a given interface, but in many cases today
there is only implementation of a given interface. So listing a
"default" ContractID will be more helpful than not most of the time.
But maybe I'm missing some long term consequences...
- Mike.
