RE: [sv-bc] Proposal for Interface Specialization in Port Declarations

This is related to Mantis 2573 ("allow parameter selected from an interface port to be a constant expression").

Shalom

> (2)
> interface video_bus#(parameter w=8);
> logic valid; logic [w:1] data;
> endinterface
>
> module multiply_by_2 (
> intf_video_bus bus_in,
> intf_video_bus#(.w(bus_in.w+1)) bus_out
> );
>
> Here, the two interfaces that need to be connected have a certain
> relationship. One does not care about the parametrisation of the
> incoming 'bus_in', but 'bus_out' must have one more bit than
> 'bus_in'.
> The language currently has no way to describe this intent.

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