Restriction on interface function types

[Steve Teale]

On Wednesday, 12 March 2014 at 13:45:30 UTC, Steven Schveighoffer 
wrote:

> What is typeof(x)? It needs to be decided at compile time.
>
> -Steve

OK, squirm, squirm - I misunderstood the examples for typeof.

Will you take a look at my last post on d.learn please. What I 
describe there is the motivation for my squirming. Can you 
suggest a compile-time way of telling ControlSet what class it is 
targeting at the point where an instance of it is declared?

Sorry
Steve