alias template parameter

[Sergei Nosov]

Hi!

I've been thinking about how alias template parameters work and 
I'm really confused =)

It makes perfect sense for literals, names, etc. But what I can't 
get is how does it work for delegates.

If I have a function
auto apply(alias fun, T...)(T args)
{
     return fun(args);
}

And then I have
int y = 2;
apply!(x => y)(1);

How in the world does this work? Is the context address known at 
compile-time?