Getting the hash of any value easily?

[Andrei Alexandrescu via Digitalmars-d]

A coworker asked about the idiomatic way to get the hash of a string in 
D, and somewhat surprisingly the best answer I could find is: "to get 
the hash of an lvalue x, call typeof(x).getHash(&x)."

That's admittedly quite clunky and indirect. Is it worth it to simplify 
that by means of a template in object.di?


Andrei