Templated opIndex?

[Ola Fosheim Grøstad via Digitalmars-d-learn]

And this?

auto ref qua(T)(Test t){
   struct wrap {
     Test t;
     T opIndex(int i){ return t.opIndex!T(i); }
   }
   return wrap(t);
}


void main()
{
	auto test = new Test();
	writeln(test.qua!string[0], test.qua!int[0]);
}