void something(T, string property)() {

​

  // in THIS context is T a class

  // property = "data"

​

  alias S = __traits(getMember, T, property);

​

  // typeof(S) = foo!bar

​

  static if (isCallable!S) {

      // some other magic

  }

​

  // ...

​

}

​

struct foo(T) {

  T get() {

        static if (is(T : bar)) {

            if (value is null) {

                value = fun!T("id", 123);

            }

        }

        return value;

    }

    T value;

    alias get this;

}

​

TDobj fun(TDobj, T)(string propertyName, T needle) if (is(TDobj : bar)) {

   TDobj[] list = loadAllMatched!TDobj(propertyName, needle, 1);

   return list.length > 0 ? list[0] : null;

}