The D way of returning tuples is:
T!(int,int) ret;
auto f = (ref T!(int,int) r){ r = e; };
f(ret);
It doesn't look so bad if you think about it. The tuple is first stack allocated. It doesn't trigger heap allocation. High level scripting languages always cause extra heap allocation if you do
auto f = { return (1,2); };
It's much faster the D way.