// it would be nice if Arr.data.len == Arr.len (: but this will require some C code...
Arr ::= fn (t :: Type) Type {
	// struct {
	// 	   data : []t;
	// 	   len, cap : int;
	// }
	t
};

arr_add ::= fn(t :: Type, a : &Arr(t), x : t) {
};

main ::= fn() {
	 arr : Arr(int);
	 for i := 1..100 {
	 	   arr_add(int, &arr, 3);
	 }
};