Passing an array by reference?

[Rishub Nagpal via Digitalmars-d-learn]

  1 class Test
  2 {
  3     int[][] array;
  4     this(ref int[][] d)
  5     {
  6         array = d;
  7     }
  8
  9 }
 10
 11 void main()
 12 {
 13     Test t = new Test([[1,1],[1,1]]);   //does not compile
 14 }
 15

what is the best way to pass a literal ([[1,2],[3,4]]) by 
reference? Is using ref the best way? I am still a bit fuzzy with 
in/out and scope