...R) { }

  T[] toArray() {
    T[] ret; //  = new T[this.length];
    return ret;
  }
  alias toArray this;
}

class...

...R) { }

  T[] toArray() {
    T[] ret = new T[this.length];
    return ret;
  }
  alias toArray this;
}

class...

...U;}
  }

  T[] toArray() {
    T[] ret = new T[this.length];
    return ret;
  }

  alias toArray this;

  Range...

...addsd   %xmm1,    %xmm2
    movsd   %xmm2,    8(%eax)
    ret $32

__D12test_complex5mult2FNhG2dNhG2dZNhG2d:
    pshufd   $238,  %xmm1, %xmm3...

...goto finally;
    }

    goto_finally_if_null(ret_result);
    *ret_result = 0;

    p = calloc(/* ... */);
    goto_finally...

...pop EDI
        pop ESI
        pop EBX
        leave
        ret


If the range of 'i' is propagated...

...format unittests:

////////////////////////////////////
enum size = 5;

char[size] ret()
{
    char[size] hello = "hello world"[0..size...

...rbp]
  0000000000000028: 5D                 pop         rbp
  0000000000000029: C3                 ret

_D4test15__unittestL13_1FZv:
  0000000000000000: 55                 push        rbp...

...mov     EAX, [EAX];
			ret;
		}
		else version(Win64) asm
		{
			naked;
			mov     RAX, [RCX];
			ret;
		}
		else version...

...string ret,size_t i,Args...)
  {
    static if( Args.length == 0 )
    {
      enum Loop = ret;
    }
    else...