delphi - Function of a class returning an array that is declared after the class -

i somehow haven't dealt problem before. have class

  troom = class    private      width, length, x1,x2,y1,y2, index: integer;    public      function draw: roomarr;            procedure setparam;      function getparam: integer;   end; 

now, below that, because delphi 7 can't return arrays of tclass, have declared this:

roomarr = array of troom; 

this somehow fixes problem. no idea why, found solution on internet

i using "roomarr" in other functions , works fine, expected. array declared after class (otherwise not know class troom), troom (more precisely function "draw") cannot use it.

is there way bypass problem?

thanks in advance.

a forward declaration of troom:

type   troom = class; // forward declaration    roomarr = array of troom;    troom = class     ...     function draw: roomarr;   end; 

the forward declaration must completed in same type section.