Does tool support GENERIC and SUBTYPE?

[iDoka]

During translation I have several errors like:

1. syntax error, unexpected NAME at "subtype" in line 187.

    subtype states IS natural RANGE 0 TO 19;

2. syntax error, unexpected IN, expecting INTEGER or BIT or BITVECT or NAME at "IN" in line 15.

    GENERIC(
          baud_rate : IN NATURAL RANGE 1200 TO 500000);

How can I fix this behaviour?