Type-Parameter Patterns for Reusable OOP Testbench Design: Code Examples

class scoreboard #(type REQ_T = int, type RSP_T = REQ_T);
  mailbox #(REQ_T) req_mb;
  mailbox #(RSP_T) rsp_mb;

  function new();
    req_mb = new();
    rsp_mb = new();
  endfunction

  virtual function bit compare(REQ_T req, RSP_T rsp);
    return (req == rsp);
  endfunction
endclass

class eq_policy_default #(type T = int);
  static function bit match(T a, T b);
    return (a == b);
  endfunction
endclass

class checker #(type T = int, type POLICY_T = eq_policy_default#(T));
  function bit matches(T lhs, T rhs);
    return POLICY_T::match(lhs, rhs);
  endfunction
endclass