Correct interpretation of extended class with different parameter than base class?

SystemVerilog
,
2

In reply to basarts:

It would help to show a complete example and what different interpretations you are seeing from you you were expecting.

Note that I think you have declared two different parameters X. When you declare A::X, it hides B::X from direct access.

module top;
  
  class B #(parameter X = 2) ;
    function new;
      $display("B::X: %d",X);
    endfunction
  endclass
  class A #(parameter X = 2) extends B #(.X(1));
    function new;
      $display("A::X: %d B::X: %d",X,B::X);
    endfunction
  endclass
  
  A#(3) a = new;
  
endmodule


# B::X:           1
# A::X:           3 B::X:           1