Inheritance and Polymorphism

SystemVerilog
, ,
1 
class base;

  task A;
    $display("A called");
    B();
  endtask

  virtual task B;
    $display("B Called");
  endtask
endclass

class child extends base;

  task B;
     $display("B EXT called");
  endtask

  task super_A();
     super.A();
  endtask

endclass

module test;
  initial begin
      base bh;
      child ch;
      ch = new();
      ch.A;
      bh = ch;
      bh.super_A();
  end
endmodule

What is the output of this code?

2

In reply to MarshallX:

It will issue compile time error.
Like, super_A not found in “bh”. As super_A not part of base class.
What is your query on this. I mean what is your expectations ?

Thanks!

3

In reply to MarshallX:

Using parent class handle we can access only the overridden virtual methods of child class. As the method super_A is not the overridden virtual method in child class we can not access it using parent handle.

4

In reply to shanthi:

In reply to MarshallX:
Using parent class handle we can access only the overridden virtual methods of child class. As the method super_A is not the overridden virtual method in child class we can not access it using parent handle.

Thanks much for the information. It’s true with overridden virtual functions.