this is a handle to the current class object. Useful for accessing class members re-declared within a local scope super is a handle to the parent class object. Essential for accessing parent class members hidden in subclass For example, constructor Only 1 super allowed at a time. super.super.new() is illegal. The existence of a parent class can be tested for
01.class base;
02.logic b1;
03.protected logic c1;
04.
05.function new(input logic pone);
06.b1 = pone;
07.endfunction
08.endclass
09.
10.class sub1 extends base;
11.logic [1:0] b1;
12.local integer length;
13.
14.function new(input logic pone);
15.super.new(pone);
16.this.b1 = super.b1;
17.endfunction
18.endclass
19.
20.class sub2 extends sub1;
21....
22.function new(input logic pone);
23.super.new(pone);
24.endfunction
25.endclass
