Not be able to access type override object properties?

UVM
4

In reply to Minzhen:

Hi Dave,

I ran below code to access the override class properties but i am unable to achieve this.Could you please help me how to access properties of override class…

class driver extends uvm_driver;
`uvm_component_utils(driver)
//new
endclass

class driver_extended extends driver;
`uvm_component_utils(driver_extended)

 string str_val ="RAM";

//new
endcalss

class agent extends uvm_component;
`uvm_component_utils(agent)
driver drv;
//new
function build();
 drv = driver::type_id::create("drv",this);
endfunction

endclass

class test_factory extends uvm_test;
 agent ag1;
 function new(string name="test",uvm_component parent=null);
  factory.set_type_override_by_type(driver::get_type(),driver_extended::get_type(),"*"); // overriding component
  ag1 = agent::type_id::create("ag1",this);
 endfuction

 task run();
  `uvm_info("VALUE",$psprintf("%s",ag1.drv.str_val),UVM_LOW)
  #100;
  global_stop_request();
 endtask
endclass

For above code,compiler complains as below
str_val is not a class item.