How to extend from a class present in the scope of a system verilog interface?

Question

I was going through this since some of my UVC use this methodology:

https://www.doulos.com/knowhow/sysverilog/uvm/easier_uvm_guidelines/parameterized_interface/

But i want to extend the class in the interface and add/override some more functionality.

But when i tried to override the class, the compiler could not find the class, since it is scoped in the interface.

Any suggestions as to how I can override the class instead of re-implementing all the functions?

Thanks in advance.

dave_59 dave_59 · Accepted Answer · 2018-02-10T02:22:48

That is one problem with using this methodology - you can only extend the class from within the interface. But that is no different from using a virtual interface — you cannot extend the interface.

The best thing you could do in put the extended class inside the interface. Use the factory to override the construction of the class.

How to extend from a class present in the scope of a system verilog interface?

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