CODEWITHSUNDEEP
system-veriloguvm
haykp
haykp

Reputation: 445

How to check SV class property existance

I want to check if my class parent class has such property. And if yes, than access to it.

if ( $cast(this.get_parent(), agent_inst) && agent_inst != "NULL" )
        if (agent_inst.vitf != "NULL")
            vitf = agent_inst.vitf;

Now if agent_inst does not have vitf property, the simulator will give an error. So how I can check if agent_inst has the vitf property?

Thanks

Upvotes: 1

Views: 835

Answers (1)

dave_59
dave_59

Reputation: 42748

You have the arguments to $cast backwards; the first argument is the target variable, the second is source. The way $cast works, you should have declared agent_inst with a class type that has a vitf property. The $cast only succeeds at run-time if the source object is type compatible with the target. Your code will not compile unless agent_inst.vitf exists.

Upvotes: 1

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