Specman反思：如何使用get_method（）？

Question

Hi I would like to write a general method check_range() that gets as parameter raw_type ( vin or vout or il etc.) and according to the raw_type calls relevant method calc_vin() or calc_vout() etc. I try to use reflection get_method() for it:

type raw_t : [vin, vout, il, iin];
...
extend my_unit {

    check_range(raw_type : raw_t) : uint {
        var meth_name : string = appendf("calc_%s", raw_type);
        var meth : rf_method = me.get_method(meth_name); //This line causes an error
        // ....
    };

    calc_vout() is {
        // Calculates Vout
    };

};

When I invoke the check_range() method I get the error :

Error: 'me' (of type my_unit_u) does not have 'get_method()' method.

How can I approach the calc_vout() method using reflection get_method() ? Really appreciate your help

Answer 1

In order to work with the reflection facility, you need to use the "rf_struct" of my_unit_u.

Specifically, try the following:

type raw_t : [vin, vout, il, iin];
...
extend my_unit {

check_range(raw_type : raw_t) : uint {
    var meth_name : string = appendf("calc_%s", raw_type);
    var my_unit_rf := rf_manager.get_struct_of_instance(me);
    var meth : rf_method = my_unit_rf.get_method(meth_name); 
    // ....
};

calc_vout() is {
    // Calculates Vout
};

};