The following example shows invalid use of the T parameter within the method. In this case, the constraints paragraph should refer to the generic method's parameter and, instead, it refers to the class parameter.
class-id GenericClass using T.
method-id M2 using U (parm as U).
constraints.
constrain T is reference type.
end method.
end class.
Correct the code to specify a valid parameter with the method - e.g. the constraints paragraph inside the method should refer to a parameter of the generic method which in this case is U.
Or, if the constraints is for the generic class parameter, place that constraints paragraph under the class-id, and not under the method-id:
class-id GenericClass using T.
constraints.
constrain T is reference type.
method-id M2 using U (parm as U).
end method.
end class.