Detects POUs, GVLs, data type declarations, or interfaces that do not contain any code

Justification: Empty objects should be avoided. They are often a sign that an object has not been implemented completely. Exception: In some cases, no code is specified in the body of a function block when it should be used by interfaces only. In other cases, a method is created only because it is required by an interface without a sensible implementation being possible for the method. No matter the case, this kind of situation should be commented.

Importance: Medium