Inheritance reduces duplication in code. In fact the original "wrong" approach can be written with less code and allows for polymorphism which is a core tenant of OOP. E.g. in Java Shape is a base interface for many shape objects.
The problem with IS A relates to overuse and detachment from semantics. Using it instead of composition etc. But having a common based class or hierarchy, that's good.
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Inheritance reduces duplication in code. In fact the original "wrong" approach can be written with less code and allows for polymorphism which is a core tenant of OOP. E.g. in Java Shape is a base interface for many shape objects.
The problem with
IS Arelates to overuse and detachment from semantics. Using it instead of composition etc. But having a common based class or hierarchy, that's good.Yes!
That is exactly why this is just a "smell" and not a directive.
I agree with you overuse and detachment from semantics are the symptoms