I think the issue when you try to change the signature of a subclass, is that any subclass should be assignable to their superclass.
See in the example: Playground
You can run it and see the error. I understand that in your point of view you could perfectly handle that case, but that's a sample use case.
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I think the issue when you try to change the signature of a subclass, is that any subclass should be assignable to their superclass.
See in the example: Playground
You can run it and see the error. I understand that in your point of view you could perfectly handle that case, but that's a sample use case.