Do not consider uninhabited constructors when performing exhaustive match checking #21750
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dwijnand
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dwijnand
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Oct 10, 2024
Alex1005a
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I changed two tests because the compiler now correctly warns about the unreachable case. |
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During exhaustive match checking, you can suppress warnings for cases where a constructor contains a field of type Nothing, because it is impossible to obtain an instance of this
constructor. For example, Haskell and Ocaml do not issue a warning if the case of a constructor that has a field with typeVoidis not covered.