Enums are a bit leaky, though, because C# enums can just have any old `int` chucked into them, so you really do need the final arm of the `match`. `(EnumA)100`

Enums are a bit leaky, though, because C# enums can just have any old `int` chucked into them, so you really do need the final arm of the `match`. `(EnumA)100` will compile just fine!