Documentation for `VariantArray` and `VariantNames` say their `VARIANTS` constants are arrays, but they're actually slices about strum

[T0mstone]

Wow, I was about to write the same issue. What a coincidence!

You're right, making them true arrays won't work yet, since associated types aren't allowed to depend on associated constants. A workaround would be to make the array length a generic parameter of the trait, but that's pretty unwieldy, in addition to being semantically completely wrong.

I would be in favor of the macros also generating an inherent associated constant which is a true array. That way we can at least use the constant length in non-generic code.

[Peternator7]

There was discussion when the features were added about slices vs arrays. Like @T0mstone said, associated constants still aren't great to use. It also makes adding a new variant to an enum a breaking change because the length of the array changes, but slices don't have that issue.