Use associated constants for ArrayLength?

[matklad]

Hi!

Rust recently gained an ability to specify associated constants in traits, and I wonder if we can use it to simplify GeneritArray. My current experiments are here: matklad@20be18b

Looks like it's not working at this time though :(

[burdges]

Associated constants do not work in array lengths yet rust-lang/rust#44168 not even on nightly.

I'd think folks should remove the dependency on generic-array entirely once that bug gets fixed and all the bits get stabilized. I donno if there is any need to change this crate, merely phase it out eventually.

[matklad]

Yeah, I've played a bit more with it and I see now the limitations of associated constants, and it's reasonable to asume that, once they are fixed, we'll have proper const type parameters!