I watch elixir from a distance and don't have that much practical experience in it but this looks like it's too hard to read in order to be that useful imo.
At least I wouldn't use it mostly because of the paranthesis and I really do hope that it's going to be optional if it were to be implemented. I do write code in typed languages on a daily basis but I do think it's overrated especially here on HN. I like that Elixir is dynamically typed and I think that it's just something that's not really in fashion at the moment but it will come around, eventually.
I like dynamic typing too which, contrary to popular belief, doesn't mean I don't care about types. I may start using this when it is released, though, we shall see. Otherwise, don't worry, it will definitely be optional. Elixir is all about backward compatibility and not changing too much. There's an often-uttered reminder when proposals come up on the Elixir forums that there is very little chance there will ever be a v2.0. Anything's possible, of course, but it would be years away.
At least I wouldn't use it mostly because of the paranthesis and I really do hope that it's going to be optional if it were to be implemented. I do write code in typed languages on a daily basis but I do think it's overrated especially here on HN. I like that Elixir is dynamically typed and I think that it's just something that's not really in fashion at the moment but it will come around, eventually.