What Is Jats?

Gats is a new feature in Haskell that lets you do wacky and crazy things with types of types signatures. There are some caveats to this initial landing of Gats, but the basic premise here is just now you can have Associated types that are themselves generic. John: I don't understand all of the debate here because isn't this just higher order type programming like Haskell has had this since like 1998 obviously it's a it's a monad in the category of endo-thunkers come on.

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