impossible

Set of data and type definitions of impossible types. Impossible types are useful when declaring type classes / type families instances that should not be expanded by GHC until a specific type is provided in order to keep the types nice and readable.

https://github.com/luna/impossible

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.