Changelog for contravariant-1.1
Dayconvolution. The right adjoint of Day convolution is in
kan-extensionsas the right Kan lift. Moving these there to avoid forcing orphan instances. It also rather dramatically reduces the number of extensions required.
- This requires a first digit bump as it breaks several of my own packages.
- Fixed issue with needing
KindSignatureson older GHCs
- Added covariant
Dayconvolution. It isn't contravariant, but it is inspired by the contravariant construction.
- Added instances for
- Fixed compatibility with GHC 7.7 and tightened
instance (Functor f, Contravariant g) => Contravariant (Compose f g). (This is non-canonical, but is necessary to support other packages.)
ComposeCFfor use when modeling phantom type parameters caused mixing