BSD-3-Clause licensed by Nicolas Frisby
Maintained by Nicolas Frisby, Ryan Scott

Module documentation for 0.2.2

This version can be pinned in stack with:[email protected]:8f4eff4818c116fa35f4dbc79dc952605406647107f68853b5c5f0356e95b2a4,2348

invariant

Hackage Hackage Dependencies Haskell Programming Language BSD3 License Build

Haskell98 invariant functors

Changes

0.2.2

  • Add genericInvmap function (and make it the default implementation of invmap for Invariant instances) on GHC 7.2 or later
  • Make Tagged instance poly-kinded

0.2.1

  • Add Foldable and Traversable instances for WrappedFunctor
  • Fixed build on GHC HEAD

0.2

  • Support deriving Invariant and Invariant2 instances with Template Haskell
  • Added invmapFunctor, invmapContravariant, invmap2Bifunctor, and invmap2Profunctor to make defining Invmap and Invmap2 instances somewhat easier
  • Added WrappedFunctor, WrappedContravariant, WrappedBifunctor, and WrappedProfunctor data types to allow use of invmap and invmap2 for data types that aren’t Invariant or Invariant2 instances.
  • Added Invariant instances for lazy ST, ArrowMonad, Handler, Identity, First, Last, Alt, Proxy, ArgDescr, ArgOrder, and OptDescr
  • Added Invariant and Invariant2 instances for data types in the array, bifunctors, containers, profunctors, semigroups, stm, tagged, transformers, and unordered-containers libraries

0.1.2

  • Add Invariant instances for Dual and Endo

0.1.1

  • Bump contravariant upper version bounds

0.1.0

  • Initial commit