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CHANGELOG.md

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0.9.5 [2024.05.12]

  • Require singletons-base-3.4 and GHC 9.10.

0.9.4 [2023.10.13]

  • Require singletons-base-3.3 and GHC 9.8.

0.9.3 [2023.03.12]

  • Require singletons-base-3.2 and GHC 9.6.

0.9.2 [2023.02.27]

  • Support building with th-abstraction-0.5.*.

0.9.1 [2022.08.23]

  • Require GHC 9.4.
  • Add Data.Eliminator.TypeLits, which re-exports Data.Eliminator.TypeNats.elimNat and adds a new elimSymbol eliminator for GHC.TypeLits.Symbol.

0.9 [2021.10.31]

  • Require singletons-base-3.1 and GHC 9.2.
  • Add {e,E}limProxy to Data.Eliminator.
  • Data.Eliminator no longer exports {e,E}limFirst and {e,E}limLast eliminators. If you wish to use eliminators that work over First/Last from Data.Monoid, you must import them Data.Eliminator.Monoid. If you wish to use eliminators that over First/Last from Data.Semigroup, you must import them from the new Data.Eliminator.Semigroup module.
  • Data.Eliminator no longer exports {e,E}limProduct and {e,E}limSum eliminators. If you wish to use eliminators that work over Product/Sum from Data.Monoid or Data.Semigroup, you must import them Data.Eliminator.Monoid or Data.Eliminator.Semigroup. If you wish to use eliminators that over Product/Sum from Data.Functor.Product/Data.Functor.Sum, you must import them from the new Data.Eliminator.Functor module.

0.8 [2021.03.12]

  • Require singletons-base-3.0 and GHC 9.0.
  • Remove eliminators for Data.Semigroup.Option, which is deprecated as of base-4.15.0.0.

0.7 [2020.03.25]

  • Require singletons-2.7 and GHC 8.10.
  • Add experimental support for generating type-level eliminators through the deriveTypeElim and deriveTypeElimNamed functions.
  • Add eliminators for All, Any, Arg, Const, Down, Dual, First, Identity, Last, Max, Min, Option, Product, Sum, and WrappedMonoid.

0.6 [2019.08.27]

  • Require singletons-2.6 and GHC 8.8.

0.5.1 [2019.04.26]

  • Support th-abstraction-0.3.0.0 or later.

0.5 [2018.09.18]

  • Require singletons-2.5 and GHC 8.6.

0.4.1 [2018.02.13]

  • Add elimVoid to Data.Eliminator.

0.4 [2018.01.09]

  • Require singletons-2.4 and GHC 8.4.

0.3 [2017-11-07]

  • Migrate the old elimNat from Data.Eliminator (which worked over the Nat from GHC.TypeNats) to Data.Eliminator.TypeNats. There elimNat that now lives in Data.Eliminator is for an unrelated Nat data type from the singleton-nats package (which is a proper, inductively defined, Peano natural number type).

0.2 [2017-07-22]

  • Introduce the Data.Eliminator.TH module, which provides functionality for generating eliminator functions using Template Haskell. Currently, only simple algebraic data types that do not use polymorphic recursion are supported.
  • All eliminators now use predicates with (~>).

0.1 [2017-07-02]

  • Initial release.