deriving-compat: Backports of GHC deriving extensions
deriving-compat
provides Template Haskell functions that
mimic deriving
extensions that were introduced or modified
in recent versions of GHC. Currently, the following
typeclasses/extensions are covered:
Deriving
Bounded
Deriving
Enum
Deriving
Ix
Deriving
Eq
Deriving
Ord
Deriving
Read
Deriving
Show
DeriveFoldable
DeriveFunctor
DeriveTraversable
GeneralizedNewtypeDeriving
(with GHC 8.2 or later)DerivingVia
(with GHC 8.2 or later)
See the Data.Deriving module for a full list of backported changes.
In addition, deriving-compat
also provides some additional
deriving
functionality that has not yet been merged into
upstream GHC. Aside from the GHC deriving
extensions
mentioned above, deriving-compat
also permits deriving
instances of classes in the Data.Functor.Classes
module,
covering the Eq1
, Eq2
, Ord1
, Ord2
, Read1
,
Read2
, Show1
, and Show2
classes. This extra
functionality is outside of the main scope of
deriving-compat
, as it does not backport extensions that
exist in today's GHC. Nevertheless, the underlying Template
Haskell machinery needed to derive Eq
and friends
extends very naturally to Eq1
and friends, so this extra
functionality is included in deriving-compat
as a
convenience.
Note that some recent GHC typeclasses/extensions are not covered by this package:
DeriveDataTypeable
DeriveGeneric
, which was introducted in GHC 7.2 for derivingGeneric
instances, and modified in GHC 7.6 to allow derivation ofGeneric1
instances. UseGenerics.Deriving.TH
fromgeneric-deriving
to deriveGeneric(1)
using Template Haskell.DeriveLift
, which was introduced in GHC 8.0 for derivingLift
instances. UseLanguage.Haskell.TH.Lift
fromth-lift
to deriveLift
using Template Haskell.The
Bifunctor
typeclass, which was introduced in GHC 7.10, as well as theBifoldable
andBitraversable
typeclasses, which were introduced in GHC 8.2. UseData.Bifunctor.TH
frombifunctors
to derive these typeclasses using Template Haskell.
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Downloads
- deriving-compat-0.6.7.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
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Versions [RSS] | 0.1, 0.2, 0.2.1, 0.2.2, 0.3, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.6, 0.4, 0.4.1, 0.4.2, 0.4.3, 0.5, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 0.5.8, 0.5.9, 0.5.10, 0.6, 0.6.1, 0.6.2, 0.6.3, 0.6.4, 0.6.5, 0.6.6, 0.6.7 (info) |
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Change log | CHANGELOG.md |
Dependencies | base (>=4.9 && <5), containers (>=0.1 && <0.8), ghc-boot-th, ghc-prim, template-haskell (>=2.11 && <2.24), th-abstraction (>=0.5 && <0.8), transformers (>=0.5 && <0.7), transformers-compat (>=0.5) [details] |
Tested with | ghc ==8.0.2, ghc ==8.2.2, ghc ==8.4.4, ghc ==8.6.5, ghc ==8.8.4, ghc ==8.10.7, ghc ==9.0.2, ghc ==9.2.8, ghc ==9.4.8, ghc ==9.6.6, ghc ==9.8.4, ghc ==9.10.1, ghc ==9.12.1 |
License | BSD-3-Clause |
Copyright | (C) 2015-2017 Ryan Scott |
Author | Ryan Scott |
Maintainer | Ryan Scott <ryan.gl.scott@gmail.com> |
Category | Compatibility |
Home page | https://github.com/haskell-compat/deriving-compat |
Bug tracker | https://github.com/haskell-compat/deriving-compat/issues |
Source repo | head: git clone https://github.com/haskell-compat/deriving-compat |
Uploaded | by ryanglscott at 2024-12-06T00:37:12Z |
Distributions | Arch:0.6.6, Debian:0.5.9, LTSHaskell:0.6.7, NixOS:0.6.6, Stackage:0.6.7 |
Reverse Dependencies | 24 direct, 49 indirect [details] |
Downloads | 47469 total (334 in the last 30 days) |
Rating | (no votes yet) [estimated by Bayesian average] |
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Status | Docs available [build log] Last success reported on 2024-12-06 [all 1 reports] |