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base-orphans: Backwards-compatible orphan instances for base

[ compatibility, library, mit ] [ Propose Tags ]

base-orphans defines orphan instances that mimic instances available in later versions of base to a wider (older) range of compilers. base-orphans does not export anything except the orphan instances themselves and complements base-compat. See the README for what instances are covered: https://github.com/haskell-compat/base-orphans#readme. See also the what is not covered section.

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Versions 0, 0.1.0, 0.2.0, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.4.0, 0.4.1, 0.4.2, 0.4.3, 0.4.4, 0.4.5, 0.5.0, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.6, 0.7 (info)
Change log CHANGES.markdown
Dependencies base (>=4.3 && <4.9), ghc-prim [details]
License MIT
Copyright (c) 2012-2015 Simon Hengel, (c) 2014 João Cristóvão, (c) 2015 Ryan Scott
Author Simon Hengel <sol@typeful.net>, João Cristóvão <jmacristovao@gmail.com>, Ryan Scott <ryan.gl.scott@gmail.com>
Maintainer Simon Hengel <sol@typeful.net>, João Cristóvão <jmacristovao@gmail.com>, Ryan Scott <ryan.gl.scott@gmail.com>
Revised Revision 2 made by phadej at Wed Apr 13 10:30:23 UTC 2016
Category Compatibility
Home page https://github.com/haskell-compat/base-orphans#readme
Bug tracker https://github.com/haskell-compat/base-orphans/issues
Source repo head: git clone https://github.com/haskell-compat/base-orphans
Uploaded by ryanglscott at Fri Aug 14 02:25:07 UTC 2015
Distributions Arch:0.7, Debian:0.4.5, Fedora:0.6, FreeBSD:0.4.4, LTSHaskell:0.7, NixOS:0.7, Stackage:0.7, openSUSE:0.7
Downloads 84539 total (336 in the last 30 days)
Rating 2.0 (votes: 1) [estimated by rule of succession]
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Status Docs available [build log]
Last success reported on 2015-08-14 [all 1 reports]
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Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

For package maintainers and hackage trustees

Readme for base-orphans-0.4.4

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base-orphans Hackage version Build Status

Scope

base-orphans defines orphan instances that mimic instances available in later versions of base to a wider (older) range of compilers. base-orphans does not export anything except the orphan instances themselves and complements base-compat.

Note that base-orphans doesn't cover every possible instance. See the What is not covered section for exceptions.

Usage

To use base-orphans, simply import Data.Orphans ().

What is covered

  • Added Applicative and Alternative instances for ReadP and ReadPrec
  • Added Bits, Bounded, and Integral instances for CDev
  • Added Eq and Ord instances for Control.Exception.ErrorCall
  • Added Eq, Ord, Read, and Show instances for data types in GHC.Generics
  • Added Functor, Applicative, Alternative, and MonadPlus instances for ArrowMonad
  • Added Functor, Applicative, and Monad instances for First and Last
  • Added Monoid, Eq, Ord, Read, and Show instances for Const
  • Added Read and Show instances for Down
  • Added Eq, Ord, Read, and Show instances for ZipList
  • Added Monad instance for WrappedMonad
  • Added Data and IsList instances for Version
  • Applicative instance for strict and lazy ST
  • Bits instance for Bool
  • Foldable instance for Either, (,) and Const
  • Functor instance for Handler, ArgOrder, OptDescr, and ArgDescr
  • Num instance for Sum and Product
  • Read instance for Fixed
  • Show instance for Fingerprint
  • Storable instance for Complex and Ratio
  • Traversable instance for Either, (,) and Const
  • Typeable instance for most data types, typeclasses, and promoted data constructors (when possible)

What is not covered

base-orphans does not define the following instances:

Supported versions of GHC/base

  • ghc-7.10.2 / base-4.8.1.0
  • ghc-7.10.1 / base-4.8.0.0
  • ghc-7.8.4 / base-4.7.0.2
  • ghc-7.8.3 / base-4.7.0.1
  • ghc-7.8.2 / base-4.7.0.0
  • ghc-7.8.1 / base-4.7.0.0
  • ghc-7.6.3 / base-4.6.0.1
  • ghc-7.6.2 / base-4.6.0.1
  • ghc-7.6.1 / base-4.6.0.0
  • ghc-7.4.2 / base-4.5.1.0
  • ghc-7.4.1 / base-4.5.0.0
  • ghc-7.2.2 / base-4.4.1.0
  • ghc-7.2.1 / base-4.4.0.0
  • ghc-7.0.4 / base-4.3.1.0
  • ghc-7.0.3 / base-4.3.1.0
  • ghc-7.0.2 / base-4.3.1.0
  • ghc-7.0.1 / base-4.3.0.0

We also make an attempt to keep base-orphans building with GHC HEAD, but due to its volatility, it may not work at any given point in time. If it doesn't, please report it!

Patches are welcome; add tests for new code!