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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, 0.8 (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:0.8, Debian:0.4.5, Fedora:0.6, FreeBSD:0.4.4, LTSHaskell:0.7, NixOS:0.8, Stackage:0.8, openSUSE:0.8
Downloads 85683 total (576 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

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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!