Portability	portable
Maintainer	libraries@haskell.org

Language.Haskell.Extension

Description

Haskell language extensions

Synopsis

Documentation

data Extension Source

This represents language extensions beyond Haskell 98 that are supported by some implementations, usually in some special mode.

Constructors

OverlappingInstances
UndecidableInstances
IncoherentInstances
RecursiveDo
ParallelListComp
MultiParamTypeClasses
NoMonomorphismRestriction
FunctionalDependencies
Rank2Types
RankNTypes
PolymorphicComponents
ExistentialQuantification
ScopedTypeVariables
PatternSignatures	Deprecated, use ScopedTypeVariables instead.
ImplicitParams
FlexibleContexts
FlexibleInstances
EmptyDataDecls
CPP
KindSignatures
BangPatterns
TypeSynonymInstances
TemplateHaskell
ForeignFunctionInterface
Arrows
Generics
NoImplicitPrelude
NamedFieldPuns
PatternGuards
GeneralizedNewtypeDeriving
ExtensibleRecords
RestrictedTypeSynonyms
HereDocuments
MagicHash
TypeFamilies
StandaloneDeriving
UnicodeSyntax
UnliftedFFITypes
LiberalTypeSynonyms
TypeOperators
RecordWildCards
RecordPuns
DisambiguateRecordFields
OverloadedStrings
GADTs
NoMonoPatBinds
RelaxedPolyRec
ExtendedDefaultRules
UnboxedTuples
DeriveDataTypeable
ConstrainedClassMethods
PackageImports	Allow imports to be qualified by the package name that the module is intended to be imported from, e.g. import "network" Network.Socket
ImpredicativeTypes
NewQualifiedOperators
PostfixOperators
QuasiQuotes
TransformListComp
ViewPatterns
XmlSyntax	Allow concrete XML syntax to be used in expressions and patterns, as per the Haskell Server Pages extension language: http://www.haskell.org/haskellwiki/HSP. The ideas behind it are discussed in the paper Haskell Server Pages through Dynamic Loading by Niklas Broberg, from Haskell Workshop '05.
RegularPatterns	Allow regular pattern matching over lists, as discussed in the paper Regular Expression Patterns by Niklas Broberg, Andreas Farre and Josef Svenningsson, from ICFP '04.
UnknownExtension String

Instances

Eq Extension
Read Extension
Show Extension
Text Extension

knownExtensions :: [Extension]Source

deprecatedExtensions :: [(Extension, Maybe Extension)]Source

Extensions that have been deprecated, possibly paired with another extension that replaces it.