Safe Haskell	None
Language	Haskell2010

Distribution.Compat.Semigroup

Description

Compatibility layer for Data.Semigroup

Synopsis

class Semigroup a where
class Semigroup a => Monoid a where
newtype All = All {
- getAll :: Bool
}
newtype Any = Any {
- getAny :: Bool
}
newtype Last' a = Last' {
- getLast' :: Maybe a
}
gmappend :: (Generic a, GSemigroup (Rep a)) => a -> a -> a
gmempty :: (Generic a, GMonoid (Rep a)) => a

Documentation

class Semigroup a where #

The class of semigroups (types with an associative binary operation).

Instances should satisfy the associativity law:

```
x <> (y <> z) = (x <> y) <> z
```

Since: base-4.9.0.0

Minimal complete definition

(<>)

Methods

(<>) :: a -> a -> a infixr 6 #

An associative operation.

Instances

Semigroup Ordering	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: Ordering -> Ordering -> Ordering # sconcat :: NonEmpty Ordering -> Ordering # stimes :: Integral b => b -> Ordering -> Ordering #
Semigroup ()	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: () -> () -> () # sconcat :: NonEmpty () -> () # stimes :: Integral b => b -> () -> () #
Semigroup Void	Since: base-4.9.0.0
Instance details Defined in Data.Void Methods (<>) :: Void -> Void -> Void # sconcat :: NonEmpty Void -> Void # stimes :: Integral b => b -> Void -> Void #
Semigroup All	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: All -> All -> All # sconcat :: NonEmpty All -> All # stimes :: Integral b => b -> All -> All #
Semigroup Any	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: Any -> Any -> Any # sconcat :: NonEmpty Any -> Any # stimes :: Integral b => b -> Any -> Any #
Semigroup ShortByteString
Instance details Defined in Data.ByteString.Short.Internal Methods (<>) :: ShortByteString -> ShortByteString -> ShortByteString # sconcat :: NonEmpty ShortByteString -> ShortByteString # stimes :: Integral b => b -> ShortByteString -> ShortByteString #
Semigroup ByteString
Instance details Defined in Data.ByteString.Lazy.Internal Methods (<>) :: ByteString -> ByteString -> ByteString # sconcat :: NonEmpty ByteString -> ByteString # stimes :: Integral b => b -> ByteString -> ByteString #
Semigroup ByteString
Instance details Defined in Data.ByteString.Internal Methods (<>) :: ByteString -> ByteString -> ByteString # sconcat :: NonEmpty ByteString -> ByteString # stimes :: Integral b => b -> ByteString -> ByteString #
Semigroup Builder
Instance details Defined in Data.ByteString.Builder.Internal Methods (<>) :: Builder -> Builder -> Builder # sconcat :: NonEmpty Builder -> Builder # stimes :: Integral b => b -> Builder -> Builder #
Semigroup IntSet	Since: containers-0.5.7
Instance details Defined in Data.IntSet.Internal Methods (<>) :: IntSet -> IntSet -> IntSet # sconcat :: NonEmpty IntSet -> IntSet # stimes :: Integral b => b -> IntSet -> IntSet #
Semigroup Doc
Instance details Defined in Text.PrettyPrint.HughesPJ Methods (<>) :: Doc -> Doc -> Doc # sconcat :: NonEmpty Doc -> Doc # stimes :: Integral b => b -> Doc -> Doc #
Semigroup CDialect #
Instance details Defined in Distribution.Simple.CCompiler Methods (<>) :: CDialect -> CDialect -> CDialect # sconcat :: NonEmpty CDialect -> CDialect # stimes :: Integral b => b -> CDialect -> CDialect #
Semigroup ShortText #
Instance details Defined in Distribution.Utils.ShortText Methods (<>) :: ShortText -> ShortText -> ShortText # sconcat :: NonEmpty ShortText -> ShortText # stimes :: Integral b => b -> ShortText -> ShortText #
Semigroup ForeignLibType #
Instance details Defined in Distribution.Types.ForeignLibType Methods (<>) :: ForeignLibType -> ForeignLibType -> ForeignLibType # sconcat :: NonEmpty ForeignLibType -> ForeignLibType # stimes :: Integral b => b -> ForeignLibType -> ForeignLibType #
Semigroup ExecutableScope #	`Any` like semigroup, where `ExecutablePrivate` is 'Any True'
Instance details Defined in Distribution.Types.ExecutableScope Methods (<>) :: ExecutableScope -> ExecutableScope -> ExecutableScope # sconcat :: NonEmpty ExecutableScope -> ExecutableScope # stimes :: Integral b => b -> ExecutableScope -> ExecutableScope #
Semigroup TestSuiteInterface #
Instance details Defined in Distribution.Types.TestSuiteInterface Methods (<>) :: TestSuiteInterface -> TestSuiteInterface -> TestSuiteInterface # sconcat :: NonEmpty TestSuiteInterface -> TestSuiteInterface # stimes :: Integral b => b -> TestSuiteInterface -> TestSuiteInterface #
Semigroup BenchmarkInterface #
Instance details Defined in Distribution.Types.BenchmarkInterface Methods (<>) :: BenchmarkInterface -> BenchmarkInterface -> BenchmarkInterface # sconcat :: NonEmpty BenchmarkInterface -> BenchmarkInterface # stimes :: Integral b => b -> BenchmarkInterface -> BenchmarkInterface #
Semigroup UnqualComponentName #
Instance details Defined in Distribution.Types.UnqualComponentName Methods (<>) :: UnqualComponentName -> UnqualComponentName -> UnqualComponentName # sconcat :: NonEmpty UnqualComponentName -> UnqualComponentName # stimes :: Integral b => b -> UnqualComponentName -> UnqualComponentName #
Semigroup SetupBuildInfo #
Instance details Defined in Distribution.Types.SetupBuildInfo Methods (<>) :: SetupBuildInfo -> SetupBuildInfo -> SetupBuildInfo # sconcat :: NonEmpty SetupBuildInfo -> SetupBuildInfo # stimes :: Integral b => b -> SetupBuildInfo -> SetupBuildInfo #
Semigroup DependencyMap #
Instance details Defined in Distribution.Types.DependencyMap Methods (<>) :: DependencyMap -> DependencyMap -> DependencyMap # sconcat :: NonEmpty DependencyMap -> DependencyMap # stimes :: Integral b => b -> DependencyMap -> DependencyMap #
Semigroup BuildInfo #
Instance details Defined in Distribution.Types.BuildInfo Methods (<>) :: BuildInfo -> BuildInfo -> BuildInfo # sconcat :: NonEmpty BuildInfo -> BuildInfo # stimes :: Integral b => b -> BuildInfo -> BuildInfo #
Semigroup TestSuite #
Instance details Defined in Distribution.Types.TestSuite Methods (<>) :: TestSuite -> TestSuite -> TestSuite # sconcat :: NonEmpty TestSuite -> TestSuite # stimes :: Integral b => b -> TestSuite -> TestSuite #
Semigroup Library #
Instance details Defined in Distribution.Types.Library Methods (<>) :: Library -> Library -> Library # sconcat :: NonEmpty Library -> Library # stimes :: Integral b => b -> Library -> Library #
Semigroup ForeignLib #
Instance details Defined in Distribution.Types.ForeignLib Methods (<>) :: ForeignLib -> ForeignLib -> ForeignLib # sconcat :: NonEmpty ForeignLib -> ForeignLib # stimes :: Integral b => b -> ForeignLib -> ForeignLib #
Semigroup Executable #
Instance details Defined in Distribution.Types.Executable Methods (<>) :: Executable -> Executable -> Executable # sconcat :: NonEmpty Executable -> Executable # stimes :: Integral b => b -> Executable -> Executable #
Semigroup Benchmark #
Instance details Defined in Distribution.Types.Benchmark Methods (<>) :: Benchmark -> Benchmark -> Benchmark # sconcat :: NonEmpty Benchmark -> Benchmark # stimes :: Integral b => b -> Benchmark -> Benchmark #
Semigroup Component #
Instance details Defined in Distribution.Types.Component Methods (<>) :: Component -> Component -> Component # sconcat :: NonEmpty Component -> Component # stimes :: Integral b => b -> Component -> Component #
Semigroup FlagAssignment #
Instance details Defined in Distribution.Types.GenericPackageDescription Methods (<>) :: FlagAssignment -> FlagAssignment -> FlagAssignment # sconcat :: NonEmpty FlagAssignment -> FlagAssignment # stimes :: Integral b => b -> FlagAssignment -> FlagAssignment #
Semigroup BenchmarkFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: BenchmarkFlags -> BenchmarkFlags -> BenchmarkFlags # sconcat :: NonEmpty BenchmarkFlags -> BenchmarkFlags # stimes :: Integral b => b -> BenchmarkFlags -> BenchmarkFlags #
Semigroup TestFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: TestFlags -> TestFlags -> TestFlags # sconcat :: NonEmpty TestFlags -> TestFlags # stimes :: Integral b => b -> TestFlags -> TestFlags #
Semigroup TestShowDetails #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: TestShowDetails -> TestShowDetails -> TestShowDetails # sconcat :: NonEmpty TestShowDetails -> TestShowDetails # stimes :: Integral b => b -> TestShowDetails -> TestShowDetails #
Semigroup ReplFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: ReplFlags -> ReplFlags -> ReplFlags # sconcat :: NonEmpty ReplFlags -> ReplFlags # stimes :: Integral b => b -> ReplFlags -> ReplFlags #
Semigroup BuildFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: BuildFlags -> BuildFlags -> BuildFlags # sconcat :: NonEmpty BuildFlags -> BuildFlags # stimes :: Integral b => b -> BuildFlags -> BuildFlags #
Semigroup CleanFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: CleanFlags -> CleanFlags -> CleanFlags # sconcat :: NonEmpty CleanFlags -> CleanFlags # stimes :: Integral b => b -> CleanFlags -> CleanFlags #
Semigroup HaddockFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: HaddockFlags -> HaddockFlags -> HaddockFlags # sconcat :: NonEmpty HaddockFlags -> HaddockFlags # stimes :: Integral b => b -> HaddockFlags -> HaddockFlags #
Semigroup DoctestFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: DoctestFlags -> DoctestFlags -> DoctestFlags # sconcat :: NonEmpty DoctestFlags -> DoctestFlags # stimes :: Integral b => b -> DoctestFlags -> DoctestFlags #
Semigroup HscolourFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: HscolourFlags -> HscolourFlags -> HscolourFlags # sconcat :: NonEmpty HscolourFlags -> HscolourFlags # stimes :: Integral b => b -> HscolourFlags -> HscolourFlags #
Semigroup RegisterFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: RegisterFlags -> RegisterFlags -> RegisterFlags # sconcat :: NonEmpty RegisterFlags -> RegisterFlags # stimes :: Integral b => b -> RegisterFlags -> RegisterFlags #
Semigroup SDistFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: SDistFlags -> SDistFlags -> SDistFlags # sconcat :: NonEmpty SDistFlags -> SDistFlags # stimes :: Integral b => b -> SDistFlags -> SDistFlags #
Semigroup InstallFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: InstallFlags -> InstallFlags -> InstallFlags # sconcat :: NonEmpty InstallFlags -> InstallFlags # stimes :: Integral b => b -> InstallFlags -> InstallFlags #
Semigroup CopyFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: CopyFlags -> CopyFlags -> CopyFlags # sconcat :: NonEmpty CopyFlags -> CopyFlags # stimes :: Integral b => b -> CopyFlags -> CopyFlags #
Semigroup ConfigFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: ConfigFlags -> ConfigFlags -> ConfigFlags # sconcat :: NonEmpty ConfigFlags -> ConfigFlags # stimes :: Integral b => b -> ConfigFlags -> ConfigFlags #
Semigroup GlobalFlags #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: GlobalFlags -> GlobalFlags -> GlobalFlags # sconcat :: NonEmpty GlobalFlags -> GlobalFlags # stimes :: Integral b => b -> GlobalFlags -> GlobalFlags #
Semigroup GhcOptions #
Instance details Defined in Distribution.Simple.Program.GHC Methods (<>) :: GhcOptions -> GhcOptions -> GhcOptions # sconcat :: NonEmpty GhcOptions -> GhcOptions # stimes :: Integral b => b -> GhcOptions -> GhcOptions #
Semigroup [a]	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: [a] -> [a] -> [a] # sconcat :: NonEmpty [a] -> [a] # stimes :: Integral b => b -> [a] -> [a] #
Semigroup a => Semigroup (Maybe a)	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: Maybe a -> Maybe a -> Maybe a # sconcat :: NonEmpty (Maybe a) -> Maybe a # stimes :: Integral b => b -> Maybe a -> Maybe a #
Semigroup a => Semigroup (IO a)	Since: base-4.10.0.0
Instance details Defined in GHC.Base Methods (<>) :: IO a -> IO a -> IO a # sconcat :: NonEmpty (IO a) -> IO a # stimes :: Integral b => b -> IO a -> IO a #
Ord a => Semigroup (Min a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods (<>) :: Min a -> Min a -> Min a # sconcat :: NonEmpty (Min a) -> Min a # stimes :: Integral b => b -> Min a -> Min a #
Ord a => Semigroup (Max a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods (<>) :: Max a -> Max a -> Max a # sconcat :: NonEmpty (Max a) -> Max a # stimes :: Integral b => b -> Max a -> Max a #
Semigroup (First a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods (<>) :: First a -> First a -> First a # sconcat :: NonEmpty (First a) -> First a # stimes :: Integral b => b -> First a -> First a #
Semigroup (Last a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods (<>) :: Last a -> Last a -> Last a # sconcat :: NonEmpty (Last a) -> Last a # stimes :: Integral b => b -> Last a -> Last a #
Monoid m => Semigroup (WrappedMonoid m)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods (<>) :: WrappedMonoid m -> WrappedMonoid m -> WrappedMonoid m # sconcat :: NonEmpty (WrappedMonoid m) -> WrappedMonoid m # stimes :: Integral b => b -> WrappedMonoid m -> WrappedMonoid m #
Semigroup a => Semigroup (Option a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods (<>) :: Option a -> Option a -> Option a # sconcat :: NonEmpty (Option a) -> Option a # stimes :: Integral b => b -> Option a -> Option a #
Semigroup a => Semigroup (Identity a)
Instance details Defined in Data.Functor.Identity Methods (<>) :: Identity a -> Identity a -> Identity a # sconcat :: NonEmpty (Identity a) -> Identity a # stimes :: Integral b => b -> Identity a -> Identity a #
Semigroup (First a)	Since: base-4.9.0.0
Instance details Defined in Data.Monoid Methods (<>) :: First a -> First a -> First a # sconcat :: NonEmpty (First a) -> First a # stimes :: Integral b => b -> First a -> First a #
Semigroup (Last a)	Since: base-4.9.0.0
Instance details Defined in Data.Monoid Methods (<>) :: Last a -> Last a -> Last a # sconcat :: NonEmpty (Last a) -> Last a # stimes :: Integral b => b -> Last a -> Last a #
Semigroup a => Semigroup (Dual a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: Dual a -> Dual a -> Dual a # sconcat :: NonEmpty (Dual a) -> Dual a # stimes :: Integral b => b -> Dual a -> Dual a #
Semigroup (Endo a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: Endo a -> Endo a -> Endo a # sconcat :: NonEmpty (Endo a) -> Endo a # stimes :: Integral b => b -> Endo a -> Endo a #
Num a => Semigroup (Sum a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: Sum a -> Sum a -> Sum a # sconcat :: NonEmpty (Sum a) -> Sum a # stimes :: Integral b => b -> Sum a -> Sum a #
Num a => Semigroup (Product a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: Product a -> Product a -> Product a # sconcat :: NonEmpty (Product a) -> Product a # stimes :: Integral b => b -> Product a -> Product a #
Semigroup a => Semigroup (Down a)	Since: base-4.11.0.0
Instance details Defined in Data.Ord Methods (<>) :: Down a -> Down a -> Down a # sconcat :: NonEmpty (Down a) -> Down a # stimes :: Integral b => b -> Down a -> Down a #
Semigroup (NonEmpty a)	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: NonEmpty a -> NonEmpty a -> NonEmpty a # sconcat :: NonEmpty (NonEmpty a) -> NonEmpty a # stimes :: Integral b => b -> NonEmpty a -> NonEmpty a #
Semigroup (PutM ())
Instance details Defined in Data.Binary.Put Methods (<>) :: PutM () -> PutM () -> PutM () # sconcat :: NonEmpty (PutM ()) -> PutM () # stimes :: Integral b => b -> PutM () -> PutM () #
Semigroup (IntMap a)	Since: containers-0.5.7
Instance details Defined in Data.IntMap.Internal Methods (<>) :: IntMap a -> IntMap a -> IntMap a # sconcat :: NonEmpty (IntMap a) -> IntMap a # stimes :: Integral b => b -> IntMap a -> IntMap a #
Semigroup (Seq a)	Since: containers-0.5.7
Instance details Defined in Data.Sequence.Internal Methods (<>) :: Seq a -> Seq a -> Seq a # sconcat :: NonEmpty (Seq a) -> Seq a # stimes :: Integral b => b -> Seq a -> Seq a #
Ord a => Semigroup (Set a)	Since: containers-0.5.7
Instance details Defined in Data.Set.Internal Methods (<>) :: Set a -> Set a -> Set a # sconcat :: NonEmpty (Set a) -> Set a # stimes :: Integral b => b -> Set a -> Set a #
Semigroup (Doc a)
Instance details Defined in Text.PrettyPrint.Annotated.HughesPJ Methods (<>) :: Doc a -> Doc a -> Doc a # sconcat :: NonEmpty (Doc a) -> Doc a # stimes :: Integral b => b -> Doc a -> Doc a #
Semigroup (MergeSet a)
Instance details Defined in Data.Set.Internal Methods (<>) :: MergeSet a -> MergeSet a -> MergeSet a # sconcat :: NonEmpty (MergeSet a) -> MergeSet a # stimes :: Integral b => b -> MergeSet a -> MergeSet a #
Semigroup (Last' a) #
Instance details Defined in Distribution.Compat.Semigroup Methods (<>) :: Last' a -> Last' a -> Last' a # sconcat :: NonEmpty (Last' a) -> Last' a # stimes :: Integral b => b -> Last' a -> Last' a #
Semigroup (DList a) #
Instance details Defined in Distribution.Compat.DList Methods (<>) :: DList a -> DList a -> DList a # sconcat :: NonEmpty (DList a) -> DList a # stimes :: Integral b => b -> DList a -> DList a #
Semigroup (Condition a) #
Instance details Defined in Distribution.Types.Condition Methods (<>) :: Condition a -> Condition a -> Condition a # sconcat :: NonEmpty (Condition a) -> Condition a # stimes :: Integral b => b -> Condition a -> Condition a #
Semigroup dir => Semigroup (InstallDirs dir) #
Instance details Defined in Distribution.Simple.InstallDirs Methods (<>) :: InstallDirs dir -> InstallDirs dir -> InstallDirs dir # sconcat :: NonEmpty (InstallDirs dir) -> InstallDirs dir # stimes :: Integral b => b -> InstallDirs dir -> InstallDirs dir #
Ord a => Semigroup (NubListR a) #
Instance details Defined in Distribution.Utils.NubList Methods (<>) :: NubListR a -> NubListR a -> NubListR a # sconcat :: NonEmpty (NubListR a) -> NubListR a # stimes :: Integral b => b -> NubListR a -> NubListR a #
Ord a => Semigroup (NubList a) #
Instance details Defined in Distribution.Utils.NubList Methods (<>) :: NubList a -> NubList a -> NubList a # sconcat :: NonEmpty (NubList a) -> NubList a # stimes :: Integral b => b -> NubList a -> NubList a #
Semigroup (Flag a) #
Instance details Defined in Distribution.Simple.Setup Methods (<>) :: Flag a -> Flag a -> Flag a # sconcat :: NonEmpty (Flag a) -> Flag a # stimes :: Integral b => b -> Flag a -> Flag a #
Semigroup (PackageIndex InstalledPackageInfo) #
Instance details Defined in Distribution.Simple.PackageIndex Methods (<>) :: PackageIndex InstalledPackageInfo -> PackageIndex InstalledPackageInfo -> PackageIndex InstalledPackageInfo # sconcat :: NonEmpty (PackageIndex InstalledPackageInfo) -> PackageIndex InstalledPackageInfo # stimes :: Integral b => b -> PackageIndex InstalledPackageInfo -> PackageIndex InstalledPackageInfo #
Semigroup b => Semigroup (a -> b)	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: (a -> b) -> (a -> b) -> a -> b # sconcat :: NonEmpty (a -> b) -> a -> b # stimes :: Integral b0 => b0 -> (a -> b) -> a -> b #
Semigroup (Either a b)	Since: base-4.9.0.0
Instance details Defined in Data.Either Methods (<>) :: Either a b -> Either a b -> Either a b # sconcat :: NonEmpty (Either a b) -> Either a b # stimes :: Integral b0 => b0 -> Either a b -> Either a b #
(Semigroup a, Semigroup b) => Semigroup (a, b)	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: (a, b) -> (a, b) -> (a, b) # sconcat :: NonEmpty (a, b) -> (a, b) # stimes :: Integral b0 => b0 -> (a, b) -> (a, b) #
Semigroup a => Semigroup (ST s a)	Since: base-4.11.0.0
Instance details Defined in GHC.ST Methods (<>) :: ST s a -> ST s a -> ST s a # sconcat :: NonEmpty (ST s a) -> ST s a # stimes :: Integral b => b -> ST s a -> ST s a #
Semigroup (Proxy s)	Since: base-4.9.0.0
Instance details Defined in Data.Proxy Methods (<>) :: Proxy s -> Proxy s -> Proxy s # sconcat :: NonEmpty (Proxy s) -> Proxy s # stimes :: Integral b => b -> Proxy s -> Proxy s #
Ord k => Semigroup (Map k v)
Instance details Defined in Data.Map.Internal Methods (<>) :: Map k v -> Map k v -> Map k v # sconcat :: NonEmpty (Map k v) -> Map k v # stimes :: Integral b => b -> Map k v -> Map k v #
(Semigroup a, Semigroup b, Semigroup c) => Semigroup (a, b, c)	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: (a, b, c) -> (a, b, c) -> (a, b, c) # sconcat :: NonEmpty (a, b, c) -> (a, b, c) # stimes :: Integral b0 => b0 -> (a, b, c) -> (a, b, c) #
Semigroup a => Semigroup (Const a b)
Instance details Defined in Data.Functor.Const Methods (<>) :: Const a b -> Const a b -> Const a b # sconcat :: NonEmpty (Const a b) -> Const a b # stimes :: Integral b0 => b0 -> Const a b -> Const a b #
Alternative f => Semigroup (Alt f a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: Alt f a -> Alt f a -> Alt f a # sconcat :: NonEmpty (Alt f a) -> Alt f a # stimes :: Integral b => b -> Alt f a -> Alt f a #
(Semigroup a, Semigroup b, Semigroup c, Semigroup d) => Semigroup (a, b, c, d)	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: (a, b, c, d) -> (a, b, c, d) -> (a, b, c, d) # sconcat :: NonEmpty (a, b, c, d) -> (a, b, c, d) # stimes :: Integral b0 => b0 -> (a, b, c, d) -> (a, b, c, d) #
Semigroup a => Semigroup (ParsecT s u m a)	The `Semigroup` instance for `ParsecT` is used to append the result of several parsers, for example: (many $ char `a`) <> (many $ char `b`) The above will parse a string like `"aabbb"` and return a successful parse result `"aabbb"`. Compare against the below which will produce a result of `"bbb"` for the same input: (many $ char `a`) >> (many $ char `b`) (many $ char `a`) > (many $ char `b`) Since: parsec-3.1.12*
Instance details Defined in Text.Parsec.Prim Methods (<>) :: ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a # sconcat :: NonEmpty (ParsecT s u m a) -> ParsecT s u m a # stimes :: Integral b => b -> ParsecT s u m a -> ParsecT s u m a #
(Semigroup a, Semigroup b, Semigroup c, Semigroup d, Semigroup e) => Semigroup (a, b, c, d, e)	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods (<>) :: (a, b, c, d, e) -> (a, b, c, d, e) -> (a, b, c, d, e) # sconcat :: NonEmpty (a, b, c, d, e) -> (a, b, c, d, e) # stimes :: Integral b0 => b0 -> (a, b, c, d, e) -> (a, b, c, d, e) #

class Semigroup a => Monoid a where #

The class of monoids (types with an associative binary operation that has an identity). Instances should satisfy the following laws:

```
x <> mempty = x
```
```
mempty <> x = x
```
x <> (y <> z) = (x <> y) <> z (Semigroup law)
```
mconcat = foldr '(<>)' mempty
```

The method names refer to the monoid of lists under concatenation, but there are many other instances.

Some types can be viewed as a monoid in more than one way, e.g. both addition and multiplication on numbers. In such cases we often define newtypes and make those instances of Monoid, e.g. Sum and Product.

NOTE: Semigroup is a superclass of Monoid since base-4.11.0.0.

Minimal complete definition

mempty

Methods

mempty :: a #

Identity of mappend

mappend :: a -> a -> a #

An associative operation

NOTE: This method is redundant and has the default implementation mappend = '(<>)' since base-4.11.0.0.

mconcat :: [a] -> a #

Fold a list using the monoid.

For most types, the default definition for mconcat will be used, but the function is included in the class definition so that an optimized version can be provided for specific types.

Instances

Monoid Ordering	Since: base-2.1
Instance details Defined in GHC.Base Methods mempty :: Ordering # mappend :: Ordering -> Ordering -> Ordering # mconcat :: [Ordering] -> Ordering #
Monoid ()	Since: base-2.1
Instance details Defined in GHC.Base Methods mempty :: () # mappend :: () -> () -> () # mconcat :: [()] -> () #
Monoid All	Since: base-2.1
Instance details Defined in Data.Semigroup.Internal Methods mempty :: All # mappend :: All -> All -> All # mconcat :: [All] -> All #
Monoid Any	Since: base-2.1
Instance details Defined in Data.Semigroup.Internal Methods mempty :: Any # mappend :: Any -> Any -> Any # mconcat :: [Any] -> Any #
Monoid ShortByteString
Instance details Defined in Data.ByteString.Short.Internal Methods mempty :: ShortByteString # mappend :: ShortByteString -> ShortByteString -> ShortByteString # mconcat :: [ShortByteString] -> ShortByteString #
Monoid ByteString
Instance details Defined in Data.ByteString.Lazy.Internal Methods mempty :: ByteString # mappend :: ByteString -> ByteString -> ByteString # mconcat :: [ByteString] -> ByteString #
Monoid ByteString
Instance details Defined in Data.ByteString.Internal Methods mempty :: ByteString # mappend :: ByteString -> ByteString -> ByteString # mconcat :: [ByteString] -> ByteString #
Monoid Builder
Instance details Defined in Data.ByteString.Builder.Internal Methods mempty :: Builder # mappend :: Builder -> Builder -> Builder # mconcat :: [Builder] -> Builder #
Monoid IntSet
Instance details Defined in Data.IntSet.Internal Methods mempty :: IntSet # mappend :: IntSet -> IntSet -> IntSet # mconcat :: [IntSet] -> IntSet #
Monoid Doc
Instance details Defined in Text.PrettyPrint.HughesPJ Methods mempty :: Doc # mappend :: Doc -> Doc -> Doc # mconcat :: [Doc] -> Doc #
Monoid CDialect #
Instance details Defined in Distribution.Simple.CCompiler Methods mempty :: CDialect # mappend :: CDialect -> CDialect -> CDialect # mconcat :: [CDialect] -> CDialect #
Monoid ShortText #
Instance details Defined in Distribution.Utils.ShortText Methods mempty :: ShortText # mappend :: ShortText -> ShortText -> ShortText # mconcat :: [ShortText] -> ShortText #
Monoid ForeignLibType #
Instance details Defined in Distribution.Types.ForeignLibType Methods mempty :: ForeignLibType # mappend :: ForeignLibType -> ForeignLibType -> ForeignLibType # mconcat :: [ForeignLibType] -> ForeignLibType #
Monoid ExecutableScope #	`mempty` = `ExecutablePublic`
Instance details Defined in Distribution.Types.ExecutableScope Methods mempty :: ExecutableScope # mappend :: ExecutableScope -> ExecutableScope -> ExecutableScope # mconcat :: [ExecutableScope] -> ExecutableScope #
Monoid TestSuiteInterface #
Instance details Defined in Distribution.Types.TestSuiteInterface Methods mempty :: TestSuiteInterface # mappend :: TestSuiteInterface -> TestSuiteInterface -> TestSuiteInterface # mconcat :: [TestSuiteInterface] -> TestSuiteInterface #
Monoid BenchmarkInterface #
Instance details Defined in Distribution.Types.BenchmarkInterface Methods mempty :: BenchmarkInterface # mappend :: BenchmarkInterface -> BenchmarkInterface -> BenchmarkInterface # mconcat :: [BenchmarkInterface] -> BenchmarkInterface #
Monoid UnqualComponentName #
Instance details Defined in Distribution.Types.UnqualComponentName Methods mempty :: UnqualComponentName # mappend :: UnqualComponentName -> UnqualComponentName -> UnqualComponentName # mconcat :: [UnqualComponentName] -> UnqualComponentName #
Monoid SetupBuildInfo #
Instance details Defined in Distribution.Types.SetupBuildInfo Methods mempty :: SetupBuildInfo # mappend :: SetupBuildInfo -> SetupBuildInfo -> SetupBuildInfo # mconcat :: [SetupBuildInfo] -> SetupBuildInfo #
Monoid DependencyMap #
Instance details Defined in Distribution.Types.DependencyMap Methods mempty :: DependencyMap # mappend :: DependencyMap -> DependencyMap -> DependencyMap # mconcat :: [DependencyMap] -> DependencyMap #
Monoid BuildInfo #
Instance details Defined in Distribution.Types.BuildInfo Methods mempty :: BuildInfo # mappend :: BuildInfo -> BuildInfo -> BuildInfo # mconcat :: [BuildInfo] -> BuildInfo #
Monoid TestSuite #
Instance details Defined in Distribution.Types.TestSuite Methods mempty :: TestSuite # mappend :: TestSuite -> TestSuite -> TestSuite # mconcat :: [TestSuite] -> TestSuite #
Monoid Library #
Instance details Defined in Distribution.Types.Library Methods mempty :: Library # mappend :: Library -> Library -> Library # mconcat :: [Library] -> Library #
Monoid ForeignLib #
Instance details Defined in Distribution.Types.ForeignLib Methods mempty :: ForeignLib # mappend :: ForeignLib -> ForeignLib -> ForeignLib # mconcat :: [ForeignLib] -> ForeignLib #
Monoid Executable #
Instance details Defined in Distribution.Types.Executable Methods mempty :: Executable # mappend :: Executable -> Executable -> Executable # mconcat :: [Executable] -> Executable #
Monoid Benchmark #
Instance details Defined in Distribution.Types.Benchmark Methods mempty :: Benchmark # mappend :: Benchmark -> Benchmark -> Benchmark # mconcat :: [Benchmark] -> Benchmark #
Monoid FlagAssignment #
Instance details Defined in Distribution.Types.GenericPackageDescription Methods mempty :: FlagAssignment # mappend :: FlagAssignment -> FlagAssignment -> FlagAssignment # mconcat :: [FlagAssignment] -> FlagAssignment #
Monoid BenchmarkFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: BenchmarkFlags # mappend :: BenchmarkFlags -> BenchmarkFlags -> BenchmarkFlags # mconcat :: [BenchmarkFlags] -> BenchmarkFlags #
Monoid TestFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: TestFlags # mappend :: TestFlags -> TestFlags -> TestFlags # mconcat :: [TestFlags] -> TestFlags #
Monoid TestShowDetails #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: TestShowDetails # mappend :: TestShowDetails -> TestShowDetails -> TestShowDetails # mconcat :: [TestShowDetails] -> TestShowDetails #
Monoid ReplFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: ReplFlags # mappend :: ReplFlags -> ReplFlags -> ReplFlags # mconcat :: [ReplFlags] -> ReplFlags #
Monoid BuildFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: BuildFlags # mappend :: BuildFlags -> BuildFlags -> BuildFlags # mconcat :: [BuildFlags] -> BuildFlags #
Monoid CleanFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: CleanFlags # mappend :: CleanFlags -> CleanFlags -> CleanFlags # mconcat :: [CleanFlags] -> CleanFlags #
Monoid HaddockFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: HaddockFlags # mappend :: HaddockFlags -> HaddockFlags -> HaddockFlags # mconcat :: [HaddockFlags] -> HaddockFlags #
Monoid DoctestFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: DoctestFlags # mappend :: DoctestFlags -> DoctestFlags -> DoctestFlags # mconcat :: [DoctestFlags] -> DoctestFlags #
Monoid HscolourFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: HscolourFlags # mappend :: HscolourFlags -> HscolourFlags -> HscolourFlags # mconcat :: [HscolourFlags] -> HscolourFlags #
Monoid RegisterFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: RegisterFlags # mappend :: RegisterFlags -> RegisterFlags -> RegisterFlags # mconcat :: [RegisterFlags] -> RegisterFlags #
Monoid SDistFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: SDistFlags # mappend :: SDistFlags -> SDistFlags -> SDistFlags # mconcat :: [SDistFlags] -> SDistFlags #
Monoid InstallFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: InstallFlags # mappend :: InstallFlags -> InstallFlags -> InstallFlags # mconcat :: [InstallFlags] -> InstallFlags #
Monoid CopyFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: CopyFlags # mappend :: CopyFlags -> CopyFlags -> CopyFlags # mconcat :: [CopyFlags] -> CopyFlags #
Monoid ConfigFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: ConfigFlags # mappend :: ConfigFlags -> ConfigFlags -> ConfigFlags # mconcat :: [ConfigFlags] -> ConfigFlags #
Monoid GlobalFlags #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: GlobalFlags # mappend :: GlobalFlags -> GlobalFlags -> GlobalFlags # mconcat :: [GlobalFlags] -> GlobalFlags #
Monoid GhcOptions #
Instance details Defined in Distribution.Simple.Program.GHC Methods mempty :: GhcOptions # mappend :: GhcOptions -> GhcOptions -> GhcOptions # mconcat :: [GhcOptions] -> GhcOptions #
Monoid [a]	Since: base-2.1
Instance details Defined in GHC.Base Methods mempty :: [a] # mappend :: [a] -> [a] -> [a] # mconcat :: [[a]] -> [a] #
Semigroup a => Monoid (Maybe a)	Lift a semigroup into `Maybe` forming a `Monoid` according to http://en.wikipedia.org/wiki/Monoid: "Any semigroup `S` may be turned into a monoid simply by adjoining an element `e` not in `S` and defining `ee = e` and `es = s = se` for all `s ∈ S`." Since 4.11.0: constraint on inner `a` value generalised from `Monoid` to `Semigroup`. Since: base-2.1*
Instance details Defined in GHC.Base Methods mempty :: Maybe a # mappend :: Maybe a -> Maybe a -> Maybe a # mconcat :: [Maybe a] -> Maybe a #
Monoid a => Monoid (IO a)	Since: base-4.9.0.0
Instance details Defined in GHC.Base Methods mempty :: IO a # mappend :: IO a -> IO a -> IO a # mconcat :: [IO a] -> IO a #
(Ord a, Bounded a) => Monoid (Min a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods mempty :: Min a # mappend :: Min a -> Min a -> Min a # mconcat :: [Min a] -> Min a #
(Ord a, Bounded a) => Monoid (Max a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods mempty :: Max a # mappend :: Max a -> Max a -> Max a # mconcat :: [Max a] -> Max a #
Monoid m => Monoid (WrappedMonoid m)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods mempty :: WrappedMonoid m # mappend :: WrappedMonoid m -> WrappedMonoid m -> WrappedMonoid m # mconcat :: [WrappedMonoid m] -> WrappedMonoid m #
Semigroup a => Monoid (Option a)	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods mempty :: Option a # mappend :: Option a -> Option a -> Option a # mconcat :: [Option a] -> Option a #
Monoid a => Monoid (Identity a)
Instance details Defined in Data.Functor.Identity Methods mempty :: Identity a # mappend :: Identity a -> Identity a -> Identity a # mconcat :: [Identity a] -> Identity a #
Monoid (First a)	Since: base-2.1
Instance details Defined in Data.Monoid Methods mempty :: First a # mappend :: First a -> First a -> First a # mconcat :: [First a] -> First a #
Monoid (Last a)	Since: base-2.1
Instance details Defined in Data.Monoid Methods mempty :: Last a # mappend :: Last a -> Last a -> Last a # mconcat :: [Last a] -> Last a #
Monoid a => Monoid (Dual a)	Since: base-2.1
Instance details Defined in Data.Semigroup.Internal Methods mempty :: Dual a # mappend :: Dual a -> Dual a -> Dual a # mconcat :: [Dual a] -> Dual a #
Monoid (Endo a)	Since: base-2.1
Instance details Defined in Data.Semigroup.Internal Methods mempty :: Endo a # mappend :: Endo a -> Endo a -> Endo a # mconcat :: [Endo a] -> Endo a #
Num a => Monoid (Sum a)	Since: base-2.1
Instance details Defined in Data.Semigroup.Internal Methods mempty :: Sum a # mappend :: Sum a -> Sum a -> Sum a # mconcat :: [Sum a] -> Sum a #
Num a => Monoid (Product a)	Since: base-2.1
Instance details Defined in Data.Semigroup.Internal Methods mempty :: Product a # mappend :: Product a -> Product a -> Product a # mconcat :: [Product a] -> Product a #
Monoid a => Monoid (Down a)	Since: base-4.11.0.0
Instance details Defined in Data.Ord Methods mempty :: Down a # mappend :: Down a -> Down a -> Down a # mconcat :: [Down a] -> Down a #
Monoid (PutM ())
Instance details Defined in Data.Binary.Put Methods mempty :: PutM () # mappend :: PutM () -> PutM () -> PutM () # mconcat :: [PutM ()] -> PutM () #
Monoid (IntMap a)
Instance details Defined in Data.IntMap.Internal Methods mempty :: IntMap a # mappend :: IntMap a -> IntMap a -> IntMap a # mconcat :: [IntMap a] -> IntMap a #
Monoid (Seq a)
Instance details Defined in Data.Sequence.Internal Methods mempty :: Seq a # mappend :: Seq a -> Seq a -> Seq a # mconcat :: [Seq a] -> Seq a #
Ord a => Monoid (Set a)
Instance details Defined in Data.Set.Internal Methods mempty :: Set a # mappend :: Set a -> Set a -> Set a # mconcat :: [Set a] -> Set a #
Monoid (Doc a)
Instance details Defined in Text.PrettyPrint.Annotated.HughesPJ Methods mempty :: Doc a # mappend :: Doc a -> Doc a -> Doc a # mconcat :: [Doc a] -> Doc a #
Monoid (MergeSet a)
Instance details Defined in Data.Set.Internal Methods mempty :: MergeSet a # mappend :: MergeSet a -> MergeSet a -> MergeSet a # mconcat :: [MergeSet a] -> MergeSet a #
Monoid (Last' a) #
Instance details Defined in Distribution.Compat.Semigroup Methods mempty :: Last' a # mappend :: Last' a -> Last' a -> Last' a # mconcat :: [Last' a] -> Last' a #
Monoid (DList a) #
Instance details Defined in Distribution.Compat.DList Methods mempty :: DList a # mappend :: DList a -> DList a -> DList a # mconcat :: [DList a] -> DList a #
Monoid (Condition a) #
Instance details Defined in Distribution.Types.Condition Methods mempty :: Condition a # mappend :: Condition a -> Condition a -> Condition a # mconcat :: [Condition a] -> Condition a #
(Semigroup dir, Monoid dir) => Monoid (InstallDirs dir) #
Instance details Defined in Distribution.Simple.InstallDirs Methods mempty :: InstallDirs dir # mappend :: InstallDirs dir -> InstallDirs dir -> InstallDirs dir # mconcat :: [InstallDirs dir] -> InstallDirs dir #
Ord a => Monoid (NubListR a) #
Instance details Defined in Distribution.Utils.NubList Methods mempty :: NubListR a # mappend :: NubListR a -> NubListR a -> NubListR a # mconcat :: [NubListR a] -> NubListR a #
Ord a => Monoid (NubList a) #	Monoid operations on NubLists. For a valid Monoid instance we need to satistfy the required monoid laws; identity, associativity and closure. Identity : by inspection: mempty `mappend` NubList xs == NubList xs `mappend` mempty Associativity : by inspection: (NubList xs `mappend` NubList ys) `mappend` NubList zs == NubList xs `mappend` (NubList ys `mappend` NubList zs) Closure : appending two lists of type a and removing duplicates obviously does not change the type.
Instance details Defined in Distribution.Utils.NubList Methods mempty :: NubList a # mappend :: NubList a -> NubList a -> NubList a # mconcat :: [NubList a] -> NubList a #
Monoid (Flag a) #
Instance details Defined in Distribution.Simple.Setup Methods mempty :: Flag a # mappend :: Flag a -> Flag a -> Flag a # mconcat :: [Flag a] -> Flag a #
Monoid (PackageIndex InstalledPackageInfo) #
Instance details Defined in Distribution.Simple.PackageIndex Methods mempty :: PackageIndex InstalledPackageInfo # mappend :: PackageIndex InstalledPackageInfo -> PackageIndex InstalledPackageInfo -> PackageIndex InstalledPackageInfo # mconcat :: [PackageIndex InstalledPackageInfo] -> PackageIndex InstalledPackageInfo #
Monoid b => Monoid (a -> b)	Since: base-2.1
Instance details Defined in GHC.Base Methods mempty :: a -> b # mappend :: (a -> b) -> (a -> b) -> a -> b # mconcat :: [a -> b] -> a -> b #
(Monoid a, Monoid b) => Monoid (a, b)	Since: base-2.1
Instance details Defined in GHC.Base Methods mempty :: (a, b) # mappend :: (a, b) -> (a, b) -> (a, b) # mconcat :: [(a, b)] -> (a, b) #
Monoid a => Monoid (ST s a)	Since: base-4.11.0.0
Instance details Defined in GHC.ST Methods mempty :: ST s a # mappend :: ST s a -> ST s a -> ST s a # mconcat :: [ST s a] -> ST s a #
Monoid (Proxy s)	Since: base-4.7.0.0
Instance details Defined in Data.Proxy Methods mempty :: Proxy s # mappend :: Proxy s -> Proxy s -> Proxy s # mconcat :: [Proxy s] -> Proxy s #
Ord k => Monoid (Map k v)
Instance details Defined in Data.Map.Internal Methods mempty :: Map k v # mappend :: Map k v -> Map k v -> Map k v # mconcat :: [Map k v] -> Map k v #
(Monoid a, Monoid b, Monoid c) => Monoid (a, b, c)	Since: base-2.1
Instance details Defined in GHC.Base Methods mempty :: (a, b, c) # mappend :: (a, b, c) -> (a, b, c) -> (a, b, c) # mconcat :: [(a, b, c)] -> (a, b, c) #
Monoid a => Monoid (Const a b)
Instance details Defined in Data.Functor.Const Methods mempty :: Const a b # mappend :: Const a b -> Const a b -> Const a b # mconcat :: [Const a b] -> Const a b #
Alternative f => Monoid (Alt f a)	Since: base-4.8.0.0
Instance details Defined in Data.Semigroup.Internal Methods mempty :: Alt f a # mappend :: Alt f a -> Alt f a -> Alt f a # mconcat :: [Alt f a] -> Alt f a #
(Monoid a, Monoid b, Monoid c, Monoid d) => Monoid (a, b, c, d)	Since: base-2.1
Instance details Defined in GHC.Base Methods mempty :: (a, b, c, d) # mappend :: (a, b, c, d) -> (a, b, c, d) -> (a, b, c, d) # mconcat :: [(a, b, c, d)] -> (a, b, c, d) #
(Monoid a, Semigroup (ParsecT s u m a)) => Monoid (ParsecT s u m a)	The `Monoid` instance for `ParsecT` is used for the same purposes as the `Semigroup` instance. Since: parsec-3.1.12
Instance details Defined in Text.Parsec.Prim Methods mempty :: ParsecT s u m a # mappend :: ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a # mconcat :: [ParsecT s u m a] -> ParsecT s u m a #
(Monoid a, Monoid b, Monoid c, Monoid d, Monoid e) => Monoid (a, b, c, d, e)	Since: base-2.1
Instance details Defined in GHC.Base Methods mempty :: (a, b, c, d, e) # mappend :: (a, b, c, d, e) -> (a, b, c, d, e) -> (a, b, c, d, e) # mconcat :: [(a, b, c, d, e)] -> (a, b, c, d, e) #

newtype All #

Boolean monoid under conjunction (&&).

>>> getAll (All True <> mempty <> All False)
False

>>> getAll (mconcat (map (\x -> All (even x)) [2,4,6,7,8]))
False

Constructors

All
Fields getAll :: Bool

Instances

Bounded All
Instance details Defined in Data.Semigroup.Internal Methods minBound :: All # maxBound :: All #
Eq All
Instance details Defined in Data.Semigroup.Internal Methods (==) :: All -> All -> Bool # (/=) :: All -> All -> Bool #
Data All	Since: base-4.8.0.0
Instance details Defined in Data.Data Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> All -> c All # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c All # toConstr :: All -> Constr # dataTypeOf :: All -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c All) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c All) # gmapT :: (forall b. Data b => b -> b) -> All -> All # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> All -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> All -> r # gmapQ :: (forall d. Data d => d -> u) -> All -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> All -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> All -> m All # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> All -> m All # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> All -> m All #
Ord All
Instance details Defined in Data.Semigroup.Internal Methods compare :: All -> All -> Ordering # (<) :: All -> All -> Bool # (<=) :: All -> All -> Bool # (>) :: All -> All -> Bool # (>=) :: All -> All -> Bool # max :: All -> All -> All # min :: All -> All -> All #
Read All
Instance details Defined in Data.Semigroup.Internal Methods readsPrec :: Int -> ReadS All # readList :: ReadS [All] # readPrec :: ReadPrec All # readListPrec :: ReadPrec [All] #
Show All
Instance details Defined in Data.Semigroup.Internal Methods showsPrec :: Int -> All -> ShowS # show :: All -> String # showList :: [All] -> ShowS #
Generic All
Instance details Defined in Data.Semigroup.Internal Associated Types type Rep All :: * -> * # Methods from :: All -> Rep All x # to :: Rep All x -> All #
Semigroup All	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: All -> All -> All # sconcat :: NonEmpty All -> All # stimes :: Integral b => b -> All -> All #
Monoid All	Since: base-2.1
Instance details Defined in Data.Semigroup.Internal Methods mempty :: All # mappend :: All -> All -> All # mconcat :: [All] -> All #
Binary All	Since: 0.8.4.0
Instance details Defined in Data.Binary.Class Methods put :: All -> Put # get :: Get All # putList :: [All] -> Put #
NFData All	Since: deepseq-1.4.0.0
Instance details Defined in Control.DeepSeq Methods rnf :: All -> () #
type Rep All
Instance details Defined in Data.Semigroup.Internal type Rep All = D1 (MetaData "All" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "All" PrefixI True) (S1 (MetaSel (Just "getAll") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Bool)))

newtype Any #

Boolean monoid under disjunction (||).

>>> getAny (Any True <> mempty <> Any False)
True

>>> getAny (mconcat (map (\x -> Any (even x)) [2,4,6,7,8]))
True

Constructors

Any
Fields getAny :: Bool

Instances

Bounded Any
Instance details Defined in Data.Semigroup.Internal Methods minBound :: Any # maxBound :: Any #
Eq Any
Instance details Defined in Data.Semigroup.Internal Methods (==) :: Any -> Any -> Bool # (/=) :: Any -> Any -> Bool #
Data Any	Since: base-4.8.0.0
Instance details Defined in Data.Data Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Any -> c Any # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Any # toConstr :: Any -> Constr # dataTypeOf :: Any -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Any) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Any) # gmapT :: (forall b. Data b => b -> b) -> Any -> Any # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Any -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Any -> r # gmapQ :: (forall d. Data d => d -> u) -> Any -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Any -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Any -> m Any # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Any -> m Any # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Any -> m Any #
Ord Any
Instance details Defined in Data.Semigroup.Internal Methods compare :: Any -> Any -> Ordering # (<) :: Any -> Any -> Bool # (<=) :: Any -> Any -> Bool # (>) :: Any -> Any -> Bool # (>=) :: Any -> Any -> Bool # max :: Any -> Any -> Any # min :: Any -> Any -> Any #
Read Any
Instance details Defined in Data.Semigroup.Internal Methods readsPrec :: Int -> ReadS Any # readList :: ReadS [Any] # readPrec :: ReadPrec Any # readListPrec :: ReadPrec [Any] #
Show Any
Instance details Defined in Data.Semigroup.Internal Methods showsPrec :: Int -> Any -> ShowS # show :: Any -> String # showList :: [Any] -> ShowS #
Generic Any
Instance details Defined in Data.Semigroup.Internal Associated Types type Rep Any :: * -> * # Methods from :: Any -> Rep Any x # to :: Rep Any x -> Any #
Semigroup Any	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup.Internal Methods (<>) :: Any -> Any -> Any # sconcat :: NonEmpty Any -> Any # stimes :: Integral b => b -> Any -> Any #
Monoid Any	Since: base-2.1
Instance details Defined in Data.Semigroup.Internal Methods mempty :: Any # mappend :: Any -> Any -> Any # mconcat :: [Any] -> Any #
Binary Any	Since: 0.8.4.0
Instance details Defined in Data.Binary.Class Methods put :: Any -> Put # get :: Get Any # putList :: [Any] -> Put #
NFData Any	Since: deepseq-1.4.0.0
Instance details Defined in Control.DeepSeq Methods rnf :: Any -> () #
type Rep Any
Instance details Defined in Data.Semigroup.Internal type Rep Any = D1 (MetaData "Any" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Any" PrefixI True) (S1 (MetaSel (Just "getAny") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Bool)))

newtype Last' a Source #

Cabal's own Last copy to avoid requiring an orphan Binary instance.

Once the oldest binary version we support provides a Binary instance for Last we can remove this one here.

NB: Last is defined differently and not a Monoid

Constructors

Last'
Fields getLast' :: Maybe a

Instances

Functor Last' Source #
Instance details Defined in Distribution.Compat.Semigroup Methods fmap :: (a -> b) -> Last' a -> Last' b # (<$) :: a -> Last' b -> Last' a #
Applicative Last' Source #
Instance details Defined in Distribution.Compat.Semigroup Methods pure :: a -> Last' a # (<>) :: Last' (a -> b) -> Last' a -> Last' b # liftA2 :: (a -> b -> c) -> Last' a -> Last' b -> Last' c # (>) :: Last' a -> Last' b -> Last' b # (<*) :: Last' a -> Last' b -> Last' a #
Eq a => Eq (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup Methods (==) :: Last' a -> Last' a -> Bool # (/=) :: Last' a -> Last' a -> Bool #
Ord a => Ord (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup Methods compare :: Last' a -> Last' a -> Ordering # (<) :: Last' a -> Last' a -> Bool # (<=) :: Last' a -> Last' a -> Bool # (>) :: Last' a -> Last' a -> Bool # (>=) :: Last' a -> Last' a -> Bool # max :: Last' a -> Last' a -> Last' a # min :: Last' a -> Last' a -> Last' a #
Read a => Read (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup Methods readsPrec :: Int -> ReadS (Last' a) # readList :: ReadS [Last' a] # readPrec :: ReadPrec (Last' a) # readListPrec :: ReadPrec [Last' a] #
Show a => Show (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup Methods showsPrec :: Int -> Last' a -> ShowS # show :: Last' a -> String # showList :: [Last' a] -> ShowS #
Generic (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup Associated Types type Rep (Last' a) :: * -> * # Methods from :: Last' a -> Rep (Last' a) x # to :: Rep (Last' a) x -> Last' a #
Semigroup (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup Methods (<>) :: Last' a -> Last' a -> Last' a # sconcat :: NonEmpty (Last' a) -> Last' a # stimes :: Integral b => b -> Last' a -> Last' a #
Monoid (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup Methods mempty :: Last' a # mappend :: Last' a -> Last' a -> Last' a # mconcat :: [Last' a] -> Last' a #
Binary a => Binary (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup Methods put :: Last' a -> Put # get :: Get (Last' a) # putList :: [Last' a] -> Put #
type Rep (Last' a) Source #
Instance details Defined in Distribution.Compat.Semigroup type Rep (Last' a) = D1 (MetaData "Last'" "Distribution.Compat.Semigroup" "Cabal-2.2.0.1-inplace" True) (C1 (MetaCons "Last'" PrefixI True) (S1 (MetaSel (Just "getLast'") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe a))))

gmappend :: (Generic a, GSemigroup (Rep a)) => a -> a -> a Source #

Generically generate a Semigroup (<>) operation for any type implementing Generic. This operation will append two values by point-wise appending their component fields. It is only defined for product types.

gmappend a (gmappend b c) = gmappend (gmappend a b) c

gmempty :: (Generic a, GMonoid (Rep a)) => a Source #

Generically generate a Monoid mempty for any product-like type implementing Generic.

It is only defined for product types.

gmappend gmempty a = a = gmappend a gmempty