beam-core-0.7.2.2: Type-safe, feature-complete SQL query and manipulation interface for Haskell

Safe HaskellNone
LanguageHaskell2010

Database.Beam

Contents

Description

Top-level Beam module. This module re-exports all the symbols necessary for most common user operations.

The most interesting modules are Database.Beam.Schema and Database.Beam.Query.

This is mainly reference documentation. Most users will want to consult the manual.

The API has mostly stayed the same, but not all the examples given there compile.

Synopsis

Documentation

class (BeamBackend be, Monad m, MonadIO m, Sql92SanityCheck syntax) => MonadBeam syntax be handle m | m -> syntax be handle where Source #

A class that ties together a Sql syntax, backend, handle, and monad type.

Intuitively, this allows you to write code that performs database commands without having to know the underlying API. As long as you have an appropriate handle from a database library that Beam can use, you can use the MonadBeam methods to execute the query.

Provided here is a low-level interface. Most often, you'll only need the withDatabase and withDatabaseDebug function. The 'run*' functions are wrapped by the appropriate functions in Database.Beam.Query.

This interface is very high-level and isn't meant to expose the full power of the underlying database. Namely, it only supports simple data retrieval strategies. More complicated strategies (for example, Postgres's COPY) are supported in individual backends. See the documentation of those backends for more details.

Minimal complete definition

withDatabaseDebug, runReturningMany

Methods

withDatabaseDebug Source #

Arguments

:: (String -> IO ())

Database statement logging function

-> handle

The database connection handle against which to execute the action

-> m a

The database action

-> IO a 

Run a database action, and log debugging information about statements executed using the specified IO action.

withDatabase :: handle -> m a -> IO a Source #

class BeamBackend be => FromBackendRow be a where Source #

Instances
BeamBackend be => FromBackendRow be () Source # 
Instance details

Defined in Database.Beam.Backend.Types

FromBackendRow be x => FromBackendRow be (Maybe x) Source # 
Instance details

Defined in Database.Beam.Backend.Types

(BeamBackend be, Generic (tbl (Nullable Identity)), Generic (tbl (Nullable Exposed)), GFromBackendRow be (Rep (tbl (Nullable Exposed))) (Rep (tbl (Nullable Identity)))) => FromBackendRow be (tbl (Nullable Identity)) Source # 
Instance details

Defined in Database.Beam.Backend.Types

(BeamBackend be, Generic (tbl Identity), Generic (tbl Exposed), GFromBackendRow be (Rep (tbl Exposed)) (Rep (tbl Identity))) => FromBackendRow be (tbl Identity) Source # 
Instance details

Defined in Database.Beam.Backend.Types

FromBackendRow be x => FromBackendRow be (SqlSerial x) Source # 
Instance details

Defined in Database.Beam.Backend.SQL.Types

(BeamBackend be, FromBackendRow be a, FromBackendRow be b) => FromBackendRow be (a, b) Source # 
Instance details

Defined in Database.Beam.Backend.Types

Methods

fromBackendRow :: FromBackendRowM be (a, b) Source #

valuesNeeded :: Proxy be -> Proxy (a, b) -> Int Source #

(BeamBackend be, KnownNat n, FromBackendRow be a) => FromBackendRow be (Vector n a) Source # 
Instance details

Defined in Database.Beam.Backend.Types

(BeamBackend be, FromBackendRow be t) => FromBackendRow be (Tagged tag t) Source # 
Instance details

Defined in Database.Beam.Backend.Types

(BeamBackend be, FromBackendRow be a, FromBackendRow be b, FromBackendRow be c) => FromBackendRow be (a, b, c) Source # 
Instance details

Defined in Database.Beam.Backend.Types

Methods

fromBackendRow :: FromBackendRowM be (a, b, c) Source #

valuesNeeded :: Proxy be -> Proxy (a, b, c) -> Int Source #

(BeamBackend be, FromBackendRow be a, FromBackendRow be b, FromBackendRow be c, FromBackendRow be d) => FromBackendRow be (a, b, c, d) Source # 
Instance details

Defined in Database.Beam.Backend.Types

Methods

fromBackendRow :: FromBackendRowM be (a, b, c, d) Source #

valuesNeeded :: Proxy be -> Proxy (a, b, c, d) -> Int Source #

(BeamBackend be, FromBackendRow be a, FromBackendRow be b, FromBackendRow be c, FromBackendRow be d, FromBackendRow be e) => FromBackendRow be (a, b, c, d, e) Source # 
Instance details

Defined in Database.Beam.Backend.Types

Methods

fromBackendRow :: FromBackendRowM be (a, b, c, d, e) Source #

valuesNeeded :: Proxy be -> Proxy (a, b, c, d, e) -> Int Source #

(BeamBackend be, FromBackendRow be a, FromBackendRow be b, FromBackendRow be c, FromBackendRow be d, FromBackendRow be e, FromBackendRow be f) => FromBackendRow be (a, b, c, d, e, f) Source # 
Instance details

Defined in Database.Beam.Backend.Types

Methods

fromBackendRow :: FromBackendRowM be (a, b, c, d, e, f) Source #

valuesNeeded :: Proxy be -> Proxy (a, b, c, d, e, f) -> Int Source #

(BeamBackend be, FromBackendRow be a, FromBackendRow be b, FromBackendRow be c, FromBackendRow be d, FromBackendRow be e, FromBackendRow be f, FromBackendRow be g) => FromBackendRow be (a, b, c, d, e, f, g) Source # 
Instance details

Defined in Database.Beam.Backend.Types

Methods

fromBackendRow :: FromBackendRowM be (a, b, c, d, e, f, g) Source #

valuesNeeded :: Proxy be -> Proxy (a, b, c, d, e, f, g) -> Int Source #

(BeamBackend be, FromBackendRow be a, FromBackendRow be b, FromBackendRow be c, FromBackendRow be d, FromBackendRow be e, FromBackendRow be f, FromBackendRow be g, FromBackendRow be h) => FromBackendRow be (a, b, c, d, e, f, g, h) Source # 
Instance details

Defined in Database.Beam.Backend.Types

Methods

fromBackendRow :: FromBackendRowM be (a, b, c, d, e, f, g, h) Source #

valuesNeeded :: Proxy be -> Proxy (a, b, c, d, e, f, g, h) -> Int Source #

Re-exports

class Monad m => MonadIO (m :: * -> *) where #

Monads in which IO computations may be embedded. Any monad built by applying a sequence of monad transformers to the IO monad will be an instance of this class.

Instances should satisfy the following laws, which state that liftIO is a transformer of monads:

Minimal complete definition

liftIO

Methods

liftIO :: IO a -> m a #

Lift a computation from the IO monad.

Instances
MonadIO IO

Since: base-4.9.0.0

Instance details

Defined in Control.Monad.IO.Class

Methods

liftIO :: IO a -> IO a #

MonadIO Q 
Instance details

Defined in Language.Haskell.TH.Syntax

Methods

liftIO :: IO a -> Q a #

MonadIO m => MonadIO (IdentityT m) 
Instance details

Defined in Control.Monad.Trans.Identity

Methods

liftIO :: IO a -> IdentityT m a #

(Functor f, MonadIO m) => MonadIO (FreeT f m) 
Instance details

Defined in Control.Monad.Trans.Free

Methods

liftIO :: IO a -> FreeT f m a #

(Error e, MonadIO m) => MonadIO (ErrorT e m) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

liftIO :: IO a -> ErrorT e m a #

MonadIO m => MonadIO (StateT s m) 
Instance details

Defined in Control.Monad.Trans.State.Lazy

Methods

liftIO :: IO a -> StateT s m a #

(Monoid w, MonadIO m) => MonadIO (WriterT w m) 
Instance details

Defined in Control.Monad.Trans.Writer.Lazy

Methods

liftIO :: IO a -> WriterT w m a #

class Typeable (a :: k) #

The class Typeable allows a concrete representation of a type to be calculated.

Minimal complete definition

typeRep#

class Generic a #

Representable types of kind *. This class is derivable in GHC with the DeriveGeneric flag on.

A Generic instance must satisfy the following laws:

from . toid
to . fromid

Minimal complete definition

from, to

Instances
Generic Bool 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Bool :: * -> * #

Methods

from :: Bool -> Rep Bool x #

to :: Rep Bool x -> Bool #

Generic Ordering 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Ordering :: * -> * #

Methods

from :: Ordering -> Rep Ordering x #

to :: Rep Ordering x -> Ordering #

Generic Exp 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Exp :: * -> * #

Methods

from :: Exp -> Rep Exp x #

to :: Rep Exp x -> Exp #

Generic Match 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Match :: * -> * #

Methods

from :: Match -> Rep Match x #

to :: Rep Match x -> Match #

Generic Clause 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Clause :: * -> * #

Methods

from :: Clause -> Rep Clause x #

to :: Rep Clause x -> Clause #

Generic Pat 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Pat :: * -> * #

Methods

from :: Pat -> Rep Pat x #

to :: Rep Pat x -> Pat #

Generic Type 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Type :: * -> * #

Methods

from :: Type -> Rep Type x #

to :: Rep Type x -> Type #

Generic Dec 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Dec :: * -> * #

Methods

from :: Dec -> Rep Dec x #

to :: Rep Dec x -> Dec #

Generic Name 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Name :: * -> * #

Methods

from :: Name -> Rep Name x #

to :: Rep Name x -> Name #

Generic FunDep 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep FunDep :: * -> * #

Methods

from :: FunDep -> Rep FunDep x #

to :: Rep FunDep x -> FunDep #

Generic InjectivityAnn 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep InjectivityAnn :: * -> * #

Generic Overlap 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Overlap :: * -> * #

Methods

from :: Overlap -> Rep Overlap x #

to :: Rep Overlap x -> Overlap #

Generic DerivStrategy 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep DerivStrategy :: * -> * #

Generic () 
Instance details

Defined in GHC.Generics

Associated Types

type Rep () :: * -> * #

Methods

from :: () -> Rep () x #

to :: Rep () x -> () #

Generic Con 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Con :: * -> * #

Methods

from :: Con -> Rep Con x #

to :: Rep Con x -> Con #

Generic Value 
Instance details

Defined in Data.Aeson.Types.Internal

Associated Types

type Rep Value :: * -> * #

Methods

from :: Value -> Rep Value x #

to :: Rep Value x -> Value #

Generic Void 
Instance details

Defined in Data.Void

Associated Types

type Rep Void :: * -> * #

Methods

from :: Void -> Rep Void x #

to :: Rep Void x -> Void #

Generic Version 
Instance details

Defined in Data.Version

Associated Types

type Rep Version :: * -> * #

Methods

from :: Version -> Rep Version x #

to :: Rep Version x -> Version #

Generic ExitCode 
Instance details

Defined in GHC.IO.Exception

Associated Types

type Rep ExitCode :: * -> * #

Methods

from :: ExitCode -> Rep ExitCode x #

to :: Rep ExitCode x -> ExitCode #

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 #

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 #

Generic Fixity 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Fixity :: * -> * #

Methods

from :: Fixity -> Rep Fixity x #

to :: Rep Fixity x -> Fixity #

Generic Associativity 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Associativity :: * -> * #

Generic SourceUnpackedness 
Instance details

Defined in GHC.Generics

Associated Types

type Rep SourceUnpackedness :: * -> * #

Generic SourceStrictness 
Instance details

Defined in GHC.Generics

Associated Types

type Rep SourceStrictness :: * -> * #

Generic DecidedStrictness 
Instance details

Defined in GHC.Generics

Associated Types

type Rep DecidedStrictness :: * -> * #

Generic Extension 
Instance details

Defined in GHC.LanguageExtensions.Type

Associated Types

type Rep Extension :: * -> * #

Generic ForeignSrcLang 
Instance details

Defined in GHC.ForeignSrcLang.Type

Associated Types

type Rep ForeignSrcLang :: * -> * #

Generic URI 
Instance details

Defined in Network.URI

Associated Types

type Rep URI :: * -> * #

Methods

from :: URI -> Rep URI x #

to :: Rep URI x -> URI #

Generic Doc 
Instance details

Defined in Text.PrettyPrint.HughesPJ

Associated Types

type Rep Doc :: * -> * #

Methods

from :: Doc -> Rep Doc x #

to :: Rep Doc x -> Doc #

Generic TextDetails 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Associated Types

type Rep TextDetails :: * -> * #

Generic Style 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Associated Types

type Rep Style :: * -> * #

Methods

from :: Style -> Rep Style x #

to :: Rep Style x -> Style #

Generic Mode 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Associated Types

type Rep Mode :: * -> * #

Methods

from :: Mode -> Rep Mode x #

to :: Rep Mode x -> Mode #

Generic ModName 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep ModName :: * -> * #

Methods

from :: ModName -> Rep ModName x #

to :: Rep ModName x -> ModName #

Generic PkgName 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep PkgName :: * -> * #

Methods

from :: PkgName -> Rep PkgName x #

to :: Rep PkgName x -> PkgName #

Generic Module 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Module :: * -> * #

Methods

from :: Module -> Rep Module x #

to :: Rep Module x -> Module #

Generic OccName 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep OccName :: * -> * #

Methods

from :: OccName -> Rep OccName x #

to :: Rep OccName x -> OccName #

Generic NameFlavour 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep NameFlavour :: * -> * #

Generic NameSpace 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep NameSpace :: * -> * #

Generic Loc 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Loc :: * -> * #

Methods

from :: Loc -> Rep Loc x #

to :: Rep Loc x -> Loc #

Generic Info 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Info :: * -> * #

Methods

from :: Info -> Rep Info x #

to :: Rep Info x -> Info #

Generic ModuleInfo 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep ModuleInfo :: * -> * #

Generic Fixity 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Fixity :: * -> * #

Methods

from :: Fixity -> Rep Fixity x #

to :: Rep Fixity x -> Fixity #

Generic FixityDirection 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep FixityDirection :: * -> * #

Generic Lit 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Lit :: * -> * #

Methods

from :: Lit -> Rep Lit x #

to :: Rep Lit x -> Lit #

Generic Body 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Body :: * -> * #

Methods

from :: Body -> Rep Body x #

to :: Rep Body x -> Body #

Generic Guard 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Guard :: * -> * #

Methods

from :: Guard -> Rep Guard x #

to :: Rep Guard x -> Guard #

Generic Stmt 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Stmt :: * -> * #

Methods

from :: Stmt -> Rep Stmt x #

to :: Rep Stmt x -> Stmt #

Generic Range 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Range :: * -> * #

Methods

from :: Range -> Rep Range x #

to :: Rep Range x -> Range #

Generic DerivClause 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep DerivClause :: * -> * #

Generic TypeFamilyHead 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep TypeFamilyHead :: * -> * #

Generic TySynEqn 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep TySynEqn :: * -> * #

Methods

from :: TySynEqn -> Rep TySynEqn x #

to :: Rep TySynEqn x -> TySynEqn #

Generic Foreign 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Foreign :: * -> * #

Methods

from :: Foreign -> Rep Foreign x #

to :: Rep Foreign x -> Foreign #

Generic Callconv 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Callconv :: * -> * #

Methods

from :: Callconv -> Rep Callconv x #

to :: Rep Callconv x -> Callconv #

Generic Safety 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Safety :: * -> * #

Methods

from :: Safety -> Rep Safety x #

to :: Rep Safety x -> Safety #

Generic Pragma 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Pragma :: * -> * #

Methods

from :: Pragma -> Rep Pragma x #

to :: Rep Pragma x -> Pragma #

Generic Inline 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Inline :: * -> * #

Methods

from :: Inline -> Rep Inline x #

to :: Rep Inline x -> Inline #

Generic RuleMatch 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep RuleMatch :: * -> * #

Generic Phases 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Phases :: * -> * #

Methods

from :: Phases -> Rep Phases x #

to :: Rep Phases x -> Phases #

Generic RuleBndr 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep RuleBndr :: * -> * #

Methods

from :: RuleBndr -> Rep RuleBndr x #

to :: Rep RuleBndr x -> RuleBndr #

Generic AnnTarget 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep AnnTarget :: * -> * #

Generic SourceUnpackedness 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep SourceUnpackedness :: * -> * #

Generic SourceStrictness 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep SourceStrictness :: * -> * #

Generic DecidedStrictness 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep DecidedStrictness :: * -> * #

Generic Bang 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Bang :: * -> * #

Methods

from :: Bang -> Rep Bang x #

to :: Rep Bang x -> Bang #

Generic PatSynDir 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep PatSynDir :: * -> * #

Generic PatSynArgs 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep PatSynArgs :: * -> * #

Generic TyVarBndr 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep TyVarBndr :: * -> * #

Generic FamilyResultSig 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep FamilyResultSig :: * -> * #

Generic TyLit 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep TyLit :: * -> * #

Methods

from :: TyLit -> Rep TyLit x #

to :: Rep TyLit x -> TyLit #

Generic Role 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Role :: * -> * #

Methods

from :: Role -> Rep Role x #

to :: Rep Role x -> Role #

Generic AnnLookup 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep AnnLookup :: * -> * #

Generic [a] 
Instance details

Defined in GHC.Generics

Associated Types

type Rep [a] :: * -> * #

Methods

from :: [a] -> Rep [a] x #

to :: Rep [a] x -> [a] #

Generic (Maybe a) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Maybe a) :: * -> * #

Methods

from :: Maybe a -> Rep (Maybe a) x #

to :: Rep (Maybe a) x -> Maybe a #

Generic (Par1 p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Par1 p) :: * -> * #

Methods

from :: Par1 p -> Rep (Par1 p) x #

to :: Rep (Par1 p) x -> Par1 p #

Generic (Only a) 
Instance details

Defined in Data.Tuple.Only

Associated Types

type Rep (Only a) :: * -> * #

Methods

from :: Only a -> Rep (Only a) x #

to :: Rep (Only a) x -> Only a #

Generic (Complex a) 
Instance details

Defined in Data.Complex

Associated Types

type Rep (Complex a) :: * -> * #

Methods

from :: Complex a -> Rep (Complex a) x #

to :: Rep (Complex a) x -> Complex a #

Generic (Min a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Min a) :: * -> * #

Methods

from :: Min a -> Rep (Min a) x #

to :: Rep (Min a) x -> Min a #

Generic (Max a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Max a) :: * -> * #

Methods

from :: Max a -> Rep (Max a) x #

to :: Rep (Max a) x -> Max a #

Generic (First a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (First a) :: * -> * #

Methods

from :: First a -> Rep (First a) x #

to :: Rep (First a) x -> First a #

Generic (Last a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Last a) :: * -> * #

Methods

from :: Last a -> Rep (Last a) x #

to :: Rep (Last a) x -> Last a #

Generic (WrappedMonoid m) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (WrappedMonoid m) :: * -> * #

Generic (Option a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Option a) :: * -> * #

Methods

from :: Option a -> Rep (Option a) x #

to :: Rep (Option a) x -> Option a #

Generic (ZipList a) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (ZipList a) :: * -> * #

Methods

from :: ZipList a -> Rep (ZipList a) x #

to :: Rep (ZipList a) x -> ZipList a #

Generic (Identity a) 
Instance details

Defined in Data.Functor.Identity

Associated Types

type Rep (Identity a) :: * -> * #

Methods

from :: Identity a -> Rep (Identity a) x #

to :: Rep (Identity a) x -> Identity a #

Generic (First a) 
Instance details

Defined in Data.Monoid

Associated Types

type Rep (First a) :: * -> * #

Methods

from :: First a -> Rep (First a) x #

to :: Rep (First a) x -> First a #

Generic (Last a) 
Instance details

Defined in Data.Monoid

Associated Types

type Rep (Last a) :: * -> * #

Methods

from :: Last a -> Rep (Last a) x #

to :: Rep (Last a) x -> Last a #

Generic (Dual a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Dual a) :: * -> * #

Methods

from :: Dual a -> Rep (Dual a) x #

to :: Rep (Dual a) x -> Dual a #

Generic (Endo a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Endo a) :: * -> * #

Methods

from :: Endo a -> Rep (Endo a) x #

to :: Rep (Endo a) x -> Endo a #

Generic (Sum a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Sum a) :: * -> * #

Methods

from :: Sum a -> Rep (Sum a) x #

to :: Rep (Sum a) x -> Sum a #

Generic (Product a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Product a) :: * -> * #

Methods

from :: Product a -> Rep (Product a) x #

to :: Rep (Product a) x -> Product a #

Generic (NonEmpty a) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (NonEmpty a) :: * -> * #

Methods

from :: NonEmpty a -> Rep (NonEmpty a) x #

to :: Rep (NonEmpty a) x -> NonEmpty a #

Generic (Tree a) 
Instance details

Defined in Data.Tree

Associated Types

type Rep (Tree a) :: * -> * #

Methods

from :: Tree a -> Rep (Tree a) x #

to :: Rep (Tree a) x -> Tree a #

Generic (ViewL a) 
Instance details

Defined in Data.Sequence.Internal

Associated Types

type Rep (ViewL a) :: * -> * #

Methods

from :: ViewL a -> Rep (ViewL a) x #

to :: Rep (ViewL a) x -> ViewL a #

Generic (ViewR a) 
Instance details

Defined in Data.Sequence.Internal

Associated Types

type Rep (ViewR a) :: * -> * #

Methods

from :: ViewR a -> Rep (ViewR a) x #

to :: Rep (ViewR a) x -> ViewR a #

Generic (Finite n) 
Instance details

Defined in Data.Finite.Internal

Associated Types

type Rep (Finite n) :: * -> * #

Methods

from :: Finite n -> Rep (Finite n) x #

to :: Rep (Finite n) x -> Finite n #

Generic (Doc a) 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Associated Types

type Rep (Doc a) :: * -> * #

Methods

from :: Doc a -> Rep (Doc a) x #

to :: Rep (Doc a) x -> Doc a #

Generic (Either a b) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Either a b) :: * -> * #

Methods

from :: Either a b -> Rep (Either a b) x #

to :: Rep (Either a b) x -> Either a b #

Generic (V1 p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (V1 p) :: * -> * #

Methods

from :: V1 p -> Rep (V1 p) x #

to :: Rep (V1 p) x -> V1 p #

Generic (U1 p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (U1 p) :: * -> * #

Methods

from :: U1 p -> Rep (U1 p) x #

to :: Rep (U1 p) x -> U1 p #

Generic (a, b) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b) :: * -> * #

Methods

from :: (a, b) -> Rep (a, b) x #

to :: Rep (a, b) x -> (a, b) #

Generic (Arg a b) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Arg a b) :: * -> * #

Methods

from :: Arg a b -> Rep (Arg a b) x #

to :: Rep (Arg a b) x -> Arg a b #

Generic (WrappedMonad m a) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (WrappedMonad m a) :: * -> * #

Methods

from :: WrappedMonad m a -> Rep (WrappedMonad m a) x #

to :: Rep (WrappedMonad m a) x -> WrappedMonad m a #

Generic (Proxy t) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Proxy t) :: * -> * #

Methods

from :: Proxy t -> Rep (Proxy t) x #

to :: Rep (Proxy t) x -> Proxy t #

Generic (Cofree f a) 
Instance details

Defined in Control.Comonad.Cofree

Associated Types

type Rep (Cofree f a) :: * -> * #

Methods

from :: Cofree f a -> Rep (Cofree f a) x #

to :: Rep (Cofree f a) x -> Cofree f a #

Generic (Free f a) 
Instance details

Defined in Control.Monad.Free

Associated Types

type Rep (Free f a) :: * -> * #

Methods

from :: Free f a -> Rep (Free f a) x #

to :: Rep (Free f a) x -> Free f a #

Generic (Rec1 f p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Rec1 f p) :: * -> * #

Methods

from :: Rec1 f p -> Rep (Rec1 f p) x #

to :: Rep (Rec1 f p) x -> Rec1 f p #

Generic (URec (Ptr ()) p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec (Ptr ()) p) :: * -> * #

Methods

from :: URec (Ptr ()) p -> Rep (URec (Ptr ()) p) x #

to :: Rep (URec (Ptr ()) p) x -> URec (Ptr ()) p #

Generic (URec Char p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Char p) :: * -> * #

Methods

from :: URec Char p -> Rep (URec Char p) x #

to :: Rep (URec Char p) x -> URec Char p #

Generic (URec Double p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Double p) :: * -> * #

Methods

from :: URec Double p -> Rep (URec Double p) x #

to :: Rep (URec Double p) x -> URec Double p #

Generic (URec Float p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Float p) :: * -> * #

Methods

from :: URec Float p -> Rep (URec Float p) x #

to :: Rep (URec Float p) x -> URec Float p #

Generic (URec Int p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Int p) :: * -> * #

Methods

from :: URec Int p -> Rep (URec Int p) x #

to :: Rep (URec Int p) x -> URec Int p #

Generic (URec Word p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Word p) :: * -> * #

Methods

from :: URec Word p -> Rep (URec Word p) x #

to :: Rep (URec Word p) x -> URec Word p #

Generic (a, b, c) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c) :: * -> * #

Methods

from :: (a, b, c) -> Rep (a, b, c) x #

to :: Rep (a, b, c) x -> (a, b, c) #

Generic (WrappedArrow a b c) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (WrappedArrow a b c) :: * -> * #

Methods

from :: WrappedArrow a b c -> Rep (WrappedArrow a b c) x #

to :: Rep (WrappedArrow a b c) x -> WrappedArrow a b c #

Generic (Const a b) 
Instance details

Defined in Data.Functor.Const

Associated Types

type Rep (Const a b) :: * -> * #

Methods

from :: Const a b -> Rep (Const a b) x #

to :: Rep (Const a b) x -> Const a b #

Generic (Alt f a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Alt f a) :: * -> * #

Methods

from :: Alt f a -> Rep (Alt f a) x #

to :: Rep (Alt f a) x -> Alt f a #

Generic (Join p a) 
Instance details

Defined in Data.Bifunctor.Join

Associated Types

type Rep (Join p a) :: * -> * #

Methods

from :: Join p a -> Rep (Join p a) x #

to :: Rep (Join p a) x -> Join p a #

Generic (FreeF f a b) 
Instance details

Defined in Control.Monad.Trans.Free

Associated Types

type Rep (FreeF f a b) :: * -> * #

Methods

from :: FreeF f a b -> Rep (FreeF f a b) x #

to :: Rep (FreeF f a b) x -> FreeF f a b #

Generic (Tagged s b) 
Instance details

Defined in Data.Tagged

Associated Types

type Rep (Tagged s b) :: * -> * #

Methods

from :: Tagged s b -> Rep (Tagged s b) x #

to :: Rep (Tagged s b) x -> Tagged s b #

Generic (Vector v n a) 
Instance details

Defined in Data.Vector.Generic.Sized.Internal

Associated Types

type Rep (Vector v n a) :: * -> * #

Methods

from :: Vector v n a -> Rep (Vector v n a) x #

to :: Rep (Vector v n a) x -> Vector v n a #

Generic (K1 i c p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (K1 i c p) :: * -> * #

Methods

from :: K1 i c p -> Rep (K1 i c p) x #

to :: Rep (K1 i c p) x -> K1 i c p #

Generic ((f :+: g) p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep ((f :+: g) p) :: * -> * #

Methods

from :: (f :+: g) p -> Rep ((f :+: g) p) x #

to :: Rep ((f :+: g) p) x -> (f :+: g) p #

Generic ((f :*: g) p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep ((f :*: g) p) :: * -> * #

Methods

from :: (f :*: g) p -> Rep ((f :*: g) p) x #

to :: Rep ((f :*: g) p) x -> (f :*: g) p #

Generic (a, b, c, d) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c, d) :: * -> * #

Methods

from :: (a, b, c, d) -> Rep (a, b, c, d) x #

to :: Rep (a, b, c, d) x -> (a, b, c, d) #

Generic (Product f g a) 
Instance details

Defined in Data.Functor.Product

Associated Types

type Rep (Product f g a) :: * -> * #

Methods

from :: Product f g a -> Rep (Product f g a) x #

to :: Rep (Product f g a) x -> Product f g a #

Generic (Sum f g a) 
Instance details

Defined in Data.Functor.Sum

Associated Types

type Rep (Sum f g a) :: * -> * #

Methods

from :: Sum f g a -> Rep (Sum f g a) x #

to :: Rep (Sum f g a) x -> Sum f g a #

Generic (MVector v n s a) 
Instance details

Defined in Data.Vector.Generic.Mutable.Sized.Internal

Associated Types

type Rep (MVector v n s a) :: * -> * #

Methods

from :: MVector v n s a -> Rep (MVector v n s a) x #

to :: Rep (MVector v n s a) x -> MVector v n s a #

Generic (M1 i c f p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (M1 i c f p) :: * -> * #

Methods

from :: M1 i c f p -> Rep (M1 i c f p) x #

to :: Rep (M1 i c f p) x -> M1 i c f p #

Generic ((f :.: g) p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep ((f :.: g) p) :: * -> * #

Methods

from :: (f :.: g) p -> Rep ((f :.: g) p) x #

to :: Rep ((f :.: g) p) x -> (f :.: g) p #

Generic (a, b, c, d, e) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c, d, e) :: * -> * #

Methods

from :: (a, b, c, d, e) -> Rep (a, b, c, d, e) x #

to :: Rep (a, b, c, d, e) x -> (a, b, c, d, e) #

Generic (Compose f g a) 
Instance details

Defined in Data.Functor.Compose

Associated Types

type Rep (Compose f g a) :: * -> * #

Methods

from :: Compose f g a -> Rep (Compose f g a) x #

to :: Rep (Compose f g a) x -> Compose f g a #

Generic (WrappedBifunctor p a b) 
Instance details

Defined in Data.Bifunctor.Wrapped

Associated Types

type Rep (WrappedBifunctor p a b) :: * -> * #

Methods

from :: WrappedBifunctor p a b -> Rep (WrappedBifunctor p a b) x #

to :: Rep (WrappedBifunctor p a b) x -> WrappedBifunctor p a b #

Generic (Joker g a b) 
Instance details

Defined in Data.Bifunctor.Joker

Associated Types

type Rep (Joker g a b) :: * -> * #

Methods

from :: Joker g a b -> Rep (Joker g a b) x #

to :: Rep (Joker g a b) x -> Joker g a b #

Generic (Flip p a b) 
Instance details

Defined in Data.Bifunctor.Flip

Associated Types

type Rep (Flip p a b) :: * -> * #

Methods

from :: Flip p a b -> Rep (Flip p a b) x #

to :: Rep (Flip p a b) x -> Flip p a b #

Generic (Clown f a b) 
Instance details

Defined in Data.Bifunctor.Clown

Associated Types

type Rep (Clown f a b) :: * -> * #

Methods

from :: Clown f a b -> Rep (Clown f a b) x #

to :: Rep (Clown f a b) x -> Clown f a b #

Generic (a, b, c, d, e, f) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c, d, e, f) :: * -> * #

Methods

from :: (a, b, c, d, e, f) -> Rep (a, b, c, d, e, f) x #

to :: Rep (a, b, c, d, e, f) x -> (a, b, c, d, e, f) #

Generic (Sum p q a b) 
Instance details

Defined in Data.Bifunctor.Sum

Associated Types

type Rep (Sum p q a b) :: * -> * #

Methods

from :: Sum p q a b -> Rep (Sum p q a b) x #

to :: Rep (Sum p q a b) x -> Sum p q a b #

Generic (Product f g a b) 
Instance details

Defined in Data.Bifunctor.Product

Associated Types

type Rep (Product f g a b) :: * -> * #

Methods

from :: Product f g a b -> Rep (Product f g a b) x #

to :: Rep (Product f g a b) x -> Product f g a b #

Generic (a, b, c, d, e, f, g) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c, d, e, f, g) :: * -> * #

Methods

from :: (a, b, c, d, e, f, g) -> Rep (a, b, c, d, e, f, g) x #

to :: Rep (a, b, c, d, e, f, g) x -> (a, b, c, d, e, f, g) #

Generic (Tannen f p a b) 
Instance details

Defined in Data.Bifunctor.Tannen

Associated Types

type Rep (Tannen f p a b) :: * -> * #

Methods

from :: Tannen f p a b -> Rep (Tannen f p a b) x #

to :: Rep (Tannen f p a b) x -> Tannen f p a b #

Generic (a, b, c, d, e, f, g, h) # 
Instance details

Defined in Database.Beam.Backend.Types

Associated Types

type Rep (a, b, c, d, e, f, g, h) :: * -> * #

Methods

from :: (a, b, c, d, e, f, g, h) -> Rep (a, b, c, d, e, f, g, h) x #

to :: Rep (a, b, c, d, e, f, g, h) x -> (a, b, c, d, e, f, g, h) #

Generic (Biff p f g a b) 
Instance details

Defined in Data.Bifunctor.Biff

Associated Types

type Rep (Biff p f g a b) :: * -> * #

Methods

from :: Biff p f g a b -> Rep (Biff p f g a b) x #

to :: Rep (Biff p f g a b) x -> Biff p f g a b #

data Identity a #

Identity functor and monad. (a non-strict monad)

Since: base-4.8.0.0

Instances
Monad Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

(>>=) :: Identity a -> (a -> Identity b) -> Identity b #

(>>) :: Identity a -> Identity b -> Identity b #

return :: a -> Identity a #

fail :: String -> Identity a #

Functor Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

fmap :: (a -> b) -> Identity a -> Identity b #

(<$) :: a -> Identity b -> Identity a #

MonadFix Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

mfix :: (a -> Identity a) -> Identity a #

Applicative Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

pure :: a -> Identity a #

(<*>) :: Identity (a -> b) -> Identity a -> Identity b #

liftA2 :: (a -> b -> c) -> Identity a -> Identity b -> Identity c #

(*>) :: Identity a -> Identity b -> Identity b #

(<*) :: Identity a -> Identity b -> Identity a #

Foldable Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

fold :: Monoid m => Identity m -> m #

foldMap :: Monoid m => (a -> m) -> Identity a -> m #

foldr :: (a -> b -> b) -> b -> Identity a -> b #

foldr' :: (a -> b -> b) -> b -> Identity a -> b #

foldl :: (b -> a -> b) -> b -> Identity a -> b #

foldl' :: (b -> a -> b) -> b -> Identity a -> b #

foldr1 :: (a -> a -> a) -> Identity a -> a #

foldl1 :: (a -> a -> a) -> Identity a -> a #

toList :: Identity a -> [a] #

null :: Identity a -> Bool #

length :: Identity a -> Int #

elem :: Eq a => a -> Identity a -> Bool #

maximum :: Ord a => Identity a -> a #

minimum :: Ord a => Identity a -> a #

sum :: Num a => Identity a -> a #

product :: Num a => Identity a -> a #

Traversable Identity 
Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Identity a -> f (Identity b) #

sequenceA :: Applicative f => Identity (f a) -> f (Identity a) #

mapM :: Monad m => (a -> m b) -> Identity a -> m (Identity b) #

sequence :: Monad m => Identity (m a) -> m (Identity a) #

Representable Identity 
Instance details

Defined in Data.Functor.Rep

Associated Types

type Rep Identity :: * #

Methods

tabulate :: (Rep Identity -> a) -> Identity a #

index :: Identity a -> Rep Identity -> a #

ToJSON1 Identity 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Identity a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Identity a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Identity a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Identity a] -> Encoding #

FromJSON1 Identity 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (Identity a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [Identity a] #

Eq1 Identity

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftEq :: (a -> b -> Bool) -> Identity a -> Identity b -> Bool #

Ord1 Identity

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftCompare :: (a -> b -> Ordering) -> Identity a -> Identity b -> Ordering #

Read1 Identity

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftReadsPrec :: (Int -> ReadS a) -> ReadS [a] -> Int -> ReadS (Identity a) #

liftReadList :: (Int -> ReadS a) -> ReadS [a] -> ReadS [Identity a] #

liftReadPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec (Identity a) #

liftReadListPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec [Identity a] #

Show1 Identity

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> Identity a -> ShowS #

liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [Identity a] -> ShowS #

Hashable1 Identity 
Instance details

Defined in Data.Hashable.Class

Methods

liftHashWithSalt :: (Int -> a -> Int) -> Int -> Identity a -> Int #

(BeamBackend be, Generic (tbl (Nullable Identity)), Generic (tbl (Nullable Exposed)), GFromBackendRow be (Rep (tbl (Nullable Exposed))) (Rep (tbl (Nullable Identity)))) => FromBackendRow be (tbl (Nullable Identity)) Source # 
Instance details

Defined in Database.Beam.Backend.Types

(BeamBackend be, Generic (tbl Identity), Generic (tbl Exposed), GFromBackendRow be (Rep (tbl Exposed)) (Rep (tbl Identity))) => FromBackendRow be (tbl Identity) Source # 
Instance details

Defined in Database.Beam.Backend.Types

FieldsFulfillConstraintNullable c t => GFieldsFulfillConstraint c (K1 R (t (Nullable Exposed)) :: * -> *) (K1 R (t (Nullable Identity)) :: * -> *) (K1 R (t (Nullable (WithConstraint c))) :: * -> *) Source # 
Instance details

Defined in Database.Beam.Schema.Tables

FieldsFulfillConstraint c t => GFieldsFulfillConstraint c (K1 R (t Exposed) :: * -> *) (K1 R (t Identity) :: * -> *) (K1 R (t (WithConstraint c)) :: * -> *) Source # 
Instance details

Defined in Database.Beam.Schema.Tables

Methods

gWithConstrainedFields :: Proxy c -> Proxy (K1 R (t Exposed)) -> K1 R (t Identity) () -> K1 R (t (WithConstraint c)) () Source #

Bounded a => Bounded (Identity a) 
Instance details

Defined in Data.Functor.Identity

Enum a => Enum (Identity a) 
Instance details

Defined in Data.Functor.Identity

Eq a => Eq (Identity a) 
Instance details

Defined in Data.Functor.Identity

Methods

(==) :: Identity a -> Identity a -> Bool #

(/=) :: Identity a -> Identity a -> Bool #

Floating a => Floating (Identity a) 
Instance details

Defined in Data.Functor.Identity

Fractional a => Fractional (Identity a) 
Instance details

Defined in Data.Functor.Identity

Integral a => Integral (Identity a) 
Instance details

Defined in Data.Functor.Identity

Num a => Num (Identity a) 
Instance details

Defined in Data.Functor.Identity

Ord a => Ord (Identity a) 
Instance details

Defined in Data.Functor.Identity

Methods

compare :: Identity a -> Identity a -> Ordering #

(<) :: Identity a -> Identity a -> Bool #

(<=) :: Identity a -> Identity a -> Bool #

(>) :: Identity a -> Identity a -> Bool #

(>=) :: Identity a -> Identity a -> Bool #

max :: Identity a -> Identity a -> Identity a #

min :: Identity a -> Identity a -> Identity a #

Read a => Read (Identity a)

This instance would be equivalent to the derived instances of the Identity newtype if the runIdentity field were removed

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Real a => Real (Identity a) 
Instance details

Defined in Data.Functor.Identity

Methods

toRational :: Identity a -> Rational #

RealFloat a => RealFloat (Identity a) 
Instance details

Defined in Data.Functor.Identity

RealFrac a => RealFrac (Identity a) 
Instance details

Defined in Data.Functor.Identity

Methods

properFraction :: Integral b => Identity a -> (b, Identity a) #

truncate :: Integral b => Identity a -> b #

round :: Integral b => Identity a -> b #

ceiling :: Integral b => Identity a -> b #

floor :: Integral b => Identity a -> b #

Show a => Show (Identity a)

This instance would be equivalent to the derived instances of the Identity newtype if the runIdentity field were removed

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

showsPrec :: Int -> Identity a -> ShowS #

show :: Identity a -> String #

showList :: [Identity a] -> ShowS #

Ix a => Ix (Identity a) 
Instance details

Defined in Data.Functor.Identity

IsString a => IsString (Identity a) 
Instance details

Defined in Data.String

Methods

fromString :: String -> Identity a #

Generic (Identity a) 
Instance details

Defined in Data.Functor.Identity

Associated Types

type Rep (Identity a) :: * -> * #

Methods

from :: Identity a -> Rep (Identity a) x #

to :: Rep (Identity a) x -> Identity 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 #

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 #

Hashable a => Hashable (Identity a) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Identity a -> Int #

hash :: Identity a -> Int #

ToJSON a => ToJSON (Identity a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSONKey a => ToJSONKey (Identity a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON a => FromJSON (Identity a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

FromJSONKey a => FromJSONKey (Identity a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Storable a => Storable (Identity a) 
Instance details

Defined in Data.Functor.Identity

Methods

sizeOf :: Identity a -> Int #

alignment :: Identity a -> Int #

peekElemOff :: Ptr (Identity a) -> Int -> IO (Identity a) #

pokeElemOff :: Ptr (Identity a) -> Int -> Identity a -> IO () #

peekByteOff :: Ptr b -> Int -> IO (Identity a) #

pokeByteOff :: Ptr b -> Int -> Identity a -> IO () #

peek :: Ptr (Identity a) -> IO (Identity a) #

poke :: Ptr (Identity a) -> Identity a -> IO () #

Bits a => Bits (Identity a) 
Instance details

Defined in Data.Functor.Identity

FiniteBits a => FiniteBits (Identity a) 
Instance details

Defined in Data.Functor.Identity

Generic1 Identity 
Instance details

Defined in Data.Functor.Identity

Associated Types

type Rep1 Identity :: k -> * #

Methods

from1 :: Identity a -> Rep1 Identity a #

to1 :: Rep1 Identity a -> Identity a #

Table t => SqlJustable (t Identity) (t (Nullable Identity)) Source # 
Instance details

Defined in Database.Beam.Query.Combinators

Table t => SqlJustable (PrimaryKey t Identity) (PrimaryKey t (Nullable Identity)) Source # 
Instance details

Defined in Database.Beam.Query.Combinators

type Rep Identity 
Instance details

Defined in Data.Functor.Rep

type Rep Identity = ()
type Rep (Identity a) 
Instance details

Defined in Data.Functor.Identity

type Rep (Identity a) = D1 (MetaData "Identity" "Data.Functor.Identity" "base" True) (C1 (MetaCons "Identity" PrefixI True) (S1 (MetaSel (Just "runIdentity") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 Identity 
Instance details

Defined in Data.Functor.Identity

type Rep1 Identity = D1 (MetaData "Identity" "Data.Functor.Identity" "base" True) (C1 (MetaCons "Identity" PrefixI True) (S1 (MetaSel (Just "runIdentity") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))