GHC.Utils.Monad

Utilities related to Monad and Applicative classes Mostly for backwards compatibility.

Documentation

class Functor f => Applicative (f :: Type -> Type) where

Minimal complete definition

pure, ((<*>) | liftA2)

Methods

pure :: a -> f a

(<*>) :: f (a -> b) -> f a -> f b

liftA2 :: (a -> b -> c) -> f a -> f b -> f c

(*>) :: f a -> f b -> f b

(<*) :: f a -> f b -> f a

Instances

Applicative Complex

Since: base-4.9.0.0

Defined in Data.Complex

Methods

pure :: a -> Complex a

(<*>) :: Complex (a -> b) -> Complex a -> Complex b

liftA2 :: (a -> b -> c) -> Complex a -> Complex b -> Complex c

(*>) :: Complex a -> Complex b -> Complex b

(<*) :: Complex a -> Complex b -> Complex a

Applicative First

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

pure :: a -> First a

(<*>) :: First (a -> b) -> First a -> First b

liftA2 :: (a -> b -> c) -> First a -> First b -> First c

(*>) :: First a -> First b -> First b

(<*) :: First a -> First b -> First a

Applicative Last

Since: base-4.9.0.0

Defined in Data.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

Applicative Max

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

pure :: a -> Max a

(<*>) :: Max (a -> b) -> Max a -> Max b

liftA2 :: (a -> b -> c) -> Max a -> Max b -> Max c

(*>) :: Max a -> Max b -> Max b

(<*) :: Max a -> Max b -> Max a

Applicative Min

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

pure :: a -> Min a

(<*>) :: Min (a -> b) -> Min a -> Min b

liftA2 :: (a -> b -> c) -> Min a -> Min b -> Min c

(*>) :: Min a -> Min b -> Min b

(<*) :: Min a -> Min b -> Min a

Applicative Get

Defined in Data.Binary.Get.Internal

Methods

pure :: a -> Get a

(<*>) :: Get (a -> b) -> Get a -> Get b

liftA2 :: (a -> b -> c) -> Get a -> Get b -> Get c

(*>) :: Get a -> Get b -> Get b

(<*) :: Get a -> Get b -> Get a

Applicative PutM

Defined in Data.Binary.Put

Methods

pure :: a -> PutM a

(<*>) :: PutM (a -> b) -> PutM a -> PutM b

liftA2 :: (a -> b -> c) -> PutM a -> PutM b -> PutM c

(*>) :: PutM a -> PutM b -> PutM b

(<*) :: PutM a -> PutM b -> PutM a

Applicative Put

Defined in Data.ByteString.Builder.Internal

Methods

pure :: a -> Put a

(<*>) :: Put (a -> b) -> Put a -> Put b

liftA2 :: (a -> b -> c) -> Put a -> Put b -> Put c

(*>) :: Put a -> Put b -> Put b

(<*) :: Put a -> Put b -> Put a

Applicative Seq

Since: containers-0.5.4

Defined in Data.Sequence.Internal

Methods

pure :: a -> Seq a

(<*>) :: Seq (a -> b) -> Seq a -> Seq b

liftA2 :: (a -> b -> c) -> Seq a -> Seq b -> Seq c

(*>) :: Seq a -> Seq b -> Seq b

(<*) :: Seq a -> Seq b -> Seq a

Applicative Tree

Defined in Data.Tree

Methods

pure :: a -> Tree a

(<*>) :: Tree (a -> b) -> Tree a -> Tree b

liftA2 :: (a -> b -> c) -> Tree a -> Tree b -> Tree c

(*>) :: Tree a -> Tree b -> Tree b

(<*) :: Tree a -> Tree b -> Tree a

Applicative PD

Defined in GHC.Cmm.Parser.Monad

Methods

pure :: a -> PD a

(<*>) :: PD (a -> b) -> PD a -> PD b

liftA2 :: (a -> b -> c) -> PD a -> PD b -> PD c

(*>) :: PD a -> PD b -> PD b

(<*) :: PD a -> PD b -> PD a

Applicative NatM

Defined in GHC.CmmToAsm.Monad

Methods

pure :: a -> NatM a

(<*>) :: NatM (a -> b) -> NatM a -> NatM b

liftA2 :: (a -> b -> c) -> NatM a -> NatM b -> NatM c

(*>) :: NatM a -> NatM b -> NatM b

(<*) :: NatM a -> NatM b -> NatM a

Applicative LlvmM

Defined in GHC.CmmToLlvm.Base

Methods

pure :: a -> LlvmM a

(<*>) :: LlvmM (a -> b) -> LlvmM a -> LlvmM b

liftA2 :: (a -> b -> c) -> LlvmM a -> LlvmM b -> LlvmM c

(*>) :: LlvmM a -> LlvmM b -> LlvmM b

(<*) :: LlvmM a -> LlvmM b -> LlvmM a

Applicative CoreM

Defined in GHC.Core.Opt.Monad

Methods

pure :: a -> CoreM a

(<*>) :: CoreM (a -> b) -> CoreM a -> CoreM b

liftA2 :: (a -> b -> c) -> CoreM a -> CoreM b -> CoreM c

(*>) :: CoreM a -> CoreM b -> CoreM b

(<*) :: CoreM a -> CoreM b -> CoreM a

Applicative SimplM

Defined in GHC.Core.Opt.Simplify.Monad

Methods

pure :: a -> SimplM a

(<*>) :: SimplM (a -> b) -> SimplM a -> SimplM b

liftA2 :: (a -> b -> c) -> SimplM a -> SimplM b -> SimplM c

(*>) :: SimplM a -> SimplM b -> SimplM b

(<*) :: SimplM a -> SimplM b -> SimplM a

Applicative UnifyResultM

Defined in GHC.Core.Unify

Methods

pure :: a -> UnifyResultM a

(<*>) :: UnifyResultM (a -> b) -> UnifyResultM a -> UnifyResultM b

liftA2 :: (a -> b -> c) -> UnifyResultM a -> UnifyResultM b -> UnifyResultM c

(*>) :: UnifyResultM a -> UnifyResultM b -> UnifyResultM b

(<*) :: UnifyResultM a -> UnifyResultM b -> UnifyResultM a

Applicative NullCollapseViz

Defined in GHC.Data.Graph.Collapse

Methods

pure :: a -> NullCollapseViz a

(<*>) :: NullCollapseViz (a -> b) -> NullCollapseViz a -> NullCollapseViz b

liftA2 :: (a -> b -> c) -> NullCollapseViz a -> NullCollapseViz b -> NullCollapseViz c

(*>) :: NullCollapseViz a -> NullCollapseViz b -> NullCollapseViz b

(<*) :: NullCollapseViz a -> NullCollapseViz b -> NullCollapseViz a

Applicative Infinite

Defined in GHC.Data.List.Infinite

Methods

pure :: a -> Infinite a

(<*>) :: Infinite (a -> b) -> Infinite a -> Infinite b

liftA2 :: (a -> b -> c) -> Infinite a -> Infinite b -> Infinite c

(*>) :: Infinite a -> Infinite b -> Infinite b

(<*) :: Infinite a -> Infinite b -> Infinite a

Applicative Pair

Defined in GHC.Data.Pair

Methods

pure :: a -> Pair a

(<*>) :: Pair (a -> b) -> Pair a -> Pair b

liftA2 :: (a -> b -> c) -> Pair a -> Pair b -> Pair c

(*>) :: Pair a -> Pair b -> Pair b

(<*) :: Pair a -> Pair b -> Pair a

Applicative Maybe

Defined in GHC.Data.Strict

Methods

pure :: a -> Maybe a

(<*>) :: Maybe (a -> b) -> Maybe a -> Maybe b

liftA2 :: (a -> b -> c) -> Maybe a -> Maybe b -> Maybe c

(*>) :: Maybe a -> Maybe b -> Maybe b

(<*) :: Maybe a -> Maybe b -> Maybe a

Applicative Hsc

Defined in GHC.Driver.Env.Types

Methods

pure :: a -> Hsc a

(<*>) :: Hsc (a -> b) -> Hsc a -> Hsc b

liftA2 :: (a -> b -> c) -> Hsc a -> Hsc b -> Hsc c

(*>) :: Hsc a -> Hsc b -> Hsc b

(<*) :: Hsc a -> Hsc b -> Hsc a

Applicative Ghc

Defined in GHC.Driver.Monad

Methods

pure :: a -> Ghc a

(<*>) :: Ghc (a -> b) -> Ghc a -> Ghc b

liftA2 :: (a -> b -> c) -> Ghc a -> Ghc b -> Ghc c

(*>) :: Ghc a -> Ghc b -> Ghc b

(<*) :: Ghc a -> Ghc b -> Ghc a

Applicative HookedUse

Defined in GHC.Driver.Pipeline.Execute

Methods

pure :: a -> HookedUse a

(<*>) :: HookedUse (a -> b) -> HookedUse a -> HookedUse b

liftA2 :: (a -> b -> c) -> HookedUse a -> HookedUse b -> HookedUse c

(*>) :: HookedUse a -> HookedUse b -> HookedUse b

(<*) :: HookedUse a -> HookedUse b -> HookedUse a

Applicative MatchResult

Product is an "or" on fallibility---the combined match result is infallible only if the left and right argument match results both were.

This is useful for combining a bunch of alternatives together and then getting the overall fallibility of the entire group. See mkDataConCase for an example.

Defined in GHC.HsToCore.Monad

Methods

pure :: a -> MatchResult a

(<*>) :: MatchResult (a -> b) -> MatchResult a -> MatchResult b

liftA2 :: (a -> b -> c) -> MatchResult a -> MatchResult b -> MatchResult c

(*>) :: MatchResult a -> MatchResult b -> MatchResult b

(<*) :: MatchResult a -> MatchResult b -> MatchResult a

Applicative P

Defined in GHC.Parser.Lexer

Methods

pure :: a -> P a

(<*>) :: P (a -> b) -> P a -> P b

liftA2 :: (a -> b -> c) -> P a -> P b -> P c

(*>) :: P a -> P b -> P b

(<*) :: P a -> P b -> P a

Applicative PV

Defined in GHC.Parser.PostProcess

Methods

pure :: a -> PV a

(<*>) :: PV (a -> b) -> PV a -> PV b

liftA2 :: (a -> b -> c) -> PV a -> PV b -> PV c

(*>) :: PV a -> PV b -> PV b

(<*) :: PV a -> PV b -> PV a

Applicative CpsRn

Defined in GHC.Rename.Pat

Methods

pure :: a -> CpsRn a

(<*>) :: CpsRn (a -> b) -> CpsRn a -> CpsRn b

liftA2 :: (a -> b -> c) -> CpsRn a -> CpsRn b -> CpsRn c

(*>) :: CpsRn a -> CpsRn b -> CpsRn b

(<*) :: CpsRn a -> CpsRn b -> CpsRn a

Applicative LiftM

Defined in GHC.Stg.Lift.Monad

Methods

pure :: a -> LiftM a

(<*>) :: LiftM (a -> b) -> LiftM a -> LiftM b

liftA2 :: (a -> b -> c) -> LiftM a -> LiftM b -> LiftM c

(*>) :: LiftM a -> LiftM b -> LiftM b

(<*) :: LiftM a -> LiftM b -> LiftM a

Applicative CmmParse

Defined in GHC.StgToCmm.ExtCode

Methods

pure :: a -> CmmParse a

(<*>) :: CmmParse (a -> b) -> CmmParse a -> CmmParse b

liftA2 :: (a -> b -> c) -> CmmParse a -> CmmParse b -> CmmParse c

(*>) :: CmmParse a -> CmmParse b -> CmmParse b

(<*) :: CmmParse a -> CmmParse b -> CmmParse a

Applicative FCode

Defined in GHC.StgToCmm.Monad

Methods

pure :: a -> FCode a

(<*>) :: FCode (a -> b) -> FCode a -> FCode b

liftA2 :: (a -> b -> c) -> FCode a -> FCode b -> FCode c

(*>) :: FCode a -> FCode b -> FCode b

(<*) :: FCode a -> FCode b -> FCode a

Applicative SolverStage

Defined in GHC.Tc.Solver.Monad

Methods

pure :: a -> SolverStage a

(<*>) :: SolverStage (a -> b) -> SolverStage a -> SolverStage b

liftA2 :: (a -> b -> c) -> SolverStage a -> SolverStage b -> SolverStage c

(*>) :: SolverStage a -> SolverStage b -> SolverStage b

(<*) :: SolverStage a -> SolverStage b -> SolverStage a

Applicative TcS

Defined in GHC.Tc.Solver.Monad

Methods

pure :: a -> TcS a

(<*>) :: TcS (a -> b) -> TcS a -> TcS b

liftA2 :: (a -> b -> c) -> TcS a -> TcS b -> TcS c

(*>) :: TcS a -> TcS b -> TcS b

(<*) :: TcS a -> TcS b -> TcS a

Applicative TcPluginM

Defined in GHC.Tc.Types

Methods

pure :: a -> TcPluginM a

(<*>) :: TcPluginM (a -> b) -> TcPluginM a -> TcPluginM b

liftA2 :: (a -> b -> c) -> TcPluginM a -> TcPluginM b -> TcPluginM c

(*>) :: TcPluginM a -> TcPluginM b -> TcPluginM b

(<*) :: TcPluginM a -> TcPluginM b -> TcPluginM a

Applicative ZonkM

Defined in GHC.Tc.Zonk.Monad

Methods

pure :: a -> ZonkM a

(<*>) :: ZonkM (a -> b) -> ZonkM a -> ZonkM b

liftA2 :: (a -> b -> c) -> ZonkM a -> ZonkM b -> ZonkM c

(*>) :: ZonkM a -> ZonkM b -> ZonkM b

(<*) :: ZonkM a -> ZonkM b -> ZonkM a

Applicative UniqSM

Defined in GHC.Types.Unique.Supply

Methods

pure :: a -> UniqSM a

(<*>) :: UniqSM (a -> b) -> UniqSM a -> UniqSM b

liftA2 :: (a -> b -> c) -> UniqSM a -> UniqSM b -> UniqSM c

(*>) :: UniqSM a -> UniqSM b -> UniqSM b

(<*) :: UniqSM a -> UniqSM b -> UniqSM a

Applicative NonEmpty

Defined in GHC.Internal.Base

Methods

pure :: a -> NonEmpty a

(<*>) :: NonEmpty (a -> b) -> NonEmpty a -> NonEmpty b

liftA2 :: (a -> b -> c) -> NonEmpty a -> NonEmpty b -> NonEmpty c

(*>) :: NonEmpty a -> NonEmpty b -> NonEmpty b

(<*) :: NonEmpty a -> NonEmpty b -> NonEmpty a

Applicative STM

Defined in GHC.Internal.Conc.Sync

Methods

pure :: a -> STM a

(<*>) :: STM (a -> b) -> STM a -> STM b

liftA2 :: (a -> b -> c) -> STM a -> STM b -> STM c

(*>) :: STM a -> STM b -> STM b

(<*) :: STM a -> STM b -> STM a

Applicative Identity

Defined in GHC.Internal.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

Applicative First

Defined in GHC.Internal.Data.Monoid

Methods

pure :: a -> First a

(<*>) :: First (a -> b) -> First a -> First b

liftA2 :: (a -> b -> c) -> First a -> First b -> First c

(*>) :: First a -> First b -> First b

(<*) :: First a -> First b -> First a

Applicative Last

Defined in GHC.Internal.Data.Monoid

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

Applicative Down

Defined in GHC.Internal.Data.Ord

Methods

pure :: a -> Down a

(<*>) :: Down (a -> b) -> Down a -> Down b

liftA2 :: (a -> b -> c) -> Down a -> Down b -> Down c

(*>) :: Down a -> Down b -> Down b

(<*) :: Down a -> Down b -> Down a

Applicative Dual

Defined in GHC.Internal.Data.Semigroup.Internal

Methods

pure :: a -> Dual a

(<*>) :: Dual (a -> b) -> Dual a -> Dual b

liftA2 :: (a -> b -> c) -> Dual a -> Dual b -> Dual c

(*>) :: Dual a -> Dual b -> Dual b

(<*) :: Dual a -> Dual b -> Dual a

Applicative Product

Defined in GHC.Internal.Data.Semigroup.Internal

Methods

pure :: a -> Product a

(<*>) :: Product (a -> b) -> Product a -> Product b

liftA2 :: (a -> b -> c) -> Product a -> Product b -> Product c

(*>) :: Product a -> Product b -> Product b

(<*) :: Product a -> Product b -> Product a

Applicative Sum

Defined in GHC.Internal.Data.Semigroup.Internal

Methods

pure :: a -> Sum a

(<*>) :: Sum (a -> b) -> Sum a -> Sum b

liftA2 :: (a -> b -> c) -> Sum a -> Sum b -> Sum c

(*>) :: Sum a -> Sum b -> Sum b

(<*) :: Sum a -> Sum b -> Sum a

Applicative ZipList

Defined in GHC.Internal.Functor.ZipList

Methods

pure :: a -> ZipList a

(<*>) :: ZipList (a -> b) -> ZipList a -> ZipList b

liftA2 :: (a -> b -> c) -> ZipList a -> ZipList b -> ZipList c

(*>) :: ZipList a -> ZipList b -> ZipList b

(<*) :: ZipList a -> ZipList b -> ZipList a

Applicative Par1

Defined in GHC.Internal.Generics

Methods

pure :: a -> Par1 a

(<*>) :: Par1 (a -> b) -> Par1 a -> Par1 b

liftA2 :: (a -> b -> c) -> Par1 a -> Par1 b -> Par1 c

(*>) :: Par1 a -> Par1 b -> Par1 b

(<*) :: Par1 a -> Par1 b -> Par1 a

Applicative P

Defined in GHC.Internal.Text.ParserCombinators.ReadP

Methods

pure :: a -> P a

(<*>) :: P (a -> b) -> P a -> P b

liftA2 :: (a -> b -> c) -> P a -> P b -> P c

(*>) :: P a -> P b -> P b

(<*) :: P a -> P b -> P a

Applicative ReadP

Defined in GHC.Internal.Text.ParserCombinators.ReadP

Methods

pure :: a -> ReadP a

(<*>) :: ReadP (a -> b) -> ReadP a -> ReadP b

liftA2 :: (a -> b -> c) -> ReadP a -> ReadP b -> ReadP c

(*>) :: ReadP a -> ReadP b -> ReadP b

(<*) :: ReadP a -> ReadP b -> ReadP a

Applicative ReadPrec

Defined in GHC.Internal.Text.ParserCombinators.ReadPrec

Methods

pure :: a -> ReadPrec a

(<*>) :: ReadPrec (a -> b) -> ReadPrec a -> ReadPrec b

liftA2 :: (a -> b -> c) -> ReadPrec a -> ReadPrec b -> ReadPrec c

(*>) :: ReadPrec a -> ReadPrec b -> ReadPrec b

(<*) :: ReadPrec a -> ReadPrec b -> ReadPrec a

Applicative IO

Defined in GHC.Internal.Base

Methods

pure :: a -> IO a

(<*>) :: IO (a -> b) -> IO a -> IO b

liftA2 :: (a -> b -> c) -> IO a -> IO b -> IO c

(*>) :: IO a -> IO b -> IO b

(<*) :: IO a -> IO b -> IO a

Applicative GHCiQ

Defined in GHCi.TH

Methods

pure :: a -> GHCiQ a

(<*>) :: GHCiQ (a -> b) -> GHCiQ a -> GHCiQ b

liftA2 :: (a -> b -> c) -> GHCiQ a -> GHCiQ b -> GHCiQ c

(*>) :: GHCiQ a -> GHCiQ b -> GHCiQ b

(<*) :: GHCiQ a -> GHCiQ b -> GHCiQ a

Applicative PprM

Defined in Language.Haskell.TH.PprLib

Methods

pure :: a -> PprM a

(<*>) :: PprM (a -> b) -> PprM a -> PprM b

liftA2 :: (a -> b -> c) -> PprM a -> PprM b -> PprM c

(*>) :: PprM a -> PprM b -> PprM b

(<*) :: PprM a -> PprM b -> PprM a

Applicative Q

Defined in Language.Haskell.TH.Syntax

Methods

pure :: a -> Q a

(<*>) :: Q (a -> b) -> Q a -> Q b

liftA2 :: (a -> b -> c) -> Q a -> Q b -> Q c

(*>) :: Q a -> Q b -> Q b

(<*) :: Q a -> Q b -> Q a

Applicative Maybe

Defined in GHC.Internal.Base

Methods

pure :: a -> Maybe a

(<*>) :: Maybe (a -> b) -> Maybe a -> Maybe b

liftA2 :: (a -> b -> c) -> Maybe a -> Maybe b -> Maybe c

(*>) :: Maybe a -> Maybe b -> Maybe b

(<*) :: Maybe a -> Maybe b -> Maybe a

Applicative Solo

Defined in GHC.Internal.Base

Methods

pure :: a -> Solo a

(<*>) :: Solo (a -> b) -> Solo a -> Solo b

liftA2 :: (a -> b -> c) -> Solo a -> Solo b -> Solo c

(*>) :: Solo a -> Solo b -> Solo b

(<*) :: Solo a -> Solo b -> Solo a

Applicative []

Defined in GHC.Internal.Base

Methods

pure :: a -> [a]

(<*>) :: [a -> b] -> [a] -> [b]

liftA2 :: (a -> b -> c) -> [a] -> [b] -> [c]

(*>) :: [a] -> [b] -> [b]

(<*) :: [a] -> [b] -> [a]

Monad m => Applicative (WrappedMonad m)

Since: base-2.1

Defined in Control.Applicative

Methods

pure :: a -> WrappedMonad m a

(<*>) :: WrappedMonad m (a -> b) -> WrappedMonad m a -> WrappedMonad m b

liftA2 :: (a -> b -> c) -> WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m c

(*>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b

(<*) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m a

Applicative (SetM s)

Defined in Data.Graph

Methods

pure :: a -> SetM s a

(<*>) :: SetM s (a -> b) -> SetM s a -> SetM s b

liftA2 :: (a -> b -> c) -> SetM s a -> SetM s b -> SetM s c

(*>) :: SetM s a -> SetM s b -> SetM s b

(<*) :: SetM s a -> SetM s b -> SetM s a

Monad m => Applicative (CatchT m)

Defined in Control.Monad.Catch.Pure

Methods

pure :: a -> CatchT m a

(<*>) :: CatchT m (a -> b) -> CatchT m a -> CatchT m b

liftA2 :: (a -> b -> c) -> CatchT m a -> CatchT m b -> CatchT m c

(*>) :: CatchT m a -> CatchT m b -> CatchT m b

(<*) :: CatchT m a -> CatchT m b -> CatchT m a

Applicative (RegM freeRegs)

Defined in GHC.CmmToAsm.Reg.Linear.State

Methods

pure :: a -> RegM freeRegs a

(<*>) :: RegM freeRegs (a -> b) -> RegM freeRegs a -> RegM freeRegs b

liftA2 :: (a -> b -> c) -> RegM freeRegs a -> RegM freeRegs b -> RegM freeRegs c

(*>) :: RegM freeRegs a -> RegM freeRegs b -> RegM freeRegs b

(<*) :: RegM freeRegs a -> RegM freeRegs b -> RegM freeRegs a

Applicative (WasmCodeGenM w)

Defined in GHC.CmmToAsm.Wasm.Types

Methods

pure :: a -> WasmCodeGenM w a

(<*>) :: WasmCodeGenM w (a -> b) -> WasmCodeGenM w a -> WasmCodeGenM w b

liftA2 :: (a -> b -> c) -> WasmCodeGenM w a -> WasmCodeGenM w b -> WasmCodeGenM w c

(*>) :: WasmCodeGenM w a -> WasmCodeGenM w b -> WasmCodeGenM w b

(<*) :: WasmCodeGenM w a -> WasmCodeGenM w b -> WasmCodeGenM w a

Applicative (IOEnv m)

Defined in GHC.Data.IOEnv

Methods

pure :: a -> IOEnv m a

(<*>) :: IOEnv m (a -> b) -> IOEnv m a -> IOEnv m b

liftA2 :: (a -> b -> c) -> IOEnv m a -> IOEnv m b -> IOEnv m c

(*>) :: IOEnv m a -> IOEnv m b -> IOEnv m b

(<*) :: IOEnv m a -> IOEnv m b -> IOEnv m a

Applicative (MaybeErr err)

Defined in GHC.Data.Maybe

Methods

pure :: a -> MaybeErr err a

(<*>) :: MaybeErr err (a -> b) -> MaybeErr err a -> MaybeErr err b

liftA2 :: (a -> b -> c) -> MaybeErr err a -> MaybeErr err b -> MaybeErr err c

(*>) :: MaybeErr err a -> MaybeErr err b -> MaybeErr err b

(<*) :: MaybeErr err a -> MaybeErr err b -> MaybeErr err a

Monad m => Applicative (EwM m)

Defined in GHC.Driver.CmdLine

Methods

pure :: a -> EwM m a

(<*>) :: EwM m (a -> b) -> EwM m a -> EwM m b

liftA2 :: (a -> b -> c) -> EwM m a -> EwM m b -> EwM m c

(*>) :: EwM m a -> EwM m b -> EwM m b

(<*) :: EwM m a -> EwM m b -> EwM m a

Applicative m => Applicative (GhcT m)

Defined in GHC.Driver.Monad

Methods

pure :: a -> GhcT m a

(<*>) :: GhcT m (a -> b) -> GhcT m a -> GhcT m b

liftA2 :: (a -> b -> c) -> GhcT m a -> GhcT m b -> GhcT m c

(*>) :: GhcT m a -> GhcT m b -> GhcT m b

(<*) :: GhcT m a -> GhcT m b -> GhcT m a

Applicative (CmdLineP s)

Defined in GHC.Driver.Session

Methods

pure :: a -> CmdLineP s a

(<*>) :: CmdLineP s (a -> b) -> CmdLineP s a -> CmdLineP s b

liftA2 :: (a -> b -> c) -> CmdLineP s a -> CmdLineP s b -> CmdLineP s c

(*>) :: CmdLineP s a -> CmdLineP s b -> CmdLineP s b

(<*) :: CmdLineP s a -> CmdLineP s b -> CmdLineP s a

Applicative (PuResult a)

Defined in GHC.Tc.Utils.Unify

Methods

pure :: a0 -> PuResult a a0

(<*>) :: PuResult a (a0 -> b) -> PuResult a a0 -> PuResult a b

liftA2 :: (a0 -> b -> c) -> PuResult a a0 -> PuResult a b -> PuResult a c

(*>) :: PuResult a a0 -> PuResult a b -> PuResult a b

(<*) :: PuResult a a0 -> PuResult a b -> PuResult a a0

Applicative (ZonkBndrT m)

Defined in GHC.Tc.Zonk.Env

Methods

pure :: a -> ZonkBndrT m a

(<*>) :: ZonkBndrT m (a -> b) -> ZonkBndrT m a -> ZonkBndrT m b

liftA2 :: (a -> b -> c) -> ZonkBndrT m a -> ZonkBndrT m b -> ZonkBndrT m c

(*>) :: ZonkBndrT m a -> ZonkBndrT m b -> ZonkBndrT m b

(<*) :: ZonkBndrT m a -> ZonkBndrT m b -> ZonkBndrT m a

Applicative m => Applicative (ZonkT m)

Defined in GHC.Tc.Zonk.Env

Methods

pure :: a -> ZonkT m a

(<*>) :: ZonkT m (a -> b) -> ZonkT m a -> ZonkT m b

liftA2 :: (a -> b -> c) -> ZonkT m a -> ZonkT m b -> ZonkT m c

(*>) :: ZonkT m a -> ZonkT m b -> ZonkT m b

(<*) :: ZonkT m a -> ZonkT m b -> ZonkT m a

Applicative (Codensity f)

Defined in GHC.Utils.Monad.Codensity

Methods

pure :: a -> Codensity f a

(<*>) :: Codensity f (a -> b) -> Codensity f a -> Codensity f b

liftA2 :: (a -> b -> c) -> Codensity f a -> Codensity f b -> Codensity f c

(*>) :: Codensity f a -> Codensity f b -> Codensity f b

(<*) :: Codensity f a -> Codensity f b -> Codensity f a

Applicative (State s)

Defined in GHC.Utils.Monad.State.Strict

Methods

pure :: a -> State s a

(<*>) :: State s (a -> b) -> State s a -> State s b

liftA2 :: (a -> b -> c) -> State s a -> State s b -> State s c

(*>) :: State s a -> State s b -> State s b

(<*) :: State s a -> State s b -> State s a

Arrow a => Applicative (ArrowMonad a)

Defined in GHC.Internal.Control.Arrow

Methods

pure :: a0 -> ArrowMonad a a0

(<*>) :: ArrowMonad a (a0 -> b) -> ArrowMonad a a0 -> ArrowMonad a b

liftA2 :: (a0 -> b -> c) -> ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a c

(*>) :: ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a b

(<*) :: ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a a0

Applicative (Either e)

Defined in GHC.Internal.Data.Either

Methods

pure :: a -> Either e a

(<*>) :: Either e (a -> b) -> Either e a -> Either e b

liftA2 :: (a -> b -> c) -> Either e a -> Either e b -> Either e c

(*>) :: Either e a -> Either e b -> Either e b

(<*) :: Either e a -> Either e b -> Either e a

Applicative (Proxy :: Type -> Type)

Defined in GHC.Internal.Data.Proxy

Methods

pure :: a -> Proxy a

(<*>) :: Proxy (a -> b) -> Proxy a -> Proxy b

liftA2 :: (a -> b -> c) -> Proxy a -> Proxy b -> Proxy c

(*>) :: Proxy a -> Proxy b -> Proxy b

(<*) :: Proxy a -> Proxy b -> Proxy a

Applicative (U1 :: Type -> Type)

Defined in GHC.Internal.Generics

Methods

pure :: a -> U1 a

(<*>) :: U1 (a -> b) -> U1 a -> U1 b

liftA2 :: (a -> b -> c) -> U1 a -> U1 b -> U1 c

(*>) :: U1 a -> U1 b -> U1 b

(<*) :: U1 a -> U1 b -> U1 a

Applicative (ST s)

Defined in GHC.Internal.ST

Methods

pure :: a -> ST s a

(<*>) :: ST s (a -> b) -> ST s a -> ST s b

liftA2 :: (a -> b -> c) -> ST s a -> ST s b -> ST s c

(*>) :: ST s a -> ST s b -> ST s b

(<*) :: ST s a -> ST s b -> ST s a

Applicative f => Applicative (Lift f)

A combination is Pure only if both parts are.

Defined in Control.Applicative.Lift

Methods

pure :: a -> Lift f a

(<*>) :: Lift f (a -> b) -> Lift f a -> Lift f b

liftA2 :: (a -> b -> c) -> Lift f a -> Lift f b -> Lift f c

(*>) :: Lift f a -> Lift f b -> Lift f b

(<*) :: Lift f a -> Lift f b -> Lift f a

(Functor m, Monad m) => Applicative (MaybeT m)

Defined in Control.Monad.Trans.Maybe

Methods

pure :: a -> MaybeT m a

(<*>) :: MaybeT m (a -> b) -> MaybeT m a -> MaybeT m b

liftA2 :: (a -> b -> c) -> MaybeT m a -> MaybeT m b -> MaybeT m c

(*>) :: MaybeT m a -> MaybeT m b -> MaybeT m b

(<*) :: MaybeT m a -> MaybeT m b -> MaybeT m a

Monoid a => Applicative ((,) a)

Defined in GHC.Internal.Base

Methods

pure :: a0 -> (a, a0)

(<*>) :: (a, a0 -> b) -> (a, a0) -> (a, b)

liftA2 :: (a0 -> b -> c) -> (a, a0) -> (a, b) -> (a, c)

(*>) :: (a, a0) -> (a, b) -> (a, b)

(<*) :: (a, a0) -> (a, b) -> (a, a0)

Arrow a => Applicative (WrappedArrow a b)

Since: base-2.1

Defined in Control.Applicative

Methods

pure :: a0 -> WrappedArrow a b a0

(<*>) :: WrappedArrow a b (a0 -> b0) -> WrappedArrow a b a0 -> WrappedArrow a b b0

liftA2 :: (a0 -> b0 -> c) -> WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b c

(*>) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b b0

(<*) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b a0

(Applicative f, Monad f) => Applicative (WhenMissing f x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)).

Since: containers-0.5.9

Defined in Data.IntMap.Internal

Methods

pure :: a -> WhenMissing f x a

(<*>) :: WhenMissing f x (a -> b) -> WhenMissing f x a -> WhenMissing f x b

liftA2 :: (a -> b -> c) -> WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x c

(*>) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x b

(<*) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x a

Applicative (Stream m a)

Defined in GHC.Data.Stream

Methods

pure :: a0 -> Stream m a a0

(<*>) :: Stream m a (a0 -> b) -> Stream m a a0 -> Stream m a b

liftA2 :: (a0 -> b -> c) -> Stream m a a0 -> Stream m a b -> Stream m a c

(*>) :: Stream m a a0 -> Stream m a b -> Stream m a b

(<*) :: Stream m a a0 -> Stream m a b -> Stream m a a0

Monad m => Applicative (StreamS m a)

Defined in GHC.Data.Stream

Methods

pure :: a0 -> StreamS m a a0

(<*>) :: StreamS m a (a0 -> b) -> StreamS m a a0 -> StreamS m a b

liftA2 :: (a0 -> b -> c) -> StreamS m a a0 -> StreamS m a b -> StreamS m a c

(*>) :: StreamS m a a0 -> StreamS m a b -> StreamS m a b

(<*) :: StreamS m a a0 -> StreamS m a b -> StreamS m a a0

(Applicative f, Monad f) => Applicative (WhenMissing f x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)).

Since: ghc-0.5.9

Defined in GHC.Data.Word64Map.Internal

Methods

pure :: a -> WhenMissing f x a

(<*>) :: WhenMissing f x (a -> b) -> WhenMissing f x a -> WhenMissing f x b

liftA2 :: (a -> b -> c) -> WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x c

(*>) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x b

(<*) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x a

Applicative m => Applicative (Kleisli m a)

Defined in GHC.Internal.Control.Arrow

Methods

pure :: a0 -> Kleisli m a a0

(<*>) :: Kleisli m a (a0 -> b) -> Kleisli m a a0 -> Kleisli m a b

liftA2 :: (a0 -> b -> c) -> Kleisli m a a0 -> Kleisli m a b -> Kleisli m a c

(*>) :: Kleisli m a a0 -> Kleisli m a b -> Kleisli m a b

(<*) :: Kleisli m a a0 -> Kleisli m a b -> Kleisli m a a0

Monoid m => Applicative (Const m :: Type -> Type)

Defined in GHC.Internal.Data.Functor.Const

Methods

pure :: a -> Const m a

(<*>) :: Const m (a -> b) -> Const m a -> Const m b

liftA2 :: (a -> b -> c) -> Const m a -> Const m b -> Const m c

(*>) :: Const m a -> Const m b -> Const m b

(<*) :: Const m a -> Const m b -> Const m a

Applicative f => Applicative (Ap f)

Defined in GHC.Internal.Data.Monoid

Methods

pure :: a -> Ap f a

(<*>) :: Ap f (a -> b) -> Ap f a -> Ap f b

liftA2 :: (a -> b -> c) -> Ap f a -> Ap f b -> Ap f c

(*>) :: Ap f a -> Ap f b -> Ap f b

(<*) :: Ap f a -> Ap f b -> Ap f a

Applicative f => Applicative (Alt f)

Defined in GHC.Internal.Data.Semigroup.Internal

Methods

pure :: a -> Alt f a

(<*>) :: Alt f (a -> b) -> Alt f a -> Alt f b

liftA2 :: (a -> b -> c) -> Alt f a -> Alt f b -> Alt f c

(*>) :: Alt f a -> Alt f b -> Alt f b

(<*) :: Alt f a -> Alt f b -> Alt f a

(Generic1 f, Applicative (Rep1 f)) => Applicative (Generically1 f)

Defined in GHC.Internal.Generics

Methods

pure :: a -> Generically1 f a

(<*>) :: Generically1 f (a -> b) -> Generically1 f a -> Generically1 f b

liftA2 :: (a -> b -> c) -> Generically1 f a -> Generically1 f b -> Generically1 f c

(*>) :: Generically1 f a -> Generically1 f b -> Generically1 f b

(<*) :: Generically1 f a -> Generically1 f b -> Generically1 f a

Applicative f => Applicative (Rec1 f)

Defined in GHC.Internal.Generics

Methods

pure :: a -> Rec1 f a

(<*>) :: Rec1 f (a -> b) -> Rec1 f a -> Rec1 f b

liftA2 :: (a -> b -> c) -> Rec1 f a -> Rec1 f b -> Rec1 f c

(*>) :: Rec1 f a -> Rec1 f b -> Rec1 f b

(<*) :: Rec1 f a -> Rec1 f b -> Rec1 f a

Applicative f => Applicative (Backwards f)

Apply f-actions in the reverse order.

Defined in Control.Applicative.Backwards

Methods

pure :: a -> Backwards f a

(<*>) :: Backwards f (a -> b) -> Backwards f a -> Backwards f b

liftA2 :: (a -> b -> c) -> Backwards f a -> Backwards f b -> Backwards f c

(*>) :: Backwards f a -> Backwards f b -> Backwards f b

(<*) :: Backwards f a -> Backwards f b -> Backwards f a

(Monoid w, Functor m, Monad m) => Applicative (AccumT w m)

Defined in Control.Monad.Trans.Accum

Methods

pure :: a -> AccumT w m a

(<*>) :: AccumT w m (a -> b) -> AccumT w m a -> AccumT w m b

liftA2 :: (a -> b -> c) -> AccumT w m a -> AccumT w m b -> AccumT w m c

(*>) :: AccumT w m a -> AccumT w m b -> AccumT w m b

(<*) :: AccumT w m a -> AccumT w m b -> AccumT w m a

(Functor m, Monad m) => Applicative (ExceptT e m)

Defined in Control.Monad.Trans.Except

Methods

pure :: a -> ExceptT e m a

(<*>) :: ExceptT e m (a -> b) -> ExceptT e m a -> ExceptT e m b

liftA2 :: (a -> b -> c) -> ExceptT e m a -> ExceptT e m b -> ExceptT e m c

(*>) :: ExceptT e m a -> ExceptT e m b -> ExceptT e m b

(<*) :: ExceptT e m a -> ExceptT e m b -> ExceptT e m a

Applicative m => Applicative (IdentityT m)

Defined in Control.Monad.Trans.Identity

Methods

pure :: a -> IdentityT m a

(<*>) :: IdentityT m (a -> b) -> IdentityT m a -> IdentityT m b

liftA2 :: (a -> b -> c) -> IdentityT m a -> IdentityT m b -> IdentityT m c

(*>) :: IdentityT m a -> IdentityT m b -> IdentityT m b

(<*) :: IdentityT m a -> IdentityT m b -> IdentityT m a

Applicative m => Applicative (ReaderT r m)

Defined in Control.Monad.Trans.Reader

Methods

pure :: a -> ReaderT r m a

(<*>) :: ReaderT r m (a -> b) -> ReaderT r m a -> ReaderT r m b

liftA2 :: (a -> b -> c) -> ReaderT r m a -> ReaderT r m b -> ReaderT r m c

(*>) :: ReaderT r m a -> ReaderT r m b -> ReaderT r m b

(<*) :: ReaderT r m a -> ReaderT r m b -> ReaderT r m a

(Functor m, Monad m) => Applicative (SelectT r m)

Defined in Control.Monad.Trans.Select

Methods

pure :: a -> SelectT r m a

(<*>) :: SelectT r m (a -> b) -> SelectT r m a -> SelectT r m b

liftA2 :: (a -> b -> c) -> SelectT r m a -> SelectT r m b -> SelectT r m c

(*>) :: SelectT r m a -> SelectT r m b -> SelectT r m b

(<*) :: SelectT r m a -> SelectT r m b -> SelectT r m a

(Functor m, Monad m) => Applicative (StateT s m)

Defined in Control.Monad.Trans.State.Lazy

Methods

pure :: a -> StateT s m a

(<*>) :: StateT s m (a -> b) -> StateT s m a -> StateT s m b

liftA2 :: (a -> b -> c) -> StateT s m a -> StateT s m b -> StateT s m c

(*>) :: StateT s m a -> StateT s m b -> StateT s m b

(<*) :: StateT s m a -> StateT s m b -> StateT s m a

(Functor m, Monad m) => Applicative (StateT s m)

Defined in Control.Monad.Trans.State.Strict

Methods

pure :: a -> StateT s m a

(<*>) :: StateT s m (a -> b) -> StateT s m a -> StateT s m b

liftA2 :: (a -> b -> c) -> StateT s m a -> StateT s m b -> StateT s m c

(*>) :: StateT s m a -> StateT s m b -> StateT s m b

(<*) :: StateT s m a -> StateT s m b -> StateT s m a

(Functor m, Monad m) => Applicative (WriterT w m)

Defined in Control.Monad.Trans.Writer.CPS

Methods

pure :: a -> WriterT w m a

(<*>) :: WriterT w m (a -> b) -> WriterT w m a -> WriterT w m b

liftA2 :: (a -> b -> c) -> WriterT w m a -> WriterT w m b -> WriterT w m c

(*>) :: WriterT w m a -> WriterT w m b -> WriterT w m b

(<*) :: WriterT w m a -> WriterT w m b -> WriterT w m a

(Monoid w, Applicative m) => Applicative (WriterT w m)

Defined in Control.Monad.Trans.Writer.Lazy

Methods

pure :: a -> WriterT w m a

(<*>) :: WriterT w m (a -> b) -> WriterT w m a -> WriterT w m b

liftA2 :: (a -> b -> c) -> WriterT w m a -> WriterT w m b -> WriterT w m c

(*>) :: WriterT w m a -> WriterT w m b -> WriterT w m b

(<*) :: WriterT w m a -> WriterT w m b -> WriterT w m a

(Monoid w, Applicative m) => Applicative (WriterT w m)

Defined in Control.Monad.Trans.Writer.Strict

Methods

pure :: a -> WriterT w m a

(<*>) :: WriterT w m (a -> b) -> WriterT w m a -> WriterT w m b

liftA2 :: (a -> b -> c) -> WriterT w m a -> WriterT w m b -> WriterT w m c

(*>) :: WriterT w m a -> WriterT w m b -> WriterT w m b

(<*) :: WriterT w m a -> WriterT w m b -> WriterT w m a

Monoid a => Applicative (Constant a :: Type -> Type)

Defined in Data.Functor.Constant

Methods

pure :: a0 -> Constant a a0

(<*>) :: Constant a (a0 -> b) -> Constant a a0 -> Constant a b

liftA2 :: (a0 -> b -> c) -> Constant a a0 -> Constant a b -> Constant a c

(*>) :: Constant a a0 -> Constant a b -> Constant a b

(<*) :: Constant a a0 -> Constant a b -> Constant a a0

Applicative f => Applicative (Reverse f)

Derived instance.

Defined in Data.Functor.Reverse

Methods

pure :: a -> Reverse f a

(<*>) :: Reverse f (a -> b) -> Reverse f a -> Reverse f b

liftA2 :: (a -> b -> c) -> Reverse f a -> Reverse f b -> Reverse f c

(*>) :: Reverse f a -> Reverse f b -> Reverse f b

(<*) :: Reverse f a -> Reverse f b -> Reverse f a

(Monoid a, Monoid b) => Applicative ((,,) a b)

Defined in GHC.Internal.Base

Methods

pure :: a0 -> (a, b, a0)

(<*>) :: (a, b, a0 -> b0) -> (a, b, a0) -> (a, b, b0)

liftA2 :: (a0 -> b0 -> c) -> (a, b, a0) -> (a, b, b0) -> (a, b, c)

(*>) :: (a, b, a0) -> (a, b, b0) -> (a, b, b0)

(<*) :: (a, b, a0) -> (a, b, b0) -> (a, b, a0)

(Applicative f, Applicative g) => Applicative (Product f g)

Since: base-4.9.0.0

Defined in Data.Functor.Product

Methods

pure :: a -> Product f g a

(<*>) :: Product f g (a -> b) -> Product f g a -> Product f g b

liftA2 :: (a -> b -> c) -> Product f g a -> Product f g b -> Product f g c

(*>) :: Product f g a -> Product f g b -> Product f g b

(<*) :: Product f g a -> Product f g b -> Product f g a

(Monad f, Applicative f) => Applicative (WhenMatched f x y)

Equivalent to ReaderT Key (ReaderT x (ReaderT y (MaybeT f)))

Since: containers-0.5.9

Defined in Data.IntMap.Internal

Methods

pure :: a -> WhenMatched f x y a

(<*>) :: WhenMatched f x y (a -> b) -> WhenMatched f x y a -> WhenMatched f x y b

liftA2 :: (a -> b -> c) -> WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y c

(*>) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y b

(<*) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y a

(Applicative f, Monad f) => Applicative (WhenMissing f k x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)) .

Since: containers-0.5.9

Defined in Data.Map.Internal

Methods

pure :: a -> WhenMissing f k x a

(<*>) :: WhenMissing f k x (a -> b) -> WhenMissing f k x a -> WhenMissing f k x b

liftA2 :: (a -> b -> c) -> WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x c

(*>) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x b

(<*) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x a

(Monad f, Applicative f) => Applicative (WhenMatched f x y)

Equivalent to ReaderT Key (ReaderT x (ReaderT y (MaybeT f)))

Since: ghc-0.5.9

Defined in GHC.Data.Word64Map.Internal

Methods

pure :: a -> WhenMatched f x y a

(<*>) :: WhenMatched f x y (a -> b) -> WhenMatched f x y a -> WhenMatched f x y b

liftA2 :: (a -> b -> c) -> WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y c

(*>) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y b

(<*) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y a

(Applicative f, Applicative g) => Applicative (f :*: g)

Defined in GHC.Internal.Generics

Methods

pure :: a -> (f :*: g) a

(<*>) :: (f :*: g) (a -> b) -> (f :*: g) a -> (f :*: g) b

liftA2 :: (a -> b -> c) -> (f :*: g) a -> (f :*: g) b -> (f :*: g) c

(*>) :: (f :*: g) a -> (f :*: g) b -> (f :*: g) b

(<*) :: (f :*: g) a -> (f :*: g) b -> (f :*: g) a

Monoid c => Applicative (K1 i c :: Type -> Type)

Defined in GHC.Internal.Generics

Methods

pure :: a -> K1 i c a

(<*>) :: K1 i c (a -> b) -> K1 i c a -> K1 i c b

liftA2 :: (a -> b -> c0) -> K1 i c a -> K1 i c b -> K1 i c c0

(*>) :: K1 i c a -> K1 i c b -> K1 i c b

(<*) :: K1 i c a -> K1 i c b -> K1 i c a

Applicative (ContT r m)

Defined in Control.Monad.Trans.Cont

Methods

pure :: a -> ContT r m a

(<*>) :: ContT r m (a -> b) -> ContT r m a -> ContT r m b

liftA2 :: (a -> b -> c) -> ContT r m a -> ContT r m b -> ContT r m c

(*>) :: ContT r m a -> ContT r m b -> ContT r m b

(<*) :: ContT r m a -> ContT r m b -> ContT r m a

(Monoid a, Monoid b, Monoid c) => Applicative ((,,,) a b c)

Defined in GHC.Internal.Base

Methods

pure :: a0 -> (a, b, c, a0)

(<*>) :: (a, b, c, a0 -> b0) -> (a, b, c, a0) -> (a, b, c, b0)

liftA2 :: (a0 -> b0 -> c0) -> (a, b, c, a0) -> (a, b, c, b0) -> (a, b, c, c0)

(*>) :: (a, b, c, a0) -> (a, b, c, b0) -> (a, b, c, b0)

(<*) :: (a, b, c, a0) -> (a, b, c, b0) -> (a, b, c, a0)

Applicative ((->) r)

Defined in GHC.Internal.Base

Methods

pure :: a -> r -> a

(<*>) :: (r -> (a -> b)) -> (r -> a) -> r -> b

liftA2 :: (a -> b -> c) -> (r -> a) -> (r -> b) -> r -> c

(*>) :: (r -> a) -> (r -> b) -> r -> b

(<*) :: (r -> a) -> (r -> b) -> r -> a

(Applicative f, Applicative g) => Applicative (Compose f g)

Since: base-4.9.0.0

Defined in Data.Functor.Compose

Methods

pure :: a -> Compose f g a

(<*>) :: Compose f g (a -> b) -> Compose f g a -> Compose f g b

liftA2 :: (a -> b -> c) -> Compose f g a -> Compose f g b -> Compose f g c

(*>) :: Compose f g a -> Compose f g b -> Compose f g b

(<*) :: Compose f g a -> Compose f g b -> Compose f g a

(Monad f, Applicative f) => Applicative (WhenMatched f k x y)

Equivalent to ReaderT k (ReaderT x (ReaderT y (MaybeT f)))

Since: containers-0.5.9

Defined in Data.Map.Internal

Methods

pure :: a -> WhenMatched f k x y a

(<*>) :: WhenMatched f k x y (a -> b) -> WhenMatched f k x y a -> WhenMatched f k x y b

liftA2 :: (a -> b -> c) -> WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y c

(*>) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y b

(<*) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y a

(Applicative f, Applicative g) => Applicative (f :.: g)

Defined in GHC.Internal.Generics

Methods

pure :: a -> (f :.: g) a

(<*>) :: (f :.: g) (a -> b) -> (f :.: g) a -> (f :.: g) b

liftA2 :: (a -> b -> c) -> (f :.: g) a -> (f :.: g) b -> (f :.: g) c

(*>) :: (f :.: g) a -> (f :.: g) b -> (f :.: g) b

(<*) :: (f :.: g) a -> (f :.: g) b -> (f :.: g) a

Applicative f => Applicative (M1 i c f)

Defined in GHC.Internal.Generics

Methods

pure :: a -> M1 i c f a

(<*>) :: M1 i c f (a -> b) -> M1 i c f a -> M1 i c f b

liftA2 :: (a -> b -> c0) -> M1 i c f a -> M1 i c f b -> M1 i c f c0

(*>) :: M1 i c f a -> M1 i c f b -> M1 i c f b

(<*) :: M1 i c f a -> M1 i c f b -> M1 i c f a

(Functor m, Monad m) => Applicative (RWST r w s m)

Defined in Control.Monad.Trans.RWS.CPS

Methods

pure :: a -> RWST r w s m a

(<*>) :: RWST r w s m (a -> b) -> RWST r w s m a -> RWST r w s m b

liftA2 :: (a -> b -> c) -> RWST r w s m a -> RWST r w s m b -> RWST r w s m c

(*>) :: RWST r w s m a -> RWST r w s m b -> RWST r w s m b

(<*) :: RWST r w s m a -> RWST r w s m b -> RWST r w s m a

(Monoid w, Functor m, Monad m) => Applicative (RWST r w s m)

Defined in Control.Monad.Trans.RWS.Lazy

Methods

pure :: a -> RWST r w s m a

(<*>) :: RWST r w s m (a -> b) -> RWST r w s m a -> RWST r w s m b

liftA2 :: (a -> b -> c) -> RWST r w s m a -> RWST r w s m b -> RWST r w s m c

(*>) :: RWST r w s m a -> RWST r w s m b -> RWST r w s m b

(<*) :: RWST r w s m a -> RWST r w s m b -> RWST r w s m a

(Monoid w, Functor m, Monad m) => Applicative (RWST r w s m)

Defined in Control.Monad.Trans.RWS.Strict

Methods

pure :: a -> RWST r w s m a

(<*>) :: RWST r w s m (a -> b) -> RWST r w s m a -> RWST r w s m b

liftA2 :: (a -> b -> c) -> RWST r w s m a -> RWST r w s m b -> RWST r w s m c

(*>) :: RWST r w s m a -> RWST r w s m b -> RWST r w s m b

(<*) :: RWST r w s m a -> RWST r w s m b -> RWST r w s m a

(<$>) :: Functor f => (a -> b) -> f a -> f b

class Monad m => MonadFix (m :: Type -> Type) where

Methods

mfix :: (a -> m a) -> m a

Instances

MonadFix Complex

Since: base-4.15.0.0

Defined in Data.Complex

Methods

mfix :: (a -> Complex a) -> Complex a

MonadFix First

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

mfix :: (a -> First a) -> First a

MonadFix Last

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

mfix :: (a -> Last a) -> Last a

MonadFix Max

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

mfix :: (a -> Max a) -> Max a

MonadFix Min

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

mfix :: (a -> Min a) -> Min a

MonadFix Seq

Since: containers-0.5.11

Defined in Data.Sequence.Internal

Methods

mfix :: (a -> Seq a) -> Seq a

MonadFix Tree

Since: containers-0.5.11

Defined in Data.Tree

Methods

mfix :: (a -> Tree a) -> Tree a

MonadFix Ghc

Defined in GHC.Driver.Monad

Methods

mfix :: (a -> Ghc a) -> Ghc a

MonadFix TcS

Defined in GHC.Tc.Solver.Monad

Methods

mfix :: (a -> TcS a) -> TcS a

MonadFix UniqSM

Defined in GHC.Types.Unique.Supply

Methods

mfix :: (a -> UniqSM a) -> UniqSM a

MonadFix NonEmpty

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> NonEmpty a) -> NonEmpty a

MonadFix Identity

Defined in GHC.Internal.Data.Functor.Identity

Methods

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

MonadFix First

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> First a) -> First a

MonadFix Last

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Last a) -> Last a

MonadFix Down

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Down a) -> Down a

MonadFix Dual

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Dual a) -> Dual a

MonadFix Product

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Product a) -> Product a

MonadFix Sum

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Sum a) -> Sum a

MonadFix Par1

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Par1 a) -> Par1 a

MonadFix IO

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> IO a) -> IO a

MonadFix Q

If the function passed to mfix inspects its argument, the resulting action will throw a FixIOException.

Since: template-haskell-2.17.0.0

Defined in Language.Haskell.TH.Syntax

Methods

mfix :: (a -> Q a) -> Q a

MonadFix Maybe

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Maybe a) -> Maybe a

MonadFix Solo

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Solo a) -> Solo a

MonadFix []

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> [a]) -> [a]

MonadFix m => MonadFix (CatchT m)

Defined in Control.Monad.Catch.Pure

Methods

mfix :: (a -> CatchT m a) -> CatchT m a

MonadFix (IOEnv env)

Defined in GHC.Data.IOEnv

Methods

mfix :: (a -> IOEnv env a) -> IOEnv env a

MonadFix m => MonadFix (GhcT m)

Defined in GHC.Driver.Monad

Methods

mfix :: (a -> GhcT m a) -> GhcT m a

MonadIO m => MonadFix (ZonkBndrT m)

Defined in GHC.Tc.Zonk.Env

Methods

mfix :: (a -> ZonkBndrT m a) -> ZonkBndrT m a

MonadFix m => MonadFix (ZonkT m)

Defined in GHC.Tc.Zonk.Env

Methods

mfix :: (a -> ZonkT m a) -> ZonkT m a

MonadIO m => MonadFix (Codensity m)

Defined in GHC.Utils.Monad.Codensity

Methods

mfix :: (a -> Codensity m a) -> Codensity m a

MonadFix (Either e)

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Either e a) -> Either e a

MonadFix (ST s)

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> ST s a) -> ST s a

MonadFix m => MonadFix (MaybeT m)

Defined in Control.Monad.Trans.Maybe

Methods

mfix :: (a -> MaybeT m a) -> MaybeT m a

MonadFix f => MonadFix (Ap f)

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Ap f a) -> Ap f a

MonadFix f => MonadFix (Alt f)

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Alt f a) -> Alt f a

MonadFix f => MonadFix (Rec1 f)

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> Rec1 f a) -> Rec1 f a

(Monoid w, Functor m, MonadFix m) => MonadFix (AccumT w m)

Defined in Control.Monad.Trans.Accum

Methods

mfix :: (a -> AccumT w m a) -> AccumT w m a

MonadFix m => MonadFix (ExceptT e m)

Defined in Control.Monad.Trans.Except

Methods

mfix :: (a -> ExceptT e m a) -> ExceptT e m a

MonadFix m => MonadFix (IdentityT m)

Defined in Control.Monad.Trans.Identity

Methods

mfix :: (a -> IdentityT m a) -> IdentityT m a

MonadFix m => MonadFix (ReaderT r m)

Defined in Control.Monad.Trans.Reader

Methods

mfix :: (a -> ReaderT r m a) -> ReaderT r m a

MonadFix m => MonadFix (StateT s m)

Defined in Control.Monad.Trans.State.Lazy

Methods

mfix :: (a -> StateT s m a) -> StateT s m a

MonadFix m => MonadFix (StateT s m)

Defined in Control.Monad.Trans.State.Strict

Methods

mfix :: (a -> StateT s m a) -> StateT s m a

MonadFix m => MonadFix (WriterT w m)

Defined in Control.Monad.Trans.Writer.CPS

Methods

mfix :: (a -> WriterT w m a) -> WriterT w m a

(Monoid w, MonadFix m) => MonadFix (WriterT w m)

Defined in Control.Monad.Trans.Writer.Lazy

Methods

mfix :: (a -> WriterT w m a) -> WriterT w m a

(Monoid w, MonadFix m) => MonadFix (WriterT w m)

Defined in Control.Monad.Trans.Writer.Strict

Methods

mfix :: (a -> WriterT w m a) -> WriterT w m a

(MonadFix f, MonadFix g) => MonadFix (Product f g)

Since: base-4.9.0.0

Defined in Data.Functor.Product

Methods

mfix :: (a -> Product f g a) -> Product f g a

(MonadFix f, MonadFix g) => MonadFix (f :*: g)

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> (f :*: g) a) -> (f :*: g) a

MonadFix ((->) r)

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> r -> a) -> r -> a

MonadFix f => MonadFix (M1 i c f)

Defined in GHC.Internal.Control.Monad.Fix

Methods

mfix :: (a -> M1 i c f a) -> M1 i c f a

MonadFix m => MonadFix (RWST r w s m)

Defined in Control.Monad.Trans.RWS.CPS

Methods

mfix :: (a -> RWST r w s m a) -> RWST r w s m a

(Monoid w, MonadFix m) => MonadFix (RWST r w s m)

Defined in Control.Monad.Trans.RWS.Lazy

Methods

mfix :: (a -> RWST r w s m a) -> RWST r w s m a

(Monoid w, MonadFix m) => MonadFix (RWST r w s m)

Defined in Control.Monad.Trans.RWS.Strict

Methods

mfix :: (a -> RWST r w s m a) -> RWST r w s m a

class Monad m => MonadIO (m :: Type -> Type) 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:

• liftIO . return = return

• liftIO (m >>= f) = liftIO m >>= (liftIO . f)

Methods

liftIO :: IO a -> m a

Lift a computation from the IO monad. This allows us to run IO computations in any monadic stack, so long as it supports these kinds of operations (i.e. IO is the base monad for the stack).

Example

import Control.Monad.Trans.State -- from the "transformers" library

printState :: Show s => StateT s IO ()
printState = do
  state <- get
  liftIO $ print state

Had we omitted liftIO, we would have ended up with this error:

• Couldn't match type ‘IO’ with ‘StateT s IO’
 Expected type: StateT s IO ()
   Actual type: IO ()

The important part here is the mismatch between StateT s IO () and IO ().

Luckily, we know of a function that takes an IO a and returns an (m a): liftIO, enabling us to run the program and see the expected results:

> evalStateT printState "hello"
"hello"

> evalStateT printState 3
3

Instances

MonadIO CoreM

Defined in GHC.Core.Opt.Monad

Methods

liftIO :: IO a -> CoreM a

MonadIO SimplM

Defined in GHC.Core.Opt.Simplify.Monad

Methods

liftIO :: IO a -> SimplM a

MonadIO Hsc

Defined in GHC.Driver.Env.Types

Methods

liftIO :: IO a -> Hsc a

MonadIO Ghc

Defined in GHC.Driver.Monad

Methods

liftIO :: IO a -> Ghc a

MonadIO HookedUse

Defined in GHC.Driver.Pipeline.Execute

Methods

liftIO :: IO a -> HookedUse a

MonadIO TcS

Defined in GHC.Tc.Solver.Monad

Methods

liftIO :: IO a -> TcS a

MonadIO ZonkM

Defined in GHC.Tc.Zonk.Monad

Methods

liftIO :: IO a -> ZonkM a

MonadIO IO

Since: base-4.9.0.0

Defined in Control.Monad.IO.Class

Methods

liftIO :: IO a -> IO a

MonadIO GHCiQ

Defined in GHCi.TH

Methods

liftIO :: IO a -> GHCiQ a

MonadIO Q

Defined in Language.Haskell.TH.Syntax

Methods

liftIO :: IO a -> Q a

MonadIO m => MonadIO (CatchT m)

Defined in Control.Monad.Catch.Pure

Methods

liftIO :: IO a -> CatchT m a

MonadIO (IOEnv env)

Defined in GHC.Data.IOEnv

Methods

liftIO :: IO a -> IOEnv env a

MonadIO m => MonadIO (EwM m)

Defined in GHC.Driver.CmdLine

Methods

liftIO :: IO a -> EwM m a

MonadIO m => MonadIO (GhcT m)

Defined in GHC.Driver.Monad

Methods

liftIO :: IO a -> GhcT m a

MonadIO m => MonadIO (ZonkBndrT m)

Defined in GHC.Tc.Zonk.Env

Methods

liftIO :: IO a -> ZonkBndrT m a

MonadIO m => MonadIO (ZonkT m)

Defined in GHC.Tc.Zonk.Env

Methods

liftIO :: IO a -> ZonkT m a

MonadIO m => MonadIO (Codensity m)

Defined in GHC.Utils.Monad.Codensity

Methods

liftIO :: IO a -> Codensity m a

MonadIO m => MonadIO (MaybeT m)

Defined in Control.Monad.Trans.Maybe

Methods

liftIO :: IO a -> MaybeT m a

MonadIO m => MonadIO (Stream m b)

Defined in GHC.Data.Stream

Methods

liftIO :: IO a -> Stream m b a

(Monoid w, Functor m, MonadIO m) => MonadIO (AccumT w m)

Defined in Control.Monad.Trans.Accum

Methods

liftIO :: IO a -> AccumT w m a

MonadIO m => MonadIO (ExceptT e m)

Defined in Control.Monad.Trans.Except

Methods

liftIO :: IO a -> ExceptT e m a

MonadIO m => MonadIO (IdentityT m)

Defined in Control.Monad.Trans.Identity

Methods

liftIO :: IO a -> IdentityT m a

MonadIO m => MonadIO (ReaderT r m)

Defined in Control.Monad.Trans.Reader

Methods

liftIO :: IO a -> ReaderT r m a

MonadIO m => MonadIO (SelectT r m)

Defined in Control.Monad.Trans.Select

Methods

liftIO :: IO a -> SelectT r m a

MonadIO m => MonadIO (StateT s m)

Defined in Control.Monad.Trans.State.Lazy

Methods

liftIO :: IO a -> StateT s m a

MonadIO m => MonadIO (StateT s m)

Defined in Control.Monad.Trans.State.Strict

Methods

liftIO :: IO a -> StateT s m a

MonadIO m => MonadIO (WriterT w m)

Defined in Control.Monad.Trans.Writer.CPS

Methods

liftIO :: IO a -> WriterT w m a

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

Defined in Control.Monad.Trans.Writer.Lazy

Methods

liftIO :: IO a -> WriterT w m a

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

Defined in Control.Monad.Trans.Writer.Strict

Methods

liftIO :: IO a -> WriterT w m a

MonadIO m => MonadIO (ContT r m)

Defined in Control.Monad.Trans.Cont

Methods

liftIO :: IO a -> ContT r m a

MonadIO m => MonadIO (RWST r w s m)

Defined in Control.Monad.Trans.RWS.CPS

Methods

liftIO :: IO a -> RWST r w s m a

(Monoid w, MonadIO m) => MonadIO (RWST r w s m)

Defined in Control.Monad.Trans.RWS.Lazy

Methods

liftIO :: IO a -> RWST r w s m a

(Monoid w, MonadIO m) => MonadIO (RWST r w s m)

Defined in Control.Monad.Trans.RWS.Strict

Methods

liftIO :: IO a -> RWST r w s m a

zipWith3M :: Monad m => (a -> b -> c -> m d) -> [a] -> [b] -> [c] -> m [d]

zipWith3M_ :: Monad m => (a -> b -> c -> m d) -> [a] -> [b] -> [c] -> m ()

zipWith4M :: Monad m => (a -> b -> c -> d -> m e) -> [a] -> [b] -> [c] -> [d] -> m [e]

zipWithAndUnzipM :: Monad m => (a -> b -> m (c, d)) -> [a] -> [b] -> m ([c], [d])

zipWith3MNE :: Monad m => (a -> b -> c -> m d) -> NonEmpty a -> NonEmpty b -> NonEmpty c -> m (NonEmpty d)

zipWith3M for NonEmpty lists.

mapAndUnzipM :: Applicative m => (a -> m (b, c)) -> [a] -> m ([b], [c])

mapAndUnzip3M :: Monad m => (a -> m (b, c, d)) -> [a] -> m ([b], [c], [d])

mapAndUnzipM for triples

mapAndUnzip4M :: Monad m => (a -> m (b, c, d, e)) -> [a] -> m ([b], [c], [d], [e])

mapAndUnzip5M :: Monad m => (a -> m (b, c, d, e, f)) -> [a] -> m ([b], [c], [d], [e], [f])

mapAccumLM

Arguments

:: (Monad m, Traversable t)

=> (acc -> x -> m (acc, y))

combining function

-> acc

initial state

-> t x

inputs

-> m (acc, t y)

final state, outputs

Monadic version of mapAccumL

mapSndM :: (Applicative m, Traversable f) => (b -> m c) -> f (a, b) -> m (f (a, c))

Monadic version of mapSnd

concatMapM :: (Monad m, Traversable f) => (a -> m [b]) -> f a -> m [b]

Monadic version of concatMap

mapMaybeM :: Applicative m => (a -> m (Maybe b)) -> [a] -> m [b]

Applicative version of mapMaybe

anyM :: (Monad m, Foldable f) => (a -> m Bool) -> f a -> m Bool

Monadic version of any, aborts the computation at the first True value

allM :: (Monad m, Foldable f) => (a -> m Bool) -> f a -> m Bool

Monad version of all, aborts the computation at the first False value

orM :: Monad m => m Bool -> m Bool -> m Bool

Monadic version of or

foldlM :: (Foldable t, Monad m) => (b -> a -> m b) -> b -> t a -> m b

foldlM_ :: (Monad m, Foldable t) => (a -> b -> m a) -> a -> t b -> m ()

Monadic version of foldl that discards its result

foldrM :: (Foldable t, Monad m) => (a -> b -> m b) -> b -> t a -> m b

whenM :: Monad m => m Bool -> m () -> m ()

Monadic version of when, taking the condition in the monad

unlessM :: Monad m => m Bool -> m () -> m ()

Monadic version of unless, taking the condition in the monad

filterOutM :: Applicative m => (a -> m Bool) -> [a] -> m [a]

Like filterM, only it reverses the sense of the test.

partitionM :: Monad m => (a -> m Bool) -> [a] -> m ([a], [a])

Monadic version of partition