Hoogle Search

Within LTS Haskell 24.39 (ghc-9.10.3)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. toMaybe :: Optional a -> Maybe a

   cabal-gild	CabalGild.Unstable.Type.Optional

   Converts an Optional value into a Maybe one.

2. type SourceRepoMaybe = SourceRepositoryPackage Maybe

   cabal-install	Distribution.Client.Types.SourceRepo

   Distilled from SourceRepo

3. readMaybe :: Read a => String -> Maybe a

   cabal-install	Distribution.Client.Utils

   Parse a string using the Read instance. Succeeds if there is exactly one valid result.

   >>> readMaybe "123" :: Maybe Int
   Just 123
   

   >>> readMaybe "hello" :: Maybe Int
   Nothing
   

4. liftMaybe :: (MonadError error m, CoHas option error) => option -> Maybe a -> m a

   can-i-haz	Control.Monad.Except.CoHas

   Lifts a Maybe into any MonadError error. This function injects the passed option if the Maybe is Nothing.

5. mapMaybeVarEnv :: (a -> Maybe b) -> VarEnv a -> VarEnv b

   clash-lib	Clash.Core.VarEnv

   Apply a function to every element in the environment; values for which the function returns Nothing are removed from the environment

6. mapMaybe :: (a -> Maybe b) -> UniqMap a -> UniqMap b

   clash-lib	Clash.Data.UniqMap

   Apply a function to all elements in the map, keeping those where the result is not Nothing.

7. parseMaybeSingle :: (Char -> Bool) -> Text -> Maybe Text

   clash-lib	Clash.Netlist.Id.Common

   No documentation available.

8. isVoidMaybe :: Bool -> Maybe HWType -> Bool

   clash-lib	Clash.Netlist.Util

   No documentation available.

9. deconstructMaybe :: (HasCallStack, Backend backend) => TExpr -> (Text, Text) -> State (BlockState backend) (TExpr, TExpr)

   clash-lib	Clash.Primitives.DSL

   Deconstruct a Maybe into its constructor Bit and contents of its Just field. Note that the contents might be undefined, if the constructor bit is set to Nothing.

10. hoistMaybe :: forall (m :: Type -> Type) b . Applicative m => Maybe b -> MaybeT m b

    clash-lib	Clash.Util

    Convert a Maybe computation to MaybeT.

Page 265 of many | Previous | Next