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Within LTS Haskell 24.51 (ghc-9.10.3)

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  1. maybeToM :: MonadFail m => String -> Maybe a -> m a

    monadology Control.Monad.Ology.Specific.Result

    No documentation available.

  2. maybeCabal :: MonadIO io => Directory -> io (Maybe BuildTool)

    nvim-hs-contrib Neovim.BuildTool

    Check if the directory contains a cabal file and return Just (Cabal Plain) if present.

  3. maybeCabalSandbox :: MonadIO io => Directory -> io (Maybe BuildTool)

    nvim-hs-contrib Neovim.BuildTool

    Check if the directory contains a cabal.sandbox.config file and return Just (Cabal Sandbox) in that case.

  4. maybeStack :: MonadIO io => Directory -> io (Maybe BuildTool)

    nvim-hs-contrib Neovim.BuildTool

    Check if directory contains a stack.yaml file and return Just Stack in this case.

  5. maybePluginConfig :: MonadIO io => Directory -> io (Maybe BuildTool)

    nvim-hs-ghcid Neovim.Ghcid.Plugin

    No documentation available.

  6. maybeToNullable :: Maybe (Field a) -> FieldNullable a

    opaleye Opaleye.Field

    If the argument is Nothing return NULL otherwise return the provided value coerced to a nullable type.

  7. maybeFields :: Default IfPP b b => b -> (a -> b) -> MaybeFields a -> b

    opaleye Opaleye.Internal.MaybeFields

    The Opaleye analogue of maybe

  8. maybeFieldsExplicit :: IfPP b b' -> b -> (a -> b) -> MaybeFields a -> b'

    opaleye Opaleye.Internal.MaybeFields

    No documentation available.

  9. maybeFieldsToNullable :: MaybeFields (Field a) -> FieldNullable a

    opaleye Opaleye.Internal.MaybeFields

    Convert nothingFields to NULL to a justFields to non-NULL

  10. maybeFieldsToSelect :: SelectArr (MaybeFields a) a

    opaleye Opaleye.Internal.MaybeFields

    The Opaleye analogue of maybeToList. Unless you are using arrow notation you'll probably find catMaybeFields easier to use.

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