Data.Exceptable

Provides Exceptable for error types which can be projected into the Haskell exception hierarchy.

Documentation

class Exceptable e where

Types which can be projected into the Haskell exception hierarchy

Methods

toSomeException :: e -> SomeException

Instances

Exceptable Void

Defined in Data.Exceptable

Methods

toSomeException :: Void -> SomeException

Exceptable SomeException

Defined in Data.Exceptable

Methods

toSomeException :: SomeException -> SomeException

(Show e, Typeable e) => Exceptable (EitherException e)

Defined in Data.Exceptable

Methods

toSomeException :: EitherException e -> SomeException

Exceptable e => Exceptable (Maybe e)

Defined in Data.Exceptable

Methods

toSomeException :: Maybe e -> SomeException

(Show e, Typeable e, Exceptable e') => Exceptable (Either e e')

Defined in Data.Exceptable

Methods

toSomeException :: Either e e' -> SomeException

Exceptable e => Exceptable (e, s)

Defined in Data.Exceptable

Methods

toSomeException :: (e, s) -> SomeException

Exceptable e => Exceptable (e, s, w)

Defined in Data.Exceptable

Methods

toSomeException :: (e, s, w) -> SomeException

newtype EitherException e

An Exception representing a failure in the Either monad.

Constructors

EitherException e

Instances

(Show e, Typeable e) => Exception (EitherException e)

Defined in Data.Exceptable

Methods

toException :: EitherException e -> SomeException

fromException :: SomeException -> Maybe (EitherException e)

displayException :: EitherException e -> String

Show e => Show (EitherException e)

Defined in Data.Exceptable

Methods

showsPrec :: Int -> EitherException e -> ShowS

show :: EitherException e -> String

showList :: [EitherException e] -> ShowS

(Show e, Typeable e) => Exceptable (EitherException e)

Defined in Data.Exceptable

Methods

toSomeException :: EitherException e -> SomeException

data NothingException

An Exception representing the Nothing case in a Maybe monad.

Constructors

NothingException

Instances

Exception NothingException

Defined in Data.Exceptable

Methods

toException :: NothingException -> SomeException

fromException :: SomeException -> Maybe NothingException

displayException :: NothingException -> String

Show NothingException

Defined in Data.Exceptable

Methods

showsPrec :: Int -> NothingException -> ShowS

show :: NothingException -> String

showList :: [NothingException] -> ShowS