Hedgehog.Internal.Exception

Documentation

newtype TypedException

Newtype for SomeException with a Show instance that only contains valid Haskell 98 tokens and also includes the type of the exception.

For example, when catching the exception thrown by fail "foo" :: IO () and calling show:

  IOException "user error (foo)"

Having access to the type can be useful when trying to track down the source of an exception.

Constructors

TypedException SomeException

Instances

Show TypedException

Methods

showsPrec :: Int -> TypedException -> ShowS

show :: TypedException -> String

showList :: [TypedException] -> ShowS

tryAll :: MonadCatch m => m a -> m (Either TypedException a)