-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | Composable error messages.
--   
--   This philosophy behind this package is that it is often better to find
--   out all of the errors that have occured in a computation and report
--   them simultaneously, rather than aborting as soon as the first error
--   is encountered. Towards this end, this module supplies a type of
--   <i>combinable error messages</i> so that all of the errors from
--   subcomputations can be gathered and presented together.
--   
--   New in version 1.1: Removed Monoid instance for Doc (it should now be
--   supplied by ansi-wl-pprint), added ErrorMessageOr type alias.
@package error-message
@version 1.1

module Data.ErrorMessage
newtype ErrorMessage
ErrorMessage :: Map String Doc -> ErrorMessage
unwrapErrorMessage :: ErrorMessage -> Map String Doc
type ErrorMessageOr = Either ErrorMessage
errorMessage :: String -> Doc -> ErrorMessage
errorMessageText :: String -> String -> ErrorMessage
errorMessageTextFromMultilineString :: String -> String -> ErrorMessage
leftErrorMessage :: String -> Doc -> Either ErrorMessage a
leftErrorMessageText :: String -> String -> Either ErrorMessage a
leftErrorMessageTextFromMultilineString :: String -> String -> Either ErrorMessage a
formatErrorMessage :: ErrorMessage -> Doc
formatMessageWithHeading :: String -> Doc -> Doc
gatherResultsOrErrors :: [Either e a] -> Either [e] [a]
gatherResultsOrError :: (Monoid e) => [Either e a] -> Either e [a]
instance Error Doc
instance Monoid ErrorMessage
instance Error ErrorMessage
instance (Monoid e, Error e, Monad m) => Applicative (ErrorT e m)
instance (Monoid e) => Applicative (Either e)