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System.IO.Error Portability portable Stability provisional Maintainer libraries@haskell.org

Description

Standard IO Errors.

Synopsis

type IOError = IOException data IOErrorType catch :: IO a -> (IOError -> IO a) -> IO a try :: IO a -> IO (Either IOError a) ioError :: IOError -> IO a userError :: String -> IOError mkIOError :: IOErrorType -> String -> Maybe Handle -> Maybe FilePath -> IOError annotateIOError :: IOError -> String -> Maybe Handle -> Maybe FilePath -> IOError modifyIOError :: (IOError -> IOError) -> IO a -> IO a alreadyExistsErrorType :: IOErrorType doesNotExistErrorType :: IOErrorType alreadyInUseErrorType :: IOErrorType fullErrorType :: IOErrorType eofErrorType :: IOErrorType illegalOperationErrorType :: IOErrorType permissionErrorType :: IOErrorType userErrorType :: IOErrorType isAlreadyExistsErrorType :: IOErrorType -> Bool isDoesNotExistErrorType :: IOErrorType -> Bool isAlreadyInUseErrorType :: IOErrorType -> Bool isFullErrorType :: IOErrorType -> Bool isEOFErrorType :: IOErrorType -> Bool isIllegalOperationErrorType :: IOErrorType -> Bool isPermissionErrorType :: IOErrorType -> Bool isUserErrorType :: IOErrorType -> Bool isAlreadyExistsError :: IOError -> Bool isDoesNotExistError :: IOError -> Bool isAlreadyInUseError :: IOError -> Bool isFullError :: IOError -> Bool isEOFError :: IOError -> Bool isIllegalOperation :: IOError -> Bool isPermissionError :: IOError -> Bool isUserError :: IOError -> Bool ioeGetErrorType :: IOError -> IOErrorType ioeGetErrorString :: IOError -> String ioeGetHandle :: IOError -> Maybe Handle ioeGetFileName :: IOError -> Maybe FilePath ioeSetErrorType :: IOError -> IOErrorType -> IOError ioeSetErrorString :: IOError -> String -> IOError ioeSetHandle :: IOError -> Handle -> IOError ioeSetFileName :: IOError -> FilePath -> IOError

Documentation

type IOError = IOException

The Haskell 98 type for exceptions in the IO monad. In Haskell 98, this is an opaque type.

data IOErrorType

Instances Eq IOErrorType Show IOErrorType

catch :: IO a -> (IOError -> IO a) -> IO a

try :: IO a -> IO (Either IOError a)

The construct try comp exposes IO errors which occur within a computation, and which are not fully handled. Other exceptions are not caught by this variant; to catch all exceptions, use try from Control.Exception.

ioError :: IOError -> IO a

userError :: String -> IOError

mkIOError :: IOErrorType -> String -> Maybe Handle -> Maybe FilePath -> IOError

annotateIOError :: IOError -> String -> Maybe Handle -> Maybe FilePath -> IOError

modifyIOError :: (IOError -> IOError) -> IO a -> IO a

alreadyExistsErrorType :: IOErrorType

doesNotExistErrorType :: IOErrorType

alreadyInUseErrorType :: IOErrorType

fullErrorType :: IOErrorType

eofErrorType :: IOErrorType

illegalOperationErrorType :: IOErrorType

permissionErrorType :: IOErrorType

userErrorType :: IOErrorType

isAlreadyExistsErrorType :: IOErrorType -> Bool

isDoesNotExistErrorType :: IOErrorType -> Bool

isAlreadyInUseErrorType :: IOErrorType -> Bool

isFullErrorType :: IOErrorType -> Bool

isEOFErrorType :: IOErrorType -> Bool

isIllegalOperationErrorType :: IOErrorType -> Bool

isPermissionErrorType :: IOErrorType -> Bool

isUserErrorType :: IOErrorType -> Bool

isAlreadyExistsError :: IOError -> Bool

isDoesNotExistError :: IOError -> Bool

isAlreadyInUseError :: IOError -> Bool

isFullError :: IOError -> Bool

isEOFError :: IOError -> Bool

isIllegalOperation :: IOError -> Bool

isPermissionError :: IOError -> Bool

isUserError :: IOError -> Bool

ioeGetErrorType :: IOError -> IOErrorType

ioeGetErrorString :: IOError -> String

ioeGetHandle :: IOError -> Maybe Handle

ioeGetFileName :: IOError -> Maybe FilePath

ioeSetErrorType :: IOError -> IOErrorType -> IOError

ioeSetErrorString :: IOError -> String -> IOError

ioeSetHandle :: IOError -> Handle -> IOError

ioeSetFileName :: IOError -> FilePath -> IOError

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