{-# LANGUAGE CPP #-}
-- GIMP Toolkit (GTK) Binding for Haskell: binding to libgnomevfs -*-haskell-*-
--
-- Author : Peter Gavin
-- Created: 1-Apr-2007
--
-- Copyright (c) 2007 Peter Gavin
--
-- This library is free software: you can redistribute it and/or
-- modify it under the terms of the GNU Lesser General Public License
-- as published by the Free Software Foundation, either version 3 of
-- the License, or (at your option) any later version.
--
-- This library is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-- Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public
-- License along with this program. If not, see
-- .
--
-- GnomeVFS, the C library which this Haskell library depends on, is
-- available under LGPL Version 2. The documentation included with
-- this library is based on the original GnomeVFS documentation,
-- Copyright (c) 2001 Seth Nickell . The
-- documentation is covered by the GNU Free Documentation License,
-- version 1.2.
--
-- | Maintainer : gtk2hs-devel@lists.sourceforge.net
-- Stability : alpha
-- Portability : portable (depends on GHC)
module System.Gnome.VFS.Error (
Error(..),
error,
errors,
eofErrors,
) where
import Control.Monad (join)
#ifdef HAVE_NEW_CONTROL_EXCEPTION
import qualified Control.OldException as E
#else
import qualified Control.Exception as E
#endif
import Data.Dynamic
-- import System.Gnome.VFS.Types
import System.Gnome.VFS.BasicTypes
import Prelude hiding (error)
error :: Result
-> IO a
error = E.throwDyn . Error
errors :: E.Exception
-> Maybe Error
errors =
join . (fmap fromDynamic) . E.dynExceptions
eofErrors :: E.Exception
-> Maybe Error
eofErrors exception =
let vfsError = errors exception in
case vfsError of
Just (Error ErrorEof) -> vfsError
_ -> Nothing