Correction: the correct link is http://www.haskell.org/haskellwiki/Failure
2009/11/16 Michael Snoyman <mich...@snoyman.com>: > Folks, > > We are extremely happy to announce the control-monad-failure and > safe-failure packages for error handling. > > control-monad-failure provides a basic notion of failure which does not > commit to any concrete representation. > It is just a version of the MonadError class without the annoying bits. > >> class MonadFailure e m where failure :: e -> m a > > Instances are provided for several concrete representations of failure > handling: Maybe, Either, ErrorT, Control.Exception.Throw, and []. > > safe-failure is a fork of Neil Mitchell's Safe package providing > MonadFailure versions of several partial functions > in the Prelude, which instead of failing with a runtime error fail with > Failure. > >> head :: MonadFailure HeadFailure m => [a] -> m a > > This is a joint release from the authors of the attempt and the > control-monad-exception packages, > and accompanying releases of those packages have been made making them adopt > the MonadFailure interface. > We have also created a wiki page explaining our reasons for following this > path in: > > http://www.haskellwiki.org/Failure > > > Thanks, > Jose Iborra, Nicolas Pouillard and Michael Snoyman > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > > -- Eugene Kirpichov Web IR developer, market.yandex.ru _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
