On 12 September 2012 18:24, Sergey Mironov <ier...@gmail.com> wrote: > Hi. Just a brief question. System.IO functions are defined in IO monad > and have signatures like Foo -> IO Bar. > Would it be better to have all of them defined as (MonadIO m) => Foo > -> m Bar? What are the problems that would arise?
That would require MonadIO being defined in base, and might make some existing code fail due to lack of type signatures (though I suppose you could specify a default). -- Ivan Lazar Miljenovic ivan.miljeno...@gmail.com http://IvanMiljenovic.wordpress.com _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
