Re: Alternative Proxy

El 9 mar 2016, a las 17:49, Fumiaki Kinoshita escribió:

This is the only possible definition...so it should exist

Although I have nothing particularly against an Alternative instance for Proxy, I'd like to say I think "this is the only possible definition, so it should exist" is a nonsequitur. If (again, not specifically speaking about "instance Alternative Proxy" here) there is an instance method with no likely practical use, the fact that the compiler yells when you use it is a *feature*. Tom

instance Alternative Proxy where empty = Proxy _ <|> _ Proxy _______________________________________________ Libraries mailing list Libraries@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/libraries