Alternative Proxy

amindfv at amindfv at
Thu Mar 10 00:48:08 UTC 2016

> El 9 mar 2016, a las 17:49, Fumiaki Kinoshita <fumiexcel at> escribió:
> This is the only possible 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*.


> instance Alternative Proxy where
>   empty = Proxy
>   _ <|> _ Proxy
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