A possible alternative to dot notation for record access
Edward A Kmett
ekmett at gmail.com
Mon Jul 1 15:24:31 CEST 2013
Sure. I'd rather have nothing, but at least unlike the (.) proposals it doesn't break existing code.
That said I don't think we need either.
On Jul 1, 2013, at 2:27 AM, "John Wiegley" <johnw at fpcomplete.com> wrote:
>>>>>> Edward Kmett <ekmett at gmail.com> writes:
>> If you really want to hunt for unused syntax and we wind up needing a (.)
>> analogue then (->) is currently a reserved operator, so opening it up for
>> use at the term level could be made to work, and there is a precedent with
>> c/c++ pointer dereferencing.
> Imagine this possible code:
> foo :: Maybe Foo -> Bar
> foo (fromMaybe def -> x) = \x -> case x of
> Foo x -> x->y->z
> I think it might get a bit ugly to give it a 5th meaning.
> John Wiegley
> FP Complete Haskell tools, training and consulting
> http://fpcomplete.com johnw on #haskell/irc.freenode.net
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