Hi all,
On a project I'm working on, I wish to declare something like
data Rec = MkRec { field :: forall a. SomeConstraint a => ... }
where the ... contains no mention of `a`.
Even with https://github.com/ghc-proposals/ghc-proposals/pull/448
<https://github.com/ghc-proposals/ghc-proposals/pull/448>, I think there is no
way to avoid the ambiguity when setting `field`. Is that correct? If so, what
shall we do about it? The natural answer is somehow to write ... MkRec { field
@a = ... } ... but that would break significant new syntactic ground. (Maybe
it's good new syntactic ground, but it would still be very new.)
Thanks,
Richard_______________________________________________
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