Xavier Leroy wrote:
>> Probably an optimal solution would
>> be to allow anonymous types in any context.
>
>You can kiss type inference goodbye, then.
>
>Don Syme wrote:
>
>> BTW, the type language of Mercury (and probably some other FP languages?)
>> allows variants and records pretty much anywhere in a type structure. 
>
>What kind of type inference do they have?

The undecidable kind. :/

--FC