Records in Haskell

Greg Weber greg at gregweber.info
Fri Feb 24 23:21:20 CET 2012


>
> No, I don't think anybody has a satisfactory approach to
> updating polymorphic/higher-ranked fields. (DORF mentions
> one, but it's a ghastly hack.

So are the proposals dead until this is tackled, or should SORF/DORF
propose not to allow that?

>
> What on earth do you mean by "not automatically abstract
> over fields"?

Abstraction over fields is the ability to write a function that works
on two records with the same field label.



More information about the Glasgow-haskell-users mailing list