25 Apr
2014
25 Apr
'14
5:06 p.m.
On 2014-04-25 at 18:02:33 +0200, Dan Doel wrote:
The previous discussion about methods on Either had some mention of adding bifunctors to base, but no one wrote up the details. So I've taken it upon myself to do so.
The following proposal is to add some modules of the bifunctors [1] package to base, namely:
Data.Bifunctor Data.Bifoldable Data.Bitraversable
These modules contain classes and functions for working with types similar to those identified by Functor, Foldable and Traversable, except that there are parameterized by two 'element types' so to speak.
[...] +1 !