PROPOSAL: classes for traversals

Tomasz Zielonka tomasz.zielonka at
Fri Nov 18 08:24:41 EST 2005

On Fri, Nov 18, 2005 at 11:05:37AM +0000, Ross Paterson wrote:
> Conor McBride and I would like to propose some new classes for traversals
> of containers, based around applicative functors (the abstraction formerly
> known as idioms):
> They are proposed for the base package, and would replace FunctorM.

This is very nice (and I say this as one of proponents of FunctorM).

If it's in base package, then it's going to be shipped with newer
compilers, like GHC 6.6, right?

Best regards

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