Re: transformers versus mtl

On Sun, 15 Mar 2009, Sittampalam, Ganesh wrote:

Hi,

What are the relative status of transformers and mtl? Are we trying to deprecate mtl use in favour of transformers (+ appropriate dependencies like monads-fd)?

I have actually done this step in all of my packages.

I see that the initial version of the Haskell Platform is planning to use mtl because of its status in extralibs - but if transformers is the way forward, then perhaps this should be changed?

I prefer transformers + monad-fd + monad-tf or whatever as the standard implementation over mtl.