On Tue, Mar 23, 2010 at 02:37:54PM +0000, Ross Paterson wrote:
I propose to rename some of the modules in the transformers package so that it no longer conflicts with the mtl package:
Control.Monad.Identity renamed as Data.Functor.Identity Control.Monad.Trans split between Control.Monad.Trans.Class and Control.IO.Trans.Class
Here's a list of the packages that will be broken by this change because they import the renamed modules, depend on transformers with an open constraint and do not depend on monads-fd or monads-tf: attempt-0.0.2 complexity-0.1.3 control-monad-attempt-0.0.1 control-monad-free-0.5 iteratee-parsec-0.0.2 monad-coroutine-0.5 monad-parallel-0.5 monad-stlike-io-0.2.1 MonadCatchIO-transformers-0.1.0.0 safe-failure-0.2 scc-0.5 Many more packages depending on transformers will need to be updated eventually, but they have bounded dependencies.