[Haskell-cafe] Removing mtl from the Haskell Platform

Henning Thielemann lemming at henning-thielemann.de
Wed May 13 15:43:51 EDT 2009

Sittampalam, Ganesh wrote:
> roconnor at theorem.ca wrote:
>> I think that use of the mtl should be deprecated so that we move on
>> to improved monad transformer libraries.  Having the mtl in the
>> Haskell Platform does the opposite by further entrenching its use,
>> possibly to the point where we may not be able to get rid of it for
>> years. 
>> If I had to recommend a replace library, I would pick monadLib. However, 
>> there are other libraries, such as the mmtl and transformers
>> and it's related packages that I haven't looked at, and may also make
>> fine replacements for the mtl. 
> We've discussed replacing it with transformers+monads-fd+an mtl
> compatiblity layer on libraries at . Ross and I plan to propose doing this
> for the second release of the platform -

I vote for that route!

> it's not fair to disrupt the first release at this stage.

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