Re: [Haskell-cafe] HList and Type signatures / synonyms

Excerpts from Günther Schmidt's message of Sun Sep 06 19:40:05 -0400 2009:

I keep accumulating values and right now use plain tuples for that. I end up with a 12 element tuple and things are a bit messy.

Hi, you may want to consider using the Writer monad. [1]

I'd like to use extensible Records from HList instead, thing is I'd like to keep putting type signatures in my code. As it turns out that seems to be where it gets messy with HList.

Perhaps more precisely explaining your problem domain would be useful. Cheers, Edward [1] http://www.haskell.org/all_about_monads/html/writermonad.html