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

2009-09-08 Thread Justin Bailey
Gunther, I've got a little experience with HList - read below. 2009/9/6 Günther Schmidt gue.schm...@web.de: Hi, 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. I'd like to use extensible Records from HList

[Haskell-cafe] HList and Type signatures / synonyms

2009-09-06 Thread Günther Schmidt
Hi, 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. 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

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

2009-09-06 Thread Edward Z. Yang
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