31 Aug
2010
31 Aug
'10
2:38 p.m.
On Tue, Aug 31, 2010 at 2:07 PM, Permjacov Evgeniy
A Control.Arrow in base package introduces an arrow type, and ghc have good support for arrow notation. Many things, avaible in monads, are avaible in arrows as well. There is an arrows package, that introduces some arrow classes : state, reader, writer and so on. However, it does not introduce systematic lifting of arrow classes operations.
Are you referring to the arrows package at
http://hackage.haskell.org/package/arrows? If so, what do you mean
by "systematic lifting", because it does lift operations through the
transformers where possible.
--
Dave Menendez