On Mon, Dec 28, 2009 at 12:44:31PM +0100, Konrad Hinsen wrote: >> This fact is realized even in haskell community: >> http://lambda-the-ultimate.org/node/2749#comment-41078 > >That article is about monad transformers, not monads themselves. BTW, >monad transformers are simpler in Clojure than they are in Haskell >(they are ordinary functions), so some arguments in that thread don't >apply to the same degree.
Well, they still end up mostly as just functions in Haskell, with lots of extra wrapping and unwrapping to get the type system to work. The advantage in Haskell, is that 'lift' and friends (liftIO) figure out at compile time how many invocations are needed to get to the right monad. My biggest complaint about the monad transformers was that they make the program design fragile. Having to make small changes to what monads were used tended to have a pervasive effect on the rest of the code. Much of this had to do with type declarations, so this might not be as much of an issue with Clojure. David -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
