Has anyone formulated a reasonable set of laws for MonadReader? The instances for continuation-based monad transformers contradict any intuition about local and ask.
E.g. for LogicT: > flip runReader 1 $ observeAllT $ local (const 2) ask [1] > flip runReader 1 $ observeAllT $ local (const 2) mzero <|> ask [2] I wonder whether there are any real use cases for such instances (and, consequently, whether they should be removed). Roman _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
