state monad transformer
Konrad, Here's a shot at implementing a monad transformer for the state monad. Any chance of getting it added to clojure.contrib.monads? (defn state-t [m] (monad [m-result (with-monad m (fn [v] (fn [s] (m-result (list v s) m-bind (with-monad m (fn [stm f] (fn [s] (m-bind (stm s) (fn [[v ss]] ((f v) ss)) m-zero (with-monad m (when (not= ::undefined m-zero) (fn [s] m-zero))) m-plus (with-monad m (when (not= ::undefined m-zero) (fn [& stms] (fn [s] (apply m-plus (map #(% s) stms)) ])) I've also about finished with the first draft of a monad tutorial for Clojure based on clojure.contrib.monads. Jim --~--~-~--~~~---~--~~ 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 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 -~--~~~~--~~--~--~---
Re: state monad transformer
On 16.02.2009, at 23:38, jim wrote: > Here's a shot at implementing a monad transformer for the state > monad. Any chance of getting it added to clojure.contrib.monads? If you are on the list of contributors (those who have signed a contributor agreement), yes, of course! Konrad. --~--~-~--~~~---~--~~ 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 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 -~--~~~~--~~--~--~---
