Hi Rastko, One way of doing that would be to use the mlet macro from the Cats library: http://funcool.github.io/cats/latest/#mlet
Also, there are several if-lets or when-lets out there that allow multiple bindings, I used one from https://github.com/ptaoussanis/encore I use Scala's for most of the time when there are Options in the mix that may or may not hold a value. For binding to generators, Clojures for might be a better fit? https://clojuredocs.org/clojure.core/for Would that help you? Torsten. PS: I'm learning Clojure myself with Scala and Java background. On Thursday, November 26, 2015 at 12:12:01 PM UTC+1, Rastko Soskic wrote: > > Hi, > I am aware of philosophical differences of Scala and Clojure > but functional programming should be a pretty common ground :) > Thus I need help, I am trying to mimic Scala's for comprehension in > Clojure. > > Hopefully someone will be able to aid me with the following (perhaps more > familiar with Scala): > > Scala for comprehension is errr how to say "de-sugared" to series > of map and flatMap calls... thus, it is possible to use plain functions in > for-comprehension > like: > *val *ns: Conv[List[Int]] = *for *{ // Conv is just alias for functions > of type B => (B, A) > x <- int // int is function again of type Conv > y <- int > xs <- ints(x) // this is just sequence of numbers > } *yield *xs.map(_ * y) > > I don't need all the nuts and bolts, just some guideline for achieving > something similar > in Clojure. > > I am not lazy :) I've already eagerly researched a bit and got to this: Scala > for-comprehension to Clojure > <http://stackoverflow.com/questions/25655132/how-to-convert-this-map-flatmap-into-a-for-comprehension-in-clojure> > > But as you can see that is not really about having kind of generator > function which is wrapped into flatMap > call. Perhaps this is not in Clojure's spirit at all, perhaps there is > some Clojure idiom to achieve something similar. > > Any tip, suggestion, critic is welcome and appreciated. > > If someone is wondering how in the world I came up to this, I am doing > some f-p exercises which I've got Scala solution for > however I am not very interested in Scala and I am doing Clojure so I just > need to grasp concepts... > > Thanks in advance... > -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
