Be sure to check out Plumatic Schema <https://github.com/plumatic/schema> (previously Prismatic Schema) if you haven't already. There is also a good Clojure Conj video <https://www.youtube.com/watch?v=o_jtwIs2Ot8> from 2013. Alan
On Sat, Oct 15, 2016 at 3:14 PM, Didier <didi...@gmail.com> wrote: > I know a lot of people like to say how unhelpful Java like static typing > is, and only more powerful type systems of the ML family add value, but > I've been wondering recently if for Clojure it wouldn't make more sense to > simply extend the type hints to enable an optional Java like static typing > scheme. > > It is my understanding that ML style static typing is incredibly difficult > to add properly and without compromise to a dynamic language. That doing so > limits the scope of type inference, rendering the task of adding type info > more tedious then in ML languages themselves. > > ML style static typing provide enhanced safety grantees, but seem to add > too much complexity to Clojure to be practical. What about a Java like > static typing scheme though? > > I haven't found in practice that the safety of Clojure was an issue, as > the REPL workflow tend to promote quite a lot of testing. So I'm not too > worried about needing the state of the art of provable correctness for my > programs. What has been a biggest cause of issue to me was refactoring and > shared code base across a team. Those last two use cases are actually > pretty well handled by Java like static type checking. Is it a powerful > type checker, not really, but it enables most trivial type errors to be > caught early, and it allows easier integration points for other devs to > follow, as well as documentation for functions, better tools support and > easier refactoring, while also enabling performance optimizations. > > I have limited knowledge in typing systems, and have no idea how easy it > is to implement them, but as a user of Clojure, I feel like I would find an > optional Java like static typing a great addition, one that I am more > willing to use and benefit from then Typed Clojure's more complex ML style > type checking. > > What do other think? > Can anyone with better knowledge tell me if this would be feasible or if > adding such gradual typing system is effectively as hard as adding ML style > type checking? > > -- > 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. > -- 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.
