6 ms·

See ABCL (http://abcl.org/ http://abcl.org/) and JSCL (https://github.com/jscl-project/jscl https://github.com/jscl-project/jscl)

• lvh 10y ago
  JSCL is quite different from ClojureScript. ClojureScript has a self-hosted form (which, AFAICT, is the default for JSCL), but that's not what you want for most applications if you want to produce efficient minified code. My two specific claims about ClojureScript being good included source maps and aggressive optimizations (and all of the cool side effects from having Closure as your module system) -- neither applies to Parenscript (as I mentioned) or JSCL.
• lvh 10y ago
  Some Java: public class Main { public int addTwoNumbers(int a, int b) { return a + b; } } Calling it from ABCL: (defun void-function (param) (let* ((class (jclass "Main")) (intclass (jclass "int")) (method (jmethod class "addTwoNumbers" intclass intclass)) (result (jcall method param 2 4))) (format t "in void-function, result of calling addTwoNumbers(2, 4): ~a~%" result))) Calling it from Clojure: (defn f [] (prn "calling addTwoNumbers from f" (.addTwoNumbers (Main.) 2 4))) Note that the Clojure version creates the object, and the ABCL version doesn't do that for you; you still need to instantiate a Main yourself. Also, my concrete claim was that I could use AWS easily. I can use both the SDK directly quite painlessly (see above) or use https://github.com/mcohen01/amazonica https://github.com/mcohen01/amazonica. Where is the equivalent CL library?
  • junke 10y ago
    Use JSS (http://abcl.org/svn/tags/1.3.0/contrib/jss/README.markdown http://abcl.org/svn/tags/1.3.0/contrib/jss/README.markdown): ;; During initialization (require 'abcl-contrib) (require 'jss) Then, for example: CL-USER(1): (in-package :jss) JSS(2): (lambda (x y) (format t "~&addTwoNumbers(~A, ~A): ~A~%" x y (#"addTwoNumbers" (new 'Main) x y))) #<FUNCTION (LAMBDA (X Y)) {7EEE31B2}> JSS(3): (funcall * 20 30) addTwoNumbers(20, 30): 50 NIL The same goes for any Java library. As for AWS, I have no experience with it. Looking around, there seems to be https://github.com/hargettp/hh-aws https://github.com/hargettp/hh-aws. Btw, I am not attacking Clojure, but the idea that Clojure is the only useful Lisp available on the JVM.
    • lvh 10y ago
      That is a lot better, thanks. hh-aws is unmaintained and only supports a tiny, tiny fraction of AWS.