Compile ClojureScript in Java application

Question

I'm trying to compile String that contains Clojure Script code in Java/Groovy. I'm not really happy with using "java -jar ...".execute().

Is there any way to invoke clojurescript library (version 1.8.51) to compile code?

Edit: So combining these two links I got this code (Groovy):

    IFn require = Clojure.var("clojure.core", "require");
    require.invoke(Clojure.read("cljs.analyzer.api"))
    require.invoke(Clojure.read("cljs.compiler.api"))

    IFn emptyEnv = Clojure.var("cljs.analyzer.api", "empty-env")
    IFn analyze = Clojure.var("cljs.analyzer.api", "analyze")
    IFn emit = Clojure.var("cljs.compiler", "emit-str")

    final inputText = "(defn plus [a b] (+ a b))"
    emit.invoke(
            analyze.invoke(emptyEnv.invoke(), "'$inputText"
            )
    )

My problem is that emit function return empty string :/. Is there anything I'm doing wrong?

Edit2: The analyze method return this:

{
    :op :constant, 
    :env {:ns {:name cljs.user}, 
    :context :statement, 
    :locals {}, 
    :fn-scope [], 
    :js-globals ...removed..., 
    :form #object[org.codehaus.groovy.runtime.GStringImpl 0x37816ea6 "'(defn plus [a b] (+ a b))"], 
    :tag any
}

Piotrek Bzdyl · Accepted Answer · 2016-04-27 06:15:33Z

1

It should be very easy to call ClojureScript Compiler API from Clojure, for example as presented in answers to a similar question on how to do it from Clojure.

But as you want to do it from Java or Groovy, you will have to use some Clojure Java API for calling Clojure from Java.

answered Apr 27, 2016 at 6:15

Piotrek Bzdyl

13.2k1 gold badge36 silver badges51 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Piotrek Bzdyl Over a year ago

I think you should post it as another question as it sounds as a new problem you are now solving. The issue in your code is that you are passing a String to analyze.invoke whereas it should be a Clojure datastructure representing the code. So instead of passing the plain string, pass the result of call to Clojure.read(inputText).

MAGx2 Over a year ago

I've added Clojure.read and removed quote - everything works. Thanks!

Collectives™ on Stack Overflow

Compile ClojureScript in Java application

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related