clj-polygot

Clojure interop into graalvm's polyglot functionality. Requires JDK11+ or a graalvm runtime.

• clj-polyglot.core - eval fn + seralization/deserialization fns
• clj-polyglot.js - JavaScript context

This library was used to build tonal-clj

TODO: extend this library to support other graalvm languages

Usage

Consider a JavaScript API like tonal:

import { Note, Interval, Scale } from "@tonaljs/tonal";
Note.freq("a4").freq; // => 440

We can interface with this library like so:

(require '[clj-polyglot.core :as poly])
(require '[clj-polyglot.js :as poly.js])

(def tonal-src 
 (slurp "https://cdn.jsdelivr.net/npm/@tonaljs/tonal/browser/tonal.min.js"))

(def ctx
  (poly.js/js-ctx tonal-src))

(def tonal
  (poly.js/from ctx "Tonal"))

(def api
  (poly.js/import tonal :Note [:midi :freq]))

(defn freq [note]
  (poly/eval api :freq note))

(freq "A4") ;; => 440