CoffeeScript Loader for rhino.

coffee.loader.js

load("coffee-script.js");

var eval = (function(scope){
  var __context__ = Packages.org.mozilla.javascript.Context.getCurrentContext();

  function __eval(scope, source, name){
    __context__.evaluateString(
      scope,
      source,
      name,
      0,
      null
      );
  }

  function eval(source){
    __eval(scope, source, 'eval(' + source.substring(0, 100) + ')');
  }

  return {
    eval: eval
  }
})(this).eval;

var loader = (function(){
  function isCoffee(file){
    return file.isFile() && file.getPath().endsWith(".coffee");
  }

  function coffee(filename){
    var file = new java.io.File(filename);
    if(isCoffee(file)){
      var source = readFile(file.getPath());
      var compiledSource = CoffeeScript.compile(source, {bare: true});
      eval(compiledSource);
    }else{
      throw "LoadError: (" + filename + ") is not coffee";
    }
  }

  return {
    coffee: coffee
  }
})();

loader.coffee("somefilename.coffee")