Basic simulation of a Node module

basic-simulation-node-module.js

function Module(scope, global){
  this.scope = scope;
  this.exports = {};
  this.global = global || window || this;
}

function ModuleError(message) {
  Error.call(this);
  Error.captureStackTrace(this, ModuleError);
  this.name = 'ModuleError';
  this.message = message;
}
ModuleError.prototype = Error.prototype;
ModuleError.prototype.constructor = ModuleError;

Module.prototype.compile = function(code) {
  var scope = this.scope
    , closure = new Function('module', 'exports', code)
  
  scope.exports = this.exports;
  closure = closure.bind(this.global);
  try {
    closure(scope, scope.exports);
  }
  catch (error) {
    console.error( new ModuleError(error) )
  }
};

// Try it out...
var module = new Module({
  myVariable: 'myValue', 
  myFunc: function(){ console.log("I'm a scoped function local to the module"); }
});

module.compile('console.log(module.myVariable);'); // myValue
module.compile('module.myFunc();'); // I'm a scoped function local to the module.
module.compile('nonExistentFunction();'); // throws ModuleError: ReferenceError: nonExistentFunction is not defined
module.compile('exports.MyClass = function MyClass(){};');
module.compile('console.log(exports)'); // Object {MyClass: function}
module.compile('module.exports.MyOtherClass = function MyOtherClass(){};');
module.compile('console.log(exports)'); // Object {MyClass: function, MyOtherClass: function}