include("Worlds2_Compiled")


Person = function(age) { this.age = age; }

// ----------------------------------------

Object.prototype.get = function(p) {
  in callingWorld {
    return this[p];
  }
}

Object.prototype.set = function(p, v) {
  in callingWorld {
    this[p] = v;
  }
}

// ----------------------------------------

World.prototype.useForEvaluating = function(f) {
  var cw = thisWorld;
  in this {
    callingWorld = cw;
    return f();
  }
}

// ----------------------------------------

betterModule = thisWorld.sprout()
in betterModule {
  Person.prototype.makeOlder = function() {
    this.set("age", this.get("age") + 1);
  }
}

// ----------------------------------------

alice = new Person()
alice.age = 25

betterModule.useForEvaluating(function() {
  alex.makeOlder();
})




ourOtherModule = thisWorld.sprout()
in ourOtherModule {
  Person.prototype.makeOlder = function() {
    this.age = this.age + 1
  }
}

alex = new Person(30)
in ourOtherModule {
  alex.makeOlder()
  alert(alex.age)
}
alert(alex.age)

// -----------------------------------

Person.prototype.setAge = (function() {
  var w = thisWorld
  return function(age) {
    in w { this.age = age }
  }
})()

ourOtherModule = thisWorld.sprout()
in ourOtherModule {
  Person.prototype.makeOlder = function() { this.setAge(this.age + 1) }
}

in ourOtherModule {
  alex.makeOlder();
  alert(alex.age)
}
alert(alex.age)


// -----------------------------------

// maybe should use more general setter in example above?
Object.prototype.set = (function() {
  var topLevelWorld = thisWorld
  return function(p, v) {
    in topLevelWorld { this[p] = v }
  }
})()

// -----------------------------------

// the best way to do it

Object.prototype.get = function(p) {
  in callingWorld {
    return this[p]
  }
}

Object.prototype.set = function(p, v) {
  in callingWorld {
    this[p] = v
  }
}

World.prototype.useForEvaluating = function(f) {
  var cw = thisWorld
  in this {
    callingWorld = cw
    f()    
  }
}

in ourOtherModule {
  Person.prototype.makeOlder = function() {
    this.set("age", this.get("age") + 1);
  }
}

// ----

ourOtherModule.useForEvaluating(function() {
  alex.makeOlder();
  alert(alex.get("age"));
})
alert(alex.age);

in thisWorld.sprout() {
  ourOtherModule.useForEvaluating(function() {
    alex.makeOlder();
    alert(alex.get("age"));
  })
}
alert(alex.age)