title: Prevent access to certain libraries in dart
body: <p>Is there a way to prevent access to certain libraries in dart? The reason why is I want to allow a scripting language in my application. It looked like dart would make that easy, by just limiting what libraries one could import and defining my own libraries. Is this a viable option? For example, I would want to completely remove access to dart:html so that why the scripts can't mess with the DOM.</p>