persistable sclass ResolvableLASClass is IResolvableClass {
  transient ILASClassLoader lasClassLoader;
  LASClassDef classDef;
  Class resolvedClass;
  
  *(ILASClassLoader *lasClassLoader, LASClassDef *classDef) {}
  
  public Class get aka resolveToClass() {
    if (resolvedClass == null) {
      if (lasClassLoader == null)
        fail("Need LASClassLoader to define " + classDef.userGivenName);
      resolvedClass = lasClassLoader.defineLASClass(classDef.finalClassName(),
        -> classDef.toBytes());
        
      // set static fields
      classDef.init(resolvedClass);
    }
    ret resolvedClass;
  }
  
  // This function is very defensive (doesn't resolve anything)
  toString {
    if (resolvedClass != null)
      ret className(resolvedClass);
    
    try object userGivenName();
    
    if (classDef.classHash_cache != null)
      ret classDef.finalClassNameWithoutPrefix();
      
    ret or2(userGivenName(), "script-defined class")
      + " [unresolved]";
  }
  
  S userGivenName() { ret classDef.userGivenName; }
}