public InterpretedClosure(Env env, AbstractFunction fun, Value qThis)
        {
            super(fun.getName(), qThis);

            _fun = fun;

            Arg [] args = fun.getClosureUseArgs();
            if (args != null && args.length > 0)
            {
                _args = new Value[args.length];

                for (int i = 0; i < args.length; i++)
                {
                    Arg arg = args[i];

                    if (arg.isReference())
                    {
                        _args[i] = env.getRef(arg.getName());
                    }
                    else
                    {
                        _args[i] = env.getValue(arg.getName());
                    }
                }
            }
            else
            {
                _args = null;
            }
        }