Is this how you use mono's evaluator?

evaluate_cs.cs

public static dynamic ParseFunc (string func, out string error)
    {
			dynamic retval = null;

			error = null;

			using (var ms = new MemoryStream()) {
				using(var tr = new StreamWriter(ms)){

					var settings = new CompilerSettings();
					var reporter = new StreamReportPrinter(tr);
					var cc = new CompilerContext(settings, reporter);
					var eval = new Evaluator (cc);

					var result = eval.Evaluate(func);
				}
				ms.Position = 0;
				using(var sr = new StreamReader(ms)){
					error = sr.ReadToEnd();
				}
			}
			return retval;
		}