/// <summary>Evaluates script in the given stack frame.</summary>
/// <remarks>Evaluates script in the given stack frame.</remarks>
private static string Do_eval(Context cx, Dim.StackFrame frame, string expr)
{
string resultString;
Rhino.Debug.Debugger saved_debugger = cx.GetDebugger();
object saved_data = cx.GetDebuggerContextData();
int saved_level = cx.GetOptimizationLevel();
cx.SetDebugger(null, null);
cx.SetOptimizationLevel(-1);
cx.SetGeneratingDebug(false);
try
{
Callable script = (Callable)cx.CompileString(expr, string.Empty, 0, null);
object result = script.Call(cx, frame.scope, frame.thisObj, ScriptRuntime.emptyArgs);
if (result == Undefined.instance)
{
resultString = string.Empty;
}
else
{
resultString = ScriptRuntime.ToString(result);
}
}
catch (Exception exc)
{
resultString = exc.Message;
}
finally
{
cx.SetGeneratingDebug(true);
cx.SetOptimizationLevel(saved_level);
cx.SetDebugger(saved_debugger, saved_data);
}
if (resultString == null)
{
resultString = "null";
}
return resultString;
}
