MiniProfiler.StepHere Extension

        /// <summary>
        /// Does a Step with the location of caller as the label.
        /// </summary>
        public static IDisposable StepHere(
            this MiniProfiler profiler, 
            [CallerMemberName] string memberName = "", 
            [CallerFilePath] string sourceFilePath = "", 
            [CallerLineNumber] int sourceLineNumber = 0)
        {
            if (profiler == null) return null;
            return profiler.Step(string.Format("{0} - {1}:{2}", 
                memberName, 
                Path.GetFileName(sourceFilePath), 
                sourceLineNumber));
        }