using System;

using System.Threading.Tasks;

​

​

public class Program

{

    static async Task Main(string[] args)

    {

        FuntionDecorator(() => true);

        FuntionDecorator(() => false);

        FuntionDecorator(() => throw new Exception());

    }   

    public static void FuntionDecorator(Func<bool> Func, string successText = "success", string failText = "fail", string errorText = "error") => Decorator(Func, Func.Method.Name, successText, failText, errorText);

​

    public static void FuntionDecorator<T>(Func<T, bool> Func, T type, string successText = "success", string failText = "fail", string errorText = "error")

    {

        Decorator(Func, Func.Method.Name, successText, failText, errorText);

    }

​

    public static void FuntionDecorator<T1, T2>(Func<T1, T2, bool> Func, T1 type1, T2 type2, string successText = "success", string failText = "fail", string errorText = "error")

    {

        Decorator(Func, Func.Method.Name, successText, failText, errorText);

    }

​

    public static void Decorator(dynamic f, string funcName, string successText = "success", string failText = "fail", string errorText = "error")

    {

        try

        {

            var isTrue = f();

            if (isTrue)

            {

                Console.WriteLine("When Func is true");

            }

            else

            {

                Console.WriteLine("When Func is false");

            }

        }

        catch (Exception e)

        {

            Console.WriteLine("When Func excpetion, errorText: {0}, funcName: {1}, ex: {2}", errorText, funcName, e.ToString());

            //var message = errorText + funcName + ex.ToString();

        }

    }

}