using System;

​

namespace HOME {

public static class DefaultValExtensions 

{

    public static T OrDefault<T>(this T val) where T: class, new() 

    {

        if(val == null)

            return new T();

        return val;

    }

    public static string OrDefault(this string val)

    {

        if(val == null)

            return "Hello world";

        return val;

    }

}

​

    class Something {

        public string Val {get; set;}

    }

public class Program

{

    public static void Main()

    {

        Something asdf = null;

        Console.WriteLine("Second : {0}", asdf.OrDefault().Val.OrDefault());

    }

}

}