moma.cs

using Newtonsoft.Json;
using System;
using System.Collections.Generic;

namespace LeMoma
{
    public static class Program
    {
        public static void Test<TMoma>(this TMoma moma) where TMoma : IMoma
        {
            var dict = new Dictionary<IMoma, string>();
            dict.Add(moma, "X");

            Console.WriteLine("Can I find the moma KEY in the dictionary? " + dict.ContainsKey(moma));
            var momaClone = JsonConvert.DeserializeObject<TMoma>(JsonConvert.SerializeObject(moma));
            Console.WriteLine("Can I find the moma KEY in the dictionary using a cloned moma? " + dict.ContainsKey(momaClone));

            moma.Ma++;
            Console.WriteLine("After I update moma's value, can I still find it in the dictionary? " + dict.ContainsKey(moma));
        }


        static void Main(string[] args)
        {
            Console.WriteLine("\r\nTesting with value type---");
            new ValueMoma() { Mo = "mo", Ma = 1 }.Test();

            Console.WriteLine("\r\nTesting with reference type---");
            new ReferenceMoma() { Mo = "mo", Ma = 1 }.Test();
        }

        public interface IMoma
        {
            string Mo { get; set; }
            int Ma { get; set; }
        }

        struct ValueMoma : IMoma
        {
            public string Mo { get; set; }
            public int Ma { get; set; }
        }

        class ReferenceMoma : IMoma
        {
            public string Mo { get; set; }
            public int Ma { get; set; }
        }
    }
}