TypeSwitch.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace CSP_PGP_Fileprocessor_util
{
    static class TypeSwitch
    {
        public class CaseInfo {
            public bool IsDefault { get; set; }
            public Type Target { get; set; }
            public Action<object> Action { get; set; }
        }

        public static void Do(Type source, params CaseInfo[] cases)
        {
            var Type = source;
            foreach (var entry in cases)
            {
                if (entry.IsDefault || entry.Target.IsAssignableFrom(Type))
                {
                    entry.Action(source);
                    break;
                }
            }
        }

        public static void Do(object source, params CaseInfo[] cases)
        {
            var Type = source.GetType();
            foreach (var entry in cases)
            {
                if (entry.IsDefault || entry.Target.IsAssignableFrom(Type))
                {
                    entry.Action(source);
                    break;
                }
            }
        }

        public static CaseInfo Case<T>(Action action)
        {
            return new CaseInfo()
            {
                Action = x => action(),
                Target = typeof(T)
            };
        }

        public static CaseInfo Case<T>(Action<T> action)
        {
            return new CaseInfo()
            {
                Action = (x) => action((T)x),
                Target = typeof(T)
            };
        }

        public static CaseInfo Default(Action action)
        {
            return new CaseInfo()
            {
                Action = x => action(),
                IsDefault = true
            };
        }

    }
}