Currying

gistfile1.cs

using System;
using System.Net;

namespace curry
{
    class Program
    {
        static void Main(string[] args)
        {
            var url = "http://www.microsoft.com/";


            Func<string, string> d = Download;

            Console.WriteLine(d(url));
            Console.WriteLine(d.Partial(url).Retry(5));
            Console.WriteLine((d.Curry()(url)).Retry(5));


            var d2 = d.Curry();
            Console.WriteLine(d2(url).Retry(5));

            dynamic C = new Program();
            C.Foo = "jk";

            Console.WriteLine(C.Foo);

        }

        private static string Download(string url)
        {
            return (new WebClient()).DownloadString(url);
        }
    }

    public static class Extensions
    {
        public static T Retry<T>(this Func<T> func, int retries)
        {
            for (int i = 0; i < retries; i++)
            {
                try
                {
                    return func();
                }
                catch (Exception)
                {
                }
            }
            return default(T);
        }


        public static Func<TResult> Partial<TParameter, TResult>(this Func<TParameter, TResult> func, TParameter param)
        {
            return () => func(param);
        }

        public static Func<TParameter, Func<TResult>> Curry<TParameter, TResult>(this Func<TParameter, TResult> func)
        {
            return param => (() => func(param));
        }
    }
}