using System;

using System.Collections.Generic;

using System.Diagnostics;

using System.Linq;

using System.Reflection;

using Fasterflect;

using ImmediateReflection;

​

public class Program

{

     public class MyClass

    {

        public int Number { get; set; } = 1;

    }

    public static void Main()

    {

         var repeat = 10_000_00;

            List<MyClass> myClassList = Enumerable.Repeat(new MyClass(), repeat).ToList();

            var sw = Stopwatch.StartNew();

​

            int aux = 0;

            long sum = 0;

            foreach (var obj in myClassList)

            {

                aux = obj.Number;

                sum += aux;            

            }

​

            Console.WriteLine($"Classic: {sw.Elapsed.TotalMilliseconds} ms. Sum: {sum}");

​

            sw.Restart();

            aux = 0;

            sum = 0;

            PropertyInfo info = typeof(MyClass).GetProperty("Number");

            foreach (var obj in myClassList)

            {

                aux = (int) info.GetValue(obj);

                sum += aux;               

            }

​

            Console.WriteLine($"Reflection: {sw.Elapsed.TotalMilliseconds} ms. Sum: {sum}");

​

            sw.Restart();

            aux = 0;

            sum = 0;

            Func<MyClass, int> getter = (Func<MyClass, int>) Delegate.CreateDelegate(typeof(Func<MyClass, int>), null,

                typeof(MyClass).GetProperty("Number").GetGetMethod());

​

            foreach (var obj in myClassList)

            {

                aux = (int) getter.Invoke(obj);

                sum += aux;

            }

​

            Console.WriteLine($"Delegate: {sw.Elapsed.TotalMilliseconds} ms. Sum: {sum}");

            aux = 0;

            sum = 0;

​

            var typeClass = typeof(MyClass);

            foreach (var myClass in myClassList)

            {

                aux = (int) myClass.GetPropertyValue("Number");

​

                sum += aux;

            }

​

            Console.WriteLine($"Fasterflect not cached: {sw.Elapsed.TotalMilliseconds} ms. Sum: {sum}");

​

            aux = 0;

            sum = 0;

​

            typeClass = typeof(MyClass);

            var delegateForGetPropertyValue = typeClass.DelegateForGetPropertyValue("Number");

            foreach (var myClass in myClassList)

            {

                aux = (int) delegateForGetPropertyValue(myClass);

                sum += aux;

            }

​

            Console.WriteLine($"Fasterflect cached: {sw.Elapsed.TotalMilliseconds} ms. Sum: {sum}");

​

​

            aux = 0;

            sum = 0;

            var getAccess = TypeAccessor.Get(typeof(MyClass));

            var immediateProperty = getAccess.GetProperty("Number");

​

            foreach (var myClass in myClassList)

            {

                aux = (int) immediateProperty.GetValue(myClass);

                sum += aux;

            }

​

            Console.WriteLine($"ImmediateReflection: {sw.Elapsed.TotalMilliseconds} ms. Sum: {sum}");

    }

}