Demo: Basic Usage of DynamicMethod to Omit Opcodes

Program.cs

public sealed class Program
{
    static void Main(string[] args)
    {
        var result = Math.AddNumbers(10, 20);

        Console.WriteLine(result);
        Console.ReadKey();
    }
}


public static class Math
{
    public static int AddNumbers(int numberOne, int numberTwo)
    {
        var dynamicMethod =
                new DynamicMethod("AddNumbers", typeof (int), new [] {typeof (int), typeof (int)});

        var generator = dynamicMethod.GetILGenerator();

        generator.Emit(OpCodes.Ldarg_0);
        generator.Emit(OpCodes.Ldarg_1);
        generator.Emit(OpCodes.Add);
        generator.Emit(OpCodes.Ret);

        var dynamicMethodDelegate =
                dynamicMethod.CreateDelegate(typeof (Func<int, int, int>));

        var addNumbersDelegate = (Func<int, int, int>) dynamicMethodDelegate;

        return addNumbersDelegate(numberOne, numberTwo);
    }
}