Conversor de Enum

Helper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;

namespace SGI
{
    public static class Helper
    {
        // Exemplo de Utilização
        // _NF_Entrada.indFinal = Helper.Generico<ConsumidorFinal>(_nfe.infNFe.ide.indFinal.Value);
    
        public static int Generico<T>(T t)
        {
            int variable = -1;

            variable = CastTo<int>.From(t);

            return variable;
        }
    }

    public static class CastTo<T>
    {
        /// <summary>
        /// Conversor de Enum
        /// </summary>
        /// <typeparam name="S">Tipo Generico.</typeparam>
        public static T From<S>(S s)
        {
            return Cache<S>.caster(s);
        }

        private static class Cache<S>
        {
            public static readonly Func<S, T> caster = Get();

            private static Func<S, T> Get()
            {
                var p = Expression.Parameter(typeof(S));
                var c = Expression.ConvertChecked(p, typeof(T));
                return Expression.Lambda<Func<S, T>>(c, p).Compile();
            }
        }
    }
}
}