using System;

using DryIoc;

​

​

public class Program

{

    public static void Main()

    {   

        var container = new Container();

        // note usage of UseInstance instead of obsolete RegisterInstance

        container.UseInstance(new LoggerFactory()); 

        var loggerFactoryMethod = typeof(LoggerFactory).GetMethod("CreateLogger");

        container.Register(typeof(ILogger<>), made: Made.Of(

            req => loggerFactoryMethod.MakeGenericMethod(req.Parent.ImplementationType),

            ServiceInfo.Of<LoggerFactory>()));

        container.Register<MyService>();

​

        container.Resolve<MyService>();

    }

    class MyService 

    {   

        public MyService(ILogger<MyService> logger) { logger.Log("Hey!"); }

    }

    interface ILogger<T> 

    {

        void Log(string msg);

    }

    class ConsoleLogger<T> : ILogger<T>

    {

        public void Log(string msg) { Console.WriteLine(typeof(T) + ": " + msg); }

    }

    class LoggerFactory 

    {

        public ILogger<T> CreateLogger<T>() { return new ConsoleLogger<T>(); }

    }

}