namespace System.Web.Mvc {
    using System.Collections.Generic;
    using System.Linq;
    using System.Runtime.Serialization;

    public static class DependencyResolverExtensions {
        public static TService GetService<TService>(this IDependencyResolver resolver) {
            return (TService)resolver.GetService(typeof(TService));
        }

        public static IEnumerable<TService> GetServices<TService>(this IDependencyResolver resolver) {
            return resolver.GetServices(typeof(TService)).Cast<TService>();
        }
    }
}