Autofac decorating open generics registered with assembly scan

Question

I am trying to apply the autofac decorator support function to my script without success. It seems that in my case, it incorrectly assigns a name to the registers.

Is there a way to register scanned assembly types with a name so that I can use it later in the universal decorator window that opens?

Or maybe I'm completely wrong and doing something inappropriate here?

builder.RegisterAssemblyTypes(typeof(IAggregateRepositoryAssembly).Assembly)
    .AsClosedTypesOf(typeof(IAggregateViewRepository<>)) //here I need name, probably
    .Named("view-implementor", typeof(IAggregateViewRepository<>))
    .SingleInstance();

builder.RegisterGenericDecorator(typeof(CachedAggregateViewRepository<>),
    typeof(IAggregateViewRepository<>), fromKey: "view-implementor");

Answer 1

Here's an attempt, not in front of Visual Studio, so overload resolution might not be entirely correct:

builder.RegisterAssemblyTypes(typeof(IAggregateRepositoryAssembly).Assembly)
    .As(t => t.GetInterfaces()
              .Where(i => i.IsClosedTypeOf(typeof(IAggregateViewRepository<>))
              .Select(i => new KeyedService("view-implementor", i))
              .Cast<Service>())
    .SingleInstance();

• Named() - Keyed(), KeyedService
• As() Func<Type, IEnumerable<Service>>

:

using Autofac;
using Autofac.Core;

Answer 2

, ( autofac , ):

using Autofac;
using Autofac.Builder;
using Autofac.Core;
using Autofac.Features.Scanning;

public static class AutoFacExtensions
{
    public static IRegistrationBuilder<TLimit, TScanningActivatorData, TRegistrationStyle>
        AsClosedTypesOf<TLimit, TScanningActivatorData, TRegistrationStyle>(
            this IRegistrationBuilder<TLimit, TScanningActivatorData, TRegistrationStyle> registration,
            Type openGenericServiceType,
            object key)
        where TScanningActivatorData : ScanningActivatorData
    {
        if (openGenericServiceType == null) throw new ArgumentNullException("openGenericServiceType");

        return registration.As(t => 
            new[] { t }
            .Concat(t.GetInterfaces())
            .Where(i => i.IsClosedTypeOf(openGenericServiceType))
            .Select(i => new KeyedService(key, i)));
    }
} 

:

builder.RegisterAssemblyTypes(typeof(IAggregateRepositoryAssembly).Assembly)
    .AsClosedTypesOf(typeof(IAggregateViewRepository<>), "view-implementor")
    .SingleInstance();