Error in Generic class with Ienumerable generic parameter

[luizfbicalho]

Description

I have an error when I use the unity.configuration that I can't reproduce without the configuration,
I have Interfaces IRepository and IRule
and the Repository class receives an IEnumerable<IRule in the constructor

If I use the unity.config file to register those registrations, I get an error in the resolve of the IRepository.
But if I register by code, I can't reproduce the error, I think that something is missing in the registration, but I can't find what it is.

To Reproduce

Please provide UnitTest in the form of:

class ErrorGenericAndConfig
	{
		[TestMethod]
		static void ErrorWithGenericIEnumerableAndUnityConfig()
		{
			var container = new UnityContainer();

			var unitySection = (UnityConfigurationSection)ConfigurationManager.GetSection("unity");
			if (unitySection != null)
			{
				unitySection.Configure(container);

			}
			var rep = container.Resolve<IRepository<Entity>>();

			AssertExtensions.IsInstanceOfType(rep, typeof(Repository<Entity>));

			var container2 = new UnityContainer();
			container2.RegisterType(typeof(IRepository<>), typeof(Repository<>),new HierarchicalLifetimeManager());
			container2.RegisterType(typeof(IRule<>), typeof(Rule1<>), "Rule1", new HierarchicalLifetimeManager(),new Unity.Registration.InjectionMember[] { });
			container2.RegisterType(typeof(IRule<>), typeof(Rule2<>), "Rule2", new HierarchicalLifetimeManager(), new Unity.Registration.InjectionMember[] { });
			var rep2 = container2.Resolve<IRepository<Entity>>();

			AssertExtensions.IsInstanceOfType(rep2, typeof(Repository<Entity>));


		}
	}

	public interface IRepository<T>
	{
	}

	public class Repository<T> : IRepository<T>
	{
		public Repository(IEnumerable<IRule<T>> rules)
		{
			this.Rules = rules;
		}

		public IEnumerable<IRule<T>> Rules { get; }
	}

	public interface IRule<T>
	{

	}
	public class Rule2<T> : IRule<T>
	{

	}
	public class Rule1<T> : IRule<T>
	{

	}

	public class Entity
	{
		public int Id { get; set; }
		public string Description { get; set; }
	}

Additional context

<unity xmlns="http://schemas.microsoft.com/practices/2010/unity"> <container> <register type="ErroUnityGeneric.IRepository1, ErroUnityGeneric"
mapTo="ErroUnityGeneric.Repository`1, ErroUnityGeneric"
name="">

	<register type="ErroUnityGeneric.IRule`1, ErroUnityGeneric"
					mapTo="ErroUnityGeneric.Rule1`1, ErroUnityGeneric"
					name="Rule1">
		<lifetime  type="hierarchical"/>
		<constructor >
		</constructor>
	</register>
	<register type="ErroUnityGeneric.IRule`1, ErroUnityGeneric"
					mapTo="ErroUnityGeneric.Rule2`1, ErroUnityGeneric"
					name="Rule2">
		<lifetime  type="hierarchical"/>
		<constructor >
		</constructor>
	</register>

</container>

`

[luizfbicalho]

I found two differences in the Registration Object

this is the Next property of the registration that doesn't work

"Next": {
"Key": "Unity.Policy.IBuildKeyMappingPolicy, Unity.Abstractions, Version=3.3.1.0, Culture=neutral, PublicKeyToken=6d32ff45e0ccc69f",
"Next": {
"Key": "Unity.Policy.IConstructorSelectorPolicy, Unity.Abstractions, Version=3.3.1.0, Culture=neutral, PublicKeyToken=6d32ff45e0ccc69f",
"Next": null,
"Value": {
}
},
"Value": {
"Name": "Rule1",
"RequireBuild": true,
"Type": "ErroUnityGeneric.Rule1`1, ErroUnityGeneric, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"
}
},

And this is the Next property of the registration that work

"Next": {
"Key": "Unity.Policy.IBuildKeyMappingPolicy, Unity.Abstractions, Version=3.3.1.0, Culture=neutral, PublicKeyToken=6d32ff45e0ccc69f",
"Next": null,
"Value": {
"Name": "Rule1",
"RequireBuild": false,
"Type": "ErroUnityGeneric.Rule1`1, ErroUnityGeneric, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"
}
},

I changed the registration object after and tryed to resolve the object and It worked for me.

[ENikS]

You've got so far, do you want to try to fix it? I am a bit swamped at the moment so it might be a while....

[luizfbicalho]

I tryed to find the most detailed information to help you in this problem, but I don't think that I can solve this because I don't know what those differences in the registration mean.

I think that this error should remain in the radar, but I found a way to solve it in my project.

Thanks

[luizfbicalho]

I'm trying to help with this issue, but I just hit a dead end here and could use some help.
I didn't find in the unity configuration project where it uses the Unity.Policy.IConstructorSelectorPolicy
Looks like the configuration goes to some Obsolete classes.
Looks like is something about the TypeResolverImpl
It's not clear where this happens.

If @ENikS give me some directions I could help out with this issue