private static IEnumerable <InstanceProducer[]> GetTornRegistrationGroups(
IEnumerable <InstanceProducer> producers) =>
from producer in producers
where !producer.IsDecorated
where producer.Registration.Lifestyle != Lifestyle.Transient
where !SingletonLifestyle.IsSingletonInstanceRegistration(producer.Registration)
where !producer.Registration.WrapsInstanceCreationDelegate
group producer by producer.Registration into registrationGroup
let registration = registrationGroup.Key
let lifestyle = registration.Lifestyle.IdentificationKey
let key = new { registration.ImplementationType, lifestyle }
group registrationGroup by key into registrationLifestyleGroup
let possibleConflictingProducers = registrationLifestyleGroup.SelectMany(p => p).ToArray()
let hasConflict = registrationLifestyleGroup.Count() > 1
// HACK: Fixes #769. In case all producers in the group are Singleton and produce the same
// instance, it will not result in a torn registration, as a torn registration produces
// multiple instances. This is kind-of a hack, because the source of the problem lies within
// the ContainerControlledCollection.GetOrCreateInstanceProducer method, as it creates a new
// ExpressionRegistration instead of reusing the same. Changing that code, however, causes
// other bugs (and failing tests). Because of that, we filter the problem out at this stage.
&& (possibleConflictingProducers.Any(p => p.Lifestyle != Lifestyle.Singleton) ||
possibleConflictingProducers.Select(p => p.GetInstance()).Distinct().Count() > 1)
where hasConflict
select possibleConflictingProducers;
private static IEnumerable <InstanceProducer[]> GetTornRegistrationGroups(
IEnumerable <InstanceProducer> producers) =>
from producer in producers
where !producer.IsDecorated
where producer.Registration.Lifestyle != Lifestyle.Transient
where !SingletonLifestyle.IsSingletonInstanceRegistration(producer.Registration)
where !producer.Registration.WrapsInstanceCreationDelegate
group producer by producer.Registration into registrationGroup
let registration = registrationGroup.Key
let key = new { registration.ImplementationType, Lifestyle = registration.Lifestyle.GetType() }
group registrationGroup by key into registrationLifestyleGroup
let hasConflict = registrationLifestyleGroup.Count() > 1
where hasConflict
select registrationLifestyleGroup.SelectMany(p => p).ToArray();
private static IEnumerable <InstanceProducer[]> GetTornRegistrationGroups(
IEnumerable <InstanceProducer> producers) =>
from producer in producers
where !producer.IsDecorated
where producer.Registration.Lifestyle != Lifestyle.Transient
where !SingletonLifestyle.IsSingletonInstanceRegistration(producer.Registration)
where !producer.Registration.WrapsInstanceCreationDelegate
group producer by producer.Registration into registrationGroup
let registration = registrationGroup.Key
let lifestyle = registration.Lifestyle.IdentificationKey
let key = new { registration.ImplementationType, lifestyle }
group registrationGroup by key into registrationLifestyleGroup
let possibleConflictingProducers = registrationLifestyleGroup.SelectMany(p => p).ToArray()
where HasConflict(registrationLifestyleGroup.Count(), possibleConflictingProducers)
select possibleConflictingProducers;