public void ExpressionRegistrationSetLifetimeThrowsExceptionIfInvalidLifetimeIsSupplied()
{
var lifetime = new TransientLifetime();
var reg = new ExpressionRegistration<IFoo>(x => new Foo1(), lifetime, CompileMode.Delegate);
reg.SetLifetime((ILifetime)null);
}
public void ExpressionRegistrationCanBeChanged()
{
var container = new IocContainer();
var lifetime = new TransientLifetime();
var reg = new ExpressionRegistration<IFoo>(container, x => new Foo1(), lifetime, CompileMode.Delegate);
Assert.AreSame(reg.Lifetime, lifetime);
Assert.AreEqual(reg.CompileMode, CompileMode.Delegate);
var get1 = reg.GetInstance();
var newLifetime = new ContainerLifetime();
var newCompileMode = CompileMode.Dynamic;
// Set new lifetime
reg.SetLifetime(newLifetime);
Assert.AreSame(reg.Lifetime, newLifetime);
// Set different compile mode
reg.SetCompileMode(newCompileMode);
Assert.AreEqual(reg.CompileMode, newCompileMode);
var get2 = reg.GetInstance();
var get3 = reg.GetInstance();
// Check that the lifetime is also being used
Assert.AreNotSame(get1, get2);
Assert.AreSame(get2, get3);
}
public void ExpressionRegistrationSetCompileModeThrowsExceptionIfInvalidCompileModeIsSupplied()
{
var container = new IocContainer();
var lifetime = new TransientLifetime();
var reg = new ExpressionRegistration<IFoo>(container, x => new Foo1(), lifetime, CompileMode.Delegate);
reg.SetCompileMode((CompileMode)124);
}
private InstanceProducer BuildMutableCollectionProducerFromControlledCollection(
Type serviceType, Type elementType, MutableCollectionType collectionType)
{
Expression expression =
this.BuildMutableCollectionExpressionFromControlledCollection(serviceType, elementType);
// Technically, we could determine the longest lifestyle out of the elements of the collection,
// instead of using Transient here. This would make it less likely for the user to get false
// positive Lifestyle Mismatch warnings. Problem with that is that trying to retrieve the
// longest lifestyle might cause the array to be cached in a way that is incorrect, because
// who knows what kind of lifestyles the used created.
Registration registration =
new ExpressionRegistration(expression, serviceType, Lifestyle.Transient, this);
return(new InstanceProducer(serviceType, registration)
{
IsContainerAutoRegistered = !this.GetAllInstances(elementType).Any()
});
}
private InstanceProducer BuildMutableCollectionProducerFromUncontrolledCollection(
Type serviceType, Type elementType)
{
var enumerableProducer = this.GetRegistration(typeof(IEnumerable <>).MakeGenericType(elementType));
Expression enumerableExpression = enumerableProducer.BuildExpression();
var expression = Expression.Call(
method: serviceType.IsArray
? EnumerableToArrayMethod.MakeGenericMethod(elementType)
: EnumerableToListMethod.MakeGenericMethod(elementType),
arg0: enumerableExpression);
Registration registration =
new ExpressionRegistration(expression, serviceType, Lifestyle.Transient, this);
return(new InstanceProducer(serviceType, registration)
{
IsContainerAutoRegistered = true
});
}
internal void AddAppliedDecorator(
Type serviceType,
Type decoratorType,
Container container,
Lifestyle lifestyle,
Expression decoratedExpression,
IEnumerable <KnownRelationship> decoratorRelationships = null)
{
var registration = new ExpressionRegistration(
decoratedExpression, decoratorType, lifestyle, container);
registration.ReplaceRelationships(decoratorRelationships ?? Enumerable.Empty <KnownRelationship>());
var producer = new InstanceProducer(serviceType, registration)
{
IsDecorated = true
};
this.appliedDecorators.Add(new DecoratorInfo(decoratorType, producer));
}
public void ExpressionRegistrationWorksLikeExpected()
{
Expression<Func<IResolver, IFoo>> expression = x => new Foo1();
var container = new IocContainer();
var lifetime = new TransientLifetime();
var compileMode = CompileMode.Dynamic;
var reg = new ExpressionRegistration<IFoo>(container, expression, lifetime, compileMode);
Assert.AreEqual(reg.ReturnType, typeof(IFoo));
Assert.AreEqual(reg.CompileMode, compileMode);
//Assert.AreSame(reg.Expression, expression); // Is being converted to Expression<Func<IResolver, object>>
Assert.AreSame(reg.Lifetime, lifetime);
// Test GetInstance
var instance = reg.GetInstance();
Assert.IsInstanceOfType(instance, typeof(Foo1));
}
protected InstanceProducer CreateDecorateeFactoryProducer(
ParameterInfo parameter, InstanceProducer decorateeProducer)
{
// We create a dummy expression with a null value. Much easier than passing on the real delegate.
// We won't miss it, since the created InstanceProducer is just a dummy for purposes of analysis.
var dummyExpression = Expression.Constant(null, parameter.ParameterType);
var registration = new ExpressionRegistration(dummyExpression, this.Container);
var relationship = new KnownRelationship(
parameter.ParameterType, Lifestyle.Singleton, decorateeProducer)
{
// Make sure the relationship is not traversed when doing verification, because that leads to
// false positivies.
UseForVerification = false
};
registration.AddRelationship(relationship);
return(new InstanceProducer(parameter.ParameterType, registration));
}
public void ExpressionRegistrationWorksLikeExpected()
{
Expression <Func <IResolver, IFoo> > expression = x => new Foo1();
var container = new IocContainer();
var lifetime = new TransientLifetime();
var compileMode = CompileMode.Dynamic;
var reg = new ExpressionRegistration <IFoo>(container, expression, lifetime, compileMode);
Assert.AreEqual(reg.ReturnType, typeof(IFoo));
Assert.AreEqual(reg.CompileMode, compileMode);
//Assert.AreSame(reg.Expression, expression); // Is being converted to Expression<Func<IResolver, object>>
Assert.AreSame(reg.Lifetime, lifetime);
// Test GetInstance
var instance = reg.GetInstance();
Assert.IsInstanceOfType(instance, typeof(Foo1));
}
protected ServiceTypeDecoratorInfo GetServiceTypeInfo(Expression originalExpression,
InstanceProducer registeredProducer, Type registeredServiceType, Lifestyle lifestyle)
{
// registeredProducer.ServiceType and registeredServiceType are different when called by
// container uncontrolled decorator. producer.ServiceType will be IEnumerable<T> and
// registeredServiceType will be T.
Func <Type, InstanceProducer> producerBuilder = implementationType =>
{
// The InstanceProducer created here is used to do correct diagnostics. We can't return the
// registeredProducer here, since the lifestyle of the original producer can change after
// the ExpressionBuilt event has ran, which means that this would invalidate the diagnostic
// results.
var registration =
new ExpressionRegistration(originalExpression, implementationType, lifestyle, this.Container);
registration.ReplaceRelationships(registeredProducer.GetRelationships());
return(new InstanceProducer(registeredServiceType, registration));
};
return(this.GetServiceTypeInfo(originalExpression, registeredProducer, producerBuilder));
}
internal bool SatisfiesPredicate()
{
// We don't have an expression at this point, since the instances are not created by the container.
// Therefore we fake an expression so it can still be passed on to the predicate the user might
// have defined.
var expression = Expression.Constant(null, this.registeredServiceType);
var registration = new ExpressionRegistration(
expression, this.registeredServiceType, Lifestyle.Unknown, this.Container);
registration.ReplaceRelationships(this.e.InstanceProducer.GetRelationships());
var info = this.GetServiceTypeInfo(
this.e,
originalExpression: expression,
originalRegistration: registration,
registeredServiceType: this.registeredServiceType);
this.Context = this.CreatePredicateContext(this.registeredServiceType, expression, info);
return(this.SatisfiesPredicate(this.Context));
}
internal void ApplyDecorator()
{
var registration = new ExpressionRegistration(this.e.Expression, this.registeredServiceType,
Lifestyle.Unknown, this.Container);
registration.ReplaceRelationships(this.e.InstanceProducer.GetRelationships());
var serviceTypeInfo = this.GetServiceTypeInfo(this.e.Expression, this.e.InstanceProducer,
registration, this.registeredServiceType);
Registration decoratorRegistration;
var decoratedExpression = this.BuildDecoratorExpression(out decoratorRegistration);
this.e.Expression = decoratedExpression;
// Add the decorator to the list of applied decorator. This way users can use this
// information in the predicate of the next decorator they add.
serviceTypeInfo.AddAppliedDecorator(this.registeredServiceType, this.decoratorType,
this.Container, this.Lifestyle, decoratedExpression);
this.e.KnownRelationships.AddRange(decoratorRegistration.GetRelationships());
}
public void CachedLifetimeExtensionMethodThrowsExceptionIfPolicyParameterIsNull()
{
var container = new IocContainer();
var reg = new ExpressionRegistration<IFoo>(container, resolver => new Foo1(), new TransientLifetime());
LifetimeRegistrationExtensions.WithCachedLifetime(reg, null);
}
private Expression HandleMethodCall(Type type, object key = null)
{
// Split up this method ?
IRegistration registration;
if (!TryGetRegistration(type, key, out registration))
{
// Not able to find registration referenced.
// Could choose to ignore it and let it fail later when trying to Resolve if the type/key havent been added to the index inbetween then.
var exceptionDescription = "Cannot Compile Registration. The registration have a reference to Type: " + type.Name;
if (key != null)
exceptionDescription += " with Key: " + key;
exceptionDescription += " which isn't registered.";
// TODO: Throw CompileException or something ?
throw new RegistrationException(_currentRegistration, exceptionDescription);
}
// Only possible to compile ExpressionRegistration's
var expressionRegistration = registration as ExpressionRegistration;
if (expressionRegistration != null)
{
// Currently the Compiler only support compiling TransientLifetime's
if (expressionRegistration.Lifetime.GetType() == typeof(TransientLifetime)) // Check specific type incase something changes in the future and TransientLifetime is no longer sealed? in stead of using "is TransientLifetime"
{
// Keep visiting and try to inline the expression
// Recursive call until deepest nested ExpressionRegistration with TransientLifetime is found
// Change current registration to new registration which should be visited and save current for later
var current = _currentRegistration;
_currentRegistration = expressionRegistration;
// Visit
var expression = this.Visit(expressionRegistration.Expression.Body);
// Change it back again
_currentRegistration = current;
return expression;
}
}
return null;
}
private static InitializationContext CreateDummyInitializationContext()
{
var registration = new ExpressionRegistration(Expression.Constant(null), new Container());
return(new InitializationContext(new InstanceProducer(typeof(object), registration), registration));
}
public void ExpressionRegistrationThrowsExceptionIfLifetimeIsNull()
{
var reg = new ExpressionRegistration<object>(x => new object(), null);
}
public void ExpressionRegistrationThrowsExceptionIfResolverIsNull()
{
var reg = new ExpressionRegistration <object>(null, x => new object(), new TransientLifetime());
}
public void ExpressionRegistrationThrowsExceptionIfLifetimeIsNull()
{
var container = new IocContainer();
var reg = new ExpressionRegistration<object>(container, x => new object(), null);
}
public void ExpressionRegistrationThrowsExceptionIfExpressionIsNull()
{
var container = new IocContainer();
var reg = new ExpressionRegistration <object>(container, null, new TransientLifetime());
}
private static InitializerContext CreateDummyInitializationContext()
{
var registration = new ExpressionRegistration(Expression.Constant(null), new Container());
return(new InitializerContext(registration));
}
public void ExpressionRegistrationThrowsExceptionIfResolverIsNull()
{
var reg = new ExpressionRegistration<object>(null, x => new object(), new TransientLifetime());
}
public void ExpressionRegistrationThrowsExceptionIfExpressionIsNull()
{
var container = new IocContainer();
var reg = new ExpressionRegistration<object>(container, null, new TransientLifetime());
}
public void ExpressionRegistrationThrowsExceptionIfLifetimeIsNull()
{
var container = new IocContainer();
var reg = new ExpressionRegistration <object>(container, x => new object(), null);
}
public void ExpressionRegistrationThrowsExceptionIfExpressionIsNull()
{
var reg = new ExpressionRegistration<object>(null, new TransientLifetime());
}