// This method will be inlined by the JIT.
// Resets the validator to its initial state. This is important when a IInstanceProvider threw an
// exception, because a new call to that provider would otherwise make the validator think it is a
// recursive call and throw an exception, and this would hide the exception that would otherwise be
// thrown by the provider itself.
internal static void Reset(this CyclicDependencyValidator validator)
{
if (validator != null)
{
validator.RollBack();
}
}
internal static void CheckForRecursiveCalls(this CyclicDependencyValidator validator)
{
if (validator != null)
{
validator.Check();
}
}
internal InstanceProducer(Type serviceType, Registration registration, bool registerExternalProducer)
{
Requires.IsNotNull(serviceType, "serviceType");
Requires.IsNotNull(registration, "registration");
this.ServiceType = serviceType;
this.Registration = registration;
this.validator = new CyclicDependencyValidator(registration.ImplementationType);
this.lazyExpression = new Lazy<Expression>(this.BuildExpressionInternal);
this.initializationContext = new InitializationContext(this, registration);
if (registerExternalProducer)
{
registration.Container.RegisterExternalProducer(this);
}
}
private void RemoveValidator()
{
// No recursive calls detected, we can remove the validator to increase performance.
// We first check for null, because this is faster. Every time we write, the CPU has to send
// the new value to all the other CPUs. We only nullify the validator while using the GetInstance
// method, because the BuildExpression will only be called a limited amount of time.
if (this.validator != null)
{
this.validator = null;
}
}
internal InstanceProducer(Type serviceType, Registration registration, bool registerExternalProducer)
{
Requires.IsNotNull(serviceType, nameof(serviceType));
Requires.IsNotNull(registration, nameof(registration));
Requires.IsNotOpenGenericType(serviceType, nameof(serviceType));
this.ServiceType = serviceType;
this.Registration = registration;
this.validator = new CyclicDependencyValidator(registration.ImplementationType);
this.lazyExpression = new Lazy<Expression>(this.BuildExpressionInternal);
this.initializationContext = new InitializationContext(this, registration);
if (registerExternalProducer)
{
registration.Container.RegisterExternalProducer(this);
}
this.instanceCreator = this.BuildAndReplaceInstanceCreatorAndCreateFirstInstance;
}
