// when registering an unbound target, we also automatically register
// a projection for the delegate type which is fed by an enumerable of the return
// type of the delegate. So IEnumerable<Func<Foo>> <== IEnumerable<Foo>
void INotifyRegistrationTarget.OnRegistration(IRootTargetContainer root, Type registeredType)
{
if (this.BoundTarget == null)
{
root.RegisterProjection(ReturnType, registeredType, CreateTarget);
}
AutoFactoryTarget CreateTarget(IRootTargetContainer root2, ITarget source) => new AutoFactoryTarget(registeredType, ReturnType, ParameterTypes, source);
}