Unity framework DependencyAttribute only works for public properties?

Question

I was trying to clean up some accessability stuff in my code, and inadvertently broke Unity dependency injection. After a while I realized that I marked some public properties t

Answer 1

Well after a lof of poking around in reflector, I figured this out. By default, the code that finds a constructor for constructor injection calls:

ConstructorInfo[] constructors = typeToConstruct.GetConstructors()

With no BindingFlags, that will only detect public constructors. With some trickery (as in copy/paste from reflector) you can make a UnityContainerExtension that does all the same stuff as the default implementation, but change the call to GetConstructors() to:

ConstructorInfo[] constructors = typeToConstruct..GetConstructors(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)

Then add the extension into the unity container. The implemented extenstion is ~100 lines of code, so I didn't paste it here. If anyone wants it, let me know...

New working test case. Note that all the Unity created classes are now internal:

[TestFixture]
public class UnityFixture
{
    [Test]
    public void UnityCanSetInternalDependency()
    {
        UnityContainer container = new UnityContainer();
        container.AddNewExtension();
        container.RegisterType();
        container.RegisterType();

        var i = container.Resolve();
        Assert.IsNotNull(i);
        Assert.IsNotNull(i.dep);
    }
}


internal class HasInternalDep
{
    internal HasInternalDep(TheDep dep)
    {
        this.dep = dep;
    }

    internal TheDep dep { get; set; }
}

internal class TheDep
{
}

I'm sure I can make an extension to do the same to resolve non-public properties, but that code was a lot more complicated :)