Registering an Existing Instance?

[MattHoneycutt]

According to the docs, it should be possible to register an existing object when the type isn't known at compile time. The docs show this:

[Fact]
public void should_be_able_to_resolve_from_the_generic_family_expression()
{
    var widget = new AWidget();
    var container = new Container(x => x.For(typeof(IWidget)).Use(widget).Named("mine"));

    container.GetInstance<IWidget>("mine").ShouldBeTheSameAs(widget);
}

However, it looks like there isn't an overload of Use that will accept an instance. The exact code from the docs fails.

I also found this old issue (2020) that shows this was implemented: #233

Is there a different, preferred way to register an existing object when the type isn't compile-time constant?

[jeremydmiller]

Sorry, but I don't think that makes any sense to me. You could use AddSingleton(object), but it would be registered as that type. Not sure how that's useful