The trait bound `dbus::arg::Get` is not satisfied about dbus-rs

[diwic]

First, here's some code which is the bottom half of your first example, modified:

    let test: dbus::arg::Dict<&str, dbus::arg::Dict<&str, dbus::arg::Variant<dbus::arg::Iter>, _>, _> =
	response.get1().unwrap();

    for (k1, v1) in test {
	println!("outer key = {:?}", k1);
	for (k2, v2) in v1 {
	    println!("    inner key = {:?}, inner type = {:?}, string value = {:?}", k2, v2, v2.0.clone().get::<&str>());
	}
    }
}

You need to use Variant<Iter> if you don't know what's inside your variant when you get it. You will then have to use get::<&str>(), get::<u32>(), etc to retreive the actual value inside the variant.

[diwic]

I thought the whole point of Variant is that it can hold different types of data?

The Variant story is a bit tricky since Rust is so strongly typed. I'm working on using trait objects for better dynamics but I'm not sure I have arrived at the best design yet.

it prints out Dict(Iter("Unknown?!", "Unknown?!", "Unknown?!", "Unknown?!", "Unknown?!"), PhantomData). What is the Unknown?! value?

This is fixed in git master. It now prints Dict(Iter(DictEntry, DictEntry, DictEntry, DictEntry), PhantomData) instead (as many as there are dict entries).

[jbaldwinroberts]

Great, thank you! I knew I must of been missing something simple :)