Accessing actor properties via Dependency KeyPaths

[jayhickey]

Would it be possible to provide async KeyPath access to actor properties? I know I can @Dependency the entire actor and then await to access the property, but it would be nice to narrowly scope my dependency access to just the property I need. For example:

// ❌ Cannot form key path to actor-isolated property 'myActorProperty'
@Dependency(\.myActor.myActorProperty) var myProperty

Even if it wasn't possible to do with dependency properties it would be useful for inline @Dependency access.

Thanks!

[mbrandonw]

Hi @jayhickey, I don't think this is possible for a number of reasons, e.g. neither key paths nor property wrappers are well integrate with async.

However, it's possible to use actors for dependencies (and encouraged) without literally making your dependency an actor. You can just use one on the inside of the live implementation. We have an example of this in our standups demo (SpeechClient) and we have a few examples over in isowords.

[jayhickey]

Thanks for this info @mbrandonw! I had a feeling there was probably a limitation here. Wrapping the actor sounds like a reasonable workaround, thanks for this!