When implementing an ObcJ protocol, how can you wo...

# ios

[phldavies]

When implementing an ObcJ protocol, how can you work around conflicting overloads? For example, implementing

override fun locationManager(manager: CLLocationManager, didEnterRegion: CLRegion) 
override fun locationManager(manager: CLLocationManager, didExitRegion: CLRegion)
override fun locationManager(manager: CLLocationManager, didStartMonitoringForRegion: CLRegion)

[ribesg]

I would also like to know this. I don’t need it yet, and hopefully I never need it because I don’t think it’s possible at all right now

[Thomas]

Add @Suppress("CONFLICTING_OVERLOADS") to your class and it will work. It should be documented somewhere as well.

[Thomas]

See: https://kotlinlang.org/docs/reference/native/objc_interop.html#subclassing-swiftobjective-c-classes-and-protocols-from-kotlin

[phldavies]

Perfect, thanks - I skimmed that a few days ago when starting out, but I obviously missed that.

[ribesg]

You can suppress errors? Nice

[louiscad]

You can also make the suppress string literal lowercase.

[ribesg]

I have follow up questions: how do I suppress this error and how do I know what the “code” is for errors to suppress them?

[Thomas]

I am not sure about your error. I haven't run into this situation yet.

[phldavies]

Have you tried adding an empty implementation for the referenced method (that returns Boolean) and suppressing the conflicting overloads?

[ribesg]

The IDE never suggests to suppress errors, only warnings, I’m asking for the way to know what to suppress (the error identifier)

[ribesg]

Like in this example, how to I know the code is CONFLICTING_OVERLOADS? Is there a list somewhere?

[ribesg]

I still don’t know how to suppress “return type is not a subtype...” I can’t find the identifier

[ribesg]

Found it RETURN_TYPE_MISMATCH_ON_OVERRIDE https://github.com/JetBrains/kotlin/blob/master/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/IdeErrorMessages.java