I've got ```kotlin suspendCoroutine&lt...

# compiler

[reactormonk]

I've got

kotlin
            suspendCoroutine<Unit> { cont ->
                hdmiControlManager.playbackClient.oneTouchPlay { _ -> cont.resume(Unit) }
            }

And intellij tells me I can remove Unit here, but then it defaults to Int, and gives me a type error on the resume call (?)

[xoangon]

I would guess that the compiler is inferring the return type from something outside the scope of the snipped that you pasted. Is this code inside a lambda or a function? Can you add some more lines?

[reactormonk]

Full code:

kotlin
    private suspend fun acquireSource() {
        if (hdmiControlManager.playbackClient.activeSource != playbackDeviceInfo) {
            previousSource = PreviousSource.Source(hdmiControlManager.playbackClient.activeSource)
            suspendCoroutine<Unit> { cont ->
                hdmiControlManager.playbackClient.oneTouchPlay { _ -> cont.resume(Unit) }
            }
        } else {
            Log.d(TAG, "Already on our hdmi source ${hdmiControlManager.playbackClient.activeSource}, not switching")
        }
    }

[xoangon]

There’s nothing in the outer scope that should interfere with the type inference. It’s pretty strange

[reactormonk]

Welcome to my life, I'm designated compiler tester ^^

[dmitriy.novozhilov]

Please report an issue to kotl.in/issue about it

[reactormonk]

Are you sure it's gonna be helpful? For reproduction, you'll need an Android project, and the hidden API jar

[reactormonk]

https://youtrack.jetbrains.com/issue/KT-60871/Int-is-inferred-as-return-type-for-suspendCoroutine-instead-of-Unit
Reproduced it here

[dmitriy.novozhilov]

Thank you!

[dmitriy.novozhilov]

Could you please add to the ticket declarations which are used in the snippet?
At least types of function and properties
Otherwise it will be hard to reproduce

[reactormonk]

Done