I am experiencing some warnings that can be solved if you update coroutines to stable version.

Will the firebase listener ever be closed/discarded if I stop using the Channel returned from the Query.observe extension function?

Using DocumentReference.await(parser:): T causes problems on documents that does not exist. I expect the coroutine to resume with an exception, but it resumes and force unwraps the result in the parser, even when the result is a document that does not exist (e.g an empty reference). Please fix this issue, as is makes the await(parser:) function not able to be used for checking whether or not a document needs to be created at the specified location.

Suggested fix

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suspend fun DocumentReference.await(parser: (documentSnapshot: DocumentSnapshot) -> T): T {
return suspendCoroutine { continuation ->
get().addOnCompleteListener {

            if (it.isSuccessful && it.result != null && it.result!!.exists()) {
                continuation.resume(parser.invoke(it.result!!))
            } else if (it.isSuccessful && it.result != null && !it.result!!.exists()) {
                continuation.resumeWithException(DocumentDoesNotExistsException())
            } else if (it.exception != null){
                continuation.resumeWithException(it.exception!!)
            } else {
                continuation.resumeWithException(EmptyStackException())
            }
        }
    }
}

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