also, does anybody else things its strange that `s...

# coroutines

[groostav]

also, does anybody else things its strange that select {} will simply abandon your coroutine?

@Test fun `using an empty select clause just abandons you`() = runBlocking {

        val producer = produce<String> {
            select<String> {
                val x = 4;
            }

            val y = 4;
        }

        val result = producer.receiveOrNull()

        val z = 4;
    }

never completes

[elizarov]

select {} (without clauses) will never resume. Just like suspendCoroutine {}. Conceptually, just like while (true) {}.

[elizarov]

We should have some kind of inspection or runtime exception, though

[groostav]

can you not set a flag in the registerSelectClause implementations, then throw an exception if that flag is not set?

[groostav]

also, I've got a java.lang.ClassCastException: ...ProducerCoroutine cannot be cast to ...SelectClause1 from a fairly innocuous code, i just reduced it a little, should I submit this to kotlinx.coroutines or youtrack/KT?

[groostav]

https://gist.github.com/Groostav/066c39cc5c33ce7c34d1c918e4705b29

[elizarov]

Please, file a bug to GitHub

[groostav]

https://github.com/Kotlin/kotlinx.coroutines/issues/448