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Hi guys, I was playing with `withTimeout` function and I’ve noticed that if the block inside is not a suspending function, withTimeout simply does nothing.
Is that the expected behaviour? I know from the <https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/with-timeout.html|spec> it’s stated that the block is a suspending block. However I was expecting at least some error or warning if the block is not suspending. Anything I’m missing here?

withTimeout (or any cancellation of a coroutine) can only cancel a currently _suspending_ function. It cannot cancel a _blocking_ function.

yeah I got that and it makes sense. Problem is I believe it’s very error prone. I could figure this out thanks to unit tests since I was expecting a compilation error saying that the block is not suspending

The compiler wouldn't know that.... Blocking code is not marked as such... 

There is a lint warning for when you call code that throws an IOException in a Coroutine for which it is not immediately clear that its dispatcher is Dispatchers.IO.... often this warning is wrong and not very useful...

You can use `withTimeout` + `runInterruptible` if the blocking code is interruptible though.

that’s super <@U3ZLHBTLG> thanks for sharing