Hello, can somebody explain me this? :face_with_ra...

# coroutines

[Davide Giuseppe Farella]

Hello, can somebody explain me this? 🤨
( Don’t mind about the typo 😄 )

[Dico]

Assuming isActive is from kotlinx.coroutines, it is because there is no Job element in your coroutine context.

[Dico]

If that's not it, I have no clue what I'm looking at and you need to provide better context

[Davide Giuseppe Farella]

What do you mean by

there is no Job element in your coroutine context

?

Putting a breakpoint outside of the object , below isEmpty it is true

[Dico]

There's not enough context to answer your question.

[Davide Giuseppe Farella]

https://bit.ly/3899ssj

[Davide Giuseppe Farella]

message has been deleted

[Dominaezzz]

Yes, the coroutineScope is finished when iterator returns, so it prints false.

[streetsofboston]

If you move the coroutineScope from the AnIterableClass#iterator() function and add it to the hasNext() function instead, you get what you expect

[Davide Giuseppe Farella]

Thank you guys, so which would be the correct way? 🤔

[Dominaezzz]

Depends on what you're trying to achieve but as a guess, I'd say you don't need the coroutineScope for the iterator at all, you can just do coroutineContext.isActive I think.

[Dominaezzz]

Or use Flow ....

[streetsofboston]

If you really need to use your own iterable and the isActive:

class AnIterableClass {
    operator fun iterator() = 
        object : SuspendIterable {
        	override suspend fun hasNext(): Boolean = coroutineScope {
                println("2 $isActive")
                false
        	}
    	}
    
}

The couroutineScope closure is moved to the hasNext. (and suspend has been removed from iterator).