So this code wouldn't even do the thing I had plan...

# announcements

[Kroppeb]

So this code wouldn't even do the thing I had planned, but still. Why is it asking for a return statement? Any code below this line should be marked as unreachable. The right part of the assignment returns Nothing. This doesn't happen if assigned to a new var/val

[louiscad]

Because an assignment is a statement, not an expression. You don't always throw as far as the compiler can see.

[Kroppeb]

What do you mean?

[louiscad]

I mean that your code is wrong, it's intended behavior that compiler tells you there's an error.

[louiscad]

The body of your override doesn't evaluate to the Nothing type.

[louis993546]

override fun next(): T {
	val currNext = curr.next
	if (currNext == null) {
		throw NoSuchElementException()	// <- "returns" a value. This is OK
	} else {
		curr = currNext					// <- this is just a statement
	}
}

[louis993546]

because the return in return it.value is not actually to next(), but the closure of let {}

[Kroppeb]

yes it is

[Kroppeb]

If you store the returned value in a new val without an explicit type it notices