import static lombok.Yield.yield;
import java.lang.Iterable;
import java.util.List;
import lombok.Functions.Function1;
import lombok.val;
class YieldAndVal {
YieldAndVal() {
super();
}
public static @java.lang.SuppressWarnings("all") <S, T>Iterable<T> needsMoreVal(final Iterable<S> values, final Function1<S, List<T>> selector) {
class $YielderNeedsMoreVal implements java.util.Iterator<T>, java.lang.Iterable<T>, java.io.Closeable {
private S item;
private java.util.List<T> subItems;
private T subItem;
private @java.lang.SuppressWarnings("all") java.util.Iterator<S> $itemIter;
private @java.lang.SuppressWarnings("all") java.util.Iterator<T> $subItemIter;
private int $state;
private boolean $hasNext;
private boolean $nextDefined;
private T $next;
private $YielderNeedsMoreVal() {
super();
}
public java.util.Iterator<T> iterator() {
if (($state == 0))
{
$state = 1;
return this;
}
else
return new $YielderNeedsMoreVal();
}
public boolean hasNext() {
if ((! $nextDefined))
{
$hasNext = getNext();
$nextDefined = true;
}
return $hasNext;
}
public T next() {
if ((! hasNext()))
{
throw new java.util.NoSuchElementException();
}
$nextDefined = false;
return $next;
}
public void remove() {
throw new java.lang.UnsupportedOperationException();
}
public void close() {
$state = 4;
}
private boolean getNext() {
while (true) switch ($state) {
case 0 : ;
$state = 1;
case 1 : ;
$itemIter = values.iterator();
case 2 : ;
if ((! $itemIter.hasNext()))
{
$state = 4;
continue ;
}
item = $itemIter.next();
subItems = selector.apply(item);
if ((! (subItems != null)))
{
$state = 2;
continue ;
}
$subItemIter = subItems.iterator();
case 3 : ;
if ((! $subItemIter.hasNext()))
{
$state = 2;
continue ;
}
subItem = $subItemIter.next();
$next = subItem;
$state = 3;
return true;
case 4 : ;
default : ;
return false;
}
}
}
return new $YielderNeedsMoreVal();
}
}