void fastPath() {
final Iterator<? extends T> a = iterator;
final Subscriber<? super T> s = actual;
for (; ; ) {
if (cancelled) {
return;
}
T t;
try {
t = a.next();
} catch (Exception ex) {
s.onError(ex);
return;
}
if (cancelled) {
return;
}
if (t == null) {
s.onError(new NullPointerException("The iterator returned a null value"));
return;
}
s.onNext(t);
if (cancelled) {
return;
}
boolean b;
try {
b = a.hasNext();
} catch (Exception ex) {
s.onError(ex);
return;
}
if (cancelled) {
return;
}
if (!b) {
s.onComplete();
return;
}
}
}
/**
* Common method to take an Iterator as a source of values.
*
* @param s
* @param it
*/
static <T> void subscribe(Subscriber<? super T> s, Iterator<? extends T> it) {
if (it == null) {
EmptySubscription.error(s, new NullPointerException("The iterator is null"));
return;
}
boolean b;
try {
b = it.hasNext();
} catch (Throwable e) {
EmptySubscription.error(s, e);
return;
}
if (!b) {
EmptySubscription.complete(s);
return;
}
s.onSubscribe(new PublisherIterableSubscription<>(s, it));
}
@Override
public boolean isTerminated() {
return !iterator.hasNext();
}
@Override
public boolean isStarted() {
return iterator.hasNext();
}
void slowPath(long n) {
final Iterator<? extends T> a = iterator;
final Subscriber<? super T> s = actual;
long e = 0L;
for (; ; ) {
while (e != n) {
T t;
try {
t = a.next();
} catch (Throwable ex) {
s.onError(ex);
return;
}
if (cancelled) {
return;
}
if (t == null) {
s.onError(new NullPointerException("The iterator returned a null value"));
return;
}
s.onNext(t);
if (cancelled) {
return;
}
boolean b;
try {
b = a.hasNext();
} catch (Throwable ex) {
s.onError(ex);
return;
}
if (cancelled) {
return;
}
if (!b) {
s.onComplete();
return;
}
e++;
}
n = requested;
if (n == e) {
n = REQUESTED.addAndGet(this, -e);
if (n == 0L) {
return;
}
e = 0L;
}
}
}