/**
* {@inheritdoc}
*/
public function cancel(Throwable $reason = null)
{
if (null === $reason) {
$reason = new TerminatedException();
}
if (null !== $this->generator) {
try {
do {
if ($this->current instanceof Awaitable) {
$this->current->cancel($reason);
}
$this->current = $this->generator->throw($reason);
} while ($this->generator->valid());
} catch (Throwable $exception) {
$reason = $exception;
}
}
parent::cancel($reason);
}
/**
* {@inheritdoc}
*/
public function cancel(Throwable $reason = null)
{
if (!$this->isPending()) {
return;
}
if (null === $reason) {
$reason = new TerminatedException();
}
parent::cancel($reason);
if ($this->current instanceof Awaitable) {
$this->current->cancel($reason);
// Will continue execution by throwing into the generator.
}
}
/**
* {@inheritdoc}
*/
public function cancel($reason = null)
{
if (null !== $this->generator) {
$current = $this->generator->current();
// Get last yielded value.
if ($current instanceof Awaitable) {
$current->cancel($reason);
// Cancel last yielded awaitable.
}
try {
$this->close();
// Throwing finally blocks in the Generator may cause close() to throw.
} catch (Throwable $exception) {
$reason = $exception;
}
}
parent::cancel($reason);
}
/**
* {@inheritdoc}
*/
public function cancel(Throwable $reason = null)
{
if (null === $reason) {
$reason = new TerminatedException();
}
if ($this->current instanceof Awaitable) {
$this->current->cancel($reason);
}
try {
$this->generator = null;
// finally blocks may throw from force-closed Generator.
} catch (Throwable $exception) {
$reason = $exception;
}
parent::cancel($reason);
}
