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<?php
namespace Laminas\EventManager;
use SplStack;
use function count;
/**
* Collection of signal handler return values
*/
class ResponseCollection extends SplStack
{
/** @var bool */
protected $stopped = false;
/**
* Did the last response provided trigger a short circuit of the stack?
*
* @return bool
*/
public function stopped()
{
return $this->stopped;
}
/**
* Mark the collection as stopped (or its opposite)
*
* @param bool $flag
*/
public function setStopped($flag)
{
$this->stopped = (bool) $flag;
}
/**
* Convenient access to the first handler return value.
*
* @return mixed The first handler return value
*/
public function first()
{
return parent::bottom();
}
/**
* Convenient access to the last handler return value.
*
* If the collection is empty, returns null. Otherwise, returns value
* returned by last handler.
*
* @return mixed The last handler return value
*/
public function last()
{
if (count($this) === 0) {
return;
}
return parent::top();
}
/**
* Check if any of the responses match the given value.
*
* @param mixed $value The value to look for among responses
* @return bool
*/
public function contains($value)
{
foreach ($this as $response) {
if ($response === $value) {
return true;
}
}
return false;
}
}