/**
* Check if the given emitter has the provided event listener.
*
* @param EmitterInterface $emitter Emitter to search
* @param string|object $value Can be a class name or listener object
* @param null $event Specific event to search (optional)
*
* @return bool
*/
public static function hasListener(EmitterInterface $emitter, $value, $event = null)
{
$expression = $event ? '[*][0]' : '*[*][0]';
$listeners = $event ? $emitter->listeners($event) : $emitter->listeners();
$result = JmesPath::search($expression, $listeners) ?: [];
if (!is_object($value)) {
$result = array_map(function ($o) {
return get_class($o);
}, $result);
}
return in_array($value, $result, true);
}
public static function _apply_validate($value, array &$args, EmitterInterface $em)
{
if ($value === true) {
$em->attach(new Validation($args['api'], new Validator()));
}
}
