/**
* Process an event chain.
*
* @param array $chain
* @param EventCollection $events
* @param string $type
* @param object|null $target
*
* @throws \Exception, the exception of the event hook.
*/
private function process_chain(array $chain, EventCollection $events, $type, $target)
{
foreach ($chain as $hook) {
$started_at = microtime(true);
try {
call_user_func($hook, $this, $target);
} catch (\Exception $e) {
throw $e;
} finally {
$this->used_by[] = [$hook, $started_at, microtime(true)];
EventProfiler::add_call($type, $events->resolve_original_hook($hook), $started_at);
}
if ($this->stopped) {
return;
}
}
}
/**
* Detaches the event hook from the events.
*/
public function detach()
{
$this->events->detach($this->type, $this->hook);
}