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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\EventDispatcher\Debug;
use Psr\EventDispatcher\StoppableEventInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\Stopwatch\Stopwatch;
use Symfony\Component\VarDumper\Caster\ClassStub;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
final class WrappedListener
{
private string|array|object $listener;
private ?\Closure $optimizedListener;
private string $name;
private bool $called = false;
private bool $stoppedPropagation = false;
private $stopwatch;
private $dispatcher;
private string $pretty;
private $stub;
private ?int $priority = null;
private static bool $hasClassStub;
public function __construct(callable|array $listener, ?string $name, Stopwatch $stopwatch, EventDispatcherInterface $dispatcher = null)
{
$this->listener = $listener;
$this->optimizedListener = $listener instanceof \Closure ? $listener : (\is_callable($listener) ? \Closure::fromCallable($listener) : null);
$this->stopwatch = $stopwatch;
$this->dispatcher = $dispatcher;
if (\is_array($listener)) {
$this->name = \is_object($listener[0]) ? get_debug_type($listener[0]) : $listener[0];
$this->pretty = $this->name.'::'.$listener[1];
} elseif ($listener instanceof \Closure) {
$r = new \ReflectionFunction($listener);
if (str_contains($r->name, '{closure}')) {
$this->pretty = $this->name = 'closure';
} elseif ($class = $r->getClosureScopeClass()) {
$this->name = $class->name;
$this->pretty = $this->name.'::'.$r->name;
} else {
$this->pretty = $this->name = $r->name;
}
} elseif (\is_string($listener)) {
$this->pretty = $this->name = $listener;
} else {
$this->name = get_debug_type($listener);
$this->pretty = $this->name.'::__invoke';
}
if (null !== $name) {
$this->name = $name;
}
self::$hasClassStub ??= class_exists(ClassStub::class);
}
public function getWrappedListener(): callable|array
{
return $this->listener;
}
public function wasCalled(): bool
{
return $this->called;
}
public function stoppedPropagation(): bool
{
return $this->stoppedPropagation;
}
public function getPretty(): string
{
return $this->pretty;
}
public function getInfo(string $eventName): array
{
$this->stub ??= self::$hasClassStub ? new ClassStub($this->pretty.'()', $this->listener) : $this->pretty.'()';
return [
'event' => $eventName,
'priority' => null !== $this->priority ? $this->priority : (null !== $this->dispatcher ? $this->dispatcher->getListenerPriority($eventName, $this->listener) : null),
'pretty' => $this->pretty,
'stub' => $this->stub,
];
}
public function __invoke(object $event, string $eventName, EventDispatcherInterface $dispatcher): void
{
$dispatcher = $this->dispatcher ?: $dispatcher;
$this->called = true;
$this->priority = $dispatcher->getListenerPriority($eventName, $this->listener);
$e = $this->stopwatch->start($this->name, 'event_listener');
($this->optimizedListener ?? $this->listener)($event, $eventName, $dispatcher);
if ($e->isStarted()) {
$e->stop();
}
if ($event instanceof StoppableEventInterface && $event->isPropagationStopped()) {
$this->stoppedPropagation = true;
}
}
}