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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Event;
use const PHP_EOL;
use function array_key_exists;
use function dirname;
use function sprintf;
use function str_starts_with;
use Throwable;
/**
* @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
*
* @internal This class is not covered by the backward compatibility promise for PHPUnit
*/
final class DirectDispatcher implements SubscribableDispatcher
{
private readonly TypeMap $typeMap;
/**
* @psalm-var array<class-string, list<Subscriber>>
*/
private array $subscribers = [];
/**
* @psalm-var list<Tracer\Tracer>
*/
private array $tracers = [];
public function __construct(TypeMap $map)
{
$this->typeMap = $map;
}
public function registerTracer(Tracer\Tracer $tracer): void
{
$this->tracers[] = $tracer;
}
/**
* @throws MapError
* @throws UnknownSubscriberTypeException
*/
public function registerSubscriber(Subscriber $subscriber): void
{
if (!$this->typeMap->isKnownSubscriberType($subscriber)) {
throw new UnknownSubscriberTypeException(
sprintf(
'Subscriber "%s" does not implement any known interface - did you forget to register it?',
$subscriber::class,
),
);
}
$eventClassName = $this->typeMap->map($subscriber);
if (!array_key_exists($eventClassName, $this->subscribers)) {
$this->subscribers[$eventClassName] = [];
}
$this->subscribers[$eventClassName][] = $subscriber;
}
/**
* @throws Throwable
* @throws UnknownEventTypeException
*/
public function dispatch(Event $event): void
{
$eventClassName = $event::class;
if (!$this->typeMap->isKnownEventType($event)) {
throw new UnknownEventTypeException(
sprintf(
'Unknown event type "%s"',
$eventClassName,
),
);
}
foreach ($this->tracers as $tracer) {
try {
$tracer->trace($event);
// @codeCoverageIgnoreStart
} catch (Throwable $t) {
$this->handleThrowable($t);
}
// @codeCoverageIgnoreEnd
}
if (!array_key_exists($eventClassName, $this->subscribers)) {
return;
}
foreach ($this->subscribers[$eventClassName] as $subscriber) {
try {
$subscriber->notify($event);
} catch (Throwable $t) {
$this->handleThrowable($t);
}
}
}
/**
* @throws Throwable
*/
public function handleThrowable(Throwable $t): void
{
if ($this->isThrowableFromThirdPartySubscriber($t)) {
Facade::emitter()->testRunnerTriggeredWarning(
sprintf(
'Exception in third-party event subscriber: %s%s%s',
$t->getMessage(),
PHP_EOL,
$t->getTraceAsString(),
),
);
return;
}
// @codeCoverageIgnoreStart
throw $t;
// @codeCoverageIgnoreEnd
}
private function isThrowableFromThirdPartySubscriber(Throwable $t): bool
{
return !str_starts_with($t->getFile(), dirname(__DIR__, 2));
}
}
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