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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Test\Support\EventDispatcher; |
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use Closure; |
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use Psr\EventDispatcher\EventDispatcherInterface; |
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use Psr\EventDispatcher\StoppableEventInterface; |
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use function get_class; |
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final class SimpleEventDispatcher implements EventDispatcherInterface |
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{ |
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/** @var array<int, Closure> */ |
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private array $listeners; |
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/** |
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* @var object[] |
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* @psalm-var list<object> |
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*/ |
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private array $events = []; |
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/** |
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* @param Closure ...$listeners Functions that will handle each event. |
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*/ |
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public function __construct(Closure ...$listeners) |
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{ |
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$this->listeners = $listeners; |
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} |
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public function dispatch(object $event): object |
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{ |
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$this->events[] = $event; |
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foreach ($this->listeners as $listener) { |
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if ($event instanceof StoppableEventInterface && $event->isPropagationStopped()) { |
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return $event; |
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} |
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$listener($event); |
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} |
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return $event; |
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} |
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/** |
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* @return object[] |
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* @psalm-return list<object> |
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*/ |
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public function getEvents(): array |
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{ |
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return $this->events; |
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} |
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/** |
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* @psalm-return list<class-string> |
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*/ |
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public function getEventClasses(): array |
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{ |
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return array_map('\get_class', $this->events); |
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} |
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public function clearEvents(): void |
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{ |
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$this->events = []; |
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} |
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public function isObjectTriggered(object $event, int $times = null): bool |
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{ |
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return $this->processBoolResult(static fn (object $e): bool => $e === $event, $times); |
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} |
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public function isClassTriggered(string $class, int $times = null): bool |
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{ |
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return $this->processBoolResult(static fn (object $event): bool => get_class($event) === $class, $times); |
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} |
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public function isInstanceOfTriggered(string $class, int $times = null): bool |
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{ |
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return $this->processBoolResult(static fn (object $event): bool => $event instanceof $class, $times); |
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} |
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private function processBoolResult(Closure $closure, ?int $times): bool |
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{ |
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if ($times < 0) { |
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throw new \InvalidArgumentException('The $times argument cannot be less than zero.'); |
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} |
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if ($times === null) { |
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return $this->hasEvent($closure); |
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} |
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return $times === $this->calcEvent($closure); |
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} |
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private function hasEvent(Closure $closure): bool |
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{ |
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foreach ($this->events as $event) { |
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if ($closure($event)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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private function calcEvent(Closure $closure): int |
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{ |
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$count = 0; |
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foreach ($this->events as $event) { |
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if ($closure($event)) { |
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++$count; |
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} |
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} |
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return $count; |
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} |
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} |
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yiisoft /
test-support
