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vendor/php-flasher/flasher/EventDispatcher/EventDispatcher.php

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+<?php
+
+/*
+ * This file is part of the PHPFlasher package.
+ * (c) Younes KHOUBZA <younes.khoubza@gmail.com>
+ */
+
+namespace Flasher\Prime\EventDispatcher;
+
+use Flasher\Prime\EventDispatcher\Event\StoppableEventInterface;
+use Flasher\Prime\EventDispatcher\EventListener\AddToStorageListener;
+use Flasher\Prime\EventDispatcher\EventListener\EventSubscriberInterface;
+use Flasher\Prime\EventDispatcher\EventListener\RemoveListener;
+use Flasher\Prime\EventDispatcher\EventListener\StampsListener;
+
+final class EventDispatcher implements EventDispatcherInterface
+{
+    /**
+     * @var array<string, EventSubscriberInterface[]>
+     */
+    private $listeners = array();
+
+    public function __construct()
+    {
+        $this->addSubscriber(new RemoveListener());
+        $this->addSubscriber(new StampsListener());
+        $this->addSubscriber(new AddToStorageListener());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function dispatch($event)
+    {
+        $listeners = $this->getListeners(\get_class($event));
+
+        $this->callListeners($listeners, $event); // @phpstan-ignore-line
+
+        return $event;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function addListener($eventName, $listener)
+    {
+        $this->listeners[$eventName][] = $listener; // @phpstan-ignore-line
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function addSubscriber(EventSubscriberInterface $subscriber)
+    {
+        foreach ((array) $subscriber->getSubscribedEvents() as $eventName) {
+            $this->addListener($eventName, array($subscriber, '__invoke')); // @phpstan-ignore-line
+        }
+    }
+
+    /**
+     * @param string $eventName
+     *
+     * @return array<int, EventSubscriberInterface[]>
+     */
+    public function getListeners($eventName)
+    {
+        if (\array_key_exists($eventName, $this->listeners)) {
+            return $this->listeners[$eventName]; // @phpstan-ignore-line
+        }
+
+        return array();
+    }
+
+    /**
+     * @param callable[] $listeners
+     * @param object     $event
+     *
+     * @return void
+     */
+    private function callListeners(array $listeners, $event)
+    {
+        foreach ($listeners as $listener) {
+            if ($event instanceof StoppableEventInterface && $event->isPropagationStopped()) {
+                break;
+            }
+            \call_user_func($listener, $event);
+        }
+    }
+}