改名

System/Events/EventProvider.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Snowflake\Events;
+
+
+/**
+ *
+ */
+class EventProvider implements EventProviders
+{
+
+	/** @var Struct[] */
+	private array $_listeners = [];
+
+
+	/**
+	 * @param object $event
+	 * @return iterable
+	 */
+	public function getListenersForEvent(object $event): iterable
+	{
+		$queue = new \SplPriorityQueue();
+		// TODO: Implement getListenersForEvent() method.
+		foreach ($this->_listeners as $listener) {
+			if (!($event instanceof $listener->event)) {
+				continue;
+			}
+			$queue->insert($listener, $listener->priority);
+		}
+		return $queue;
+	}
+
+
+	/**
+	 * @param string $event
+	 * @param callable $handler
+	 * @param int $zOrder
+	 */
+	public function on(string $event, callable $handler, int $zOrder = 1)
+	{
+		$this->_listeners[$event][] = new Struct($event, $handler, $zOrder);
+	}
+
+
+}