update to 2.5.0-b2 (build 409)

src/ZM/Event/EventTracer.php

@@ -0,0 +1,45 @@
+<?php
+
+
+namespace ZM\Event;
+
+
+use ZM\Annotation\AnnotationBase;
+
+class EventTracer
+{
+    /**
+     * 获取当前注解事件的注解类，如CQCommand对象
+     * @return AnnotationBase|null
+     */
+    public static function getCurrentEvent() {
+        $list = debug_backtrace();
+        foreach ($list as $v) {
+            if ((($v["object"] ?? null) instanceof EventDispatcher) && $v["function"] == "dispatchEvent") {
+                return $v["args"][0];
+            }
+        }
+        return null;
+    }
+
+    /**
+     * 获取当前注解事件的中间件列表
+     * @return array|mixed|null
+     */
+    public static function getCurrentEventMiddlewares() {
+        $current_event = self::getCurrentEvent();
+        if (!isset($current_event->class, $current_event->method)) return null;
+        return EventManager::$middleware_map[$current_event->class][$current_event->method] ?? [];
+    }
+
+    public static function getEventTraceList() {
+        $result = [];
+        $list = debug_backtrace();
+        foreach ($list as $v) {
+            if ((($v["object"] ?? null) instanceof EventDispatcher) && $v["function"] == "dispatchEvent") {
+                $result[] = $v["args"][0];
+            }
+        }
+        return $result;
+    }
+}