lockfile again

vendor/league/event/src/EmitterAwareTrait.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace League\Event;
+
+trait EmitterAwareTrait
+{
+    /**
+     * The emitter instance.
+     *
+     * @var EmitterInterface|null
+     */
+    protected $emitter;
+
+    /**
+     * Set the Emitter.
+     *
+     * @param EmitterInterface|null $emitter
+     *
+     * @return $this
+     */
+    public function setEmitter(?EmitterInterface $emitter = null)
+    {
+        $this->emitter = $emitter;
+
+        return $this;
+    }
+
+    /**
+     * Get the Emitter.
+     *
+     * @return EmitterInterface
+     */
+    public function getEmitter()
+    {
+        if (! $this->emitter) {
+            $this->emitter = new Emitter();
+        }
+
+        return $this->emitter;
+    }
+}