Support Laravel 8

.github/workflows/test.yml

@@ -10,12 +10,14 @@ jobs:
       fail-fast: false
       matrix:
         php: ['7.4']
-        laravel: ['^6.0', '^7.0']
+        laravel: ['^6.0', '^7.0', '^8.0']
         include:
           - laravel: '^6.0'
             testbench: '^4.0'
           - laravel: '^7.0'
             testbench: '^5.0'
+          - laravel: '^8.0'
+            testbench: '^6.0'
 
     steps:
       - uses: actions/checkout@v2

composer.json

@@ -13,10 +13,10 @@
     "prefer-stable": true,
     "require": {
         "php": "^7.4",
-        "laravel/framework": "^6.0|^7.0"
+        "laravel/framework": "^6.0|^7.0|^8.0"
     },
     "require-dev": {
-        "orchestra/testbench": "^4.0|^5.0",
+        "orchestra/testbench": "^4.0|^5.0|^6.0",
         "phpunit/phpunit": "^9.0"
     },
     "autoload": {

src/Concerns/DelegatesToDispatcher.php

@@ -7,11 +7,11 @@ trait DelegatesToDispatcher
     /**
      * Register an event listener with the dispatcher.
      *
-     * @param  string|array $events
-     * @param  mixed $listener
+     * @param  \Closure|string|array $events
+     * @param  \Closure|string|null $listener
      * @return void
      */
-    public function listen($events, $listener)
+    public function listen($events, $listener = null)
     {
         $this->dispatcher->listen($events, $listener);
     }