[10.x] Adds support for parse callbacks from anonymous classes (#49432)

* Adds support for anonymous classes callbacks

* Apply fixes from StyleCI

---------

Co-authored-by: StyleCI Bot <[email protected]>

Author: nunomaduro

src/Illuminate/Support/Str.php

@@ -810,6 +810,17 @@ public static function padRight($value, $length, $pad = ' ')
      */
     public static function parseCallback($callback, $default = null)
     {
+        if (static::contains($callback, "@anonymous\0")) {
+            if (static::substrCount($callback, '@') > 1) {
+                return [
+                    static::beforeLast($callback, '@'),
+                    static::afterLast($callback, '@'),
+                ];
+            }
+
+            return [$callback, $default];
+        }
+
         return static::contains($callback, '@') ? explode('@', $callback, 2) : [$callback, $default];
     }
 

tests/Support/SupportStrTest.php

@@ -328,9 +328,15 @@ public function testConvertCase()
 
     public function testParseCallback()
     {
+        $this->assertEquals(['Class', 'method'], Str::parseCallback('Class@method'));
         $this->assertEquals(['Class', 'method'], Str::parseCallback('Class@method', 'foo'));
         $this->assertEquals(['Class', 'foo'], Str::parseCallback('Class', 'foo'));
         $this->assertEquals(['Class', null], Str::parseCallback('Class'));
+
+        $this->assertEquals(["Class@anonymous\0/laravel/382.php:8$2ec", 'method'], Str::parseCallback("Class@anonymous\0/laravel/382.php:8$2ec@method"));
+        $this->assertEquals(["Class@anonymous\0/laravel/382.php:8$2ec", 'method'], Str::parseCallback("Class@anonymous\0/laravel/382.php:8$2ec@method", 'foo'));
+        $this->assertEquals(["Class@anonymous\0/laravel/382.php:8$2ec", 'foo'], Str::parseCallback("Class@anonymous\0/laravel/382.php:8$2ec", 'foo'));
+        $this->assertEquals(["Class@anonymous\0/laravel/382.php:8$2ec", null], Str::parseCallback("Class@anonymous\0/laravel/382.php:8$2ec"));
     }
 
     public function testSlug()