[11.x] Allow the authorize method to accept Backed Enums directly (#53330)

* Make it possible to use a BackedEnum for Authorization checks

* Use enum_value

Author: johanvanhelden

src/Illuminate/Foundation/Auth/Access/AuthorizesRequests.php

@@ -5,6 +5,8 @@
 use Illuminate\Contracts\Auth\Access\Gate;
 use Illuminate\Support\Str;
 
+use function Illuminate\Support\enum_value;
+
 trait AuthorizesRequests
 {
     /**
@@ -49,6 +51,8 @@ public function authorizeForUser($user, $ability, $arguments = [])
      */
     protected function parseAbilityAndArguments($ability, $arguments)
     {
+        $ability = enum_value($ability);
+
         if (is_string($ability) && ! str_contains($ability, '\\')) {
             return [$ability, $arguments];
         }

tests/Foundation/FoundationAuthorizesRequestsTraitTest.php

@@ -35,6 +35,24 @@ public function testBasicGateCheck()
         $this->assertTrue($_SERVER['_test.authorizes.trait']);
     }
 
+    public function testAcceptsBackedEnumAsAbility()
+    {
+        unset($_SERVER['_test.authorizes.trait.enum']);
+
+        $gate = $this->getBasicGate();
+
+        $gate->define('baz', function () {
+            $_SERVER['_test.authorizes.trait.enum'] = true;
+
+            return true;
+        });
+
+        $response = (new FoundationTestAuthorizeTraitClass)->authorize(TestAbility::BAZ);
+
+        $this->assertInstanceOf(Response::class, $response);
+        $this->assertTrue($_SERVER['_test.authorizes.trait.enum']);
+    }
+
     public function testExceptionIsThrownIfGateCheckFails()
     {
         $this->expectException(AuthorizationException::class);
@@ -163,3 +181,8 @@ public function store($object)
         $this->authorize($object);
     }
 }
+
+enum TestAbility: string
+{
+    case BAZ = 'baz';
+}