Type the callback for Relation::noConstraints (#54572)

Author: simon-tma

src/Illuminate/Database/Eloquent/Relations/Relation.php

@@ -102,8 +102,10 @@ public function __construct(Builder $query, Model $parent)
     /**
      * Run a callback with constraints disabled on the relation.
      *
-     * @param  \Closure  $callback
-     * @return mixed
+     * @template TReturn of mixed
+     *
+     * @param  Closure(): TReturn  $callback
+     * @return TReturn
      */
     public static function noConstraints(Closure $callback)
     {

types/Database/Eloquent/Relations.php

@@ -13,6 +13,7 @@
 use Illuminate\Database\Eloquent\Relations\MorphOne;
 use Illuminate\Database\Eloquent\Relations\MorphTo;
 use Illuminate\Database\Eloquent\Relations\MorphToMany;
+use Illuminate\Database\Eloquent\Relations\Relation;
 
 use function PHPStan\Testing\assertType;
 
@@ -123,6 +124,8 @@ function test(User $user, Post $post, Comment $comment, ChildUser $child): void
 
     assertType('Illuminate\Database\Eloquent\Relations\MorphToMany<Illuminate\Types\Relations\Tag, Illuminate\Types\Relations\Post>', $post->tags());
     assertType('Illuminate\Database\Eloquent\Collection<int, Illuminate\Types\Relations\Tag>', $post->tags()->getResults());
+
+    assertType('42', Relation::noConstraints(fn () => 42));
 }
 
 class User extends Model