requireExtends.nonObject

Code example

<?php declare(strict_types = 1);

/**
 * @phpstan-require-extends int
 */
trait MyTrait
{
}

Why is it reported?

The @phpstan-require-extends PHPDoc tag contains a non-object type. This tag is meant to restrict which classes can use the trait by requiring that they extend a specific class. It only makes sense with object (class) types, not scalar types like int, string, etc.

How to fix it

Use an object (class) type in the @phpstan-require-extends tag:

 <?php declare(strict_types = 1);

 /**
- * @phpstan-require-extends int
+ * @phpstan-require-extends SomeBaseClass
  */
 trait MyTrait
 {
 }