sealed.nonObject

Code example

<?php declare(strict_types = 1);

/**
 * @phpstan-sealed int
 */
class Foo
{
}

Why is it reported?

The @phpstan-sealed PHPDoc tag contains a non-object type such as int, string, or array. This tag is used to declare that a class or interface can only be extended or implemented by the listed types. Only class and interface names are valid in @phpstan-sealed because only objects can extend or implement other types.

How to fix it

Replace the non-object type with a valid class or interface name:

 /**
- * @phpstan-sealed int
+ * @phpstan-sealed ChildClass
  */
 class Foo
 {
 }

The @phpstan-sealed tag accepts one or more class/interface names, separated by |:

<?php declare(strict_types = 1);

/**
 * @phpstan-sealed ChildA|ChildB
 */
class Foo
{
}