requireImplements.deprecatedInterface - Phpstan

Code example

php

<?php declare(strict_types = 1);

/** @deprecated */
interface OldInterface {}

/**
 * @phpstan-require-implements OldInterface
 */
trait MyTrait {}

Why is it reported?

The @phpstan-require-implements PHPDoc tag references an interface that has been marked as @deprecated. Using deprecated interfaces in new constraints means your code is relying on functionality that is planned for removal in a future version.

This rule is provided by the phpstan-deprecation-rules package.

How to fix it

Replace the deprecated interface with its recommended replacement:

diff-php

 <?php declare(strict_types = 1);

 /**
- * @phpstan-require-implements OldInterface
+ * @phpstan-require-implements NewInterface
  */
 trait MyTrait {}

If no replacement exists, remove the @phpstan-require-implements tag if the constraint is no longer needed:

diff-php

 <?php declare(strict_types = 1);

-/**
- * @phpstan-require-implements OldInterface
- */
 trait MyTrait {}