Error Identifier: requireExtends.internalEnum

Every error reported by PHPStan has an error identifier. Here’s a list of all error identifiers. In PHPStan Pro you can see the error identifier next to each error and filter errors by their identifiers.

Code example #

<?php declare(strict_types = 1);

// In package vendor/some-library:

namespace SomeLibrary;

/** @internal */
enum InternalEnum
{
	case A;
}

<?php declare(strict_types = 1);

// In your code:

namespace App;

use SomeLibrary\InternalEnum;

/**
 * @phpstan-require-extends InternalEnum
 */
interface MyInterface
{
}

Why is it reported? #

A @phpstan-require-extends PHPDoc tag references an enum that is marked as @internal. Internal types are not part of the package’s public API and may change or be removed without notice.

How to fix it #

Use a public (non-internal) type in the @phpstan-require-extends tag instead. If no public alternative exists, consider reaching out to the package maintainers to request a public API for your use case.

How to ignore this error #

You can use the identifier requireExtends.internalEnum to ignore this error using a comment:

// @phpstan-ignore requireExtends.internalEnum
codeThatProducesTheError();

You can also use only the identifier key to ignore all errors of the same type in your configuration file in the ignoreErrors parameter:

parameters:
	ignoreErrors:
		-
			identifier: requireExtends.internalEnum

Rules that report this error #

PHPStan\Rules\InternalTag\RestrictedInternalClassNameUsageExtension [1]

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