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Error Identifier: staticMethod.internalEnum

← Back to staticMethod.*

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);

namespace Vendor {
	/** @internal */
	enum InternalStatus: string {
		case Active = 'active';

		public static function default(): self {
			return self::Active;
		}
	}
}

namespace App {
	function test(): void {
		\Vendor\InternalStatus::default(); // error: Call to static method default() of internal enum Vendor\InternalStatus from outside its root namespace Vendor.
	}
}

Why is it reported? #

A static method is being called on an enum that is marked as @internal. Internal enums are not part of the public API of the package that defines them and may change or be removed without notice. Calling static methods on them creates a dependency on implementation details.

How to fix it #

Use the public API of the package instead of calling static methods on internal enums:

 namespace App {
 	function test(): void {
-		\Vendor\InternalStatus::default();
+		\Vendor\PublicStatus::default();
 	}
 }

If the enum is internal to your own project and the usage is within the same root namespace, the error will not be reported.

How to ignore this error #

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

// @phpstan-ignore staticMethod.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: staticMethod.internalEnum

Rules that report this error #

  • PHPStan\Rules\InternalTag\RestrictedInternalClassNameUsageExtension [1]
  • PHPStan\Rules\InternalTag\RestrictedInternalMethodUsageExtension [1] [2]
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