Infection crashes when using PHP 8.1 reserved keywords as enum cases

[ABSAhmad]

Question	Answer
Infection version	0.26.3
Test Framework version	PHPUnit 9.5.11
PHP version	8.1.1
Platform	php:8.1-fpm Dockerimage
Github Repo	-

When using a PHP 8.1 enum with a reserved keyword e.g. empty as a case, infection will crash.

Error message:

In UnparsableFile.php line 13: Could not parse the file "[removed]/DepotState.php". Check if it is a valid PHP file                                                                                   

In ParserAbstract.php line 161: Syntax error, unexpected T_EMPTY, expecting T_STRING on line 9  

Enum example:

enum DepotState : string
{
    case empty = 'empty';
    
    public static function fromLabel(string $stateCode): ?self
    {
        return match ($stateCode) {
            '00' => self::empty,
            default => null
        };
    }
}

As far as I can tell, this is an issue with the nikic/PHP-Parser package but has been fixed in version 4.13.1.

See: nikic/PHP-Parser#807

Can I just create a PR updating the PHP parser package or is there something I should pay attention to/take care of?

[maks-rafalko]

Am I right that you are using PHAR?

Released https://github.com/infection/infection/releases/tag/0.26.4

[ABSAhmad]

Yes, sorry for not including that information.

Many thanks for the quick fix and release. This solved the issue :)

[maks-rafalko]

Thank you @ABSAhmad for sponsoring us!