class ExpressionSyntax

class ExpressionSyntax extends Constraint {
    public const EXPRESSION_SYNTAX_ERROR = 'e219aa22-8b11-48ec-81a0-fc07cdb0e13f';
    protected const ERROR_NAMES = [
        self::EXPRESSION_SYNTAX_ERROR => 'EXPRESSION_SYNTAX_ERROR',
    ];
    public string $message = 'This value should be a valid expression.';
    public ?string $service = null;
    public ?array $allowedVariables = null;
    
    /**
     * @param array<string,mixed>|null $options
     * @param non-empty-string|null    $service          The service used to validate the constraint instead of the default one
     * @param string[]|null            $allowedVariables Restrict the available variables in the expression to these values (defaults to null that allows any variable)
     * @param string[]|null            $groups
     */
    public function __construct(?array $options = null, ?string $message = null, ?string $service = null, ?array $allowedVariables = null, ?array $groups = null, mixed $payload = null) {
        parent::__construct($options, $groups, $payload);
        $this->message = $message ?? $this->message;
        $this->service = $service ?? $this->service;
        $this->allowedVariables = $allowedVariables ?? $this->allowedVariables;
    }
    public function validatedBy() : string {
        return $this->service ?? static::class . 'Validator';
    }

}