<?php

namespace FG\ASN1\Universal;

use FG\ASN1\ASN1Object;
use FG\ASN1\ContentLength;
use FG\ASN1\ElementBuilder;
use FG\ASN1\Exception\ParserException;
use FG\ASN1\Identifier;

class NullObject extends ASN1Object
{
    public function __toString(): string
    {
        return 'null';
    }

    public static function encodeValue($value)
    {
        return '';
    }

    /**
     * @return self
     */
    public static function create()
    {
        $isConstructed = false;
        $lengthForm    = ContentLength::SHORT_FORM;

        return
            ElementBuilder::createObject(
                Identifier::CLASS_UNIVERSAL,
                Identifier::NULL,
                $isConstructed,
                null,
                $lengthForm
            );
    }

    /**
     * {@inheritdoc}
     * @return self
     */
    public static function fromBinary(&$binaryData, &$offsetIndex = 0)
    {
        $nullObject = parent::fromBinary($binaryData, $offsetIndex);

        $contentLength = $nullObject->getContentLength()->getLength();

        if ($contentLength !== 0) {
            throw new ParserException(
                sprintf(
                    'An ASN.1 Null should not have a length other than zero. Extracted length was %d',
                    $contentLength
                ),
                $offsetIndex
            );
        }

        return $nullObject;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODI5MTQwMzA1OTYyOTE3OSA4NzE5MjcwNjgzMjI5NjI2IDUzOTc1MTkxMTc0NTE5MDE=