NullType::_decodeFromDER() - Code Metrics - sop/asn1 - Measure and Improve Code Quality continuously with Scrutinizer

NullType::_decodeFromDER() A
last analyzed 2025-01-08 14:01 UTC

↳ Parent: NullType

Complexity

Conditions	2
Paths	2

Size

Total Lines	11
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	2

Importance

Changes

Metric	Value
cc	2
eloc	6
nc	2
nop	3
dl	0
loc	11
ccs	7
cts	7
cp	1
crap	2
rs	10
c	0
b	0
f	0

<?php

declare(strict_types = 1);

namespace Sop\ASN1\Type\Primitive;

use Sop\ASN1\Component\Identifier;
use Sop\ASN1\Component\Length;
use Sop\ASN1\Element;
use Sop\ASN1\Exception\DecodeException;
use Sop\ASN1\Feature\ElementBase;
use Sop\ASN1\Type\PrimitiveType;
use Sop\ASN1\Type\UniversalClass;

/**
 * Implements *NULL* type.
 */
class NullType extends Element
{
    use UniversalClass;
    use PrimitiveType;

    /**
     * Constructor.
     */
    public function __construct()
    {
        $this->_typeTag = self::TYPE_NULL;
    }

    /**
     * {@inheritdoc}
     */
    protected function _encodedContentDER(): string
    {
        return '';
    }

    /**
     * {@inheritdoc}
     */
    protected static function _decodeFromDER(Identifier $identifier,
        string $data, int &$offset): ElementBase
    {
        $idx = $offset;
        if (!$identifier->isPrimitive()) {
            throw new DecodeException('Null value must be primitive.');
        }
        // null type has always zero length
        Length::expectFromDER($data, $idx, 0);
        $offset = $idx;
        return new self();
    }
}


1		<?php
2
3		declare(strict_types = 1);
4
5		namespace Sop\ASN1\Type\Primitive;
6
7		use Sop\ASN1\Component\Identifier;
8		use Sop\ASN1\Component\Length;
9		use Sop\ASN1\Element;
10		use Sop\ASN1\Exception\DecodeException;
11		use Sop\ASN1\Feature\ElementBase;
12		use Sop\ASN1\Type\PrimitiveType;
13		use Sop\ASN1\Type\UniversalClass;
14
15		/**
16		* Implements NULL type.
17		*/
18		class NullType extends Element
19		{
20		use UniversalClass;
21		use PrimitiveType;
22
23		/**
24		* Constructor.
25		*/
26	112	public function __construct()
27		{
28	112	$this->_typeTag = self::TYPE_NULL;
29	112	}
30
31		/**
32		* {@inheritdoc}
33		*/
34	19	protected function _encodedContentDER(): string
35		{
36	19	return '';
37		}
38
39		/**
40		* {@inheritdoc}
41		*/
42	29	protected static function _decodeFromDER(Identifier $identifier,
43		string $data, int &$offset): ElementBase
44		{
45	29	$idx = $offset;
46	29	if (!$identifier->isPrimitive()) {
47	1	throw new DecodeException('Null value must be primitive.');
48		}
49		// null type has always zero length
50	28	Length::expectFromDER($data, $idx, 0);
51	27	$offset = $idx;
52	27	return new self();
53		}
54		}
55

sop / asn1

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NullType::_decodeFromDER() A last analyzed 2025-01-08 14:01 UTC

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NullType::_decodeFromDER() A
last analyzed 2025-01-08 14:01 UTC