Bitmask::deleteMask() - Code Metrics - Inspection of "PHP 7 support." - Aliance/Bitmask - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#4)

by Lesnykh

created 2017-02-06 09:52 UTC

Bitmask::deleteMask() A

↳ Parent: Bitmask

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	5
ccs	0
cts	3
cp	0
rs	9.4285
cc	1
eloc	3
nc	1
nop	1
crap	2

<?php
namespace Aliance\Bitmask;

/**
 * Simple bitmask implementation.
 * Supports only 63 bits (from 0 to 62) on x64 platforms.
 */
class Bitmask
{
    /**
     * @var int
     */
    const MAX_BIT = 62;

    /**
     * @var int
     */
    private $mask;

    /**
     * @param int $mask
     */
    public function __construct(int $mask = 0)
    {
        $this->setMask($mask);
    }

    /**
     * @param int $mask
     * @return $this
     */
    public static function create(int $mask = 0)
    {
        return new self($mask);
    }

    /**
     * @param int $bit
     * @return $this
     */
    public function setBit(int $bit)
    {
        return $this->addMask(1 << $this->checkBit($bit));
    }

    /**
     * @param int $mask
     * @return $this
     */
    public function addMask(int $mask)
    {
        $this->mask |= $mask;
        return $this;
    }

    /**
     * @param int $bit
     * @return int
     * @throws \InvalidArgumentException
     */
    private function checkBit(int $bit): int
    {
        if ($bit > self::MAX_BIT) {
            throw new \InvalidArgumentException(sprintf(
                'Bit number %d is greater than possible limit %d.',
                $bit,
                self::MAX_BIT
            ));
        }
        return $bit;
    }

    /**
     * @param int $bit
     * @return $this
     */
    public function unsetBit(int $bit)
    {
        return $this->deleteMask(1 << $this->checkBit($bit));
    }

    /**
     * @param int $mask
     * @return $this
     */
    public function deleteMask(int $mask)
    {
        $this->mask &= ~$mask;
        return $this;
    }

    /**
     * @param int $bit
     * @return bool
     */
    public function issetBit(int $bit): bool
    {
        return (bool)($this->getMask() & (1 << $this->checkBit($bit)));
    }

    /**
     * @return int
     */
    public function getMask(): int
    {
        return $this->mask;
    }

    /**
     * @param int $mask
     * @return $this
     */
    public function setMask(int $mask)
    {
        $this->mask = (int)$mask;
        return $this;
    }

    /**
     * Return set bits count.
     * Actually, counts the number of 1 in binary representation of the decimal mask integer.
     * @return int
     */
    public function getSetBitsCount(): int
    {
        return substr_count(decbin($this->mask), '1');
    }
}


1			<?php
2			namespace Aliance\Bitmask;
3
4			/**
5			* Simple bitmask implementation.
6			* Supports only 63 bits (from 0 to 62) on x64 platforms.
7			*/
8			class Bitmask
9			{
10			/**
11			* @var int
12			*/
13			const MAX_BIT = 62;
14
15			/**
16			* @var int
17			*/
18			private $mask;
19
20			/**
21			* @param int $mask
22			*/
23			public function __construct(int $mask = 0)
24			{
25			$this->setMask($mask);
26			}
27
28			/**
29			* @param int $mask
30			* @return $this
31			*/
32			public static function create(int $mask = 0)
33			{
34			return new self($mask);
35			}
36
37			/**
38			* @param int $bit
39			* @return $this
40			*/
41			public function setBit(int $bit)
42			{
43			return $this->addMask(1 << $this->checkBit($bit));
44			}
45
46			/**
47			* @param int $mask
48			* @return $this
49			*/
50			public function addMask(int $mask)
51			{
52			$this->mask \|= $mask;
53			return $this;
54			}
55
56			/**
57			* @param int $bit
58			* @return int
59			* @throws \InvalidArgumentException
60			*/
61			private function checkBit(int $bit): int
62			{
63			if ($bit > self::MAX_BIT) {
64			throw new \InvalidArgumentException(sprintf(
65			'Bit number %d is greater than possible limit %d.',
66			$bit,
67			self::MAX_BIT
68			));
69			}
70			return $bit;
71			}
72
73			/**
74			* @param int $bit
75			* @return $this
76			*/
77			public function unsetBit(int $bit)
78			{
79			return $this->deleteMask(1 << $this->checkBit($bit));
80			}
81
82			/**
83			* @param int $mask
84			* @return $this
85			*/
86			public function deleteMask(int $mask)
87			{
88			$this->mask &= ~$mask;
89			return $this;
90			}
91
92			/**
93			* @param int $bit
94			* @return bool
95			*/
96			public function issetBit(int $bit): bool
97			{
98			return (bool)($this->getMask() & (1 << $this->checkBit($bit)));
99			}
100
101			/**
102			* @return int
103			*/
104			public function getMask(): int
105			{
106			return $this->mask;
107			}
108
109			/**
110			* @param int $mask
111			* @return $this
112			*/
113			public function setMask(int $mask)
114			{
115			$this->mask = (int)$mask;
116			return $this;
117			}
118
119			/**
120			* Return set bits count.
121			* Actually, counts the number of 1 in binary representation of the decimal mask integer.
122			* @return int
123			*/
124			public function getSetBitsCount(): int
125			{
126			return substr_count(decbin($this->mask), '1');
127			}
128			}
129

Aliance / Bitmask

Pull Request — master (#4)

Bitmask::deleteMask() A

Complexity

Size

Duplication

Code Coverage

Importance

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