Buffer::flip() - Code Metrics - Inspection of "Merge pull request #32 from afk11/add-buffer-cmp" - Bit-Wasp/buffertools-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 6151e0...f377c9 )

by thomas

created 2016-02-04 21:44 UTC

Buffer::flip() A

↳ Parent: Buffer

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
c	1
b	0
f	1
dl	0
loc	4
rs	10
cc	1
eloc	2
nc	1
nop	0

<?php

namespace BitWasp\Buffertools;

use Mdanter\Ecc\EccFactory;
use Mdanter\Ecc\Math\MathAdapterInterface;

class Buffer implements BufferInterface
{
    /**
     * @var int
     */
    protected $size;

    /**
     * @var string
     */
    protected $buffer;

    /**
     * @var MathAdapterInterface
     */
    protected $math;

    /**
     * @param string               $byteString
     * @param null|integer         $byteSize
     * @param MathAdapterInterface $math
     * @throws \Exception
     */
    public function __construct($byteString = '', $byteSize = null, MathAdapterInterface $math = null)
    {
        $this->math = $math ?: EccFactory::getAdapter();
        if ($byteSize !== null) {
            // Check the integer doesn't overflow its supposed size
            if ($this->math->cmp(strlen($byteString), $byteSize) > 0) {
                throw new \Exception('Byte string exceeds maximum size');
            }
        } else {
            $byteSize = strlen($byteString);
        }

        $this->size   = $byteSize;
        $this->buffer = $byteString;
    }

    /**
     * Create a new buffer from a hex string
     *
     * @param string $hexString
     * @param integer $byteSize
     * @param MathAdapterInterface $math
     * @return Buffer
     * @throws \Exception
     */
    public static function hex($hexString = '', $byteSize = null, MathAdapterInterface $math = null)
    {
        if (strlen($hexString) > 0 && !ctype_xdigit($hexString)) {
            throw new \InvalidArgumentException('BufferHex: non-hex character passed: ' . $hexString);
        }

        $math = $math ?: EccFactory::getAdapter();
        $binary = pack("H*", $hexString);
        return new self($binary, $byteSize, $math);
    }

    /**
     * @param int|string $integer
     * @param null|int $byteSize
     * @param MathAdapterInterface|null $math
     * @return Buffer
     */
    public static function int($integer, $byteSize = null, MathAdapterInterface $math = null)
    {
        $math = $math ?: EccFactory::getAdapter();
        $binary = pack("H*", $math->decHex($integer));
        return new self($binary, $byteSize, $math);
    }

    /**
     * @param integer      $start
     * @param integer|null $end
     * @return Buffer
     * @throws \Exception
     */
    public function slice($start, $end = null)
    {
        if ($start > $this->getSize()) {
            throw new \Exception('Start exceeds buffer length');
        }

        if ($end === null) {
            return new self(substr($this->getBinary(), $start));
        }

        if ($end > $this->getSize()) {
            throw new \Exception('Length exceeds buffer length');
        }

        $string = substr($this->getBinary(), $start, $end);
        $length = strlen($string);
        return new self($string, $length, $this->math);
    }

    /**
     * Get the size of the buffer to be returned
     *
     * @return int
     */
    public function getSize()
    {
        return $this->size;
    }

    /**
     * Get the size of the value stored in the buffer
     *
     * @return int
     */
    public function getInternalSize()
    {
        return strlen($this->buffer);
    }

    /**
     * @return string
     */
    public function getBinary()
    {
        // if a size is specified we'll make sure the value returned is that size
        if ($this->size !== null) {
            if (strlen($this->buffer) < $this->size) {
                return str_pad($this->buffer, $this->size, chr(0), STR_PAD_LEFT);
            } elseif (strlen($this->buffer) > $this->size) {
                return substr($this->buffer, 0, $this->size);
            }
        }

        return $this->buffer;
    }

    /**
     * @return string
     */
    public function getHex()
    {
        return bin2hex($this->getBinary());
    }

    /**
     * @return int|string
     */
    public function getInt()
    {
        return $this->math->hexDec($this->getHex());
    }

    /**
     * @return Buffer
     */
    public function flip()
    {
        return Buffertools::flipBytes($this);

    }

    /**
     * @return bool
     */
    public function equals(BufferInterface $other)
    {
        return ($other->getSize() === $this->getSize()
             && $other->getBinary() === $this->getBinary());
    }
}


1			<?php
2
3			namespace BitWasp\Buffertools;
4
5			use Mdanter\Ecc\EccFactory;
6			use Mdanter\Ecc\Math\MathAdapterInterface;
7
8			class Buffer implements BufferInterface
9			{
10			/**
11			* @var int
12			*/
13			protected $size;
14
15			/**
16			* @var string
17			*/
18			protected $buffer;
19
20			/**
21			* @var MathAdapterInterface
22			*/
23			protected $math;
24
25			/**
26			* @param string $byteString
27			* @param null\|integer $byteSize
28			* @param MathAdapterInterface $math
29			* @throws \Exception
30			*/
31			public function __construct($byteString = '', $byteSize = null, MathAdapterInterface $math = null)
32			{
33			$this->math = $math ?: EccFactory::getAdapter();
34			if ($byteSize !== null) {
35			// Check the integer doesn't overflow its supposed size
36			if ($this->math->cmp(strlen($byteString), $byteSize) > 0) {
37			throw new \Exception('Byte string exceeds maximum size');
38			}
39			} else {
40			$byteSize = strlen($byteString);
41			}
42
43			$this->size = $byteSize;
44			$this->buffer = $byteString;
45			}
46
47			/**
48			* Create a new buffer from a hex string
49			*
50			* @param string $hexString
51			* @param integer $byteSize
52			* @param MathAdapterInterface $math
53			* @return Buffer
54			* @throws \Exception
55			*/
56			public static function hex($hexString = '', $byteSize = null, MathAdapterInterface $math = null)
57			{
58			if (strlen($hexString) > 0 && !ctype_xdigit($hexString)) {
59			throw new \InvalidArgumentException('BufferHex: non-hex character passed: ' . $hexString);
60			}
61
62			$math = $math ?: EccFactory::getAdapter();
63			$binary = pack("H*", $hexString);
64			return new self($binary, $byteSize, $math);
65			}
66
67			/**
68			* @param int\|string $integer
69			* @param null\|int $byteSize
70			* @param MathAdapterInterface\|null $math
71			* @return Buffer
72			*/
73			public static function int($integer, $byteSize = null, MathAdapterInterface $math = null)
74			{
75			$math = $math ?: EccFactory::getAdapter();
76			$binary = pack("H*", $math->decHex($integer));
77			return new self($binary, $byteSize, $math);
78			}
79
80			/**
81			* @param integer $start
82			* @param integer\|null $end
83			* @return Buffer
84			* @throws \Exception
85			*/
86			public function slice($start, $end = null)
87			{
88			if ($start > $this->getSize()) {
89			throw new \Exception('Start exceeds buffer length');
90			}
91
92			if ($end === null) {
93			return new self(substr($this->getBinary(), $start));
94			}
95
96			if ($end > $this->getSize()) {
97			throw new \Exception('Length exceeds buffer length');
98			}
99
100			$string = substr($this->getBinary(), $start, $end);
101			$length = strlen($string);
102			return new self($string, $length, $this->math);
103			}
104
105			/**
106			* Get the size of the buffer to be returned
107			*
108			* @return int
109			*/
110			public function getSize()
111			{
112			return $this->size;
113			}
114
115			/**
116			* Get the size of the value stored in the buffer
117			*
118			* @return int
119			*/
120			public function getInternalSize()
121			{
122			return strlen($this->buffer);
123			}
124
125			/**
126			* @return string
127			*/
128			public function getBinary()
129			{
130			// if a size is specified we'll make sure the value returned is that size
131			if ($this->size !== null) {
132			if (strlen($this->buffer) < $this->size) {
133			return str_pad($this->buffer, $this->size, chr(0), STR_PAD_LEFT);
134			} elseif (strlen($this->buffer) > $this->size) {
135			return substr($this->buffer, 0, $this->size);
136			}
137			}
138
139			return $this->buffer;
140			}
141
142			/**
143			* @return string
144			*/
145			public function getHex()
146			{
147			return bin2hex($this->getBinary());
148			}
149
150			/**
151			* @return int\|string
152			*/
153			public function getInt()
154			{
155			return $this->math->hexDec($this->getHex());
156			}
157
158			/**
159			* @return Buffer
160			*/
161			public function flip()
162			{
163			return Buffertools::flipBytes($this);
			0 ignored issues – show Bug Compatibility introduced 2016-02-04 16:20 UTC by Report Bug Copy Issue Report The expression `\BitWasp\Buffertools\Buf...ools::flipBytes($this);` of type `BitWasp\Buffertools\Buffer\|string` adds the type `string` to the return on line 163 which is incompatible with the return type declared by the interface `BitWasp\Buffertools\BufferInterface::flip` of type `BitWasp\Buffertools\Buffer`. Loading history...
164			}
165
166			/**
167			* @return bool
168			*/
169			public function equals(BufferInterface $other)
170			{
171			return ($other->getSize() === $this->getSize()
172			&& $other->getBinary() === $this->getBinary());
173			}
174			}
175

Bit-Wasp / buffertools-php

Push — master ( 6151e0...f377c9 )

Buffer::flip() A

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