Packer::packExt() - Code Metrics - Inspection of "Remove useless check" - rybakit/msgpack.php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( e8251b...ddf203 )

by Eugene

created 2015-11-30 16:41 UTC

Packer::packExt() C

↳ Parent: Packer

Complexity

Conditions	8
Paths	8

Size

Total Lines	23
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	14
CRAP Score	8

Importance

Changes	5
Bugs	1	Features	0

Metric	Value
c	5
b	1
f	0
dl	0
loc	23
ccs	14
cts	14
cp	1
rs	6.1404
cc	8
eloc	15
nc	8
nop	1
crap	8

<?php

/*
 * This file is part of the rybakit/msgpack.php package.
 *
 * (c) Eugene Leonovich <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace MessagePack;

use MessagePack\Exception\PackingFailedException;

class Packer
{
    public function pack($value)
    {
        $type = gettype($value);

        switch ($type) {
            case 'array':
                return array_values($value) === $value ? $this->packArr($value) : $this->packMap($value);
            case 'string':
                return preg_match('//u', $value) ? $this->packStr($value) : $this->packBin($value);
            case 'integer':
                return $this->packInt($value);
            case 'NULL':
                return $this->packNil();
            case 'boolean':
                return $this->packBool($value);
            case 'double':
                return $this->packDouble($value);
        }

        if ($value instanceof Ext) {
            return $this->packExt($value);
        }

        throw new PackingFailedException($value, 'Unsupported type.');
    }

    public function packArr(array $array)
    {
        $size = count($array);
        $data = self::packArrHeader($size);

        foreach ($array as $val) {
            $data .= $this->pack($val);
        }

        return $data;
    }

    private static function packArrHeader($size)

    {
        if ($size <= 0xf) {
            return chr(0x90 | $size);
        }

        if ($size <= 0xffff) {
            return pack('Cn', 0xdc, $size);
        }

        return pack('CN', 0xdd, $size);
    }

    public function packMap(array $map)
    {
        $size = count($map);
        $data = self::packMapHeader($size);

        foreach ($map as $key => $val) {
            $data .= $this->pack($key);
            $data .= $this->pack($val);
        }

        return $data;
    }

    private static function packMapHeader($size)

    {
        if ($size <= 0xf) {
            return chr(0x80 | $size);
        }

        if ($size <= 0xffff) {
            return pack('Cn', 0xde, $size);
        }

        return pack('CN', 0xdf, $size);
    }

    public function packStr($str)
    {
        $len = strlen($str);

        if ($len < 32) {
            return chr(0xa0 | $len).$str;
        }
        if ($len <= 0xff) {
            return pack('CC', 0xd9, $len).$str;
        }
        if ($len <= 0xffff) {
            return pack('Cn', 0xda, $len).$str;
        }

        return pack('CN', 0xdb, $len).$str;
    }

    public function packBin($str)
    {
        $len = strlen($str);

        if ($len <= 0xff) {
            return pack('CC', 0xc4, $len).$str;
        }
        if ($len <= 0xffff) {
            return pack('Cn', 0xc5, $len).$str;
        }

        return pack('CN', 0xc6, $len).$str;
    }

    public function packExt(Ext $ext)
    {
        $type = $ext->getType();
        $data = $ext->getData();
        $len = strlen($data);

        switch ($len) {
            case 1: return pack('CC', 0xd4, $type).$data;
            case 2: return pack('CC', 0xd5, $type).$data;
            case 4: return pack('CC', 0xd6, $type).$data;
            case 8: return pack('CC', 0xd7, $type).$data;
            case 16: return pack('CC', 0xd8, $type).$data;
        }

        if ($len <= 0xff) {
            return pack('CCC', 0xc7, $len, $type).$data;
        }
        if ($len <= 0xffff) {
            return pack('CnC', 0xc8, $len, $type).$data;
        }

        return pack('CNC', 0xc9, $len, $type).$data;
    }

    public function packNil()
    {
        return "\xc0";
    }

    public function packBool($val)
    {
        return $val ? "\xc3" : "\xc2";
    }

    public function packDouble($num)
    {
        return "\xcb".strrev(pack('d', $num));
    }

    public function packInt($num)
    {
        if ($num >= 0) {
            if ($num <= 0x7f) {
                return chr($num);
            }
            if ($num <= 0xff) {
                return pack('CC', 0xcc, $num);
            }
            if ($num <= 0xffff) {
                return pack('Cn', 0xcd, $num);
            }
            if ($num <= 0xffffffff) {
                return pack('CN', 0xce, $num);
            }

            return self::packU64(0xcf, $num);
        }

        if ($num >= -0x20) {
            return chr(0xe0 | $num);
        }
        if ($num >= -0x80) {
            return pack('CC', 0xd0, $num);
        }
        if ($num >= -0x8000) {
            return pack('Cn', 0xd1, $num);
        }
        if ($num >= -0x80000000) {
            return pack('CN', 0xd2, $num);
        }

        return self::packU64(0xd3, $num);
    }

    private static function packU64($code, $num)
    {
        $hi = ($num & 0xffffffff00000000) >> 32;
        $lo = $num & 0x00000000ffffffff;

        return pack('CNN', $code, $hi, $lo);
    }
}


1			<?php
2
3			/*
4			* This file is part of the rybakit/msgpack.php package.
5			*
6			* (c) Eugene Leonovich <[email protected]>
7			*
8			* For the full copyright and license information, please view the LICENSE
9			* file that was distributed with this source code.
10			*/
11
12			namespace MessagePack;
13
14			use MessagePack\Exception\PackingFailedException;
15
16			class Packer
17			{
18	74		public function pack($value)
19			{
20	74		$type = gettype($value);
21
22			switch ($type) {
23	74		case 'array':
24	13		return array_values($value) === $value ? $this->packArr($value) : $this->packMap($value);
25	73		case 'string':
26	23		return preg_match('//u', $value) ? $this->packStr($value) : $this->packBin($value);
27	56		case 'integer':
28	41		return $this->packInt($value);
29	19		case 'NULL':
30	3		return $this->packNil();
31	18		case 'boolean':
32	6		return $this->packBool($value);
33	13		case 'double':
34	3		return $this->packDouble($value);
35			}
36
37	10		if ($value instanceof Ext) {
38	9		return $this->packExt($value);
39			}
40
41	1		throw new PackingFailedException($value, 'Unsupported type.');
42			}
43
44	7		public function packArr(array $array)
45			{
46	7		$size = count($array);
47	7		$data = self::packArrHeader($size);
48
49	7		foreach ($array as $val) {
50	6		$data .= $this->pack($val);
51	7		}
52
53	7		return $data;
54			}
55
56	7	View Code Duplication	private static function packArrHeader($size)
			0 ignored issues – show Duplication introduced 2015-11-27 22:45 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
57			{
58	7		if ($size <= 0xf) {
59	4		return chr(0x90 \| $size);
60			}
61
62	3		if ($size <= 0xffff) {
63	2		return pack('Cn', 0xdc, $size);
64			}
65
66	1		return pack('CN', 0xdd, $size);
67			}
68
69	8		public function packMap(array $map)
70			{
71	8		$size = count($map);
72	8		$data = self::packMapHeader($size);
73
74	8		foreach ($map as $key => $val) {
75	8		$data .= $this->pack($key);
76	8		$data .= $this->pack($val);
77	8		}
78
79	8		return $data;
80			}
81
82	8	View Code Duplication	private static function packMapHeader($size)
			0 ignored issues – show Duplication introduced 2015-11-27 22:45 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
83			{
84	8		if ($size <= 0xf) {
85	5		return chr(0x80 \| $size);
86			}
87
88	3		if ($size <= 0xffff) {
89	2		return pack('Cn', 0xde, $size);
90			}
91
92	1		return pack('CN', 0xdf, $size);
93			}
94
95	17		public function packStr($str)
96			{
97	17		$len = strlen($str);
98
99	17		if ($len < 32) {
100	10		return chr(0xa0 \| $len).$str;
101			}
102	7		if ($len <= 0xff) {
103	4		return pack('CC', 0xd9, $len).$str;
104			}
105	3		if ($len <= 0xffff) {
106	2		return pack('Cn', 0xda, $len).$str;
107			}
108
109	1		return pack('CN', 0xdb, $len).$str;
110			}
111
112	8		public function packBin($str)
113			{
114	8		$len = strlen($str);
115
116	8		if ($len <= 0xff) {
117	6		return pack('CC', 0xc4, $len).$str;
118			}
119	2		if ($len <= 0xffff) {
120	1		return pack('Cn', 0xc5, $len).$str;
121			}
122
123	1		return pack('CN', 0xc6, $len).$str;
124			}
125
126	9		public function packExt(Ext $ext)
127			{
128	9		$type = $ext->getType();
129	9		$data = $ext->getData();
130	9		$len = strlen($data);
131
132			switch ($len) {
133	9		case 1: return pack('CC', 0xd4, $type).$data;
134	8		case 2: return pack('CC', 0xd5, $type).$data;
135	7		case 4: return pack('CC', 0xd6, $type).$data;
136	6		case 8: return pack('CC', 0xd7, $type).$data;
137	5		case 16: return pack('CC', 0xd8, $type).$data;
138			}
139
140	4		if ($len <= 0xff) {
141	2		return pack('CCC', 0xc7, $len, $type).$data;
142			}
143	2		if ($len <= 0xffff) {
144	1		return pack('CnC', 0xc8, $len, $type).$data;
145			}
146
147	1		return pack('CNC', 0xc9, $len, $type).$data;
148			}
149
150	3		public function packNil()
151			{
152	3		return "\xc0";
153			}
154
155	6		public function packBool($val)
156			{
157	6		return $val ? "\xc3" : "\xc2";
158			}
159
160	3		public function packDouble($num)
161			{
162	3		return "\xcb".strrev(pack('d', $num));
163			}
164
165	41		public function packInt($num)
166			{
167	41		if ($num >= 0) {
168	26		if ($num <= 0x7f) {
169	14		return chr($num);
170			}
171	16		if ($num <= 0xff) {
172	6		return pack('CC', 0xcc, $num);
173			}
174	12		if ($num <= 0xffff) {
175	6		return pack('Cn', 0xcd, $num);
176			}
177	7		if ($num <= 0xffffffff) {
178	5		return pack('CN', 0xce, $num);
179			}
180
181	3		return self::packU64(0xcf, $num);
182			}
183
184	15		if ($num >= -0x20) {
185	3		return chr(0xe0 \| $num);
186			}
187	12		if ($num >= -0x80) {
188	3		return pack('CC', 0xd0, $num);
189			}
190	9		if ($num >= -0x8000) {
191	3		return pack('Cn', 0xd1, $num);
192			}
193	6		if ($num >= -0x80000000) {
194	3		return pack('CN', 0xd2, $num);
195			}
196
197	3		return self::packU64(0xd3, $num);
198			}
199
200	6		private static function packU64($code, $num)
201			{
202	6		$hi = ($num & 0xffffffff00000000) >> 32;
203	6		$lo = $num & 0x00000000ffffffff;
204
205	6		return pack('CNN', $code, $hi, $lo);
206			}
207			}
208

rybakit / msgpack.php

Push — master ( e8251b...ddf203 )

Packer::packExt() C

Complexity

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Duplication

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