Packer::packFloat32() - Code Metrics - Inspection of "Enhance type transformers" - rybakit/msgpack.php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#21)

by Eugene

created 2018-04-14 20:15 UTC

Packer::packFloat32() A

↳ Parent: Packer

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

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

<?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\InvalidOptionException;
use MessagePack\Exception\PackingFailedException;
use MessagePack\TypeTransformer\Packable;

class Packer
{
    const UTF8_REGEX = '/\A(?:
          [\x00-\x7F]++                      # ASCII
        | [\xC2-\xDF][\x80-\xBF]             # non-overlong 2-byte
        |  \xE0[\xA0-\xBF][\x80-\xBF]        # excluding overlongs
        | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}  # straight 3-byte
        |  \xED[\x80-\x9F][\x80-\xBF]        # excluding surrogates
        |  \xF0[\x90-\xBF][\x80-\xBF]{2}     # planes 1-3
        | [\xF1-\xF3][\x80-\xBF]{3}          # planes 4-15
        |  \xF4[\x80-\x8F][\x80-\xBF]{2}     # plane 16
        )*+\z/x';

    private $isDetectStrBin;
    private $isForceStr;
    private $isDetectArrMap;
    private $isForceArr;
    private $isForceFloat32;

    /**
     * @var Packable[]|null
     */
    private $transformers;

    /**
     * @param PackOptions|int|null $options
     *
     * @throws InvalidOptionException
     */
    public function __construct($options = null)
    {
        if (!$options instanceof PackOptions) {
            $options = PackOptions::fromBitmask($options);
        }

        $this->isDetectStrBin = $options->isDetectStrBinMode();
        $this->isForceStr = $options->isForceStrMode();
        $this->isDetectArrMap = $options->isDetectArrMapMode();
        $this->isForceArr = $options->isForceArrMode();
        $this->isForceFloat32 = $options->isForceFloat32Mode();
    }

    public function registerTransformer(Packable $transformer)
    {
        $this->transformers[] = $transformer;
    }

    public function pack($value)
    {
        if (\is_int($value)) {
            return $this->packInt($value);
        }
        if (\is_string($value)) {
            if ($this->isDetectStrBin) {
                return \preg_match(self::UTF8_REGEX, $value)
                    ? $this->packStr($value)
                    : $this->packBin($value);
            }

            return $this->isForceStr ? $this->packStr($value) : $this->packBin($value);
        }
        if (\is_array($value)) {
            if ($this->isDetectArrMap) {
                return \array_values($value) === $value
                    ? $this->packArray($value)
                    : $this->packMap($value);
            }

            return $this->isForceArr ? $this->packArray($value) : $this->packMap($value);
        }
        if (null === $value) {
            return $this->packNil();
        }
        if (\is_bool($value)) {
            return $this->packBool($value);
        }
        if (\is_float($value)) {
            return $this->packFloat($value);
        }
        if ($value instanceof Ext) {
            return $this->packExt($value->type, $value->data);
        }
        if ($this->transformers) {
            foreach ($this->transformers as $transformer) {
                if (null !== $packed = $transformer->pack($this, $value)) {
                    return $packed;
                }
            }
        }

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

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

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

    public function packInt($int)
    {
        if ($int >= 0) {
            if ($int <= 0x7f) {
                return \chr($int);
            }
            if ($int <= 0xff) {
                return "\xcc".\chr($int);
            }
            if ($int <= 0xffff) {
                return "\xcd".\chr($int >> 8).\chr($int);
            }
            if ($int <= 0xffffffff) {
                return \pack('CN', 0xce, $int);
            }

            return self::packUintInt64(0xcf, $int);
        }

        if ($int >= -0x20) {
            return \chr(0xe0 | $int);
        }
        if ($int >= -0x80) {
            return "\xd0".\chr($int);
        }
        if ($int >= -0x8000) {
            return "\xd1".\chr($int >> 8).\chr($int);
        }
        if ($int >= -0x80000000) {
            return \pack('CN', 0xd2, $int);
        }

        return self::packUintInt64(0xd3, $int);
    }

    public function packFloat($float)
    {
        return $this->isForceFloat32
            ? "\xca".\strrev(\pack('f', $float))
            : "\xcb".\strrev(\pack('d', $float));
    }

    public function packStr($str)
    {
        $length = \strlen($str);

        if ($length < 32) {
            return \chr(0xa0 | $length).$str;
        }
        if ($length <= 0xff) {
            return "\xd9".\chr($length).$str;
        }
        if ($length <= 0xffff) {

            return "\xda".\chr($length >> 8).\chr($length).$str;
        }

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

    public function packBin($str)
    {
        $length = \strlen($str);

        if ($length <= 0xff) {
            return "\xc4".\chr($length).$str;
        }
        if ($length <= 0xffff) {

            return "\xc5".\chr($length >> 8).\chr($length).$str;
        }

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

    public function packArray(array $array)
    {
        $data = $this->packArrayHeader(\count($array));

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

        return $data;
    }

    public function packArrayHeader($size)

    {
        if ($size <= 0xf) {
            return \chr(0x90 | $size);
        }
        if ($size <= 0xffff) {
            return "\xdc".\chr($size >> 8).\chr($size);
        }

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

    public function packMap(array $map)
    {
        $data = $this->packMapHeader(\count($map));

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

        return $data;
    }

    public function packMapHeader($size)

    {
        if ($size <= 0xf) {
            return \chr(0x80 | $size);
        }
        if ($size <= 0xffff) {
            return "\xde".\chr($size >> 8).\chr($size);
        }

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

    public function packExt($type, $data)
    {
        $length = \strlen($data);

        switch ($length) {
            case 1: return "\xd4".\chr($type).$data;
            case 2: return "\xd5".\chr($type).$data;
            case 4: return "\xd6".\chr($type).$data;
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 8: return "\xd7".\chr($type).$data;
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 16: return "\xd8".\chr($type).$data;
        }

        if ($length <= 0xff) {

            return "\xc7".\chr($length).\chr($type).$data;
        }
        if ($length <= 0xffff) {
            return \pack('CnC', 0xc8, $length, $type).$data;
        }

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

    private static function packUintInt64($code, $int)
    {
        $hi = ($int & 0xffffffff00000000) >> 32;
        $lo = $int & 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\InvalidOptionException;
15			use MessagePack\Exception\PackingFailedException;
16			use MessagePack\TypeTransformer\Packable;
17
18			class Packer
19			{
20			const UTF8_REGEX = '/\A(?:
21			[\x00-\x7F]++ # ASCII
22			\| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
23			\| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
24			\| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
25			\| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
26			\| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
27			\| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
28			\| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
29			)*+\z/x';
30
31			private $isDetectStrBin;
32			private $isForceStr;
33			private $isDetectArrMap;
34			private $isForceArr;
35			private $isForceFloat32;
36
37			/**
38			* @var Packable[]\|null
39			*/
40			private $transformers;
41
42			/**
43			* @param PackOptions\|int\|null $options
44			*
45			* @throws InvalidOptionException
46			*/
47	106		public function __construct($options = null)
48			{
49	106		if (!$options instanceof PackOptions) {
50	106		$options = PackOptions::fromBitmask($options);
51			}
52
53	106		$this->isDetectStrBin = $options->isDetectStrBinMode();
54	106		$this->isForceStr = $options->isForceStrMode();
55	106		$this->isDetectArrMap = $options->isDetectArrMapMode();
56	106		$this->isForceArr = $options->isForceArrMode();
57	106		$this->isForceFloat32 = $options->isForceFloat32Mode();
58	106		}
59
60			public function registerTransformer(Packable $transformer)
61			{
62			$this->transformers[] = $transformer;
63	2		}
64
65	2		public function pack($value)
66	2		{
67			if (\is_int($value)) {
68			return $this->packInt($value);
69			}
70			if (\is_string($value)) {
71	1		if ($this->isDetectStrBin) {
72			return \preg_match(self::UTF8_REGEX, $value)
73	1		? $this->packStr($value)
74			: $this->packBin($value);
75			}
76	98
77			return $this->isForceStr ? $this->packStr($value) : $this->packBin($value);
78	98		}
79	53		if (\is_array($value)) {
80			if ($this->isDetectArrMap) {
81	69		return \array_values($value) === $value
82	33		? $this->packArray($value)
83	27		: $this->packMap($value);
84	19		}
85	27
86			return $this->isForceArr ? $this->packArray($value) : $this->packMap($value);
87			}
88	6		if (null === $value) {
89			return $this->packNil();
90	46		}
91	26		if (\is_bool($value)) {
92	19		return $this->packBool($value);
93	10		}
94	19		if (\is_float($value)) {
95			return $this->packFloat($value);
96			}
97	7		if ($value instanceof Ext) {
98			return $this->packExt($value->type, $value->data);
99	24		}
100	3		if ($this->transformers) {
101			foreach ($this->transformers as $transformer) {
102	23		if (null !== $packed = $transformer->pack($this, $value)) {
103	6		return $packed;
104			}
105	18		}
106	6		}
107	1
108	6		throw new PackingFailedException($value, 'Unsupported type.');
109			}
110	12
111	9		public function packNil()
112			{
113			return "\xc0";
114	3		}
115	1
116			public function packBool($bool)
117	1		{
118			return $bool ? "\xc3" : "\xc2";
119			}
120	2
121			public function packInt($int)
122			{
123	13		if ($int >= 0) {
124			if ($int <= 0x7f) {
125	13		return \chr($int);
126			}
127	13		if ($int <= 0xff) {
128	10		return "\xcc".\chr($int);
129	3		}
130	2		if ($int <= 0xffff) {
131			return "\xcd".\chr($int >> 8).\chr($int);
132	1		}
133			if ($int <= 0xffffffff) {
134			return \pack('CN', 0xce, $int);
135	13		}
136	12
137			return self::packUintInt64(0xcf, $int);
138			}
139	13
140			if ($int >= -0x20) {
141			return \chr(0xe0 \| $int);
142	15		}
143			if ($int >= -0x80) {
144	15		return "\xd0".\chr($int);
145			}
146	15		if ($int >= -0x8000) {
147	12		return "\xd1".\chr($int >> 8).\chr($int);
148	3		}
149	2		if ($int >= -0x80000000) {
150			return \pack('CN', 0xd2, $int);
151	1		}
152
153			return self::packUintInt64(0xd3, $int);
154	15		}
155	15
156	15		public function packFloat($float)
157			{
158			return $this->isForceFloat32
159	15		? "\xca".\strrev(\pack('f', $float))
160			: "\xcb".\strrev(\pack('d', $float));
161			}
162	22
163			public function packStr($str)
164	22		{
165			$length = \strlen($str);
166	22
167	15		if ($length < 32) {
168			return \chr(0xa0 \| $length).$str;
169	7		}
170	4		if ($length <= 0xff) {
171			return "\xd9".\chr($length).$str;
172	3		}
173	2	View Code Duplication	if ($length <= 0xffff) {
			0 ignored issues – show Duplication introduced 2018-04-12 21:56 UTC by Report Bug Copy Issue Report This code seems to be duplicated across 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...
174			return "\xda".\chr($length >> 8).\chr($length).$str;
175			}
176	1
177			return \pack('CN', 0xdb, $length).$str;
178			}
179	13
180			public function packBin($str)
181	13		{
182			$length = \strlen($str);
183	13
184	11		if ($length <= 0xff) {
185			return "\xc4".\chr($length).$str;
186	2		}
187	1	View Code Duplication	if ($length <= 0xffff) {
			0 ignored issues – show Duplication introduced 2018-04-12 21:56 UTC by Report Bug Copy Issue Report This code seems to be duplicated across 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...
188			return "\xc5".\chr($length >> 8).\chr($length).$str;
189			}
190	1
191			return \pack('CN', 0xc6, $length).$str;
192			}
193	10
194			public function packArray(array $array)
195	10		{
196			$data = $this->packArrayHeader(\count($array));
197	10
198	10		foreach ($array as $val) {
199	8		$data .= $this->pack($val);
200	7		}
201	6
202	5		return $data;
203			}
204
205	4	View Code Duplication	public function packArrayHeader($size)
			0 ignored issues – show Duplication introduced 2018-04-12 21:56 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...
206	2		{
207			if ($size <= 0xf) {
208	2		return \chr(0x90 \| $size);
209	1		}
210			if ($size <= 0xffff) {
211			return "\xdc".\chr($size >> 8).\chr($size);
212	1		}
213
214			return \pack('CN', 0xdd, $size);
215	3		}
216
217	3		public function packMap(array $map)
218			{
219			$data = $this->packMapHeader(\count($map));
220	6
221			foreach ($map as $key => $val) {
222	6		$data .= $this->pack($key);
223			$data .= $this->pack($val);
224			}
225	3
226			return $data;
227	3		}
228
229		View Code Duplication	public function packMapHeader($size)
			0 ignored issues – show Duplication introduced 2018-04-12 21:56 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...
230	5		{
231			if ($size <= 0xf) {
232	5		return \chr(0x80 \| $size);
233			}
234			if ($size <= 0xffff) {
235	53		return "\xde".\chr($size >> 8).\chr($size);
236			}
237	53
238	38		return \pack('CN', 0xdf, $size);
239	26		}
240
241	16		public function packExt($type, $data)
242	6		{
243			$length = \strlen($data);
244	12
245	6		switch ($length) {
246			case 1: return "\xd4".\chr($type).$data;
247	7		case 2: return "\xd5".\chr($type).$data;
248	5		case 4: return "\xd6".\chr($type).$data;
			0 ignored issues – show Coding Style introduced 2016-03-03 21:40 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-03-03 21:40 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
249			case 8: return "\xd7".\chr($type).$data;
			0 ignored issues – show Coding Style introduced 2016-03-03 21:40 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-03-03 21:40 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
250			case 16: return "\xd8".\chr($type).$data;
251	3		}
252
253		View Code Duplication	if ($length <= 0xff) {
			0 ignored issues – show Duplication introduced 2018-04-12 21:56 UTC by Report Bug Copy Issue Report This code seems to be duplicated across 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...
254	16		return "\xc7".\chr($length).\chr($type).$data;
255	4		}
256			if ($length <= 0xffff) {
257	12		return \pack('CnC', 0xc8, $length, $type).$data;
258	3		}
259
260	9		return \pack('CNC', 0xc9, $length, $type).$data;
261	3		}
262
263	6		private static function packUintInt64($code, $int)
264	3		{
265			$hi = ($int & 0xffffffff00000000) >> 32;
266			$lo = $int & 0x00000000ffffffff;
267	3
268			return \pack('CNN', $code, $hi, $lo);
269			}
270			}
271

rybakit / msgpack.php

Pull Request — master (#21)

Packer::packFloat32() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

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