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

Completed

Pull Request — master (#30)

by Eugene

created 2019-09-24 21:28 UTC

Packer::extendWith() A

↳ Parent: Packer

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	11
ccs	6
cts	6
cp	1
rs	9.9
c	0
b	0
f	0
cc	2
nc	2
nop	2
crap	2

<?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\CanPack;

class Packer
{
    private 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 CanPack[]
     */
    private $transformers = [];

    /**
     * @param PackOptions|int|null $options
     * @param CanPack[] $transformers
     *
     * @throws InvalidOptionException
     */
    public function __construct($options = null, array $transformers = [])
    {
        if (null === $options) {
            $options = PackOptions::fromDefaults();
        } elseif (!$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();

        if ([] !== $transformers) {
            $this->transformers = $transformers;
        }
    }

    public function extendWith(CanPack $transformer, CanPack ...$transformers) : self
    {
        $new = clone $this;
        $new->transformers[] = $transformer;

        if ([] !== $transformers) {
            $new->transformers[] = \array_merge($new->transformers, $transformers);
        }

        return $new;
    }

    public function pack($value)
    {
        if (\is_int($value)) {
            return $this->packInt($value);
        }
        if (\is_string($value)) {
            if ('' === $value) {
                return $this->isForceStr || $this->isDetectStrBin ? "\xa0" : "\xc4\x00";
            }
            if ($this->isForceStr) {
                return $this->packStr($value);
            }
            if ($this->isDetectStrBin && \preg_match(self::UTF8_REGEX, $value)) {
                return $this->packStr($value);
            }

            return $this->packBin($value);
        }
        if (\is_array($value)) {
            if ([] === $value) {
                return $this->isDetectArrMap || $this->isForceArr ? "\x90" : "\x80";
            }
            if ($this->isDetectArrMap) {
                if (!isset($value[0]) && !\array_key_exists(0, $value)) {
                    return $this->packMap($value);
                }

                return \array_values($value) === $value
                    ? $this->packArray($value)
                    : $this->packMap($value);
            }

            return $this->isForceArr ? $this->packArray($value) : $this->packMap($value);
        }
        if (null === $value) {
            return "\xc0";
        }
        if (\is_bool($value)) {
            return $value ? "\xc3" : "\xc2";
        }
        if (\is_float($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 PackingFailedException::unsupportedType($value);
    }

    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 \pack('CJ', 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 \pack('CJ', 0xd3, $int);
    }

    public function packFloat($float)
    {
        return $this->isForceFloat32
            ? "\xca".\pack('G', $float)
            : "\xcb".\pack('E', $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)
    {
        $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($map)
    {
        $data = $this->packMapHeader(\count($map));

        if ($this->isForceStr) {
            foreach ($map as $key => $val) {
                $data .= \is_string($key) ? $this->packStr($key) : $this->packInt($key);
                $data .= $this->pack($val);
            }

            return $data;
        }

        if ($this->isDetectStrBin) {
            foreach ($map as $key => $val) {
                $data .= \is_string($key)
                    ? (\preg_match(self::UTF8_REGEX, $key) ? $this->packStr($key) : $this->packBin($key))
                    : $this->packInt($key);
                $data .= $this->pack($val);
            }

            return $data;
        }

        foreach ($map as $key => $val) {
            $data .= \is_string($key) ? $this->packBin($key) : $this->packInt($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).$data;
            case 8: return "\xd7".\chr($type).$data;
            case 16: return "\xd8".\chr($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;
    }
}


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\CanPack;
17
18		class Packer
19		{
20		private 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 CanPack[]
39		*/
40		private $transformers = [];
41
42		/**
43		* @param PackOptions\|int\|null $options
44		* @param CanPack[] $transformers
45		*
46		* @throws InvalidOptionException
47	184	*/
48		public function __construct($options = null, array $transformers = [])
49	184	{
50	183	if (null === $options) {
51	20	$options = PackOptions::fromDefaults();
52	20	} elseif (!$options instanceof PackOptions) {
53		$options = PackOptions::fromBitmask($options);
54		}
55	184
56	184	$this->isDetectStrBin = $options->isDetectStrBinMode();
57	184	$this->isForceStr = $options->isForceStrMode();
58	184	$this->isDetectArrMap = $options->isDetectArrMapMode();
59	184	$this->isForceArr = $options->isForceArrMode();
60	184	$this->isForceFloat32 = $options->isForceFloat32Mode();
61
62	2	if ([] !== $transformers) {
63		$this->transformers = $transformers;
64	2	}
65		}
66	2
67		public function extendWith(CanPack $transformer, CanPack ...$transformers) : self
68		{
69	116	$new = clone $this;
70		$new->transformers[] = $transformer;
71	116
72	63	if ([] !== $transformers) {
73		$new->transformers[] = \array_merge($new->transformers, $transformers);
74	76	}
75	35
76	1	return $new;
77		}
78	34
79	3	public function pack($value)
80		{
81	31	if (\is_int($value)) {
82	21	return $this->packInt($value);
83		}
84		if (\is_string($value)) {
85	14	if ('' === $value) {
86		return $this->isForceStr \|\| $this->isDetectStrBin ? "\xa0" : "\xc4\x00";
87	53	}
88	29	if ($this->isForceStr) {
89	1	return $this->packStr($value);
90		}
91	28	if ($this->isDetectStrBin && \preg_match(self::UTF8_REGEX, $value)) {
92	21	return $this->packStr($value);
93	13	}
94
95		return $this->packBin($value);
96	12	}
97	12	if (\is_array($value)) {
98	12	if ([] === $value) {
99		return $this->isDetectArrMap \|\| $this->isForceArr ? "\x90" : "\x80";
100		}
101	7	if ($this->isDetectArrMap) {
102		if (!isset($value[0]) && !\array_key_exists(0, $value)) {
103	31	return $this->packMap($value);
104	7	}
105
106	28	return \array_values($value) === $value
107	10	? $this->packArray($value)
108		: $this->packMap($value);
109	20	}
110	6
111		return $this->isForceArr ? $this->packArray($value) : $this->packMap($value);
112	14	}
113	10	if (null === $value) {
114		return "\xc0";
115	4	}
116	2	if (\is_bool($value)) {
117	2	return $value ? "\xc3" : "\xc2";
118	1	}
119		if (\is_float($value)) {
120		return $this->packFloat($value);
121		}
122		if ($value instanceof Ext) {
123	3	return $this->packExt($value->type, $value->data);
124		}
125		if ([] !== $this->transformers) {
126	1	foreach ($this->transformers as $transformer) {
127		if (null !== $packed = $transformer->pack($this, $value)) {
128	1	return $packed;
129		}
130		}
131	2	}
132
133	2	throw PackingFailedException::unsupportedType($value);
134		}
135
136	98	public function packNil()
137		{
138	98	return "\xc0";
139	66	}
140	40
141		public function packBool($bool)
142	34	{
143	12	return $bool ? "\xc3" : "\xc2";
144		}
145	26
146	12	public function packInt($int)
147		{
148	16	if ($int >= 0) {
149	10	if ($int <= 0x7f) {
150		return \chr($int);
151		}
152	8	if ($int <= 0xff) {
153		return "\xcc".\chr($int);
154		}
155	34	if ($int <= 0xffff) {
156	8	return "\xcd".\chr($int >> 8).\chr($int);
157		}
158	26	if ($int <= 0xffffffff) {
159	6	return \pack('CN', 0xce, $int);
160		}
161	20
162	6	return \pack('CJ', 0xcf, $int);
163		}
164	14
165	6	if ($int >= -0x20) {
166		return \chr(0xe0 \| $int);
167		}
168	8	if ($int >= -0x80) {
169		return "\xd0".\chr($int);
170		}
171	9	if ($int >= -0x8000) {
172		return "\xd1".\chr($int >> 8).\chr($int);
173	9	}
174	1	if ($int >= -0x80000000) {
175	9	return \pack('CN', 0xd2, $int);
176		}
177
178	38	return \pack('CJ', 0xd3, $int);
179		}
180	38
181		public function packFloat($float)
182	38	{
183	24	return $this->isForceFloat32
184		? "\xca".\pack('G', $float)
185	14	: "\xcb".\pack('E', $float);
186	8	}
187
188	6	public function packStr($str)
189	4	{
190		$length = \strlen($str);
191
192	2	if ($length < 32) {
193		return \chr(0xa0 \| $length).$str;
194		}
195	21	if ($length <= 0xff) {
196		return "\xd9".\chr($length).$str;
197	21	}
198		if ($length <= 0xffff) {
199	21	return "\xda".\chr($length >> 8).\chr($length).$str;
200	17	}
201
202	4	return \pack('CN', 0xdb, $length).$str;
203	2	}
204
205		public function packBin($str)
206	2	{
207		$length = \strlen($str);
208
209	21	if ($length <= 0xff) {
210		return "\xc4".\chr($length).$str;
211	21	}
212		if ($length <= 0xffff) {
213	21	return "\xc5".\chr($length >> 8).\chr($length).$str;
214	20	}
215
216		return \pack('CN', 0xc6, $length).$str;
217	21	}
218
219		public function packArray($array)
220	21	{
221		$data = $this->packArrayHeader(\count($array));
222	21
223	15	foreach ($array as $val) {
224		$data .= $this->pack($val);
225	6	}
226	4
227		return $data;
228		}
229	2
230		public function packArrayHeader($size)
231		{
232	24	if ($size <= 0xf) {
233		return \chr(0x90 \| $size);
234	24	}
235		if ($size <= 0xffff) {
236	24	return "\xdc".\chr($size >> 8).\chr($size);
237	1	}
238	1
239	1	return \pack('CN', 0xdd, $size);
240		}
241
242	1	public function packMap($map)
243		{
244		$data = $this->packMapHeader(\count($map));
245	23
246	22	if ($this->isForceStr) {
247	22	foreach ($map as $key => $val) {
248	4	$data .= \is_string($key) ? $this->packStr($key) : $this->packInt($key);
249	22	$data .= $this->pack($val);
250	22	}
251
252		return $data;
253	22	}
254
255		if ($this->isDetectStrBin) {
256	1	foreach ($map as $key => $val) {
257	1	$data .= \is_string($key)
258	1	? (\preg_match(self::UTF8_REGEX, $key) ? $this->packStr($key) : $this->packBin($key))
259		: $this->packInt($key);
260		$data .= $this->pack($val);
261	1	}
262
263		return $data;
264	24	}
265
266	24	foreach ($map as $key => $val) {
267	18	$data .= \is_string($key) ? $this->packBin($key) : $this->packInt($key);
268		$data .= $this->pack($val);
269	6	}
270	4
271		return $data;
272		}
273	2
274		public function packMapHeader($size)
275		{
276	18	if ($size <= 0xf) {
277		return \chr(0x80 \| $size);
278	18	}
279		if ($size <= 0xffff) {
280	18	return "\xde".\chr($size >> 8).\chr($size);
281	18	}
282	16
283	14	return \pack('CN', 0xdf, $size);
284	12	}
285	10
286		public function packExt($type, $data)
287		{
288	8	$length = \strlen($data);
289	4
290		switch ($length) {
291	4	case 1: return "\xd4".\chr($type).$data;
292	2	case 2: return "\xd5".\chr($type).$data;
293		case 4: return "\xd6".\chr($type).$data;
294		case 8: return "\xd7".\chr($type).$data;
295	2	case 16: return "\xd8".\chr($type).$data;
296		}
297
298		if ($length <= 0xff) {
299		return "\xc7".\chr($length).\chr($type).$data;
300		}
301		if ($length <= 0xffff) {
302		return \pack('CnC', 0xc8, $length, $type).$data;
303		}
304
305		return \pack('CNC', 0xc9, $length, $type).$data;
306		}
307		}
308

rybakit / msgpack.php

Pull Request — master (#30)

Packer::extendWith() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like