isString() - Code Metrics - Inspection of "WIP: Lexer unit tests" - digiaonline/graphql-php - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#184)

by Christoffer

created 2018-04-07 20:35 UTC

isString() A

↳ Parent: Project

Complexity

Conditions	2
Paths	2

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	3
rs	10
c	0
b	0
f	0
cc	2
eloc	1
nc	2
nop	3

<?php

namespace Digia\GraphQL\Language;

/**
 * @param int $cp
 * @return string
 */
function chrUTF8(int $cp)
{
    return \mb_convert_encoding(\pack('N', $cp), 'UTF-8', 'UCS-4BE');
}

/**
 * @param string $string
 * @return int
 */
function ordUTF8(string $string)
{
    [, $ord] = \unpack('N', \mb_convert_encoding($string, 'UCS-4BE', 'UTF-8'));

    return $ord;
}

/**
 * @param string $string
 * @param int    $position
 * @param bool   $convertEncoding
 * @return int
 */
function charCodeAt(string $string, int $position, bool $convertEncoding = false): int
{
    $char = \mb_substr($string, $position, 1);
    return $convertEncoding ? ordUTF8($char) : \ord($char);
}

/**
 * @param int $code
 * @return string
 */
function printCharCode(int $code): string
{
    if ($code === 0x0000) {
        return '<EOF>';
    }
    return $code < 0x007F
        // Trust JSON for ASCII.
        ? \json_encode(chrUTF8($code))
        // Otherwise print the escaped form.
        : '"\\u' . \dechex($code) . '"';
}

/**
 * @param string   $string
 * @param int      $start
 * @param int|null $end
 * @return string
 */
function sliceString(string $string, int $start, int $end = null): string
{
    $length = $end !== null ? $end - $start : \mb_strlen($string) - $start;
    return \mb_substr($string, $start, $length);
}

/**
 * @param int $code
 * @return bool
 */
function isLetter(int $code): bool
{
    return ($code >= 65 && $code <= 90) || ($code >= 97 && $code <= 122); // a-z or A-Z
}

/**
 * @param int $code
 * @return bool
 */
function isNumber(int $code): bool
{
    return $code >= 48 && $code <= 57; // 0-9
}

/**
 * @param int $code
 * @return bool
 */
function isUnderscore(int $code): bool
{
    return $code === 95; // _
}

/**
 * @param int $code
 * @return bool
 */
function isAlphaNumeric(int $code): bool
{
    return isLetter($code) || isNumber($code) || isUnderscore($code);
}

/**
 * @param int $code
 * @return bool
 */
function isLineTerminator(int $code): bool
{
    return $code === 0x000a || $code === 0x000d;
}

/**
 * @param int $code
 * @return bool
 */
function isSourceCharacter(int $code): bool
{
    return $code < 0x0020 && $code !== 0x0009; // any source character EXCEPT HT (Horizontal Tab)
}

/**
 * @param string $body
 * @param int    $code
 * @param int    $pos
 * @return bool
 */
function isSpread(string $body, int $code, int $pos): bool
{
    return $code === 46 &&
        charCodeAt($body, $pos + 1) === 46 &&
        charCodeAt($body, $pos + 2) === 46; // ...
}

/**
 * @param string $body
 * @param int    $code
 * @param int    $pos
 * @return bool
 */
function isString(string $body, int $code, int $pos): bool
{
    return $code === 34 && charCodeAt($body, $pos + 1) !== 34;
}

/**
 * @param string $body
 * @param int    $code
 * @param int    $pos
 * @return bool
 */
function isTripleQuote(string $body, int $code, int $pos): bool
{
    return $code === 34 &&
        charCodeAt($body, $pos + 1) === 34 &&
        charCodeAt($body, $pos + 2) === 34; // """
}

/**
 * @param string $body
 * @param int    $code
 * @param int    $pos
 * @return bool
 */
function isEscapedTripleQuote(
    string $body,
    int $code,
    int $pos
): bool {
    return $code === 92 &&
        charCodeAt($body, $pos + 1) === 34 &&
        charCodeAt($body, $pos + 2) === 34 &&
        charCodeAt($body, $pos + 3) === 34;
}

/**
 * Converts four hexidecimal chars to the integer that the
 * string represents. For example, uniCharCode('0','0','0','f')
 * will return 15, and uniCharCode('0','0','f','f') returns 255.
 *
 * @param string $a
 * @param string $b
 * @param string $c
 * @param string $d
 * @return string
 */
function uniCharCode(string $a, string $b, string $c, string $d): string
{
    return (\dechex(ordUTF8($a)) << 12) |
        (\dechex(ordUTF8($b)) << 8) |
        (\dechex(ordUTF8($c)) << 4) |
        \dechex(ordUTF8($d));
}

/**
 * @param string $value
 * @return bool
 */
function isOperation(string $value): bool
{
    // TODO: Benchmark
    return \in_array($value, ['query', 'mutation', 'subscription'], true);
}

/**
 * @param array $location
 * @return array|null
 */
function locationShorthandToArray(array $location): ?array
{
    return isset($location[0], $location[1]) ? ['line' => $location[0], 'column' => $location[1]] : null;
}

/**
 * @param array $locations
 * @return array
 */
function locationsShorthandToArray(array $locations): array
{
    return array_map(function ($shorthand) {
        return locationShorthandToArray($shorthand);
    }, $locations);
}

/**
 * @param array $array
 * @return string
 */
function block(array $array): string
{
    return !empty($array) ? "{\n" . indent(implode("\n", $array)) . "\n}" : '';
}

/**
 * @param string      $start
 * @param null|string $maybeString
 * @param null|string $end
 * @return string
 */
function wrap(string $start, ?string $maybeString = null, ?string $end = null): string
{
    return null !== $maybeString ? ($start . $maybeString . ($end ?? '')) : '';
}

/**
 * @param null|string $maybeString
 * @return string
 */
function indent(?string $maybeString): string
{
    return null !== $maybeString ? '  ' . preg_replace("/\n/", "\n  ", $maybeString) : '';
}

/**
 * @param string $str
 * @return string
 */
function dedent(string $str): string
{
    $trimmed = \preg_replace("/^\n*|[ \t]*$/", '', $str); // Remove leading newline and trailing whitespace
    $matches = [];
    \preg_match("/^[ \t]*/", $trimmed, $matches); // Figure out indent
    $indent = $matches[0];
    return \str_replace($indent, '', $trimmed); // Remove indent
}


1			<?php
2
3			namespace Digia\GraphQL\Language;
4
5			/**
6			* @param int $cp
7			* @return string
8			*/
9			function chrUTF8(int $cp)
10			{
11			return \mb_convert_encoding(\pack('N', $cp), 'UTF-8', 'UCS-4BE');
12			}
13
14			/**
15			* @param string $string
16			* @return int
17			*/
18			function ordUTF8(string $string)
19			{
20			[, $ord] = \unpack('N', \mb_convert_encoding($string, 'UCS-4BE', 'UTF-8'));
21
22			return $ord;
23			}
24
25			/**
26			* @param string $string
27			* @param int $position
28			* @param bool $convertEncoding
29			* @return int
30			*/
31			function charCodeAt(string $string, int $position, bool $convertEncoding = false): int
32			{
33			$char = \mb_substr($string, $position, 1);
34			return $convertEncoding ? ordUTF8($char) : \ord($char);
35			}
36
37			/**
38			* @param int $code
39			* @return string
40			*/
41			function printCharCode(int $code): string
42			{
43			if ($code === 0x0000) {
44			return '<EOF>';
45			}
46			return $code < 0x007F
47			// Trust JSON for ASCII.
48			? \json_encode(chrUTF8($code))
49			// Otherwise print the escaped form.
50			: '"\\u' . \dechex($code) . '"';
51			}
52
53			/**
54			* @param string $string
55			* @param int $start
56			* @param int\|null $end
57			* @return string
58			*/
59			function sliceString(string $string, int $start, int $end = null): string
60			{
61			$length = $end !== null ? $end - $start : \mb_strlen($string) - $start;
62			return \mb_substr($string, $start, $length);
63			}
64
65			/**
66			* @param int $code
67			* @return bool
68			*/
69			function isLetter(int $code): bool
70			{
71			return ($code >= 65 && $code <= 90) \|\| ($code >= 97 && $code <= 122); // a-z or A-Z
72			}
73
74			/**
75			* @param int $code
76			* @return bool
77			*/
78			function isNumber(int $code): bool
79			{
80			return $code >= 48 && $code <= 57; // 0-9
81			}
82
83			/**
84			* @param int $code
85			* @return bool
86			*/
87			function isUnderscore(int $code): bool
88			{
89			return $code === 95; // _
90			}
91
92			/**
93			* @param int $code
94			* @return bool
95			*/
96			function isAlphaNumeric(int $code): bool
97			{
98			return isLetter($code) \|\| isNumber($code) \|\| isUnderscore($code);
99			}
100
101			/**
102			* @param int $code
103			* @return bool
104			*/
105			function isLineTerminator(int $code): bool
106			{
107			return $code === 0x000a \|\| $code === 0x000d;
108			}
109
110			/**
111			* @param int $code
112			* @return bool
113			*/
114			function isSourceCharacter(int $code): bool
115			{
116			return $code < 0x0020 && $code !== 0x0009; // any source character EXCEPT HT (Horizontal Tab)
117			}
118
119			/**
120			* @param string $body
121			* @param int $code
122			* @param int $pos
123			* @return bool
124			*/
125			function isSpread(string $body, int $code, int $pos): bool
126			{
127			return $code === 46 &&
128			charCodeAt($body, $pos + 1) === 46 &&
129			charCodeAt($body, $pos + 2) === 46; // ...
130			}
131
132			/**
133			* @param string $body
134			* @param int $code
135			* @param int $pos
136			* @return bool
137			*/
138			function isString(string $body, int $code, int $pos): bool
139			{
140			return $code === 34 && charCodeAt($body, $pos + 1) !== 34;
141			}
142
143			/**
144			* @param string $body
145			* @param int $code
146			* @param int $pos
147			* @return bool
148			*/
149			function isTripleQuote(string $body, int $code, int $pos): bool
150			{
151			return $code === 34 &&
152			charCodeAt($body, $pos + 1) === 34 &&
153			charCodeAt($body, $pos + 2) === 34; // """
154			}
155
156			/**
157			* @param string $body
158			* @param int $code
159			* @param int $pos
160			* @return bool
161			*/
162			function isEscapedTripleQuote(
163			string $body,
164			int $code,
165			int $pos
166			): bool {
167			return $code === 92 &&
168			charCodeAt($body, $pos + 1) === 34 &&
169			charCodeAt($body, $pos + 2) === 34 &&
170			charCodeAt($body, $pos + 3) === 34;
171			}
172
173			/**
174			* Converts four hexidecimal chars to the integer that the
175			* string represents. For example, uniCharCode('0','0','0','f')
176			* will return 15, and uniCharCode('0','0','f','f') returns 255.
177			*
178			* @param string $a
179			* @param string $b
180			* @param string $c
181			* @param string $d
182			* @return string
183			*/
184			function uniCharCode(string $a, string $b, string $c, string $d): string
185			{
186			return (\dechex(ordUTF8($a)) << 12) \|
187			(\dechex(ordUTF8($b)) << 8) \|
188			(\dechex(ordUTF8($c)) << 4) \|
189			\dechex(ordUTF8($d));
190			}
191
192			/**
193			* @param string $value
194			* @return bool
195			*/
196			function isOperation(string $value): bool
197			{
198			// TODO: Benchmark
199			return \in_array($value, ['query', 'mutation', 'subscription'], true);
200			}
201
202			/**
203			* @param array $location
204			* @return array\|null
205			*/
206			function locationShorthandToArray(array $location): ?array
207			{
208			return isset($location[0], $location[1]) ? ['line' => $location[0], 'column' => $location[1]] : null;
209			}
210
211			/**
212			* @param array $locations
213			* @return array
214			*/
215			function locationsShorthandToArray(array $locations): array
216			{
217			return array_map(function ($shorthand) {
218			return locationShorthandToArray($shorthand);
219			}, $locations);
220			}
221
222			/**
223			* @param array $array
224			* @return string
225			*/
226			function block(array $array): string
227			{
228			return !empty($array) ? "{\n" . indent(implode("\n", $array)) . "\n}" : '';
229			}
230
231			/**
232			* @param string $start
233			* @param null\|string $maybeString
234			* @param null\|string $end
235			* @return string
236			*/
237			function wrap(string $start, ?string $maybeString = null, ?string $end = null): string
238			{
239			return null !== $maybeString ? ($start . $maybeString . ($end ?? '')) : '';
240			}
241
242			/**
243			* @param null\|string $maybeString
244			* @return string
245			*/
246			function indent(?string $maybeString): string
247			{
248			return null !== $maybeString ? ' ' . preg_replace("/\n/", "\n ", $maybeString) : '';
249			}
250
251			/**
252			* @param string $str
253			* @return string
254			*/
255			function dedent(string $str): string
256			{
257			$trimmed = \preg_replace("/^\n\|[ \t]$/", '', $str); // Remove leading newline and trailing whitespace
258			$matches = [];
259			\preg_match("/^[ \t]*/", $trimmed, $matches); // Figure out indent
260			$indent = $matches[0];
261			return \str_replace($indent, '', $trimmed); // Remove indent
262			}
263

digiaonline / graphql-php

Pull Request — master (#184)

isString() A

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