PHPCompatibility_Sniffs_PHP_NewKeywordsSniff::process() - Code Metrics - Inspection of "Rename the phpunit.xml config file to use `.dist`..." - wimg/PHPCompatibility - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — feature/rename-phpunit-config ( 357a24...3649e1 )

by Juliette

created 2017-07-18 19:25 UTC

_Sniffs_PHP_NewKeywordsSniff::process() D

↳ Parent: NewKeywordsSniff

Complexity

Conditions	16
Paths	31

Size

Total Lines	82
Code Lines	33

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	82
rs	4.9422
c	0
b	0
f	0
cc	16
eloc	33
nc	31
nop	2

How to fix Long Method Complexity

<?php
/**
 * \PHPCompatibility\Sniffs\PHP\NewKeywordsSniff.
 *
 * @category  PHP
 * @package   PHPCompatibility
 * @author    Wim Godden <[email protected]>
 * @copyright 2013 Cu.be Solutions bvba
 */

namespace PHPCompatibility\Sniffs\PHP;

use PHPCompatibility\AbstractNewFeatureSniff;

/**
 * \PHPCompatibility\Sniffs\PHP\NewKeywordsSniff.
 *
 * @category  PHP
 * @package   PHPCompatibility
 * @author    Wim Godden <[email protected]>
 * @copyright 2013 Cu.be Solutions bvba
 */
class NewKeywordsSniff extends AbstractNewFeatureSniff
{

    /**
     * A list of new keywords, not present in older versions.
     *
     * The array lists : version number with false (not present) or true (present).
     * If's sufficient to list the last version which did not contain the keyword.
     *
     * Description will be used as part of the error message.
     * Condition is the name of a callback method within this class or the parent class
     * which checks whether the token complies with a certain condition.
     * The callback function will be passed the $phpcsFile and the $stackPtr.
     * The callback function should return `true` if the condition is met and the
     * error should *not* be thrown.
     *
     * @var array(string => array(string => int|string|null))
     */
    protected $newKeywords = array(
        'T_HALT_COMPILER' => array(
            '5.0' => false,
            '5.1' => true,
            'description' => '"__halt_compiler" keyword',
        ),
        'T_CONST' => array(
            '5.2' => false,
            '5.3' => true,
            'description' => '"const" keyword',
            'condition' => 'isClassConstant', // Keyword is only new when not in class context.
        ),
        'T_CALLABLE' => array(
            '5.3' => false,
            '5.4' => true,
            'description' => '"callable" keyword',
            'content' => 'callable',
        ),
        'T_DIR' => array(
            '5.2' => false,
            '5.3' => true,
            'description' => '__DIR__ magic constant',
            'content' => '__DIR__',
        ),
        'T_GOTO' => array(
            '5.2' => false,
            '5.3' => true,
            'description' => '"goto" keyword',
            'content' => 'goto',
        ),
        'T_INSTEADOF' => array(
            '5.3' => false,
            '5.4' => true,
            'description' => '"insteadof" keyword (for traits)',
            'content' => 'insteadof',
        ),
        'T_NAMESPACE' => array(
            '5.2' => false,
            '5.3' => true,
            'description' => '"namespace" keyword',
            'content' => 'namespace',
        ),
        'T_NS_C' => array(
            '5.2' => false,
            '5.3' => true,
            'description' => '__NAMESPACE__ magic constant',
            'content' => '__NAMESPACE__',
        ),
        'T_USE' => array(
            '5.2' => false,
            '5.3' => true,
            'description' => '"use" keyword (for traits/namespaces/anonymous functions)',
        ),
        'T_TRAIT' => array(
            '5.3' => false,
            '5.4' => true,
            'description' => '"trait" keyword',
            'content' => 'trait',
        ),
        'T_TRAIT_C' => array(
            '5.3' => false,
            '5.4' => true,
            'description' => '__TRAIT__ magic constant',
            'content' => '__TRAIT__',
        ),
        // The specifics for distinguishing between 'yield' and 'yield from' are dealt
        // with in the translation logic.
        // This token has to be placed above the `T_YIELD` token in this array to allow for this.
        'T_YIELD_FROM' => array(
            '5.6' => false,
            '7.0' => true,
            'description' => '"yield from" keyword (for generators)',
            'content' => 'yield',
        ),
        'T_YIELD' => array(
            '5.4' => false,
            '5.5' => true,
            'description' => '"yield" keyword (for generators)',
            'content' => 'yield',
        ),
        'T_FINALLY' => array(
            '5.4' => false,
            '5.5' => true,
            'description' => '"finally" keyword (in exception handling)',
            'content' => 'finally',
        ),
    );

    /**
     * Translation table for T_STRING tokens.
     *
     * Will be set up from the register() method.
     *
     * @var array(string => string)
     */
    protected $translateContentToToken = array();


    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array
     */
    public function register()
    {
        $tokens    = array();
        $translate = array();
        foreach ($this->newKeywords as $token => $versions) {
            if (defined($token)) {
                $tokens[] = constant($token);
            }
            if (isset($versions['content'])) {
                $translate[$versions['content']] = $token;
            }
        }

        /*
         * Deal with tokens not recognized by the PHP version the sniffer is run
         * under and (not correctly) compensated for by PHPCS.
         */
        if (empty($translate) === false) {
            $this->translateContentToToken = $translate;
            $tokens[] = T_STRING;
        }

        return $tokens;

    }//end register()


    /**
     * Processes this test, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
     * @param int                   $stackPtr  The position of the current token in
     *                                         the stack passed in $tokens.
     *
     * @return void
     */
    public function process(\PHP_CodeSniffer_File $phpcsFile, $stackPtr)
    {
        $tokens    = $phpcsFile->getTokens();
        $tokenType = $tokens[$stackPtr]['type'];

        // Allow for dealing with multi-token keywords, like "yield from".
        $end = $stackPtr;

        // Translate T_STRING token if necessary.
        if ($tokens[$stackPtr]['type'] === 'T_STRING') {
            $content = $tokens[$stackPtr]['content'];
            if (isset($this->translateContentToToken[$content]) === false) {
                // Not one of the tokens we're looking for.
                return;
            }

            $tokenType = $this->translateContentToToken[$content];
        }

        /*
         * Special case: distinguish between `yield` and `yield from`.
         *
         * PHPCS currently (at least up to v 3.0.1) does not backfill for the
         * `yield` nor the `yield from` keywords.
         * See: https://github.com/squizlabs/PHP_CodeSniffer/issues/1524
         *
         * In PHP < 5.5, both `yield` as well as `from` are tokenized as T_STRING.
         * In PHP 5.5 - 5.6, `yield` is tokenized as T_YIELD and `from` as T_STRING,
         * but the `T_YIELD_FROM` token *is* defined in PHP.
         * In PHP 7.0+ both are tokenized as their respective token, however,
         * a multi-line "yield from" is tokenized as two tokens.
         */
        if ($tokenType === 'T_YIELD') {
            $nextToken = $phpcsFile->findNext(T_WHITESPACE, ($end + 1), null, true);
            if ($tokens[$nextToken]['code'] === T_STRING
                && $tokens[$nextToken]['content'] === 'from'
            ) {
                $tokenType = 'T_YIELD_FROM';
                $end       = $nextToken;
            }
            unset($nextToken);
        }

        if ($tokenType === 'T_YIELD_FROM' && $tokens[($stackPtr - 1)]['type'] === 'T_YIELD_FROM') {
            // Multi-line "yield from", no need to report it twice.
            return;
        }

        if (isset($this->newKeywords[$tokenType]) === false) {
            return;
        }

        $nextToken = $phpcsFile->findNext(\PHP_CodeSniffer_Tokens::$emptyTokens, ($end + 1), null, true);
        $prevToken = $phpcsFile->findPrevious(\PHP_CodeSniffer_Tokens::$emptyTokens, ($stackPtr - 1), null, true);


        // Skip attempts to use keywords as functions or class names - the former
        // will be reported by ForbiddenNamesAsInvokedFunctionsSniff, whilst the
        // latter will be (partially) reported by the ForbiddenNames sniff.
        // Either type will result in false-positives when targetting lower versions
        // of PHP where the name was not reserved, unless we explicitly check for
        // them.
        if (($nextToken === false
                || $tokens[$nextToken]['type'] !== 'T_OPEN_PARENTHESIS')
            && ($prevToken === false
                || $tokens[$prevToken]['type'] !== 'T_CLASS'
                || $tokens[$prevToken]['type'] !== 'T_INTERFACE')
        ) {
            // Skip based on token scope condition.
            if (isset($this->newKeywords[$tokenType]['condition'])
                && call_user_func(array($this, $this->newKeywords[$tokenType]['condition']), $phpcsFile, $stackPtr) === true
            ) {
                return;
            }

            $itemInfo = array(
                'name'   => $tokenType,
            );
            $this->handleFeature($phpcsFile, $stackPtr, $itemInfo);
        }

    }//end process()


    /**
     * Get the relevant sub-array for a specific item from a multi-dimensional array.
     *
     * @param array $itemInfo Base information about the item.
     *
     * @return array Version and other information about the item.
     */
    public function getItemArray(array $itemInfo)
    {
        return $this->newKeywords[$itemInfo['name']];
    }


    /**
     * Get an array of the non-PHP-version array keys used in a sub-array.
     *
     * @return array
     */
    protected function getNonVersionArrayKeys()
    {
        return array(
            'description',
            'condition',
            'content',
        );
    }


    /**
     * Retrieve the relevant detail (version) information for use in an error message.
     *
     * @param array $itemArray Version and other information about the item.
     * @param array $itemInfo  Base information about the item.
     *
     * @return array
     */
    public function getErrorInfo(array $itemArray, array $itemInfo)
    {
        $errorInfo = parent::getErrorInfo($itemArray, $itemInfo);
        $errorInfo['description'] = $itemArray['description'];

        return $errorInfo;

    }


    /**
     * Allow for concrete child classes to filter the error data before it's passed to PHPCS.
     *
     * @param array $data      The error data array which was created.
     * @param array $itemInfo  Base information about the item this error message applied to.
     * @param array $errorInfo Detail information about an item this error message applied to.
     *
     * @return array
     */
    protected function filterErrorData(array $data, array $itemInfo, array $errorInfo)
    {
        $data[0] = $errorInfo['description'];
        return $data;
    }


}//end class


1			<?php
2			/**
3			* \PHPCompatibility\Sniffs\PHP\NewKeywordsSniff.
4			*
5			* @category PHP
6			* @package PHPCompatibility
7			* @author Wim Godden <[email protected]>
8			* @copyright 2013 Cu.be Solutions bvba
9			*/
10
11			namespace PHPCompatibility\Sniffs\PHP;
12
13			use PHPCompatibility\AbstractNewFeatureSniff;
14
15			/**
16			* \PHPCompatibility\Sniffs\PHP\NewKeywordsSniff.
17			*
18			* @category PHP
19			* @package PHPCompatibility
20			* @author Wim Godden <[email protected]>
21			* @copyright 2013 Cu.be Solutions bvba
22			*/
23			class NewKeywordsSniff extends AbstractNewFeatureSniff
24			{
25
26			/**
27			* A list of new keywords, not present in older versions.
28			*
29			* The array lists : version number with false (not present) or true (present).
30			* If's sufficient to list the last version which did not contain the keyword.
31			*
32			* Description will be used as part of the error message.
33			* Condition is the name of a callback method within this class or the parent class
34			* which checks whether the token complies with a certain condition.
35			* The callback function will be passed the $phpcsFile and the $stackPtr.
36			* The callback function should return `true` if the condition is met and the
37			* error should not be thrown.
38			*
39			* @var array(string => array(string => int\|string\|null))
40			*/
41			protected $newKeywords = array(
42			'T_HALT_COMPILER' => array(
43			'5.0' => false,
44			'5.1' => true,
45			'description' => '"__halt_compiler" keyword',
46			),
47			'T_CONST' => array(
48			'5.2' => false,
49			'5.3' => true,
50			'description' => '"const" keyword',
51			'condition' => 'isClassConstant', // Keyword is only new when not in class context.
52			),
53			'T_CALLABLE' => array(
54			'5.3' => false,
55			'5.4' => true,
56			'description' => '"callable" keyword',
57			'content' => 'callable',
58			),
59			'T_DIR' => array(
60			'5.2' => false,
61			'5.3' => true,
62			'description' => '__DIR__ magic constant',
63			'content' => '__DIR__',
64			),
65			'T_GOTO' => array(
66			'5.2' => false,
67			'5.3' => true,
68			'description' => '"goto" keyword',
69			'content' => 'goto',
70			),
71			'T_INSTEADOF' => array(
72			'5.3' => false,
73			'5.4' => true,
74			'description' => '"insteadof" keyword (for traits)',
75			'content' => 'insteadof',
76			),
77			'T_NAMESPACE' => array(
78			'5.2' => false,
79			'5.3' => true,
80			'description' => '"namespace" keyword',
81			'content' => 'namespace',
82			),
83			'T_NS_C' => array(
84			'5.2' => false,
85			'5.3' => true,
86			'description' => '__NAMESPACE__ magic constant',
87			'content' => '__NAMESPACE__',
88			),
89			'T_USE' => array(
90			'5.2' => false,
91			'5.3' => true,
92			'description' => '"use" keyword (for traits/namespaces/anonymous functions)',
93			),
94			'T_TRAIT' => array(
95			'5.3' => false,
96			'5.4' => true,
97			'description' => '"trait" keyword',
98			'content' => 'trait',
99			),
100			'T_TRAIT_C' => array(
101			'5.3' => false,
102			'5.4' => true,
103			'description' => '__TRAIT__ magic constant',
104			'content' => '__TRAIT__',
105			),
106			// The specifics for distinguishing between 'yield' and 'yield from' are dealt
107			// with in the translation logic.
108			// This token has to be placed above the `T_YIELD` token in this array to allow for this.
109			'T_YIELD_FROM' => array(
110			'5.6' => false,
111			'7.0' => true,
112			'description' => '"yield from" keyword (for generators)',
113			'content' => 'yield',
114			),
115			'T_YIELD' => array(
116			'5.4' => false,
117			'5.5' => true,
118			'description' => '"yield" keyword (for generators)',
119			'content' => 'yield',
120			),
121			'T_FINALLY' => array(
122			'5.4' => false,
123			'5.5' => true,
124			'description' => '"finally" keyword (in exception handling)',
125			'content' => 'finally',
126			),
127			);
128
129			/**
130			* Translation table for T_STRING tokens.
131			*
132			* Will be set up from the register() method.
133			*
134			* @var array(string => string)
135			*/
136			protected $translateContentToToken = array();
137
138
139			/**
140			* Returns an array of tokens this test wants to listen for.
141			*
142			* @return array
143			*/
144			public function register()
145			{
146			$tokens = array();
147			$translate = array();
148			foreach ($this->newKeywords as $token => $versions) {
149			if (defined($token)) {
150			$tokens[] = constant($token);
151			}
152			if (isset($versions['content'])) {
153			$translate[$versions['content']] = $token;
154			}
155			}
156
157			/*
158			* Deal with tokens not recognized by the PHP version the sniffer is run
159			* under and (not correctly) compensated for by PHPCS.
160			*/
161			if (empty($translate) === false) {
162			$this->translateContentToToken = $translate;
163			$tokens[] = T_STRING;
164			}
165
166			return $tokens;
167
168			}//end register()
169
170
171			/**
172			* Processes this test, when one of its tokens is encountered.
173			*
174			* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
175			* @param int $stackPtr The position of the current token in
176			* the stack passed in $tokens.
177			*
178			* @return void
179			*/
180			public function process(\PHP_CodeSniffer_File $phpcsFile, $stackPtr)
181			{
182			$tokens = $phpcsFile->getTokens();
183			$tokenType = $tokens[$stackPtr]['type'];
184
185			// Allow for dealing with multi-token keywords, like "yield from".
186			$end = $stackPtr;
187
188			// Translate T_STRING token if necessary.
189			if ($tokens[$stackPtr]['type'] === 'T_STRING') {
190			$content = $tokens[$stackPtr]['content'];
191			if (isset($this->translateContentToToken[$content]) === false) {
192			// Not one of the tokens we're looking for.
193			return;
194			}
195
196			$tokenType = $this->translateContentToToken[$content];
197			}
198
199			/*
200			* Special case: distinguish between `yield` and `yield from`.
201			*
202			* PHPCS currently (at least up to v 3.0.1) does not backfill for the
203			* `yield` nor the `yield from` keywords.
204			* See: https://github.com/squizlabs/PHP_CodeSniffer/issues/1524
205			*
206			* In PHP < 5.5, both `yield` as well as `from` are tokenized as T_STRING.
207			* In PHP 5.5 - 5.6, `yield` is tokenized as T_YIELD and `from` as T_STRING,
208			* but the `T_YIELD_FROM` token is defined in PHP.
209			* In PHP 7.0+ both are tokenized as their respective token, however,
210			* a multi-line "yield from" is tokenized as two tokens.
211			*/
212			if ($tokenType === 'T_YIELD') {
213			$nextToken = $phpcsFile->findNext(T_WHITESPACE, ($end + 1), null, true);
214			if ($tokens[$nextToken]['code'] === T_STRING
215			&& $tokens[$nextToken]['content'] === 'from'
216			) {
217			$tokenType = 'T_YIELD_FROM';
218			$end = $nextToken;
219			}
220			unset($nextToken);
221			}
222
223			if ($tokenType === 'T_YIELD_FROM' && $tokens[($stackPtr - 1)]['type'] === 'T_YIELD_FROM') {
224			// Multi-line "yield from", no need to report it twice.
225			return;
226			}
227
228			if (isset($this->newKeywords[$tokenType]) === false) {
229			return;
230			}
231
232			$nextToken = $phpcsFile->findNext(\PHP_CodeSniffer_Tokens::$emptyTokens, ($end + 1), null, true);
233			$prevToken = $phpcsFile->findPrevious(\PHP_CodeSniffer_Tokens::$emptyTokens, ($stackPtr - 1), null, true);
234
235
236			// Skip attempts to use keywords as functions or class names - the former
237			// will be reported by ForbiddenNamesAsInvokedFunctionsSniff, whilst the
238			// latter will be (partially) reported by the ForbiddenNames sniff.
239			// Either type will result in false-positives when targetting lower versions
240			// of PHP where the name was not reserved, unless we explicitly check for
241			// them.
242			if (($nextToken === false
243			\|\| $tokens[$nextToken]['type'] !== 'T_OPEN_PARENTHESIS')
244			&& ($prevToken === false
245			\|\| $tokens[$prevToken]['type'] !== 'T_CLASS'
246			\|\| $tokens[$prevToken]['type'] !== 'T_INTERFACE')
247			) {
248			// Skip based on token scope condition.
249			if (isset($this->newKeywords[$tokenType]['condition'])
250			&& call_user_func(array($this, $this->newKeywords[$tokenType]['condition']), $phpcsFile, $stackPtr) === true
251			) {
252			return;
253			}
254
255			$itemInfo = array(
256			'name' => $tokenType,
257			);
258			$this->handleFeature($phpcsFile, $stackPtr, $itemInfo);
259			}
260
261			}//end process()
262
263
264			/**
265			* Get the relevant sub-array for a specific item from a multi-dimensional array.
266			*
267			* @param array $itemInfo Base information about the item.
268			*
269			* @return array Version and other information about the item.
270			*/
271			public function getItemArray(array $itemInfo)
272			{
273			return $this->newKeywords[$itemInfo['name']];
274			}
275
276
277			/**
278			* Get an array of the non-PHP-version array keys used in a sub-array.
279			*
280			* @return array
281			*/
282			protected function getNonVersionArrayKeys()
283			{
284			return array(
285			'description',
286			'condition',
287			'content',
288			);
289			}
290
291
292			/**
293			* Retrieve the relevant detail (version) information for use in an error message.
294			*
295			* @param array $itemArray Version and other information about the item.
296			* @param array $itemInfo Base information about the item.
297			*
298			* @return array
299			*/
300			public function getErrorInfo(array $itemArray, array $itemInfo)
301			{
302			$errorInfo = parent::getErrorInfo($itemArray, $itemInfo);
303			$errorInfo['description'] = $itemArray['description'];
304
305			return $errorInfo;
306
307			}
308
309
310			/**
311			* Allow for concrete child classes to filter the error data before it's passed to PHPCS.
312			*
313			* @param array $data The error data array which was created.
314			* @param array $itemInfo Base information about the item this error message applied to.
315			* @param array $errorInfo Detail information about an item this error message applied to.
316			*
317			* @return array
318			*/
319			protected function filterErrorData(array $data, array $itemInfo, array $errorInfo)
320			{
321			$data[0] = $errorInfo['description'];
322			return $data;
323			}
324
325
326			}//end class
327

wimg / PHPCompatibility

Push — feature/rename-phpunit-config ( 357a24...3649e1 )

_Sniffs_PHP_NewKeywordsSniff::process() D

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