Completed
Push — master ( b3210a...683bc5 )
by Wim
02:17
created

NewTypeCastsSniff::process()   C

Complexity

Conditions 8
Paths 10

Size

Total Lines 39
Code Lines 23

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 39
rs 5.3846
c 0
b 0
f 0
cc 8
eloc 23
nc 10
nop 2
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<?php
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/**
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 * \PHPCompatibility\Sniffs\PHP\NewTypeCastsSniff.
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 *
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 * @category PHP
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 * @package  PHPCompatibility
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 * @author   Juliette Reinders Folmer <[email protected]>
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 */
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namespace PHPCompatibility\Sniffs\PHP;
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use PHPCompatibility\AbstractNewFeatureSniff;
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/**
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 * \PHPCompatibility\Sniffs\PHP\NewTypeCastsSniff.
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 *
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 * @category PHP
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 * @package  PHPCompatibility
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 * @author   Juliette Reinders Folmer <[email protected]>
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 */
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class NewTypeCastsSniff extends AbstractNewFeatureSniff
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{
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    /**
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     * A list of new type casts, not present in older versions.
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     *
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     * The array lists : version number with false (not present) or true (present).
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     * If's sufficient to list the first version where the keyword appears.
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     *
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     * @var array(string => array(string => int|string|null))
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     */
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    protected $newTypeCasts = array(
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        'T_UNSET_CAST' => array(
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            '4.4'         => false,
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            '5.0'         => true,
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            'description' => 'The unset cast',
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        ),
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        'T_BINARY_CAST' => array(
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            '5.2.0'       => false,
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            '5.2.1'       => true,
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            'description' => 'The binary cast',
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        ),
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    );
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    /**
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     * Returns an array of tokens this test wants to listen for.
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     *
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     * @return array
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     */
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    public function register()
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    {
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        $tokens = array();
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        foreach ($this->newTypeCasts as $token => $versions) {
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            if (defined($token)) {
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                $tokens[] = constant($token);
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            }
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        }
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        /*
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         * Work around tokenizer issues.
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         *
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         * - (binary) cast is incorrectly tokenized as T_STRING_CAST by PHP and PHPCS.
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         * - b"something" binary cast is incorrectly tokenized as T_CONSTANT_ENCAPSED_STRING by PHP and PHPCS.
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         *
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         * @link https://github.com/squizlabs/PHP_CodeSniffer/issues/1574
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         */
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        $tokens[] = T_STRING_CAST;
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        $tokens[] = T_CONSTANT_ENCAPSED_STRING;
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        return $tokens;
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    }//end register()
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    /**
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     * Processes this test, when one of its tokens is encountered.
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     *
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     * @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
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     * @param int                   $stackPtr  The position of the current token in
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     *                                         the stack passed in $tokens.
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     *
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     * @return void
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     */
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    public function process(\PHP_CodeSniffer_File $phpcsFile, $stackPtr)
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    {
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        $tokens    = $phpcsFile->getTokens();
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        $tokenType = $tokens[$stackPtr]['type'];
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        // Detect incorrectly tokenized binary casts.
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        if (isset($this->newTypeCasts[$tokenType]) === false) {
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            $tokenContent = $tokens[$stackPtr]['content'];
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            switch ($tokenType) {
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                case 'T_STRING_CAST':
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                    if (preg_match('`^\(\s*binary\s*\)$`i', $tokenContent) !== 1) {
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                        return;
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                    }
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                    $tokenType = 'T_BINARY_CAST';
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                    break;
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                case 'T_CONSTANT_ENCAPSED_STRING':
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                    if (strpos($tokenContent, 'b"') === 0 && substr($tokenContent, -1) === '"') {
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                        $tokenType = 'T_BINARY_CAST';
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                    } else {
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                        return;
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                    }
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                    break;
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            }
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        }
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        // If the translation did not yield one of the tokens we are looking for, bow out.
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        if (isset($this->newTypeCasts[$tokenType]) === false) {
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            return;
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        }
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        $itemInfo = array(
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            'name'    => $tokenType,
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            'content' => $tokens[$stackPtr]['content'],
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        );
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        $this->handleFeature($phpcsFile, $stackPtr, $itemInfo);
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    }//end process()
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    /**
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     * Get the relevant sub-array for a specific item from a multi-dimensional array.
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     *
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     * @param array $itemInfo Base information about the item.
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     *
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     * @return array Version and other information about the item.
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     */
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    public function getItemArray(array $itemInfo)
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    {
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        return $this->newTypeCasts[$itemInfo['name']];
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    }
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    /**
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     * Get an array of the non-PHP-version array keys used in a sub-array.
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     *
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     * @return array
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     */
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    protected function getNonVersionArrayKeys()
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    {
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        return array('description');
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    }
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    /**
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     * Retrieve the relevant detail (version) information for use in an error message.
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     *
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     * @param array $itemArray Version and other information about the item.
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     * @param array $itemInfo  Base information about the item.
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     *
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     * @return array
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     */
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    public function getErrorInfo(array $itemArray, array $itemInfo)
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    {
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        $errorInfo = parent::getErrorInfo($itemArray, $itemInfo);
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        $errorInfo['description'] = $itemArray['description'];
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        return $errorInfo;
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    }
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    /**
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     * Filter the error message before it's passed to PHPCS.
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     *
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     * @param string $error     The error message which was created.
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     * @param array  $itemInfo  Base information about the item this error message applied to.
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     * @param array  $errorInfo Detail information about an item this error message applied to.
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     *
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     * @return string
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     */
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    protected function filterErrorMsg($error, array $itemInfo, array $errorInfo)
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    {
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        return $error . '. Found: %s';
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    }
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    /**
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     * Filter the error data before it's passed to PHPCS.
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     *
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     * @param array $data      The error data array which was created.
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     * @param array $itemInfo  Base information about the item this error message applied to.
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     * @param array $errorInfo Detail information about an item this error message applied to.
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     *
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     * @return array
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     */
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    protected function filterErrorData(array $data, array $itemInfo, array $errorInfo)
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    {
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        $data[0] = $errorInfo['description'];
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        $data[]  = $itemInfo['content'];
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        return $data;
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    }
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}//end class
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