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* Squiz_Sniffs_Classes_DuplicatePropertySniff.
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* @package PHP_CodeSniffer
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* @author Greg Sherwood <gsherwood@squiz.net>
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* @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
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* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
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* @link http://pear.php.net/package/PHP_CodeSniffer
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* Squiz_Sniffs_Classes_DuplicatePropertySniff.
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* Ensures JS classes don't contain duplicate property names.
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* @package PHP_CodeSniffer
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* @author Greg Sherwood <gsherwood@squiz.net>
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* @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
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* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
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* @version Release: 1.5.5
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* @link http://pear.php.net/package/PHP_CodeSniffer
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class Squiz_Sniffs_Classes_DuplicatePropertySniff implements PHP_CodeSniffer_Sniff
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* A list of tokenizers this sniff supports.
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public $supportedTokenizers = array('JS');
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* Returns an array of tokens this test wants to listen for.
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public function register()
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return array(T_OBJECT);
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* Processes this test, when one of its tokens is encountered.
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* @param PHP_CodeSniffer_File $phpcsFile The current file being processed.
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* @param int $stackPtr The position of the current token in the
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* stack passed in $tokens.
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public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
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$tokens = $phpcsFile->getTokens();
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$start = $tokens[$stackPtr]['scope_opener'];
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$end = $tokens[$stackPtr]['scope_closer'];
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$properties = array();
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$wantedTokens = array(
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$next = $phpcsFile->findNext($wantedTokens, ($start + 1), $end);
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while ($next !== false && $next < $end) {
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// Skip nested objects.
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if ($tokens[$next]['code'] === T_OPEN_CURLY_BRACKET) {
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$next = $tokens[$next]['bracket_closer'];
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$propName = $tokens[$next]['content'];
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if (isset($properties[$propName]) === true) {
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$error = 'Duplicate property definition found for "%s"; previously defined on line %s';
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$tokens[$properties[$propName]]['line'],
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$phpcsFile->addError($error, $next, 'Found', $data);
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$properties[$propName] = $next;
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$next = $phpcsFile->findNext($wantedTokens, ($next + 1), $end);