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DuplicatePropertySniff.php
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<?php /** * Ensures JS classes don't contain duplicate property names. * * @author Greg Sherwood <gsherwood@squiz.net> * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600) * @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence */ namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\Classes; use PHP_CodeSniffer\Files\File; use PHP_CodeSniffer\Sniffs\Sniff; class DuplicatePropertySniff implements Sniff { /** * A list of tokenizers this sniff supports. * * @var array */ public $supportedTokenizers = ['JS']; /** * Returns an array of tokens this test wants to listen for. * * @return array */ public function register() { return [T_OBJECT]; }//end register() /** * Processes this test, when one of its tokens is encountered. * * @param \PHP_CodeSniffer\Files\File $phpcsFile The current file being processed. * @param int $stackPtr The position of the current token in the * stack passed in $tokens. * * @return void */ public function process(File $phpcsFile, $stackPtr) { $tokens = $phpcsFile->getTokens(); $properties = []; $wantedTokens = [ T_PROPERTY, T_OBJECT, ]; $next = $phpcsFile->findNext($wantedTokens, ($stackPtr + 1), $tokens[$stackPtr]['bracket_closer']); while ($next !== false && $next < $tokens[$stackPtr]['bracket_closer']) { if ($tokens[$next]['code'] === T_OBJECT) { // Skip nested objects. $next = $tokens[$next]['bracket_closer']; } else { $propName = $tokens[$next]['content']; if (isset($properties[$propName]) === true) { $error = 'Duplicate property definition found for "%s"; previously defined on line %s'; $data = [ $propName, $tokens[$properties[$propName]]['line'], ]; $phpcsFile->addError($error, $next, 'Found', $data); } $properties[$propName] = $next; }//end if $next = $phpcsFile->findNext($wantedTokens, ($next + 1), $tokens[$stackPtr]['bracket_closer']); }//end while }//end process() }//end class