File "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