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<?php
/**
* FDStandard_Sniffs_Foreach_ReferenceSniff.
*
* Checks that foreach using references are followed by an unset
*
* @author Côme Bernigaud <come.bernigaud@laposte.net>
* @license http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
*/
class FDStandard_Sniffs_Foreach_ReferenceSniff implements PHP_CodeSniffer_Sniff
{
/**
* Returns an array of tokens this test wants to listen for.
*
* @return array
*/
public function register()
{
return array(T_FOREACH);
}//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();
/* Find the as token of the foreach */
$as = $phpcsFile->findNext(T_AS, $tokens[$stackPtr]['parenthesis_opener']+1, $tokens[$stackPtr]['parenthesis_closer']);
if (!$as) {
return;
}
/* Search for a reference between as and closing parenthesis */
$ref = $phpcsFile->findNext(T_BITWISE_AND, $as+1, $tokens[$stackPtr]['parenthesis_closer']);
if (!$ref) {
return;
}
$error = 'Foreach token using a reference should unset it afterwards';
if ($next = $phpcsFile->findNext(T_WHITESPACE, $tokens[$stackPtr]['scope_closer']+1, NULL, TRUE)) {
if ($tokens[$next]['content'] == 'unset') {
return;
}
$error .= ' (Expected unset, found '.$tokens[$next]['content'].')';
}
$phpcsFile->addError($error, $stackPtr, 'UnsetReference');
}//end process()
}//end class
?>
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