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<?php
/**
* Generic_Sniffs_ControlStructures_InlineControlStructureSniff.
*
* PHP version 5
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@squiz.net>
* @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
* @link http://pear.php.net/package/PHP_CodeSniffer
*/

/**
* Generic_Sniffs_ControlStructures_InlineControlStructureSniff.
*
* Verifies that inline control statements are not present.
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@squiz.net>
* @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
* @version Release: @package_version@
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
class Generic_Sniffs_ControlStructures_InlineControlStructureSniff implements PHP_CodeSniffer_Sniff
{

    /**
* A list of tokenizers this sniff supports.
*
* @var array
*/
    public $supportedTokenizers = array(
                                   'PHP',
                                   'JS',
                                  );

    /**
* If true, an error will be thrown; otherwise a warning.
*
* @var bool
*/
    public $error = true;


    /**
* Returns an array of tokens this test wants to listen for.
*
* @return array
*/
    public function register()
    {
        return array(
                T_IF,
                T_ELSE,
                T_FOREACH,
                T_WHILE,
                T_DO,
                T_SWITCH,
                T_FOR,
               );

    }//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();

        if (isset($tokens[$stackPtr]['scope_opener']) === false) {
            // Ignore the ELSE in ELSE IF. We'll process the IF part later.
            if (($tokens[$stackPtr]['code'] === T_ELSE) && ($tokens[($stackPtr + 2)]['code'] === T_IF)) {
                return;
            }

            if ($tokens[$stackPtr]['code'] === T_WHILE) {
                // This could be from a DO WHILE, which doesn't have an opening brace.
                $lastContent = $phpcsFile->findPrevious(T_WHITESPACE, ($stackPtr - 1), null, true);
                if ($tokens[$lastContent]['code'] === T_CLOSE_CURLY_BRACKET) {
                    $brace = $tokens[$lastContent];
                    if (isset($brace['scope_condition']) === true) {
                        $condition = $tokens[$brace['scope_condition']];
                        if ($condition['code'] === T_DO) {
                            return;
                        }
                    }
                }
            }

            // This is a control structure without an opening brace,
            // so it is an inline statement.
            if ($this->error === true) {
                $phpcsFile->addError('Inline control structures are not allowed', $stackPtr, 'NotAllowed');
            } else {
                $phpcsFile->addWarning('Inline control structures are discouraged', $stackPtr, 'Discouraged');
            }

            return;
        }//end if

    }//end process()


}//end class

?>
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