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<?php
/**
* A class to find T_VARIABLE tokens.
*
* PHP version 5
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@squiz.net>
* @copyright 2006-2011 Squiz Pty Ltd (ABN 77 084 670 600)
* @license http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
if (class_exists('PHP_CodeSniffer_Standards_AbstractScopeSniff', true) === false) {
$error = 'Class PHP_CodeSniffer_Standards_AbstractScopeSniff not found';
throw new PHP_CodeSniffer_Exception($error);
}
/**
* A class to find T_VARIABLE tokens.
*
* This class can distingush between normal T_VARIABLE tokens, and those tokens
* that represent class members. If a class member is encountered, then then
* processMemberVar method is called so the extending class can process it. If
* the token is found to be a normal T_VARIABLE token, then processVariable is
* called.
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@squiz.net>
* @copyright 2006-2011 Squiz Pty Ltd (ABN 77 084 670 600)
* @license http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
* @version Release: 1.3.4
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
abstract class PHP_CodeSniffer_Standards_AbstractVariableSniff extends PHP_CodeSniffer_Standards_AbstractScopeSniff
{
/**
* The end token of the current function that we are in.
*
* @var int
*/
private $_endFunction = -1;
/**
* true if a function is currently open.
*
* @var boolean
*/
private $_functionOpen = false;
/**
* The current PHP_CodeSniffer file that we are processing.
*
* @var PHP_CodeSniffer_File
*/
protected $currentFile = null;
/**
* Constructs an AbstractVariableTest.
*/
public function __construct()
{
$scopes = array(
T_CLASS,
T_INTERFACE,
);
$listen = array(
T_FUNCTION,
T_VARIABLE,
T_DOUBLE_QUOTED_STRING,
T_HEREDOC,
);
parent::__construct($scopes, $listen, true);
}//end __construct()
/**
* Processes the token in the specified PHP_CodeSniffer_File.
*
* @param PHP_CodeSniffer_File $phpcsFile The PHP_CodeSniffer file where this
* token was found.
* @param int $stackPtr The position where the token was found.
* @param array $currScope The current scope opener token.
*
* @return void
*/
protected final function processTokenWithinScope(
PHP_CodeSniffer_File $phpcsFile,
$stackPtr,
$currScope
) {
if ($this->currentFile !== $phpcsFile) {
$this->currentFile = $phpcsFile;
$this->_functionOpen = false;
$this->_endFunction = -1;
}
$tokens = $phpcsFile->getTokens();
if ($stackPtr > $this->_endFunction) {
$this->_functionOpen = false;
}
if ($tokens[$stackPtr]['code'] === T_FUNCTION
&& $this->_functionOpen === false
) {
$this->_functionOpen = true;
$methodProps = $phpcsFile->getMethodProperties($stackPtr);
// If the function is abstract, or is in an interface,
// then set the end of the function to it's closing semicolon.
if ($methodProps['is_abstract'] === true
|| $tokens[$currScope]['code'] === T_INTERFACE
) {
$this->_endFunction
= $phpcsFile->findNext(array(T_SEMICOLON), $stackPtr);
} else {
if (isset($tokens[$stackPtr]['scope_closer']) === false) {
$error = 'Possible parse error: non-abstract method defined as abstract';
$phpcsFile->addWarning($error, $stackPtr);
return;
}
$this->_endFunction = $tokens[$stackPtr]['scope_closer'];
}
}
if ($tokens[$stackPtr]['code'] === T_DOUBLE_QUOTED_STRING
|| $tokens[$stackPtr]['code'] === T_HEREDOC
) {
// Check to see if this string has a variable in it.
$pattern = '|(?<!\\\\)(?:\\\\{2})*\${?[a-zA-Z0-9_]+}?|';
if (preg_match($pattern, $tokens[$stackPtr]['content']) !== 0) {
$this->processVariableInString($phpcsFile, $stackPtr);
}
return;
}
if ($this->_functionOpen === true) {
if ($tokens[$stackPtr]['code'] === T_VARIABLE) {
$this->processVariable($phpcsFile, $stackPtr);
}
} else {
// What if we assign a member variable to another?
// ie. private $_count = $this->_otherCount + 1;.
$this->processMemberVar($phpcsFile, $stackPtr);
}
}//end processTokenWithinScope()
/**
* Processes the token outside the scope in the file.
*
* @param PHP_CodeSniffer_File $phpcsFile The PHP_CodeSniffer file where this
* token was found.
* @param int $stackPtr The position where the token was found.
*
* @return void
*/
protected final function processTokenOutsideScope(
PHP_CodeSniffer_File $phpcsFile,
$stackPtr
) {
$tokens = $phpcsFile->getTokens();
// These variables are not member vars.
if ($tokens[$stackPtr]['code'] === T_VARIABLE) {
$this->processVariable($phpcsFile, $stackPtr);
} else if ($tokens[$stackPtr]['code'] === T_DOUBLE_QUOTED_STRING
|| $tokens[$stackPtr]['code'] === T_HEREDOC
) {
// Check to see if this string has a variable in it.
$pattern = '|(?<!\\\\)(?:\\\\{2})*\${?[a-zA-Z0-9_]+}?|';
if (preg_match($pattern, $tokens[$stackPtr]['content']) !== 0) {
$this->processVariableInString($phpcsFile, $stackPtr);
}
}
}//end processTokenOutsideScope()
/**
* Called to process class member vars.
*
* @param PHP_CodeSniffer_File $phpcsFile The PHP_CodeSniffer file where this
* token was found.
* @param int $stackPtr The position where the token was found.
*
* @return void
*/
abstract protected function processMemberVar(
PHP_CodeSniffer_File $phpcsFile,
$stackPtr
);
/**
* Called to process normal member vars.
*
* @param PHP_CodeSniffer_File $phpcsFile The PHP_CodeSniffer file where this
* token was found.
* @param int $stackPtr The position where the token was found.
*
* @return void
*/
abstract protected function processVariable(
PHP_CodeSniffer_File $phpcsFile,
$stackPtr
);
/**
* Called to process variables found in duoble quoted strings or heredocs.
*
* Note that there may be more than one variable in the string, which will
* result only in one call for the string or one call per line for heredocs.
*
* @param PHP_CodeSniffer_File $phpcsFile The PHP_CodeSniffer file where this
* token was found.
* @param int $stackPtr The position where the double quoted
* string was found.
*
* @return void
*/
abstract protected function processVariableInString(
PHP_CodeSniffer_File
$phpcsFile,
$stackPtr
);
}//end class
?>
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