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<?php |
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/** |
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* \PHPCompatibility\Sniffs\PHP\EmptyNonVariableSniff. |
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* |
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* PHP version 5.5 |
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* |
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* @category PHP |
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* @package PHPCompatibility |
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* @author Juliette Reinders Folmer <[email protected]> |
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*/ |
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namespace PHPCompatibility\Sniffs\PHP; |
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use PHPCompatibility\Sniff; |
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/** |
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* \PHPCompatibility\Sniffs\PHP\EmptyNonVariableSniff. |
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* |
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* Verify that nothing but variables are passed to empty(). |
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* |
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* PHP version 5.5 |
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* |
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* @category PHP |
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* @package PHPCompatibility |
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* @author Juliette Reinders Folmer <[email protected]> |
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*/ |
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class EmptyNonVariableSniff extends Sniff |
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{ |
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/** |
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* Returns an array of tokens this test wants to listen for. |
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* |
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* @return array |
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*/ |
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public function register() |
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{ |
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return array(T_EMPTY); |
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} |
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/** |
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* Processes this test, when one of its tokens is encountered. |
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* |
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* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned. |
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* @param int $stackPtr The position of the current token in the |
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* stack passed in $tokens. |
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* |
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* @return void |
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*/ |
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public function process(\PHP_CodeSniffer_File $phpcsFile, $stackPtr) |
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{ |
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if ($this->supportsBelow('5.4') === false) { |
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return; |
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} |
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$tokens = $phpcsFile->getTokens(); |
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$open = $phpcsFile->findNext(T_OPEN_PARENTHESIS, $stackPtr, null, false, null, true); |
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View Code Duplication |
if ($open === false || isset($tokens[$open]['parenthesis_closer']) === false) { |
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return; |
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} |
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$close = $tokens[$open]['parenthesis_closer']; |
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$nestingLevel = 0; |
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View Code Duplication |
if ($close !== ($open + 1) && isset($tokens[$open + 1]['nested_parenthesis'])) { |
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$nestingLevel = count($tokens[$open + 1]['nested_parenthesis']); |
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} |
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if ($this->isVariable($phpcsFile, ($open + 1), $close, $nestingLevel) === true) { |
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return; |
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} |
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$phpcsFile->addError( |
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'Only variables can be passed to empty() prior to PHP 5.5.', |
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$stackPtr, |
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'Found' |
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); |
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} |
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} |
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wimg /
PHPCompatibility
