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<?php |
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/** |
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* \PHPCompatibility\Sniffs\ControlStructures\ForeachExpressionReferencingSniff. |
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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\ControlStructures; |
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use PHPCompatibility\Sniff; |
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/** |
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* \PHPCompatibility\Sniffs\ControlStructures\ForeachExpressionReferencingSniff. |
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* |
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* Before PHP 5.5.0, referencing $value is only possible if the iterated array |
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* can be referenced (i.e. if it is a variable). |
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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 ForeachExpressionReferencingSniff 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_FOREACH); |
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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 = $phpcsFile->getTokens(); |
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View Code Duplication |
if (isset($tokens[$stackPtr]['parenthesis_opener'], $tokens[$stackPtr]['parenthesis_closer']) === false) { |
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return; |
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} |
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$opener = $tokens[$stackPtr]['parenthesis_opener']; |
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$closer = $tokens[$stackPtr]['parenthesis_closer']; |
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$asToken = $phpcsFile->findNext(T_AS, ($opener + 1), $closer); |
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if ($asToken === false) { |
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return; |
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} |
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/* |
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* Note: referencing $key is not allowed in any version, so this should only find referenced $values. |
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* If it does find a referenced key, it would be a parse error anyway. |
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*/ |
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$hasReference = $phpcsFile->findNext(T_BITWISE_AND, ($asToken + 1), $closer); |
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if ($hasReference === false) { |
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return; |
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} |
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$nestingLevel = 0; |
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View Code Duplication |
if ($asToken !== ($opener + 1) && isset($tokens[$opener + 1]['nested_parenthesis'])) { |
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$nestingLevel = count($tokens[$opener + 1]['nested_parenthesis']); |
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} |
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if ($this->isVariable($phpcsFile, ($opener + 1), $asToken, $nestingLevel) === true) { |
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return; |
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} |
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// Non-variable detected before the `as` keyword. |
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$phpcsFile->addError( |
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'Referencing $value is only possible if the iterated array is a variable in PHP 5.4 or earlier.', |
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$hasReference, |
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'Found' |
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); |
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} |
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} |
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wimg /
PHPCompatibility
