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<?php |
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/** |
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* \PHPCompatibility\Sniffs\PHP\DynamicAccessToStaticSniff. |
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* |
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* PHP version 5.3 |
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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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use PHP_CodeSniffer_Tokens as Tokens; |
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/** |
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* \PHPCompatibility\Sniffs\PHP\DynamicAccessToStaticSniff. |
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* |
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* As of PHP 5.3, static properties and methods as well as class constants |
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* can be accessed using a dynamic (variable) class name. |
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* |
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* PHP version 5.3 |
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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 DynamicAccessToStaticSniff 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( |
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T_DOUBLE_COLON, |
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); |
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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('5.2') === false) { |
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return; |
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} |
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$tokens = $phpcsFile->getTokens(); |
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$prevNonEmpty = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($stackPtr - 1), null, true); |
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// Disregard `static::` as well. Late static binding is reported by another sniff. |
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if ($tokens[$prevNonEmpty]['code'] === T_SELF |
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|| $tokens[$prevNonEmpty]['code'] === T_PARENT |
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|| $tokens[$prevNonEmpty]['code'] === T_STATIC |
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) { |
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return; |
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} |
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if ($tokens[$prevNonEmpty]['code'] === T_STRING) { |
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$prevPrevNonEmpty = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($prevNonEmpty - 1), null, true); |
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if ($tokens[$prevPrevNonEmpty]['code'] !== T_OBJECT_OPERATOR) { |
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return; |
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} |
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} |
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$phpcsFile->addError( |
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'Static class properties and methods, as well as class constants, could not be accessed using a dynamic (variable) classname in PHP 5.2 or earlier.', |
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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
