<?php /** * PHPCompatibility, an external standard for PHP_CodeSniffer. * * @package PHPCompatibility * @copyright 2012-2019 PHPCompatibility Contributors * @license https://opensource.org/licenses/LGPL-3.0 LGPL3 * @link https://github.com/PHPCompatibility/PHPCompatibility */ namespace PHPCompatibility\Sniffs\Classes; use PHPCompatibility\Sniff; use PHP_CodeSniffer_File as File; use PHP_CodeSniffer_Tokens as Tokens; /** * Detect use of late static binding as introduced in PHP 5.3. * * Checks for: * - Late static binding as introduced in PHP 5.3. * - Late static binding being used outside of class scope (unsupported). * * PHP version 5.3 * * @link https://www.php.net/manual/en/language.oop5.late-static-bindings.php * @link https://wiki.php.net/rfc/lsb_parentself_forwarding * * @since 7.0.3 * @since 9.0.0 Renamed from `LateStaticBindingSniff` to `NewLateStaticBindingSniff`. */ class NewLateStaticBindingSniff extends Sniff { /** * Returns an array of tokens this test wants to listen for. * * @since 7.0.3 * * @return array */ public function register() { return array(\T_STATIC); } /** * Processes this test, when one of its tokens is encountered. * * @since 7.0.3 * * @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(File $phpcsFile, $stackPtr) { $nextNonEmpty = $phpcsFile->findNext(Tokens::$emptyTokens, $stackPtr + 1, null, true, null, true); if ($nextNonEmpty === false) { return; } $tokens = $phpcsFile->getTokens(); if ($tokens[$nextNonEmpty]['code'] !== \T_DOUBLE_COLON) { return; } $inClass = $this->inClassScope($phpcsFile, $stackPtr, false); if ($inClass === true && $this->supportsBelow('5.2') === true) { $phpcsFile->addError( 'Late static binding is not supported in PHP 5.2 or earlier.', $stackPtr, 'Found' ); } if ($inClass === false) { $phpcsFile->addError( 'Late static binding is not supported outside of class scope.', $stackPtr, 'OutsideClassScope' ); } } }