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| 1 | <?php |
| 2 | /** |
| 3 | * Checks that plus is not used for string concat |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 | * http://www.gnu.org/copyleft/gpl.html |
| 19 | * |
| 20 | * @file |
| 21 | */ |
| 22 | |
| 23 | namespace MediaWiki\Sniffs\Usage; |
| 24 | |
| 25 | use PHP_CodeSniffer\Files\File; |
| 26 | use PHP_CodeSniffer\Sniffs\Sniff; |
| 27 | use PHP_CodeSniffer\Util\Tokens; |
| 28 | |
| 29 | class PlusStringConcatSniff implements Sniff { |
| 30 | |
| 31 | /** |
| 32 | * Returns an array of tokens this test wants to listen for. |
| 33 | * |
| 34 | * @return array |
| 35 | */ |
| 36 | public function register(): array { |
| 37 | return [ T_PLUS, T_PLUS_EQUAL ]; |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * Processes this sniff, when one of its tokens is encountered. |
| 42 | * |
| 43 | * @param File $phpcsFile The file being scanned. |
| 44 | * @param int $stackPtr The position of the current token in the stack passed in $tokens. |
| 45 | * |
| 46 | * @return void |
| 47 | */ |
| 48 | public function process( File $phpcsFile, $stackPtr ) { |
| 49 | $prev = $phpcsFile->findPrevious( Tokens::$emptyTokens, $stackPtr - 1, null, true ); |
| 50 | $next = $phpcsFile->findNext( Tokens::$emptyTokens, $stackPtr + 1, null, true ); |
| 51 | if ( $prev === false || $next === false ) { |
| 52 | // Live coding |
| 53 | return; |
| 54 | } |
| 55 | $tokens = $phpcsFile->getTokens(); |
| 56 | |
| 57 | // The token + should not have a string before or after it |
| 58 | if ( isset( Tokens::$stringTokens[$tokens[$prev]['code']] ) |
| 59 | || isset( Tokens::$stringTokens[$tokens[$next]['code']] ) |
| 60 | ) { |
| 61 | $phpcsFile->addError( |
| 62 | 'Use "%s" for string concat', |
| 63 | $stackPtr, |
| 64 | 'Found', |
| 65 | [ $tokens[$stackPtr]['code'] === T_PLUS ? '.' : '.=' ] |
| 66 | ); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | } |