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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | namespace MediaWiki\Sniffs\Usage; |
| 22 | |
| 23 | use PHP_CodeSniffer\Files\File; |
| 24 | use PHP_CodeSniffer\Sniffs\Sniff; |
| 25 | |
| 26 | class NestedFunctionsSniff implements Sniff { |
| 27 | |
| 28 | /** |
| 29 | * @inheritDoc |
| 30 | */ |
| 31 | public function register(): array { |
| 32 | return [ T_FUNCTION ]; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * @param File $phpcsFile |
| 37 | * @param int $stackPtr The current token index. |
| 38 | */ |
| 39 | public function process( File $phpcsFile, $stackPtr ) { |
| 40 | $functionName = $phpcsFile->getDeclarationName( $stackPtr ); |
| 41 | if ( $functionName === false ) { |
| 42 | return; |
| 43 | } |
| 44 | |
| 45 | // Walk through parent scopes, looking for functions/closures that are not in an |
| 46 | // anonymous class |
| 47 | if ( |
| 48 | $phpcsFile->hasCondition( $stackPtr, [ T_FUNCTION, T_CLOSURE ] ) && |
| 49 | !$phpcsFile->hasCondition( $stackPtr, [ T_ANON_CLASS ] ) |
| 50 | ) { |
| 51 | $error = 'Function %s is nested inside of another function or closure'; |
| 52 | $phpcsFile->addError( $error, $stackPtr, 'NestedFunction', [ $functionName ] ); |
| 53 | } |
| 54 | } |
| 55 | } |