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home/autoovt/www/vendor-old/psy/psysh/src/CodeCleaner/FunctionContextPass.php 0000666 00000003024 14772142407 0023513 0 ustar 00 <?php /* * This file is part of Psy Shell. * * (c) 2012-2023 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Psy\CodeCleaner; use PhpParser\Node; use PhpParser\Node\Expr\Yield_; use PhpParser\Node\FunctionLike; use Psy\Exception\FatalErrorException; class FunctionContextPass extends CodeCleanerPass { private int $functionDepth = 0; /** * @param array $nodes * * @return Node[]|null Array of nodes */ public function beforeTraverse(array $nodes) { $this->functionDepth = 0; } /** * @return int|Node|null Replacement node (or special return value) */ public function enterNode(Node $node) { if ($node instanceof FunctionLike) { $this->functionDepth++; return; } // node is inside function context if ($this->functionDepth !== 0) { return; } // It causes fatal error. if ($node instanceof Yield_) { $msg = 'The "yield" expression can only be used inside a function'; throw new FatalErrorException($msg, 0, \E_ERROR, null, $node->getStartLine()); } } /** * @param \PhpParser\Node $node * * @return int|Node|Node[]|null Replacement node (or special return value) */ public function leaveNode(Node $node) { if ($node instanceof FunctionLike) { $this->functionDepth--; } } }
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