alospiesjs/www/apis/youtube/vendor/psy/psysh/src/CodeCleaner/FunctionReturnInWriteContextPass.php000060400000005140151163274330030453 0ustar00home */ class FunctionReturnInWriteContextPass extends CodeCleanerPass { const ISSET_MESSAGE = 'Cannot use isset() on the result of an expression (you can use "null !== expression" instead)'; const EXCEPTION_MESSAGE = "Can't use function return value in write context"; /** * Validate that the functions are used correctly. * * @throws FatalErrorException if a function is passed as an argument reference * @throws FatalErrorException if a function is used as an argument in the isset * @throws FatalErrorException if a value is assigned to a function * * @param Node $node */ public function enterNode(Node $node) { if ($node instanceof Array_ || $this->isCallNode($node)) { $items = $node instanceof Array_ ? $node->items : $node->args; foreach ($items as $item) { if ($item instanceof VariadicPlaceholder) { continue; } if ($item && $item->byRef && $this->isCallNode($item->value)) { throw new FatalErrorException(self::EXCEPTION_MESSAGE, 0, \E_ERROR, null, $node->getLine()); } } } elseif ($node instanceof Isset_ || $node instanceof Unset_) { foreach ($node->vars as $var) { if (!$this->isCallNode($var)) { continue; } $msg = $node instanceof Isset_ ? self::ISSET_MESSAGE : self::EXCEPTION_MESSAGE; throw new FatalErrorException($msg, 0, \E_ERROR, null, $node->getLine()); } } elseif ($node instanceof Assign && $this->isCallNode($node->var)) { throw new FatalErrorException(self::EXCEPTION_MESSAGE, 0, \E_ERROR, null, $node->getLine()); } } private function isCallNode(Node $node): bool { return $node instanceof FuncCall || $node instanceof MethodCall || $node instanceof StaticCall; } }