Fatal error: Call to a member function end() on null #9722
Description
Bug report
somehow phpstan got into a state which makes analysis run into the following fatal error
> vendor/bin/phpstan analyse -c phpstan.neon.dist
40/265 [====>-----------------------] 15Fatal error: Uncaught Error: Call to a member function end() on null in phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Parallel/Process.php:127
Stack trace:
#0 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Parallel/ProcessPool.php(45): PHPStan\Parallel\Process->quit()
#1 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Parallel/ProcessPool.php(55): PHPStan\Parallel\ProcessPool->quitProcess()
#2 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Parallel/ParallelAnalyser.php(154): PHPStan\Parallel\ProcessPool->quitAll()
#3 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Parallel/Process.php(137): PHPStan\Parallel\ParallelAnalyser->PHPStan\Parallel\{closure}()
#4 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97): PHPStan\Parallel\Process->PHPStan\Parallel\{closure}()
#5 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/clue/ndjson-react/src/Decoder.php(117): _PHPStan_d55c4f2c2\Evenement\EventEmitter->emit()
#6 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97): _PHPStan_d55c4f2c2\Clue\React\NDJson\Decoder->handleData()
#7 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/react/stream/src/Util.php(62): _PHPStan_d55c4f2c2\Evenement\EventEmitter->emit()
#8 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97): _PHPStan_d55c4f2c2\React\Stream\Util::_PHPStan_d55c4f2c2\React\Stream\{closure}()
#9 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/react/stream/src/DuplexResourceStream.php(154): _PHPStan_d55c4f2c2\Evenement\EventEmitter->emit()
#10 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/react/event-loop/src/StreamSelectLoop.php(201): _PHPStan_d55c4f2c2\React\Stream\DuplexResourceStream->handleData()
#11 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/react/event-loop/src/StreamSelectLoop.php(173): _PHPStan_d55c4f2c2\React\EventLoop\StreamSelectLoop->waitForStreamActivity()
#12 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Parallel/ParallelAnalyser.php(179): _PHPStan_d55c4f2c2\React\EventLoop\StreamSelectLoop->run()
#13 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Command/AnalyserRunner.php(60): PHPStan\Parallel\ParallelAnalyser->analyse()
#14 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Command/AnalyseApplication.php(207): PHPStan\Command\AnalyserRunner->runAnalyser()
#15 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Command/AnalyseApplication.php(100): PHPStan\Command\AnalyseApplication->runAnalyser()
#16 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/src/Command/AnalyseCommand.php(195): PHPStan\Command\AnalyseApplication->analyse()
#17 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Command/Command.php(259): PHPStan\Command\AnalyseCommand->execute()
#18 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(870): _PHPStan_d55c4f2c2\Symfony\Component\Console\Command\Command->run()
#19 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(261): _PHPStan_d55c4f2c2\Symfony\Component\Console\Application->doRunCommand()
#20 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(157): _PHPStan_d55c4f2c2\Symfony\Component\Console\Application->doRun()
#21 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/bin/phpstan(124): _PHPStan_d55c4f2c2\Symfony\Component\Console\Application->run()
#22 phar://C:/dvl/Workspace/php-rocket/vendor/phpstan/phpstan/phpstan.phar/bin/phpstan(125): _PHPStan_d55c4f2c2\{closure}()
#23 C:\dvl\Workspace\php-rocket\vendor\phpstan\phpstan\phpstan(8): require('...')
#24 C:\dvl\Workspace\php-rocket\vendor\bin\phpstan(119): include('...')
#25 {main}
I don't have a reproducer but maybe its still a useful stacktrace and something which can be fixed by just adding a null-check
using PHPStan 1.10.26
$ php -v
PHP 8.2.7 (cli) (built: Jun 7 2023 10:25:24) (NTS Visual C++ 2019 x64)
Copyright (c) The PHP Group
Zend Engine v4.2.7, Copyright (c) Zend Technologies
running on windows11 x64 - with latest updates
Code snippet that reproduces the problem
No response
Expected output
no fatal error
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