Bug report

After upgrading to 1.6.3 and enabling bleeding edge rules, we got this error when analysing one of our areas.

Code snippet that reproduces the problem

I don’t know what exactly is causing the issue, but probably something related to bootstrap and autoloading. The -v stacktrace:

Internal error: Internal error: Call to a member function loadClass() on int in file /app/utils/rector/sets/legacy-code.php

Post the following stack trace to https://github.com/phpstan/phpstan/issues/new?template=Bug_report.md:
#0 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Reflection/BetterReflection/SourceLocator/AutoloadSourceLocator.php(281): {closure}('Rector\\Config\\R...')
#1 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Reflection/BetterReflection/SourceLocator/FileReadTrapStreamWrapper.php(61):
PHPStan\Reflection\BetterReflection\SourceLocator\AutoloadSourceLocator::PHPStan\Reflection\BetterReflection\SourceLocator\{closure}()
#2 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Reflection/BetterReflection/SourceLocator/AutoloadSourceLocator.php(293):
PHPStan\Reflection\BetterReflection\SourceLocator\FileReadTrapStreamWrapper::withStreamWrapperOverride(Object(Closure))
#3 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Reflection/BetterReflection/SourceLocator/AutoloadSourceLocator.php(116):
PHPStan\Reflection\BetterReflection\SourceLocator\AutoloadSourceLocator->locateClassByName('Rector\\Config\\R...')
#4 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/ondrejmirtes/better-reflection/src/SourceLocator/Type/AggregateSourceLocator.php(28):
PHPStan\Reflection\BetterReflection\SourceLocator\AutoloadSourceLocator->locateIdentifier(Object(PHPStan\BetterReflection\Reflector\DefaultReflector), Object(PHPStan\BetterReflection\Identifier\Identifier))
#5 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/ondrejmirtes/better-reflection/src/SourceLocator/Type/MemoizingSourceLocator.php(33):
PHPStan\BetterReflection\SourceLocator\Type\AggregateSourceLocator->locateIdentifier(Object(PHPStan\BetterReflection\Reflector\DefaultReflector), Object(PHPStan\BetterReflection\Identifier\Identifier))
#6 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/ondrejmirtes/better-reflection/src/Reflector/DefaultReflector.php(32):
PHPStan\BetterReflection\SourceLocator\Type\MemoizingSourceLocator->locateIdentifier(Object(PHPStan\BetterReflection\Reflector\DefaultReflector), Object(PHPStan\BetterReflection\Identifier\Identifier))
#7 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Reflection/BetterReflection/Reflector/MemoizingReflector.php(45):
PHPStan\BetterReflection\Reflector\DefaultReflector->reflectClass('Rector\\Config\\R...')
#8 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Reflection/BetterReflection/BetterReflectionProvider.php(146):
PHPStan\Reflection\BetterReflection\Reflector\MemoizingReflector->reflectClass('Rector\\Config\\R...')
#9 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Reflection/ReflectionProvider/MemoizingReflectionProvider.php(34):
PHPStan\Reflection\BetterReflection\BetterReflectionProvider->hasClass('Rector\\Config\\R...')
#10 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Rules/ClassCaseSensitivityCheck.php(34): PHPStan\Reflection\ReflectionProvider\MemoizingReflectionProvider->hasClass('Rector\\Config\\R...')
#11 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Rules/Namespaces/ExistingNamesInUseRule.php(107): PHPStan\Rules\ClassCaseSensitivityCheck->checkClassNames(Array)
#12 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Rules/Namespaces/ExistingNamesInUseRule.php(61): PHPStan\Rules\Namespaces\ExistingNamesInUseRule->checkClasses(Array)
#13 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/FileAnalyser.php(102): PHPStan\Rules\Namespaces\ExistingNamesInUseRule->processNode(Object(PhpParser\Node\Stmt\Use_),
Object(PHPStan\Analyser\MutatingScope))
#14 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(369): PHPStan\Analyser\FileAnalyser->PHPStan\Analyser\{closure}(Object(PhpParser\Node\Stmt\Use_),
Object(PHPStan\Analyser\MutatingScope))
#15 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(314): PHPStan\Analyser\NodeScopeResolver->processStmtNode(Object(PhpParser\Node\Stmt\Use_),
Object(PHPStan\Analyser\MutatingScope), Object(Closure))
#16 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(526): PHPStan\Analyser\NodeScopeResolver->processStmtNodes(Object(PhpParser\Node\Stmt\Namespace_), Array,
Object(PHPStan\Analyser\MutatingScope), Object(Closure))
#17 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(285): PHPStan\Analyser\NodeScopeResolver->processStmtNode(Object(PhpParser\Node\Stmt\Namespace_),
Object(PHPStan\Analyser\MutatingScope), Object(Closure))
#18 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/FileAnalyser.php(189): PHPStan\Analyser\NodeScopeResolver->processNodes(Array, Object(PHPStan\Analyser\MutatingScope), Object(Closure))
#19 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Command/WorkerCommand.php(143): PHPStan\Analyser\FileAnalyser->analyseFile('/Volumes/Projec...', Array, Object(PHPStan\Rules\Registry), NULL)
#20 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97): PHPStan\Command\WorkerCommand->PHPStan\Command\{closure}(Array)
#21 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/clue/ndjson-react/src/Decoder.php(110): _PHPStan_c900ee2af\Evenement\EventEmitter->emit('data', Array)
#22 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97): _PHPStan_c900ee2af\Clue\React\NDJson\Decoder->handleData(Array)
#23 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/react/stream/src/Util.php(62): _PHPStan_c900ee2af\Evenement\EventEmitter->emit('data', Array)
#24 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97):
_PHPStan_c900ee2af\React\Stream\Util::_PHPStan_c900ee2af\React\Stream\{closure}('{"action":"anal...')
#25 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/react/stream/src/DuplexResourceStream.php(154): _PHPStan_c900ee2af\Evenement\EventEmitter->emit('data', Array)
#26 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/react/event-loop/src/StreamSelectLoop.php(201): _PHPStan_c900ee2af\React\Stream\DuplexResourceStream->handleData(Resource id #11547)
#27 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/react/event-loop/src/StreamSelectLoop.php(173): _PHPStan_c900ee2af\React\EventLoop\StreamSelectLoop->waitForStreamActivity(NULL)
#28 phar:///app/vendor/phpstan/phpstan/phpstan.phar/src/Command/WorkerCommand.php(106): _PHPStan_c900ee2af\React\EventLoop\StreamSelectLoop->run()
#29 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Command/Command.php(259): PHPStan\Command\WorkerCommand->execute(Object(_PHPStan_c900ee2af\Symfony\Component\Console\Input\ArgvInput),
Object(_PHPStan_c900ee2af\Symfony\Component\Console\Output\ConsoleOutput))
#30 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(856):
_PHPStan_c900ee2af\Symfony\Component\Console\Command\Command->run(Object(_PHPStan_c900ee2af\Symfony\Component\Console\Input\ArgvInput), Object(_PHPStan_c900ee2af\Symfony\Component\Console\Output\ConsoleOutput))
#31 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(259): _PHPStan_c900ee2af\Symfony\Component\Console\Application->doRunCommand(Object(PHPStan\Command\WorkerCommand),
Object(_PHPStan_c900ee2af\Symfony\Component\Console\Input\ArgvInput), Object(_PHPStan_c900ee2af\Symfony\Component\Console\Output\ConsoleOutput))
#32 phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(157):
_PHPStan_c900ee2af\Symfony\Component\Console\Application->doRun(Object(_PHPStan_c900ee2af\Symfony\Component\Console\Input\ArgvInput), Object(_PHPStan_c900ee2af\Symfony\Component\Console\Output\ConsoleOutput))
#33 phar:///app/vendor/phpstan/phpstan/phpstan.phar/bin/phpstan(96): _PHPStan_c900ee2af\Symfony\Component\Console\Application->run()
#34 phar:///app/vendor/phpstan/phpstan/phpstan.phar/bin/phpstan(97): _PHPStan_c900ee2af\{closure}()
#35 /app/vendor/phpstan/phpstan/phpstan(7): require('phar:///Volumes...')
#36 /app/vendor/bin/phpstan(112): include('/Volumes/Projec...')
#37 {main}
Internal error: Internal error: Call to a member function loadClass() on int in file /app/utils/rector/src/AppRectorSets.php

app/utils/rector/src/AppRectorSets.php:

<?php

declare(strict_types=1);

namespace App\Utils\Rector;

use Rector\Set\Contract\SetListInterface;

final class AppRectorSets implements SetListInterface
{
    public const LEGACY_CODE = __DIR__ . '/../sets/legacy-code.php';
}

In composer.json we have:

{
    "autoload-dev": {
        "psr-4": {
            "App\\Utils\\Rector\\": "utils/rector/src",
        }
    }
}

FYI: I’ve masked actual namespace and filenames, but it’s as close as it can be to the original.

Expected output

No internal error

Did PHPStan help you today? Did it make you happy in any way?

Bleeding edge rules allowed me to find some dead code in one class 🎉