FM / Compiler

/usr/share/php/Symfony/Component/DependencyInjection/Compiler/

/usr/share/php/Symfony/Component/DependencyInjection/Compiler

Name	Size	Mode	Actions
AbstractRecursivePass.php	9331	0644	edit dl rm
AliasDeprecatedPublicServicesPass.php	2559	0644	edit dl rm
AnalyzeServiceReferencesPass.php	6326	0644	edit dl rm
AttributeAutoconfigurationPass.php	7622	0644	edit dl rm
AutoAliasServicePass.php	1908	0644	edit dl rm
AutowirePass.php	25219	0644	edit dl rm
AutowireRequiredMethodsPass.php	3867	0644	edit dl rm
AutowireRequiredPropertiesPass.php	2286	0644	edit dl rm
CheckArgumentsValidityPass.php	4386	0644	edit dl rm
CheckCircularReferencesPass.php	2448	0644	edit dl rm
CheckDefinitionValidityPass.php	4741	0644	edit dl rm
CheckExceptionOnInvalidReferenceBehaviorPass.php	3663	0644	edit dl rm
CheckReferenceValidityPass.php	1477	0644	edit dl rm
CheckTypeDeclarationsPass.php	12369	0644	edit dl rm
Compiler.php	2724	0644	edit dl rm
CompilerPassInterface.php	668	0644	edit dl rm
DecoratorServicePass.php	5257	0644	edit dl rm
DefinitionErrorExceptionPass.php	1870	0644	edit dl rm
ExtensionCompilerPass.php	892	0644	edit dl rm
InlineServiceDefinitionsPass.php	7585	0644	edit dl rm
MergeExtensionConfigurationPass.php	8563	0644	edit dl rm
PassConfig.php	7547	0644	edit dl rm
PriorityTaggedServiceTrait.php	6811	0644	edit dl rm
RegisterAutoconfigureAttributesPass.php	3353	0644	edit dl rm
RegisterEnvVarProcessorsPass.php	3004	0644	edit dl rm
RegisterReverseContainerPass.php	2422	0644	edit dl rm
RegisterServiceSubscribersPass.php	6651	0644	edit dl rm
RemoveAbstractDefinitionsPass.php	908	0644	edit dl rm
RemovePrivateAliasesPass.php	1114	0644	edit dl rm
RemoveUnusedDefinitionsPass.php	2860	0644	edit dl rm
ReplaceAliasByActualDefinitionPass.php	4491	0644	edit dl rm
ResolveBindingsPass.php	9233	0644	edit dl rm
ResolveChildDefinitionsPass.php	7538	0644	edit dl rm
ResolveClassPass.php	1561	0644	edit dl rm
ResolveDecoratorStackPass.php	4610	0644	edit dl rm
ResolveEnvPlaceholdersPass.php	1357	0644	edit dl rm
ResolveFactoryClassPass.php	1217	0644	edit dl rm
ResolveHotPathPass.php	2553	0644	edit dl rm
ResolveInstanceofConditionalsPass.php	7171	0644	edit dl rm
ResolveInvalidReferencesPass.php	5332	0644	edit dl rm
ResolveNamedArgumentsPass.php	5581	0644	edit dl rm
ResolveNoPreloadPass.php	3364	0644	edit dl rm
ResolveParameterPlaceHoldersPass.php	2969	0644	edit dl rm
ResolvePrivatesPass.php	1178	0644	edit dl rm
ResolveReferencesToAliasesPass.php	2758	0644	edit dl rm
ResolveServiceSubscribersPass.php	1637	0644	edit dl rm
ResolveTaggedIteratorArgumentPass.php	952	0644	edit dl rm
ServiceLocatorTagPass.php	5273	0644	edit dl rm
ServiceReferenceGraph.php	2644	0644	edit dl rm
ServiceReferenceGraphEdge.php	2184	0644	edit dl rm
ServiceReferenceGraphNode.php	2299	0644	edit dl rm
ValidateEnvPlaceholdersPass.php	3884	0644	edit dl rm

Edit: /usr/share/php/Symfony/Component/DependencyInjection/Compiler/AutowirePass.php (25219B)

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\DependencyInjection\Compiler;

use Symfony\Component\Config\Resource\ClassExistenceResource;
use Symfony\Component\DependencyInjection\Argument\ServiceLocatorArgument;
use Symfony\Component\DependencyInjection\Argument\TaggedIteratorArgument;
use Symfony\Component\DependencyInjection\Attribute\TaggedIterator;
use Symfony\Component\DependencyInjection\Attribute\TaggedLocator;
use Symfony\Component\DependencyInjection\Attribute\Target;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Exception\AutowiringFailedException;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;
use Symfony\Component\DependencyInjection\LazyProxy\ProxyHelper;
use Symfony\Component\DependencyInjection\TypedReference;

/**
 * Inspects existing service definitions and wires the autowired ones using the type hints of their classes.
 *
 * @author Kévin Dunglas <dunglas@gmail.com>
 * @author Nicolas Grekas <p@tchwork.com>
 */
class AutowirePass extends AbstractRecursivePass
{
    private $types;
    private $ambiguousServiceTypes;
    private $autowiringAliases;
    private $lastFailure;
    private $throwOnAutowiringException;
    private $decoratedClass;
    private $decoratedId;
    private $methodCalls;
    private $defaultArgument;
    private $getPreviousValue;
    private $decoratedMethodIndex;
    private $decoratedMethodArgumentIndex;
    private $typesClone;
    private $combinedAliases;

public function __construct(bool $throwOnAutowireException = true)
    {
        $this->throwOnAutowiringException = $throwOnAutowireException;
        $this->defaultArgument = new class() {
            public $value;
            public $names;
        };
    }

/**
     * {@inheritdoc}
     */
    public function process(ContainerBuilder $container)
    {
        $this->populateCombinedAliases($container);

try {
            $this->typesClone = clone $this;
            parent::process($container);
        } finally {
            $this->decoratedClass = null;
            $this->decoratedId = null;
            $this->methodCalls = null;
            $this->defaultArgument->names = null;
            $this->getPreviousValue = null;
            $this->decoratedMethodIndex = null;
            $this->decoratedMethodArgumentIndex = null;
            $this->typesClone = null;
            $this->combinedAliases = [];
        }
    }

/**
     * {@inheritdoc}
     */
    protected function processValue($value, bool $isRoot = false)
    {
        try {
            return $this->doProcessValue($value, $isRoot);
        } catch (AutowiringFailedException $e) {
            if ($this->throwOnAutowiringException) {
                throw $e;
            }

$this->container->getDefinition($this->currentId)->addError($e->getMessageCallback() ?? $e->getMessage());

return parent::processValue($value, $isRoot);
        }
    }

/**
     * @return mixed
     */
    private function doProcessValue($value, bool $isRoot = false)
    {
        if ($value instanceof TypedReference) {
            if ($ref = $this->getAutowiredReference($value, true)) {
                return $ref;
            }
            if (ContainerBuilder::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE === $value->getInvalidBehavior()) {
                $message = $this->createTypeNotFoundMessageCallback($value, 'it');

// since the error message varies by referenced id and $this->currentId, so should the id of the dummy errored definition
                $this->container->register($id = sprintf('.errored.%s.%s', $this->currentId, (string) $value), $value->getType())
                    ->addError($message);

return new TypedReference($id, $value->getType(), $value->getInvalidBehavior(), $value->getName());
            }
        }
        $value = parent::processValue($value, $isRoot);

if (!$value instanceof Definition || !$value->isAutowired() || $value->isAbstract() || !$value->getClass()) {
            return $value;
        }
        if (!$reflectionClass = $this->container->getReflectionClass($value->getClass(), false)) {
            $this->container->log($this, sprintf('Skipping service "%s": Class or interface "%s" cannot be loaded.', $this->currentId, $value->getClass()));

return $value;
        }

$this->methodCalls = $value->getMethodCalls();

try {
            $constructor = $this->getConstructor($value, false);
        } catch (RuntimeException $e) {
            throw new AutowiringFailedException($this->currentId, $e->getMessage(), 0, $e);
        }

if ($constructor) {
            array_unshift($this->methodCalls, [$constructor, $value->getArguments()]);
        }

$checkAttributes = 80000 <= \PHP_VERSION_ID && !$value->hasTag('container.ignore_attributes');
        $this->methodCalls = $this->autowireCalls($reflectionClass, $isRoot, $checkAttributes);

if ($constructor) {
            [, $arguments] = array_shift($this->methodCalls);

if ($arguments !== $value->getArguments()) {
                $value->setArguments($arguments);
            }
        }

if ($this->methodCalls !== $value->getMethodCalls()) {
            $value->setMethodCalls($this->methodCalls);
        }

return $value;
    }

private function autowireCalls(\ReflectionClass $reflectionClass, bool $isRoot, bool $checkAttributes): array
    {
        $this->decoratedId = null;
        $this->decoratedClass = null;
        $this->getPreviousValue = null;

if ($isRoot && ($definition = $this->container->getDefinition($this->currentId)) && null !== ($this->decoratedId = $definition->innerServiceId) && $this->container->has($this->decoratedId)) {
            $this->decoratedClass = $this->container->findDefinition($this->decoratedId)->getClass();
        }

$patchedIndexes = [];

foreach ($this->methodCalls as $i => $call) {
            [$method, $arguments] = $call;

if ($method instanceof \ReflectionFunctionAbstract) {
                $reflectionMethod = $method;
            } else {
                $definition = new Definition($reflectionClass->name);
                try {
                    $reflectionMethod = $this->getReflectionMethod($definition, $method);
                } catch (RuntimeException $e) {
                    if ($definition->getFactory()) {
                        continue;
                    }
                    throw $e;
                }
            }

$arguments = $this->autowireMethod($reflectionMethod, $arguments, $checkAttributes, $i);

if ($arguments !== $call[1]) {
                $this->methodCalls[$i][1] = $arguments;
                $patchedIndexes[] = $i;
            }
        }

// use named arguments to skip complex default values
        foreach ($patchedIndexes as $i) {
            $namedArguments = null;
            $arguments = $this->methodCalls[$i][1];

foreach ($arguments as $j => $value) {
                if ($namedArguments && !$value instanceof $this->defaultArgument) {
                    unset($arguments[$j]);
                    $arguments[$namedArguments[$j]] = $value;
                }
                if ($namedArguments || !$value instanceof $this->defaultArgument) {
                    continue;
                }

if (\PHP_VERSION_ID >= 80100 && (\is_array($value->value) ? $value->value : \is_object($value->value))) {
                    unset($arguments[$j]);
                    $namedArguments = $value->names;
                } else {
                    $arguments[$j] = $value->value;
                }
            }

$this->methodCalls[$i][1] = $arguments;
        }

return $this->methodCalls;
    }

/**
     * Autowires the constructor or a method.
     *
     * @throws AutowiringFailedException
     */
    private function autowireMethod(\ReflectionFunctionAbstract $reflectionMethod, array $arguments, bool $checkAttributes, int $methodIndex): array
    {
        $class = $reflectionMethod instanceof \ReflectionMethod ? $reflectionMethod->class : $this->currentId;
        $method = $reflectionMethod->name;
        $parameters = $reflectionMethod->getParameters();
        if ($reflectionMethod->isVariadic()) {
            array_pop($parameters);
        }
        $this->defaultArgument->names = new \ArrayObject();

foreach ($parameters as $index => $parameter) {
            $this->defaultArgument->names[$index] = $parameter->name;

if (\array_key_exists($index, $arguments) && '' !== $arguments[$index]) {
                continue;
            }

$type = ProxyHelper::getTypeHint($reflectionMethod, $parameter, true);

if ($checkAttributes) {
                foreach ($parameter->getAttributes() as $attribute) {
                    if (TaggedIterator::class === $attribute->getName()) {
                        $attribute = $attribute->newInstance();
                        $arguments[$index] = new TaggedIteratorArgument($attribute->tag, $attribute->indexAttribute, $attribute->defaultIndexMethod, false, $attribute->defaultPriorityMethod);
                        break;
                    }

if (TaggedLocator::class === $attribute->getName()) {
                        $attribute = $attribute->newInstance();
                        $arguments[$index] = new ServiceLocatorArgument(new TaggedIteratorArgument($attribute->tag, $attribute->indexAttribute, $attribute->defaultIndexMethod, true, $attribute->defaultPriorityMethod));
                        break;
                    }
                }

if ('' !== ($arguments[$index] ?? '')) {
                    continue;
                }
            }

if (!$type) {
                if (isset($arguments[$index])) {
                    continue;
                }

// no default value? Then fail
                if (!$parameter->isDefaultValueAvailable()) {
                    // For core classes, isDefaultValueAvailable() can
                    // be false when isOptional() returns true. If the
                    // argument *is* optional, allow it to be missing
                    if ($parameter->isOptional()) {
                        --$index;
                        break;
                    }
                    $type = ProxyHelper::getTypeHint($reflectionMethod, $parameter, false);
                    $type = $type ? sprintf('is type-hinted "%s"', ltrim($type, '\\')) : 'has no type-hint';

throw new AutowiringFailedException($this->currentId, sprintf('Cannot autowire service "%s": argument "$%s" of method "%s()" %s, you should configure its value explicitly.', $this->currentId, $parameter->name, $class !== $this->currentId ? $class.'::'.$method : $method, $type));
                }

// specifically pass the default value
                $arguments[$index] = clone $this->defaultArgument;
                $arguments[$index]->value = $parameter->getDefaultValue();

continue;
            }

$getValue = function () use ($type, $parameter, $class, $method) {
                if (!$value = $this->getAutowiredReference($ref = new TypedReference($type, $type, ContainerBuilder::EXCEPTION_ON_INVALID_REFERENCE, Target::parseName($parameter)), true)) {
                    $failureMessage = $this->createTypeNotFoundMessageCallback($ref, sprintf('argument "$%s" of method "%s()"', $parameter->name, $class !== $this->currentId ? $class.'::'.$method : $method));

if ($parameter->isDefaultValueAvailable()) {
                        $value = clone $this->defaultArgument;
                        $value->value = $parameter->getDefaultValue();
                    } elseif (!$parameter->allowsNull()) {
                        throw new AutowiringFailedException($this->currentId, $failureMessage);
                    }
                }

return $value;
            };

if ($this->decoratedClass && $isDecorated = is_a($this->decoratedClass, $type, true)) {
                if ($this->getPreviousValue) {
                    // The inner service is injected only if there is only 1 argument matching the type of the decorated class
                    // across all arguments of all autowired methods.
                    // If a second matching argument is found, the default behavior is restored.

$getPreviousValue = $this->getPreviousValue;
                    $this->methodCalls[$this->decoratedMethodIndex][1][$this->decoratedMethodArgumentIndex] = $getPreviousValue();
                    $this->decoratedClass = null; // Prevent further checks
                } else {
                    $arguments[$index] = new TypedReference($this->decoratedId, $this->decoratedClass);
                    $this->getPreviousValue = $getValue;
                    $this->decoratedMethodIndex = $methodIndex;
                    $this->decoratedMethodArgumentIndex = $index;

continue;
                }
            }

$arguments[$index] = $getValue();
        }

if ($parameters && !isset($arguments[++$index])) {
            while (0 <= --$index) {
                if (!$arguments[$index] instanceof $this->defaultArgument) {
                    break;
                }
                unset($arguments[$index]);
            }
        }

// it's possible index 1 was set, then index 0, then 2, etc
        // make sure that we re-order so they're injected as expected
        ksort($arguments);

return $arguments;
    }

/**
     * Returns a reference to the service matching the given type, if any.
     */
    private function getAutowiredReference(TypedReference $reference, bool $filterType): ?TypedReference
    {
        $this->lastFailure = null;
        $type = $reference->getType();

if ($type !== (string) $reference) {
            return $reference;
        }

if ($filterType && false !== $m = strpbrk($type, '&|')) {
            $types = array_diff(explode($m[0], $type), ['int', 'string', 'array', 'bool', 'float', 'iterable', 'object', 'callable', 'null']);

sort($types);

$type = implode($m[0], $types);
        }

if (null !== $name = $reference->getName()) {
            if ($this->container->has($alias = $type.' $'.$name) && !$this->container->findDefinition($alias)->isAbstract()) {
                return new TypedReference($alias, $type, $reference->getInvalidBehavior());
            }

if (null !== ($alias = $this->combinedAliases[$alias] ?? null) && !$this->container->findDefinition($alias)->isAbstract()) {
                return new TypedReference($alias, $type, $reference->getInvalidBehavior());
            }

if ($this->container->has($name) && !$this->container->findDefinition($name)->isAbstract()) {
                foreach ($this->container->getAliases() + $this->combinedAliases as $id => $alias) {
                    if ($name === (string) $alias && str_starts_with($id, $type.' $')) {
                        return new TypedReference($name, $type, $reference->getInvalidBehavior());
                    }
                }
            }
        }

if ($this->container->has($type) && !$this->container->findDefinition($type)->isAbstract()) {
            return new TypedReference($type, $type, $reference->getInvalidBehavior());
        }

if (null !== ($alias = $this->combinedAliases[$type] ?? null) && !$this->container->findDefinition($alias)->isAbstract()) {
            return new TypedReference($alias, $type, $reference->getInvalidBehavior());
        }

return null;
    }

/**
     * Populates the list of available types.
     */
    private function populateAvailableTypes(ContainerBuilder $container)
    {
        $this->types = [];
        $this->ambiguousServiceTypes = [];
        $this->autowiringAliases = [];

foreach ($container->getDefinitions() as $id => $definition) {
            $this->populateAvailableType($container, $id, $definition);
        }

foreach ($container->getAliases() as $id => $alias) {
            $this->populateAutowiringAlias($id);
        }
    }

/**
     * Populates the list of available types for a given definition.
     */
    private function populateAvailableType(ContainerBuilder $container, string $id, Definition $definition)
    {
        // Never use abstract services
        if ($definition->isAbstract()) {
            return;
        }

if ('' === $id || '.' === $id[0] || $definition->isDeprecated() || !$reflectionClass = $container->getReflectionClass($definition->getClass(), false)) {
            return;
        }

foreach ($reflectionClass->getInterfaces() as $reflectionInterface) {
            $this->set($reflectionInterface->name, $id);
        }

do {
            $this->set($reflectionClass->name, $id);
        } while ($reflectionClass = $reflectionClass->getParentClass());

$this->populateAutowiringAlias($id);
    }

/**
     * Associates a type and a service id if applicable.
     */
    private function set(string $type, string $id)
    {
        // is this already a type/class that is known to match multiple services?
        if (isset($this->ambiguousServiceTypes[$type])) {
            $this->ambiguousServiceTypes[$type][] = $id;

return;
        }

// check to make sure the type doesn't match multiple services
        if (!isset($this->types[$type]) || $this->types[$type] === $id) {
            $this->types[$type] = $id;

return;
        }

// keep an array of all services matching this type
        if (!isset($this->ambiguousServiceTypes[$type])) {
            $this->ambiguousServiceTypes[$type] = [$this->types[$type]];
            unset($this->types[$type]);
        }
        $this->ambiguousServiceTypes[$type][] = $id;
    }

private function createTypeNotFoundMessageCallback(TypedReference $reference, string $label): \Closure
    {
        if (null === $this->typesClone->container) {
            $this->typesClone->container = new ContainerBuilder($this->container->getParameterBag());
            $this->typesClone->container->setAliases($this->container->getAliases());
            $this->typesClone->container->setDefinitions($this->container->getDefinitions());
            $this->typesClone->container->setResourceTracking(false);
        }
        $currentId = $this->currentId;

return (function () use ($reference, $label, $currentId) {
            return $this->createTypeNotFoundMessage($reference, $label, $currentId);
        })->bindTo($this->typesClone);
    }

private function createTypeNotFoundMessage(TypedReference $reference, string $label, string $currentId): string
    {
        if (!$r = $this->container->getReflectionClass($type = $reference->getType(), false)) {
            // either $type does not exist or a parent class does not exist
            try {
                $resource = new ClassExistenceResource($type, false);
                // isFresh() will explode ONLY if a parent class/trait does not exist
                $resource->isFresh(0);
                $parentMsg = false;
            } catch (\ReflectionException $e) {
                $parentMsg = $e->getMessage();
            }

$message = sprintf('has type "%s" but this class %s.', $type, $parentMsg ? sprintf('is missing a parent class (%s)', $parentMsg) : 'was not found');
        } else {
            $alternatives = $this->createTypeAlternatives($this->container, $reference);
            $message = $this->container->has($type) ? 'this service is abstract' : 'no such service exists';
            $message = sprintf('references %s "%s" but %s.%s', $r->isInterface() ? 'interface' : 'class', $type, $message, $alternatives);

if ($r->isInterface() && !$alternatives) {
                $message .= ' Did you create a class that implements this interface?';
            }
        }

$message = sprintf('Cannot autowire service "%s": %s %s', $currentId, $label, $message);

if (null !== $this->lastFailure) {
            $message = $this->lastFailure."\n".$message;
            $this->lastFailure = null;
        }

return $message;
    }

private function createTypeAlternatives(ContainerBuilder $container, TypedReference $reference): string
    {
        // try suggesting available aliases first
        if ($message = $this->getAliasesSuggestionForType($container, $type = $reference->getType())) {
            return ' '.$message;
        }
        if (null === $this->ambiguousServiceTypes) {
            $this->populateAvailableTypes($container);
        }

$servicesAndAliases = $container->getServiceIds();
        if (null !== ($autowiringAliases = $this->autowiringAliases[$type] ?? null) && !isset($autowiringAliases[''])) {
            return sprintf(' Available autowiring aliases for this %s are: "$%s".', class_exists($type, false) ? 'class' : 'interface', implode('", "$', $autowiringAliases));
        }

if (!$container->has($type) && false !== $key = array_search(strtolower($type), array_map('strtolower', $servicesAndAliases))) {
            return sprintf(' Did you mean "%s"?', $servicesAndAliases[$key]);
        } elseif (isset($this->ambiguousServiceTypes[$type])) {
            $message = sprintf('one of these existing services: "%s"', implode('", "', $this->ambiguousServiceTypes[$type]));
        } elseif (isset($this->types[$type])) {
            $message = sprintf('the existing "%s" service', $this->types[$type]);
        } else {
            return '';
        }

return sprintf(' You should maybe alias this %s to %s.', class_exists($type, false) ? 'class' : 'interface', $message);
    }

private function getAliasesSuggestionForType(ContainerBuilder $container, string $type): ?string
    {
        $aliases = [];
        foreach (class_parents($type) + class_implements($type) as $parent) {
            if ($container->has($parent) && !$container->findDefinition($parent)->isAbstract()) {
                $aliases[] = $parent;
            }
        }

if (1 < $len = \count($aliases)) {
            $message = 'Try changing the type-hint to one of its parents: ';
            for ($i = 0, --$len; $i < $len; ++$i) {
                $message .= sprintf('%s "%s", ', class_exists($aliases[$i], false) ? 'class' : 'interface', $aliases[$i]);
            }
            $message .= sprintf('or %s "%s".', class_exists($aliases[$i], false) ? 'class' : 'interface', $aliases[$i]);

return $message;
        }

if ($aliases) {
            return sprintf('Try changing the type-hint to "%s" instead.', $aliases[0]);
        }

return null;
    }

private function populateAutowiringAlias(string $id): void
    {
        if (!preg_match('/(?(DEFINE)(?<V>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+))^((?&V)(?:\\\\(?&V))*+)(?: \$((?&V)))?$/', $id, $m)) {
            return;
        }

$type = $m[2];
        $name = $m[3] ?? '';

if (class_exists($type, false) || interface_exists($type, false)) {
            $this->autowiringAliases[$type][$name] = $name;
        }
    }

private function populateCombinedAliases(ContainerBuilder $container): void
    {
        $this->combinedAliases = [];
        $reverseAliases = [];

foreach ($container->getAliases() as $id => $alias) {
            if (!preg_match('/(?(DEFINE)(?<V>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+))^((?&V)(?:\\\\(?&V))*+)(?: \$((?&V)))?$/', $id, $m)) {
                continue;
            }

$type = $m[2];
            $name = $m[3] ?? '';
            $reverseAliases[(string) $alias][$name][] = $type;
        }

foreach ($reverseAliases as $alias => $names) {
            foreach ($names as $name => $types) {
                if (2 > $count = \count($types)) {
                    continue;
                }
                sort($types);
                $i = 1 << $count;

// compute the powerset of the list of types
                while ($i--) {
                    $set = [];
                    for ($j = 0; $j < $count; ++$j) {
                        if ($i & (1 << $j)) {
                            $set[] = $types[$j];
                        }
                    }

if (2 <= \count($set)) {
                        $this->combinedAliases[implode('&', $set).('' === $name ? '' : ' $'.$name)] = $alias;
                        $this->combinedAliases[implode('|', $set).('' === $name ? '' : ' $'.$name)] = $alias;
                    }
                }
            }
        }
    }
}

cmd: