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625 lines
25 KiB
625 lines
25 KiB
<?php |
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Symfony\Component\DependencyInjection\Compiler; |
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use Symfony\Component\Config\Resource\ClassExistenceResource; |
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use Symfony\Component\DependencyInjection\Argument\ServiceLocatorArgument; |
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use Symfony\Component\DependencyInjection\Argument\TaggedIteratorArgument; |
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use Symfony\Component\DependencyInjection\Attribute\TaggedIterator; |
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use Symfony\Component\DependencyInjection\Attribute\TaggedLocator; |
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use Symfony\Component\DependencyInjection\Attribute\Target; |
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use Symfony\Component\DependencyInjection\ContainerBuilder; |
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use Symfony\Component\DependencyInjection\Definition; |
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use Symfony\Component\DependencyInjection\Exception\AutowiringFailedException; |
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use Symfony\Component\DependencyInjection\Exception\RuntimeException; |
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use Symfony\Component\DependencyInjection\LazyProxy\ProxyHelper; |
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use Symfony\Component\DependencyInjection\TypedReference; |
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/** |
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* Inspects existing service definitions and wires the autowired ones using the type hints of their classes. |
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* |
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* @author Kévin Dunglas <dunglas@gmail.com> |
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* @author Nicolas Grekas <p@tchwork.com> |
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*/ |
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class AutowirePass extends AbstractRecursivePass |
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{ |
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private $types; |
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private $ambiguousServiceTypes; |
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private $autowiringAliases; |
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private $lastFailure; |
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private $throwOnAutowiringException; |
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private $decoratedClass; |
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private $decoratedId; |
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private $methodCalls; |
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private $defaultArgument; |
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private $getPreviousValue; |
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private $decoratedMethodIndex; |
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private $decoratedMethodArgumentIndex; |
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private $typesClone; |
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private $combinedAliases; |
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public function __construct(bool $throwOnAutowireException = true) |
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{ |
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$this->throwOnAutowiringException = $throwOnAutowireException; |
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$this->defaultArgument = new class() { |
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public $value; |
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public $names; |
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}; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(ContainerBuilder $container) |
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{ |
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$this->populateCombinedAliases($container); |
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try { |
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$this->typesClone = clone $this; |
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parent::process($container); |
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} finally { |
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$this->decoratedClass = null; |
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$this->decoratedId = null; |
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$this->methodCalls = null; |
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$this->defaultArgument->names = null; |
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$this->getPreviousValue = null; |
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$this->decoratedMethodIndex = null; |
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$this->decoratedMethodArgumentIndex = null; |
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$this->typesClone = null; |
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$this->combinedAliases = []; |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function processValue($value, bool $isRoot = false) |
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{ |
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try { |
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return $this->doProcessValue($value, $isRoot); |
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} catch (AutowiringFailedException $e) { |
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if ($this->throwOnAutowiringException) { |
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throw $e; |
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} |
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$this->container->getDefinition($this->currentId)->addError($e->getMessageCallback() ?? $e->getMessage()); |
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return parent::processValue($value, $isRoot); |
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} |
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} |
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/** |
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* @return mixed |
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*/ |
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private function doProcessValue($value, bool $isRoot = false) |
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{ |
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if ($value instanceof TypedReference) { |
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if ($ref = $this->getAutowiredReference($value, true)) { |
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return $ref; |
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} |
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if (ContainerBuilder::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE === $value->getInvalidBehavior()) { |
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$message = $this->createTypeNotFoundMessageCallback($value, 'it'); |
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// since the error message varies by referenced id and $this->currentId, so should the id of the dummy errored definition |
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$this->container->register($id = sprintf('.errored.%s.%s', $this->currentId, (string) $value), $value->getType()) |
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->addError($message); |
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return new TypedReference($id, $value->getType(), $value->getInvalidBehavior(), $value->getName()); |
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} |
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} |
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$value = parent::processValue($value, $isRoot); |
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if (!$value instanceof Definition || !$value->isAutowired() || $value->isAbstract() || !$value->getClass()) { |
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return $value; |
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} |
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if (!$reflectionClass = $this->container->getReflectionClass($value->getClass(), false)) { |
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$this->container->log($this, sprintf('Skipping service "%s": Class or interface "%s" cannot be loaded.', $this->currentId, $value->getClass())); |
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return $value; |
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} |
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$this->methodCalls = $value->getMethodCalls(); |
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try { |
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$constructor = $this->getConstructor($value, false); |
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} catch (RuntimeException $e) { |
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throw new AutowiringFailedException($this->currentId, $e->getMessage(), 0, $e); |
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} |
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if ($constructor) { |
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array_unshift($this->methodCalls, [$constructor, $value->getArguments()]); |
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} |
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$checkAttributes = 80000 <= \PHP_VERSION_ID && !$value->hasTag('container.ignore_attributes'); |
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$this->methodCalls = $this->autowireCalls($reflectionClass, $isRoot, $checkAttributes); |
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if ($constructor) { |
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[, $arguments] = array_shift($this->methodCalls); |
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if ($arguments !== $value->getArguments()) { |
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$value->setArguments($arguments); |
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} |
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} |
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if ($this->methodCalls !== $value->getMethodCalls()) { |
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$value->setMethodCalls($this->methodCalls); |
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} |
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return $value; |
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} |
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private function autowireCalls(\ReflectionClass $reflectionClass, bool $isRoot, bool $checkAttributes): array |
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{ |
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$this->decoratedId = null; |
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$this->decoratedClass = null; |
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$this->getPreviousValue = null; |
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if ($isRoot && ($definition = $this->container->getDefinition($this->currentId)) && null !== ($this->decoratedId = $definition->innerServiceId) && $this->container->has($this->decoratedId)) { |
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$this->decoratedClass = $this->container->findDefinition($this->decoratedId)->getClass(); |
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} |
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$patchedIndexes = []; |
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foreach ($this->methodCalls as $i => $call) { |
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[$method, $arguments] = $call; |
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if ($method instanceof \ReflectionFunctionAbstract) { |
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$reflectionMethod = $method; |
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} else { |
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$definition = new Definition($reflectionClass->name); |
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try { |
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$reflectionMethod = $this->getReflectionMethod($definition, $method); |
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} catch (RuntimeException $e) { |
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if ($definition->getFactory()) { |
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continue; |
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} |
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throw $e; |
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} |
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} |
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$arguments = $this->autowireMethod($reflectionMethod, $arguments, $checkAttributes, $i); |
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if ($arguments !== $call[1]) { |
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$this->methodCalls[$i][1] = $arguments; |
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$patchedIndexes[] = $i; |
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} |
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} |
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// use named arguments to skip complex default values |
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foreach ($patchedIndexes as $i) { |
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$namedArguments = null; |
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$arguments = $this->methodCalls[$i][1]; |
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foreach ($arguments as $j => $value) { |
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if ($namedArguments && !$value instanceof $this->defaultArgument) { |
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unset($arguments[$j]); |
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$arguments[$namedArguments[$j]] = $value; |
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} |
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if ($namedArguments || !$value instanceof $this->defaultArgument) { |
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continue; |
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} |
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if (\PHP_VERSION_ID >= 80100 && (\is_array($value->value) ? $value->value : \is_object($value->value))) { |
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unset($arguments[$j]); |
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$namedArguments = $value->names; |
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} else { |
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$arguments[$j] = $value->value; |
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} |
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} |
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$this->methodCalls[$i][1] = $arguments; |
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} |
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return $this->methodCalls; |
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} |
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/** |
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* Autowires the constructor or a method. |
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* |
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* @throws AutowiringFailedException |
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*/ |
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private function autowireMethod(\ReflectionFunctionAbstract $reflectionMethod, array $arguments, bool $checkAttributes, int $methodIndex): array |
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{ |
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$class = $reflectionMethod instanceof \ReflectionMethod ? $reflectionMethod->class : $this->currentId; |
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$method = $reflectionMethod->name; |
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$parameters = $reflectionMethod->getParameters(); |
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if ($reflectionMethod->isVariadic()) { |
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array_pop($parameters); |
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} |
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$this->defaultArgument->names = new \ArrayObject(); |
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foreach ($parameters as $index => $parameter) { |
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$this->defaultArgument->names[$index] = $parameter->name; |
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if (\array_key_exists($index, $arguments) && '' !== $arguments[$index]) { |
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continue; |
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} |
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$type = ProxyHelper::getTypeHint($reflectionMethod, $parameter, true); |
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if ($checkAttributes) { |
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foreach ($parameter->getAttributes() as $attribute) { |
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if (TaggedIterator::class === $attribute->getName()) { |
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$attribute = $attribute->newInstance(); |
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$arguments[$index] = new TaggedIteratorArgument($attribute->tag, $attribute->indexAttribute, $attribute->defaultIndexMethod, false, $attribute->defaultPriorityMethod); |
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break; |
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} |
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if (TaggedLocator::class === $attribute->getName()) { |
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$attribute = $attribute->newInstance(); |
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$arguments[$index] = new ServiceLocatorArgument(new TaggedIteratorArgument($attribute->tag, $attribute->indexAttribute, $attribute->defaultIndexMethod, true, $attribute->defaultPriorityMethod)); |
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break; |
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} |
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} |
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if ('' !== ($arguments[$index] ?? '')) { |
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continue; |
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} |
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} |
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if (!$type) { |
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if (isset($arguments[$index])) { |
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continue; |
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} |
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// no default value? Then fail |
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if (!$parameter->isDefaultValueAvailable()) { |
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// For core classes, isDefaultValueAvailable() can |
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// be false when isOptional() returns true. If the |
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// argument *is* optional, allow it to be missing |
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if ($parameter->isOptional()) { |
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--$index; |
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break; |
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} |
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$type = ProxyHelper::getTypeHint($reflectionMethod, $parameter, false); |
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$type = $type ? sprintf('is type-hinted "%s"', ltrim($type, '\\')) : 'has no type-hint'; |
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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, $type)); |
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} |
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// specifically pass the default value |
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$arguments[$index] = clone $this->defaultArgument; |
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$arguments[$index]->value = $parameter->getDefaultValue(); |
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continue; |
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} |
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$getValue = function () use ($type, $parameter, $class, $method) { |
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if (!$value = $this->getAutowiredReference($ref = new TypedReference($type, $type, ContainerBuilder::EXCEPTION_ON_INVALID_REFERENCE, Target::parseName($parameter)), true)) { |
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$failureMessage = $this->createTypeNotFoundMessageCallback($ref, sprintf('argument "$%s" of method "%s()"', $parameter->name, $class !== $this->currentId ? $class.'::'.$method : $method)); |
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if ($parameter->isDefaultValueAvailable()) { |
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$value = clone $this->defaultArgument; |
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$value->value = $parameter->getDefaultValue(); |
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} elseif (!$parameter->allowsNull()) { |
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throw new AutowiringFailedException($this->currentId, $failureMessage); |
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} |
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} |
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return $value; |
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}; |
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if ($this->decoratedClass && $isDecorated = is_a($this->decoratedClass, $type, true)) { |
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if ($this->getPreviousValue) { |
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// The inner service is injected only if there is only 1 argument matching the type of the decorated class |
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// across all arguments of all autowired methods. |
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// If a second matching argument is found, the default behavior is restored. |
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$getPreviousValue = $this->getPreviousValue; |
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$this->methodCalls[$this->decoratedMethodIndex][1][$this->decoratedMethodArgumentIndex] = $getPreviousValue(); |
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$this->decoratedClass = null; // Prevent further checks |
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} else { |
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$arguments[$index] = new TypedReference($this->decoratedId, $this->decoratedClass); |
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$this->getPreviousValue = $getValue; |
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$this->decoratedMethodIndex = $methodIndex; |
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$this->decoratedMethodArgumentIndex = $index; |
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continue; |
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} |
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} |
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$arguments[$index] = $getValue(); |
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} |
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if ($parameters && !isset($arguments[++$index])) { |
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while (0 <= --$index) { |
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if (!$arguments[$index] instanceof $this->defaultArgument) { |
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break; |
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} |
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unset($arguments[$index]); |
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} |
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} |
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// it's possible index 1 was set, then index 0, then 2, etc |
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// make sure that we re-order so they're injected as expected |
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ksort($arguments); |
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return $arguments; |
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} |
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/** |
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* Returns a reference to the service matching the given type, if any. |
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*/ |
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private function getAutowiredReference(TypedReference $reference, bool $filterType): ?TypedReference |
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{ |
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$this->lastFailure = null; |
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$type = $reference->getType(); |
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if ($type !== (string) $reference) { |
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return $reference; |
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} |
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if ($filterType && false !== $m = strpbrk($type, '&|')) { |
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$types = array_diff(explode($m[0], $type), ['int', 'string', 'array', 'bool', 'float', 'iterable', 'object', 'callable', 'null']); |
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sort($types); |
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$type = implode($m[0], $types); |
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} |
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if (null !== $name = $reference->getName()) { |
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if ($this->container->has($alias = $type.' $'.$name) && !$this->container->findDefinition($alias)->isAbstract()) { |
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return new TypedReference($alias, $type, $reference->getInvalidBehavior()); |
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} |
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if (null !== ($alias = $this->combinedAliases[$alias] ?? null) && !$this->container->findDefinition($alias)->isAbstract()) { |
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return new TypedReference($alias, $type, $reference->getInvalidBehavior()); |
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} |
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if ($this->container->has($name) && !$this->container->findDefinition($name)->isAbstract()) { |
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foreach ($this->container->getAliases() + $this->combinedAliases as $id => $alias) { |
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if ($name === (string) $alias && str_starts_with($id, $type.' $')) { |
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return new TypedReference($name, $type, $reference->getInvalidBehavior()); |
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} |
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} |
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} |
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} |
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if ($this->container->has($type) && !$this->container->findDefinition($type)->isAbstract()) { |
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return new TypedReference($type, $type, $reference->getInvalidBehavior()); |
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} |
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if (null !== ($alias = $this->combinedAliases[$type] ?? null) && !$this->container->findDefinition($alias)->isAbstract()) { |
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return new TypedReference($alias, $type, $reference->getInvalidBehavior()); |
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} |
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return null; |
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} |
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/** |
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* Populates the list of available types. |
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*/ |
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private function populateAvailableTypes(ContainerBuilder $container) |
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{ |
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$this->types = []; |
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$this->ambiguousServiceTypes = []; |
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$this->autowiringAliases = []; |
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foreach ($container->getDefinitions() as $id => $definition) { |
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$this->populateAvailableType($container, $id, $definition); |
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} |
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foreach ($container->getAliases() as $id => $alias) { |
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$this->populateAutowiringAlias($id); |
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} |
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} |
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/** |
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* Populates the list of available types for a given definition. |
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*/ |
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private function populateAvailableType(ContainerBuilder $container, string $id, Definition $definition) |
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{ |
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// Never use abstract services |
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if ($definition->isAbstract()) { |
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return; |
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} |
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if ('' === $id || '.' === $id[0] || $definition->isDeprecated() || !$reflectionClass = $container->getReflectionClass($definition->getClass(), false)) { |
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return; |
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} |
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foreach ($reflectionClass->getInterfaces() as $reflectionInterface) { |
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$this->set($reflectionInterface->name, $id); |
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} |
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do { |
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$this->set($reflectionClass->name, $id); |
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} while ($reflectionClass = $reflectionClass->getParentClass()); |
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$this->populateAutowiringAlias($id); |
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} |
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/** |
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* Associates a type and a service id if applicable. |
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*/ |
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private function set(string $type, string $id) |
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{ |
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// is this already a type/class that is known to match multiple services? |
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if (isset($this->ambiguousServiceTypes[$type])) { |
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$this->ambiguousServiceTypes[$type][] = $id; |
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return; |
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} |
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// check to make sure the type doesn't match multiple services |
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if (!isset($this->types[$type]) || $this->types[$type] === $id) { |
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$this->types[$type] = $id; |
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return; |
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} |
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// keep an array of all services matching this type |
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if (!isset($this->ambiguousServiceTypes[$type])) { |
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$this->ambiguousServiceTypes[$type] = [$this->types[$type]]; |
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unset($this->types[$type]); |
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} |
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$this->ambiguousServiceTypes[$type][] = $id; |
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} |
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private function createTypeNotFoundMessageCallback(TypedReference $reference, string $label): \Closure |
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{ |
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if (null === $this->typesClone->container) { |
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$this->typesClone->container = new ContainerBuilder($this->container->getParameterBag()); |
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$this->typesClone->container->setAliases($this->container->getAliases()); |
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$this->typesClone->container->setDefinitions($this->container->getDefinitions()); |
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$this->typesClone->container->setResourceTracking(false); |
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} |
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$currentId = $this->currentId; |
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return (function () use ($reference, $label, $currentId) { |
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return $this->createTypeNotFoundMessage($reference, $label, $currentId); |
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})->bindTo($this->typesClone); |
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} |
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private function createTypeNotFoundMessage(TypedReference $reference, string $label, string $currentId): string |
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{ |
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if (!$r = $this->container->getReflectionClass($type = $reference->getType(), false)) { |
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// either $type does not exist or a parent class does not exist |
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try { |
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$resource = new ClassExistenceResource($type, false); |
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// isFresh() will explode ONLY if a parent class/trait does not exist |
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$resource->isFresh(0); |
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$parentMsg = false; |
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} catch (\ReflectionException $e) { |
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$parentMsg = $e->getMessage(); |
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} |
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$message = sprintf('has type "%s" but this class %s.', $type, $parentMsg ? sprintf('is missing a parent class (%s)', $parentMsg) : 'was not found'); |
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} else { |
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$alternatives = $this->createTypeAlternatives($this->container, $reference); |
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$message = $this->container->has($type) ? 'this service is abstract' : 'no such service exists'; |
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$message = sprintf('references %s "%s" but %s.%s', $r->isInterface() ? 'interface' : 'class', $type, $message, $alternatives); |
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if ($r->isInterface() && !$alternatives) { |
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$message .= ' Did you create a class that implements this interface?'; |
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} |
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} |
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$message = sprintf('Cannot autowire service "%s": %s %s', $currentId, $label, $message); |
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if (null !== $this->lastFailure) { |
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$message = $this->lastFailure."\n".$message; |
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$this->lastFailure = null; |
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} |
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return $message; |
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} |
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private function createTypeAlternatives(ContainerBuilder $container, TypedReference $reference): string |
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{ |
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// try suggesting available aliases first |
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if ($message = $this->getAliasesSuggestionForType($container, $type = $reference->getType())) { |
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return ' '.$message; |
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} |
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if (null === $this->ambiguousServiceTypes) { |
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$this->populateAvailableTypes($container); |
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} |
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$servicesAndAliases = $container->getServiceIds(); |
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if (null !== ($autowiringAliases = $this->autowiringAliases[$type] ?? null) && !isset($autowiringAliases[''])) { |
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return sprintf(' Available autowiring aliases for this %s are: "$%s".', class_exists($type, false) ? 'class' : 'interface', implode('", "$', $autowiringAliases)); |
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} |
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if (!$container->has($type) && false !== $key = array_search(strtolower($type), array_map('strtolower', $servicesAndAliases))) { |
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return sprintf(' Did you mean "%s"?', $servicesAndAliases[$key]); |
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} elseif (isset($this->ambiguousServiceTypes[$type])) { |
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$message = sprintf('one of these existing services: "%s"', implode('", "', $this->ambiguousServiceTypes[$type])); |
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} elseif (isset($this->types[$type])) { |
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$message = sprintf('the existing "%s" service', $this->types[$type]); |
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} else { |
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return ''; |
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} |
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return sprintf(' You should maybe alias this %s to %s.', class_exists($type, false) ? 'class' : 'interface', $message); |
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} |
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private function getAliasesSuggestionForType(ContainerBuilder $container, string $type): ?string |
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{ |
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$aliases = []; |
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foreach (class_parents($type) + class_implements($type) as $parent) { |
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if ($container->has($parent) && !$container->findDefinition($parent)->isAbstract()) { |
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$aliases[] = $parent; |
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} |
|
} |
|
|
|
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; |
|
} |
|
} |
|
} |
|
} |
|
} |
|
}
|
|
|