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<?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;
use Psr\Container\ContainerInterface as PsrContainerInterface;
use Symfony\Component\Config\Resource\ClassExistenceResource;
use Symfony\Component\Config\Resource\ComposerResource;
use Symfony\Component\Config\Resource\DirectoryResource;
use Symfony\Component\Config\Resource\FileExistenceResource;
use Symfony\Component\Config\Resource\FileResource;
use Symfony\Component\Config\Resource\GlobResource;
use Symfony\Component\Config\Resource\ReflectionClassResource;
use Symfony\Component\Config\Resource\ResourceInterface;
use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
use Symfony\Component\DependencyInjection\Argument\ServiceLocator;
use Symfony\Component\DependencyInjection\Argument\ServiceLocatorArgument;
use Symfony\Component\DependencyInjection\Compiler\Compiler;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\Compiler\PassConfig;
use Symfony\Component\DependencyInjection\Compiler\ResolveEnvPlaceholdersPass;
use Symfony\Component\DependencyInjection\Exception\BadMethodCallException;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Exception\LogicException;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;
use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException;
use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\InstantiatorInterface;
use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\RealServiceInstantiator;
use Symfony\Component\DependencyInjection\ParameterBag\EnvPlaceholderParameterBag;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
use Symfony\Component\ExpressionLanguage\Expression;
use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
/**
* ContainerBuilder is a DI container that provides an API to easily describe services.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ContainerBuilder extends Container implements TaggedContainerInterface
{
/**
* @var ExtensionInterface[]
*/
private $extensions = [];
/**
* @var ExtensionInterface[]
*/
private $extensionsByNs = [];
/**
* @var Definition[]
*/
private $definitions = [];
/**
* @var Alias[]
*/
private $aliasDefinitions = [];
/**
* @var ResourceInterface[]
*/
private $resources = [];
private $extensionConfigs = [];
/**
* @var Compiler
*/
private $compiler;
private $trackResources;
/**
* @var InstantiatorInterface|null
*/
private $proxyInstantiator;
/**
* @var ExpressionLanguage|null
*/
private $expressionLanguage;
/**
* @var ExpressionFunctionProviderInterface[]
*/
private $expressionLanguageProviders = [];
/**
* @var string[] with tag names used by findTaggedServiceIds
*/
private $usedTags = [];
/**
* @var string[][] a map of env var names to their placeholders
*/
private $envPlaceholders = [];
/**
* @var int[] a map of env vars to their resolution counter
*/
private $envCounters = [];
/**
* @var string[] the list of vendor directories
*/
private $vendors;
private $autoconfiguredInstanceof = [];
private $removedIds = [];
private $removedBindingIds = [];
private static $internalTypes = [
'int' => true,
'float' => true,
'string' => true,
'bool' => true,
'resource' => true,
'object' => true,
'array' => true,
'null' => true,
'callable' => true,
'iterable' => true,
'mixed' => true,
];
public function __construct(ParameterBagInterface $parameterBag = null)
{
parent::__construct($parameterBag);
$this->trackResources = interface_exists('Symfony\Component\Config\Resource\ResourceInterface');
$this->setDefinition('service_container', (new Definition(ContainerInterface::class))->setSynthetic(true)->setPublic(true));
$this->setAlias(PsrContainerInterface::class, new Alias('service_container', false));
$this->setAlias(ContainerInterface::class, new Alias('service_container', false));
}
/**
* @var \ReflectionClass[] a list of class reflectors
*/
private $classReflectors;
/**
* Sets the track resources flag.
*
* If you are not using the loaders and therefore don't want
* to depend on the Config component, set this flag to false.
*
* @param bool $track True if you want to track resources, false otherwise
*/
public function setResourceTracking($track)
{
$this->trackResources = (bool) $track;
}
/**
* Checks if resources are tracked.
*
* @return bool true If resources are tracked, false otherwise
*/
public function isTrackingResources()
{
return $this->trackResources;
}
/**
* Sets the instantiator to be used when fetching proxies.
*/
public function setProxyInstantiator(InstantiatorInterface $proxyInstantiator)
{
$this->proxyInstantiator = $proxyInstantiator;
}
public function registerExtension(ExtensionInterface $extension)
{
$this->extensions[$extension->getAlias()] = $extension;
if (false !== $extension->getNamespace()) {
$this->extensionsByNs[$extension->getNamespace()] = $extension;
}
}
/**
* Returns an extension by alias or namespace.
*
* @param string $name An alias or a namespace
*
* @return ExtensionInterface An extension instance
*
* @throws LogicException if the extension is not registered
*/
public function getExtension($name)
{
if (isset($this->extensions[$name])) {
return $this->extensions[$name];
}
if (isset($this->extensionsByNs[$name])) {
return $this->extensionsByNs[$name];
}
throw new LogicException(sprintf('Container extension "%s" is not registered', $name));
}
/**
* Returns all registered extensions.
*
* @return ExtensionInterface[] An array of ExtensionInterface
*/
public function getExtensions()
{
return $this->extensions;
}
/**
* Checks if we have an extension.
*
* @param string $name The name of the extension
*
* @return bool If the extension exists
*/
public function hasExtension($name)
{
return isset($this->extensions[$name]) || isset($this->extensionsByNs[$name]);
}
/**
* Returns an array of resources loaded to build this configuration.
*
* @return ResourceInterface[] An array of resources
*/
public function getResources()
{
return array_values($this->resources);
}
/**
* @return $this
*/
public function addResource(ResourceInterface $resource)
{
if (!$this->trackResources) {
return $this;
}
if ($resource instanceof GlobResource && $this->inVendors($resource->getPrefix())) {
return $this;
}
$this->resources[(string) $resource] = $resource;
return $this;
}
/**
* Sets the resources for this configuration.
*
* @param ResourceInterface[] $resources An array of resources
*
* @return $this
*/
public function setResources(array $resources)
{
if (!$this->trackResources) {
return $this;
}
$this->resources = $resources;
return $this;
}
/**
* Adds the object class hierarchy as resources.
*
* @param object|string $object An object instance or class name
*
* @return $this
*/
public function addObjectResource($object)
{
if ($this->trackResources) {
if (\is_object($object)) {
$object = \get_class($object);
}
if (!isset($this->classReflectors[$object])) {
$this->classReflectors[$object] = new \ReflectionClass($object);
}
$class = $this->classReflectors[$object];
foreach ($class->getInterfaceNames() as $name) {
if (null === $interface = &$this->classReflectors[$name]) {
$interface = new \ReflectionClass($name);
}
$file = $interface->getFileName();
if (false !== $file && file_exists($file)) {
$this->fileExists($file);
}
}
do {
$file = $class->getFileName();
if (false !== $file && file_exists($file)) {
$this->fileExists($file);
}
foreach ($class->getTraitNames() as $name) {
$this->addObjectResource($name);
}
} while ($class = $class->getParentClass());
}
return $this;
}
/**
* Retrieves the requested reflection class and registers it for resource tracking.
*
* @throws \ReflectionException when a parent class/interface/trait is not found and $throw is true
*
* @final
*/
public function getReflectionClass(?string $class, bool $throw = true): ?\ReflectionClass
{
if (!$class = $this->getParameterBag()->resolveValue($class)) {
return null;
}
if (isset(self::$internalTypes[$class])) {
return null;
}
$resource = null;
try {
if (isset($this->classReflectors[$class])) {
$classReflector = $this->classReflectors[$class];
} elseif (class_exists(ClassExistenceResource::class)) {
$resource = new ClassExistenceResource($class, false);
$classReflector = $resource->isFresh(0) ? false : new \ReflectionClass($class);
} else {
$classReflector = class_exists($class) ? new \ReflectionClass($class) : false;
}
} catch (\ReflectionException $e) {
if ($throw) {
throw $e;
}
$classReflector = false;
}
if ($this->trackResources) {
if (!$classReflector) {
$this->addResource($resource ?: new ClassExistenceResource($class, false));
} elseif (!$classReflector->isInternal()) {
$path = $classReflector->getFileName();
if (!$this->inVendors($path)) {
$this->addResource(new ReflectionClassResource($classReflector, $this->vendors));
}
}
$this->classReflectors[$class] = $classReflector;
}
return $classReflector ?: null;
}
/**
* Checks whether the requested file or directory exists and registers the result for resource tracking.
*
* @param string $path The file or directory path for which to check the existence
* @param bool|string $trackContents Whether to track contents of the given resource. If a string is passed,
* it will be used as pattern for tracking contents of the requested directory
*
* @return bool
*
* @final
*/
public function fileExists(string $path, $trackContents = true): bool
{
$exists = file_exists($path);
if (!$this->trackResources || $this->inVendors($path)) {
return $exists;
}
if (!$exists) {
$this->addResource(new FileExistenceResource($path));
return $exists;
}
if (is_dir($path)) {
if ($trackContents) {
$this->addResource(new DirectoryResource($path, \is_string($trackContents) ? $trackContents : null));
} else {
$this->addResource(new GlobResource($path, '/*', false));
}
} elseif ($trackContents) {
$this->addResource(new FileResource($path));
}
return $exists;
}
/**
* Loads the configuration for an extension.
*
* @param string $extension The extension alias or namespace
* @param array $values An array of values that customizes the extension
*
* @return $this
*
* @throws BadMethodCallException When this ContainerBuilder is compiled
* @throws \LogicException if the extension is not registered
*/
public function loadFromExtension($extension, array $values = null)
{
if ($this->isCompiled()) {
throw new BadMethodCallException('Cannot load from an extension on a compiled container.');
}
if (\func_num_args() < 2) {
$values = [];
}
$namespace = $this->getExtension($extension)->getAlias();
$this->extensionConfigs[$namespace][] = $values;
return $this;
}
/**
* Adds a compiler pass.
*
* @param CompilerPassInterface $pass A compiler pass
* @param string $type The type of compiler pass
* @param int $priority Used to sort the passes
*
* @return $this
*/
public function addCompilerPass(CompilerPassInterface $pass, $type = PassConfig::TYPE_BEFORE_OPTIMIZATION, int $priority = 0)
{
$this->getCompiler()->addPass($pass, $type, $priority);
$this->addObjectResource($pass);
return $this;
}
/**
* Returns the compiler pass config which can then be modified.
*
* @return PassConfig The compiler pass config
*/
public function getCompilerPassConfig()
{
return $this->getCompiler()->getPassConfig();
}
/**
* Returns the compiler.
*
* @return Compiler The compiler
*/
public function getCompiler()
{
if (null === $this->compiler) {
$this->compiler = new Compiler();
}
return $this->compiler;
}
/**
* Sets a service.
*
* @param string $id The service identifier
* @param object $service The service instance
*
* @throws BadMethodCallException When this ContainerBuilder is compiled
*/
public function set($id, $service)
{
$id = (string) $id;
if ($this->isCompiled() && (isset($this->definitions[$id]) && !$this->definitions[$id]->isSynthetic())) {
// setting a synthetic service on a compiled container is alright
throw new BadMethodCallException(sprintf('Setting service "%s" for an unknown or non-synthetic service definition on a compiled container is not allowed.', $id));
}
unset($this->definitions[$id], $this->aliasDefinitions[$id], $this->removedIds[$id]);
parent::set($id, $service);
}
/**
* Removes a service definition.
*
* @param string $id The service identifier
*/
public function removeDefinition($id)
{
if (isset($this->definitions[$id = (string) $id])) {
unset($this->definitions[$id]);
$this->removedIds[$id] = true;
}
}
/**
* Returns true if the given service is defined.
*
* @param string $id The service identifier
*
* @return bool true if the service is defined, false otherwise
*/
public function has($id)
{
$id = (string) $id;
return isset($this->definitions[$id]) || isset($this->aliasDefinitions[$id]) || parent::has($id);
}
/**
* Gets a service.
*
* @param string $id The service identifier
* @param int $invalidBehavior The behavior when the service does not exist
*
* @return object The associated service
*
* @throws InvalidArgumentException when no definitions are available
* @throws ServiceCircularReferenceException When a circular reference is detected
* @throws ServiceNotFoundException When the service is not defined
* @throws \Exception
*
* @see Reference
*/
public function get($id, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE)
{
if ($this->isCompiled() && isset($this->removedIds[$id = (string) $id]) && ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE >= $invalidBehavior) {
return parent::get($id);
}
return $this->doGet($id, $invalidBehavior);
}
private function doGet($id, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE, array &$inlineServices = null, $isConstructorArgument = false)
{
if (isset($inlineServices[$id])) {
return $inlineServices[$id];
}
if (null === $inlineServices) {
$isConstructorArgument = true;
$inlineServices = [];
}
try {
if (ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE === $invalidBehavior) {
return parent::get($id, $invalidBehavior);
}
if ($service = parent::get($id, ContainerInterface::NULL_ON_INVALID_REFERENCE)) {
return $service;
}
} catch (ServiceCircularReferenceException $e) {
if ($isConstructorArgument) {
throw $e;
}
}
if (!isset($this->definitions[$id]) && isset($this->aliasDefinitions[$id])) {
$alias = $this->aliasDefinitions[$id];
if ($alias->isDeprecated()) {
@trigger_error($alias->getDeprecationMessage($id), E_USER_DEPRECATED);
}
return $this->doGet((string) $alias, $invalidBehavior, $inlineServices, $isConstructorArgument);
}
try {
$definition = $this->getDefinition($id);
} catch (ServiceNotFoundException $e) {
if (ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE < $invalidBehavior) {
return;
}
throw $e;
}
if ($definition->hasErrors() && $e = $definition->getErrors()) {
throw new RuntimeException(reset($e));
}
if ($isConstructorArgument) {
$this->loading[$id] = true;
}
try {
return $this->createService($definition, $inlineServices, $isConstructorArgument, $id);
} finally {
if ($isConstructorArgument) {
unset($this->loading[$id]);
}
}
}
/**
* Merges a ContainerBuilder with the current ContainerBuilder configuration.
*
* Service definitions overrides the current defined ones.
*
* But for parameters, they are overridden by the current ones. It allows
* the parameters passed to the container constructor to have precedence
* over the loaded ones.
*
* $container = new ContainerBuilder(new ParameterBag(['foo' => 'bar']));
* $loader = new LoaderXXX($container);
* $loader->load('resource_name');
* $container->register('foo', 'stdClass');
*
* In the above example, even if the loaded resource defines a foo
* parameter, the value will still be 'bar' as defined in the ContainerBuilder
* constructor.
*
* @throws BadMethodCallException When this ContainerBuilder is compiled
*/
public function merge(self $container)
{
if ($this->isCompiled()) {
throw new BadMethodCallException('Cannot merge on a compiled container.');
}
$this->addDefinitions($container->getDefinitions());
$this->addAliases($container->getAliases());
$this->getParameterBag()->add($container->getParameterBag()->all());
if ($this->trackResources) {
foreach ($container->getResources() as $resource) {
$this->addResource($resource);
}
}
foreach ($this->extensions as $name => $extension) {
if (!isset($this->extensionConfigs[$name])) {
$this->extensionConfigs[$name] = [];
}
$this->extensionConfigs[$name] = array_merge($this->extensionConfigs[$name], $container->getExtensionConfig($name));
}
if ($this->getParameterBag() instanceof EnvPlaceholderParameterBag && $container->getParameterBag() instanceof EnvPlaceholderParameterBag) {
$envPlaceholders = $container->getParameterBag()->getEnvPlaceholders();
$this->getParameterBag()->mergeEnvPlaceholders($container->getParameterBag());
} else {
$envPlaceholders = [];
}
foreach ($container->envCounters as $env => $count) {
if (!$count && !isset($envPlaceholders[$env])) {
continue;
}
if (!isset($this->envCounters[$env])) {
$this->envCounters[$env] = $count;
} else {
$this->envCounters[$env] += $count;
}
}
foreach ($container->getAutoconfiguredInstanceof() as $interface => $childDefinition) {
if (isset($this->autoconfiguredInstanceof[$interface])) {
throw new InvalidArgumentException(sprintf('"%s" has already been autoconfigured and merge() does not support merging autoconfiguration for the same class/interface.', $interface));
}
$this->autoconfiguredInstanceof[$interface] = $childDefinition;
}
}
/**
* Returns the configuration array for the given extension.
*
* @param string $name The name of the extension
*
* @return array An array of configuration
*/
public function getExtensionConfig($name)
{
if (!isset($this->extensionConfigs[$name])) {
$this->extensionConfigs[$name] = [];
}
return $this->extensionConfigs[$name];
}
/**
* Prepends a config array to the configs of the given extension.
*
* @param string $name The name of the extension
* @param array $config The config to set
*/
public function prependExtensionConfig($name, array $config)
{
if (!isset($this->extensionConfigs[$name])) {
$this->extensionConfigs[$name] = [];
}
array_unshift($this->extensionConfigs[$name], $config);
}
/**
* Compiles the container.
*
* This method passes the container to compiler
* passes whose job is to manipulate and optimize
* the container.
*
* The main compiler passes roughly do four things:
*
* * The extension configurations are merged;
* * Parameter values are resolved;
* * The parameter bag is frozen;
* * Extension loading is disabled.
*
* @param bool $resolveEnvPlaceholders Whether %env()% parameters should be resolved using the current
* env vars or be replaced by uniquely identifiable placeholders.
* Set to "true" when you want to use the current ContainerBuilder
* directly, keep to "false" when the container is dumped instead.
*/
public function compile(bool $resolveEnvPlaceholders = false)
{
$compiler = $this->getCompiler();
if ($this->trackResources) {
foreach ($compiler->getPassConfig()->getPasses() as $pass) {
$this->addObjectResource($pass);
}
}
$bag = $this->getParameterBag();
if ($resolveEnvPlaceholders && $bag instanceof EnvPlaceholderParameterBag) {
$compiler->addPass(new ResolveEnvPlaceholdersPass(), PassConfig::TYPE_AFTER_REMOVING, -1000);
}
$compiler->compile($this);
foreach ($this->definitions as $id => $definition) {
if ($this->trackResources && $definition->isLazy()) {
$this->getReflectionClass($definition->getClass());
}
}
$this->extensionConfigs = [];
if ($bag instanceof EnvPlaceholderParameterBag) {
if ($resolveEnvPlaceholders) {
$this->parameterBag = new ParameterBag($this->resolveEnvPlaceholders($bag->all(), true));
}
$this->envPlaceholders = $bag->getEnvPlaceholders();
}
parent::compile();
foreach ($this->definitions + $this->aliasDefinitions as $id => $definition) {
if (!$definition->isPublic() || $definition->isPrivate()) {
$this->removedIds[$id] = true;
}
}
}
/**
* Gets all service ids.
*
* @return array An array of all defined service ids
*/
public function getServiceIds()
{
return array_unique(array_merge(array_keys($this->getDefinitions()), array_keys($this->aliasDefinitions), parent::getServiceIds()));
}
/**
* Gets removed service or alias ids.
*
* @return array
*/
public function getRemovedIds()
{
return $this->removedIds;
}
/**
* Adds the service aliases.
*/
public function addAliases(array $aliases)
{
foreach ($aliases as $alias => $id) {
$this->setAlias($alias, $id);
}
}
/**
* Sets the service aliases.
*/
public function setAliases(array $aliases)
{
$this->aliasDefinitions = [];
$this->addAliases($aliases);
}
/**
* Sets an alias for an existing service.
*
* @param string $alias The alias to create
* @param string|Alias $id The service to alias
*
* @return Alias
*
* @throws InvalidArgumentException if the id is not a string or an Alias
* @throws InvalidArgumentException if the alias is for itself
*/
public function setAlias($alias, $id)
{
$alias = (string) $alias;
if ('' === $alias || '\\' === $alias[-1] || \strlen($alias) !== strcspn($alias, "\0\r\n'")) {
throw new InvalidArgumentException(sprintf('Invalid alias id: "%s"', $alias));
}
if (\is_string($id)) {
$id = new Alias($id);
} elseif (!$id instanceof Alias) {
throw new InvalidArgumentException('$id must be a string, or an Alias object.');
}
if ($alias === (string) $id) {
throw new InvalidArgumentException(sprintf('An alias can not reference itself, got a circular reference on "%s".', $alias));
}
unset($this->definitions[$alias], $this->removedIds[$alias]);
return $this->aliasDefinitions[$alias] = $id;
}
/**
* Removes an alias.
*
* @param string $alias The alias to remove
*/
public function removeAlias($alias)
{
if (isset($this->aliasDefinitions[$alias = (string) $alias])) {
unset($this->aliasDefinitions[$alias]);
$this->removedIds[$alias] = true;
}
}
/**
* Returns true if an alias exists under the given identifier.
*
* @param string $id The service identifier
*
* @return bool true if the alias exists, false otherwise
*/
public function hasAlias($id)
{
return isset($this->aliasDefinitions[$id = (string) $id]);
}
/**
* Gets all defined aliases.
*
* @return Alias[] An array of aliases
*/
public function getAliases()
{
return $this->aliasDefinitions;
}
/**
* Gets an alias.
*
* @param string $id The service identifier
*
* @return Alias An Alias instance
*
* @throws InvalidArgumentException if the alias does not exist
*/
public function getAlias($id)
{
$id = (string) $id;
if (!isset($this->aliasDefinitions[$id])) {
throw new InvalidArgumentException(sprintf('The service alias "%s" does not exist.', $id));
}
return $this->aliasDefinitions[$id];
}
/**
* Registers a service definition.
*
* This methods allows for simple registration of service definition
* with a fluid interface.
*
* @param string $id The service identifier
* @param string $class|null The service class
*
* @return Definition A Definition instance
*/
public function register($id, $class = null)
{
return $this->setDefinition($id, new Definition($class));
}
/**
* Registers an autowired service definition.
*
* This method implements a shortcut for using setDefinition() with
* an autowired definition.
*
* @param string $id The service identifier
* @param string|null $class The service class
*
* @return Definition The created definition
*/
public function autowire($id, $class = null)
{
return $this->setDefinition($id, (new Definition($class))->setAutowired(true));
}
/**
* Adds the service definitions.
*
* @param Definition[] $definitions An array of service definitions
*/
public function addDefinitions(array $definitions)
{
foreach ($definitions as $id => $definition) {
$this->setDefinition($id, $definition);
}
}
/**
* Sets the service definitions.
*
* @param Definition[] $definitions An array of service definitions
*/
public function setDefinitions(array $definitions)
{
$this->definitions = [];
$this->addDefinitions($definitions);
}
/**
* Gets all service definitions.
*
* @return Definition[] An array of Definition instances
*/
public function getDefinitions()
{
return $this->definitions;
}
/**
* Sets a service definition.
*
* @param string $id The service identifier
* @param Definition $definition A Definition instance
*
* @return Definition the service definition
*
* @throws BadMethodCallException When this ContainerBuilder is compiled
*/
public function setDefinition($id, Definition $definition)
{
if ($this->isCompiled()) {
throw new BadMethodCallException('Adding definition to a compiled container is not allowed');
}
$id = (string) $id;
if ('' === $id || '\\' === $id[-1] || \strlen($id) !== strcspn($id, "\0\r\n'")) {
throw new InvalidArgumentException(sprintf('Invalid service id: "%s"', $id));
}
unset($this->aliasDefinitions[$id], $this->removedIds[$id]);
return $this->definitions[$id] = $definition;
}
/**
* Returns true if a service definition exists under the given identifier.
*
* @param string $id The service identifier
*
* @return bool true if the service definition exists, false otherwise
*/
public function hasDefinition($id)
{
return isset($this->definitions[(string) $id]);
}
/**
* Gets a service definition.
*
* @param string $id The service identifier
*
* @return Definition A Definition instance
*
* @throws ServiceNotFoundException if the service definition does not exist
*/
public function getDefinition($id)
{
$id = (string) $id;
if (!isset($this->definitions[$id])) {
throw new ServiceNotFoundException($id);
}
return $this->definitions[$id];
}
/**
* Gets a service definition by id or alias.
*
* The method "unaliases" recursively to return a Definition instance.
*
* @param string $id The service identifier or alias
*
* @return Definition A Definition instance
*
* @throws ServiceNotFoundException if the service definition does not exist
*/
public function findDefinition($id)
{
$id = (string) $id;
$seen = [];
while (isset($this->aliasDefinitions[$id])) {
$id = (string) $this->aliasDefinitions[$id];
if (isset($seen[$id])) {
$seen = array_values($seen);
$seen = \array_slice($seen, array_search($id, $seen));
$seen[] = $id;
throw new ServiceCircularReferenceException($id, $seen);
}
$seen[$id] = $id;
}
return $this->getDefinition($id);
}
/**
* Creates a service for a service definition.
*
* @param Definition $definition A service definition instance
* @param string $id The service identifier
* @param bool $tryProxy Whether to try proxying the service with a lazy proxy
*
* @return object The service described by the service definition
*
* @throws RuntimeException When the factory definition is incomplete
* @throws RuntimeException When the service is a synthetic service
* @throws InvalidArgumentException When configure callable is not callable
*/
private function createService(Definition $definition, array &$inlineServices, $isConstructorArgument = false, $id = null, $tryProxy = true)
{
if (null === $id && isset($inlineServices[$h = spl_object_hash($definition)])) {
return $inlineServices[$h];
}
if ($definition instanceof ChildDefinition) {
throw new RuntimeException(sprintf('Constructing service "%s" from a parent definition is not supported at build time.', $id));
}
if ($definition->isSynthetic()) {
throw new RuntimeException(sprintf('You have requested a synthetic service ("%s"). The DIC does not know how to construct this service.', $id));
}
if ($definition->isDeprecated()) {
@trigger_error($definition->getDeprecationMessage($id), E_USER_DEPRECATED);
}
if ($tryProxy && $definition->isLazy() && !$tryProxy = !($proxy = $this->proxyInstantiator) || $proxy instanceof RealServiceInstantiator) {
$proxy = $proxy->instantiateProxy(
$this,
$definition,
$id, function () use ($definition, &$inlineServices, $id) {
return $this->createService($definition, $inlineServices, true, $id, false);
}
);
$this->shareService($definition, $proxy, $id, $inlineServices);
return $proxy;
}
$parameterBag = $this->getParameterBag();
if (null !== $definition->getFile()) {
require_once $parameterBag->resolveValue($definition->getFile());
}
$arguments = $this->doResolveServices($parameterBag->unescapeValue($parameterBag->resolveValue($definition->getArguments())), $inlineServices, $isConstructorArgument);
if (null !== $factory = $definition->getFactory()) {
if (\is_array($factory)) {
$factory = [$this->doResolveServices($parameterBag->resolveValue($factory[0]), $inlineServices, $isConstructorArgument), $factory[1]];
} elseif (!\is_string($factory)) {
throw new RuntimeException(sprintf('Cannot create service "%s" because of invalid factory', $id));
}
}
if (null !== $id && $definition->isShared() && isset($this->services[$id]) && ($tryProxy || !$definition->isLazy())) {
return $this->services[$id];
}
if (null !== $factory) {
$service = $factory(...$arguments);
if (!$definition->isDeprecated() && \is_array($factory) && \is_string($factory[0])) {
$r = new \ReflectionClass($factory[0]);
if (0 < strpos($r->getDocComment(), "\n * @deprecated ")) {
@trigger_error(sprintf('The "%s" service relies on the deprecated "%s" factory class. It should either be deprecated or its factory upgraded.', $id, $r->name), E_USER_DEPRECATED);
}
}
} else {
$r = new \ReflectionClass($parameterBag->resolveValue($definition->getClass()));
$service = null === $r->getConstructor() ? $r->newInstance() : $r->newInstanceArgs($arguments);
if (!$definition->isDeprecated() && 0 < strpos($r->getDocComment(), "\n * @deprecated ")) {
@trigger_error(sprintf('The "%s" service relies on the deprecated "%s" class. It should either be deprecated or its implementation upgraded.', $id, $r->name), E_USER_DEPRECATED);
}
}
$lastWitherIndex = null;
foreach ($definition->getMethodCalls() as $k => $call) {
if ($call[2] ?? false) {
$lastWitherIndex = $k;
}
}
if (null === $lastWitherIndex && ($tryProxy || !$definition->isLazy())) {
// share only if proxying failed, or if not a proxy, and if no withers are found
$this->shareService($definition, $service, $id, $inlineServices);
}
$properties = $this->doResolveServices($parameterBag->unescapeValue($parameterBag->resolveValue($definition->getProperties())), $inlineServices);
foreach ($properties as $name => $value) {
$service->$name = $value;
}
foreach ($definition->getMethodCalls() as $k => $call) {
$service = $this->callMethod($service, $call, $inlineServices);
if ($lastWitherIndex === $k && ($tryProxy || !$definition->isLazy())) {
// share only if proxying failed, or if not a proxy, and this is the last wither
$this->shareService($definition, $service, $id, $inlineServices);
}
}
if ($callable = $definition->getConfigurator()) {
if (\is_array($callable)) {
$callable[0] = $parameterBag->resolveValue($callable[0]);
if ($callable[0] instanceof Reference) {
$callable[0] = $this->doGet((string) $callable[0], $callable[0]->getInvalidBehavior(), $inlineServices);
} elseif ($callable[0] instanceof Definition) {
$callable[0] = $this->createService($callable[0], $inlineServices);
}
}
if (!\is_callable($callable)) {
throw new InvalidArgumentException(sprintf('The configure callable for class "%s" is not a callable.', \get_class($service)));
}
$callable($service);
}
return $service;
}
/**
* Replaces service references by the real service instance and evaluates expressions.
*
* @param mixed $value A value
*
* @return mixed The same value with all service references replaced by
* the real service instances and all expressions evaluated
*/
public function resolveServices($value)
{
return $this->doResolveServices($value);
}
private function doResolveServices($value, array &$inlineServices = [], $isConstructorArgument = false)
{
if (\is_array($value)) {
foreach ($value as $k => $v) {
$value[$k] = $this->doResolveServices($v, $inlineServices, $isConstructorArgument);
}
} elseif ($value instanceof ServiceClosureArgument) {
$reference = $value->getValues()[0];
$value = function () use ($reference) {
return $this->resolveServices($reference);
};
} elseif ($value instanceof IteratorArgument) {
$value = new RewindableGenerator(function () use ($value) {
foreach ($value->getValues() as $k => $v) {
foreach (self::getServiceConditionals($v) as $s) {
if (!$this->has($s)) {
continue 2;
}
}
foreach (self::getInitializedConditionals($v) as $s) {
if (!$this->doGet($s, ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE)) {
continue 2;
}
}
yield $k => $this->resolveServices($v);
}
}, function () use ($value) {
$count = 0;
foreach ($value->getValues() as $v) {
foreach (self::getServiceConditionals($v) as $s) {
if (!$this->has($s)) {
continue 2;
}
}
foreach (self::getInitializedConditionals($v) as $s) {
if (!$this->doGet($s, ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE)) {
continue 2;
}
}
++$count;
}
return $count;
});
} elseif ($value instanceof ServiceLocatorArgument) {
$refs = $types = [];
foreach ($value->getValues() as $k => $v) {
if ($v) {
$refs[$k] = [$v];
$types[$k] = $v instanceof TypedReference ? $v->getType() : '?';
}
}
$value = new ServiceLocator(\Closure::fromCallable([$this, 'resolveServices']), $refs, $types);
} elseif ($value instanceof Reference) {
$value = $this->doGet((string) $value, $value->getInvalidBehavior(), $inlineServices, $isConstructorArgument);
} elseif ($value instanceof Definition) {
$value = $this->createService($value, $inlineServices, $isConstructorArgument);
} elseif ($value instanceof Parameter) {
$value = $this->getParameter((string) $value);
} elseif ($value instanceof Expression) {
$value = $this->getExpressionLanguage()->evaluate($value, ['container' => $this]);
}
return $value;
}
/**
* Returns service ids for a given tag.
*
* Example:
*
* $container->register('foo')->addTag('my.tag', ['hello' => 'world']);
*
* $serviceIds = $container->findTaggedServiceIds('my.tag');
* foreach ($serviceIds as $serviceId => $tags) {
* foreach ($tags as $tag) {
* echo $tag['hello'];
* }
* }
*
* @param string $name
* @param bool $throwOnAbstract
*
* @return array An array of tags with the tagged service as key, holding a list of attribute arrays
*/
public function findTaggedServiceIds($name, $throwOnAbstract = false)
{
$this->usedTags[] = $name;
$tags = [];
foreach ($this->getDefinitions() as $id => $definition) {
if ($definition->hasTag($name)) {
if ($throwOnAbstract && $definition->isAbstract()) {
throw new InvalidArgumentException(sprintf('The service "%s" tagged "%s" must not be abstract.', $id, $name));
}
$tags[$id] = $definition->getTag($name);
}
}
return $tags;
}
/**
* Returns all tags the defined services use.
*
* @return array An array of tags
*/
public function findTags()
{
$tags = [];
foreach ($this->getDefinitions() as $id => $definition) {
$tags = array_merge(array_keys($definition->getTags()), $tags);
}
return array_unique($tags);
}
/**
* Returns all tags not queried by findTaggedServiceIds.
*
* @return string[] An array of tags
*/
public function findUnusedTags()
{
return array_values(array_diff($this->findTags(), $this->usedTags));
}
public function addExpressionLanguageProvider(ExpressionFunctionProviderInterface $provider)
{
$this->expressionLanguageProviders[] = $provider;
}
/**
* @return ExpressionFunctionProviderInterface[]
*/
public function getExpressionLanguageProviders()
{
return $this->expressionLanguageProviders;
}
/**
* Returns a ChildDefinition that will be used for autoconfiguring the interface/class.
*
* @param string $interface The class or interface to match
*
* @return ChildDefinition
*/
public function registerForAutoconfiguration($interface)
{
if (!isset($this->autoconfiguredInstanceof[$interface])) {
$this->autoconfiguredInstanceof[$interface] = new ChildDefinition('');
}
return $this->autoconfiguredInstanceof[$interface];
}
/**
* Registers an autowiring alias that only binds to a specific argument name.
*
* The argument name is derived from $name if provided (from $id otherwise)
* using camel case: "foo.bar" or "foo_bar" creates an alias bound to
* "$fooBar"-named arguments with $type as type-hint. Such arguments will
* receive the service $id when autowiring is used.
*/
public function registerAliasForArgument(string $id, string $type, string $name = null): Alias
{
$name = lcfirst(str_replace(' ', '', ucwords(preg_replace('/[^a-zA-Z0-9\x7f-\xff]++/', ' ', $name ?? $id))));
if (!preg_match('/^[a-zA-Z_\x7f-\xff]/', $name)) {
throw new InvalidArgumentException(sprintf('Invalid argument name "%s" for service "%s": the first character must be a letter.', $name, $id));
}
return $this->setAlias($type.' $'.$name, $id);
}
/**
* Returns an array of ChildDefinition[] keyed by interface.
*
* @return ChildDefinition[]
*/
public function getAutoconfiguredInstanceof()
{
return $this->autoconfiguredInstanceof;
}
/**
* Resolves env parameter placeholders in a string or an array.
*
* @param mixed $value The value to resolve
* @param string|true|null $format A sprintf() format returning the replacement for each env var name or
* null to resolve back to the original "%env(VAR)%" format or
* true to resolve to the actual values of the referenced env vars
* @param array &$usedEnvs Env vars found while resolving are added to this array
*
* @return mixed The value with env parameters resolved if a string or an array is passed
*/
public function resolveEnvPlaceholders($value, $format = null, array &$usedEnvs = null)
{
if (null === $format) {
$format = '%%env(%s)%%';
}
$bag = $this->getParameterBag();
if (true === $format) {
$value = $bag->resolveValue($value);
}
if ($value instanceof Definition) {
$value = (array) $value;
}
if (\is_array($value)) {
$result = [];
foreach ($value as $k => $v) {
$result[\is_string($k) ? $this->resolveEnvPlaceholders($k, $format, $usedEnvs) : $k] = $this->resolveEnvPlaceholders($v, $format, $usedEnvs);
}
return $result;
}
if (!\is_string($value) || 38 > \strlen($value)) {
return $value;
}
$envPlaceholders = $bag instanceof EnvPlaceholderParameterBag ? $bag->getEnvPlaceholders() : $this->envPlaceholders;
$completed = false;
foreach ($envPlaceholders as $env => $placeholders) {
foreach ($placeholders as $placeholder) {
if (false !== stripos($value, $placeholder)) {
if (true === $format) {
$resolved = $bag->escapeValue($this->getEnv($env));
} else {
$resolved = sprintf($format, $env);
}
if ($placeholder === $value) {
$value = $resolved;
$completed = true;
} else {
if (!\is_string($resolved) && !is_numeric($resolved)) {
throw new RuntimeException(sprintf('A string value must be composed of strings and/or numbers, but found parameter "env(%s)" of type %s inside string value "%s".', $env, \gettype($resolved), $this->resolveEnvPlaceholders($value)));
}
$value = str_ireplace($placeholder, $resolved, $value);
}
$usedEnvs[$env] = $env;
$this->envCounters[$env] = isset($this->envCounters[$env]) ? 1 + $this->envCounters[$env] : 1;
if ($completed) {
break 2;
}
}
}
}
return $value;
}
/**
* Get statistics about env usage.
*
* @return int[] The number of time each env vars has been resolved
*/
public function getEnvCounters()
{
$bag = $this->getParameterBag();
$envPlaceholders = $bag instanceof EnvPlaceholderParameterBag ? $bag->getEnvPlaceholders() : $this->envPlaceholders;
foreach ($envPlaceholders as $env => $placeholders) {
if (!isset($this->envCounters[$env])) {
$this->envCounters[$env] = 0;
}
}
return $this->envCounters;
}
/**
* @final
*/
public function log(CompilerPassInterface $pass, string $message)
{
$this->getCompiler()->log($pass, $this->resolveEnvPlaceholders($message));
}
/**
* Gets removed binding ids.
*
* @return array
*
* @internal
*/
public function getRemovedBindingIds()
{
return $this->removedBindingIds;
}
/**
* Removes bindings for a service.
*
* @param string $id The service identifier
*
* @internal
*/
public function removeBindings($id)
{
if ($this->hasDefinition($id)) {
foreach ($this->getDefinition($id)->getBindings() as $key => $binding) {
list(, $bindingId) = $binding->getValues();
$this->removedBindingIds[(int) $bindingId] = true;
}
}
}
/**
* Returns the Service Conditionals.
*
* @param mixed $value An array of conditionals to return
*
* @return array An array of Service conditionals
*
* @internal
*/
public static function getServiceConditionals($value)
{
$services = [];
if (\is_array($value)) {
foreach ($value as $v) {
$services = array_unique(array_merge($services, self::getServiceConditionals($v)));
}
} elseif ($value instanceof Reference && ContainerInterface::IGNORE_ON_INVALID_REFERENCE === $value->getInvalidBehavior()) {
$services[] = (string) $value;
}
return $services;
}
/**
* Returns the initialized conditionals.
*
* @param mixed $value An array of conditionals to return
*
* @return array An array of uninitialized conditionals
*
* @internal
*/
public static function getInitializedConditionals($value)
{
$services = [];
if (\is_array($value)) {
foreach ($value as $v) {
$services = array_unique(array_merge($services, self::getInitializedConditionals($v)));
}
} elseif ($value instanceof Reference && ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE === $value->getInvalidBehavior()) {
$services[] = (string) $value;
}
return $services;
}
/**
* Computes a reasonably unique hash of a value.
*
* @param mixed $value A serializable value
*
* @return string
*/
public static function hash($value)
{
$hash = substr(base64_encode(hash('sha256', serialize($value), true)), 0, 7);
return str_replace(['/', '+'], ['.', '_'], $hash);
}
/**
* {@inheritdoc}
*/
protected function getEnv($name)
{
$value = parent::getEnv($name);
$bag = $this->getParameterBag();
if (!\is_string($value) || !$bag instanceof EnvPlaceholderParameterBag) {
return $value;
}
$envPlaceholders = $bag->getEnvPlaceholders();
if (isset($envPlaceholders[$name][$value])) {
$bag = new ParameterBag($bag->all());
return $bag->unescapeValue($bag->get("env($name)"));
}
foreach ($envPlaceholders as $env => $placeholders) {
if (isset($placeholders[$value])) {
return $this->getEnv($env);
}
}
$this->resolving["env($name)"] = true;
try {
return $bag->unescapeValue($this->resolveEnvPlaceholders($bag->escapeValue($value), true));
} finally {
unset($this->resolving["env($name)"]);
}
}
private function callMethod($service, $call, array &$inlineServices)
{
foreach (self::getServiceConditionals($call[1]) as $s) {
if (!$this->has($s)) {
return $service;
}
}
foreach (self::getInitializedConditionals($call[1]) as $s) {
if (!$this->doGet($s, ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE, $inlineServices)) {
return $service;
}
}
$result = $service->{$call[0]}(...$this->doResolveServices($this->getParameterBag()->unescapeValue($this->getParameterBag()->resolveValue($call[1])), $inlineServices));
return empty($call[2]) ? $service : $result;
}
/**
* Shares a given service in the container.
*
* @param Definition $definition
* @param object $service
* @param string|null $id
*/
private function shareService(Definition $definition, $service, $id, array &$inlineServices)
{
$inlineServices[null !== $id ? $id : spl_object_hash($definition)] = $service;
if (null !== $id && $definition->isShared()) {
$this->services[$id] = $service;
unset($this->loading[$id]);
}
}
private function getExpressionLanguage()
{
if (null === $this->expressionLanguage) {
if (!class_exists('Symfony\Component\ExpressionLanguage\ExpressionLanguage')) {
throw new LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
}
$this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders);
}
return $this->expressionLanguage;
}
private function inVendors($path)
{
if (null === $this->vendors) {
$resource = new ComposerResource();
$this->vendors = $resource->getVendors();
$this->addResource($resource);
}
$path = realpath($path) ?: $path;
foreach ($this->vendors as $vendor) {
if (0 === strpos($path, $vendor) && false !== strpbrk(substr($path, \strlen($vendor), 1), '/'.\DIRECTORY_SEPARATOR)) {
return true;
}
}
return false;
}
}
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