class PhpArrayContainer
Same name in other branches
- 9 core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php \Drupal\Component\DependencyInjection\PhpArrayContainer
- 8.9.x core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php \Drupal\Component\DependencyInjection\PhpArrayContainer
- 10 core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php \Drupal\Component\DependencyInjection\PhpArrayContainer
Provides a container optimized for Drupal's needs.
This container implementation is compatible with the default Symfony dependency injection container and similar to the Symfony ContainerBuilder class, but optimized for speed.
It is based on a human-readable PHP array container definition with a structure very similar to the YAML container definition.
Hierarchy
- class \Drupal\Component\DependencyInjection\Container implements \Drupal\Component\DependencyInjection\ContainerInterface, \Symfony\Contracts\Service\ResetInterface
- class \Drupal\Component\DependencyInjection\PhpArrayContainer extends \Drupal\Component\DependencyInjection\Container
Expanded class hierarchy of PhpArrayContainer
See also
\Drupal\Component\DependencyInjection\Container
\Drupal\Component\DependencyInjection\Dumper\PhpArrayDumper
\Drupal\Component\DependencyInjection\DependencySerializationTrait
Related topics
File
-
core/
lib/ Drupal/ Component/ DependencyInjection/ PhpArrayContainer.php, line 26
Namespace
Drupal\Component\DependencyInjectionView source
class PhpArrayContainer extends Container {
/**
* {@inheritdoc}
*/
public function __construct(array $container_definition = []) {
if (isset($container_definition['machine_format']) && $container_definition['machine_format'] === TRUE) {
throw new InvalidArgumentException('The machine-optimized format is not supported by this class. Use a human-readable format instead, e.g. as produced by \\Drupal\\Component\\DependencyInjection\\Dumper\\PhpArrayDumper.');
}
// Do not call the parent's constructor as it would bail on the
// machine-optimized format.
$this->aliases = $container_definition['aliases'] ?? [];
$this->parameters = $container_definition['parameters'] ?? [];
$this->serviceDefinitions = $container_definition['services'] ?? [];
$this->frozen = $container_definition['frozen'] ?? FALSE;
}
/**
* {@inheritdoc}
*/
protected function createService(array $definition, $id) {
// This method is a verbatim copy of
// \Drupal\Component\DependencyInjection\Container::createService
// except for the following difference:
// - There are no instanceof checks on \stdClass, which are used in the
// parent class to avoid resolving services and parameters when it is
// known from dumping that there is nothing to resolve.
if (isset($definition['synthetic']) && $definition['synthetic'] === TRUE) {
throw new RuntimeException(sprintf('You have requested a synthetic service ("%s"). The service container does not know how to construct this service. The service will need to be set before it is first used.', $id));
}
$arguments = [];
if (isset($definition['arguments'])) {
$arguments = $this->resolveServicesAndParameters($definition['arguments']);
}
if (isset($definition['file'])) {
$file = $this->frozen ? $definition['file'] : current($this->resolveServicesAndParameters([
$definition['file'],
]));
require_once $file;
}
if (isset($definition['factory'])) {
$factory = $definition['factory'];
if (is_array($factory)) {
$factory = $this->resolveServicesAndParameters([
$factory[0],
$factory[1],
]);
}
elseif (!is_string($factory)) {
throw new RuntimeException(sprintf('Cannot create service "%s" because of invalid factory', $id));
}
$service = call_user_func_array($factory, $arguments);
}
else {
$class = $this->frozen ? $definition['class'] : current($this->resolveServicesAndParameters([
$definition['class'],
]));
$service = new $class(...$arguments);
}
if (!isset($definition['shared']) || $definition['shared'] !== FALSE) {
$this->services[$id] = $service;
}
if (isset($definition['calls'])) {
foreach ($definition['calls'] as $call) {
$method = $call[0];
$arguments = [];
if (!empty($call[1])) {
$arguments = $call[1];
$arguments = $this->resolveServicesAndParameters($arguments);
}
call_user_func_array([
$service,
$method,
], $arguments);
}
}
if (isset($definition['properties'])) {
$definition['properties'] = $this->resolveServicesAndParameters($definition['properties']);
foreach ($definition['properties'] as $key => $value) {
$service->{$key} = $value;
}
}
if (isset($definition['configurator'])) {
$callable = $definition['configurator'];
if (is_array($callable)) {
$callable = $this->resolveServicesAndParameters($callable);
}
if (!is_callable($callable)) {
throw new InvalidArgumentException(sprintf('The configurator for class "%s" is not a callable.', get_class($service)));
}
call_user_func($callable, $service);
}
return $service;
}
/**
* {@inheritdoc}
*/
protected function resolveServicesAndParameters($arguments) {
// This method is different from the parent method only for the following
// cases:
// - A service is denoted by '@service' and not by a \stdClass object.
// - A parameter is denoted by '%parameter%' and not by a \stdClass object.
// - The depth of the tree representing the arguments is not known in
// advance, so it needs to be fully traversed recursively.
foreach ($arguments as $key => $argument) {
if ($argument instanceof \stdClass) {
$type = $argument->type;
// Private services are a special flavor: In case a private service is
// only used by one other service, the ContainerBuilder uses a
// Definition object as an argument, which does not have an ID set.
// Therefore the format uses a \stdClass object to store the definition
// and to be able to create the service on the fly.
//
// Note: When constructing a private service by hand, 'id' must be set.
//
// The PhpArrayDumper just uses the hash of the private service
// definition to generate a unique ID.
//
// @see \Drupal\Component\DependencyInjection\Dumper\OptimizedPhpArrayDumper::getPrivateServiceCall
if ($type == 'private_service') {
$id = $argument->id;
// Check if the private service already exists - in case it is shared.
if (!empty($argument->shared) && isset($this->privateServices[$id])) {
$arguments[$key] = $this->privateServices[$id];
continue;
}
// Create a private service from a service definition.
$arguments[$key] = $this->createService($argument->value, $id);
if (!empty($argument->shared)) {
$this->privateServices[$id] = $arguments[$key];
}
continue;
}
elseif ($type == 'service_closure') {
$arguments[$key] = function () use ($argument) {
return $this->get($argument->id, $argument->invalidBehavior);
};
continue;
}
elseif ($type == 'raw') {
$arguments[$key] = $argument->value;
continue;
}
elseif ($type == 'iterator') {
$services = $argument->value;
$arguments[$key] = new RewindableGenerator(function () use ($services) {
foreach ($services as $key => $service) {
(yield $key => $this->resolveServicesAndParameters([
$service,
])[0]);
}
}, count($services));
continue;
}
if ($type !== NULL) {
throw new InvalidArgumentException("Undefined type '{$type}' while resolving parameters and services.");
}
}
if (is_array($argument)) {
$arguments[$key] = $this->resolveServicesAndParameters($argument);
continue;
}
if (!is_string($argument)) {
continue;
}
// Resolve parameters.
if ($argument[0] === '%') {
$name = substr($argument, 1, -1);
if (!isset($this->parameters[$name])) {
$arguments[$key] = $this->getParameter($name);
// This can never be reached as getParameter() throws an Exception,
// because we already checked that the parameter is not set above.
}
$argument = $this->parameters[$name];
$arguments[$key] = $argument;
}
// Resolve services.
if ($argument[0] === '@') {
$id = substr($argument, 1);
$invalid_behavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;
if ($id[0] === '?') {
$id = substr($id, 1);
$invalid_behavior = ContainerInterface::NULL_ON_INVALID_REFERENCE;
}
if (isset($this->services[$id])) {
$arguments[$key] = $this->services[$id];
}
else {
$arguments[$key] = $this->get($id, $invalid_behavior);
}
}
}
return $arguments;
}
}
Members
Title Sort descending | Modifiers | Object type | Summary | Overriden Title | Overrides |
---|---|---|---|---|---|
Container::$aliases | protected | property | The aliases of the container. | ||
Container::$frozen | protected | property | Whether the container parameters can still be changed. | ||
Container::$loading | protected | property | The currently loading services. | ||
Container::$parameters | protected | property | The parameters of the container. | ||
Container::$privateServices | protected | property | The instantiated private services. | ||
Container::$serviceDefinitions | protected | property | The service definitions of the container. | ||
Container::$services | protected | property | The instantiated services. | ||
Container::get | public | function | 2 | ||
Container::getAlternatives | protected | function | Provides alternatives for a given array and key. | ||
Container::getParameter | public | function | |||
Container::getParameterAlternatives | protected | function | Provides alternatives in case a parameter was not found. | ||
Container::getServiceAlternatives | protected | function | Provides alternatives in case a service was not found. | ||
Container::getServiceIds | public | function | Gets all defined service IDs. | Overrides ContainerInterface::getServiceIds | |
Container::has | public | function | |||
Container::hasParameter | public | function | |||
Container::initialized | public | function | |||
Container::reset | public | function | Resets shared services from the container. | ||
Container::set | public | function | |||
Container::setParameter | public | function | |||
Container::__clone | private | function | Ensure that cloning doesn't work. | ||
PhpArrayContainer::createService | protected | function | Creates a service from a service definition. | Overrides Container::createService | |
PhpArrayContainer::resolveServicesAndParameters | protected | function | Resolves arguments that represent services or variables to the real values. | Overrides Container::resolveServicesAndParameters | |
PhpArrayContainer::__construct | public | function | Constructs a new Container instance. | Overrides Container::__construct |
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