namespace Symfony\Component\DependencyInjection;
-use Symfony\Component\DependencyInjection\Exception\InactiveScopeException;
+use Symfony\Component\DependencyInjection\Exception\EnvNotFoundException;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
-use Symfony\Component\DependencyInjection\Exception\LogicException;
-use Symfony\Component\DependencyInjection\Exception\RuntimeException;
use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
-use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
+use Symfony\Component\DependencyInjection\ParameterBag\EnvPlaceholderParameterBag;
use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
/**
*
* Parameter and service keys are case insensitive.
*
- * A service id can contain lowercased letters, digits, underscores, and dots.
- * Underscores are used to separate words, and dots to group services
- * under namespaces:
- *
- * <ul>
- * <li>request</li>
- * <li>mysql_session_storage</li>
- * <li>symfony.mysql_session_storage</li>
- * </ul>
- *
* A service can also be defined by creating a method named
* getXXXService(), where XXX is the camelized version of the id:
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
-class Container implements IntrospectableContainerInterface, ResettableContainerInterface
+class Container implements ResettableContainerInterface
{
/**
* @var ParameterBagInterface
protected $services = array();
protected $methodMap = array();
protected $aliases = array();
- protected $scopes = array();
- protected $scopeChildren = array();
- protected $scopedServices = array();
- protected $scopeStacks = array();
protected $loading = array();
+ /**
+ * @internal
+ */
+ protected $privates = array();
+
private $underscoreMap = array('_' => '', '.' => '_', '\\' => '_');
+ private $envCache = array();
/**
* @param ParameterBagInterface $parameterBag A ParameterBagInterface instance
*/
public function __construct(ParameterBagInterface $parameterBag = null)
{
- $this->parameterBag = $parameterBag ?: new ParameterBag();
+ $this->parameterBag = $parameterBag ?: new EnvPlaceholderParameterBag();
}
/**
* Setting a service to null resets the service: has() returns false and get()
* behaves in the same way as if the service was never created.
*
- * Note: The $scope parameter is deprecated since version 2.8 and will be removed in 3.0.
- *
* @param string $id The service identifier
* @param object $service The service instance
- * @param string $scope The scope of the service
- *
- * @throws RuntimeException When trying to set a service in an inactive scope
- * @throws InvalidArgumentException When trying to set a service in the prototype scope
*/
- public function set($id, $service, $scope = self::SCOPE_CONTAINER)
+ public function set($id, $service)
{
- if (!in_array($scope, array('container', 'request')) || ('request' === $scope && 'request' !== $id)) {
- @trigger_error('The concept of container scopes is deprecated since version 2.8 and will be removed in 3.0. Omit the third parameter.', E_USER_DEPRECATED);
- }
-
- if (self::SCOPE_PROTOTYPE === $scope) {
- throw new InvalidArgumentException(sprintf('You cannot set service "%s" of scope "prototype".', $id));
- }
-
$id = strtolower($id);
if ('service_container' === $id) {
- // BC: 'service_container' is no longer a self-reference but always
- // $this, so ignore this call.
- // @todo Throw InvalidArgumentException in next major release.
- return;
- }
- if (self::SCOPE_CONTAINER !== $scope) {
- if (!isset($this->scopedServices[$scope])) {
- throw new RuntimeException(sprintf('You cannot set service "%s" of inactive scope.', $id));
- }
-
- $this->scopedServices[$scope][$id] = $service;
+ throw new InvalidArgumentException('You cannot set service "service_container".');
}
if (isset($this->aliases[$id])) {
$this->services[$id] = $service;
- if (method_exists($this, $method = 'synchronize'.strtr($id, $this->underscoreMap).'Service')) {
- $this->$method();
+ if (null === $service) {
+ unset($this->services[$id]);
}
- if (null === $service) {
- if (self::SCOPE_CONTAINER !== $scope) {
- unset($this->scopedServices[$scope][$id]);
+ if (isset($this->privates[$id])) {
+ if (null === $service) {
+ @trigger_error(sprintf('Unsetting the "%s" private service is deprecated since Symfony 3.2 and won\'t be supported anymore in Symfony 4.0.', $id), E_USER_DEPRECATED);
+ unset($this->privates[$id]);
+ } else {
+ @trigger_error(sprintf('Setting the "%s" private service is deprecated since Symfony 3.2 and won\'t be supported anymore in Symfony 4.0. A new public service will be created instead.', $id), E_USER_DEPRECATED);
}
-
- unset($this->services[$id]);
}
}
public function has($id)
{
for ($i = 2;;) {
+ if (isset($this->privates[$id])) {
+ @trigger_error(sprintf('Checking for the existence of the "%s" private service is deprecated since Symfony 3.2 and won\'t be supported anymore in Symfony 4.0.', $id), E_USER_DEPRECATED);
+ }
+
if ('service_container' === $id
|| isset($this->aliases[$id])
|| isset($this->services[$id])
- || array_key_exists($id, $this->services)
) {
return true;
}
+
+ if (isset($this->methodMap[$id])) {
+ return true;
+ }
+
if (--$i && $id !== $lcId = strtolower($id)) {
$id = $lcId;
- } else {
- return method_exists($this, 'get'.strtr($id, $this->underscoreMap).'Service');
+ continue;
}
+
+ // We only check the convention-based factory in a compiled container (i.e. a child class other than a ContainerBuilder,
+ // and only when the dumper has not generated the method map (otherwise the method map is considered to be fully populated by the dumper)
+ if (!$this->methodMap && !$this instanceof ContainerBuilder && __CLASS__ !== static::class && method_exists($this, 'get'.strtr($id, $this->underscoreMap).'Service')) {
+ @trigger_error('Generating a dumped container without populating the method map is deprecated since 3.2 and will be unsupported in 4.0. Update your dumper to generate the method map.', E_USER_DEPRECATED);
+
+ return true;
+ }
+
+ return false;
}
}
// this method can be called thousands of times during a request, avoid
// calling strtolower() unless necessary.
for ($i = 2;;) {
- if ('service_container' === $id) {
- return $this;
+ if (isset($this->privates[$id])) {
+ @trigger_error(sprintf('Requesting the "%s" private service is deprecated since Symfony 3.2 and won\'t be supported anymore in Symfony 4.0.', $id), E_USER_DEPRECATED);
}
if (isset($this->aliases[$id])) {
$id = $this->aliases[$id];
}
+
// Re-use shared service instance if it exists.
- if (isset($this->services[$id]) || array_key_exists($id, $this->services)) {
+ if (isset($this->services[$id])) {
return $this->services[$id];
}
+ if ('service_container' === $id) {
+ return $this;
+ }
if (isset($this->loading[$id])) {
throw new ServiceCircularReferenceException($id, array_keys($this->loading));
} elseif (--$i && $id !== $lcId = strtolower($id)) {
$id = $lcId;
continue;
- } elseif (method_exists($this, $method = 'get'.strtr($id, $this->underscoreMap).'Service')) {
+ } elseif (!$this->methodMap && !$this instanceof ContainerBuilder && __CLASS__ !== static::class && method_exists($this, $method = 'get'.strtr($id, $this->underscoreMap).'Service')) {
+ // We only check the convention-based factory in a compiled container (i.e. a child class other than a ContainerBuilder,
+ // and only when the dumper has not generated the method map (otherwise the method map is considered to be fully populated by the dumper)
+ @trigger_error('Generating a dumped container without populating the method map is deprecated since 3.2 and will be unsupported in 4.0. Update your dumper to generate the method map.', E_USER_DEPRECATED);
// $method is set to the right value, proceed
} else {
if (self::EXCEPTION_ON_INVALID_REFERENCE === $invalidBehavior) {
try {
$service = $this->$method();
} catch (\Exception $e) {
- unset($this->loading[$id]);
unset($this->services[$id]);
- if ($e instanceof InactiveScopeException && self::EXCEPTION_ON_INVALID_REFERENCE !== $invalidBehavior) {
- return;
- }
-
throw $e;
- } catch (\Throwable $e) {
+ } finally {
unset($this->loading[$id]);
- unset($this->services[$id]);
-
- throw $e;
}
- unset($this->loading[$id]);
-
return $service;
}
}
{
$id = strtolower($id);
- if ('service_container' === $id) {
- // BC: 'service_container' was a synthetic service previously.
- // @todo Change to false in next major release.
- return true;
- }
-
if (isset($this->aliases[$id])) {
$id = $this->aliases[$id];
}
- return isset($this->services[$id]) || array_key_exists($id, $this->services);
+ if ('service_container' === $id) {
+ return false;
+ }
+
+ return isset($this->services[$id]);
}
/**
*/
public function reset()
{
- if (!empty($this->scopedServices)) {
- throw new LogicException('Resetting the container is not allowed when a scope is active.');
- }
-
$this->services = array();
}
public function getServiceIds()
{
$ids = array();
- foreach (get_class_methods($this) as $method) {
- if (preg_match('/^get(.+)Service$/', $method, $match)) {
- $ids[] = self::underscore($match[1]);
+
+ if (!$this->methodMap && !$this instanceof ContainerBuilder && __CLASS__ !== static::class) {
+ // We only check the convention-based factory in a compiled container (i.e. a child class other than a ContainerBuilder,
+ // and only when the dumper has not generated the method map (otherwise the method map is considered to be fully populated by the dumper)
+ @trigger_error('Generating a dumped container without populating the method map is deprecated since 3.2 and will be unsupported in 4.0. Update your dumper to generate the method map.', E_USER_DEPRECATED);
+
+ foreach (get_class_methods($this) as $method) {
+ if (preg_match('/^get(.+)Service$/', $method, $match)) {
+ $ids[] = self::underscore($match[1]);
+ }
}
}
$ids[] = 'service_container';
- return array_unique(array_merge($ids, array_keys($this->services)));
+ return array_unique(array_merge($ids, array_keys($this->methodMap), array_keys($this->services)));
}
/**
- * This is called when you enter a scope.
- *
- * @param string $name
+ * Camelizes a string.
*
- * @throws RuntimeException When the parent scope is inactive
- * @throws InvalidArgumentException When the scope does not exist
+ * @param string $id A string to camelize
*
- * @deprecated since version 2.8, to be removed in 3.0.
+ * @return string The camelized string
*/
- public function enterScope($name)
+ public static function camelize($id)
{
- if ('request' !== $name) {
- @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
- }
-
- if (!isset($this->scopes[$name])) {
- throw new InvalidArgumentException(sprintf('The scope "%s" does not exist.', $name));
- }
-
- if (self::SCOPE_CONTAINER !== $this->scopes[$name] && !isset($this->scopedServices[$this->scopes[$name]])) {
- throw new RuntimeException(sprintf('The parent scope "%s" must be active when entering this scope.', $this->scopes[$name]));
- }
-
- // check if a scope of this name is already active, if so we need to
- // remove all services of this scope, and those of any of its child
- // scopes from the global services map
- if (isset($this->scopedServices[$name])) {
- $services = array($this->services, $name => $this->scopedServices[$name]);
- unset($this->scopedServices[$name]);
-
- foreach ($this->scopeChildren[$name] as $child) {
- if (isset($this->scopedServices[$child])) {
- $services[$child] = $this->scopedServices[$child];
- unset($this->scopedServices[$child]);
- }
- }
-
- // update global map
- $this->services = call_user_func_array('array_diff_key', $services);
- array_shift($services);
-
- // add stack entry for this scope so we can restore the removed services later
- if (!isset($this->scopeStacks[$name])) {
- $this->scopeStacks[$name] = new \SplStack();
- }
- $this->scopeStacks[$name]->push($services);
- }
-
- $this->scopedServices[$name] = array();
+ return strtr(ucwords(strtr($id, array('_' => ' ', '.' => '_ ', '\\' => '_ '))), array(' ' => ''));
}
/**
- * This is called to leave the current scope, and move back to the parent
- * scope.
- *
- * @param string $name The name of the scope to leave
+ * A string to underscore.
*
- * @throws InvalidArgumentException if the scope is not active
+ * @param string $id The string to underscore
*
- * @deprecated since version 2.8, to be removed in 3.0.
+ * @return string The underscored string
*/
- public function leaveScope($name)
+ public static function underscore($id)
{
- if ('request' !== $name) {
- @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
- }
-
- if (!isset($this->scopedServices[$name])) {
- throw new InvalidArgumentException(sprintf('The scope "%s" is not active.', $name));
- }
-
- // remove all services of this scope, or any of its child scopes from
- // the global service map
- $services = array($this->services, $this->scopedServices[$name]);
- unset($this->scopedServices[$name]);
-
- foreach ($this->scopeChildren[$name] as $child) {
- if (isset($this->scopedServices[$child])) {
- $services[] = $this->scopedServices[$child];
- unset($this->scopedServices[$child]);
- }
- }
-
- // update global map
- $this->services = call_user_func_array('array_diff_key', $services);
-
- // check if we need to restore services of a previous scope of this type
- if (isset($this->scopeStacks[$name]) && count($this->scopeStacks[$name]) > 0) {
- $services = $this->scopeStacks[$name]->pop();
- $this->scopedServices += $services;
-
- if ($this->scopeStacks[$name]->isEmpty()) {
- unset($this->scopeStacks[$name]);
- }
-
- foreach ($services as $array) {
- foreach ($array as $id => $service) {
- $this->set($id, $service, $name);
- }
- }
- }
+ return strtolower(preg_replace(array('/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'), array('\\1_\\2', '\\1_\\2'), str_replace('_', '.', $id)));
}
/**
- * Adds a scope to the container.
+ * Fetches a variable from the environment.
*
- * @param ScopeInterface $scope
+ * @param string The name of the environment variable
*
- * @throws InvalidArgumentException
+ * @return scalar The value to use for the provided environment variable name
*
- * @deprecated since version 2.8, to be removed in 3.0.
+ * @throws EnvNotFoundException When the environment variable is not found and has no default value
*/
- public function addScope(ScopeInterface $scope)
+ protected function getEnv($name)
{
- $name = $scope->getName();
- $parentScope = $scope->getParentName();
-
- if ('request' !== $name) {
- @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
- }
- if (self::SCOPE_CONTAINER === $name || self::SCOPE_PROTOTYPE === $name) {
- throw new InvalidArgumentException(sprintf('The scope "%s" is reserved.', $name));
+ if (isset($this->envCache[$name]) || array_key_exists($name, $this->envCache)) {
+ return $this->envCache[$name];
}
- if (isset($this->scopes[$name])) {
- throw new InvalidArgumentException(sprintf('A scope with name "%s" already exists.', $name));
+ if (isset($_ENV[$name])) {
+ return $this->envCache[$name] = $_ENV[$name];
}
- if (self::SCOPE_CONTAINER !== $parentScope && !isset($this->scopes[$parentScope])) {
- throw new InvalidArgumentException(sprintf('The parent scope "%s" does not exist, or is invalid.', $parentScope));
+ if (false !== $env = getenv($name)) {
+ return $this->envCache[$name] = $env;
}
-
- $this->scopes[$name] = $parentScope;
- $this->scopeChildren[$name] = array();
-
- // normalize the child relations
- while ($parentScope !== self::SCOPE_CONTAINER) {
- $this->scopeChildren[$parentScope][] = $name;
- $parentScope = $this->scopes[$parentScope];
+ if (!$this->hasParameter("env($name)")) {
+ throw new EnvNotFoundException($name);
}
- }
- /**
- * Returns whether this container has a certain scope.
- *
- * @param string $name The name of the scope
- *
- * @return bool
- *
- * @deprecated since version 2.8, to be removed in 3.0.
- */
- public function hasScope($name)
- {
- if ('request' !== $name) {
- @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
- }
-
- return isset($this->scopes[$name]);
- }
-
- /**
- * Returns whether this scope is currently active.
- *
- * This does not actually check if the passed scope actually exists.
- *
- * @param string $name
- *
- * @return bool
- *
- * @deprecated since version 2.8, to be removed in 3.0.
- */
- public function isScopeActive($name)
- {
- @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
-
- return isset($this->scopedServices[$name]);
- }
-
- /**
- * Camelizes a string.
- *
- * @param string $id A string to camelize
- *
- * @return string The camelized string
- */
- public static function camelize($id)
- {
- return strtr(ucwords(strtr($id, array('_' => ' ', '.' => '_ ', '\\' => '_ '))), array(' ' => ''));
- }
-
- /**
- * A string to underscore.
- *
- * @param string $id The string to underscore
- *
- * @return string The underscored string
- */
- public static function underscore($id)
- {
- return strtolower(preg_replace(array('/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'), array('\\1_\\2', '\\1_\\2'), str_replace('_', '.', $id)));
+ return $this->envCache[$name] = $this->getParameter("env($name)");
}
private function __clone()
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