--- /dev/null
+<?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\Dumper;
+
+use Symfony\Component\DependencyInjection\Variable;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Container;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\Parameter;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException;
+use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface as ProxyDumper;
+use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\NullDumper;
+use Symfony\Component\DependencyInjection\ExpressionLanguage;
+use Symfony\Component\ExpressionLanguage\Expression;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+use Symfony\Component\HttpKernel\Kernel;
+
+/**
+ * PhpDumper dumps a service container as a PHP class.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class PhpDumper extends Dumper
+{
+ /**
+ * Characters that might appear in the generated variable name as first character.
+ *
+ * @var string
+ */
+ const FIRST_CHARS = 'abcdefghijklmnopqrstuvwxyz';
+
+ /**
+ * Characters that might appear in the generated variable name as any but the first character.
+ *
+ * @var string
+ */
+ const NON_FIRST_CHARS = 'abcdefghijklmnopqrstuvwxyz0123456789_';
+
+ private $inlinedDefinitions;
+ private $definitionVariables;
+ private $referenceVariables;
+ private $variableCount;
+ private $reservedVariables = array('instance', 'class');
+ private $expressionLanguage;
+ private $targetDirRegex;
+ private $targetDirMaxMatches;
+ private $docStar;
+
+ /**
+ * @var ExpressionFunctionProviderInterface[]
+ */
+ private $expressionLanguageProviders = array();
+
+ /**
+ * @var \Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface
+ */
+ private $proxyDumper;
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct(ContainerBuilder $container)
+ {
+ parent::__construct($container);
+
+ $this->inlinedDefinitions = new \SplObjectStorage();
+ }
+
+ /**
+ * Sets the dumper to be used when dumping proxies in the generated container.
+ *
+ * @param ProxyDumper $proxyDumper
+ */
+ public function setProxyDumper(ProxyDumper $proxyDumper)
+ {
+ $this->proxyDumper = $proxyDumper;
+ }
+
+ /**
+ * Dumps the service container as a PHP class.
+ *
+ * Available options:
+ *
+ * * class: The class name
+ * * base_class: The base class name
+ * * namespace: The class namespace
+ *
+ * @param array $options An array of options
+ *
+ * @return string A PHP class representing of the service container
+ */
+ public function dump(array $options = array())
+ {
+ $this->targetDirRegex = null;
+ $options = array_merge(array(
+ 'class' => 'ProjectServiceContainer',
+ 'base_class' => 'Container',
+ 'namespace' => '',
+ 'debug' => true,
+ ), $options);
+ $this->docStar = $options['debug'] ? '*' : '';
+
+ if (!empty($options['file']) && is_dir($dir = dirname($options['file']))) {
+ // Build a regexp where the first root dirs are mandatory,
+ // but every other sub-dir is optional up to the full path in $dir
+ // Mandate at least 2 root dirs and not more that 5 optional dirs.
+
+ $dir = explode(DIRECTORY_SEPARATOR, realpath($dir));
+ $i = count($dir);
+
+ if (3 <= $i) {
+ $regex = '';
+ $lastOptionalDir = $i > 8 ? $i - 5 : 3;
+ $this->targetDirMaxMatches = $i - $lastOptionalDir;
+
+ while (--$i >= $lastOptionalDir) {
+ $regex = sprintf('(%s%s)?', preg_quote(DIRECTORY_SEPARATOR.$dir[$i], '#'), $regex);
+ }
+
+ do {
+ $regex = preg_quote(DIRECTORY_SEPARATOR.$dir[$i], '#').$regex;
+ } while (0 < --$i);
+
+ $this->targetDirRegex = '#'.preg_quote($dir[0], '#').$regex.'#';
+ }
+ }
+
+ $code = $this->startClass($options['class'], $options['base_class'], $options['namespace']);
+
+ if ($this->container->isFrozen()) {
+ $code .= $this->addFrozenConstructor();
+ $code .= $this->addFrozenCompile();
+ $code .= $this->addIsFrozenMethod();
+ } else {
+ $code .= $this->addConstructor();
+ }
+
+ $code .=
+ $this->addServices().
+ $this->addDefaultParametersMethod().
+ $this->endClass().
+ $this->addProxyClasses()
+ ;
+ $this->targetDirRegex = null;
+
+ return $code;
+ }
+
+ /**
+ * Retrieves the currently set proxy dumper or instantiates one.
+ *
+ * @return ProxyDumper
+ */
+ private function getProxyDumper()
+ {
+ if (!$this->proxyDumper) {
+ $this->proxyDumper = new NullDumper();
+ }
+
+ return $this->proxyDumper;
+ }
+
+ /**
+ * Generates Service local temp variables.
+ *
+ * @param string $cId
+ * @param string $definition
+ *
+ * @return string
+ */
+ private function addServiceLocalTempVariables($cId, $definition)
+ {
+ static $template = " \$%s = %s;\n";
+
+ $localDefinitions = array_merge(
+ array($definition),
+ $this->getInlinedDefinitions($definition)
+ );
+
+ $calls = $behavior = array();
+ foreach ($localDefinitions as $iDefinition) {
+ $this->getServiceCallsFromArguments($iDefinition->getArguments(), $calls, $behavior);
+ $this->getServiceCallsFromArguments($iDefinition->getMethodCalls(), $calls, $behavior);
+ $this->getServiceCallsFromArguments($iDefinition->getProperties(), $calls, $behavior);
+ $this->getServiceCallsFromArguments(array($iDefinition->getConfigurator()), $calls, $behavior);
+ $this->getServiceCallsFromArguments(array($iDefinition->getFactory()), $calls, $behavior);
+ }
+
+ $code = '';
+ foreach ($calls as $id => $callCount) {
+ if ('service_container' === $id || $id === $cId) {
+ continue;
+ }
+
+ if ($callCount > 1) {
+ $name = $this->getNextVariableName();
+ $this->referenceVariables[$id] = new Variable($name);
+
+ if (ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE === $behavior[$id]) {
+ $code .= sprintf($template, $name, $this->getServiceCall($id));
+ } else {
+ $code .= sprintf($template, $name, $this->getServiceCall($id, new Reference($id, ContainerInterface::NULL_ON_INVALID_REFERENCE)));
+ }
+ }
+ }
+
+ if ('' !== $code) {
+ $code .= "\n";
+ }
+
+ return $code;
+ }
+
+ /**
+ * Generates code for the proxies to be attached after the container class.
+ *
+ * @return string
+ */
+ private function addProxyClasses()
+ {
+ /* @var $definitions Definition[] */
+ $definitions = array_filter(
+ $this->container->getDefinitions(),
+ array($this->getProxyDumper(), 'isProxyCandidate')
+ );
+ $code = '';
+ $strip = '' === $this->docStar && method_exists('Symfony\Component\HttpKernel\Kernel', 'stripComments');
+
+ foreach ($definitions as $definition) {
+ $proxyCode = "\n".$this->getProxyDumper()->getProxyCode($definition);
+ if ($strip) {
+ $proxyCode = "<?php\n".$proxyCode;
+ $proxyCode = substr(Kernel::stripComments($proxyCode), 5);
+ }
+ $code .= $proxyCode;
+ }
+
+ return $code;
+ }
+
+ /**
+ * Generates the require_once statement for service includes.
+ *
+ * @param string $id The service id
+ * @param Definition $definition
+ *
+ * @return string
+ */
+ private function addServiceInclude($id, $definition)
+ {
+ $template = " require_once %s;\n";
+ $code = '';
+
+ if (null !== $file = $definition->getFile()) {
+ $code .= sprintf($template, $this->dumpValue($file));
+ }
+
+ foreach ($this->getInlinedDefinitions($definition) as $definition) {
+ if (null !== $file = $definition->getFile()) {
+ $code .= sprintf($template, $this->dumpValue($file));
+ }
+ }
+
+ if ('' !== $code) {
+ $code .= "\n";
+ }
+
+ return $code;
+ }
+
+ /**
+ * Generates the inline definition of a service.
+ *
+ * @param string $id
+ * @param Definition $definition
+ *
+ * @return string
+ *
+ * @throws RuntimeException When the factory definition is incomplete
+ * @throws ServiceCircularReferenceException When a circular reference is detected
+ */
+ private function addServiceInlinedDefinitions($id, $definition)
+ {
+ $code = '';
+ $variableMap = $this->definitionVariables;
+ $nbOccurrences = new \SplObjectStorage();
+ $processed = new \SplObjectStorage();
+ $inlinedDefinitions = $this->getInlinedDefinitions($definition);
+
+ foreach ($inlinedDefinitions as $definition) {
+ if (false === $nbOccurrences->contains($definition)) {
+ $nbOccurrences->offsetSet($definition, 1);
+ } else {
+ $i = $nbOccurrences->offsetGet($definition);
+ $nbOccurrences->offsetSet($definition, $i + 1);
+ }
+ }
+
+ foreach ($inlinedDefinitions as $sDefinition) {
+ if ($processed->contains($sDefinition)) {
+ continue;
+ }
+ $processed->offsetSet($sDefinition);
+
+ $class = $this->dumpValue($sDefinition->getClass());
+ if ($nbOccurrences->offsetGet($sDefinition) > 1 || $sDefinition->getMethodCalls() || $sDefinition->getProperties() || null !== $sDefinition->getConfigurator() || false !== strpos($class, '$')) {
+ $name = $this->getNextVariableName();
+ $variableMap->offsetSet($sDefinition, new Variable($name));
+
+ // a construct like:
+ // $a = new ServiceA(ServiceB $b); $b = new ServiceB(ServiceA $a);
+ // this is an indication for a wrong implementation, you can circumvent this problem
+ // by setting up your service structure like this:
+ // $b = new ServiceB();
+ // $a = new ServiceA(ServiceB $b);
+ // $b->setServiceA(ServiceA $a);
+ if ($this->hasReference($id, $sDefinition->getArguments())) {
+ throw new ServiceCircularReferenceException($id, array($id));
+ }
+
+ $code .= $this->addNewInstance($id, $sDefinition, '$'.$name, ' = ');
+
+ if (!$this->hasReference($id, $sDefinition->getMethodCalls(), true) && !$this->hasReference($id, $sDefinition->getProperties(), true)) {
+ $code .= $this->addServiceProperties(null, $sDefinition, $name);
+ $code .= $this->addServiceMethodCalls(null, $sDefinition, $name);
+ $code .= $this->addServiceConfigurator(null, $sDefinition, $name);
+ }
+
+ $code .= "\n";
+ }
+ }
+
+ return $code;
+ }
+
+ /**
+ * Adds the service return statement.
+ *
+ * @param string $id Service id
+ * @param Definition $definition
+ *
+ * @return string
+ */
+ private function addServiceReturn($id, $definition)
+ {
+ if ($this->isSimpleInstance($id, $definition)) {
+ return " }\n";
+ }
+
+ return "\n return \$instance;\n }\n";
+ }
+
+ /**
+ * Generates the service instance.
+ *
+ * @param string $id
+ * @param Definition $definition
+ *
+ * @return string
+ *
+ * @throws InvalidArgumentException
+ * @throws RuntimeException
+ */
+ private function addServiceInstance($id, Definition $definition)
+ {
+ $class = $definition->getClass();
+
+ if ('\\' === substr($class, 0, 1)) {
+ $class = substr($class, 1);
+ }
+
+ $class = $this->dumpValue($class);
+
+ if (0 === strpos($class, "'") && !preg_match('/^\'[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*(\\\{2}[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)*\'$/', $class)) {
+ throw new InvalidArgumentException(sprintf('"%s" is not a valid class name for the "%s" service.', $class, $id));
+ }
+
+ $simple = $this->isSimpleInstance($id, $definition);
+ $isProxyCandidate = $this->getProxyDumper()->isProxyCandidate($definition);
+ $instantiation = '';
+
+ if (!$isProxyCandidate && $definition->isShared() && ContainerInterface::SCOPE_CONTAINER === $definition->getScope(false)) {
+ $instantiation = "\$this->services['$id'] = ".($simple ? '' : '$instance');
+ } elseif (!$isProxyCandidate && $definition->isShared() && ContainerInterface::SCOPE_PROTOTYPE !== $scope = $definition->getScope(false)) {
+ $instantiation = "\$this->services['$id'] = \$this->scopedServices['$scope']['$id'] = ".($simple ? '' : '$instance');
+ } elseif (!$simple) {
+ $instantiation = '$instance';
+ }
+
+ $return = '';
+ if ($simple) {
+ $return = 'return ';
+ } else {
+ $instantiation .= ' = ';
+ }
+
+ $code = $this->addNewInstance($id, $definition, $return, $instantiation);
+
+ if (!$simple) {
+ $code .= "\n";
+ }
+
+ return $code;
+ }
+
+ /**
+ * Checks if the definition is a simple instance.
+ *
+ * @param string $id
+ * @param Definition $definition
+ *
+ * @return bool
+ */
+ private function isSimpleInstance($id, Definition $definition)
+ {
+ foreach (array_merge(array($definition), $this->getInlinedDefinitions($definition)) as $sDefinition) {
+ if ($definition !== $sDefinition && !$this->hasReference($id, $sDefinition->getMethodCalls())) {
+ continue;
+ }
+
+ if ($sDefinition->getMethodCalls() || $sDefinition->getProperties() || $sDefinition->getConfigurator()) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ /**
+ * Adds method calls to a service definition.
+ *
+ * @param string $id
+ * @param Definition $definition
+ * @param string $variableName
+ *
+ * @return string
+ */
+ private function addServiceMethodCalls($id, Definition $definition, $variableName = 'instance')
+ {
+ $calls = '';
+ foreach ($definition->getMethodCalls() as $call) {
+ $arguments = array();
+ foreach ($call[1] as $value) {
+ $arguments[] = $this->dumpValue($value);
+ }
+
+ $calls .= $this->wrapServiceConditionals($call[1], sprintf(" \$%s->%s(%s);\n", $variableName, $call[0], implode(', ', $arguments)));
+ }
+
+ return $calls;
+ }
+
+ private function addServiceProperties($id, Definition $definition, $variableName = 'instance')
+ {
+ $code = '';
+ foreach ($definition->getProperties() as $name => $value) {
+ $code .= sprintf(" \$%s->%s = %s;\n", $variableName, $name, $this->dumpValue($value));
+ }
+
+ return $code;
+ }
+
+ /**
+ * Generates the inline definition setup.
+ *
+ * @param string $id
+ * @param Definition $definition
+ *
+ * @return string
+ *
+ * @throws ServiceCircularReferenceException when the container contains a circular reference
+ */
+ private function addServiceInlinedDefinitionsSetup($id, Definition $definition)
+ {
+ $this->referenceVariables[$id] = new Variable('instance');
+
+ $code = '';
+ $processed = new \SplObjectStorage();
+ foreach ($this->getInlinedDefinitions($definition) as $iDefinition) {
+ if ($processed->contains($iDefinition)) {
+ continue;
+ }
+ $processed->offsetSet($iDefinition);
+
+ if (!$this->hasReference($id, $iDefinition->getMethodCalls(), true) && !$this->hasReference($id, $iDefinition->getProperties(), true)) {
+ continue;
+ }
+
+ // if the instance is simple, the return statement has already been generated
+ // so, the only possible way to get there is because of a circular reference
+ if ($this->isSimpleInstance($id, $definition)) {
+ throw new ServiceCircularReferenceException($id, array($id));
+ }
+
+ $name = (string) $this->definitionVariables->offsetGet($iDefinition);
+ $code .= $this->addServiceProperties(null, $iDefinition, $name);
+ $code .= $this->addServiceMethodCalls(null, $iDefinition, $name);
+ $code .= $this->addServiceConfigurator(null, $iDefinition, $name);
+ }
+
+ if ('' !== $code) {
+ $code .= "\n";
+ }
+
+ return $code;
+ }
+
+ /**
+ * Adds configurator definition.
+ *
+ * @param string $id
+ * @param Definition $definition
+ * @param string $variableName
+ *
+ * @return string
+ */
+ private function addServiceConfigurator($id, Definition $definition, $variableName = 'instance')
+ {
+ if (!$callable = $definition->getConfigurator()) {
+ return '';
+ }
+
+ if (is_array($callable)) {
+ if ($callable[0] instanceof Reference
+ || ($callable[0] instanceof Definition && $this->definitionVariables->contains($callable[0]))) {
+ return sprintf(" %s->%s(\$%s);\n", $this->dumpValue($callable[0]), $callable[1], $variableName);
+ }
+
+ $class = $this->dumpValue($callable[0]);
+ // If the class is a string we can optimize call_user_func away
+ if (strpos($class, "'") === 0) {
+ return sprintf(" %s::%s(\$%s);\n", $this->dumpLiteralClass($class), $callable[1], $variableName);
+ }
+
+ return sprintf(" call_user_func(array(%s, '%s'), \$%s);\n", $this->dumpValue($callable[0]), $callable[1], $variableName);
+ }
+
+ return sprintf(" %s(\$%s);\n", $callable, $variableName);
+ }
+
+ /**
+ * Adds a service.
+ *
+ * @param string $id
+ * @param Definition $definition
+ *
+ * @return string
+ */
+ private function addService($id, Definition $definition)
+ {
+ $this->definitionVariables = new \SplObjectStorage();
+ $this->referenceVariables = array();
+ $this->variableCount = 0;
+
+ $return = array();
+
+ if ($definition->isSynthetic()) {
+ $return[] = '@throws RuntimeException always since this service is expected to be injected dynamically';
+ } elseif ($class = $definition->getClass()) {
+ $return[] = sprintf('@return %s A %s instance', 0 === strpos($class, '%') ? 'object' : '\\'.ltrim($class, '\\'), ltrim($class, '\\'));
+ } elseif ($definition->getFactory()) {
+ $factory = $definition->getFactory();
+ if (is_string($factory)) {
+ $return[] = sprintf('@return object An instance returned by %s()', $factory);
+ } elseif (is_array($factory) && (is_string($factory[0]) || $factory[0] instanceof Definition || $factory[0] instanceof Reference)) {
+ if (is_string($factory[0]) || $factory[0] instanceof Reference) {
+ $return[] = sprintf('@return object An instance returned by %s::%s()', (string) $factory[0], $factory[1]);
+ } elseif ($factory[0] instanceof Definition) {
+ $return[] = sprintf('@return object An instance returned by %s::%s()', $factory[0]->getClass(), $factory[1]);
+ }
+ }
+ } elseif ($definition->getFactoryClass(false)) {
+ $return[] = sprintf('@return object An instance returned by %s::%s()', $definition->getFactoryClass(false), $definition->getFactoryMethod(false));
+ } elseif ($definition->getFactoryService(false)) {
+ $return[] = sprintf('@return object An instance returned by %s::%s()', $definition->getFactoryService(false), $definition->getFactoryMethod(false));
+ }
+
+ $scope = $definition->getScope(false);
+ if (!in_array($scope, array(ContainerInterface::SCOPE_CONTAINER, ContainerInterface::SCOPE_PROTOTYPE))) {
+ if ($return && 0 === strpos($return[count($return) - 1], '@return')) {
+ $return[] = '';
+ }
+ $return[] = sprintf("@throws InactiveScopeException when the '%s' service is requested while the '%s' scope is not active", $id, $scope);
+ }
+
+ if ($definition->isDeprecated()) {
+ if ($return && 0 === strpos($return[count($return) - 1], '@return')) {
+ $return[] = '';
+ }
+
+ $return[] = sprintf('@deprecated %s', $definition->getDeprecationMessage($id));
+ }
+
+ $return = str_replace("\n * \n", "\n *\n", implode("\n * ", $return));
+
+ $doc = '';
+ if ($definition->isShared() && ContainerInterface::SCOPE_PROTOTYPE !== $scope) {
+ $doc .= <<<'EOF'
+
+ *
+ * This service is shared.
+ * This method always returns the same instance of the service.
+EOF;
+ }
+
+ if (!$definition->isPublic()) {
+ $doc .= <<<'EOF'
+
+ *
+ * This service is private.
+ * If you want to be able to request this service from the container directly,
+ * make it public, otherwise you might end up with broken code.
+EOF;
+ }
+
+ if ($definition->isAutowired()) {
+ $doc .= <<<EOF
+
+ *
+ * This service is autowired.
+EOF;
+ }
+
+ if ($definition->isLazy()) {
+ $lazyInitialization = '$lazyLoad = true';
+ $lazyInitializationDoc = "\n * @param bool \$lazyLoad whether to try lazy-loading the service with a proxy\n *";
+ } else {
+ $lazyInitialization = '';
+ $lazyInitializationDoc = '';
+ }
+
+ // with proxies, for 5.3.3 compatibility, the getter must be public to be accessible to the initializer
+ $isProxyCandidate = $this->getProxyDumper()->isProxyCandidate($definition);
+ $visibility = $isProxyCandidate ? 'public' : 'protected';
+ $code = <<<EOF
+
+ /*{$this->docStar}
+ * Gets the '$id' service.$doc
+ *$lazyInitializationDoc
+ * $return
+ */
+ {$visibility} function get{$this->camelize($id)}Service($lazyInitialization)
+ {
+
+EOF;
+
+ $code .= $isProxyCandidate ? $this->getProxyDumper()->getProxyFactoryCode($definition, $id) : '';
+
+ if (!in_array($scope, array(ContainerInterface::SCOPE_CONTAINER, ContainerInterface::SCOPE_PROTOTYPE))) {
+ $code .= <<<EOF
+ if (!isset(\$this->scopedServices['$scope'])) {
+ throw new InactiveScopeException('$id', '$scope');
+ }
+
+
+EOF;
+ }
+
+ if ($definition->isSynthetic()) {
+ $code .= sprintf(" throw new RuntimeException('You have requested a synthetic service (\"%s\"). The DIC does not know how to construct this service.');\n }\n", $id);
+ } else {
+ if ($definition->isDeprecated()) {
+ $code .= sprintf(" @trigger_error(%s, E_USER_DEPRECATED);\n\n", var_export($definition->getDeprecationMessage($id), true));
+ }
+
+ $code .=
+ $this->addServiceInclude($id, $definition).
+ $this->addServiceLocalTempVariables($id, $definition).
+ $this->addServiceInlinedDefinitions($id, $definition).
+ $this->addServiceInstance($id, $definition).
+ $this->addServiceInlinedDefinitionsSetup($id, $definition).
+ $this->addServiceProperties($id, $definition).
+ $this->addServiceMethodCalls($id, $definition).
+ $this->addServiceConfigurator($id, $definition).
+ $this->addServiceReturn($id, $definition)
+ ;
+ }
+
+ $this->definitionVariables = null;
+ $this->referenceVariables = null;
+
+ return $code;
+ }
+
+ /**
+ * Adds multiple services.
+ *
+ * @return string
+ */
+ private function addServices()
+ {
+ $publicServices = $privateServices = $synchronizers = '';
+ $definitions = $this->container->getDefinitions();
+ ksort($definitions);
+ foreach ($definitions as $id => $definition) {
+ if ($definition->isPublic()) {
+ $publicServices .= $this->addService($id, $definition);
+ } else {
+ $privateServices .= $this->addService($id, $definition);
+ }
+
+ $synchronizers .= $this->addServiceSynchronizer($id, $definition);
+ }
+
+ return $publicServices.$synchronizers.$privateServices;
+ }
+
+ /**
+ * Adds synchronizer methods.
+ *
+ * @param string $id A service identifier
+ * @param Definition $definition A Definition instance
+ *
+ * @return string|null
+ *
+ * @deprecated since version 2.7, will be removed in 3.0.
+ */
+ private function addServiceSynchronizer($id, Definition $definition)
+ {
+ if (!$definition->isSynchronized(false)) {
+ return;
+ }
+
+ if ('request' !== $id) {
+ @trigger_error('Synchronized services were deprecated in version 2.7 and won\'t work anymore in 3.0.', E_USER_DEPRECATED);
+ }
+
+ $code = '';
+ foreach ($this->container->getDefinitions() as $definitionId => $definition) {
+ foreach ($definition->getMethodCalls() as $call) {
+ foreach ($call[1] as $argument) {
+ if ($argument instanceof Reference && $id == (string) $argument) {
+ $arguments = array();
+ foreach ($call[1] as $value) {
+ $arguments[] = $this->dumpValue($value);
+ }
+
+ $call = $this->wrapServiceConditionals($call[1], sprintf("\$this->get('%s')->%s(%s);", $definitionId, $call[0], implode(', ', $arguments)));
+
+ $code .= <<<EOF
+ if (\$this->initialized('$definitionId')) {
+ $call
+ }
+
+EOF;
+ }
+ }
+ }
+ }
+
+ if (!$code) {
+ return;
+ }
+
+ return <<<EOF
+
+ /*{$this->docStar}
+ * Updates the '$id' service.
+ */
+ protected function synchronize{$this->camelize($id)}Service()
+ {
+$code }
+
+EOF;
+ }
+
+ private function addNewInstance($id, Definition $definition, $return, $instantiation)
+ {
+ $class = $this->dumpValue($definition->getClass());
+
+ $arguments = array();
+ foreach ($definition->getArguments() as $value) {
+ $arguments[] = $this->dumpValue($value);
+ }
+
+ if (null !== $definition->getFactory()) {
+ $callable = $definition->getFactory();
+ if (is_array($callable)) {
+ if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $callable[1])) {
+ throw new RuntimeException(sprintf('Cannot dump definition because of invalid factory method (%s)', $callable[1] ?: 'n/a'));
+ }
+
+ if ($callable[0] instanceof Reference
+ || ($callable[0] instanceof Definition && $this->definitionVariables->contains($callable[0]))) {
+ return sprintf(" $return{$instantiation}%s->%s(%s);\n", $this->dumpValue($callable[0]), $callable[1], $arguments ? implode(', ', $arguments) : '');
+ }
+
+ $class = $this->dumpValue($callable[0]);
+ // If the class is a string we can optimize call_user_func away
+ if (strpos($class, "'") === 0) {
+ return sprintf(" $return{$instantiation}%s::%s(%s);\n", $this->dumpLiteralClass($class), $callable[1], $arguments ? implode(', ', $arguments) : '');
+ }
+
+ return sprintf(" $return{$instantiation}call_user_func(array(%s, '%s')%s);\n", $this->dumpValue($callable[0]), $callable[1], $arguments ? ', '.implode(', ', $arguments) : '');
+ }
+
+ return sprintf(" $return{$instantiation}\\%s(%s);\n", $callable, $arguments ? implode(', ', $arguments) : '');
+ } elseif (null !== $definition->getFactoryMethod(false)) {
+ if (null !== $definition->getFactoryClass(false)) {
+ $class = $this->dumpValue($definition->getFactoryClass(false));
+
+ // If the class is a string we can optimize call_user_func away
+ if (strpos($class, "'") === 0) {
+ return sprintf(" $return{$instantiation}%s::%s(%s);\n", $this->dumpLiteralClass($class), $definition->getFactoryMethod(false), $arguments ? implode(', ', $arguments) : '');
+ }
+
+ return sprintf(" $return{$instantiation}call_user_func(array(%s, '%s')%s);\n", $this->dumpValue($definition->getFactoryClass(false)), $definition->getFactoryMethod(false), $arguments ? ', '.implode(', ', $arguments) : '');
+ }
+
+ if (null !== $definition->getFactoryService(false)) {
+ return sprintf(" $return{$instantiation}%s->%s(%s);\n", $this->getServiceCall($definition->getFactoryService(false)), $definition->getFactoryMethod(false), implode(', ', $arguments));
+ }
+
+ throw new RuntimeException(sprintf('Factory method requires a factory service or factory class in service definition for %s', $id));
+ }
+
+ if (false !== strpos($class, '$')) {
+ return sprintf(" \$class = %s;\n\n $return{$instantiation}new \$class(%s);\n", $class, implode(', ', $arguments));
+ }
+
+ return sprintf(" $return{$instantiation}new %s(%s);\n", $this->dumpLiteralClass($class), implode(', ', $arguments));
+ }
+
+ /**
+ * Adds the class headers.
+ *
+ * @param string $class Class name
+ * @param string $baseClass The name of the base class
+ * @param string $namespace The class namespace
+ *
+ * @return string
+ */
+ private function startClass($class, $baseClass, $namespace)
+ {
+ $bagClass = $this->container->isFrozen() ? 'use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;' : 'use Symfony\Component\DependencyInjection\ParameterBag\\ParameterBag;';
+ $namespaceLine = $namespace ? "namespace $namespace;\n" : '';
+
+ return <<<EOF
+<?php
+$namespaceLine
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Container;
+use Symfony\Component\DependencyInjection\Exception\InactiveScopeException;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\LogicException;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+$bagClass
+
+/*{$this->docStar}
+ * $class.
+ *
+ * This class has been auto-generated
+ * by the Symfony Dependency Injection Component.
+ */
+class $class extends $baseClass
+{
+ private \$parameters;
+ private \$targetDirs = array();
+
+EOF;
+ }
+
+ /**
+ * Adds the constructor.
+ *
+ * @return string
+ */
+ private function addConstructor()
+ {
+ $targetDirs = $this->exportTargetDirs();
+ $arguments = $this->container->getParameterBag()->all() ? 'new ParameterBag($this->getDefaultParameters())' : null;
+
+ $code = <<<EOF
+
+ /*{$this->docStar}
+ * Constructor.
+ */
+ public function __construct()
+ {{$targetDirs}
+ parent::__construct($arguments);
+
+EOF;
+
+ if (count($scopes = $this->container->getScopes(false)) > 0) {
+ $code .= "\n";
+ $code .= ' $this->scopes = '.$this->dumpValue($scopes).";\n";
+ $code .= ' $this->scopeChildren = '.$this->dumpValue($this->container->getScopeChildren(false)).";\n";
+ }
+
+ $code .= $this->addMethodMap();
+ $code .= $this->addAliases();
+
+ $code .= <<<'EOF'
+ }
+
+EOF;
+
+ return $code;
+ }
+
+ /**
+ * Adds the constructor for a frozen container.
+ *
+ * @return string
+ */
+ private function addFrozenConstructor()
+ {
+ $targetDirs = $this->exportTargetDirs();
+
+ $code = <<<EOF
+
+ /*{$this->docStar}
+ * Constructor.
+ */
+ public function __construct()
+ {{$targetDirs}
+EOF;
+
+ if ($this->container->getParameterBag()->all()) {
+ $code .= "\n \$this->parameters = \$this->getDefaultParameters();\n";
+ }
+
+ $code .= <<<'EOF'
+
+ $this->services =
+ $this->scopedServices =
+ $this->scopeStacks = array();
+EOF;
+
+ $code .= "\n";
+ if (count($scopes = $this->container->getScopes(false)) > 0) {
+ $code .= ' $this->scopes = '.$this->dumpValue($scopes).";\n";
+ $code .= ' $this->scopeChildren = '.$this->dumpValue($this->container->getScopeChildren(false)).";\n";
+ } else {
+ $code .= " \$this->scopes = array();\n";
+ $code .= " \$this->scopeChildren = array();\n";
+ }
+
+ $code .= $this->addMethodMap();
+ $code .= $this->addAliases();
+
+ $code .= <<<'EOF'
+ }
+
+EOF;
+
+ return $code;
+ }
+
+ /**
+ * Adds the constructor for a frozen container.
+ *
+ * @return string
+ */
+ private function addFrozenCompile()
+ {
+ return <<<EOF
+
+ /*{$this->docStar}
+ * {@inheritdoc}
+ */
+ public function compile()
+ {
+ throw new LogicException('You cannot compile a dumped frozen container.');
+ }
+
+EOF;
+ }
+
+ /**
+ * Adds the isFrozen method for a frozen container.
+ *
+ * @return string
+ */
+ private function addIsFrozenMethod()
+ {
+ return <<<EOF
+
+ /*{$this->docStar}
+ * {@inheritdoc}
+ */
+ public function isFrozen()
+ {
+ return true;
+ }
+
+EOF;
+ }
+
+ /**
+ * Adds the methodMap property definition.
+ *
+ * @return string
+ */
+ private function addMethodMap()
+ {
+ if (!$definitions = $this->container->getDefinitions()) {
+ return '';
+ }
+
+ $code = " \$this->methodMap = array(\n";
+ ksort($definitions);
+ foreach ($definitions as $id => $definition) {
+ $code .= ' '.var_export($id, true).' => '.var_export('get'.$this->camelize($id).'Service', true).",\n";
+ }
+
+ return $code." );\n";
+ }
+
+ /**
+ * Adds the aliases property definition.
+ *
+ * @return string
+ */
+ private function addAliases()
+ {
+ if (!$aliases = $this->container->getAliases()) {
+ return $this->container->isFrozen() ? "\n \$this->aliases = array();\n" : '';
+ }
+
+ $code = " \$this->aliases = array(\n";
+ ksort($aliases);
+ foreach ($aliases as $alias => $id) {
+ $id = (string) $id;
+ while (isset($aliases[$id])) {
+ $id = (string) $aliases[$id];
+ }
+ $code .= ' '.var_export($alias, true).' => '.var_export($id, true).",\n";
+ }
+
+ return $code." );\n";
+ }
+
+ /**
+ * Adds default parameters method.
+ *
+ * @return string
+ */
+ private function addDefaultParametersMethod()
+ {
+ if (!$this->container->getParameterBag()->all()) {
+ return '';
+ }
+
+ $parameters = $this->exportParameters($this->container->getParameterBag()->all());
+
+ $code = '';
+ if ($this->container->isFrozen()) {
+ $code .= <<<'EOF'
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getParameter($name)
+ {
+ $name = strtolower($name);
+
+ if (!(isset($this->parameters[$name]) || array_key_exists($name, $this->parameters))) {
+ throw new InvalidArgumentException(sprintf('The parameter "%s" must be defined.', $name));
+ }
+
+ return $this->parameters[$name];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function hasParameter($name)
+ {
+ $name = strtolower($name);
+
+ return isset($this->parameters[$name]) || array_key_exists($name, $this->parameters);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setParameter($name, $value)
+ {
+ throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getParameterBag()
+ {
+ if (null === $this->parameterBag) {
+ $this->parameterBag = new FrozenParameterBag($this->parameters);
+ }
+
+ return $this->parameterBag;
+ }
+
+EOF;
+ if ('' === $this->docStar) {
+ $code = str_replace('/**', '/*', $code);
+ }
+ }
+
+ $code .= <<<EOF
+
+ /*{$this->docStar}
+ * Gets the default parameters.
+ *
+ * @return array An array of the default parameters
+ */
+ protected function getDefaultParameters()
+ {
+ return $parameters;
+ }
+
+EOF;
+
+ return $code;
+ }
+
+ /**
+ * Exports parameters.
+ *
+ * @param array $parameters
+ * @param string $path
+ * @param int $indent
+ *
+ * @return string
+ *
+ * @throws InvalidArgumentException
+ */
+ private function exportParameters(array $parameters, $path = '', $indent = 12)
+ {
+ $php = array();
+ foreach ($parameters as $key => $value) {
+ if (is_array($value)) {
+ $value = $this->exportParameters($value, $path.'/'.$key, $indent + 4);
+ } elseif ($value instanceof Variable) {
+ throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain variable references. Variable "%s" found in "%s".', $value, $path.'/'.$key));
+ } elseif ($value instanceof Definition) {
+ throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain service definitions. Definition for "%s" found in "%s".', $value->getClass(), $path.'/'.$key));
+ } elseif ($value instanceof Reference) {
+ throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain references to other services (reference to service "%s" found in "%s").', $value, $path.'/'.$key));
+ } elseif ($value instanceof Expression) {
+ throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain expressions. Expression "%s" found in "%s".', $value, $path.'/'.$key));
+ } else {
+ $value = $this->export($value);
+ }
+
+ $php[] = sprintf('%s%s => %s,', str_repeat(' ', $indent), var_export($key, true), $value);
+ }
+
+ return sprintf("array(\n%s\n%s)", implode("\n", $php), str_repeat(' ', $indent - 4));
+ }
+
+ /**
+ * Ends the class definition.
+ *
+ * @return string
+ */
+ private function endClass()
+ {
+ return <<<'EOF'
+}
+
+EOF;
+ }
+
+ /**
+ * Wraps the service conditionals.
+ *
+ * @param string $value
+ * @param string $code
+ *
+ * @return string
+ */
+ private function wrapServiceConditionals($value, $code)
+ {
+ if (!$services = ContainerBuilder::getServiceConditionals($value)) {
+ return $code;
+ }
+
+ $conditions = array();
+ foreach ($services as $service) {
+ $conditions[] = sprintf("\$this->has('%s')", $service);
+ }
+
+ // re-indent the wrapped code
+ $code = implode("\n", array_map(function ($line) { return $line ? ' '.$line : $line; }, explode("\n", $code)));
+
+ return sprintf(" if (%s) {\n%s }\n", implode(' && ', $conditions), $code);
+ }
+
+ /**
+ * Builds service calls from arguments.
+ *
+ * @param array $arguments
+ * @param array &$calls By reference
+ * @param array &$behavior By reference
+ */
+ private function getServiceCallsFromArguments(array $arguments, array &$calls, array &$behavior)
+ {
+ foreach ($arguments as $argument) {
+ if (is_array($argument)) {
+ $this->getServiceCallsFromArguments($argument, $calls, $behavior);
+ } elseif ($argument instanceof Reference) {
+ $id = (string) $argument;
+
+ if (!isset($calls[$id])) {
+ $calls[$id] = 0;
+ }
+ if (!isset($behavior[$id])) {
+ $behavior[$id] = $argument->getInvalidBehavior();
+ } elseif (ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $behavior[$id]) {
+ $behavior[$id] = $argument->getInvalidBehavior();
+ }
+
+ ++$calls[$id];
+ }
+ }
+ }
+
+ /**
+ * Returns the inline definition.
+ *
+ * @param Definition $definition
+ *
+ * @return array
+ */
+ private function getInlinedDefinitions(Definition $definition)
+ {
+ if (false === $this->inlinedDefinitions->contains($definition)) {
+ $definitions = array_merge(
+ $this->getDefinitionsFromArguments($definition->getArguments()),
+ $this->getDefinitionsFromArguments($definition->getMethodCalls()),
+ $this->getDefinitionsFromArguments($definition->getProperties()),
+ $this->getDefinitionsFromArguments(array($definition->getConfigurator())),
+ $this->getDefinitionsFromArguments(array($definition->getFactory()))
+ );
+
+ $this->inlinedDefinitions->offsetSet($definition, $definitions);
+
+ return $definitions;
+ }
+
+ return $this->inlinedDefinitions->offsetGet($definition);
+ }
+
+ /**
+ * Gets the definition from arguments.
+ *
+ * @param array $arguments
+ *
+ * @return array
+ */
+ private function getDefinitionsFromArguments(array $arguments)
+ {
+ $definitions = array();
+ foreach ($arguments as $argument) {
+ if (is_array($argument)) {
+ $definitions = array_merge($definitions, $this->getDefinitionsFromArguments($argument));
+ } elseif ($argument instanceof Definition) {
+ $definitions = array_merge(
+ $definitions,
+ $this->getInlinedDefinitions($argument),
+ array($argument)
+ );
+ }
+ }
+
+ return $definitions;
+ }
+
+ /**
+ * Checks if a service id has a reference.
+ *
+ * @param string $id
+ * @param array $arguments
+ * @param bool $deep
+ * @param array $visited
+ *
+ * @return bool
+ */
+ private function hasReference($id, array $arguments, $deep = false, array &$visited = array())
+ {
+ foreach ($arguments as $argument) {
+ if (is_array($argument)) {
+ if ($this->hasReference($id, $argument, $deep, $visited)) {
+ return true;
+ }
+ } elseif ($argument instanceof Reference) {
+ $argumentId = (string) $argument;
+ if ($id === $argumentId) {
+ return true;
+ }
+
+ if ($deep && !isset($visited[$argumentId]) && 'service_container' !== $argumentId) {
+ $visited[$argumentId] = true;
+
+ $service = $this->container->getDefinition($argumentId);
+
+ // if the proxy manager is enabled, disable searching for references in lazy services,
+ // as these services will be instantiated lazily and don't have direct related references.
+ if ($service->isLazy() && !$this->getProxyDumper() instanceof NullDumper) {
+ continue;
+ }
+
+ $arguments = array_merge($service->getMethodCalls(), $service->getArguments(), $service->getProperties());
+
+ if ($this->hasReference($id, $arguments, $deep, $visited)) {
+ return true;
+ }
+ }
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Dumps values.
+ *
+ * @param mixed $value
+ * @param bool $interpolate
+ *
+ * @return string
+ *
+ * @throws RuntimeException
+ */
+ private function dumpValue($value, $interpolate = true)
+ {
+ if (is_array($value)) {
+ $code = array();
+ foreach ($value as $k => $v) {
+ $code[] = sprintf('%s => %s', $this->dumpValue($k, $interpolate), $this->dumpValue($v, $interpolate));
+ }
+
+ return sprintf('array(%s)', implode(', ', $code));
+ } elseif ($value instanceof Definition) {
+ if (null !== $this->definitionVariables && $this->definitionVariables->contains($value)) {
+ return $this->dumpValue($this->definitionVariables->offsetGet($value), $interpolate);
+ }
+ if (count($value->getMethodCalls()) > 0) {
+ throw new RuntimeException('Cannot dump definitions which have method calls.');
+ }
+ if (null !== $value->getConfigurator()) {
+ throw new RuntimeException('Cannot dump definitions which have a configurator.');
+ }
+
+ $arguments = array();
+ foreach ($value->getArguments() as $argument) {
+ $arguments[] = $this->dumpValue($argument);
+ }
+
+ if (null !== $value->getFactory()) {
+ $factory = $value->getFactory();
+
+ if (is_string($factory)) {
+ return sprintf('\\%s(%s)', $factory, implode(', ', $arguments));
+ }
+
+ if (is_array($factory)) {
+ if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $factory[1])) {
+ throw new RuntimeException(sprintf('Cannot dump definition because of invalid factory method (%s)', $factory[1] ?: 'n/a'));
+ }
+
+ if (is_string($factory[0])) {
+ return sprintf('%s::%s(%s)', $this->dumpLiteralClass($this->dumpValue($factory[0])), $factory[1], implode(', ', $arguments));
+ }
+
+ if ($factory[0] instanceof Definition) {
+ return sprintf("call_user_func(array(%s, '%s')%s)", $this->dumpValue($factory[0]), $factory[1], count($arguments) > 0 ? ', '.implode(', ', $arguments) : '');
+ }
+
+ if ($factory[0] instanceof Reference) {
+ return sprintf('%s->%s(%s)', $this->dumpValue($factory[0]), $factory[1], implode(', ', $arguments));
+ }
+ }
+
+ throw new RuntimeException('Cannot dump definition because of invalid factory');
+ }
+
+ if (null !== $value->getFactoryMethod(false)) {
+ if (null !== $value->getFactoryClass(false)) {
+ return sprintf("call_user_func(array(%s, '%s')%s)", $this->dumpValue($value->getFactoryClass(false)), $value->getFactoryMethod(false), count($arguments) > 0 ? ', '.implode(', ', $arguments) : '');
+ } elseif (null !== $value->getFactoryService(false)) {
+ $service = $this->dumpValue($value->getFactoryService(false));
+
+ return sprintf('%s->%s(%s)', 0 === strpos($service, '$') ? sprintf('$this->get(%s)', $service) : $this->getServiceCall($value->getFactoryService(false)), $value->getFactoryMethod(false), implode(', ', $arguments));
+ }
+
+ throw new RuntimeException('Cannot dump definitions which have factory method without factory service or factory class.');
+ }
+
+ $class = $value->getClass();
+ if (null === $class) {
+ throw new RuntimeException('Cannot dump definitions which have no class nor factory.');
+ }
+
+ return sprintf('new %s(%s)', $this->dumpLiteralClass($this->dumpValue($class)), implode(', ', $arguments));
+ } elseif ($value instanceof Variable) {
+ return '$'.$value;
+ } elseif ($value instanceof Reference) {
+ if (null !== $this->referenceVariables && isset($this->referenceVariables[$id = (string) $value])) {
+ return $this->dumpValue($this->referenceVariables[$id], $interpolate);
+ }
+
+ return $this->getServiceCall((string) $value, $value);
+ } elseif ($value instanceof Expression) {
+ return $this->getExpressionLanguage()->compile((string) $value, array('this' => 'container'));
+ } elseif ($value instanceof Parameter) {
+ return $this->dumpParameter($value);
+ } elseif (true === $interpolate && is_string($value)) {
+ if (preg_match('/^%([^%]+)%$/', $value, $match)) {
+ // we do this to deal with non string values (Boolean, integer, ...)
+ // the preg_replace_callback converts them to strings
+ return $this->dumpParameter(strtolower($match[1]));
+ } else {
+ $that = $this;
+ $replaceParameters = function ($match) use ($that) {
+ return "'.".$that->dumpParameter(strtolower($match[2])).".'";
+ };
+
+ $code = str_replace('%%', '%', preg_replace_callback('/(?<!%)(%)([^%]+)\1/', $replaceParameters, $this->export($value)));
+
+ return $code;
+ }
+ } elseif (is_object($value) || is_resource($value)) {
+ throw new RuntimeException('Unable to dump a service container if a parameter is an object or a resource.');
+ }
+
+ return $this->export($value);
+ }
+
+ /**
+ * Dumps a string to a literal (aka PHP Code) class value.
+ *
+ * @param string $class
+ *
+ * @return string
+ *
+ * @throws RuntimeException
+ */
+ private function dumpLiteralClass($class)
+ {
+ if (false !== strpos($class, '$')) {
+ throw new RuntimeException('Cannot dump definitions which have a variable class name.');
+ }
+ if (0 !== strpos($class, "'") || !preg_match('/^\'[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*(\\\{2}[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)*\'$/', $class)) {
+ throw new RuntimeException(sprintf('Cannot dump definition because of invalid class name (%s)', $class ?: 'n/a'));
+ }
+
+ return '\\'.substr(str_replace('\\\\', '\\', $class), 1, -1);
+ }
+
+ /**
+ * Dumps a parameter.
+ *
+ * @param string $name
+ *
+ * @return string
+ */
+ public function dumpParameter($name)
+ {
+ if ($this->container->isFrozen() && $this->container->hasParameter($name)) {
+ return $this->dumpValue($this->container->getParameter($name), false);
+ }
+
+ return sprintf("\$this->getParameter('%s')", strtolower($name));
+ }
+
+ /**
+ * @deprecated since version 2.6.2, to be removed in 3.0.
+ * Use \Symfony\Component\DependencyInjection\ContainerBuilder::addExpressionLanguageProvider instead.
+ *
+ * @param ExpressionFunctionProviderInterface $provider
+ */
+ public function addExpressionLanguageProvider(ExpressionFunctionProviderInterface $provider)
+ {
+ @trigger_error('The '.__METHOD__.' method is deprecated since version 2.6.2 and will be removed in 3.0. Use the Symfony\Component\DependencyInjection\ContainerBuilder::addExpressionLanguageProvider method instead.', E_USER_DEPRECATED);
+
+ $this->expressionLanguageProviders[] = $provider;
+ }
+
+ /**
+ * Gets a service call.
+ *
+ * @param string $id
+ * @param Reference $reference
+ *
+ * @return string
+ */
+ private function getServiceCall($id, Reference $reference = null)
+ {
+ if ('service_container' === $id) {
+ return '$this';
+ }
+
+ if (null !== $reference && ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $reference->getInvalidBehavior()) {
+ return sprintf('$this->get(\'%s\', ContainerInterface::NULL_ON_INVALID_REFERENCE)', $id);
+ }
+
+ if ($this->container->hasAlias($id)) {
+ $id = (string) $this->container->getAlias($id);
+ }
+
+ return sprintf('$this->get(\'%s\')', $id);
+ }
+
+ /**
+ * Convert a service id to a valid PHP method name.
+ *
+ * @param string $id
+ *
+ * @return string
+ *
+ * @throws InvalidArgumentException
+ */
+ private function camelize($id)
+ {
+ $name = Container::camelize($id);
+
+ if (!preg_match('/^[a-zA-Z0-9_\x7f-\xff]+$/', $name)) {
+ throw new InvalidArgumentException(sprintf('Service id "%s" cannot be converted to a valid PHP method name.', $id));
+ }
+
+ return $name;
+ }
+
+ /**
+ * Returns the next name to use.
+ *
+ * @return string
+ */
+ private function getNextVariableName()
+ {
+ $firstChars = self::FIRST_CHARS;
+ $firstCharsLength = strlen($firstChars);
+ $nonFirstChars = self::NON_FIRST_CHARS;
+ $nonFirstCharsLength = strlen($nonFirstChars);
+
+ while (true) {
+ $name = '';
+ $i = $this->variableCount;
+
+ if ('' === $name) {
+ $name .= $firstChars[$i % $firstCharsLength];
+ $i = (int) ($i / $firstCharsLength);
+ }
+
+ while ($i > 0) {
+ --$i;
+ $name .= $nonFirstChars[$i % $nonFirstCharsLength];
+ $i = (int) ($i / $nonFirstCharsLength);
+ }
+
+ ++$this->variableCount;
+
+ // check that the name is not reserved
+ if (in_array($name, $this->reservedVariables, true)) {
+ continue;
+ }
+
+ return $name;
+ }
+ }
+
+ private function getExpressionLanguage()
+ {
+ if (null === $this->expressionLanguage) {
+ if (!class_exists('Symfony\Component\ExpressionLanguage\ExpressionLanguage')) {
+ throw new RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
+ }
+ $providers = array_merge($this->container->getExpressionLanguageProviders(), $this->expressionLanguageProviders);
+ $this->expressionLanguage = new ExpressionLanguage(null, $providers);
+
+ if ($this->container->isTrackingResources()) {
+ foreach ($providers as $provider) {
+ $this->container->addObjectResource($provider);
+ }
+ }
+ }
+
+ return $this->expressionLanguage;
+ }
+
+ private function exportTargetDirs()
+ {
+ return null === $this->targetDirRegex ? '' : <<<EOF
+
+ \$dir = __DIR__;
+ for (\$i = 1; \$i <= {$this->targetDirMaxMatches}; ++\$i) {
+ \$this->targetDirs[\$i] = \$dir = dirname(\$dir);
+ }
+EOF;
+ }
+
+ private function export($value)
+ {
+ if (null !== $this->targetDirRegex && is_string($value) && preg_match($this->targetDirRegex, $value, $matches, PREG_OFFSET_CAPTURE)) {
+ $prefix = $matches[0][1] ? var_export(substr($value, 0, $matches[0][1]), true).'.' : '';
+ $suffix = $matches[0][1] + strlen($matches[0][0]);
+ $suffix = isset($value[$suffix]) ? '.'.var_export(substr($value, $suffix), true) : '';
+ $dirname = '__DIR__';
+
+ if (0 < $offset = 1 + $this->targetDirMaxMatches - count($matches)) {
+ $dirname = sprintf('$this->targetDirs[%d]', $offset);
+ }
+
+ if ($prefix || $suffix) {
+ return sprintf('(%s%s%s)', $prefix, $dirname, $suffix);
+ }
+
+ return $dirname;
+ }
+
+ return var_export($value, true);
+ }
+}