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File Name : PhpDumper.php

<?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;

/**
 * PhpDumper dumps a service container as a PHP class.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
 *
 * @api
 */
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;

/**
     * @var \Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface
     */
    private $proxyDumper;

/**
     * {@inheritDoc}
     *
     * @api
     */
    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
     *
     * @api
     */
    public function dump(array $options = array())
    {
        $options = array_merge(array(
            'class'      => 'ProjectServiceContainer',
            'base_class' => 'Container',
            'namespace' => '',
        ), $options);

$code = $this->startClass($options['class'], $options['base_class'], $options['namespace']);

if ($this->container->isFrozen()) {
            $code .= $this->addFrozenConstructor();
        } else {
            $code .= $this->addConstructor();
        }

$code .=
            $this->addServices().
            $this->addDefaultParametersMethod().
            $this->endClass().
            $this->addProxyClasses()
        ;

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);
        }

$code = '';
        foreach ($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 = '';

foreach ($definitions as $definition) {
            $code .= "\n" . $this->getProxyDumper()->getProxyCode($definition);
        }

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->addServiceMethodCalls(null, $sDefinition, $name);
                    $code .= $this->addServiceProperties(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)
    {
        $class = $this->dumpValue($definition->getClass());

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 && ContainerInterface::SCOPE_CONTAINER === $definition->getScope()) {
            $instantiation = "\$this->services['$id'] = ".($simple ? '' : '$instance');
        } elseif (!$isProxyCandidate && ContainerInterface::SCOPE_PROTOTYPE !== $scope = $definition->getScope()) {
            $instantiation = "\$this->services['$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 $definition
     *
     * @return Boolean
     */
    private function isSimpleInstance($id, $definition)
    {
        foreach (array_merge(array($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, $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, $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 $definition
     * @return string
     */
    private function addServiceInlinedDefinitionsSetup($id, $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->addServiceMethodCalls(null, $iDefinition, $name);
            $code .= $this->addServiceProperties(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, $variableName = 'instance')
    {
        if (!$callable = $definition->getConfigurator()) {
            return '';
        }

if (is_array($callable)) {
            if ($callable[0] instanceof Reference) {
                return sprintf("        %s->%s(\$%s);\n", $this->getServiceCall((string) $callable[0]), $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)
    {
        $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' : $class, $class);
        } elseif ($definition->getFactoryClass()) {
            $return[] = sprintf('@return object An instance returned by %s::%s().', $definition->getFactoryClass(), $definition->getFactoryMethod());
        } elseif ($definition->getFactoryService()) {
            $return[] = sprintf('@return object An instance returned by %s::%s().', $definition->getFactoryService(), $definition->getFactoryMethod());
        }

$scope = $definition->getScope();
        if (!in_array($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);
        }

$return = implode("\n     * ", $return);

$doc = '';
        if (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->isLazy()) {
            $lazyInitialization    = '$lazyLoad = true';
            $lazyInitializationDoc = "\n     * @param boolean \$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

/**
     * 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 {
            $code .=
                $this->addServiceInclude($id, $definition).
                $this->addServiceLocalTempVariables($id, $definition).
                $this->addServiceInlinedDefinitions($id, $definition).
                $this->addServiceInstance($id, $definition).
                $this->addServiceInlinedDefinitionsSetup($id, $definition).
                $this->addServiceMethodCalls($id, $definition).
                $this->addServiceProperties($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 $definition A Definition instance
     */
    private function addServiceSynchronizer($id, Definition $definition)
    {
        if (!$definition->isSynchronized()) {
            return;
        }

$code = '';
        foreach ($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

/**
     * 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->getFactoryMethod()) {
            if (null !== $definition->getFactoryClass()) {
                return sprintf("        $return{$instantiation}call_user_func(array(%s, '%s')%s);\n", $this->dumpValue($definition->getFactoryClass()), $definition->getFactoryMethod(), $arguments ? ', '.implode(', ', $arguments) : '');
            }

if (null !== $definition->getFactoryService()) {
                return sprintf("        $return{$instantiation}%s->%s(%s);\n", $this->getServiceCall($definition->getFactoryService()), $definition->getFactoryMethod(), 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", substr(str_replace('\\\\', '\\', $class), 1, -1), 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

/**
 * $class
 *
 * This class has been auto-generated
 * by the Symfony Dependency Injection Component.
 */
class $class extends $baseClass
{
EOF;
    }

/**
     * Adds the constructor.
     *
     * @return string
     */
    private function addConstructor()
    {
        $arguments = $this->container->getParameterBag()->all() ? 'new ParameterBag($this->getDefaultParameters())' : null;

$code = <<<EOF

/**
     * Constructor.
     */
    public function __construct()
    {
        parent::__construct($arguments);

EOF;

if (count($scopes = $this->container->getScopes()) > 0) {
            $code .= "\n";
            $code .= "        \$this->scopes = ".$this->dumpValue($scopes).";\n";
            $code .= "        \$this->scopeChildren = ".$this->dumpValue($this->container->getScopeChildren()).";\n";
        }

$code .= $this->addMethodMap();
        $code .= $this->addAliases();

$code .= <<<EOF
    }

EOF;

return $code;
    }

/**
     * Adds the constructor for a frozen container.
     *
     * @return string
     */
    private function addFrozenConstructor()
    {
        $code = <<<EOF

/**
     * Constructor.
     */
    public function __construct()
    {
EOF;

if ($this->container->getParameterBag()->all()) {
            $code .= "\n        \$this->parameters = \$this->getDefaultParameters();\n";
        }

$code .= <<<EOF

\$this->services =
        \$this->scopedServices =
        \$this->scopeStacks = array();

\$this->set('service_container', \$this);

EOF;

$code .= "\n";
        if (count($scopes = $this->container->getScopes()) > 0) {
            $code .= "        \$this->scopes = ".$this->dumpValue($scopes).";\n";
            $code .= "        \$this->scopeChildren = ".$this->dumpValue($this->container->getScopeChildren()).";\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 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 = $this->container->getAliases()) {
            if ($this->container->isFrozen()) {
                return "\n        \$this->aliases = array();\n";
            } else {
                return '';
            }
        }

$code = "        \$this->aliases = array(\n";
        ksort($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;
        }

$code .= <<<EOF

/**
     * 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 integer $indent
     *
     * @return string
     *
     * @throws InvalidArgumentException
     */
    private function exportParameters($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 {
                $value = var_export($value, true);
            }

$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] += 1;
            }
        }
    }

/**
     * 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())
            );

$this->inlinedDefinitions->offsetSet($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 Boolean $deep
     * @param array   $visited
     *
     * @return Boolean
     */
    private function hasReference($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])) {
                    $visited[$argumentId] = true;

$service = $this->container->getDefinition($argumentId);
                    $arguments = array_merge($service->getMethodCalls(), $service->getArguments(), $service->getProperties());

if ($this->hasReference($id, $arguments, $deep, $visited)) {
                        return true;
                    }
                }
            }
        }

return false;
    }

/**
     * Dumps values.
     *
     * @param array   $value
     * @param Boolean $interpolate
     *
     * @return string
     *
     * @throws RuntimeException
     */
    private function dumpValue($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);
            }
            $class = $this->dumpValue($value->getClass());

if (false !== strpos($class, '$')) {
                throw new RuntimeException('Cannot dump definitions which have a variable class name.');
            }

if (null !== $value->getFactoryMethod()) {
                if (null !== $value->getFactoryClass()) {
                    return sprintf("call_user_func(array(%s, '%s')%s)", $this->dumpValue($value->getFactoryClass()), $value->getFactoryMethod(), count($arguments) > 0 ? ', '.implode(', ', $arguments) : '');
                } elseif (null !== $value->getFactoryService()) {
                    return sprintf("%s->%s(%s)", $this->getServiceCall($value->getFactoryService()), $value->getFactoryMethod(), implode(', ', $arguments));
                } else {
                    throw new RuntimeException('Cannot dump definitions which have factory method without factory service or factory class.');
                }
            }

return sprintf("new \\%s(%s)", substr(str_replace('\\\\', '\\', $class), 1, -1), 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) $value, array('container'));
        } elseif ($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/', $replaceParameters, var_export($value, true)));

return $code;
            }
        } elseif (is_object($value) || is_resource($value)) {
            throw new RuntimeException('Unable to dump a service container if a parameter is an object or a resource.');
        } else {
            return var_export($value, true);
        }
    }

/**
     * 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));
    }

/**
     * 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)', $id);
        } else {
            if ($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];
                $i = intval($i/$firstCharsLength);
            }

while ($i > 0) {
                $i -= 1;
                $name .= $nonFirstChars[$i%$nonFirstCharsLength];
                $i = intval($i/$nonFirstCharsLength);
            }

$this->variableCount += 1;

// 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.');
            }
            $this->expressionLanguage = new ExpressionLanguage();
        }

return $this->expressionLanguage;
    }
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2024-03-03 10:55:08
..	dir	-	root/root	0755	2024-03-03 10:55:08
Dumper.php	text/x-php	811 B	root/root	0644	2019-12-18 11:20:40
DumperInterface.php	text/x-php	733 B	root/root	0644	2019-12-18 11:20:40
GraphvizDumper.php	text/x-php	9.5 KB	root/root	0644	2019-12-18 11:20:40
PhpDumper.php	text/x-php	43.03 KB	root/root	0644	2019-12-18 11:20:40
XmlDumper.php	text/x-php	10.65 KB	root/root	0644	2019-12-18 11:20:40
YamlDumper.php	text/x-php	9.06 KB	root/root	0644	2019-12-18 11:20:40

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