Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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ProxyDumper.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Bridge\ProxyManager\LazyProxy\PhpDumper;
013
014 use ProxyManager\Generator\ClassGenerator;
015 use ProxyManager\GeneratorStrategy\BaseGeneratorStrategy;
016 use ProxyManager\ProxyGenerator\LazyLoadingValueHolderGenerator;
017 use Symfony\Component\DependencyInjection\Container;
018 use Symfony\Component\DependencyInjection\ContainerInterface;
019 use Symfony\Component\DependencyInjection\Definition;
020 use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface;
021
022 /**
023 * Generates dumped PHP code of proxies via reflection.
024 *
025 * @author Marco Pivetta <ocramius@gmail.com>
026 */
027 class ProxyDumper implements DumperInterface
028 {
029 /**
030 * @var string
031 */
032 private $salt;
033
034 /**
035 * @var LazyLoadingValueHolderGenerator
036 */
037 private $proxyGenerator;
038
039 /**
040 * @var BaseGeneratorStrategy
041 */
042 private $classGenerator;
043
044 /**
045 * Constructor.
046 *
047 * @param string $salt
048 */
049 public function __construct($salt = '')
050 {
051 $this->salt = $salt;
052 $this->proxyGenerator = new LazyLoadingValueHolderGenerator();
053 $this->classGenerator = new BaseGeneratorStrategy();
054 }
055
056 /**
057 * {@inheritdoc}
058 */
059 public function isProxyCandidate(Definition $definition)
060 {
061 return $definition->isLazy() && ($class = $definition->getClass()) && class_exists($class);
062 }
063
064 /**
065 * {@inheritdoc}
066 */
067 public function getProxyFactoryCode(Definition $definition, $id)
068 {
069 $instantiation = 'return';
070
071 if ($definition->isShared()) {
072 $instantiation .= " \$this->services['$id'] =";
073
074 if (defined('Symfony\Component\DependencyInjection\ContainerInterface::SCOPE_CONTAINER') && ContainerInterface::SCOPE_CONTAINER !== $scope = $definition->getScope(false)) {
075 $instantiation .= " \$this->scopedServices['$scope']['$id'] =";
076 }
077 }
078
079 $methodName = 'get'.Container::camelize($id).'Service';
080 $proxyClass = $this->getProxyClassName($definition);
081
082 $generatedClass = $this->generateProxyClass($definition);
083
084 $constructorCall = $generatedClass->hasMethod('staticProxyConstructor')
085 ? $proxyClass.'::staticProxyConstructor'
086 : 'new '.$proxyClass;
087
088 return <<<EOF
089 if (\$lazyLoad) {
090 \$container = \$this;
091
092 $instantiation $constructorCall(
093 function (&\$wrappedInstance, \ProxyManager\Proxy\LazyLoadingInterface \$proxy) use (\$container) {
094 \$wrappedInstance = \$container->$methodName(false);
095
096 \$proxy->setProxyInitializer(null);
097
098 return true;
099 }
100 );
101 }
102
103
104 EOF;
105
106 }
107
108 /**
109 * {@inheritdoc}
110 */
111 public function getProxyCode(Definition $definition)
112 {
113 return $this->classGenerator->generate($this->generateProxyClass($definition));
114 }
115
116 /**
117 * Produces the proxy class name for the given definition.
118 *
119 * @param Definition $definition
120 *
121 * @return string
122 */
123 private function getProxyClassName(Definition $definition)
124 {
125 return str_replace('\\', '', $definition->getClass()).'_'.spl_object_hash($definition).$this->salt;
126 }
127
128 /**
129 * @param Definition $definition
130 *
131 * @return ClassGenerator
132 */
133 private function generateProxyClass(Definition $definition)
134 {
135 $generatedClass = new ClassGenerator($this->getProxyClassName($definition));
136
137 $this->proxyGenerator->generate(new \ReflectionClass($definition->getClass()), $generatedClass);
138
139 return $generatedClass;
140 }
141 }
142