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- 06.01.2017
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ResolveDefinitionTemplatesPass.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\Component\DependencyInjection\Compiler;
013
014 use Symfony\Component\DependencyInjection\Definition;
015 use Symfony\Component\DependencyInjection\DefinitionDecorator;
016 use Symfony\Component\DependencyInjection\ContainerBuilder;
017 use Symfony\Component\DependencyInjection\Exception\RuntimeException;
018
019 /**
020 * This replaces all DefinitionDecorator instances with their equivalent fully
021 * merged Definition instance.
022 *
023 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
024 * @author Nicolas Grekas <p@tchwork.com>
025 */
026 class ResolveDefinitionTemplatesPass implements CompilerPassInterface
027 {
028 private $compiler;
029 private $formatter;
030 private $currentId;
031
032 /**
033 * Process the ContainerBuilder to replace DefinitionDecorator instances with their real Definition instances.
034 *
035 * @param ContainerBuilder $container
036 */
037 public function process(ContainerBuilder $container)
038 {
039 $this->compiler = $container->getCompiler();
040 $this->formatter = $this->compiler->getLoggingFormatter();
041
042 $container->setDefinitions($this->resolveArguments($container, $container->getDefinitions(), true));
043 }
044
045 /**
046 * Resolves definition decorator arguments.
047 *
048 * @param ContainerBuilder $container The ContainerBuilder
049 * @param array $arguments An array of arguments
050 * @param bool $isRoot If we are processing the root definitions or not
051 *
052 * @return array
053 */
054 private function resolveArguments(ContainerBuilder $container, array $arguments, $isRoot = false)
055 {
056 foreach ($arguments as $k => $argument) {
057 if ($isRoot) {
058 // yes, we are specifically fetching the definition from the
059 // container to ensure we are not operating on stale data
060 $arguments[$k] = $argument = $container->getDefinition($k);
061 $this->currentId = $k;
062 }
063 if (is_array($argument)) {
064 $arguments[$k] = $this->resolveArguments($container, $argument);
065 } elseif ($argument instanceof Definition) {
066 if ($argument instanceof DefinitionDecorator) {
067 $arguments[$k] = $argument = $this->resolveDefinition($container, $argument);
068 if ($isRoot) {
069 $container->setDefinition($k, $argument);
070 }
071 }
072 $argument->setArguments($this->resolveArguments($container, $argument->getArguments()));
073 $argument->setMethodCalls($this->resolveArguments($container, $argument->getMethodCalls()));
074 $argument->setProperties($this->resolveArguments($container, $argument->getProperties()));
075
076 $configurator = $this->resolveArguments($container, array($argument->getConfigurator()));
077 $argument->setConfigurator($configurator[0]);
078
079 $factory = $this->resolveArguments($container, array($argument->getFactory()));
080 $argument->setFactory($factory[0]);
081 }
082 }
083
084 return $arguments;
085 }
086
087 /**
088 * Resolves the definition.
089 *
090 * @param ContainerBuilder $container The ContainerBuilder
091 * @param DefinitionDecorator $definition
092 *
093 * @return Definition
094 *
095 * @throws \RuntimeException When the definition is invalid
096 */
097 private function resolveDefinition(ContainerBuilder $container, DefinitionDecorator $definition)
098 {
099 if (!$container->hasDefinition($parent = $definition->getParent())) {
100 throw new RuntimeException(sprintf('The parent definition "%s" defined for definition "%s" does not exist.', $parent, $this->currentId));
101 }
102
103 $parentDef = $container->getDefinition($parent);
104 if ($parentDef instanceof DefinitionDecorator) {
105 $id = $this->currentId;
106 $this->currentId = $parent;
107 $parentDef = $this->resolveDefinition($container, $parentDef);
108 $container->setDefinition($parent, $parentDef);
109 $this->currentId = $id;
110 }
111
112 $this->compiler->addLogMessage($this->formatter->formatResolveInheritance($this, $this->currentId, $parent));
113 $def = new Definition();
114
115 // merge in parent definition
116 // purposely ignored attributes: scope, abstract, tags
117 $def->setClass($parentDef->getClass());
118 $def->setArguments($parentDef->getArguments());
119 $def->setMethodCalls($parentDef->getMethodCalls());
120 $def->setProperties($parentDef->getProperties());
121 $def->setAutowiringTypes($parentDef->getAutowiringTypes());
122 if ($parentDef->getFactoryClass(false)) {
123 $def->setFactoryClass($parentDef->getFactoryClass(false));
124 }
125 if ($parentDef->getFactoryMethod(false)) {
126 $def->setFactoryMethod($parentDef->getFactoryMethod(false));
127 }
128 if ($parentDef->getFactoryService(false)) {
129 $def->setFactoryService($parentDef->getFactoryService(false));
130 }
131 if ($parentDef->isDeprecated()) {
132 $def->setDeprecated(true, $parentDef->getDeprecationMessage('%service_id%'));
133 }
134 $def->setFactory($parentDef->getFactory());
135 $def->setConfigurator($parentDef->getConfigurator());
136 $def->setFile($parentDef->getFile());
137 $def->setPublic($parentDef->isPublic());
138 $def->setLazy($parentDef->isLazy());
139 $def->setAutowired($parentDef->isAutowired());
140
141 // overwrite with values specified in the decorator
142 $changes = $definition->getChanges();
143 if (isset($changes['class'])) {
144 $def->setClass($definition->getClass());
145 }
146 if (isset($changes['factory_class'])) {
147 $def->setFactoryClass($definition->getFactoryClass(false));
148 }
149 if (isset($changes['factory_method'])) {
150 $def->setFactoryMethod($definition->getFactoryMethod(false));
151 }
152 if (isset($changes['factory_service'])) {
153 $def->setFactoryService($definition->getFactoryService(false));
154 }
155 if (isset($changes['factory'])) {
156 $def->setFactory($definition->getFactory());
157 }
158 if (isset($changes['configurator'])) {
159 $def->setConfigurator($definition->getConfigurator());
160 }
161 if (isset($changes['file'])) {
162 $def->setFile($definition->getFile());
163 }
164 if (isset($changes['public'])) {
165 $def->setPublic($definition->isPublic());
166 }
167 if (isset($changes['lazy'])) {
168 $def->setLazy($definition->isLazy());
169 }
170 if (isset($changes['deprecated'])) {
171 $def->setDeprecated($definition->isDeprecated(), $definition->getDeprecationMessage('%service_id%'));
172 }
173 if (isset($changes['autowire'])) {
174 $def->setAutowired($definition->isAutowired());
175 }
176 if (isset($changes['decorated_service'])) {
177 $decoratedService = $definition->getDecoratedService();
178 if (null === $decoratedService) {
179 $def->setDecoratedService($decoratedService);
180 } else {
181 $def->setDecoratedService($decoratedService[0], $decoratedService[1], $decoratedService[2]);
182 }
183 }
184
185 // merge arguments
186 foreach ($definition->getArguments() as $k => $v) {
187 if (is_numeric($k)) {
188 $def->addArgument($v);
189 continue;
190 }
191
192 if (0 !== strpos($k, 'index_')) {
193 throw new RuntimeException(sprintf('Invalid argument key "%s" found.', $k));
194 }
195
196 $index = (int) substr($k, strlen('index_'));
197 $def->replaceArgument($index, $v);
198 }
199
200 // merge properties
201 foreach ($definition->getProperties() as $k => $v) {
202 $def->setProperty($k, $v);
203 }
204
205 // append method calls
206 if (count($calls = $definition->getMethodCalls()) > 0) {
207 $def->setMethodCalls(array_merge($def->getMethodCalls(), $calls));
208 }
209
210 // merge autowiring types
211 foreach ($definition->getAutowiringTypes() as $autowiringType) {
212 $def->addAutowiringType($autowiringType);
213 }
214
215 // these attributes are always taken from the child
216 $def->setAbstract($definition->isAbstract());
217 $def->setScope($definition->getScope(false), false);
218 $def->setShared($definition->isShared());
219 $def->setTags($definition->getTags());
220
221 return $def;
222 }
223 }
224