class ResolveDefinitionTemplatesPass

ResolveDefinitionTemplatesPassTest.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveDefinitionTemplatesPassTest.php

class ResolveDefinitionTemplatesPass implements CompilerPassInterface {
  private $container;
  private $compiler;
  private $formatter;

  /**
   * Process the ContainerBuilder to replace DefinitionDecorator instances with their real Definition instances.
   *
   * @param ContainerBuilder $container
   */
  public function process(ContainerBuilder $container) {
    $this->container = $container;
    $this->compiler = $container
      ->getCompiler();
    $this->formatter = $this->compiler
      ->getLoggingFormatter();
    foreach (array_keys($container
      ->getDefinitions()) as $id) {

      // yes, we are specifically fetching the definition from the
      // container to ensure we are not operating on stale data
      $definition = $container
        ->getDefinition($id);
      if (!$definition instanceof DefinitionDecorator || $definition
        ->isAbstract()) {
        continue;
      }
      $this
        ->resolveDefinition($id, $definition);
    }
  }

  /**
   * Resolves the definition
   *
   * @param string              $id         The definition identifier
   * @param DefinitionDecorator $definition
   *
   * @return Definition
   */
  private function resolveDefinition($id, DefinitionDecorator $definition) {
    if (!$this->container
      ->hasDefinition($parent = $definition
      ->getParent())) {
      throw new RuntimeException(sprintf('The parent definition "%s" defined for definition "%s" does not exist.', $parent, $id));
    }
    $parentDef = $this->container
      ->getDefinition($parent);
    if ($parentDef instanceof DefinitionDecorator) {
      $parentDef = $this
        ->resolveDefinition($parent, $parentDef);
    }
    $this->compiler
      ->addLogMessage($this->formatter
      ->formatResolveInheritance($this, $id, $parent));
    $def = new Definition();

    // merge in parent definition
    // purposely ignored attributes: scope, abstract, tags
    $def
      ->setClass($parentDef
      ->getClass());
    $def
      ->setArguments($parentDef
      ->getArguments());
    $def
      ->setMethodCalls($parentDef
      ->getMethodCalls());
    $def
      ->setProperties($parentDef
      ->getProperties());
    $def
      ->setFactoryClass($parentDef
      ->getFactoryClass());
    $def
      ->setFactoryMethod($parentDef
      ->getFactoryMethod());
    $def
      ->setFactoryService($parentDef
      ->getFactoryService());
    $def
      ->setConfigurator($parentDef
      ->getConfigurator());
    $def
      ->setFile($parentDef
      ->getFile());
    $def
      ->setPublic($parentDef
      ->isPublic());

    // overwrite with values specified in the decorator
    $changes = $definition
      ->getChanges();
    if (isset($changes['class'])) {
      $def
        ->setClass($definition
        ->getClass());
    }
    if (isset($changes['factory_class'])) {
      $def
        ->setFactoryClass($definition
        ->getFactoryClass());
    }
    if (isset($changes['factory_method'])) {
      $def
        ->setFactoryMethod($definition
        ->getFactoryMethod());
    }
    if (isset($changes['factory_service'])) {
      $def
        ->setFactoryService($definition
        ->getFactoryService());
    }
    if (isset($changes['configurator'])) {
      $def
        ->setConfigurator($definition
        ->getConfigurator());
    }
    if (isset($changes['file'])) {
      $def
        ->setFile($definition
        ->getFile());
    }
    if (isset($changes['public'])) {
      $def
        ->setPublic($definition
        ->isPublic());
    }

    // merge arguments
    foreach ($definition
      ->getArguments() as $k => $v) {
      if (is_numeric($k)) {
        $def
          ->addArgument($v);
        continue;
      }
      if (0 !== strpos($k, 'index_')) {
        throw new RuntimeException(sprintf('Invalid argument key "%s" found.', $k));
      }
      $index = (int) substr($k, strlen('index_'));
      $def
        ->replaceArgument($index, $v);
    }

    // merge properties
    foreach ($definition
      ->getProperties() as $k => $v) {
      $def
        ->setProperty($k, $v);
    }

    // append method calls
    if (count($calls = $definition
      ->getMethodCalls()) > 0) {
      $def
        ->setMethodCalls(array_merge($def
        ->getMethodCalls(), $calls));
    }

    // these attributes are always taken from the child
    $def
      ->setAbstract($definition
      ->isAbstract());
    $def
      ->setScope($definition
      ->getScope());
    $def
      ->setTags($definition
      ->getTags());

    // set new definition on container
    $this->container
      ->setDefinition($id, $def);
    return $def;
  }

}