LibraryDiscoveryCollector::getLibraryDefinitions

protected LibraryDiscoveryCollector::getLibraryDefinitions($extension)

protected function getLibraryDefinitions($extension) {
  $libraries = $this->discoveryParser->buildByExtension($extension);
  foreach ($libraries as $name => $definition) {
    // Handle libraries that are marked for override or removal.
    // @see \Drupal\Core\Asset\LibraryDiscoveryParser::applyLibrariesOverride()
    if (isset($definition['override'])) {
      if ($definition['override'] === FALSE) {
        // Remove the library definition if FALSE is given.
        unset($libraries[$name]);
      }
      else {
        // Otherwise replace with existing library definition if it exists.
        // Throw an exception if it doesn't.
        list($replacement_extension, $replacement_name) = explode('/', $definition['override']);
        $replacement_definition = $this->get($replacement_extension);
        if (isset($replacement_definition[$replacement_name])) {
          $libraries[$name] = $replacement_definition[$replacement_name];
        }
        else {
          throw new InvalidLibrariesOverrideSpecificationException(sprintf('The specified library %s does not exist.', $definition['override']));
        }
      }
    }
    else {
      // If libraries are not overridden, then apply libraries-extend.
      $libraries[$name] = $this->applyLibrariesExtend($extension, $name, $definition);
    }
  }
  return $libraries;
}