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- <?php
- namespace Drupal\Core\Plugin;
- use Drupal\Component\Plugin\Definition\PluginDefinitionInterface;
- use Drupal\Component\Plugin\DependentPluginInterface;
- use Drupal\Component\Plugin\PluginInspectionInterface;
- use Drupal\Core\Entity\DependencyTrait;
- use Drupal\Core\Plugin\Definition\DependentPluginDefinitionInterface;
- /**
- * Provides a trait for calculating the dependencies of a plugin.
- */
- trait PluginDependencyTrait {
- use DependencyTrait;
- /**
- * Calculates and adds dependencies of a specific plugin instance.
- *
- * Dependencies are added for the module that provides the plugin, as well
- * as any dependencies declared by the instance's calculateDependencies()
- * method, if it implements
- * \Drupal\Component\Plugin\DependentPluginInterface.
- *
- * @param \Drupal\Component\Plugin\PluginInspectionInterface $instance
- * The plugin instance.
- */
- protected function calculatePluginDependencies(PluginInspectionInterface $instance) {
- $definition = $instance->getPluginDefinition();
- if ($definition instanceof PluginDefinitionInterface) {
- $this->addDependency('module', $definition->getProvider());
- if ($definition instanceof DependentPluginDefinitionInterface && $config_dependencies = $definition->getConfigDependencies()) {
- $this->addDependencies($config_dependencies);
- }
- }
- elseif (is_array($definition)) {
- $this->addDependency('module', $definition['provider']);
- // Plugins can declare additional dependencies in their definition.
- if (isset($definition['config_dependencies'])) {
- $this->addDependencies($definition['config_dependencies']);
- }
- }
- // If a plugin is dependent, calculate its dependencies.
- if ($instance instanceof DependentPluginInterface && $plugin_dependencies = $instance->calculateDependencies()) {
- $this->addDependencies($plugin_dependencies);
- }
- }
- }
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