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<?php
namespace Drupal\Component\Annotation;
use Drupal\Component\Utility\NestedArray;
/**
* Defines a Plugin annotation object.
*
* Annotations in plugin classes can use this class in order to pass various
* metadata about the plugin through the parser to
* DiscoveryInterface::getDefinitions() calls. This allows the metadata
* of a class to be located with the class itself, rather than in module-based
* info hooks.
*
* @ingroup plugin_api
*
* @Annotation
*/
class Plugin implements AnnotationInterface {
/**
* The plugin definition read from the class annotation.
*
* @var array
*/
protected $definition;
/**
* Constructs a Plugin object.
*
* Builds up the plugin definition and invokes the get() method for any
* classed annotations that were used.
*/
public function __construct($values) {
$reflection = new \ReflectionClass($this);
// Only keep actual default values by ignoring NULL values.
$defaults = array_filter($reflection->getDefaultProperties(), function ($value) {
return $value !== NULL;
});
$parsed_values = $this->parse($values);
$this->definition = NestedArray::mergeDeep($defaults, $parsed_values);
}
/**
* Parses an annotation into its definition.
*
* @param array $values
* The annotation array.
*
* @return array
* The parsed annotation as a definition.
*/
protected function parse(array $values) {
$definitions = [];
foreach ($values as $key => $value) {
if ($value instanceof AnnotationInterface) {
$definitions[$key] = $value->get();
}
elseif (is_array($value)) {
$definitions[$key] = $this->parse($value);
}
else {
$definitions[$key] = $value;
}
}
return $definitions;
}
/**
* {@inheritdoc}
*/
public function get() {
return $this->definition;
}
/**
* {@inheritdoc}
*/
public function getProvider() {
return isset($this->definition['provider']) ? $this->definition['provider'] : FALSE;
}
/**
* {@inheritdoc}
*/
public function setProvider($provider) {
$this->definition['provider'] = $provider;
}
/**
* {@inheritdoc}
*/
public function getId() {
return $this->definition['id'];
}
/**
* {@inheritdoc}
*/
public function getClass() {
return $this->definition['class'];
}
/**
* {@inheritdoc}
*/
public function setClass($class) {
$this->definition['class'] = $class;
}
}