Clears a plugin.
Overrides PluginBase::destroy
public function destroy() {
parent::destroy();
foreach ($this->handlers as $type => $handlers) {
foreach ($handlers as $id => $handler) {
if (is_object($handler)) {
$this->handlers[$type][$id]
->destroy();
}
}
}
if (isset($this->default_display)) {
unset($this->default_display);
}
foreach ($this->extender as $extender) {
$extender
->destroy();
}
}