/**
  * Export this interface definition to the given parent DOMElement.
  *
  * @param \DOMElement        $parent    Element to augment.
  * @param InterfaceReflector $interface Element to log export.
  * @param \DOMElement        $child     if supplied this element will be
  *     augmented instead of freshly added.
  *
  * @return void
  */
 public function export(\DOMElement $parent, $interface, \DOMElement $child = null)
 {
     if ($child === null) {
         $child = new \DOMElement('interface');
         $parent->appendChild($child);
     }
     $child->setAttribute('namespace', $interface->getNamespace());
     $child->setAttribute('line', $interface->getLineNumber());
     $short_name = method_exists($interface, 'getShortName') ? $interface->getShortName() : $interface->getName();
     $child->appendChild(new \DOMElement('name', $short_name));
     $child->appendChild(new \DOMElement('full_name', $interface->getName()));
     foreach ($interface->getParentInterfaces() as $parent_interface) {
         $child->appendChild(new \DOMElement('extends', $parent_interface));
     }
     $object = new DocBlockExporter();
     $object->export($child, $interface);
     foreach ($interface->getConstants() as $constant) {
         $object = new ConstantExporter();
         $constant->setDefaultPackageName($interface->getDefaultPackageName());
         $object->export($child, $constant);
     }
     foreach ($interface->getProperties() as $property) {
         $object = new PropertyExporter();
         $property->setDefaultPackageName($interface->getDefaultPackageName());
         $object->export($child, $property);
     }
     foreach ($interface->getMethods() as $method) {
         $object = new MethodExporter();
         $method->setDefaultPackageName($interface->getDefaultPackageName());
         $object->export($child, $method);
     }
 }