function ItemList::rekey

Renumbers the items in the list.

Parameters

int $from_index: Optionally, the index at which to start the renumbering, if it is known that items before that can safely be skipped (for example, when removing an item at a given index).

File

core/lib/Drupal/Core/TypedData/Plugin/DataType/ItemList.php, line 153

Class

ItemList

A generic list class.

Namespace

Code

protected function rekey($from_index = 0) {
    // Re-key the list to maintain consecutive indexes.
    $this->list = array_values($this->list);
    // Each item holds its own index as a "name", it needs to be updated
    // according to the new list indexes.
    for ($i = $from_index; $i < count($this->list); $i++) {
        $this->list[$i]
            ->setContext($i, $this);
    }
}