Method _syncItemsWithRef

src/cdk/drag-drop/directives/drop-list.ts:430–433

Syncs up the registered drag items with underlying drop list ref.

(items: DragRef[])

  /** Syncs up the registered drag items with underlying drop list ref. */
  private _syncItemsWithRef(items: DragRef[]) {
    this._latestSortedRefs = items;
    this._dropListRef.withItems(items);
  }
}