public async Task <ListNode> DeepCopy(ListNode head)
{
Debug.Assert(head.Previous == null, "Head node should be passed to this method.");
var nodePacker = new ListNodePacker();
var cloningTasks = GetAllNodes(head)
.Select(node => nodePacker.ToPackedListNode(node))
.Select(node => nodePacker.RestoreNodeAsync(node));
var clonedNodes = await Task.WhenAll(cloningTasks);
return(clonedNodes[0]);
}
public async Task <ListNode> Deserialize(Stream s)
{
var buffer = await ReadBufferFromStream(s);
var nodePacker = new ListNodePacker();
var nodesTasks = ReadPackedNodesFromBuffer(nodePacker, buffer)
.Select(node => nodePacker.RestoreNodeAsync(node));
var nodes = await Task.WhenAll(nodesTasks);
return(nodes[0]);
}