public CustomList()
{
_head = new CustomNode <TData>();
_tail = new CustomNode <TData>();
_head.Next = _tail;
_tail.Prev = _head;
_enumerator = new Enumerator(this);
}
public bool MoveNext()
{
if (_current.Next == _list._tail)
{
return(false);
}
_current = _current.Next;
return(true);
}
public CustomList <TData> InsertAfter(CustomNode <TData> after, TData val)
{
var node = new CustomNode <TData> {
Value = val,
Next = after.Next,
Prev = after
};
after.Next.Prev = node;
after.Next = node;
return(this);
}
public CustomList <TData> PushFront(TData val)
{
var node = new CustomNode <TData> {
Value = val,
Prev = _head,
Next = _head.Next
};
_head.Next.Prev = node;
_head.Next = node;
return(this);
}
public CustomList <TData> PushBack(TData val)
{
var node = new CustomNode <TData> {
Value = val,
Prev = _tail.Prev,
Next = _tail
};
_tail.Prev.Next = node;
_tail.Prev = node;
return(this);
}
public CustomList <TData> InsertBefore(CustomNode <TData> before, TData val)
{
var node = new CustomNode <TData> {
Value = val,
Next = before,
Prev = before.Prev
};
before.Prev.Next = node;
before.Prev = node;
return(this);
}
public void Reset()
{
_current = _list._head;
}
public Enumerator(CustomList <TData> list)
{
_list = list;
_current = list._head;
}
public CustomList <TData> RemoveBetween(CustomNode <TData> begin, CustomNode <TData> end)
{
begin.Next = end;
end.Prev = begin;
return(this);
}