public static List <T> Rent()
{
if (FreeLists.Count == 0)
{
return(new List <T>());
}
var lastListIndex = FreeLists.Count - 1;
var lastList = FreeLists[lastListIndex];
FreeLists.RemoveAt(lastListIndex);
FreeListsSet.Remove(lastList);
lastList.Clear();
return(lastList);
}
public static void Return([NotNull] List <T> list)
{
if (list == null)
{
throw new ArgumentNullException(nameof(list));
}
list.Clear();
if (FreeListsSet.Contains(list))
{
return;
}
FreeLists.Add(list);
FreeListsSet.Add(list);
}