public ImmPriorityQueue <T, TPriority> Add(T item)
{
var priority = Appraise(item);
var list = Inner.TryGet(priority);
var newList = list.IsSome ? list.Value.AddLast(item) : ImmList.Of(item);
return(Wrap(Inner.Set(priority, newList)));
}
static void Main(string[] args)
{
ImmList <int> list = ImmList.Of(0, 1, 2);
//access to the ends:
list = list.AddLast(3).AddFirst(-1);
list = list.AddLastRange(new[] {
4, 5, 6
});
list = list.AddFirstRange(list);
list = list.RemoveLast().RemoveFirst();
//indexing:
int firstItem = list[0];
list = list.Update(0, firstItem + 1);
list = list.Insert(0, firstItem);
//slices:
ImmList <int> sublist = list[1, 3]; //slices in range [1, 3], inclusive.
ImmSet <int> set = ImmSet.Of(0, 1, 2);
//add and remove:
set = set.Add(3).Remove(0);
//set-theoretic operations:
set = set.Union(new[] {
5, 6
});
set = set.Except(new[] {
5
});
set = set.Intersect(set);
ImmMap <int, int> map = ImmMap.Of(Kvp.Of(1, 1), Kvp.Of(2, 2), Kvp.Of(3, 3));
map = map.Add(4, 4);
map = map.Remove(2);
int value = map[1];
}