public ImmutableTreeSet <TValue> AddOrUpdate(TValue value)
{
Node newNode;
TryAdd(value, value, out newNode, AddOperation.AddOrUpdate);
var newTreeMap = new ImmutableTreeSet <TValue>(newNode);
return(newTreeMap);
}
public bool TryRemove(TValue value, out ImmutableTreeSet <TValue> newMap)
{
Node newNode;
if (TryRemove(value, out newNode))
{
newMap = newNode == null ? Empty : new ImmutableTreeSet <TValue>(newNode);
return(true);
}
newMap = this;
return(false);
}
public bool TryAdd(TValue value, out ImmutableTreeSet <TValue> newTreeMap)
{
Node newNode;
var couldAdd = TryAdd(value, value, out newNode, AddOperation.AddOnlyUnique);
if (!couldAdd)
{
newTreeMap = this;
return(false);
}
newTreeMap = new ImmutableTreeSet <TValue>(newNode);
return(true);
}