public NList Append(NList value)
{
if (value.Count > 0)
{
_List.AddRange(value._List);
}
return(this);
}
public bool TrySet <T>(T value, out NList result)
{
result = null;
if (!(Var is Var <T>))
{
return(false);
}
Var <T> var = Var as Var <T>;
T old_value = var.Value;
T new_value = value;
if (old_value.Equals(new_value))
{
return(false);
}
Var.Value = value;
result = NList.New();
result.Add(old_value);
result.Add(new_value);
return(true);
}
public static bool IsEmpty(NList list)
{
return(list == null || list == Empty);
}
public NList(NList list)
{
_List = new List <Var>();
_List.AddRange(list._List);
}