public static VList <LNode> WithSpliced(this VList <LNode> list, int index, LNode node, Symbol listName = null)
{
if (node.Calls(listName ?? CodeSymbols.Splice))
{
return(list.InsertRange(index, node.Args));
}
else
{
return(list.Insert(index, node));
}
}
public void TestEmptyListOperations()
{
VList<int> a = new VList<int>();
VList<int> b = new VList<int>();
a.AddRange(b);
a.InsertRange(0, b);
a.RemoveRange(0, 0);
Assert.That(!a.Remove(0));
Assert.That(a.IsEmpty);
a.Add(1);
b.AddRange(a);
ExpectList(b, 1);
b.RemoveAt(0);
Assert.That(b.IsEmpty);
b.InsertRange(0, a);
ExpectList(b, 1);
b.RemoveRange(0, 1);
Assert.That(b.IsEmpty);
b.Insert(0, a[0]);
ExpectList(b, 1);
b.Remove(a.Last);
Assert.That(b.IsEmpty);
AssertThrows<InvalidOperationException>(delegate() { a.NextIn(b); });
}