public Tuple(Tuple tuple)
{
if (tuple == null) throw new ArgumentNullException(nameof(tuple), "null initialize tuple");
_tuple = new object[tuple.Count];
tuple.GetArray().CopyTo(_tuple, 0);
}
public override object Evaluate(Environment env)
{
Tuple tuple = new Tuple(Count);
int count = 0;
foreach (IAstNode node in this) tuple[count++] = node.Evaluate(env);
return tuple;
}
public static Tuple Add(object left, Tuple right)
{
if (right == null) throw new ArgumentNullException(nameof(right), "null right value");
Tuple result = new Tuple(right.Count + 1);
result[0] = left;
Array.Copy(right.GetArray(), 0, result.GetArray(), 1, right.Count);
return result;
}
public static object GetElement(Tuple tuple, int index)
{
if (tuple == null) throw new ArgumentNullException(nameof(tuple), "null tuple");
return tuple[index];
}
public static string TupleToString(Tuple tuple)
{
return tuple == null ? "" : new string(Array.ConvertAll(tuple.GetArray(), new Converter<object, char>(x => (char)x)));
}
public static object[] TupleToArray(Tuple tuple)
{
if (tuple == null) throw new ArgumentNullException(nameof(tuple), "null tuple");
return tuple.GetArray();
}
public static Tuple Add(Tuple left, object right)
{
if (left == null) throw new ArgumentNullException(nameof(left), "null left value");
Tuple result = new Tuple(left.Count + 1);
left.GetArray().CopyTo(result.GetArray(), 0);
result[left.Count] = right;
return result;
}
public static Tuple Add(Tuple left, Tuple right)
{
if (left == null) throw new ArgumentNullException(nameof(left), "null left value");
if (right == null) throw new ArgumentNullException(nameof(right), "null right value");
Tuple result = new Tuple(left.Count + right.Count);
Array.Copy(left.GetArray(), 0, result.GetArray(), 0, left.Count);
Array.Copy(right.GetArray(), 0, result.GetArray(), left.Count, right.Count);
return result;
}
