private static void SaveTuple(Pickler /*!*/ pickler, object obj)
{
Debug.Assert(obj.GetType() == typeof(object[]), "arg must be array");
Debug.Assert(!pickler.MemoContains(obj));
object[] t = (object[])obj;
byte opcode;
bool needMark = false;
int len = t.Length;
if (len == 0)
{
opcode = Opcode.EmptyTuple;
}
else if (len == 1)
{
opcode = Opcode.Tuple1;
}
else if (len == 2)
{
opcode = Opcode.Tuple2;
}
else if (len == 3)
{
opcode = Opcode.Tuple3;
}
else
{
opcode = Opcode.Tuple;
needMark = true;
}
if (needMark)
{
pickler.Write(Opcode.Mark);
}
var data = t;
for (int i = 0; i < data.Length; i++)
{
pickler.Save(data[i]);
}
if (len > 0)
{
if (pickler.MemoContains(obj))
{
// recursive tuple
for (int i = 0; i < len; i++)
{
pickler.Write(Opcode.Pop);
}
pickler.WriteGet(obj);
return;
}
pickler.Write(opcode);
pickler.Memoize(t);
pickler.WritePut(t);
}
else
{
pickler.Write(opcode);
}
}