private int Read(int position, out object cr)
{
//0 indicates start of a new row
int prl = 0;
int read = 0;
var result = new TreeList(null);
TreeList current = result;
while (position < _data.Length)
{
int rl = _rls[position];
if (rl == 0 && (current.HasValues || current != result))
{
break;
}
int lmv = rl - prl;
if (lmv != 0)
{
current = current.Submerge(lmv);
}
object value = _data.GetValue(position);
current.Add(value);
read += 1;
prl = rl;
position += 1;
}
cr = result.FinalValue(_field.ClrNullableIfHasNullsType);
if (cr == null)
{
cr = Array.CreateInstance(_field.ClrNullableIfHasNullsType, 0);
}
return(read);
}
public TreeList Submerge(int depth)
{
if (depth == 0)
{
return(this);
}
if (depth > 0)
{
TreeList result = this;
while (depth-- > 0)
{
var next = new TreeList(result);
if (result._children == null)
{
result._children = new List <TreeList>();
}
if (result._values != null)
{
foreach (object v in result._values)
{
next.Add(v);
}
result._values = null;
}
result._children.Add(next);
result = next;
}
return(result);
}
TreeList r2 = this;
while (depth++ < 0)
{
r2 = r2._parent;
}
return(r2);
}
public TreeList(TreeList parent)
{
_parent = parent;
}