string DumpItem(NonListStackData item, int index)
{
var offset = _data.Skip(index).Sum(item1 => item1.Size.ToInt());
return "[" + index + "]-" + offset + ": " + item.Dump();
}
DataStack.DataMemento GetItemMemento(NonListStackData item, int index)
{
return new DataStack.DataMemento(item.Dump())
{
Size = item.Size.ToInt(),
Offset = _data.Skip(index).Sum(item1 => item1.Size.ToInt())
};
}