// does NOT do any checking!
public int AddRef(NomadData data, long ptr)
{
var index = m_Refs.Count;
m_Refs.Add(data);
m_Ptrs.Add(ptr);
return(index);
}
public long GetPtr(NomadData data)
{
var idx = GetIdx(data);
if (idx != -1)
{
return(m_Ptrs[idx]);
}
return(-1);
}
public static int Register(NomadData data, out long hash)
{
hash = GenerateHashKey(data);
var idx = -1;
if (Keys.Contains(hash))
{
idx = Keys.IndexOf(hash);
}
else
{
idx = Keys.Count;
Keys.Add(hash);
Refs.Add(data);
}
return(idx);
}
static long GenerateHashKey(NomadData data)
{
var id = data.Id;
var hash = (long)id.GetHashCode();
if (data.IsAttribute)
{
var attrData = ((NomadValue)data).Data;
hash *= attrData.GetHashCode();
hash ^= attrData.Size;
}
if (data.IsObject)
{
var obj = ((NomadObject)data);
var key = 12345L;
var size = 0;
foreach (var attr in obj.Attributes)
{
var attrData = attr.Data;
key += attrData.GetHashCode();
size += attrData.Size;
}
foreach (var child in obj.Children)
{
key ^= GenerateHashKey(child);
}
hash *= key;
hash ^= (size * obj.Children.Count);
}
return(hash);
}
public static int Find(NomadData data)
{
var hash = GenerateHashKey(data);
return(Keys.IndexOf(hash));
}
public NomadReference(NomadData data)
{
Index = NomadCache.Register(data, out long hash);
Hash = hash;
}
public int GetIdx(NomadData data)
{
return(m_Refs.IndexOf(data));
}