/// <summary>
/// Adds an object.
/// </summary>
/// <param name="o"></param>
/// <returns>The object's ID. IDs are unique within any any given object type but not across types.</returns>
public int Add(object o)
{
if (o == null)
{
return(-1);
}
var type = o.GetType();
if (!KnownTypes.ContainsKey(type.AssemblyQualifiedName))
{
KnownTypes.Add(type.AssemblyQualifiedName, type);
}
if (!KnownObjects.ContainsKey(type))
{
KnownObjects.Add(type, new List <object>());
}
// if (!KnownObjects[type].Contains(o))
KnownObjects[type].Add(o);
if (!KnownIDs.ContainsKey(type))
{
KnownIDs.Add(type, new SafeDictionary <object, int>());
}
var id = KnownObjects[type].Count - 1;
KnownIDs[type].Add(o, id);
AddProperties(type);
return(id);
}
/// <summary>
/// Gets the ID for an object, or null if the object is unknown.
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public int?GetID(object o)
{
if (o == null)
{
return(null);
}
var type = o.GetType();
if (KnownIDs.ContainsKey(type) && KnownIDs[type].ContainsKey(o))
{
return(KnownIDs[type][o]);
}
return(null);
}