protected override void TypeToDefEntryMapChanged(ClassEntry <V> classEntry, Type key)
{
Object obj = classEntry.typeToDefEntryMap.Get(key);
if (obj == null)
{
classEntry.Remove(key);
return;
}
if (obj == alreadyHandled)
{
classEntry.Put(key, alreadyHandled);
return;
}
Object existingItem = classEntry.Get(key);
List <V> list = (List <V>)(existingItem == alreadyHandled ? null : existingItem);
if (list == null)
{
list = new List <V>();
classEntry.Put(key, list);
}
if (obj is DefEntry <V> )
{
V extension = ((DefEntry <V>)obj).extension;
if (!list.Contains(extension))
{
list.Add(extension);
}
return;
}
IListElem <DefEntry <V> > pointer = ((InterfaceFastList <DefEntry <V> >)obj).First;
while (pointer != null)
{
V extension = pointer.ElemValue.extension;
if (!list.Contains(extension))
{
list.Add(extension);
}
pointer = pointer.Next;
}
}
public override V GetExtension(Type key)
{
if (key == null)
{
return(default(V));
}
Object extension = this.classEntry.Get(key);
if (extension == null)
{
Object writeLock = GetWriteLock();
lock (writeLock)
{
extension = this.classEntry.Get(key);
if (extension == null)
{
ClassEntry <V> classEntry = CopyStructure();
classEntry.Put(key, alreadyHandled);
classEntry.typeToDefEntryMap.Put(key, alreadyHandled);
CheckToWeakRegisterExistingExtensions(key, classEntry);
this.classEntry = classEntry;
extension = classEntry.Get(key);
if (extension == null)
{
return(default(V));
}
}
}
}
if (Object.ReferenceEquals(extension, alreadyHandled))
{
// Already tried
return(default(V));
}
return((V)extension);
}
