TreeValue
typedef TreeValue Node;
typedef TreeValue TreeNode;
TreeValue* treeValue = fIndexer->Cookie();
TreeValue* treeValue = (TreeValue*)node->IndexCookieForAttribute(Name());
TreeValue* oldTreeValue
= (TreeValue*)oldAttributes.IndexCookieForAttribute(Name());
TreeValue* treeValue = (TreeValue*)node->IndexCookieForAttribute(Name());
typedef TreeValue Value;