363     if (ParentStack.empty())  in addParent()
378       if (const auto *D = ParentStack.back().get<Decl>())  in addParent()
380       else if (const auto *S = ParentStack.back().get<Stmt>())  in addParent()
383         NodeOrVector = new DynTypedNode(ParentStack.back());  in addParent()
397       bool Found = ParentStack.back().getMemoizationData() &&  in addParent()
398                    llvm::is_contained(*Vector, ParentStack.back());  in addParent()
400         Vector->push_back(ParentStack.back());  in addParent()
414     ParentStack.push_back(createDynTypedNode(Node));  in TraverseNode()
416     ParentStack.pop_back();  in TraverseNode()
452     ParentStack.push_back(DynTypedNode::create(*StmtNode));  in dataTraverseStmtPre()
456     ParentStack.pop_back();  in dataTraverseStmtPost()
461   llvm::SmallVector<DynTypedNode, 16> ParentStack;  member in ParentMapContext::ParentMap::ASTVisitor