ParentMap.h

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//===--- ParentMap.h - Mappings from Stmts to their Parents -----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
//  This file defines the ParentMap class.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_CLANG_AST_PARENTMAP_H
#define LLVM_CLANG_AST_PARENTMAP_H
 
namespace clang {
class Stmt;
class Expr;
 
class ParentMap {
  void* Impl;
public:
  ParentMap(Stmt* ASTRoot);
  ~ParentMap();
 
  /// Adds and/or updates the parent/child-relations of the complete
  /// stmt tree of S. All children of S including indirect descendants are
  /// visited and updated or inserted but not the parents of S.
  void addStmt(Stmt* S);
 
  /// Manually sets the parent of \p S to \p Parent.
  ///
  /// If \p S is already in the map, this method will update the mapping.
  void setParent(const Stmt *S, const Stmt *Parent);
 
  Stmt *getParent(Stmt*) const;
  Stmt *getParentIgnoreParens(