//===--- tools/extra/clang-rename/RenamingAction.h - Clang rename tool ----===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief Provides an action to rename every symbol at a point.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_RENAME_RENAMING_ACTION_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_RENAME_RENAMING_ACTION_H

#include "clang/Tooling/Refactoring.h"

namespace clang {
class ASTConsumer;
class CompilerInstance;

namespace rename {

class RenamingAction {
public:
  RenamingAction(const std::vector<std::string> &NewNames,
                 const std::vector<std::string> &PrevNames,
                 const std::vector<std::vector<std::string>> &USRList,
                 std::map<std::string, tooling::Replacements> &FileToReplaces,
                 bool PrintLocations = false)
      : NewNames(NewNames), PrevNames(PrevNames), USRList(USRList),
        FileToReplaces(FileToReplaces), PrintLocations(PrintLocations) {}

  std::unique_ptr<ASTConsumer> newASTConsumer();

private:
  const std::vector<std::string> &NewNames, &PrevNames;
  const std::vector<std::vector<std::string>> &USRList;
  std::map<std::string, tooling::Replacements> &FileToReplaces;
  bool PrintLocations;
};

/// Rename all symbols identified by the given USRs.
class QualifiedRenamingAction {
public:
  QualifiedRenamingAction(
      const std::vector<std::string> &NewNames,
      const std::vector<std::vector<std::string>> &USRList,
      std::map<std::string, tooling::Replacements> &FileToReplaces)
      : NewNames(NewNames), USRList(USRList), FileToReplaces(FileToReplaces) {}

  std::unique_ptr<ASTConsumer> newASTConsumer();

private:
  /// New symbol names.
  const std::vector<std::string> &NewNames;

  /// A list of USRs. Each element represents USRs of a symbol being renamed.
  const std::vector<std::vector<std::string>> &USRList;

  /// A file path to replacements map.
  std::map<std::string, tooling::Replacements> &FileToReplaces;
};

} // namespace rename
} // namespace clang

#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_RENAME_RENAMING_ACTION_H