.cpp

class ClangTidyError : tooling::Diagnostic {
public:
  ClangTidyError(StringRef CheckName, Level DiagLevel, StringRef BuildDirectory,
                 bool IsWarningAsError);

  void setIsWarningAsError(bool Value = true) {
    IsWarnErrorAndAlias.setInt(Value);
  }

  bool getIsWarningAsError() const { return IsWarnErrorAndAlias.getInt(); }

  void addAliasName(std::string Alias) {
    if (!IsWarnErrorAndAlias.getPointer())
      IsWarnErrorAndAlias.setPointer(new std::vector<std::string>());
    IsWarnErrorAndAlias.getPointer()->emplace_back(std::move(Alias));
  }

  ArrayRef<std::string> getAliasNames() const {
    if (!IsWarnErrorAndAlias.getPointer())
      return {};
    return *IsWarnErrorAndAlias.getPointer();
  }

  ~ClangTidyError() { delete IsWarnErrorAndAlias.getPointer(); }

private:
  llvm::PointerIntPair<std::vector<std::string> *, 1, bool> IsWarnErrorAndAlias;
};