PreprocessorOptions.h

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//===- PreprocessorOptions.h ------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//
// Coding style: https://mlir.llvm.org/getting_started/DeveloperGuide/
//
//===----------------------------------------------------------------------===//
 
#ifndef FORTRAN_FRONTEND_PREPROCESSOROPTIONS_H
#define FORTRAN_FRONTEND_PREPROCESSOROPTIONS_H
 
#include "llvm/ADT/StringRef.h"
 
namespace Fortran::frontend {
 
enum class PPMacrosFlag : uint8_t {
  Unknown,
 
  Include,
  Exclude
};
 
struct PreprocessorOptions {
  PreprocessorOptions() {}
 
  std::vector<std::pair<std::string, /*isUndef*/ bool>> macros;
 
  // Search directories specified by the user with -I
  // TODO: When adding support for more options related to search paths,
  // consider collecting them in a separate aggregate. For now we keep it here
  // as there is no point creating a class for just one field.
  std::vector<std::string> searchDirectoriesFromDashI;
  // Search directories specified by the user with -fintrinsic-modules-path
  std::vector<std::string> searchDirectoriesFromIntrModPath;
 
  PPMacrosFlag macrosFlag = PPMacrosFlag::Unknown;
 
  // -P: Suppress #line directives in -E output
  bool noLineDirectives{false};
 
  // -fno-reformat: Emit cooked character stream as -E output
  bool noReformat{false};
 
  // -fpreprocess-include-lines: Treat INCLUDE as #include for -E output
  bool preprocessIncludeLines{false};
 
  // -dM: Show macro definitions with -dM -E
  bool showMacros{false};
 
  void addMacroDef(llvm::StringRef name) {
    macros.emplace_back(std::string(name), false);
  }
 
  void addMacroUndef(llvm::StringRef name) {
    macros.emplace_back(std::string(name), true);
  }
};
 
} // namespace Fortran::frontend
 
#endif // FORTRAN_FRONTEND_PREPROCESSOROPTIONS_H