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  1. //===- OptSpecifier.h - Option Specifiers -----------------------*- C++ -*-===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===----------------------------------------------------------------------===//
  8.  
  9. #ifndef LLVM_OPTION_OPTSPECIFIER_H
  10. #define LLVM_OPTION_OPTSPECIFIER_H
  11.  
  12. namespace llvm {
  13. namespace opt {
  14.  
  15. class Option;
  16.  
  17. /// OptSpecifier - Wrapper class for abstracting references to option IDs.
  18. class OptSpecifier {
  19.   unsigned ID = 0;
  20.  
  21. public:
  22.   OptSpecifier() = default;
  23.   explicit OptSpecifier(bool) = delete;
  24.   /*implicit*/ OptSpecifier(unsigned ID) : ID(ID) {}
  25.   /*implicit*/ OptSpecifier(const Option *Opt);
  26.  
  27.   bool isValid() const { return ID != 0; }
  28.  
  29.   unsigned getID() const { return ID; }
  30.  
  31.   bool operator==(OptSpecifier Opt) const { return ID == Opt.getID(); }
  32.   bool operator!=(OptSpecifier Opt) const { return !(*this == Opt); }
  33. };
  34.  
  35. } // end namespace opt
  36. } // end namespace llvm
  37.  
  38. #endif // LLVM_OPTION_OPTSPECIFIER_H
  39.