1//===- OptSpecifier.h - Option Specifiers -----------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLVM_OPTION_OPTSPECIFIER_H
11#define LLVM_OPTION_OPTSPECIFIER_H
12
13namespace llvm {
14namespace opt {
15
16class Option;
17
18/// OptSpecifier - Wrapper class for abstracting references to option IDs.
19class OptSpecifier {
20  unsigned ID = 0;
21
22public:
23  OptSpecifier() = default;
24  explicit OptSpecifier(bool) = delete;
25  /*implicit*/ OptSpecifier(unsigned ID) : ID(ID) {}
26  /*implicit*/ OptSpecifier(const Option *Opt);
27
28  bool isValid() const { return ID != 0; }
29
30  unsigned getID() const { return ID; }
31
32  bool operator==(OptSpecifier Opt) const { return ID == Opt.getID(); }
33  bool operator!=(OptSpecifier Opt) const { return !(*this == Opt); }
34};
35
36} // end namespace opt
37} // end namespace llvm
38
39#endif // LLVM_OPTION_OPTSPECIFIER_H
40