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 CLANG_DRIVER_OPTSPECIFIER_H
11#define CLANG_DRIVER_OPTSPECIFIER_H
12
13#include "llvm/Support/Compiler.h"
14
15namespace clang {
16namespace driver {
17  class Option;
18
19  /// OptSpecifier - Wrapper class for abstracting references to option IDs.
20  class OptSpecifier {
21    unsigned ID;
22
23  private:
24    explicit OptSpecifier(bool) LLVM_DELETED_FUNCTION;
25
26  public:
27    OptSpecifier() : ID(0) {}
28    /*implicit*/ OptSpecifier(unsigned _ID) : ID(_ID) {}
29    /*implicit*/ OptSpecifier(const Option *Opt);
30
31    bool isValid() const { return ID != 0; }
32
33    unsigned getID() const { return ID; }
34
35    bool operator==(OptSpecifier Opt) const { return ID == Opt.getID(); }
36    bool operator!=(OptSpecifier Opt) const { return !(*this == Opt); }
37  };
38}
39}
40
41#endif
42