1249259Sdim//===--- OptSpecifier.h - Option Specifiers ---------------------*- C++ -*-===//
2249259Sdim//
3249259Sdim//                     The LLVM Compiler Infrastructure
4249259Sdim//
5249259Sdim// This file is distributed under the University of Illinois Open Source
6249259Sdim// License. See LICENSE.TXT for details.
7249259Sdim//
8249259Sdim//===----------------------------------------------------------------------===//
9249259Sdim
10249259Sdim#ifndef LLVM_OPTION_OPTSPECIFIER_H
11249259Sdim#define LLVM_OPTION_OPTSPECIFIER_H
12249259Sdim
13249259Sdimnamespace llvm {
14249259Sdimnamespace opt {
15249259Sdim  class Option;
16249259Sdim
17249259Sdim  /// OptSpecifier - Wrapper class for abstracting references to option IDs.
18249259Sdim  class OptSpecifier {
19249259Sdim    unsigned ID;
20249259Sdim
21249259Sdim  private:
22249259Sdim    explicit OptSpecifier(bool) LLVM_DELETED_FUNCTION;
23249259Sdim
24249259Sdim  public:
25249259Sdim    OptSpecifier() : ID(0) {}
26249259Sdim    /*implicit*/ OptSpecifier(unsigned _ID) : ID(_ID) {}
27249259Sdim    /*implicit*/ OptSpecifier(const Option *Opt);
28249259Sdim
29249259Sdim    bool isValid() const { return ID != 0; }
30249259Sdim
31249259Sdim    unsigned getID() const { return ID; }
32249259Sdim
33249259Sdim    bool operator==(OptSpecifier Opt) const { return ID == Opt.getID(); }
34249259Sdim    bool operator!=(OptSpecifier Opt) const { return !(*this == Opt); }
35249259Sdim  };
36249259Sdim}
37249259Sdim}
38249259Sdim
39249259Sdim#endif
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