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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 
13 #include "llvm/Support/Compiler.h"
14 
15 namespace llvm {
16 namespace opt {
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) = delete;
25 
26   public:
OptSpecifier()27     OptSpecifier() : ID(0) {}
OptSpecifier(unsigned ID)28     /*implicit*/ OptSpecifier(unsigned ID) : ID(ID) {}
29     /*implicit*/ OptSpecifier(const Option *Opt);
30 
isValid()31     bool isValid() const { return ID != 0; }
32 
getID()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