Flags.h revision 22add6ff3426df1a85089fe6a6e1597ee3b6f300 
1//===- Flags.h ------------------------------------------------------------===//
2//
3//                     The MCLinker Project
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9#ifndef MCLD_FLAGS_H
10#define MCLD_FLAGS_H
11#ifdef ENABLE_UNITTEST
12#include <gtest.h>
13#endif
14
15namespace mcld
16{
17
18template<typename Enum>
19class Flags
20{
21public:
22  typedef Enum enum_type;
23
24public:
25  Flags(const Flags& pOther)
26  : m_Data(pOther.m_Data) {}
27
28  Flags(Enum pFlag)
29  : m_Data(pFlag) {}
30
31  Flags(unsigned int pFlag = 0x0)
32  : m_Data(pFlag) {}
33
34  operator unsigned int () const
35  { return m_Data; }
36
37  bool operator! () const
38  { return (m_Data == 0x0); }
39
40  Flags operator& (int pMask ) const
41  { return Flags(m_Data & pMask); }
42
43  Flags operator& (unsigned int pMask ) const
44  { return Flags(m_Data & pMask); }
45
46  Flags operator& (Enum pMask ) const
47  { return Flags(m_Data & pMask); }
48
49  Flags& operator&= (unsigned int pMask ) {
50    m_Data &= pMask;
51    return *this;
52  }
53
54  Flags& operator=(Flags pOther) {
55    m_Data = pOther.m_Data;
56    return *this;
57  }
58
59  Flags operator^ (Flags pOther) const
60  { return Flags(m_Data^pOther.m_Data); }
61
62  Flags operator^ (Enum pOther) const
63  { return Flags(m_Data^pOther); }
64
65  Flags& operator^= (Flags pOther) {
66    m_Data ^= pOther.m_Data;
67    return *this;
68  }
69
70  Flags& operator^= (Enum pOther) {
71    m_Data ^= pOther;
72    return *this;
73  }
74
75  Flags operator| (Flags pOther) const
76  { return Flags(m_Data | pOther.m_Data); }
77
78  Flags operator| (Enum pOther ) const
79  { return Flags(m_Data | pOther); }
80
81  Flags& operator|= (Flags pOther) {
82    m_Data |= pOther.m_Data;
83    return *this;
84  }
85
86  Flags& operator|= (Enum pOther) {
87    m_Data |= pOther;
88    return *this;
89  }
90
91  Flags operator~ () const
92  { return Flags(~m_Data); }
93
94private:
95  unsigned int m_Data;
96};
97
98} // namespace of mcld
99
100#endif
101
102