1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
//===- VersionTuple.h - Version Number Handling -----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief Defines the clang::VersionTuple class, which represents a version in
/// the form major[.minor[.subminor]].
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_BASIC_VERSIONTUPLE_H
#define LLVM_CLANG_BASIC_VERSIONTUPLE_H
#include "clang/Basic/LLVM.h"
#include "llvm/ADT/Optional.h"
#include <string>
#include <tuple>
namespace clang {
/// \brief Represents a version number in the form major[.minor[.subminor]].
class VersionTuple {
unsigned Major : 31;
unsigned Minor : 31;
unsigned Subminor : 31;
unsigned HasMinor : 1;
unsigned HasSubminor : 1;
unsigned UsesUnderscores : 1;
public:
VersionTuple()
: Major(0), Minor(0), Subminor(0), HasMinor(false), HasSubminor(false),
UsesUnderscores(false) { }
explicit VersionTuple(unsigned Major)
: Major(Major), Minor(0), Subminor(0), HasMinor(false), HasSubminor(false),
UsesUnderscores(false)
{ }
explicit VersionTuple(unsigned Major, unsigned Minor,
bool UsesUnderscores = false)
: Major(Major), Minor(Minor), Subminor(0), HasMinor(true),
HasSubminor(false), UsesUnderscores(UsesUnderscores)
{ }
explicit VersionTuple(unsigned Major, unsigned Minor, unsigned Subminor,
bool UsesUnderscores = false)
: Major(Major), Minor(Minor), Subminor(Subminor), HasMinor(true),
HasSubminor(true), UsesUnderscores(UsesUnderscores)
{ }
/// \brief Determine whether this version information is empty
/// (e.g., all version components are zero).
bool empty() const { return Major == 0 && Minor == 0 && Subminor == 0; }
/// \brief Retrieve the major version number.
unsigned getMajor() const { return Major; }
/// \brief Retrieve the minor version number, if provided.
Optional<unsigned> getMinor() const {
if (!HasMinor)
return None;
return Minor;
}
/// \brief Retrieve the subminor version number, if provided.
Optional<unsigned> getSubminor() const {
if (!HasSubminor)
return None;
return Subminor;
}
bool usesUnderscores() const {
return UsesUnderscores;
}
void UseDotAsSeparator() {
UsesUnderscores = false;
}
/// \brief Determine if two version numbers are equivalent. If not
/// provided, minor and subminor version numbers are considered to be zero.
friend bool operator==(const VersionTuple& X, const VersionTuple &Y) {
return X.Major == Y.Major && X.Minor == Y.Minor && X.Subminor == Y.Subminor;
}
/// \brief Determine if two version numbers are not equivalent.
///
/// If not provided, minor and subminor version numbers are considered to be
/// zero.
friend bool operator!=(const VersionTuple &X, const VersionTuple &Y) {
return !(X == Y);
}
/// \brief Determine whether one version number precedes another.
///
/// If not provided, minor and subminor version numbers are considered to be
/// zero.
friend bool operator<(const VersionTuple &X, const VersionTuple &Y) {
return std::tie(X.Major, X.Minor, X.Subminor) <
std::tie(Y.Major, Y.Minor, Y.Subminor);
}
/// \brief Determine whether one version number follows another.
///
/// If not provided, minor and subminor version numbers are considered to be
/// zero.
friend bool operator>(const VersionTuple &X, const VersionTuple &Y) {
return Y < X;
}
/// \brief Determine whether one version number precedes or is
/// equivalent to another.
///
/// If not provided, minor and subminor version numbers are considered to be
/// zero.
friend bool operator<=(const VersionTuple &X, const VersionTuple &Y) {
return !(Y < X);
}
/// \brief Determine whether one version number follows or is
/// equivalent to another.
///
/// If not provided, minor and subminor version numbers are considered to be
/// zero.
friend bool operator>=(const VersionTuple &X, const VersionTuple &Y) {
return !(X < Y);
}
/// \brief Retrieve a string representation of the version number.
std::string getAsString() const;
/// \brief Try to parse the given string as a version number.
/// \returns \c true if the string does not match the regular expression
/// [0-9]+(\.[0-9]+(\.[0-9]+))
bool tryParse(StringRef string);
};
/// \brief Print a version number.
raw_ostream& operator<<(raw_ostream &Out, const VersionTuple &V);
} // end namespace clang
#endif // LLVM_CLANG_BASIC_VERSIONTUPLE_H
|
