1//===- llvm/TextAPI/PackedVersion.h - PackedVersion -------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// Defines the Mach-O packed version format.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_TEXTAPI_PACKEDVERSION_H
14#define LLVM_TEXTAPI_PACKEDVERSION_H
15
16#include "llvm/Support/VersionTuple.h"
17#include <cstdint>
18#include <string>
19#include <utility>
20
21namespace llvm {
22class raw_ostream;
23class StringRef;
24
25namespace MachO {
26
27class PackedVersion {
28 uint32_t Version{0};
29
30public:
31 constexpr PackedVersion() = default;
32 constexpr PackedVersion(uint32_t RawVersion) : Version(RawVersion) {}
33 PackedVersion(unsigned Major, unsigned Minor, unsigned Subminor)
34 : Version((Major << 16) | ((Minor & 0xff) << 8) | (Subminor & 0xff)) {}
35
36 PackedVersion(VersionTuple VT) {
37 unsigned Minor = 0, Subminor = 0;
38 if (auto VTMinor = VT.getMinor())
39 Minor = *VTMinor;
40 if (auto VTSub = VT.getSubminor())
41 Subminor = *VTSub;
42 *this = PackedVersion(VT.getMajor(), Minor, Subminor);
43 }
44
45 bool empty() const { return Version == 0; }
46
47 /// Retrieve the major version number.
48 unsigned getMajor() const { return Version >> 16; }
49
50 /// Retrieve the minor version number, if provided.
51 unsigned getMinor() const { return (Version >> 8) & 0xff; }
52
53 /// Retrieve the subminor version number, if provided.
54 unsigned getSubminor() const { return Version & 0xff; }
55
56 bool parse32(StringRef Str);
57 std::pair<bool, bool> parse64(StringRef Str);
58
59 bool operator<(const PackedVersion &O) const { return Version < O.Version; }
60
61 bool operator==(const PackedVersion &O) const { return Version == O.Version; }
62
63 bool operator!=(const PackedVersion &O) const { return Version != O.Version; }
64
65 uint32_t rawValue() const { return Version; }
66
67 operator std::string() const;
68
69 void print(raw_ostream &OS) const;
70};
71
72inline raw_ostream &operator<<(raw_ostream &OS, const PackedVersion &Version) {
73 Version.print(OS);
74 return OS;
75}
76
77} // end namespace MachO.
78} // end namespace llvm.
79
80#endif // LLVM_TEXTAPI_PACKEDVERSION_H
81

source code of llvm/include/llvm/TextAPI/PackedVersion.h