1//===- llvm/TextAPI/MachO/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_MACHO_PACKED_VERSION_H
14#define LLVM_TEXTAPI_MACHO_PACKED_VERSION_H
15
16#include "llvm/ADT/StringRef.h"
17#include "llvm/Support/raw_ostream.h"
18
19namespace llvm {
20namespace MachO {
21
22class PackedVersion {
23  uint32_t Version{0};
24
25public:
26  constexpr PackedVersion() = default;
27  explicit constexpr PackedVersion(uint32_t RawVersion) : Version(RawVersion) {}
28  PackedVersion(unsigned Major, unsigned Minor, unsigned Subminor)
29      : Version((Major << 16) | ((Minor & 0xff) << 8) | (Subminor & 0xff)) {}
30
31  bool empty() const { return Version == 0; }
32
33  /// Retrieve the major version number.
34  unsigned getMajor() const { return Version >> 16; }
35
36  /// Retrieve the minor version number, if provided.
37  unsigned getMinor() const { return (Version >> 8) & 0xff; }
38
39  /// Retrieve the subminor version number, if provided.
40  unsigned getSubminor() const { return Version & 0xff; }
41
42  bool parse32(StringRef Str);
43  std::pair<bool, bool> parse64(StringRef Str);
44
45  bool operator<(const PackedVersion &O) const { return Version < O.Version; }
46
47  bool operator==(const PackedVersion &O) const { return Version == O.Version; }
48
49  bool operator!=(const PackedVersion &O) const { return Version != O.Version; }
50
51  uint32_t rawValue() const { return Version; }
52
53  void print(raw_ostream &OS) const;
54};
55
56inline raw_ostream &operator<<(raw_ostream &OS, const PackedVersion &Version) {
57  Version.print(OS);
58  return OS;
59}
60
61} // end namespace MachO.
62} // end namespace llvm.
63
64#endif // LLVM_TEXTAPI_MACHO_PACKED_VERSION_H
65