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 <cstdint> 17 #include <utility> 18 19 namespace llvm { 20 class raw_ostream; 21 class StringRef; 22 23 namespace MachO { 24 25 class PackedVersion { 26 uint32_t Version{0}; 27 28 public: 29 constexpr PackedVersion() = default; 30 explicit constexpr PackedVersion(uint32_t RawVersion) : Version(RawVersion) {} 31 PackedVersion(unsigned Major, unsigned Minor, unsigned Subminor) 32 : Version((Major << 16) | ((Minor & 0xff) << 8) | (Subminor & 0xff)) {} 33 34 bool empty() const { return Version == 0; } 35 36 /// Retrieve the major version number. 37 unsigned getMajor() const { return Version >> 16; } 38 39 /// Retrieve the minor version number, if provided. 40 unsigned getMinor() const { return (Version >> 8) & 0xff; } 41 42 /// Retrieve the subminor version number, if provided. 43 unsigned getSubminor() const { return Version & 0xff; } 44 45 bool parse32(StringRef Str); 46 std::pair<bool, bool> parse64(StringRef Str); 47 48 bool operator<(const PackedVersion &O) const { return Version < O.Version; } 49 50 bool operator==(const PackedVersion &O) const { return Version == O.Version; } 51 52 bool operator!=(const PackedVersion &O) const { return Version != O.Version; } 53 54 uint32_t rawValue() const { return Version; } 55 56 void print(raw_ostream &OS) const; 57 }; 58 59 inline raw_ostream &operator<<(raw_ostream &OS, const PackedVersion &Version) { 60 Version.print(OS); 61 return OS; 62 } 63 64 } // end namespace MachO. 65 } // end namespace llvm. 66 67 #endif // LLVM_TEXTAPI_PACKEDVERSION_H 68