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 21 namespace llvm { 22 class raw_ostream; 23 class StringRef; 24 25 namespace MachO { 26 27 class PackedVersion { 28 uint32_t Version{0}; 29 30 public: 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 72 inline 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