1 //===- PackedVersion.cpp --------------------------------------------------===//
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
7 //===----------------------------------------------------------------------===//
9 // Implements the Mach-O packed version.
11 //===----------------------------------------------------------------------===//
13 #include "llvm/TextAPI/MachO/PackedVersion.h"
14 #include "llvm/ADT/SmallString.h"
15 #include "llvm/ADT/SmallVector.h"
16 #include "llvm/ADT/StringExtras.h"
17 #include "llvm/Support/Format.h"
18 #include "llvm/Support/raw_ostream.h"
23 bool PackedVersion::parse32(StringRef Str) {
29 SmallVector<StringRef, 3> Parts;
30 SplitString(Str, Parts, ".");
35 unsigned long long Num;
36 if (getAsUnsignedInteger(Parts[0], 10, Num))
44 for (unsigned i = 1, ShiftNum = 8; i < Parts.size(); ++i, ShiftNum -= 8) {
45 if (getAsUnsignedInteger(Parts[i], 10, Num))
51 Version |= (Num << ShiftNum);
57 std::pair<bool, bool> PackedVersion::parse64(StringRef Str) {
58 bool Truncated = false;
62 return std::make_pair(false, Truncated);
64 SmallVector<StringRef, 5> Parts;
65 SplitString(Str, Parts, ".");
68 return std::make_pair(false, Truncated);
70 unsigned long long Num;
71 if (getAsUnsignedInteger(Parts[0], 10, Num))
72 return std::make_pair(false, Truncated);
74 if (Num > 0xFFFFFFULL)
75 return std::make_pair(false, Truncated);
77 if (Num > 0xFFFFULL) {
83 for (unsigned i = 1, ShiftNum = 8; i < Parts.size() && i < 3;
85 if (getAsUnsignedInteger(Parts[i], 10, Num))
86 return std::make_pair(false, Truncated);
89 return std::make_pair(false, Truncated);
95 Version |= (Num << ShiftNum);
101 return std::make_pair(true, Truncated);
104 void PackedVersion::print(raw_ostream &OS) const {
105 OS << format("%d", getMajor());
106 if (getMinor() || getSubminor())
107 OS << format(".%d", getMinor());
109 OS << format(".%d", getSubminor());
112 } // end namespace MachO.
113 } // end namespace llvm.