1 // Copyright 2009 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_UTILS_VERSION_H_
6 #define V8_UTILS_VERSION_H_
7 
8 #include <cstdint>
9 
10 #include "src/base/functional.h"
11 
12 namespace v8 {
13 
14 namespace base {
15 template <typename T>
16 class Vector;
17 }  // namespace base
18 
19 namespace internal {
20 
21 class V8_EXPORT Version {
22  public:
23   // Return the various version components.
GetMajor()24   static int GetMajor() { return major_; }
GetMinor()25   static int GetMinor() { return minor_; }
GetBuild()26   static int GetBuild() { return build_; }
GetPatch()27   static int GetPatch() { return patch_; }
GetEmbedder()28   static const char* GetEmbedder() { return embedder_; }
IsCandidate()29   static bool IsCandidate() { return candidate_; }
Hash()30   static uint32_t Hash() {
31     return static_cast<uint32_t>(
32         base::hash_combine(major_, minor_, build_, patch_));
33   }
34 
35   // Calculate the V8 version string.
36   static void GetString(base::Vector<char> str);
37 
38   // Calculate the SONAME for the V8 shared library.
39   static void GetSONAME(base::Vector<char> str);
40 
GetVersion()41   static const char* GetVersion() { return version_string_; }
42 
43  private:
44   // NOTE: can't make these really const because of test-version.cc.
45   static int major_;
46   static int minor_;
47   static int build_;
48   static int patch_;
49   static const char* embedder_;
50   static bool candidate_;
51   static const char* soname_;
52   static const char* version_string_;
53 
54   // In test-version.cc.
55   friend void SetVersion(int major, int minor, int build, int patch,
56                          const char* embedder, bool candidate,
57                          const char* soname);
58 };
59 
60 }  // namespace internal
61 }  // namespace v8
62 
63 #endif  // V8_UTILS_VERSION_H_
64