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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_VERSION_H_ | 5 #ifndef BASE_VERSION_H_ |
6 #define BASE_VERSION_H_ | 6 #define BASE_VERSION_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 #include <vector> | 10 #include <vector> |
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24 ~Version(); | 24 ~Version(); |
25 | 25 |
26 // Initializes from a decimal dotted version number, like "0.1.1". | 26 // Initializes from a decimal dotted version number, like "0.1.1". |
27 // Each component is limited to a uint16. Call IsValid() to learn | 27 // Each component is limited to a uint16. Call IsValid() to learn |
28 // the outcome. | 28 // the outcome. |
29 explicit Version(const std::string& version_str); | 29 explicit Version(const std::string& version_str); |
30 | 30 |
31 // Returns true if the object contains a valid version number. | 31 // Returns true if the object contains a valid version number. |
32 bool IsValid() const; | 32 bool IsValid() const; |
33 | 33 |
| 34 // Commonly used pattern. Given a valid version object, compare if a |
| 35 // |version_str| results in a newer version. Returns true if the |
| 36 // string represents valid version and if the version is greater than |
| 37 // than the version of this object. |
| 38 bool IsOlderThan(const std::string& version_str) const; |
| 39 |
34 // Returns NULL if the string is not in the proper format. | 40 // Returns NULL if the string is not in the proper format. |
35 // Caller is responsible for freeing the Version object once done. | 41 // Caller is responsible for freeing the Version object once done. |
36 // DO NOT USE FOR NEWER CODE. | 42 // DO NOT USE FOR NEWER CODE. |
37 static Version* GetVersionFromString(const std::string& version_str); | 43 static Version* GetVersionFromString(const std::string& version_str); |
38 | 44 |
39 // Creates a copy of this version object. Caller takes ownership. | 45 // Creates a copy of this version object. Caller takes ownership. |
40 // DO NOT USE FOR NEWER CODE. | 46 // DO NOT USE FOR NEWER CODE. |
41 Version* Clone() const; | 47 Version* Clone() const; |
42 | 48 |
43 bool Equals(const Version& other) const; | 49 bool Equals(const Version& other) const; |
44 | 50 |
45 // Returns -1, 0, 1 for <, ==, >. | 51 // Returns -1, 0, 1 for <, ==, >. |
46 int CompareTo(const Version& other) const; | 52 int CompareTo(const Version& other) const; |
47 | 53 |
48 // Return the string representation of this version. | 54 // Return the string representation of this version. |
49 const std::string GetString() const; | 55 const std::string GetString() const; |
50 | 56 |
51 const std::vector<uint16>& components() const { return components_; } | 57 const std::vector<uint16>& components() const { return components_; } |
52 | 58 |
53 private: | 59 private: |
54 std::vector<uint16> components_; | 60 std::vector<uint16> components_; |
55 }; | 61 }; |
56 | 62 |
57 #endif // BASE_VERSION_H_ | 63 #endif // BASE_VERSION_H_ |
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