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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /security/sandbox/chromium/base/version.h
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Add m-esr52 at 52.6.0
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diff --git a/security/sandbox/chromium/base/version.h b/security/sandbox/chromium/base/version.h
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+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_VERSION_H_
+#define BASE_VERSION_H_
+
+#include <stdint.h>
+#include <string>
+#include <vector>
+
+#include "base/base_export.h"
+
+namespace base {
+
+// Version represents a dotted version number, like "1.2.3.4", supporting
+// parsing and comparison.
+class BASE_EXPORT Version {
+ public:
+ // The only thing you can legally do to a default constructed
+ // Version object is assign to it.
+ Version();
+
+ ~Version();
+
+ // Initializes from a decimal dotted version number, like "0.1.1".
+ // Each component is limited to a uint16_t. Call IsValid() to learn
+ // the outcome.
+ explicit Version(const std::string& version_str);
+
+ // Returns true if the object contains a valid version number.
+ bool IsValid() const;
+
+ // Returns true if the version wildcard string is valid. The version wildcard
+ // string may end with ".*" (e.g. 1.2.*, 1.*). Any other arrangement with "*"
+ // is invalid (e.g. 1.*.3 or 1.2.3*). This functions defaults to standard
+ // Version behavior (IsValid) if no wildcard is present.
+ static bool IsValidWildcardString(const std::string& wildcard_string);
+
+ // Commonly used pattern. Given a valid version object, compare if a
+ // |version_str| results in a newer version. Returns true if the
+ // string represents valid version and if the version is greater than
+ // than the version of this object.
+ bool IsOlderThan(const std::string& version_str) const;
+
+ bool Equals(const Version& other) const;
+
+ // Returns -1, 0, 1 for <, ==, >.
+ int CompareTo(const Version& other) const;
+
+ // Given a valid version object, compare if a |wildcard_string| results in a
+ // newer version. This function will default to CompareTo if the string does
+ // not end in wildcard sequence ".*". IsValidWildcard(wildcard_string) must be
+ // true before using this function.
+ int CompareToWildcardString(const std::string& wildcard_string) const;
+
+ // Return the string representation of this version.
+ const std::string GetString() const;
+
+ const std::vector<uint32_t>& components() const { return components_; }
+
+ private:
+ std::vector<uint32_t> components_;
+};
+
+} // namespace base
+
+// TODO(xhwang) remove this when all users are updated to explicitly use the
+// namespace
+using base::Version;
+
+#endif // BASE_VERSION_H_