version.h

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// Copyright 2013 The Flutter 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 FLUTTER_IMPELLER_BASE_VERSION_H_
#define FLUTTER_IMPELLER_BASE_VERSION_H_
 
#include <cstddef>
#include <optional>
#include <string>
#include <tuple>
#include <vector>
 
namespace impeller {
 
struct Version {
 public:
  size_t major_version;
  size_t minor_version;
  size_t patch_version;
 
  constexpr explicit Version(size_t p_major = 0,
                             size_t p_minor = 0,
                             size_t p_patch = 0)
      : major_version(p_major),
        minor_version(p_minor),
        patch_version(p_patch) {}
 
  static std::optional<Version> FromVector(const std::vector<size_t>& version);
 
  constexpr bool IsAtLeast(const Version& other) const {
    return std::tie(major_version, minor_version, patch_version) >=
           std::tie(other.major_version, other.minor_version,
                    other.patch_version);
  }
 
  std::string ToString() const;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_BASE_VERSION_H_