text: /*
   * Copyright (c) Facebook, Inc. and its affiliates.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  #pragma once
  
  #include <better/small_vector.h>
  #include <folly/Hash.h>
  #include <ABI38_0_0React/core/EventEmitter.h>
  #include <ABI38_0_0React/core/LayoutMetrics.h>
  #include <ABI38_0_0React/core/LocalData.h>
  #include <ABI38_0_0React/core/Props.h>
  #include <ABI38_0_0React/core/ABI38_0_0ReactPrimitives.h>
  #include <ABI38_0_0React/core/ShadowNode.h>
  
  namespace ABI38_0_0facebook {
  namespace ABI38_0_0React {
  
  /*
   * Describes a view that can be mounted.
   */
  struct ShadowView final {
    ShadowView() = default;
    ShadowView(ShadowView const &shadowView) = default;
    ShadowView(ShadowView &&shadowView) noexcept = default;
  
    /*
     * Constructs a `ShadowView` from given `ShadowNode`.
     */
    explicit ShadowView(ShadowNode const &shadowNode);
  
    ShadowView &operator=(ShadowView const &other) = default;
    ShadowView &operator=(ShadowView &&other) = default;
  
    bool operator==(ShadowView const &rhs) const;
    bool operator!=(ShadowView const &rhs) const;
  
    ComponentName componentName{};
    ComponentHandle componentHandle{};
    Tag tag{};
    Props::Shared props{};
    EventEmitter::Shared eventEmitter{};
    LayoutMetrics layoutMetrics{EmptyLayoutMetrics};
    LocalData::Shared localData{};
    State::Shared state{};
  };
  
  #if ABI38_0_0RN_DEBUG_STRING_CONVERTIBLE
  
  std::string getDebugName(ShadowView const &object);
  std::vector<DebugStringConvertibleObject> getDebugProps(
      ShadowView const &object,
      DebugStringConvertibleOptions options);
  
  #endif
  
  /*
   * Describes pair of a `ShadowView` and a `ShadowNode`.
   */
  struct ShadowViewNodePair final {
    using List = better::
        small_vector<ShadowViewNodePair, kShadowNodeChildrenSmallVectorSize>;
  
    ShadowView shadowView;
    ShadowNode const *shadowNode;
  
    /*
     * The stored pointer to `ShadowNode` represents an indentity of the pair.
     */
    bool operator==(const ShadowViewNodePair &rhs) const;
    bool operator!=(const ShadowViewNodePair &rhs) const;
  };
  
  } // namespace ABI38_0_0React
  } // namespace ABI38_0_0facebook
  
  namespace std {
  
  template <>
  struct hash<ABI38_0_0facebook::ABI38_0_0React::ShadowView> {
    size_t operator()(const ABI38_0_0facebook::ABI38_0_0React::ShadowView &shadowView) const {
      return folly::hash::hash_combine(
          0,
          shadowView.componentHandle,
          shadowView.tag,
          shadowView.props,
          shadowView.eventEmitter,
          shadowView.localData,
          shadowView.state);
    }
  };
  
  } // namespace std
  