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6c3b05f343
Summary: Trivial. We need this for future use as part of AttributedString's hash. Reviewed By: mdvacca Differential Revision: D13205231 fbshipit-source-id: 14a3decae72741030284a30abdb936616bafb3fe
79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates.
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// This source code is licensed under the MIT license found in the
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// LICENSE file in the root directory of this source tree.
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#pragma once
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#include <react/core/LayoutMetrics.h>
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#include <react/core/LocalData.h>
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#include <react/core/Props.h>
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#include <react/core/ReactPrimitives.h>
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#include <react/core/ShadowNode.h>
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#include <react/events/EventEmitter.h>
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namespace facebook {
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namespace react {
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/*
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* Describes a view that can be mounted.
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*/
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struct ShadowView final {
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ShadowView() = default;
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ShadowView(const ShadowView &shadowView) = default;
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/*
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* Constructs a `ShadowView` from given `ShadowNode`.
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*/
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explicit ShadowView(const ShadowNode &shadowNode);
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ShadowView &operator=(const ShadowView &other) = default;
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bool operator==(const ShadowView &rhs) const;
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bool operator!=(const ShadowView &rhs) const;
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ComponentName componentName = "";
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ComponentHandle componentHandle = 0;
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Tag tag = -1;
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SharedProps props = {};
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SharedEventEmitter eventEmitter = {};
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LayoutMetrics layoutMetrics = EmptyLayoutMetrics;
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SharedLocalData localData = {};
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};
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/*
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* Describes pair of a `ShadowView` and a `ShadowNode`.
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*/
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struct ShadowViewNodePair final {
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const ShadowView shadowView;
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const ShadowNode &shadowNode;
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/*
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* The stored pointer to `ShadowNode` represents an indentity of the pair.
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*/
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bool operator==(const ShadowViewNodePair &rhs) const;
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bool operator!=(const ShadowViewNodePair &rhs) const;
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};
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using ShadowViewNodePairList = std::vector<ShadowViewNodePair>;
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} // namespace react
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} // namespace facebook
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namespace std {
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template <>
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struct hash<facebook::react::ShadowView> {
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size_t operator()(const facebook::react::ShadowView &shadowView) const {
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return std::hash<decltype(shadowView.componentHandle)>{}(
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shadowView.componentHandle) +
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std::hash<decltype(shadowView.tag)>{}(shadowView.tag) +
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std::hash<decltype(shadowView.props)>{}(shadowView.props) +
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std::hash<decltype(shadowView.eventEmitter)>{}(
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shadowView.eventEmitter) +
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std::hash<decltype(shadowView.localData)>{}(shadowView.localData);
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}
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};
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} // namespace std
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