mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
41cf6da074
Summary: This diff finally uses all facilities from the previous diffs to build an implementation of `RCTMountingTransactionObserving` protocol which does *not* require using expensive Objective-C runtime features. In the coming diffs, we will see how it can/should be used. Changelog: [Internal] Fabric-specific internal change. Reviewed By: sammy-SC Differential Revision: D18217101 fbshipit-source-id: 34f411dcb527dc81570c2f2833ce13b40e1450db
53 lines
1.4 KiB
Objective-C
53 lines
1.4 KiB
Objective-C
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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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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*/
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#import <UIKit/UIKit.h>
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#import <React/RCTComponentViewProtocol.h>
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NS_ASSUME_NONNULL_BEGIN
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/*
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* Holds a native view instance and a set of attributes associated with it.
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* Mounting infrastructure uses these objects to bookkeep views and cache their
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* attributes for efficient access.
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*/
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class RCTComponentViewDescriptor final {
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public:
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/*
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* Associated (and owned) native view instance.
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*/
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UIView<RCTComponentViewProtocol> *view;
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/*
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* Indicates a requirement to call on the view methods from
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* `RCTMountingTransactionObserving` protocol.
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*/
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bool observesMountingTransactionWillMount{false};
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bool observesMountingTransactionDidMount{false};
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};
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inline bool operator==(RCTComponentViewDescriptor const &lhs, RCTComponentViewDescriptor const &rhs)
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{
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return lhs.view == rhs.view;
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}
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inline bool operator!=(RCTComponentViewDescriptor const &lhs, RCTComponentViewDescriptor const &rhs)
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{
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return lhs.view != rhs.view;
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}
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template <>
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struct std::hash<RCTComponentViewDescriptor> {
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size_t operator()(RCTComponentViewDescriptor const &componentViewDescriptor) const
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{
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return std::hash<void *>()((__bridge void *)componentViewDescriptor.view);
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}
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};
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NS_ASSUME_NONNULL_END
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