mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Andrei Shikov
1953f6f02e
Summary: With the `MapBuffer`-based props calculated from C++ props, there's no need to keep `rawProps` around for Android views. This change makes sure that the `rawProps` field is only initialized under the feature flag that is responsible for enabling `MapBuffer` for prop diffing, potentially decreasing memory footprint and speeding up node initialization as JS props don't have to be converted to `folly::dynamic` anymore. For layout animations, props rely on C++ values, so there's no need to update `rawProps` values either. Changelog: [Internal][Android] - Do not init `rawProps` when mapbuffer serialization is used for ViewProps. Reviewed By: mdvacca Differential Revision: D33793044 fbshipit-source-id: 35873b10d3ca8b152b25344ef2c27aff9641846f
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and 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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#pragma once
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#include <folly/dynamic.h>
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#include <react/renderer/core/PropsParserContext.h>
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#include <react/renderer/core/RawProps.h>
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#include <react/renderer/core/ReactPrimitives.h>
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#include <react/renderer/core/Sealable.h>
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#include <react/renderer/debug/DebugStringConvertible.h>
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namespace facebook {
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namespace react {
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class Props;
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using SharedProps = std::shared_ptr<Props const>;
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/*
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* Represents the most generic props object.
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*/
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class Props : public virtual Sealable, public virtual DebugStringConvertible {
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public:
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using Shared = std::shared_ptr<Props const>;
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Props() = default;
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Props(
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const PropsParserContext &context,
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const Props &sourceProps,
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RawProps const &rawProps,
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bool shouldSetRawProps = true);
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virtual ~Props() = default;
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std::string nativeId;
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/*
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* Special value that represents generation number of `Props` object, which
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* increases when the object was constructed with some source `Props` object.
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* Default props objects (that was constructed using default constructor) have
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* revision equals `0`.
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* The value might be used for optimization purposes.
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*/
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int const revision{0};
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#ifdef ANDROID
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folly::dynamic rawProps = folly::dynamic::object();
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#endif
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};
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} // namespace react
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} // namespace facebook
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