mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Andres Suarez
8bd3edec88
Reviewed By: aaronabramov Differential Revision: D33367752 fbshipit-source-id: 4ce94d184485e5ee0a62cf67ad2d3ba16e285c8f
36 lines
823 B
C++
36 lines
823 B
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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#include "DynamicPropsUtilities.h"
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namespace facebook {
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namespace react {
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folly::dynamic mergeDynamicProps(
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folly::dynamic const &source,
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folly::dynamic const &patch) {
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auto result = source;
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if (!result.isObject()) {
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result = folly::dynamic::object();
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}
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if (!patch.isObject()) {
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return result;
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}
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// Note, here we have to preserve sub-prop objects with `null` value as
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// an indication for the legacy mounting layer that it needs to clean them up.
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for (auto const &pair : patch.items()) {
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result[pair.first] = pair.second;
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}
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return result;
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}
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} // namespace react
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} // namespace facebook
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