mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
b39c75f20e
Summary: It makes perfect sense because `Builder` builds totally new shadow trees, so those are not sealed or used by anyone yet. Assigning it to const shared pointer will do logical sealing (and it does not requires const-cast). Fewer const-casts in the code, fewer bugs. Changelog: [Internal] Fabric-specific internal change. Reviewed By: sammy-SC Differential Revision: D19596284 fbshipit-source-id: 75d1c706034958ba7e4bc80a68af75a57c46eb6f
62 lines
1.4 KiB
C++
62 lines
1.4 KiB
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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#pragma once
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#include <functional>
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#include <memory>
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#include <vector>
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#include <react/core/ShadowNode.h>
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namespace facebook {
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namespace react {
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/*
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* This is an implementation detail, do not use it directly.
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* A type-erased version of `Element<>`.
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* `ElementFragment` carries all information that is stored inside `Element<>`
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* in some generalized, type-erased manner.
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*/
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class ElementFragment final {
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public:
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using Shared = std::shared_ptr<ElementFragment>;
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using List = std::vector<ElementFragment>;
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using ListOfShared = std::vector<Shared>;
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using ReferenceCallback =
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std::function<void(ShadowNode::Unshared const &shadowNode)>;
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using FinalizeCallback = std::function<void(ShadowNode &shadowNode)>;
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/*
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* ComponentDescriptor part (describes the type)
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*/
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ComponentHandle componentHandle;
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ComponentName componentName;
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/*
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* ShadowNodeFamily part (describes the family)
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*/
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Tag tag;
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SurfaceId surfaceId;
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/*
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* ShadowNode part (describes the instance)
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*/
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Props::Shared props;
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State::Shared state;
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List children;
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/*
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* Other
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*/
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ReferenceCallback referenceCallback;
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FinalizeCallback finalizeCallback;
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};
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} // namespace react
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} // namespace facebook
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