57 lines
1.6 KiB
C++
57 lines
1.6 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 <memory>
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#include <react/renderer/componentregistry/ComponentDescriptorRegistry.h>
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#include <react/renderer/core/ComponentDescriptor.h>
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#include <react/renderer/core/ShadowNode.h>
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#include <react/renderer/core/ShadowNodeFragment.h>
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#include <react/renderer/element/Element.h>
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#include <react/renderer/element/ElementFragment.h>
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namespace facebook::react {
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/*
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* Build `ShadowNode` trees with a given given `Element` trees.
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*/
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class ComponentBuilder final {
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public:
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ComponentBuilder(
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ComponentDescriptorRegistry::Shared componentDescriptorRegistry);
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/*
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* Copyable and movable.
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*/
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ComponentBuilder(const ComponentBuilder& componentBuilder) = default;
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ComponentBuilder(ComponentBuilder&& componentBuilder) noexcept = default;
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ComponentBuilder& operator=(const ComponentBuilder& other) = default;
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ComponentBuilder& operator=(ComponentBuilder&& other) = default;
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/*
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* Builds a `ShadowNode` tree with given `Element` tree using stored
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* `ComponentDescriptorRegistry`.
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*/
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template <typename ShadowNodeT>
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std::shared_ptr<ShadowNodeT> build(Element<ShadowNodeT> element) const {
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return std::static_pointer_cast<ShadowNodeT>(build(element.fragment_));
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}
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private:
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/*
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* Internal, type-erased version of `build`.
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*/
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ShadowNode::Unshared build(const ElementFragment& elementFragment) const;
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ComponentDescriptorRegistry::Shared componentDescriptorRegistry_;
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};
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} // namespace facebook::react
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