63 строки
1.4 KiB
C++
63 строки
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 <better/optional.h>
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#include <react/mounting/MountingTelemetry.h>
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#include <react/mounting/MountingTransaction.h>
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#include <react/mounting/ShadowViewMutation.h>
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namespace facebook {
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namespace react {
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/*
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* Represent a particular committed state of a shadow tree. The object contains
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* a pointer to a root shadow node, a sequential number of commit and telemetry.
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*/
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class ShadowTreeRevision final {
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public:
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/*
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* Sequential number of the commit that created this revision of a shadow
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* tree.
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*/
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using Number = int64_t;
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/*
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* Creates the object with given root shadow node, revision number and
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* telemetry.
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*/
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ShadowTreeRevision(
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ShadowNode::Shared const &rootShadowNode,
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Number number,
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MountingTelemetry telemetry);
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/*
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* Returns telemetry associated with this revision.
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*/
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MountingTelemetry const &getTelemetry() const;
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private:
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friend class MountingCoordinator;
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/*
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* Methods from this section are meant to be used by `MountingCoordinator`
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* only.
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*/
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ShadowNode const &getRootShadowNode();
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Number getNumber() const;
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private:
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ShadowNode::Shared rootShadowNode_;
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Number number_;
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MountingTelemetry telemetry_;
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};
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} // namespace react
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} // namespace facebook
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