mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
336876509c
Summary: This is a core part of the Timeline feature (aka Time Travel Debugger). With these new primitives, any external library can initiate "saving" all the previous interface changes (commits) and unwind to any previous one (in order to introspect and validate visual side-effects). The next diff in the stack will implement UI for this feature integrated into Debug menu on iOS. Changelog: [Internal] Fabric-specific internal change. Reviewed By: sammy-SC Differential Revision: D25926660 fbshipit-source-id: 2e5f6892351d3053db8f64c1cf6ff445b0867ad7
47 lines
1.1 KiB
C++
47 lines
1.1 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 <react/renderer/core/LayoutPrimitives.h>
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#include <react/renderer/uimanager/UIManagerCommitHook.h>
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#include <react/utils/Telemetry.h>
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namespace facebook {
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namespace react {
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/*
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* Represents a reference to a commit from the past.
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* The reference can be safely used to address a particular commit from non-core
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* code.
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*/
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class TimelineFrame final {
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friend class TimelineSnapshot;
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/*
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* Constructor is private and must be called by `TimelineSnapshot` only.
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*/
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TimelineFrame(int index, TelemetryTimePoint timePoint) noexcept;
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public:
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using List = std::vector<TimelineFrame>;
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TimelineFrame() = delete;
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TimelineFrame(TimelineFrame const &timelineFrame) noexcept = default;
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TimelineFrame &operator=(TimelineFrame const &other) noexcept = default;
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int getIndex() const noexcept;
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TelemetryTimePoint getTimePoint() const noexcept;
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private:
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int index_;
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TelemetryTimePoint timePoint_;
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};
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} // namespace react
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} // namespace facebook
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