mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ruslan Lesiutin
f4a942254a
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/54214 # Changelog: [Internal] React started using `clearMeasures` in https://github.com/facebook/react/pull/34803. It only does it if `performance.measure()` is defined. This should be enough for a feature check of User Timings API presence, but out stub doesn't follow the same spec. Adding `clearMarks()` and `clearMeasures()` stubs to the object. Reviewed By: rubennorte Differential Revision: D85082720 fbshipit-source-id: 3b117a6545e131cdbb2d5efb73d500a928469864
33 lines
993 B
JavaScript
33 lines
993 B
JavaScript
/**
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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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* @flow strict-local
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* @format
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*/
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import setUpPerformanceModern from '../../src/private/setup/setUpPerformanceModern';
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import NativePerformance from '../../src/private/webapis/performance/specs/NativePerformance';
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// In case if the native implementation of the Performance API is available, use it,
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// otherwise fall back to the legacy/default one, which only defines 'Performance.now()'
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if (NativePerformance) {
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setUpPerformanceModern();
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} else {
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if (!global.performance) {
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// $FlowExpectedError[cannot-write]
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global.performance = {
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mark: () => {},
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clearMarks: () => {},
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measure: () => {},
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clearMeasures: () => {},
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now: () => {
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const performanceNow = global.nativePerformanceNow || Date.now;
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return performanceNow();
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},
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};
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}
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}
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