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https://github.com/facebook/react-native.git
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Rubén Norte
789912441e
Summary: It doesn't make sense to have checks for whether we're profiling or not in `__DEV__` blocks, where we shouldn't be profiling in the first case. We're going to remove the `global.__RCTProfileIsProfiling` flag in favor of a function that checks if we're profiling in real time (as opposed to checking if we're profiling only on startup, which is what that value does). This is just to make that migration easier without having to migrate callsites that are bad practices anyway. Changelog: [internal] Reviewed By: rshest Differential Revision: D40095841 fbshipit-source-id: ba6cdf4bef8a4c169c50a974671c21144ccee92b
78 lines
2.5 KiB
JavaScript
78 lines
2.5 KiB
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 Platform from '../Utilities/Platform';
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declare var console: typeof console & {_isPolyfilled: boolean, ...};
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/**
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* Sets up developer tools for React Native.
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* You can use this module directly, or just require InitializeCore.
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*/
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if (__DEV__) {
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require('./setUpReactDevTools');
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// Set up inspector
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const JSInspector = require('../JSInspector/JSInspector');
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JSInspector.registerAgent(require('../JSInspector/NetworkAgent'));
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// Note we can't check if console is "native" because it would appear "native" in JSC and Hermes.
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// We also can't check any properties that don't exist in the Chrome worker environment.
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// So we check a navigator property that's set to a particular value ("Netscape") in all real browsers.
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const isLikelyARealBrowser =
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global.navigator != null &&
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/* _
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* | |
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* _ __ ___| |_ ___ ___ __ _ _ __ ___
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* | '_ \ / _ \ __/ __|/ __/ _` | '_ \ / _ \
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* | | | | __/ |_\__ \ (_| (_| | |_) | __/
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* |_| |_|\___|\__|___/\___\__,_| .__/ \___|
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* | |
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* |_|
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*/
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global.navigator.appName === 'Netscape'; // Any real browser
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if (!Platform.isTesting) {
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const HMRClient = require('../Utilities/HMRClient');
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if (console._isPolyfilled) {
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// We assume full control over the console and send JavaScript logs to Metro.
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[
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'trace',
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'info',
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'warn',
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'error',
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'log',
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'group',
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'groupCollapsed',
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'groupEnd',
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'debug',
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].forEach(level => {
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const originalFunction = console[level];
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console[level] = function (...args) {
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HMRClient.log(level, args);
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originalFunction.apply(console, args);
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};
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});
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} else {
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// We assume the environment has a real rich console (like Chrome), and don't hijack it to log to Metro.
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// It's likely the developer is using rich console to debug anyway, and hijacking it would
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// lose the filenames in console.log calls: https://github.com/facebook/react-native/issues/26788.
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HMRClient.log('log', [
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`JavaScript logs will appear in your ${
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isLikelyARealBrowser ? 'browser' : 'environment'
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} console`,
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]);
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}
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}
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require('./setUpReactRefresh');
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}
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