mirror of
https://github.com/zebrajr/react.git
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19092ac8c3
* Re-add old Fabric Offscreen impl behind flag There's a chance that #21960 will affect layout in a way that we don't expect, so I'm adding back the old implementation so we can toggle the feature with a flag. The flag should read from the ReactNativeFeatureFlags shim so that we can change it at runtime. I'll do that separately. * Import dynamic RN flags from external module Internal feature flags that we wish to control with a GK can now be imported from an external module, which I've called "ReactNativeInternalFeatureFlags". We'll need to add this module to the downstream repo. We can't yet use this in our tests, because we don't have a test configuration that runs against the React Native feature flags fork. We should set up that up the same way we did for www.
99 lines
3.2 KiB
JavaScript
99 lines
3.2 KiB
JavaScript
'use strict';
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const forks = require('./forks');
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const {UMD_DEV, UMD_PROD, UMD_PROFILING} = require('./bundles').bundleTypes;
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// For any external that is used in a DEV-only condition, explicitly
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// specify whether it has side effects during import or not. This lets
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// us know whether we can safely omit them when they are unused.
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const HAS_NO_SIDE_EFFECTS_ON_IMPORT = false;
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// const HAS_SIDE_EFFECTS_ON_IMPORT = true;
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const importSideEffects = Object.freeze({
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fs: HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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'fs/promises': HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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path: HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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'prop-types/checkPropTypes': HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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'react-native/Libraries/ReactPrivate/ReactNativePrivateInterface': HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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scheduler: HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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react: HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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'react-dom/server': HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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'react/jsx-dev-runtime': HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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'react-fetch/node': HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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'react-dom': HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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url: HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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ReactNativeInternalFeatureFlags: HAS_NO_SIDE_EFFECTS_ON_IMPORT,
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});
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// Bundles exporting globals that other modules rely on.
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const knownGlobals = Object.freeze({
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react: 'React',
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'react-dom': 'ReactDOM',
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'react-dom/server': 'ReactDOMServer',
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'react-interactions/events/tap': 'ReactEventsTap',
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scheduler: 'Scheduler',
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'scheduler/unstable_mock': 'SchedulerMock',
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ReactNativeInternalFeatureFlags: 'ReactNativeInternalFeatureFlags',
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});
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// Given ['react'] in bundle externals, returns { 'react': 'React' }.
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function getPeerGlobals(externals, bundleType) {
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const peerGlobals = {};
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externals.forEach(name => {
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if (
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!knownGlobals[name] &&
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(bundleType === UMD_DEV ||
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bundleType === UMD_PROD ||
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bundleType === UMD_PROFILING)
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) {
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throw new Error('Cannot build UMD without a global name for: ' + name);
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}
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peerGlobals[name] = knownGlobals[name];
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});
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return peerGlobals;
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}
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// Determines node_modules packages that are safe to assume will exist.
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function getDependencies(bundleType, entry) {
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// Replaces any part of the entry that follow the package name (like
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// "/server" in "react-dom/server") by the path to the package settings
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const packageJson = require(entry.replace(/(\/.*)?$/, '/package.json'));
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// Both deps and peerDeps are assumed as accessible.
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return Array.from(
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new Set([
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...Object.keys(packageJson.dependencies || {}),
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...Object.keys(packageJson.peerDependencies || {}),
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])
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);
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}
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// Hijacks some modules for optimization and integration reasons.
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function getForks(bundleType, entry, moduleType, bundle) {
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const forksForBundle = {};
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Object.keys(forks).forEach(srcModule => {
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const dependencies = getDependencies(bundleType, entry);
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const targetModule = forks[srcModule](
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bundleType,
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entry,
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dependencies,
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moduleType,
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bundle
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);
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if (targetModule === null) {
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return;
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}
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forksForBundle[srcModule] = targetModule;
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});
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return forksForBundle;
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}
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function getImportSideEffects() {
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return importSideEffects;
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}
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module.exports = {
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getImportSideEffects,
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getPeerGlobals,
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getDependencies,
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getForks,
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};
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