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Add dynamic flags to React Native #21291

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merged 2 commits into from
Apr 15, 2021

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rickhanlonii
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Overview

This should allow RN to turn flags on/off.

They need this right now to temporarily turn off enableSyncDefaultUpdates.

@facebook-github-bot facebook-github-bot added CLA Signed React Core Team Opened by a member of the React Core Team labels Apr 15, 2021
@@ -9,6 +9,11 @@

import typeof * as FeatureFlagsType from 'shared/ReactFeatureFlags';
import typeof * as ExportsType from './ReactFeatureFlags.native-fb';
import * as DynamicFeatureFlags from './ReactFeatureFlags.www-dynamic';
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This should be a new file specific to RN, like './ReactFeatureFlags.native-fb-dynamic'.

Then you need to setup Jest to route to the correct file, like we do for www:

jest.mock(
'ReactFeatureFlags',
() => jest.requireActual('shared/forks/ReactFeatureFlags.www-dynamic'),
{virtual: true}
);

The trouble is that we don't have an RN specific test run. Could you move all our RN tests into their own Jest project, like we do for DevTools? That's the direction we're headed, where each renderer has its own project. Like how the yarn flow command works.

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Ah right - I'm just going to hardcode the setting to false for now then to unblock and come back to this while working out how this flag works in www

@rickhanlonii rickhanlonii merged commit 4c9eb2a into facebook:master Apr 15, 2021
@rickhanlonii rickhanlonii deleted the rh-rn-dynamic-flags branch April 15, 2021 19:30
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sizebot commented Apr 15, 2021

Comparing: f3337aa...9aff2c4

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name +/- Base Current +/- gzip Base gzip Current gzip
oss-stable/react-dom/cjs/react-dom.production.min.js = 122.72 kB 122.72 kB = 39.39 kB 39.39 kB
oss-experimental/react-dom/cjs/react-dom.production.min.js = 129.30 kB 129.30 kB = 41.48 kB 41.48 kB
facebook-www/ReactDOM-prod.classic.js = 412.22 kB 412.22 kB = 76.23 kB 76.24 kB
facebook-www/ReactDOM-prod.modern.js = 400.29 kB 400.29 kB = 74.32 kB 74.32 kB
facebook-www/ReactDOMForked-prod.classic.js = 412.22 kB 412.22 kB = 76.24 kB 76.24 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 9aff2c4

facebook-github-bot pushed a commit to facebook/react-native that referenced this pull request Apr 20, 2021
Summary:
This sync includes the following changes:
- **[f7cdc8936](facebook/react@f7cdc8936 )**: Also turn off enableSyncDefaultUpdates in RN test renderer ([#21293](facebook/react#21293)) //<Ricky>//
- **[4c9eb2af1](facebook/react@4c9eb2af1 )**: Add dynamic flags to React Native ([#21291](facebook/react#21291)) //<Ricky>//
- **[9eddfbf5a](facebook/react@9eddfbf5a )**: [Fizz] Two More Fixes ([#21288](facebook/react#21288)) //<Sebastian Markbåge>//
- **[11b07597e](facebook/react@11b07597e )**: Fix classes ([#21283](facebook/react#21283)) //<Sebastian Markbåge>//
- **[96d00b9bb](facebook/react@96d00b9bb )**: [Fizz] Random Fixes ([#21277](facebook/react#21277)) //<Sebastian Markbåge>//
- **[81ef53953](facebook/react@81ef53953 )**: Always insert a dummy node with an ID into fallbacks ([#21272](facebook/react#21272)) //<Sebastian Markbåge>//
- **[a4a940d7a](facebook/react@a4a940d7a )**: [Fizz] Add unsupported Portal/Scope components ([#21261](facebook/react#21261)) //<Sebastian Markbåge>//
- **[f4d7a0f1e](facebook/react@f4d7a0f1e )**: Implement useOpaqueIdentifier ([#21260](facebook/react#21260)) //<Sebastian Markbåge>//
- **[dde875dfb](facebook/react@dde875dfb )**: [Fizz] Implement Hooks ([#21257](facebook/react#21257)) //<Sebastian Markbåge>//
- **[a597c2f5d](facebook/react@a597c2f5d )**: [Fizz] Fix reentrancy bug ([#21270](facebook/react#21270)) //<Sebastian Markbåge>//
- **[15e779d92](facebook/react@15e779d92 )**: Reconciler should inject its own version into DevTools hook ([#21268](facebook/react#21268)) //<Brian Vaughn>//
- **[4f76a28c9](facebook/react@4f76a28c9 )**: [Fizz] Implement New Context ([#21255](facebook/react#21255)) //<Sebastian Markbåge>//
- **[82ef450e0](facebook/react@82ef450e0 )**: remove obsolete SharedArrayBuffer ESLint config ([#21259](facebook/react#21259)) //<Henry Q. Dineen>//
- **[dbadfa2c3](facebook/react@dbadfa2c3 )**: [Fizz] Classes Follow Up ([#21253](facebook/react#21253)) //<Sebastian Markbåge>//
- **[686b635b7](facebook/react@686b635b7 )**: Prevent reading canonical property of null ([#21242](facebook/react#21242)) //<Joshua Gross>//
- **[bb88ce95a](facebook/react@bb88ce95a )**: Bugfix: Don't rely on `finishedLanes` for passive effects ([#21233](facebook/react#21233)) //<Andrew Clark>//
- **[343710c92](facebook/react@343710c92 )**: [Fizz] Fragments and Iterable support ([#21228](facebook/react#21228)) //<Sebastian Markbåge>//
- **[933880b45](facebook/react@933880b45 )**: Make time-slicing opt-in ([#21072](facebook/react#21072)) //<Ricky>//
- **[b0407b55f](facebook/react@b0407b55f )**: Support more empty types ([#21225](facebook/react#21225)) //<Sebastian Markbåge>//
- **[39713716a](facebook/react@39713716a )**: Merge isObject branches ([#21226](facebook/react#21226)) //<Sebastian Markbåge>//
- **[8a4a59c72](facebook/react@8a4a59c72 )**: Remove textarea special case from child fiber ([#21222](facebook/react#21222)) //<Sebastian Markbåge>//
- **[dc108b0f5](facebook/react@dc108b0f5 )**: Track which fibers scheduled the current render work ([#15658](facebook/react#15658)) //<Brian Vaughn>//
- **[6ea749170](facebook/react@6ea749170 )**: Fix typo in comment ([#21214](facebook/react#21214)) //<inokawa>//
- **[b38ac13f9](facebook/react@b38ac13f9 )**: DevTools: Add post-commit hook ([#21183](facebook/react#21183)) //<Brian Vaughn>//
- **[b943aeba8](facebook/react@b943aeba8 )**: Fix: Passive effect updates are never sync ([#21215](facebook/react#21215)) //<Andrew Clark>//
- **[d389c54d1](facebook/react@d389c54d1 )**: Offscreen: Use JS stack to track hidden/unhidden subtree state ([#21211](facebook/react#21211)) //<Brian Vaughn>//
- **[c486dc1a4](facebook/react@c486dc1a4 )**: Remove unnecessary processUpdateQueue ([#21199](facebook/react#21199)) //<Sebastian Markbåge>//
- **[cf45a623a](facebook/react@cf45a623a )**: [Fizz] Implement Classes ([#21200](facebook/react#21200)) //<Sebastian Markbåge>//
- **[75c616554](facebook/react@75c616554 )**: Include actual type of `Profiler#id` on type mismatch ([#20306](facebook/react#20306)) //<Sebastian Silbermann>//
- **[1214b302e](facebook/react@1214b302e )**: test: Fix "couldn't locate all inline snapshots" ([#21205](facebook/react#21205)) //<Sebastian Silbermann>//
- **[1a02d2792](facebook/react@1a02d2792 )**: style: delete unused isHost check ([#21203](facebook/react#21203)) //<wangao>//
- **[782f689ca](facebook/react@782f689ca )**: Don't double invoke getDerivedStateFromProps for module pattern ([#21193](facebook/react#21193)) //<Sebastian Markbåge>//
- **[e90c76a65](facebook/react@e90c76a65 )**: Revert "Offscreen: Use JS stack to track hidden/unhidden subtree state" ([#21194](facebook/react#21194)) //<Brian Vaughn>//
- **[1f8583de8](facebook/react@1f8583de8 )**: Offscreen: Use JS stack to track hidden/unhidden subtree state ([#21192](facebook/react#21192)) //<Brian Vaughn>//
- **[ad6e6ec7b](facebook/react@ad6e6ec7b )**: [Fizz] Prepare Recursive Loop for More Types ([#21186](facebook/react#21186)) //<Sebastian Markbåge>//
- **[172e89b4b](facebook/react@172e89b4b )**: Reland Remove redundant initial of isArray ([#21188](facebook/react#21188)) //<Sebastian Markbåge>//
- **[7c1ba2b57](facebook/react@7c1ba2b57 )**: Proposed new Suspense layout effect semantics ([#21079](facebook/react#21079)) //<Brian Vaughn>//
- **[316aa3686](facebook/react@316aa3686 )**: [Scheduler] Fix de-opt caused by out-of-bounds access ([#21147](facebook/react#21147)) //<Andrey Marchenko>//
- **[b4f119cdf](facebook/react@b4f119cdf )**: Revert "Remove redundant initial of isArray ([#21163](facebook/react#21163))" //<Sebastian Markbage>//
- **[c03197063](facebook/react@c03197063 )**: Revert "apply prettier ([#21165](facebook/react#21165))" //<Sebastian Markbage>//
- **[94fd1214d](facebook/react@94fd1214d )**: apply prettier ([#21165](facebook/react#21165)) //<Behnam Mohammadi>//
- **[b130a0f5c](facebook/react@b130a0f5c )**: Remove redundant initial of isArray ([#21163](facebook/react#21163)) //<Behnam Mohammadi>//
- **[2c9fef32d](facebook/react@2c9fef32d )**: Remove redundant initial of hasOwnProperty ([#21134](facebook/react#21134)) //<Behnam Mohammadi>//
- **[1cf9978d8](facebook/react@1cf9978d8 )**: Don't pass internals to callbacks ([#21161](facebook/react#21161)) //<Sebastian Markbåge>//
- **[b9e4c10e9](facebook/react@b9e4c10e9 )**: [Fizz] Implement all the DOM attributes and special cases ([#21153](facebook/react#21153)) //<Sebastian Markbåge>//
- **[f8ef4ff57](facebook/react@f8ef4ff57 )**: Flush discrete passive effects before paint ([#21150](facebook/react#21150)) //<Andrew Clark>//
- **[b48b38af6](facebook/react@b48b38af6 )**: Support nesting of startTransition and flushSync (alt) ([#21149](facebook/react#21149)) //<Sebastian Markbåge>//

Changelog:
[General][Changed] - React Native sync for revisions c9aab1c...f7cdc89

jest_e2e[run_all_tests]

Reviewed By: rickhanlonii

Differential Revision: D27740113

fbshipit-source-id: 6e27204d78e3e16ed205170006cb97c0d6bfa957
koto pushed a commit to koto/react that referenced this pull request Jun 15, 2021
* Add dynamic flags to React Native

* Hardcode the setting to false instead
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