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Prevent reading canonical property of null #21242

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JoshuaGross
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Summary

If both from and to are null, this crashes.

My only question is if there's a better way to do optional chaining that is supported in the React repo? Can I use ???

Test Plan

yarn flow fabric && yarn flow native && yarn lint && yarn test

@@ -13,7 +13,8 @@ import {UIManager} from 'react-native/Libraries/ReactPrivate/ReactNativePrivateI
const ReactFabricGlobalResponderHandler = {
onChange: function(from: any, to: any, blockNativeResponder: boolean) {
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Is there a plan to flow type this?

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Surprisingly "handles" like this seem to be consistently any-typed in the ReactNativeRenderer and in the Fabric renderer. So I guess I'm just going to leave as any for now? Seems odd

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sizebot commented Apr 12, 2021

Comparing: 9d48779...ee3ee63

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 = 122.68 kB 122.68 kB = 39.38 kB 39.38 kB
oss-experimental/react-dom/cjs/react-dom.production.min.js = 129.25 kB 129.25 kB = 41.47 kB 41.46 kB
facebook-www/ReactDOM-prod.classic.js = 412.18 kB 412.18 kB = 76.23 kB 76.23 kB
facebook-www/ReactDOM-prod.modern.js = 400.23 kB 400.23 kB = 74.32 kB 74.32 kB
facebook-www/ReactDOMForked-prod.classic.js = 412.18 kB 412.18 kB = 76.23 kB 76.23 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against ee3ee63

@yungsters
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Looks like ?? and ?. are not lowered in React? I'm looking at babel.config.js.

@rickhanlonii, is this by design or just missing?

@JoshuaGross JoshuaGross merged commit 686b635 into facebook:master Apr 12, 2021
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
* Prevent reading canonical property of null

* prettier
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5 participants