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Remove vestigial Suspense batching logic #25861

Merged
merged 1 commit into from
Jan 4, 2023
Merged

Remove vestigial Suspense batching logic #25861

merged 1 commit into from
Jan 4, 2023

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acdlite
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@acdlite acdlite commented Dec 9, 2022

This code was originally added in the old ExpirationTime implementation of Suspense. The idea is that if multiple updates suspend inside the same Suspense boundary, and both of them resolve, we should render both results in the same batch, to reduce jank.

This was an incomplete idea, though. We later discovered a stronger requirement — once we show a fallback, we cannot fill in that fallback without completing all the updates that were previously skipped over. Otherwise you get tearing. This was fixed by #18411, then we discovered additional related flaws that were addressed in #24685. See those PR descriptions for additional context.

So I believe this older code is no longer necessary.

@facebook-github-bot facebook-github-bot added CLA Signed React Core Team Opened by a member of the React Core Team labels Dec 9, 2022
@acdlite acdlite marked this pull request as ready for review December 9, 2022 17:07
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sizebot commented Dec 9, 2022

Comparing: b14d7fa...3211d12

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 = 154.37 kB 154.29 kB = 48.97 kB 48.95 kB
oss-experimental/react-dom/cjs/react-dom.production.min.js = 156.29 kB 156.21 kB = 49.63 kB 49.61 kB
facebook-www/ReactDOM-prod.classic.js = 533.12 kB 532.80 kB = 94.96 kB 94.91 kB
facebook-www/ReactDOM-prod.modern.js = 518.22 kB 517.90 kB = 92.76 kB 92.70 kB
facebook-www/ReactDOMForked-prod.classic.js = 533.12 kB 532.80 kB = 94.96 kB 94.91 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 3211d12

@acdlite acdlite force-pushed the remove-vestigial-suspense-batching-logic branch from 3211d12 to e9522b3 Compare December 22, 2022 04:58
@acdlite
Remove vestigial Suspense batching logic
652533d 
This code was originally added in the old ExpirationTime implementation
of Suspense. The idea is that if multiple updates suspend inside the
same Suspense boundary, and both of them resolve, we should render both
results in the same batch, to reduce jank.

This was an incomplete idea, though. We later discovered a stronger
requirement — once we show a fallback, we cannot fill in that fallback
without completing _all_ the updates that were previously skipped over.
Otherwise you get tearing. This was fixed by facebook#18411, then we
discovered additional related flaws that were addressed in facebook#24685. See 
those PR descriptions for additional context.

So I believe this older code is no longer necessary.
@acdlite acdlite force-pushed the remove-vestigial-suspense-batching-logic branch from e9522b3 to 652533d Compare January 4, 2023 19:40
@acdlite acdlite merged commit 48274a4 into facebook:main Jan 4, 2023
github-actions bot pushed a commit that referenced this pull request Jan 4, 2023
@acdlite
Remove vestigial Suspense batching logic (#25861)
f71e333 
This code was originally added in the old ExpirationTime implementation
of Suspense. The idea is that if multiple updates suspend inside the
same Suspense boundary, and both of them resolve, we should render both
results in the same batch, to reduce jank.

This was an incomplete idea, though. We later discovered a stronger
requirement — once we show a fallback, we cannot fill in that fallback
without completing _all_ the updates that were previously skipped over.
Otherwise you get tearing. This was fixed by #18411, then we discovered
additional related flaws that were addressed in #24685. See those PR
descriptions for additional context.

So I believe this older code is no longer necessary.

DiffTrain build for [48274a4](48274a4)
[View git log for this commit](https://github.com/facebook/react/commits/48274a43aa708f63a7580142a4c1c1a47f31c1ac)
facebook-github-bot pushed a commit to facebook/react-native that referenced this pull request Jan 31, 2023
@sammy-SC @facebook-github-bot
React Native sync for revisions 17f6912...48b687f
dea48e2 
Summary:
This sync includes the following changes:
- **[48b687fc9](facebook/react@48b687fc9 )**: [trusted types][www] Add enableTrustedTypesIntegration flag back in ([#26016](facebook/react#26016)) //<an onion>//
- **[9b1423cc0](facebook/react@9b1423cc0 )**: Revert "Hold host functions in var" ([#26079](facebook/react#26079)) //<Samuel Susla>//
- **[ce09ace9a](facebook/react@ce09ace9a )**: Improve Error Messages when Access Client References ([#26059](facebook/react#26059)) //<Sebastian Markbåge>//
- **[0652bdbd1](facebook/react@0652bdbd1 )**: Add flow types to Maps in ReactNativeViewConfigRegistry.js ([#26064](facebook/react#26064)) //<Samuel Susla>//
- **[ee8509801](facebook/react@ee8509801 )**: [cleanup] remove deletedTreeCleanUpLevel feature flag ([#25529](facebook/react#25529)) //<Jan Kassens>//
- **[0e31dd028](facebook/react@0e31dd028 )**: Remove findDOMNode www shim ([#25998](facebook/react#25998)) //<Jan Kassens>//
- **[379dd741e](facebook/react@379dd741e )**: [www] set enableTrustedTypesIntegration to false ([#25997](facebook/react#25997)) //<Jan Kassens>//
- **[555ece0cd](facebook/react@555ece0cd )**: Don't warn about concurrently rendering contexts if we finished rendering ([#22797](facebook/react#22797)) //<Sebastian Silbermann>//
- **[0fce6bb49](facebook/react@0fce6bb49 )**: [cleanup] remove feature flags warnAboutDefaultPropsOnFunctionComponents and warnAboutStringRefs ([#25980](facebook/react#25980)) //<Jan Kassens>//
- **[7002a6743](facebook/react@7002a6743 )**: [cleanup] remove unused values from ReactFeatureFlags.www-dynamic ([#25575](facebook/react#25575)) //<Jan Kassens>//
- **[a48e54f2b](facebook/react@a48e54f2b )**: [cleanup] remove old feature flag warnAboutDeprecatedLifecycles ([#25978](facebook/react#25978)) //<Jan Kassens>//
- **[0f4a83596](facebook/react@0f4a83596 )**: Remove duplicate JSResourceReferenceImpl mock ([#25976](facebook/react#25976)) //<Jan Kassens>//
- **[c49131669](facebook/react@c49131669 )**: Remove unused Flow suppressions ([#25977](facebook/react#25977)) //<Jan Kassens>//
- **[afe6521](facebook/react@afe6521e1 )**: Refactor: remove useless parameter ([#25923](facebook/react#25923)) //<Chris>//
- **[34464fb16](facebook/react@34464fb16 )**: Upgrade to Flow 0.196.3 ([#25974](facebook/react#25974)) //<Jan Kassens>//
- **[e2424f33b](facebook/react@e2424f33b )**: [flow] enable exact_empty_objects ([#25973](facebook/react#25973)) //<Jan Kassens>//
- **[0b4f44302](facebook/react@0b4f44302 )**: [flow] enable enforce_local_inference_annotations ([#25921](facebook/react#25921)) //<Jan Kassens>//
- **[0b974418c](facebook/react@0b974418c )**: [Fizz] Fork Fizz instruction set for inline script and external runtime ([#25862](facebook/react#25862)) //<mofeiZ>//
- **[5379b6123](facebook/react@5379b6123 )**: Batch sync, default and continuous lanes ([#25700](facebook/react#25700)) //<Tianyu Yao>//
- **[bbf4d2211](facebook/react@bbf4d2211 )**: Update import for babel-code-frame in build script ([#25963](facebook/react#25963)) //<Ming Ye>//
- **[b83baf63f](facebook/react@b83baf63f )**: Transform updates to support Flow this annotation syntax ([#25918](facebook/react#25918)) //<Jan Kassens>//
- **[c2d655207](facebook/react@c2d655207 )**: Unify `use` and `renderDidSuspendDelayIfPossible` implementations ([#25922](facebook/react#25922)) //<Andrew Clark>//
- **[48274a43a](facebook/react@48274a43a )**: Remove vestigial Suspense batching logic ([#25861](facebook/react#25861)) //<Andrew Clark>//
- **[de7d1c907](facebook/react@de7d1c907 )**: Add `fetchPriority` to `<img>` and `<link>` ([#25927](facebook/react#25927)) //<Steven>//
- **[81d4ee9ca](facebook/react@81d4ee9ca )**: reconciler docs: fix small typo - "mode" (instead of "node") ([#25863](facebook/react#25863)) //<satelllte>//
- **[5fcf1a4b4](facebook/react@5fcf1a4b4 )**: Bugfix: Synchronous ping during render phase sometimes unwinds the stack, leading to crash ([#25851](facebook/react#25851)) //<Andrew Clark>//
- **[2b1fb91a5](facebook/react@2b1fb91a5 )**: ESLint upgrade to use hermes-eslint ([#25915](facebook/react#25915)) //<Jan Kassens>//
- **[fabef7a6b](facebook/react@fabef7a6b )**: Resubmit Add HydrationSyncLane ([#25878](facebook/react#25878)) //<Tianyu Yao>//
- **[7efa9e597](facebook/react@7efa9e597 )**: Fix unwinding context during selective hydration ([#25876](facebook/react#25876)) //<Tianyu Yao>//
- **[84a0a171e](facebook/react@84a0a171e )**: Rename experimental useEvent to useEffectEvent ([#25881](facebook/react#25881)) //<Sebastian Markbåge>//
- **[4dda96a40](facebook/react@4dda96a40 )**: [react-www] remove forked bundle ([#25866](facebook/react#25866)) //<Jan Kassens>//
- **[9c09c1cd6](facebook/react@9c09c1cd6 )**: Revert "Fork ReactDOMSharedInternals for www ([#25791](facebook/react#25791))" ([#25864](facebook/react#25864)) //<lauren>//
- **[996e4c0d5](facebook/react@996e4c0d5 )**: Offscreen add attach ([#25603](facebook/react#25603)) //<Samuel Susla>//
- **[b14d7fa4b](facebook/react@b14d7fa4b )**: Add support for setNativeProps to Fabric ([#25737](facebook/react#25737)) //<Samuel Susla>//
- **[819687279](facebook/react@819687279 )**: [Float] Fix typo in ReactDOMResourceValidation.js ([#25798](facebook/react#25798)) //<Ikko Ashimine>//
- **[5dfc485f6](facebook/react@5dfc485f6 )**: fix tests for when float is off ([#25839](facebook/react#25839)) //<Josh Story>//
- **[bfcbf3306](facebook/react@bfcbf3306 )**: toString children of title ([#25838](facebook/react#25838)) //<Sebastian Markbåge>//
- **[d4bc16a7d](facebook/react@d4bc16a7d )**: Revert "[react-www] remove forked bundle" ([#25837](facebook/react#25837)) //<Ricky>//
- **[d69b2cf82](facebook/react@d69b2cf82 )**: [bug fix] revert values in ReactFiberFlags to keep consistency for devtools ([#25832](facebook/react#25832)) //<Mengdi Chen>//
- **[645ae2686](facebook/react@645ae2686 )**: [react-www] remove forked bundle ([#25831](facebook/react#25831)) //<Jan Kassens>//
- **[d807eb52c](facebook/react@d807eb52c )**: Revert recent hydration changes ([#25812](facebook/react#25812)) //<Andrew Clark>//
- **[2ccfa657d](facebook/react@2ccfa657d )**: Fork ReactDOMSharedInternals for www ([#25791](facebook/react#25791)) //<lauren>//
- **[f0534ae94](facebook/react@f0534ae94 )**: Avoid replaying SelectiveHydrationException in dev ([#25754](facebook/react#25754)) //<Tianyu Yao>//
- **[7fab379d8](facebook/react@7fab379d8 )**: fix link to ReactDOMHostconfig in reconciler docs ([#25788](facebook/react#25788)) //<Dmitry>//
- **[500c8aa08](facebook/react@500c8aa08 )**: Add component name to StrictMode error message ([#25718](facebook/react#25718)) //<Samuel Susla>//
- **[353c30252](facebook/react@353c30252 )**: Hold host functions in var ([#25741](facebook/react#25741)) //<Samuel Susla>//

Changelog:
[General][Changed] - React Native sync for revisions 17f6912...48b687f

jest_e2e[run_all_tests]

Reviewed By: rubennorte

Differential Revision: D42855483

fbshipit-source-id: c244a595bb2d490a23b333c1b16d04a459ec94fc
@sammy-SC sammy-SC mentioned this pull request Apr 5, 2023
Closed
OlimpiaZurek pushed a commit to OlimpiaZurek/react-native that referenced this pull request May 22, 2023
@sammy-SC @OlimpiaZurek
React Native sync for revisions 17f6912...48b687f
6c53149 
Summary:
This sync includes the following changes:
- **[48b687fc9](facebook/react@48b687fc9 )**: [trusted types][www] Add enableTrustedTypesIntegration flag back in ([facebook#26016](facebook/react#26016)) //<an onion>//
- **[9b1423cc0](facebook/react@9b1423cc0 )**: Revert "Hold host functions in var" ([facebook#26079](facebook/react#26079)) //<Samuel Susla>//
- **[ce09ace9a](facebook/react@ce09ace9a )**: Improve Error Messages when Access Client References ([facebook#26059](facebook/react#26059)) //<Sebastian Markbåge>//
- **[0652bdbd1](facebook/react@0652bdbd1 )**: Add flow types to Maps in ReactNativeViewConfigRegistry.js ([facebook#26064](facebook/react#26064)) //<Samuel Susla>//
- **[ee8509801](facebook/react@ee8509801 )**: [cleanup] remove deletedTreeCleanUpLevel feature flag ([facebook#25529](facebook/react#25529)) //<Jan Kassens>//
- **[0e31dd028](facebook/react@0e31dd028 )**: Remove findDOMNode www shim ([facebook#25998](facebook/react#25998)) //<Jan Kassens>//
- **[379dd741e](facebook/react@379dd741e )**: [www] set enableTrustedTypesIntegration to false ([facebook#25997](facebook/react#25997)) //<Jan Kassens>//
- **[555ece0cd](facebook/react@555ece0cd )**: Don't warn about concurrently rendering contexts if we finished rendering ([facebook#22797](facebook/react#22797)) //<Sebastian Silbermann>//
- **[0fce6bb49](facebook/react@0fce6bb49 )**: [cleanup] remove feature flags warnAboutDefaultPropsOnFunctionComponents and warnAboutStringRefs ([facebook#25980](facebook/react#25980)) //<Jan Kassens>//
- **[7002a6743](facebook/react@7002a6743 )**: [cleanup] remove unused values from ReactFeatureFlags.www-dynamic ([facebook#25575](facebook/react#25575)) //<Jan Kassens>//
- **[a48e54f2b](facebook/react@a48e54f2b )**: [cleanup] remove old feature flag warnAboutDeprecatedLifecycles ([facebook#25978](facebook/react#25978)) //<Jan Kassens>//
- **[0f4a83596](facebook/react@0f4a83596 )**: Remove duplicate JSResourceReferenceImpl mock ([facebook#25976](facebook/react#25976)) //<Jan Kassens>//
- **[c49131669](facebook/react@c49131669 )**: Remove unused Flow suppressions ([facebook#25977](facebook/react#25977)) //<Jan Kassens>//
- **[afe6521](facebook/react@afe6521e1 )**: Refactor: remove useless parameter ([facebook#25923](facebook/react#25923)) //<Chris>//
- **[34464fb16](facebook/react@34464fb16 )**: Upgrade to Flow 0.196.3 ([facebook#25974](facebook/react#25974)) //<Jan Kassens>//
- **[e2424f33b](facebook/react@e2424f33b )**: [flow] enable exact_empty_objects ([facebook#25973](facebook/react#25973)) //<Jan Kassens>//
- **[0b4f44302](facebook/react@0b4f44302 )**: [flow] enable enforce_local_inference_annotations ([facebook#25921](facebook/react#25921)) //<Jan Kassens>//
- **[0b974418c](facebook/react@0b974418c )**: [Fizz] Fork Fizz instruction set for inline script and external runtime ([facebook#25862](facebook/react#25862)) //<mofeiZ>//
- **[5379b6123](facebook/react@5379b6123 )**: Batch sync, default and continuous lanes ([facebook#25700](facebook/react#25700)) //<Tianyu Yao>//
- **[bbf4d2211](facebook/react@bbf4d2211 )**: Update import for babel-code-frame in build script ([facebook#25963](facebook/react#25963)) //<Ming Ye>//
- **[b83baf63f](facebook/react@b83baf63f )**: Transform updates to support Flow this annotation syntax ([facebook#25918](facebook/react#25918)) //<Jan Kassens>//
- **[c2d655207](facebook/react@c2d655207 )**: Unify `use` and `renderDidSuspendDelayIfPossible` implementations ([facebook#25922](facebook/react#25922)) //<Andrew Clark>//
- **[48274a43a](facebook/react@48274a43a )**: Remove vestigial Suspense batching logic ([facebook#25861](facebook/react#25861)) //<Andrew Clark>//
- **[de7d1c907](facebook/react@de7d1c907 )**: Add `fetchPriority` to `<img>` and `<link>` ([facebook#25927](facebook/react#25927)) //<Steven>//
- **[81d4ee9ca](facebook/react@81d4ee9ca )**: reconciler docs: fix small typo - "mode" (instead of "node") ([facebook#25863](facebook/react#25863)) //<satelllte>//
- **[5fcf1a4b4](facebook/react@5fcf1a4b4 )**: Bugfix: Synchronous ping during render phase sometimes unwinds the stack, leading to crash ([facebook#25851](facebook/react#25851)) //<Andrew Clark>//
- **[2b1fb91a5](facebook/react@2b1fb91a5 )**: ESLint upgrade to use hermes-eslint ([facebook#25915](facebook/react#25915)) //<Jan Kassens>//
- **[fabef7a6b](facebook/react@fabef7a6b )**: Resubmit Add HydrationSyncLane ([facebook#25878](facebook/react#25878)) //<Tianyu Yao>//
- **[7efa9e597](facebook/react@7efa9e597 )**: Fix unwinding context during selective hydration ([facebook#25876](facebook/react#25876)) //<Tianyu Yao>//
- **[84a0a171e](facebook/react@84a0a171e )**: Rename experimental useEvent to useEffectEvent ([facebook#25881](facebook/react#25881)) //<Sebastian Markbåge>//
- **[4dda96a40](facebook/react@4dda96a40 )**: [react-www] remove forked bundle ([facebook#25866](facebook/react#25866)) //<Jan Kassens>//
- **[9c09c1cd6](facebook/react@9c09c1cd6 )**: Revert "Fork ReactDOMSharedInternals for www ([facebook#25791](facebook/react#25791))" ([facebook#25864](facebook/react#25864)) //<lauren>//
- **[996e4c0d5](facebook/react@996e4c0d5 )**: Offscreen add attach ([facebook#25603](facebook/react#25603)) //<Samuel Susla>//
- **[b14d7fa4b](facebook/react@b14d7fa4b )**: Add support for setNativeProps to Fabric ([facebook#25737](facebook/react#25737)) //<Samuel Susla>//
- **[819687279](facebook/react@819687279 )**: [Float] Fix typo in ReactDOMResourceValidation.js ([facebook#25798](facebook/react#25798)) //<Ikko Ashimine>//
- **[5dfc485f6](facebook/react@5dfc485f6 )**: fix tests for when float is off ([facebook#25839](facebook/react#25839)) //<Josh Story>//
- **[bfcbf3306](facebook/react@bfcbf3306 )**: toString children of title ([facebook#25838](facebook/react#25838)) //<Sebastian Markbåge>//
- **[d4bc16a7d](facebook/react@d4bc16a7d )**: Revert "[react-www] remove forked bundle" ([facebook#25837](facebook/react#25837)) //<Ricky>//
- **[d69b2cf82](facebook/react@d69b2cf82 )**: [bug fix] revert values in ReactFiberFlags to keep consistency for devtools ([facebook#25832](facebook/react#25832)) //<Mengdi Chen>//
- **[645ae2686](facebook/react@645ae2686 )**: [react-www] remove forked bundle ([facebook#25831](facebook/react#25831)) //<Jan Kassens>//
- **[d807eb52c](facebook/react@d807eb52c )**: Revert recent hydration changes ([facebook#25812](facebook/react#25812)) //<Andrew Clark>//
- **[2ccfa657d](facebook/react@2ccfa657d )**: Fork ReactDOMSharedInternals for www ([facebook#25791](facebook/react#25791)) //<lauren>//
- **[f0534ae94](facebook/react@f0534ae94 )**: Avoid replaying SelectiveHydrationException in dev ([facebook#25754](facebook/react#25754)) //<Tianyu Yao>//
- **[7fab379d8](facebook/react@7fab379d8 )**: fix link to ReactDOMHostconfig in reconciler docs ([facebook#25788](facebook/react#25788)) //<Dmitry>//
- **[500c8aa08](facebook/react@500c8aa08 )**: Add component name to StrictMode error message ([facebook#25718](facebook/react#25718)) //<Samuel Susla>//
- **[353c30252](facebook/react@353c30252 )**: Hold host functions in var ([facebook#25741](facebook/react#25741)) //<Samuel Susla>//

Changelog:
[General][Changed] - React Native sync for revisions 17f6912...48b687f

jest_e2e[run_all_tests]

Reviewed By: rubennorte

Differential Revision: D42855483

fbshipit-source-id: c244a595bb2d490a23b333c1b16d04a459ec94fc
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