Implement useSyncExternalStore in Fiber #22239
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
facebook-github-bot
added
CLA Signed
React Core Team
|
Comparing: 77912d9...15bb962 Critical size changesIncludes critical production bundles, as well as any change greater than 2%:
Significant size changesIncludes any change greater than 0.2%: Expand to show
|
acdlite
force-pushed
the
usesyncexternalstore-fiber
branch
from
4a51283
to
4d92339
Compare
This was referenced Sep 6, 2021
acdlite
force-pushed
the
usesyncexternalstore-fiber
branch
2 times, most recently
from
6e8b8c0
to
a95b548
Compare
acdlite
force-pushed
the
usesyncexternalstore-fiber
branch
from
a95b548
to
c65b925
Compare
rickhanlonii
approved these changes
Sep 7, 2021
| @@ -242,27 +240,29 @@ describe('Shared useSyncExternalStore behavior (shim and built-in)', () => { | |||
| expect(root).toMatchRenderedOutput('A0B0'); | |||
|
|
|||
| // Update b but not a | |||
| act(() => { | |||
| await act(() => { | |||
There was a problem hiding this comment.
Just to check my understanding of the current state of act - we need to use await here because we're using internal act right? External act wouldn't?
There was a problem hiding this comment.
Yeah that's right. I think we could remove from internal act by mocking the microtask queue (which I think Jest already does, maybe?), just haven't yet. External act works because it bypasses the microtask queue entirely.
This adds an initial implementation of useSyncExternalStore to the fiber reconciler. It's mostly a copy-paste of the userspace implementation, which is not ideal but is a good enough starting place. The main change we'll want to make to this native implementation is to move the tearing checks from the layout phase to an earlier, pre-commit phase so that code that runs in the commit phase always observes a consistent tree. Follow-ups: - Implement in Fizz - Implement in old SSR renderer - Implement in react-debug-hooks
acdlite
force-pushed
the
usesyncexternalstore-fiber
branch
from
c65b925
to
15bb962
Compare
facebook-github-bot
pushed a commit
to facebook/react-native
that referenced
this pull request
Sep 11, 2021
Summary: This sync includes the following changes: - **[95d762e40](facebook/react@95d762e40 )**: Remove duplicate test //<Andrew Clark>// - **[d4d1dc085](facebook/react@d4d1dc085 )**: Reorder VARIANT feature flags ([#22266](facebook/react#22266)) //<Dan Abramov>// - **[2f156eafb](facebook/react@2f156eafb )**: Adjust consoleManagedByDevToolsDuringStrictMode feature flag ([#22253](facebook/react#22253)) //<Dan Abramov>// - **[cfd819332](facebook/react@cfd819332 )**: Add useSyncExternalStore to react-debug-tools ([#22240](facebook/react#22240)) //<Andrew Clark>// - **[8e80592a3](facebook/react@8e80592a3 )**: Remove state queue from useSyncExternalStore ([#22265](facebook/react#22265)) //<Andrew Clark>// - **[06f98c168](facebook/react@06f98c168 )**: Implement useSyncExternalStore in Fiber ([#22239](facebook/react#22239)) //<Andrew Clark>// - **[77912d9a0](facebook/react@77912d9a0 )**: Wire up the native API for useSyncExternalStore ([#22237](facebook/react#22237)) //<Andrew Clark>// - **[031abd24b](facebook/react@031abd24b )**: Add warning and test for useSyncExternalStore when getSnapshot isn't cached ([#22262](facebook/react#22262)) //<salazarm>// - **[b8884de24](facebook/react@b8884de24 )**: break up import keyword to avoid being accidentally parsed as dynamic import statement in external code ([#21918](facebook/react#21918)) //<Jianhua Zheng>// - **[6d6bba5bf](facebook/react@6d6bba5bf )**: Fix typo in ReactUpdatePriority-test.js ([#21958](facebook/react#21958)) //<Ikko Ashimine>// - **[0c0d1ddae](facebook/react@0c0d1ddae )**: feat(eslint-plugin-react-hooks): support ESLint 8.x ([#22248](facebook/react#22248)) //<Michaël De Boey>// - **[1314299c7](facebook/react@1314299c7 )**: Initial shim of useSyncExternalStore ([#22211](facebook/react#22211)) //<Andrew Clark>// - **[fc40f02ad](facebook/react@fc40f02ad )**: Add consoleManagedByDevToolsDuringStrictMode feature flag in React Reconciler ([#22196](facebook/react#22196)) //<Luna Ruan>// - **[46a0f050a](facebook/react@46a0f050a )**: Set up use-sync-external-store package ([#22202](facebook/react#22202)) //<Andrew Clark>// - **[8723e772b](facebook/react@8723e772b )**: Fix a string interpolation typo in ReactHooks test ([#22174](facebook/react#22174)) //<Matt Hargett>// - **[60a30cf32](facebook/react@60a30cf32 )**: Console Logging for StrictMode Double Rendering ([#22030](facebook/react#22030)) //<Luna Ruan>// - **[76bbad3e3](facebook/react@76bbad3e3 )**: Add maxYieldMs feature flag in Scheduler ([#22165](facebook/react#22165)) //<Ricky>// - **[b0b53ae2c](facebook/react@b0b53ae2c )**: Add feature flags for scheduler experiments ([#22105](facebook/react#22105)) //<Ricky>// Changelog: [General][Changed] - React Native sync for revisions bd5bf55...95d762e jest_e2e[run_all_tests] Reviewed By: mdvacca Differential Revision: D30809906 fbshipit-source-id: 131cfdf91e15f67fa59a5d925467e538ee89fe10
zhengjitf
pushed a commit
to zhengjitf/react
that referenced
this pull request
Apr 15, 2022
This adds an initial implementation of useSyncExternalStore to the fiber reconciler. It's mostly a copy-paste of the userspace implementation, which is not ideal but is a good enough starting place. The main change we'll want to make to this native implementation is to move the tearing checks from the layout phase to an earlier, pre-commit phase so that code that runs in the commit phase always observes a consistent tree. Follow-ups: - Implement in Fizz - Implement in old SSR renderer - Implement in react-debug-hooks
This was referenced Oct 4, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Based on #22237
This adds an initial implementation of useSyncExternalStore to the fiber reconciler. It's mostly a copy-paste of the userspace implementation, which is not ideal but is a good enough starting place.
The main change we'll want to make to this native implementation is to move the tearing checks from the layout phase to an earlier, pre-commit phase so that code that runs in the commit phase always observes a consistent tree.
Follow-ups: