Implement useSyncExternalStore in Fiber#22239
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rickhanlonii
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| // Update b but not a | ||
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| await act(() => { |
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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?
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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
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Summary: This sync includes the following changes: - **[95d762e](facebook/react@95d762e40 )**: Remove duplicate test //<Andrew Clark>// - **[d4d1dc0](facebook/react@d4d1dc085 )**: Reorder VARIANT feature flags ([#22266](facebook/react#22266)) //<Dan Abramov>// - **[2f156ea](facebook/react@2f156eafb )**: Adjust consoleManagedByDevToolsDuringStrictMode feature flag ([#22253](facebook/react#22253)) //<Dan Abramov>// - **[cfd8193](facebook/react@cfd819332 )**: Add useSyncExternalStore to react-debug-tools ([#22240](facebook/react#22240)) //<Andrew Clark>// - **[8e80592](facebook/react@8e80592a3 )**: Remove state queue from useSyncExternalStore ([#22265](facebook/react#22265)) //<Andrew Clark>// - **[06f98c1](facebook/react@06f98c168 )**: Implement useSyncExternalStore in Fiber ([#22239](facebook/react#22239)) //<Andrew Clark>// - **[77912d9](facebook/react@77912d9a0 )**: Wire up the native API for useSyncExternalStore ([#22237](facebook/react#22237)) //<Andrew Clark>// - **[031abd2](facebook/react@031abd24b )**: Add warning and test for useSyncExternalStore when getSnapshot isn't cached ([#22262](facebook/react#22262)) //<salazarm>// - **[b8884de](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>// - **[6d6bba5](facebook/react@6d6bba5bf )**: Fix typo in ReactUpdatePriority-test.js ([#21958](facebook/react#21958)) //<Ikko Ashimine>// - **[0c0d1dd](facebook/react@0c0d1ddae )**: feat(eslint-plugin-react-hooks): support ESLint 8.x ([#22248](facebook/react#22248)) //<Michaël De Boey>// - **[1314299](facebook/react@1314299c7 )**: Initial shim of useSyncExternalStore ([#22211](facebook/react#22211)) //<Andrew Clark>// - **[fc40f02](facebook/react@fc40f02ad )**: Add consoleManagedByDevToolsDuringStrictMode feature flag in React Reconciler ([#22196](facebook/react#22196)) //<Luna Ruan>// - **[46a0f05](facebook/react@46a0f050a )**: Set up use-sync-external-store package ([#22202](facebook/react#22202)) //<Andrew Clark>// - **[8723e77](facebook/react@8723e772b )**: Fix a string interpolation typo in ReactHooks test ([#22174](facebook/react#22174)) //<Matt Hargett>// - **[60a30cf](facebook/react@60a30cf32 )**: Console Logging for StrictMode Double Rendering ([#22030](facebook/react#22030)) //<Luna Ruan>// - **[76bbad3](facebook/react@76bbad3e3 )**: Add maxYieldMs feature flag in Scheduler ([#22165](facebook/react#22165)) //<Ricky>// - **[b0b53ae](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
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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 Nov 8, 2024
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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: