Re-add reentrancy avoidance #23342
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Re-add reentrancy avoidance #23342
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I removed the equivalency of this in facebook#22446. However, I didn't fully understand the intended semantics of the spec but I understand this better now. The spec is not actually recursive. It won't call pull again inside of a pull. It might not call it inside startWork neither which the original issue avoided. However, it will call pull if you enqueue to the controller without filling up the desired size outside any call. We could avoid that by returning a Promise from pull that we wait to resolve until we've performed all our pending tasks. That would be the more idiomatic solution. That's a bit more involved but since we know understand it, we can readd the reentrancy hack since we have an easy place to detect it. If anything, it should probably throw or log here otherwise. I believe this fixes facebook#22772. This includes the test from facebook#22889 but should ideally have one for Fizz.
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acdlite
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Feb 23, 2022
Ah ha - this was the missing piece, and explains why the issue was seemingly inconsistent. |
facebook-github-bot
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Mar 1, 2022
Summary: This sync includes the following changes: - **[17806594c](facebook/react@17806594c )**: Move createRoot/hydrateRoot to react-dom/client ([#23385](facebook/react#23385)) //<Sebastian Markbåge>// - **[75662d6a7](facebook/react@75662d6a7 )**: Remove hacky stream.locked check, declare as byte stream instead ([#23387](facebook/react#23387)) //<Sebastian Markbåge>// - **[a82ef6d40](facebook/react@a82ef6d40 )**: Add back skipUnmountedBoundaries flag only for www ([#23383](facebook/react#23383)) //<Andrew Clark>// - **[f468816ef](facebook/react@f468816ef )**: Fix false positive hydration warnings ([#23364](facebook/react#23364)) //<Andrew Clark>// - **[5d08a24c2](facebook/react@5d08a24c2 )**: useId: Use 'H' to separate main id from hook index ([#23363](facebook/react#23363)) //<Andrew Clark>// - **[3a60844a0](facebook/react@3a60844a0 )**: Update error message for suspending at sync priority ([#23361](facebook/react#23361)) //<Andrew Clark>// - **[efe4121ee](facebook/react@efe4121ee )**: Add : to beginning and end of every useId ([#23360](facebook/react#23360)) //<Andrew Clark>// - **[42f15b324](facebook/react@42f15b324 )**: [DevTools][Transition Tracing] onTransitionComplete and onTransitionStart implmentation ([#23313](facebook/react#23313)) //<Luna Ruan>// - **[a5b22155c](facebook/react@a5b22155c )**: Warn if renderSubtreeIntoContainer is called ([#23355](facebook/react#23355)) //<Andrew Clark>// - **[52c393b5d](facebook/react@52c393b5d )**: Revert to client render on text mismatch ([#23354](facebook/react#23354)) //<Andrew Clark>// - **[1ad8d8129](facebook/react@1ad8d8129 )**: Remove object-assign polyfill ([#23351](facebook/react#23351)) //<Sebastian Markbåge>// - **[b3f3da205](facebook/react@b3f3da205 )**: Land warnOnSubscriptionInsideStartTransition flag ([#23353](facebook/react#23353)) //<Andrew Clark>// - **[990098f88](facebook/react@990098f88 )**: Re-arrange main ReactFeatureFlags module ([#23350](facebook/react#23350)) //<Andrew Clark>// - **[1f3f6db73](facebook/react@1f3f6db73 )**: Remove createMutableSource from stable exports ([#23352](facebook/react#23352)) //<Andrew Clark>// - **[587e75930](facebook/react@587e75930 )**: Remove Numeric Fallback of Symbols ([#23348](facebook/react#23348)) //<Sebastian Markbåge>// - **[40351575d](facebook/react@40351575d )**: Split writeChunk into void and return value ([#23343](facebook/react#23343)) //<Sebastian Markbåge>// - **[2c693b2de](facebook/react@2c693b2de )**: Re-add reentrancy avoidance ([#23342](facebook/react#23342)) //<Sebastian Markbåge>// - **[1760b27c0](facebook/react@1760b27c0 )**: Remove ./src/* export from public build ([#23262](facebook/react#23262)) //<Andrew Clark>// - **[552c067bb](facebook/react@552c067bb )**: Remove public export for unstable-shared-subset.js ([#23261](facebook/react#23261)) //<Andrew Clark>// Changelog: [General][Changed] - React Native sync for revisions 4de99b3...1780659 jest_e2e[run_all_tests] Reviewed By: rickhanlonii Differential Revision: D34552175 fbshipit-source-id: f1c831a45f96d335a20c3b4113196e0a42cefc03
zhengjitf
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Apr 15, 2022
* tests: add failing test to demonstrate bug in ReadableStream implementation * Re-add reentrancy avoidance I removed the equivalency of this in facebook#22446. However, I didn't fully understand the intended semantics of the spec but I understand this better now. The spec is not actually recursive. It won't call pull again inside of a pull. It might not call it inside startWork neither which the original issue avoided. However, it will call pull if you enqueue to the controller without filling up the desired size outside any call. We could avoid that by returning a Promise from pull that we wait to resolve until we've performed all our pending tasks. That would be the more idiomatic solution. That's a bit more involved but since we know understand it, we can readd the reentrancy hack since we have an easy place to detect it. If anything, it should probably throw or log here otherwise. I believe this fixes facebook#22772. This includes the test from facebook#22889 but should ideally have one for Fizz. Co-authored-by: Josh Larson <[email protected]>
Saadnajmi
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Jan 15, 2023
Summary: This sync includes the following changes: - **[17806594c](facebook/react@17806594c )**: Move createRoot/hydrateRoot to react-dom/client ([facebook#23385](facebook/react#23385)) //<Sebastian Markbåge>// - **[75662d6a7](facebook/react@75662d6a7 )**: Remove hacky stream.locked check, declare as byte stream instead ([facebook#23387](facebook/react#23387)) //<Sebastian Markbåge>// - **[a82ef6d40](facebook/react@a82ef6d40 )**: Add back skipUnmountedBoundaries flag only for www ([facebook#23383](facebook/react#23383)) //<Andrew Clark>// - **[f468816ef](facebook/react@f468816ef )**: Fix false positive hydration warnings ([facebook#23364](facebook/react#23364)) //<Andrew Clark>// - **[5d08a24c2](facebook/react@5d08a24c2 )**: useId: Use 'H' to separate main id from hook index ([facebook#23363](facebook/react#23363)) //<Andrew Clark>// - **[3a60844a0](facebook/react@3a60844a0 )**: Update error message for suspending at sync priority ([facebook#23361](facebook/react#23361)) //<Andrew Clark>// - **[efe4121ee](facebook/react@efe4121ee )**: Add : to beginning and end of every useId ([facebook#23360](facebook/react#23360)) //<Andrew Clark>// - **[42f15b324](facebook/react@42f15b324 )**: [DevTools][Transition Tracing] onTransitionComplete and onTransitionStart implmentation ([facebook#23313](facebook/react#23313)) //<Luna Ruan>// - **[a5b22155c](facebook/react@a5b22155c )**: Warn if renderSubtreeIntoContainer is called ([facebook#23355](facebook/react#23355)) //<Andrew Clark>// - **[52c393b5d](facebook/react@52c393b5d )**: Revert to client render on text mismatch ([facebook#23354](facebook/react#23354)) //<Andrew Clark>// - **[1ad8d8129](facebook/react@1ad8d8129 )**: Remove object-assign polyfill ([facebook#23351](facebook/react#23351)) //<Sebastian Markbåge>// - **[b3f3da205](facebook/react@b3f3da205 )**: Land warnOnSubscriptionInsideStartTransition flag ([facebook#23353](facebook/react#23353)) //<Andrew Clark>// - **[990098f88](facebook/react@990098f88 )**: Re-arrange main ReactFeatureFlags module ([facebook#23350](facebook/react#23350)) //<Andrew Clark>// - **[1f3f6db73](facebook/react@1f3f6db73 )**: Remove createMutableSource from stable exports ([facebook#23352](facebook/react#23352)) //<Andrew Clark>// - **[587e75930](facebook/react@587e75930 )**: Remove Numeric Fallback of Symbols ([facebook#23348](facebook/react#23348)) //<Sebastian Markbåge>// - **[40351575d](facebook/react@40351575d )**: Split writeChunk into void and return value ([facebook#23343](facebook/react#23343)) //<Sebastian Markbåge>// - **[2c693b2de](facebook/react@2c693b2de )**: Re-add reentrancy avoidance ([facebook#23342](facebook/react#23342)) //<Sebastian Markbåge>// - **[1760b27c0](facebook/react@1760b27c0 )**: Remove ./src/* export from public build ([facebook#23262](facebook/react#23262)) //<Andrew Clark>// - **[552c067bb](facebook/react@552c067bb )**: Remove public export for unstable-shared-subset.js ([facebook#23261](facebook/react#23261)) //<Andrew Clark>// Changelog: [General][Changed] - React Native sync for revisions 4de99b3...1780659 jest_e2e[run_all_tests] Reviewed By: rickhanlonii Differential Revision: D34552175 fbshipit-source-id: f1c831a45f96d335a20c3b4113196e0a42cefc03
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I removed the equivalency of this in #22446. However, I didn't fully understand the intended semantics of the spec but I understand this better now.
The spec is not actually recursive. It won't call pull again inside of a pull. It might not call it inside startWork neither which the original issue avoided. However, it will call pull if you enqueue to the controller without filling up the desired size outside any call.
We could avoid that by returning a Promise from pull that we wait to resolve until we've performed all our pending tasks (i.e. after performWork). That would be the more idiomatic solution. That's a bit more involved but since we know understand it, we can readd the reentrancy hack since we have an easy place to detect it. If anything, it should probably throw or log here otherwise.
I believe this fixes #22772.
This includes the test from #22889 but should ideally have one for Fizz.
cc @jplhomer