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Remove check in renderDidSuspendDelayIfPossible #25630

Merged
merged 1 commit into from
Nov 3, 2022
Merged

Remove check in renderDidSuspendDelayIfPossible #25630

merged 1 commit into from
Nov 3, 2022

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acdlite
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@acdlite acdlite commented Nov 3, 2022 •
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I don't think we need this anymore. It was added originally because RootSuspended would take priority over RootSuspendedWithDelay. But we've since changed it: any "bad" fallback state is permitted to block a "good" fallback state.

The other status flags that this check used to account for are RootDidNotComplete and RootFatalErrored:

  • RootFatalErrored is like an invariant violation, it means something went really wrong already and we can't recover from it
  • RootCompleted and RootDidNotComplete are only set at the very end of the work loop, there's no way for renderDidSuspendDelayIfPossible to sneak in after that (at least none that I can think of — it's only called from the render phase)

So I think we can just delete this.

It's entirely possible there's some scenario I haven't considered, though, which is why I'm submitting this change as its own PR. To preserve the ability to bisect to it later.

@facebook-github-bot facebook-github-bot added CLA Signed React Core Team Opened by a member of the React Core Team labels Nov 3, 2022
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sizebot commented Nov 3, 2022 •
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Comparing: 1a90262...daac82f

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 = 153.66 kB 153.64 kB = 48.90 kB 48.89 kB
oss-experimental/react-dom/cjs/react-dom.production.min.js = 155.58 kB 155.56 kB = 49.51 kB 49.50 kB
facebook-www/ReactDOM-prod.classic.js = 530.48 kB 530.35 kB = 94.67 kB 94.65 kB
facebook-www/ReactDOM-prod.modern.js = 515.74 kB 515.60 kB = 92.49 kB 92.47 kB
facebook-www/ReactDOMForked-prod.classic.js = 530.48 kB 530.35 kB = 94.67 kB 94.65 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against daac82f

@sebmarkbage
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The case where this check is valuable is if the root is in RootFatalErrored, RootCompleted, RootDidNotComplete. It shouldn't regress to RootSuspendedWithDelay in those cases. So the question is, is it impossible to call renderDidSuspendDelayIfPossible when those are already set?

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acdlite commented Nov 3, 2022 •
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The case where this check is valuable is if the root is in RootFatalErrored, RootCompleted, RootDidNotComplete. It shouldn't regress to RootSuspendedWithDelay in those cases. So the question is, is it impossible to call renderDidSuspendDelayIfPossible when those are already set?

  • RootFatalErrored is like an invariant violation, it means something went really wrong already and we can't recover from it
  • RootCompleted and RootDidNotComplete are only set at the very end of the work loop, there's no way for renderDidSuspendDelayIfPossible to sneak in after that (at least none that I can think of — it's only called from the render phase)

It's entirely possible there's some scenario I haven't considered, though, which is why I submitted this change as its own PR. To preserve the ability to bisect to it later.

[I updated the PR description with this additional context]

@acdlite
Remove check in renderDidSuspendDelayIfPossible
daac82f 
I don't think we need this anymore. It was added originally because
RootSuspended would take priority over RootSuspendedWithDelay. But we've
since changed it: any "bad" fallback state is permitted to block a
"good" fallback state.

The other status flags that this check used to account for are
RootDidNotComplete and RootFatalErrored:

- RootFatalErrored is like an invariant violation, it means something
  went really wrong already and we can't recover from it
- RootCompleted and RootDidNotComplete are only set at the very end of
  the work loop, there's no way for renderDidSuspendDelayIfPossible to
  sneak in after that (at least none that I can think of — it's only
  called from the render phase)

So I think we can just delete this.

It's entirely possible there's some scenario I haven't considered,
though, which is why I'm submitting this change as its own PR. To
preserve the ability to bisect to it later.
@acdlite acdlite force-pushed the remove-exit-status-check branch from 0ba2036 to daac82f Compare November 3, 2022 19:52
@acdlite acdlite merged commit df61e70 into facebook:main Nov 3, 2022
GrinZero added a commit to GrinZero/react that referenced this pull request Nov 7, 2022
@GrinZero
Merge branch 'main' of ssh://github.com/GrinZero/react
6049258 
* 'main' of ssh://github.com/GrinZero/react: (163 commits)
  Do not unmount layout effects if ancestor Offscreen is hidden (facebook#25628)
  Remove check in renderDidSuspendDelayIfPossible (facebook#25630)
  [ServerRenderer] Move fizz external runtime implementation to react-dom-bindings (facebook#25617)
  Unwrap sync resolved thenables without suspending  (facebook#25615)
  refactor isHostResourceType to not receive the context from reconciler and not leak types (facebook#25610)
  Make host context use null as empty and only error in dev (facebook#25609)
  [Float] handle resource Resource creation inside svg context (facebook#25599)
  Allow uncached IO to stablize (facebook#25561)
  [ServerRenderer] Setup for adding data attributes streaming format (facebook#25567)
  Do not unmount layout effects on initial Offscreen mount (facebook#25592)
  Fix type check for null (facebook#25595)
  Clean up vestige of useOpaqueIdentifier (facebook#25587)
  Extract logic for detecting bad fallback to helper
  Split suspended work loop logic into separate functions
  In work loop, add enum of reasons for suspending
  Strict Mode: Reuse memoized result from first pass (facebook#25583)
  Detect and warn if use(promise) is wrapped with try/catch block (facebook#25543)
  Remove old react-fetch, react-fs and react-pg libraries (facebook#25577)
  Try assigning fetch to globalThis if global assignment fails (facebook#25571)
  [Float] handle noscript context for Resources (facebook#25559)
  ...

# Conflicts:
#	scripts/rollup/build.js
facebook-github-bot pushed a commit to facebook/react-native that referenced this pull request Nov 7, 2022
@sammy-SC @facebook-github-bot
React Native sync for revisions ab075a2...4bd245e
7884445 
Summary:
This sync includes the following changes:
- **[4bd245e9e](facebook/react@4bd245e9e )**: Do not unmount layout effects if ancestor Offscreen is hidden ([#25628](facebook/react#25628)) //<Samuel Susla>//
- **[df61e708c](facebook/react@df61e708c )**: Remove check in renderDidSuspendDelayIfPossible ([#25630](facebook/react#25630)) //<Andrew Clark>//
- **[1a08f1478](facebook/react@1a08f1478 )**: [ServerRenderer] Move fizz external runtime implementation to react-dom-bindings ([#25617](facebook/react#25617)) //<mofeiZ>//
- **[1a902623a](facebook/react@1a902623a )**: Unwrap sync resolved thenables without suspending  ([#25615](facebook/react#25615)) //<Andrew Clark>//
- **[4ea063b56](facebook/react@4ea063b56 )**: refactor isHostResourceType to not receive the context from reconciler and not leak types ([#25610](facebook/react#25610)) //<Josh Story>//
- **[8e69bc45a](facebook/react@8e69bc45a )**: Make host context use null as empty and only error in dev ([#25609](facebook/react#25609)) //<Sebastian Markbåge>//
- **[5f7ef8c4c](facebook/react@5f7ef8c4c )**: [Float] handle resource Resource creation inside svg context ([#25599](facebook/react#25599)) //<Josh Story>//
- **[36426e6cb](facebook/react@36426e6cb )**: Allow uncached IO to stablize ([#25561](facebook/react#25561)) //<Andrew Clark>//
- **[6883d7944](facebook/react@6883d7944 )**: [ServerRenderer] Setup for adding data attributes streaming format ([#25567](facebook/react#25567)) //<mofeiZ>//

Changelog:
[General][Changed] - React Native sync for revisions ab075a2...4bd245e

jest_e2e[run_all_tests]

Reviewed By: GijsWeterings

Differential Revision: D41028209

fbshipit-source-id: a67fdcd441ddd50784f7c1ce402eaecdb5e3126d
mofeiZ pushed a commit to mofeiZ/react that referenced this pull request Nov 17, 2022
@acdlite @mofeiZ
Remove check in renderDidSuspendDelayIfPossible (facebook#25630)
8c86508 
I don't think we need this anymore. It was added originally because
RootSuspended would take priority over RootSuspendedWithDelay. But we've
since changed it: any "bad" fallback state is permitted to block a
"good" fallback state.

The other status flags that this check used to account for are
RootDidNotComplete and RootFatalErrored:

- RootFatalErrored is like an invariant violation, it means something
went really wrong already and we can't recover from it
- RootCompleted and RootDidNotComplete are only set at the very end of
the work loop, there's no way for renderDidSuspendDelayIfPossible to
sneak in after that (at least none that I can think of — it's only
called from the render phase)

So I think we can just delete this.

It's entirely possible there's some scenario I haven't considered,
though, which is why I'm submitting this change as its own PR. To
preserve the ability to bisect to it later.
@kassens kassens mentioned this pull request Nov 17, 2022
Closed
rickhanlonii pushed a commit that referenced this pull request Dec 3, 2022
@acdlite @rickhanlonii
Remove check in renderDidSuspendDelayIfPossible (#25630)
1bbb353 
I don't think we need this anymore. It was added originally because
RootSuspended would take priority over RootSuspendedWithDelay. But we've
since changed it: any "bad" fallback state is permitted to block a
"good" fallback state.

The other status flags that this check used to account for are
RootDidNotComplete and RootFatalErrored:

- RootFatalErrored is like an invariant violation, it means something
went really wrong already and we can't recover from it
- RootCompleted and RootDidNotComplete are only set at the very end of
the work loop, there's no way for renderDidSuspendDelayIfPossible to
sneak in after that (at least none that I can think of — it's only
called from the render phase)

So I think we can just delete this.

It's entirely possible there's some scenario I haven't considered,
though, which is why I'm submitting this change as its own PR. To
preserve the ability to bisect to it later.
OlimpiaZurek pushed a commit to OlimpiaZurek/react-native that referenced this pull request May 22, 2023
@sammy-SC @OlimpiaZurek
React Native sync for revisions ab075a2...4bd245e
c71f69f 
Summary:
This sync includes the following changes:
- **[4bd245e9e](facebook/react@4bd245e9e )**: Do not unmount layout effects if ancestor Offscreen is hidden ([facebook#25628](facebook/react#25628)) //<Samuel Susla>//
- **[df61e708c](facebook/react@df61e708c )**: Remove check in renderDidSuspendDelayIfPossible ([facebook#25630](facebook/react#25630)) //<Andrew Clark>//
- **[1a08f1478](facebook/react@1a08f1478 )**: [ServerRenderer] Move fizz external runtime implementation to react-dom-bindings ([facebook#25617](facebook/react#25617)) //<mofeiZ>//
- **[1a902623a](facebook/react@1a902623a )**: Unwrap sync resolved thenables without suspending  ([facebook#25615](facebook/react#25615)) //<Andrew Clark>//
- **[4ea063b56](facebook/react@4ea063b56 )**: refactor isHostResourceType to not receive the context from reconciler and not leak types ([facebook#25610](facebook/react#25610)) //<Josh Story>//
- **[8e69bc45a](facebook/react@8e69bc45a )**: Make host context use null as empty and only error in dev ([facebook#25609](facebook/react#25609)) //<Sebastian Markbåge>//
- **[5f7ef8c4c](facebook/react@5f7ef8c4c )**: [Float] handle resource Resource creation inside svg context ([facebook#25599](facebook/react#25599)) //<Josh Story>//
- **[36426e6cb](facebook/react@36426e6cb )**: Allow uncached IO to stablize ([facebook#25561](facebook/react#25561)) //<Andrew Clark>//
- **[6883d7944](facebook/react@6883d7944 )**: [ServerRenderer] Setup for adding data attributes streaming format ([facebook#25567](facebook/react#25567)) //<mofeiZ>//

Changelog:
[General][Changed] - React Native sync for revisions ab075a2...4bd245e

jest_e2e[run_all_tests]

Reviewed By: GijsWeterings

Differential Revision: D41028209

fbshipit-source-id: a67fdcd441ddd50784f7c1ce402eaecdb5e3126d
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