Schedule prerender after something suspends #30800
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Comparing: 8b4c54c...ff0b173 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 |
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sebmarkbage
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eps1lon
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some nits. Test changes make sense given the explainer.
Still need to wrap my head around
For example, during a transition, if something suspends, we should not speculatively prerender siblings that will be replaced by a fallback in the UI until after the fallback has been shown to the user.
is there a test for this scenario?
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| // If there are no unsuspended or pinged lanes, that implies that we're | ||
| // performing a prerender. | ||
| return unblockedLanes === 0; |
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| return unblockedLanes === 0; | |
| return unblockedLanes === NoLanes; |
| @@ -191,6 +199,7 @@ describe('ReactCache', () => { | |||
| } | |||
| }); | |||
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| // @gate enableSiblingPrerendering | |||
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Shouldn't this be inlined into a different set of assertions?
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An internal test run of this looks good so far (https://fburl.com/diff/bijwbv45) |
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Adds the concept of a "prerender". These special renders are spawned whenever something suspends (and we're not already prerendering). The purpose is to move speculative rendering work into a separate phase that does not block the UI from updating. For example, during a transition, if something suspends, we should not speculatively prerender siblings that will be replaced by a fallback in the UI until *after* the fallback has been shown to the user.
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Adds the concept of a "prerender". These special renders are spawned whenever something suspends (and we're not already prerendering). The purpose is to move speculative rendering work into a separate phase that does not block the UI from updating. For example, during a transition, if something suspends, we should not speculatively prerender siblings that will be replaced by a fallback in the UI until *after* the fallback has been shown to the user. DiffTrain build for commit e10e868.
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Adds the concept of a "prerender". These special renders are spawned whenever something suspends (and we're not already prerendering). The purpose is to move speculative rendering work into a separate phase that does not block the UI from updating. For example, during a transition, if something suspends, we should not speculatively prerender siblings that will be replaced by a fallback in the UI until *after* the fallback has been shown to the user. DiffTrain build for [e10e868](e10e868)
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Adds the concept of a "prerender". These special renders are spawned whenever something suspends (and we're not already prerendering). The purpose is to move speculative rendering work into a separate phase that does not block the UI from updating. For example, during a transition, if something suspends, we should not speculatively prerender siblings that will be replaced by a fallback in the UI until *after* the fallback has been shown to the user.
This was referenced Sep 5, 2024
This was referenced Sep 12, 2024
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**breaking change for canary users: Bumps peer dependency of React from `19.0.0-rc-7771d3a7-20240827` to `19.0.0-rc-94e652d5-20240912`** [diff facebook/react@7771d3a7...94e652d5](facebook/react@7771d3a...94e652d) <details> <summary>React upstream changes</summary> - facebook/react#30952 - facebook/react#30950 - facebook/react#30946 - facebook/react#30934 - facebook/react#30947 - facebook/react#30945 - facebook/react#30938 - facebook/react#30936 - facebook/react#30879 - facebook/react#30888 - facebook/react#30931 - facebook/react#30930 - facebook/react#30832 - facebook/react#30929 - facebook/react#30926 - facebook/react#30925 - facebook/react#30905 - facebook/react#30900 - facebook/react#30910 - facebook/react#30906 - facebook/react#30899 - facebook/react#30919 - facebook/react#30708 - facebook/react#30907 - facebook/react#30897 - facebook/react#30896 - facebook/react#30895 - facebook/react#30887 - facebook/react#30889 - facebook/react#30893 - facebook/react#30892 - facebook/react#30891 - facebook/react#30882 - facebook/react#30881 - facebook/react#30870 - facebook/react#30849 - facebook/react#30878 - facebook/react#30865 - facebook/react#30869 - facebook/react#30875 - facebook/react#30800 - facebook/react#30762 - facebook/react#30831 - facebook/react#30866 - facebook/react#30853 - facebook/react#30850 - facebook/react#30847 - facebook/react#30842 - facebook/react#30837 - facebook/react#30848 - facebook/react#30844 - facebook/react#30839 - facebook/react#30802 - facebook/react#30841 - facebook/react#30827 - facebook/react#30826 - facebook/react#30825 - facebook/react#30824 - facebook/react#30840 - facebook/react#30838 - facebook/react#30836 - facebook/react#30819 - facebook/react#30816 - facebook/react#30814 - facebook/react#30813 - facebook/react#30812 - facebook/react#30811 </details> --------- Co-authored-by: vercel-release-bot <infra+release@vercel.com>
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Adds the concept of a "prerender". These special renders are spawned whenever something suspends (and we're not already prerendering). The purpose is to move speculative rendering work into a separate phase that does not block the UI from updating. For example, during a transition, if something suspends, we should not speculatively prerender siblings that will be replaced by a fallback in the UI until *after* the fallback has been shown to the user. [ghstack-poisoned]
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Part of a series of PRs related to sibling prerendering. I have the implementation working locally, but still working on splitting it up into a reasonable sequence of steps so we can land it incrementally. There's likely to be some regressions due to the scope of the change, so I've also done my best to keep the change behind a feature flag.
Opening this in draft mode while I continue to work on updating the test suite, which requires many changes.
Adds the concept of a "prerender". These special renders are spawned whenever something suspends (and we're not already prerendering).
The purpose is to move speculative rendering work into a separate phase that does not block the UI from updating. For example, during a transition, if something suspends, we should not speculatively prerender siblings that will be replaced by a fallback in the UI until after the fallback has been shown to the user.