[Float][Fiber] properly cleanup instances when switching between instance and Resource modes #29628
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| // This must come at the very end of the complete phase. | ||
| bubbleProperties(workInProgress); | ||
| return null; |
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Previously bubbleProperties was called before preloadInstance/preloadResource but these functions mutate flags and so I suspenct that was incorrect all along
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| <link rel="stylesheet" href="b" data-precedence="default" /> | ||
| <link rel="stylesheet" href="c" data-precedence="default" /> |
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If we'd render <link rel="stylesheet" href="b" precedence="default" /> again, we'd see
<link rel="stylesheet" href="b" data-precedence="default" />
<link rel="stylesheet" href="c" data-precedence="default" />
<link rel="stylesheet" href="b" data-precedence="default" />here?
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No, we should never load the same stylesheet more than once
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| it('can update link tags from Resource to instance and back', async () => { |
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Where is the and back part in this test? I thought the first render renders a link tag to Resource, the second render to instance but I'm not seeing a third render.
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I think this is meant to be read as "can update link tags from Resource to instance and vice versa"?
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Yeah, that was my original poorly worded intent but I think it's probably worth another round trip give how finicky the codepaths here are
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Thanks for pointing this out btw, found a bug when going "back again" :)
…ance and Resource modes HostHoistable is unfortunately complicated because any give fiber may be an Instance or a Resource and the lifetime of the fiber does not align with the lifetime of the underyling mode. Conceptually it'd be better if Resources were keyed intrinsically rather than using the key in JSX so we could have reconciliation deal with disposal of unmounted fibers. Maybe this is worth pursuing. However the current implementation models the inner identity during the render and commit phase so it needs to do some bookkeeping of things like the stateNode where other fiber types don't need to @sokra pointed out some suspciously broken looking code in commit work where we assign to the stateNode. It looks like an oversight in the original implementation but on further investigation there are ohter ways in which we don't properly clean up on identity transition during update. This change adds extra logic to do proper clean. If you go from instance to Resource or vice versa we need to better model the unmount semantics and ensure there is no lingering stateNode
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Closing in favor of #29693 |
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HostHoistable is unfortunately complicated because any give fiber may be an Instance or a Resource and the lifetime of the fiber does not align with the lifetime of the underyling mode. Conceptually it'd be better if Resources were keyed intrinsically rather than using the key in JSX so we could have reconciliation deal with disposal of unmounted fibers. Maybe this is worth pursuing. However the current implementation models the inner identity during the render and commit phase so it needs to do some bookkeeping of things like the stateNode where other fiber types don't need to
@sokra pointed out some suspiciously broken looking code in commit work where we assign to the stateNode. It looks like an oversight in the original implementation but on further investigation there are other ways in which we don't properly clean up on identity transition during update.
This change adds extra logic to do proper clean. If you go from instance to Resource or vice versa we need to better model the unmount semantics and ensure there is no lingering stateNode