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Avoid unconditionally unwrapping the Result - UI Stack System #11575

Merged
merged 1 commit into from
Jan 29, 2024
Merged

Avoid unconditionally unwrapping the Result - UI Stack System #11575

merged 1 commit into from
Jan 29, 2024

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garychia
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Objective

Solution

  • Avoid unconditionally unwrapping the Result in the ui_stack_system function.

@JMS55 JMS55 added C-Bug An unexpected or incorrect behavior A-UI Graphical user interfaces, styles, layouts, and widgets labels Jan 28, 2024
@Hexorg
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Hexorg commented Jan 28, 2024

Ah thank you for fixing this. So On deeper digging I found that this error is caused because despawning a child does not automatically remove the child from its Parent, and so UI stack gets re-populated with removed entity because parent still thinks they have a child. I think I better fix would be to remove children from parents on despawn.

@alice-i-cecile
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I think I better fix would be to remove children from parents on despawn.

IMO we should do both. I'm happy with this PR as a first step, and then that as a more complex and controversial follow-up fix.

james7132
james7132 approved these changes Jan 29, 2024
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I'm in agreement that we should have despawn remove the references in relations, but that might be more involved than what is reasonable for this PR.

Also generally avoiding panics is good for performance too: less codegen.

@alice-i-cecile alice-i-cecile added the S-Ready-For-Final-Review This PR has been approved by the community. It's ready for a maintainer to consider merging it label Jan 29, 2024
@james7132 james7132 added this pull request to the merge queue Jan 29, 2024
Merged via the queue into bevyengine:main with commit fb124c3 Jan 29, 2024
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@garychia garychia deleted the ui_node_unwrap branch January 29, 2024 06:22
tjamaan pushed a commit to tjamaan/bevy that referenced this pull request Feb 6, 2024
@garychia @tjamaan
Avoid unconditionally unwrapping the Result - UI Stack System (bevyen…
d45c780 
…gine#11575)

# Objective

- Fixes bevyengine#11572

## Solution

- Avoid unconditionally unwrapping the `Result` in the `ui_stack_system`
function.
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@james7132 james7132 james7132 approved these changes

@alice-i-cecile alice-i-cecile alice-i-cecile approved these changes

@JMS55 JMS55 JMS55 approved these changes

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A-UI Graphical user interfaces, styles, layouts, and widgets C-Bug An unexpected or incorrect behavior S-Ready-For-Final-Review This PR has been approved by the community. It's ready for a maintainer to consider merging it
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Successfully merging this pull request may close these issues.

ui_focus_system crashes if UI Node is removed by clicking on it.
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@garychia @Hexorg @alice-i-cecile @james7132 @JMS55