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[native] Memoize construction of `sidebars` in `ChatThreadListItem`
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Authored by atul on Sep 7 2023, 10:51 AM.
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Details

Summary

This was getting re-rendered every time which recursively led to ChatThreadListSidebar, etc getting re-rendered every time. This change means ChatThreadListSidebar will render only once (unless something relevant changes).

Before:

014d54.png (1×2 px, 648 KB)

After:

8cb34d.png (1×2 px, 892 KB)


Depends on D9100

Test Plan

Things continue to work as expected.

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arcpatch-D9102 (branched from master)
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atul published this revision for review.Sep 7 2023, 10:55 AM
tomek added inline comments.
native/chat/chat-thread-list-sidebar.react.js
69–72 ↗(On Diff #30851)

Maybe we can wrap SidebarItem with React.memo?

This revision is now accepted and ready to land.Sep 8 2023, 2:26 AM
native/chat/chat-thread-list-sidebar.react.js
69–72 ↗(On Diff #30851)

7cd38c.png (828×1 px, 113 KB)

SidebarItem was memoized in previous diff

This revision was landed with ongoing or failed builds.Sep 8 2023, 3:05 PM
This revision was automatically updated to reflect the committed changes.
native/chat/chat-thread-list-sidebar.react.js
69–72 ↗(On Diff #30851)

If it is memoized, then what's the benefit of wrapping it with useMemo?