⚡ Bolt: Add React.memo to QueueEntry - #1256
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💡 What: Wrapped QueueEntry in React.memo and added a displayName. 🎯 Why: QueueEntry is rendered inside a virtualized list and a normal list. When the parent list re-renders, React.memo prevents all unchanged QueueEntry components from re-rendering, which can be a significant performance bottleneck for large lists. 📊 Impact: Reduces unnecessary re-renders of list items when unrelated state changes cause the parent list component to re-render. 🔬 Measurement: Verify using React DevTools Profiler by toggling state that causes the parent to re-render and observing that QueueEntry instances with unchanged props do not re-render. Co-authored-by: kshramt <876546+kshramt@users.noreply.github.com>
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| export const QueueEntry = React.memo( | ||
| (props: { node_id: types.TNodeId; index: number }) => { |
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When the queue's parent rerenders with unchanged node_id and index props, the intended optimization depends on React.memo preventing another QueueEntry render, but this commit changes only the component and adds no test that exercises that scenario. Add a component test that rerenders the parent with identical entry props and verifies that the entry render is skipped, as the repository explicitly requires tests corresponding to every change.
AGENTS.md reference: AGENTS.md:L3-L3
Useful? React with 👍 / 👎.
💡 What: Wrapped QueueEntry in React.memo and added a displayName. 🎯 Why: QueueEntry is rendered inside a virtualized list and a normal list. When the parent list re-renders, React.memo prevents all unchanged QueueEntry components from re-rendering, which can be a significant performance bottleneck for large lists. 📊 Impact: Reduces unnecessary re-renders of list items when unrelated state changes cause the parent list component to re-render. 🔬 Measurement: Verify using React DevTools Profiler by toggling state that causes the parent to re-render and observing that QueueEntry instances with unchanged props do not re-render. Co-authored-by: kshramt <876546+kshramt@users.noreply.github.com>
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Wrapped
QueueEntryinReact.memoto prevent unnecessary list item re-renders when the parent list state changes, improving rendering performance for large lists. Added performance comments anddisplayNameas per Bolt guidelines.PR created automatically by Jules for task 15453613770789741434 started by @kshramt