mirror of
https://github.com/danbulant/oxc
synced 2026-05-24 20:32:10 +00:00
68efcd4000
# What This PR Does
Massively improves all `react-perf` rules
- feat: handle new objects/etc assigned to variables
```tsx
const Foo = () => {
const x = { foo: 'bar' } // <- now reports this new object
return <Bar x={x} />
}
```
- feat: handle new objects/etc in binding patterns
```tsx
const Foo = ({ x = [] }) => {
// ^^^^^^ now reports this new array
return <Bar x={x} />
}
```
-feat: nice and descriptive labels for new objects/etc assigned to intermediate variables
```
⚠ eslint-plugin-react-perf(jsx-no-new-object-as-prop): JSX attribute values should not contain objects created in the same scope.
╭─[jsx_no_new_object_as_prop.tsx:1:27]
1 │ const Foo = () => { const x = {}; return <Bar x={x} /> }
· ┬ ─┬ ┬
· │ │ ╰── And used here
· │ ╰── And assigned a new value here
· ╰── The prop was declared here
╰────
help: simplify props or memoize props in the parent component (https://react.dev/reference/react/memo#my-component-rerenders-when-a-prop-is-an-object-or-array).
```
- feat: consider `Object.assign()` and `Object.create()` as a new object
- feat: consider `arr.[map, filter, concat]` as a new array
- refactor: move shared implementation code to `ReactPerfRule` in `oxc_linter::utils::react_perf`
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|---|---|---|
| .. | ||
| ast | ||
| ast_impl | ||
| generated | ||
| syntax_directed_operations | ||
| ast_builder_impl.rs | ||
| ast_kind_impl.rs | ||
| lib.rs | ||
| precedence.rs | ||
| serialize.rs | ||
| trivia.rs | ||