Skip to content

[Fix] display-name: fix false positive when using memo #3304

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jun 1, 2022
Merged

[Fix] display-name: fix false positive when using memo #3304

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions CHANGELOG.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8,11 +8,13 @@ This change log adheres to standards from [Keep a CHANGELOG](https://keepachange
### Fixed
* [`display-name`]: fix false positive for HOF returning only nulls ([#3291][] @golopot)
* [`jsx-no-leaked-render`]: avoid unnecessary negation operators and ternary branches deletion ([#3299][] @Belco90)
* [`display-name`]: fix false positive when using memo ([#3304][] @golopot)

### Changed
* [Docs] [`jsx-tag-spacing`]: rename option from [#3264][] ([#3294[] @ljharb)
* [Docs] [`jsx-key`]: split the examples ([#3293][] @ioggstream)

[#3304]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3304
[#3299]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3299
[#3294]: https://github.com/jsx-eslint/eslint-plugin-react/issues/3294
[#3293]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3293
Expand Down
2 changes: 1 addition & 1 deletion lib/util/Components.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -515,7 +515,7 @@ function componentRule(rule, context) {

// Case like `React.memo(() => <></>)` or `React.forwardRef(...)`
const pragmaComponentWrapper = utils.getPragmaComponentWrapper(node);
if (pragmaComponentWrapper) {
if (pragmaComponentWrapper && utils.isReturningJSXOrNull(node)) {
return pragmaComponentWrapper;
}

Expand Down
13 changes: 13 additions & 0 deletions tests/lib/rules/display-name.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -588,6 +588,19 @@ ruleTester.run('display-name', rule, {
}
`,
},
{
// issue #3303
code: `
function MyComponent(props) {
return <b>{props.name}</b>;
}

const MemoizedMyComponent = React.memo(
MyComponent,
(prevProps, nextProps) => prevProps.name === nextProps.name
)
`,
},
]),

invalid: parsers.all([
Expand Down