Description

When allowConstantExport: true is set, react/only-export-components permits all export const declarations without checking whether the exported value is actually a React component.

eslint-plugin-react-refresh correctly checks whether the value is a component and reports an error when it is not.

Reproduction

https://github.com/eai04191/oxlint-only-export-components-repro

git clone https://github.com/eai04191/oxlint-only-export-components-repro
cd oxlint-only-export-components-repro
npm ci

# oxlint: no error (bug)
npx oxlint -c oxlint.config.json should-error.tsx

# eslint: reports error (correct)
npx eslint -c eslint.config.mjs should-error.tsx

The repo also has a CI workflow that demonstrates the difference.

should-error.tsx

function createFileRoute(_path: string) {
    return (_opts: Record<string, unknown>) => ({ _path });
}

export const Route = createFileRoute("/example")({
    component: RouteComponent,
});

function RouteComponent() {
    return <div>Hello</div>;
}

Config

{
    "plugins": ["react"],
    "rules": {
        "react/only-export-components": ["error", { "allowConstantExport": true }]
    }
}

Expected

should-error.tsx should report an error because export const Route = createFileRoute(...)({...}) is not a React component — it's a function call returning a plain object.

Actual

No error reported. allowConstantExport: true permits all export const regardless of whether the value is a component.

Context

This matters for TanStack Router file-based routing. createFileRoute() returns a Route object, not a React component. When a component is colocated in the same file, changes to non-component properties (like loader) won't trigger HMR correctly. The lint rule should warn about this.

eslint-plugin-react-refresh added detection for this pattern in v0.5.0:
https://github.com/ArnaudBarre/eslint-plugin-react-refresh/releases/tag/v0.5.0

Versions

• oxlint: 1.56.0
• eslint-plugin-react-refresh: 0.5.2