Lint broken with Next.js URL rewrites - TypeError: prevRewrites is not iterable

[AugusDogus]

What version of million are you using?

1.0.0-rc.0

Are you using an SSR adapter? If so, which one?

N/A

What package manager are you using?

pnpm

What operating system are you using?

Windows

What browser are you using?

Chrome

Describe the Bug

Making use of fallback URL rewrites appears to break million lint.

import MillionLint from "@million/lint";
/** @type {import('next').NextConfig} */
const nextConfig = {
  reactStrictMode: true,
  async rewrites() {
    return {
      fallback: [
        {
          source: "/:path*",
          destination: `https://example.com/:path*`,
        },
      ],
    };
  },
};
export default MillionLint.next()(nextConfig);

$ pnpm dev

TypeError: prevRewrites is not iterable
    at Object.rewrites (file:///C:/Users/augie/dev/playground/million-rewrites-example/node_modules/.pnpm/@million+lint@1.0.0-rc.1/node_modules/@million/lint/dist/compiler/index.mjs:3085:14)
    at async loadRewrites (C:\Users\augie\dev\playground\million-rewrites-example\node_modules\.pnpm\next@14.2.3_@babel+core@7.24.5_react-dom@18.3.1_react@18.3.1\node_modules\next\dist\lib\load-custom-routes.js:382:23)
    at async Promise.all (index 1)
    at async loadCustomRoutes (C:\Users\augie\dev\playground\million-rewrites-example\node_modules\.pnpm\next@14.2.3_@babel+core@7.24.5_react-dom@18.3.1_react@18.3.1\node_modules\next\dist\lib\load-custom-routes.js:435:44)
    at async setupFsCheck (C:\Users\augie\dev\playground\million-rewrites-example\node_modules\.pnpm\next@14.2.3_@babel+core@7.24.5_react-dom@18.3.1_react@18.3.1\node_modules\next\dist\server\lib\router-utils\filesystem.js:245:24)
    at async initialize (C:\Users\augie\dev\playground\million-rewrites-example\node_modules\.pnpm\next@14.2.3_@babel+core@7.24.5_react-dom@18.3.1_react@18.3.1\node_modules\next\dist\server\lib\router-server.js:61:23)
    at async Server.<anonymous> (C:\Users\augie\dev\playground\million-rewrites-example\node_modules\.pnpm\next@14.2.3_@babel+core@7.24.5_react-dom@18.3.1_react@18.3.1\node_modules\next\dist\server\lib\start-server.js:249:36)

What's the expected result?

The million lint server should start normally.

Ex - rewrites commented out:

import MillionLint from "@million/lint";
/** @type {import('next').NextConfig} */
const nextConfig = {
  reactStrictMode: true,
  // async rewrites() {
  //   return {
  //     fallback: [
  //       {
  //         source: "/:path*",
  //         destination: `https://example.com/:path*`,
  //       },
  //     ],
  //   };
  // },
};
export default MillionLint.next()(nextConfig);

$ pnpm dev

▲ Next.js 14.2.3
  - Local:        http://localhost:3000

 ✓ Starting...

 ⚡ Million Lint v1.0.0-rc.1
 - Local server: http://localhost:42423

 ✓ Ready in 0.31ms
 ✓ Ready in 2.6s

Link to Minimal Reproducible Example

https://stackblitz.com/github/AugusDogus/million-rewrites-example

Participation

• I am willing to submit a pull request for this issue.

[github-actions]

Thanks for opening this issue! A maintainer will review it soon.

[aidenybai]

Hey @AugusDogus, we just pushed a fix. Can you try upgrading to latest?

npm i @million/lint@latest

[AugusDogus]

Thanks for the quick turnaround! I can confirm the fix works.