[Compiler Bug]: TS types missing for `eslint-plugin-react-compiler`

[karlhorky]

What kind of issue is this?

• React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
• babel-plugin-react-compiler (build issue installing or using the Babel plugin)
• eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
• react-compiler-healthcheck (build issue installing or using the healthcheck script)

Link to repro

https://www.typescriptlang.org/play/?#code/JYWwDg9gTgLgBFApgQwMYwMIXMANoqOAMymzgHJEBnXYAOxgFoxcBXAc3saTSdWzB4C5ANwAoIA

Repro steps

1. Configure compilerOptions.checkJs = true in tsconfig.json
2. Import from eslint-plugin-react-compiler in eslint.config.js
3. 💥 Observe the error below

Could not find a declaration file for module 'eslint-plugin-react-compiler'. 'node_modules/eslint-plugin-react-compiler/dist/index.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/eslint-plugin-react-compiler` if it exists or add a new declaration (.d.ts) file containing `declare module 'eslint-plugin-react-compiler';`ts(7016)

How often does this bug happen?

Every time

What version of React are you using?

19.0.0-rc-69d4b800-20241021

What version of React Compiler are you using?

19.0.0-beta-8a03594-20241020

Alternatives Considered

I thought maybe there would be types at @types/eslint-plugin-react-compiler (DefinitelyTyped), but this does not exist

[karlhorky]

Workaround

Create a TypeScript Declaration File in your project:

types/eslint-plugin-react-compiler.d.ts

declare module 'eslint-plugin-react-compiler' {
  import type { ESLint } from 'eslint';

  let plugin: ESLint.Plugin;
  export default plugin;
}

[Svish]

I use this workaround instead, so that I'm informed when they do add types:

// @ts-expect-error
import reactCompiler from 'eslint-plugin-react-compiler';