Typescript-eslint: [no-empty-interface] Add exception for circular references

Created on 31 Aug 2019 · 3Comments · Source: typescript-eslint/typescript-eslint

Repro

{
  "rules": {
    "@typescript-eslint/no-empty-interface": ["error"]
  }
}

interface RecursiveStrings extends Array<RecursiveStrings | string> {}

Expected Result

No error, because the recommended alternative type RecursiveStrings = Array<RecursiveStrings | string> is not valid. If the extended type contains the current type, the error should not appear.

Actual Result

error: An interface declaring no members is equivalent to its supertype (@typescript-eslint/no-empty-interface)

Additional Info

This also applies to more complex circular structures which might be harder to detect, but the form demonstrated above is the most common.

Versions

| package | version |
| ---------------------------------- | ------- |
| @typescript-eslint/eslint-plugin | 1.13.0 |
| @typescript-eslint/parser | 1.13.0 |
| TypeScript | 3.5.3 |
| ESLint | 5.16.0 |
| node | 12.9.1 |
| npm | 6.10.3 |