Closed
Description
Repro
{
"rules": {
"@typescript-eslint/prefer-function-type": 2
}
}interface Interface {(): this}Expected Result
No error as this can only be used in a class or interface.
Actual Result
/path/to/file.ts
1:22 error Interface has only a call signature - use 'type Interface = () => this' instead @typescript-eslint/prefer-function-type
✖ 1 problem (1 error, 0 warnings)
1 error and 0 warnings potentially fixable with the `--fix` option.
Additional Info
Running eslint with --fix results in this code:
type Interface = () => thiswhich causes a tsc error:
file.ts:1:24 - error TS2526: A 'this' type is available only in a non-static member of a class or interface.
1 type Interface = () => this
~~~~
Found 1 error.
Versions
| package | version |
|---|---|
@typescript-eslint/eslint-plugin |
2.24.0 |
@typescript-eslint/parser |
2.24.0 |
TypeScript |
3.7.5 |
ESLint |
6.8.0 |
node |
12.11.0 |
npm |
6.11.3 |