Rule proposal check void-covariant return types of implemented interfaces and extended classes #1744
Description
What code were you trying to parse?
interface X {
a(): void;
}
class Y implements X {
async a(): Promise<void> {
}
}What did you expect to happen?
This should (configurably) be an error, especially concerning floating promises.
What actually happened?
No error.
Versions
"@typescript-eslint/eslint-plugin": "^2.24.0",
"@typescript-eslint/eslint-plugin-tslint": "^2.24.0",
"@typescript-eslint/parser": "^2.24.0",
"eslint": "^6.8.0",
"eslint-config-prettier": "^6.10.0",
"typescript": "^3.8.3"
Other
This might be related: microsoft/TypeScript#4544