Before You File a Proposal Please Confirm You Have Done The Following...

• I have searched for related issues and found none that match my proposal.
• I have searched the current rule list and found no rules that match my proposal.
• I have read the FAQ and my problem is not listed.

My proposal is suitable for this project

• I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Link to the rule's documentation

https://typescript-eslint.io/rules/require-await

Description

"require-await" rule asserts an existence of await inside async function. However, when a class method is inherited from a parent async method, sometimes it's inevitable to keep async signature even when the body doesn't have any await. Of course, one workaround is declaring it as a sync function then returning Promise.resolve(...) but that's less ergonomic.

So my proposal is adding an option called, let's say "AllowInOverriddenFunctions", that allows async functions without await for overridden functions. Please take a look at the example below.

Pass

abstract class A {
  abstract func(): Promise<undefined>;
}

class B extends A {
  override async func() {
    return undefined;
  }
}

Additional Info

No response