Add Option to Disable useExplicitType for Anonymous Functions

[flolu]

I would like to be able to configure useExplicitType such that it ignores anonymous functions.

For example:

(() => "hi")

throws: Missing return type on function lint/nursery/useExplicitType

---

I would like to configure useExplicitType like this:

{
  "linter": {
    "rules": {
      "nursery": {
        "useExplicitType": {
          "level": "error",
          "disableForAnonymousFunctions": true
        }
      }
    }
  }
}

to disable this error.

---

For instance, this is handy for something like:

import { Args, Int, Query, Resolver } from "@nestjs/graphql";

import { Author } from "../models/Author.model.js";

@Resolver(() => Author)
export class AuthorsResolver {
  @Query(() => Author)
  async author(@Args("id", { type: () => Int }) id: number): Promise<Author> {
    //
  }
}

where Biome complains about: { type: () => Int }.

And it is very ugly to type it like this: { type: (): GraphQLScalarType => Int }

[Conaclos]

I think this will be addressed by #4233.

Note that useExplicitTypes is not feature complete yet. See #342.

[flolu]

Ah, I haven't found this existing pull request. But I actually think there is a differnce between anonymous functions and arrow functions! So maybe this can be considered, too.