error TS2385: Overload signatures must all be public, private or protected.

[Howard-Lam-UnitedVanning]

          Are you sure? I mean, there is lots of stuff, which is just a design time illusion. What I would like to achieve with that is, that tsc checks, that I can only call public signatures from outside of a class, while I can also call private signatures from inside the class and protected ones from inside a child class.

Originally posted by @0815fox in https://github.com/microsoft/TypeScript/issues/7577#issuecomment-214605484

export default class NetworkService<R, G = undefined, Q = G, D = Q, RD=R> {
  get(query?: Q|null): Promise<AxiosResponse<R>>
  get(param: G|null, query: Q|null): Promise<AxiosResponse<R>>;
  protected get(param?: G|Q|null, query?: Q|null): Promise<AxiosResponse<R>>;
  async get(params?: G|Q|null, query?: Q|null): Promise<AxiosResponse<R>> {
  }
 }
 export default class FCNetworkService<R, G=undefined, Q=G, D=Q, RD=R> extends NetworkService<R,G,Q,D,RD> {
    override async get(params?: G|Q|null, query?: Q|null) {
        const result = await super.get(params, query);
    }
}

If I don't add an extra line

get(param?: G|Q|null, query?: Q|null): Promise<AxiosResponse<R>>;

I get the error "Argument of type 'G | Q | null | undefined' is not assignable to parameter of type 'G | null'."

But that function signature should not be ever called from the outside because the function body cannot tell if params is actually a query object if the second input is undefined, which is why I have the restriction on the second overlord. That is why I need protected for the third overload.

[RyanCavanaugh]

It looks like this is a question rather than a bug report. This issue tracker is for tracking bugs and active work on TypeScript itself, rather than a general forum for programmers using TypeScript to get help or ask questions.

You can ask questions on sites like Stack Overflow. We are not able to provide one-on-one support on the issue tracker. Please read the issue template carefully - it has important information on what kinds of reports can be acted on here, as well as links to useful TypeScript resources. Thanks!

[Howard-Lam-UnitedVanning]

It looks like this is a question rather than a bug report. This issue tracker is for tracking bugs and active work on TypeScript itself, rather than a general forum for programmers using TypeScript to get help or ask questions.

You can ask questions on sites like Stack Overflow. We are not able to provide one-on-one support on the issue tracker. Please read the issue template carefully - it has important information on what kinds of reports can be acted on here, as well as links to useful TypeScript resources. Thanks!

It isn't a question but that overload signatures currently must all have the same access level but it was asked before to allow different access level and I'm providing a use case for it.

The original post was closed and I could not reply to it, so I had to reply to it in a new issue.

EDIT: never mind this. Rather than having a new issue as a reply to the original issue, I have posted another feature request here https://github.com/microsoft/TypeScript/issues/58316