Cant use object's number keys with selection method

[artaommahe]

TypeScript Version: 2.7.1

Search Terms:

Code

class Store<T>
{
    public get<A extends keyof T, B extends keyof T[A]>(key1: A, key2: B): T[typeof key1][typeof key2]
    {
        return <any>void 0;
    }
}

export interface IUsersWordsLoadingState
{
    [ userId: number ]: { wordsets: { smth: boolean } };
}

let initialState: { loadingState: IUsersWordsLoadingState };
let store: Store<typeof initialState>;
store.get('loadingState', 0);

Argument of type '0' is not assignable to parameter of type 'never'.

Expected behavior:

• can use number keys in objects with selection method

Actual behavior:

• cant use number keys in objects with selection method

Playground Link:
https://stackblitz.com/edit/angular-uz9kxg?file=app%2Fapp.component.ts

[mhegazy]

Please see #13715

[typescript-bot]

Automatically closing this issue for housekeeping purposes. The issue labels indicate that it is unactionable at the moment or has already been addressed.