mixinGenericity.ts

interface Test<T> {
    g?: Test<T>;

}

function mixinPerson<T extends Constructor<{}>>(Base: T) {
    return class Base {
        constructor(public name: string) { }
    }
}

function mixinPersonWithTest<T extends Constructor<{}>>(Base: T) {
    return class Base implements Test<T> {
        g?: Test<T>;
        constructor(public name: string) { }
    }
}

type Constructor<T> = new (...args: any[]) => T;

function Tagged<T extends Constructor<Test<{}>>>(Base: T) {
    return class extends Base {
      _tag: string;
      constructor(...args: any[]) {
        super(...args);
        this._tag = "";
        this.g?.g?.g?.g?.g
      }
    }
  }


class Customer extends Tagged(mixinPersonWithTest(Object)) {
    accountBalance: number = 1;
  }