babel/packages/babel-plugin-transform-class-properties/test/fixtures/private/nested-class-extends-computed/exec.js

class Foo {
  #foo = 1;

  test() {
    class Nested extends class {
      [this.#foo] = 2;
    } {
      #foo = 3;
    }

    return new Nested();
  }
}

const f = new Foo();
expect(() => {
  f.test();
}).not.toThrow();