Version

3.0.2

Steps to reproduce

parent component

  created() {
    console.log("created base");
  },
  setup(props, context) {
    console.log("setup base");
  }
}

child component

import SDBase from "../../base/src/index.vue";

  extends: SDBase,
  created() {
    console.log("created child");
  },
  setup(props, context) {
    console.log("setup child");
  }
}

Google Chrome console:

What is expected?

The method " setup(props, context) " of the parent component can be called.

What is actually happening?

The method " setup(props, context) " of the parent component does not be called.

This is expected behavior. setup() is not part of the options API and is excluded from any form of options-based composition/inheritance.

If you use setup(), composition should happen via Composition API.