const isFunction = (val) => typeof val === "function";
const extend = Object.assign;
const h = (a, b, c) => {}

// @__NO_SIDE_EFFECTS__
function defineComponent(options, extraOptions = {}) {
  // 1. no problem if use a ternary conditional statement
  // return isFunction(options) ? (
  //   /* @__PURE__ */ (() => extend({ name: options.name }, extraOptions, { setup: options }))()
  // ) : options;

  // 2. wrong tree sharking
  if (isFunction(options)) {
    return /* @__PURE__ */ (() => extend({ name: options.name }, extraOptions, { setup: options }))()
  }

  return options
}

const bar = defineComponent(() => h('div', null, 'hello world'))
console.log(bar) // side-effect