Bug props in composition-api beta 14

[pinghe]

export default {
  props: {
    filter: {
      type: Object,
      default: function() {
        return {
          c1: 'c1',
        }
      },
    },
  },
  setup(props) {
    console.log('props is: ', isRef(props), isReactive(props))
    watch(props, () => {  // error 
      console.log(props)
    }
  }
}

beta11: props is: false true
beta14: props is: false false // watch --> error

[antfu]

What's the error you have?

[LinusBorg]

the props argument should be detected as a reactive, but isn't.

That's because we use ob do detect that, and the props argument isn't a real Vue.observable, it's "faked":

composition-api/src/mixin.ts

Lines 85 to 86 in 3a1d992

	// fake reactive for `toRefs(props)`
	def(props, PropsReactive, true)

...and therefore has no ob and is not detected as a reactive object by isReactive()