【12.2】effect 函数新旧版本差异

[hengistchan]

vuejs/core@87f69d 在这个提交中，scheduler 函数作为回调函数不会将副作用函数作为参数传递，需要从 this 里面获取

  function mountComponent(vnode, container, anchor) {
    const componentOptions = vnode.type
    const { render, data } = componentOptions
    const state = reactive(data())
    effect(() => {
      console.log(1);
      const subTree = render.call(state, state)
      patch(null, subTree, container, anchor)
    }, {
      scheduler() {
        const { fn } = this
        queueJob(fn)
      }
    })
  }