progress

src/runtime/instance/index.js

@@ -1,15 +1,22 @@
 import { initState, stateMixin } from './state'
 import { initRender, renderMixin } from './render'
 import { initEvents, eventsMixin } from './events'
+import { initLifecycle, lifecycleMixin } from './lifecycle'
+import { nextTick } from '../util/index'
 
 export default function Vue (options) {
   this.$options = options
-  this._watchers = []
   initState(this)
   initEvents(this)
+  initLifecycle(this)
   initRender(this)
 }
 
 stateMixin(Vue)
 eventsMixin(Vue)
+lifecycleMixin(Vue)
 renderMixin(Vue)
+
+Vue.prototype.$nextTick = function (fn) {
+  nextTick(fn, this)
+}

src/runtime/instance/lifecycle.js

@@ -0,0 +1,13 @@
+export function initLifecycle (vm) {
+
+}
+
+export function lifecycleMixin (Vue) {
+  Vue.prototype.$mount = function () {
+
+  }
+
+  Vue.prototype.$destroy = function () {
+
+  }
+}

src/runtime/instance/state.js

@@ -11,6 +11,7 @@ import {
 } from '../util/index'
 
 export function initState (vm) {
+  vm._watchers = []
   initData(vm)
   initComputed(vm)
   initMethods(vm)