<script>
export default {
  name: 'RouteView',
  props: {
    keepAlive: {
      type: Boolean,
      default: true
    }
  },
  data() {
    return {}
  },
  render() {
    const {
      $route: { meta }
    } = this
    const inKeep = (
      <keep-alive>
        <router-view />
      </keep-alive>
    )
    const notKeep = <router-view />
    // 应当全部组件皆缓存，否则会导致切换页面后页面还原成原始状态
    // 若确实不需要，可改为 return meta.keepAlive ? inKeep : notKeep
    if (meta.keepAlive === false) {
      return notKeep
    }
    return this.keepAlive || meta.keepAlive ? inKeep : notKeep
  }
}
</script>
