text: /**
   * Show migrating guide in browser console.
   *
   * Usage:
   * import Migrating from 'vue-creek/src/mixins/migrating';
   *
   * mixins: [Migrating]
   *
   * add getMigratingConfig method for your component.
   *  getMigratingConfig() {
   *    return {
   *      props: {
   *        'allow-no-selection': 'allow-no-selection is removed.',
   *        'selection-mode': 'selection-mode is removed.'
   *      },
   *      events: {
   *        selectionchange: 'selectionchange is renamed to selection-change.'
   *      }
   *    };
   *  },
   */
  export default {
    mounted() {
      if (process.env.NODE_ENV === 'production') return;
      if (!this.$vnode) return;
      const { props = {}, events = {} } = this.getMigratingConfig();
      const { data, componentOptions } = this.$vnode;
      const definedProps = data.attrs || {};
      const definedEvents = componentOptions.listeners || {};
  
      for (let propName in definedProps) {
        if (definedProps.hasOwnProperty(propName) && props[propName]) {
          console.warn(
            `[Vc-Creek Migrating][${this.$options.name}][Attribute]: ${
              props[propName]
            }`
          );
        }
      }
  
      for (let eventName in definedEvents) {
        if (definedEvents.hasOwnProperty(eventName) && events[eventName]) {
          console.warn(
            `[Vc-Creek Migrating][${this.$options.name}][Event]: ${
              events[eventName]
            }`
          );
        }
      }
    },
    methods: {
      getMigratingConfig() {
        return {
          props: {},
          events: {}
        };
      }
    }
  };
  