ifui/packages/locale/index.js

import Vue from 'vue'
import deepAssign from '../utils/deep-assign'
import defaultMessage from './lang/zh-CN'

const proto = Vue.prototype
const defaultLang = 'zh-CN'
const locale = {
  install () {
    if (proto.$ifuiLang) {
      return
    }
    Vue.util.defineReactive(proto, '$ifuiLang', defaultLang)
    Vue.util.defineReactive(proto, '$ifuiMessage', { [defaultLang]: defaultMessage })
  },

  use(lang, message) {
    proto.$ifuiLang = lang
    this.add({ [lang]: message })
  },

  add (message = {}) {
    deepAssign(proto.$ifuiMessage, message)
  }
}

locale.install()

export default locale