github.com/insionng/yougam@v0.0.0-20170714101924-2bc18d833463/themes/wind/static/libs/vue-1.0.24/src/directives/public/ref.js (about)

     1  import { warn } from '../../util/index'
     2  
     3  export default {
     4    bind () {
     5      process.env.NODE_ENV !== 'production' && warn(
     6        'v-ref:' + this.arg + ' must be used on a child ' +
     7        'component. Found on <' + this.el.tagName.toLowerCase() + '>.',
     8        this.vm
     9      )
    10    }
    11  }