vuetify/src/mixins/registrable.js

Vue.js 2 Semantic Component Framework

import { consoleWarn } from '../util/console'

function generateWarning (child, parent) {
  return () => consoleWarn(`The ${child} component must be used inside a ${parent}`)
}

export function inject (namespace, child, parent) {
  const defaultImpl = child && parent ? {
    register: generateWarning(child, parent),
    unregister: generateWarning(child, parent)
  } : null

  return {
    name: 'registrable-inject',

    inject: {
      [namespace]: {
        default: defaultImpl
      }
    }
  }
}

export function provide (namespace) {
  return {
    name: 'registrable-provide',

    methods: {
      register: null,
      unregister: null
    },
    provide () {
      return {
        [namespace]: {
          register: this.register,
          unregister: this.unregister
        }
      }
    }
  }
}