bootstrap-vue-loader/lib/runtime/installDirectives.js

A Webpack plugin for automatic BootstrapVue components and directives importing, mainly for treeshaking

// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).
// This module is a runtime utility for cleaner component module output and will
// be included in the final webpack user bundle.
// Forked directly from Vuetify-loader : https://github.com/vuetifyjs/vuetify-loader/blob/master/lib/runtime/installDirectives.js

module.exports = function installDirectives (component, directives) {
  var options = typeof component.exports === 'function'
    ? component.exports.extendOptions
    : component.options

  if (typeof component.exports === 'function') {
    options.directives = component.exports.options.directives
  }

  options.directives = options.directives || {}

  for (var i in directives) {
    options.directives[i] = options.directives[i] || directives[i]
  }
}