first commit

node_modules/vue-router/src/components/link.js

@@ -0,0 +1,224 @@
+/* @flow */
+
+import { createRoute, isSameRoute, isIncludedRoute } from '../util/route'
+import { extend } from '../util/misc'
+import { normalizeLocation } from '../util/location'
+import { warn } from '../util/warn'
+
+// work around weird flow bug
+const toTypes: Array<Function> = [String, Object]
+const eventTypes: Array<Function> = [String, Array]
+
+const noop = () => {}
+
+let warnedCustomSlot
+let warnedTagProp
+let warnedEventProp
+
+export default {
+  name: 'RouterLink',
+  props: {
+    to: {
+      type: toTypes,
+      required: true
+    },
+    tag: {
+      type: String,
+      default: 'a'
+    },
+    custom: Boolean,
+    exact: Boolean,
+    exactPath: Boolean,
+    append: Boolean,
+    replace: Boolean,
+    activeClass: String,
+    exactActiveClass: String,
+    ariaCurrentValue: {
+      type: String,
+      default: 'page'
+    },
+    event: {
+      type: eventTypes,
+      default: 'click'
+    }
+  },
+  render (h: Function) {
+    const router = this.$router
+    const current = this.$route
+    const { location, route, href } = router.resolve(
+      this.to,
+      current,
+      this.append
+    )
+
+    const classes = {}
+    const globalActiveClass = router.options.linkActiveClass
+    const globalExactActiveClass = router.options.linkExactActiveClass
+    // Support global empty active class
+    const activeClassFallback =
+      globalActiveClass == null ? 'router-link-active' : globalActiveClass
+    const exactActiveClassFallback =
+      globalExactActiveClass == null
+        ? 'router-link-exact-active'
+        : globalExactActiveClass
+    const activeClass =
+      this.activeClass == null ? activeClassFallback : this.activeClass
+    const exactActiveClass =
+      this.exactActiveClass == null
+        ? exactActiveClassFallback
+        : this.exactActiveClass
+
+    const compareTarget = route.redirectedFrom
+      ? createRoute(null, normalizeLocation(route.redirectedFrom), null, router)
+      : route
+
+    classes[exactActiveClass] = isSameRoute(current, compareTarget, this.exactPath)
+    classes[activeClass] = this.exact || this.exactPath
+      ? classes[exactActiveClass]
+      : isIncludedRoute(current, compareTarget)
+
+    const ariaCurrentValue = classes[exactActiveClass] ? this.ariaCurrentValue : null
+
+    const handler = e => {
+      if (guardEvent(e)) {
+        if (this.replace) {
+          router.replace(location, noop)
+        } else {
+          router.push(location, noop)
+        }
+      }
+    }
+
+    const on = { click: guardEvent }
+    if (Array.isArray(this.event)) {
+      this.event.forEach(e => {
+        on[e] = handler
+      })
+    } else {
+      on[this.event] = handler
+    }
+
+    const data: any = { class: classes }
+
+    const scopedSlot =
+      !this.$scopedSlots.$hasNormal &&
+      this.$scopedSlots.default &&
+      this.$scopedSlots.default({
+        href,
+        route,
+        navigate: handler,
+        isActive: classes[activeClass],
+        isExactActive: classes[exactActiveClass]
+      })
+
+    if (scopedSlot) {
+      if (process.env.NODE_ENV !== 'production' && !this.custom) {
+        !warnedCustomSlot && warn(false, 'In Vue Router 4, the v-slot API will by default wrap its content with an <a> element. Use the custom prop to remove this warning:\n<router-link v-slot="{ navigate, href }" custom></router-link>\n')
+        warnedCustomSlot = true
+      }
+      if (scopedSlot.length === 1) {
+        return scopedSlot[0]
+      } else if (scopedSlot.length > 1 || !scopedSlot.length) {
+        if (process.env.NODE_ENV !== 'production') {
+          warn(
+            false,
+            `<router-link> with to="${
+              this.to
+            }" is trying to use a scoped slot but it didn't provide exactly one child. Wrapping the content with a span element.`
+          )
+        }
+        return scopedSlot.length === 0 ? h() : h('span', {}, scopedSlot)
+      }
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      if ('tag' in this.$options.propsData && !warnedTagProp) {
+        warn(
+          false,
+          `<router-link>'s tag prop is deprecated and has been removed in Vue Router 4. Use the v-slot API to remove this warning: https://next.router.vuejs.org/guide/migration/#removal-of-event-and-tag-props-in-router-link.`
+        )
+        warnedTagProp = true
+      }
+      if ('event' in this.$options.propsData && !warnedEventProp) {
+        warn(
+          false,
+          `<router-link>'s event prop is deprecated and has been removed in Vue Router 4. Use the v-slot API to remove this warning: https://next.router.vuejs.org/guide/migration/#removal-of-event-and-tag-props-in-router-link.`
+        )
+        warnedEventProp = true
+      }
+    }
+
+    if (this.tag === 'a') {
+      data.on = on
+      data.attrs = { href, 'aria-current': ariaCurrentValue }
+    } else {
+      // find the first <a> child and apply listener and href
+      const a = findAnchor(this.$slots.default)
+      if (a) {
+        // in case the <a> is a static node
+        a.isStatic = false
+        const aData = (a.data = extend({}, a.data))
+        aData.on = aData.on || {}
+        // transform existing events in both objects into arrays so we can push later
+        for (const event in aData.on) {
+          const handler = aData.on[event]
+          if (event in on) {
+            aData.on[event] = Array.isArray(handler) ? handler : [handler]
+          }
+        }
+        // append new listeners for router-link
+        for (const event in on) {
+          if (event in aData.on) {
+            // on[event] is always a function
+            aData.on[event].push(on[event])
+          } else {
+            aData.on[event] = handler
+          }
+        }
+
+        const aAttrs = (a.data.attrs = extend({}, a.data.attrs))
+        aAttrs.href = href
+        aAttrs['aria-current'] = ariaCurrentValue
+      } else {
+        // doesn't have <a> child, apply listener to self
+        data.on = on
+      }
+    }
+
+    return h(this.tag, data, this.$slots.default)
+  }
+}
+
+export function guardEvent (e: any) {
+  // don't redirect with control keys
+  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) return
+  // don't redirect when preventDefault called
+  if (e.defaultPrevented) return
+  // don't redirect on right click
+  if (e.button !== undefined && e.button !== 0) return
+  // don't redirect if `target="_blank"`
+  if (e.currentTarget && e.currentTarget.getAttribute) {
+    const target = e.currentTarget.getAttribute('target')
+    if (/\b_blank\b/i.test(target)) return
+  }
+  // this may be a Weex event which doesn't have this method
+  if (e.preventDefault) {
+    e.preventDefault()
+  }
+  return true
+}
+
+function findAnchor (children) {
+  if (children) {
+    let child
+    for (let i = 0; i < children.length; i++) {
+      child = children[i]
+      if (child.tag === 'a') {
+        return child
+      }
+      if (child.children && (child = findAnchor(child.children))) {
+        return child
+      }
+    }
+  }
+}

node_modules/vue-router/src/components/view.js

@@ -0,0 +1,155 @@
+import { warn } from '../util/warn'
+import { extend } from '../util/misc'
+import { handleRouteEntered } from '../util/route'
+
+export default {
+  name: 'RouterView',
+  functional: true,
+  props: {
+    name: {
+      type: String,
+      default: 'default'
+    }
+  },
+  render (_, { props, children, parent, data }) {
+    // used by devtools to display a router-view badge
+    data.routerView = true
+
+    // directly use parent context's createElement() function
+    // so that components rendered by router-view can resolve named slots
+    const h = parent.$createElement
+    const name = props.name
+    const route = parent.$route
+    const cache = parent._routerViewCache || (parent._routerViewCache = {})
+
+    // determine current view depth, also check to see if the tree
+    // has been toggled inactive but kept-alive.
+    let depth = 0
+    let inactive = false
+    while (parent && parent._routerRoot !== parent) {
+      const vnodeData = parent.$vnode ? parent.$vnode.data : {}
+      if (vnodeData.routerView) {
+        depth++
+      }
+      if (vnodeData.keepAlive && parent._directInactive && parent._inactive) {
+        inactive = true
+      }
+      parent = parent.$parent
+    }
+    data.routerViewDepth = depth
+
+    // render previous view if the tree is inactive and kept-alive
+    if (inactive) {
+      const cachedData = cache[name]
+      const cachedComponent = cachedData && cachedData.component
+      if (cachedComponent) {
+        // #2301
+        // pass props
+        if (cachedData.configProps) {
+          fillPropsinData(cachedComponent, data, cachedData.route, cachedData.configProps)
+        }
+        return h(cachedComponent, data, children)
+      } else {
+        // render previous empty view
+        return h()
+      }
+    }
+
+    const matched = route.matched[depth]
+    const component = matched && matched.components[name]
+
+    // render empty node if no matched route or no config component
+    if (!matched || !component) {
+      cache[name] = null
+      return h()
+    }
+
+    // cache component
+    cache[name] = { component }
+
+    // attach instance registration hook
+    // this will be called in the instance's injected lifecycle hooks
+    data.registerRouteInstance = (vm, val) => {
+      // val could be undefined for unregistration
+      const current = matched.instances[name]
+      if (
+        (val && current !== vm) ||
+        (!val && current === vm)
+      ) {
+        matched.instances[name] = val
+      }
+    }
+
+    // also register instance in prepatch hook
+    // in case the same component instance is reused across different routes
+    ;(data.hook || (data.hook = {})).prepatch = (_, vnode) => {
+      matched.instances[name] = vnode.componentInstance
+    }
+
+    // register instance in init hook
+    // in case kept-alive component be actived when routes changed
+    data.hook.init = (vnode) => {
+      if (vnode.data.keepAlive &&
+        vnode.componentInstance &&
+        vnode.componentInstance !== matched.instances[name]
+      ) {
+        matched.instances[name] = vnode.componentInstance
+      }
+
+      // if the route transition has already been confirmed then we weren't
+      // able to call the cbs during confirmation as the component was not
+      // registered yet, so we call it here.
+      handleRouteEntered(route)
+    }
+
+    const configProps = matched.props && matched.props[name]
+    // save route and configProps in cache
+    if (configProps) {
+      extend(cache[name], {
+        route,
+        configProps
+      })
+      fillPropsinData(component, data, route, configProps)
+    }
+
+    return h(component, data, children)
+  }
+}
+
+function fillPropsinData (component, data, route, configProps) {
+  // resolve props
+  let propsToPass = data.props = resolveProps(route, configProps)
+  if (propsToPass) {
+    // clone to prevent mutation
+    propsToPass = data.props = extend({}, propsToPass)
+    // pass non-declared props as attrs
+    const attrs = data.attrs = data.attrs || {}
+    for (const key in propsToPass) {
+      if (!component.props || !(key in component.props)) {
+        attrs[key] = propsToPass[key]
+        delete propsToPass[key]
+      }
+    }
+  }
+}
+
+function resolveProps (route, config) {
+  switch (typeof config) {
+    case 'undefined':
+      return
+    case 'object':
+      return config
+    case 'function':
+      return config(route)
+    case 'boolean':
+      return config ? route.params : undefined
+    default:
+      if (process.env.NODE_ENV !== 'production') {
+        warn(
+          false,
+          `props in "${route.path}" is a ${typeof config}, ` +
+          `expecting an object, function or boolean.`
+        )
+      }
+  }
+}

node_modules/vue-router/src/composables/globals.js

@@ -0,0 +1,34 @@
+import {
+  getCurrentInstance,
+  shallowReactive,
+  effectScope
+} from 'vue'
+import { throwNoCurrentInstance } from './utils'
+
+export function useRouter () {
+  if (process.env.NODE_ENV !== 'production') {
+    throwNoCurrentInstance('useRouter')
+  }
+
+  return getCurrentInstance().proxy.$root.$router
+}
+
+export function useRoute () {
+  if (process.env.NODE_ENV !== 'production') {
+    throwNoCurrentInstance('useRoute')
+  }
+
+  const root = getCurrentInstance().proxy.$root
+  if (!root._$route) {
+    const route = effectScope(true).run(() =>
+      shallowReactive(Object.assign({}, root.$router.currentRoute))
+    )
+    root._$route = route
+
+    root.$router.afterEach(to => {
+      Object.assign(route, to)
+    })
+  }
+
+  return root._$route
+}

node_modules/vue-router/src/composables/guards.js

@@ -0,0 +1,68 @@
+import { getCurrentInstance, onUnmounted } from 'vue'
+import { throwNoCurrentInstance } from './utils'
+import { useRouter } from './globals'
+
+export function onBeforeRouteUpdate (guard) {
+  if (process.env.NODE_ENV !== 'production') {
+    throwNoCurrentInstance('onBeforeRouteUpdate')
+  }
+
+  return useFilteredGuard(guard, isUpdateNavigation)
+}
+function isUpdateNavigation (to, from, depth) {
+  const toMatched = to.matched
+  const fromMatched = from.matched
+  return (
+    toMatched.length >= depth &&
+    toMatched
+      .slice(0, depth + 1)
+      .every((record, i) => record === fromMatched[i])
+  )
+}
+
+function isLeaveNavigation (to, from, depth) {
+  const toMatched = to.matched
+  const fromMatched = from.matched
+  return toMatched.length < depth || toMatched[depth] !== fromMatched[depth]
+}
+
+export function onBeforeRouteLeave (guard) {
+  if (process.env.NODE_ENV !== 'production') {
+    throwNoCurrentInstance('onBeforeRouteLeave')
+  }
+
+  return useFilteredGuard(guard, isLeaveNavigation)
+}
+
+const noop = () => {}
+function useFilteredGuard (guard, fn) {
+  const instance = getCurrentInstance()
+  const router = useRouter()
+
+  let target = instance.proxy
+  // find the nearest RouterView to know the depth
+  while (
+    target &&
+    target.$vnode &&
+    target.$vnode.data &&
+    target.$vnode.data.routerViewDepth == null
+  ) {
+    target = target.$parent
+  }
+
+  const depth =
+    target && target.$vnode && target.$vnode.data
+      ? target.$vnode.data.routerViewDepth
+      : null
+
+  if (depth != null) {
+    const removeGuard = router.beforeEach((to, from, next) => {
+      return fn(to, from, depth) ? guard(to, from, next) : next()
+    })
+
+    onUnmounted(removeGuard)
+    return removeGuard
+  }
+
+  return noop
+}

node_modules/vue-router/src/composables/index.js

@@ -0,0 +1,3 @@
+export * from './guards'
+export * from './globals'
+export * from './useLink'

node_modules/vue-router/src/composables/useLink.js

@@ -0,0 +1,113 @@
+import { computed, unref } from 'vue'
+import { guardEvent } from '../components/link'
+import { throwNoCurrentInstance } from './utils'
+import { useRouter, useRoute } from './globals'
+
+function includesParams (outer, inner) {
+  for (const key in inner) {
+    const innerValue = inner[key]
+    const outerValue = outer[key]
+    if (typeof innerValue === 'string') {
+      if (innerValue !== outerValue) return false
+    } else {
+      if (
+        !Array.isArray(outerValue) ||
+        outerValue.length !== innerValue.length ||
+        innerValue.some((value, i) => value !== outerValue[i])
+      ) {
+        return false
+      }
+    }
+  }
+
+  return true
+}
+
+// helpers from vue router 4
+
+function isSameRouteLocationParamsValue (a, b) {
+  return Array.isArray(a)
+    ? isEquivalentArray(a, b)
+    : Array.isArray(b)
+      ? isEquivalentArray(b, a)
+      : a === b
+}
+
+function isEquivalentArray (a, b) {
+  return Array.isArray(b)
+    ? a.length === b.length && a.every((value, i) => value === b[i])
+    : a.length === 1 && a[0] === b
+}
+
+export function isSameRouteLocationParams (a, b) {
+  if (Object.keys(a).length !== Object.keys(b).length) return false
+
+  for (const key in a) {
+    if (!isSameRouteLocationParamsValue(a[key], b[key])) return false
+  }
+
+  return true
+}
+
+export function useLink (props) {
+  if (process.env.NODE_ENV !== 'production') {
+    throwNoCurrentInstance('useLink')
+  }
+
+  const router = useRouter()
+  const currentRoute = useRoute()
+
+  const resolvedRoute = computed(() => router.resolve(unref(props.to), currentRoute))
+
+  const activeRecordIndex = computed(() => {
+    const route = resolvedRoute.value.route
+    const { matched } = route
+    const { length } = matched
+    const routeMatched = matched[length - 1]
+    const currentMatched = currentRoute.matched
+    if (!routeMatched || !currentMatched.length) return -1
+    const index = currentMatched.indexOf(routeMatched)
+    if (index > -1) return index
+    // possible parent record
+    const parentRecord = currentMatched[currentMatched.length - 2]
+
+    return (
+      // we are dealing with nested routes
+      length > 1 &&
+        // if the parent and matched route have the same path, this link is
+        // referring to the empty child. Or we currently are on a different
+        // child of the same parent
+        parentRecord && parentRecord === routeMatched.parent
+    )
+  })
+
+  const isActive = computed(
+    () =>
+      activeRecordIndex.value > -1 &&
+      includesParams(currentRoute.params, resolvedRoute.value.route.params)
+  )
+  const isExactActive = computed(
+    () =>
+      activeRecordIndex.value > -1 &&
+      activeRecordIndex.value === currentRoute.matched.length - 1 &&
+      isSameRouteLocationParams(currentRoute.params, resolvedRoute.value.route.params)
+  )
+
+  const navigate = e => {
+    const href = resolvedRoute.value.route
+    if (guardEvent(e)) {
+      return props.replace
+        ? router.replace(href)
+        : router.push(href)
+    }
+    return Promise.resolve()
+  }
+
+  return {
+    href: computed(() => resolvedRoute.value.href),
+    route: computed(() => resolvedRoute.value.route),
+    isExactActive,
+    isActive,
+    navigate
+  }
+}

node_modules/vue-router/src/composables/utils.js

@@ -0,0 +1,11 @@
+import { getCurrentInstance } from 'vue'
+
+// dev only warn if no current instance
+
+export function throwNoCurrentInstance (method) {
+  if (!getCurrentInstance()) {
+    throw new Error(
+      `[vue-router]: Missing current instance. ${method}() must be called inside <script setup> or setup().`
+    )
+  }
+}

node_modules/vue-router/src/create-matcher.js

@@ -0,0 +1,226 @@
+/* @flow */
+
+import type VueRouter from './index'
+import { resolvePath } from './util/path'
+import { assert, warn } from './util/warn'
+import { createRoute } from './util/route'
+import { fillParams } from './util/params'
+import { createRouteMap } from './create-route-map'
+import { normalizeLocation } from './util/location'
+import { decode } from './util/query'
+
+export type Matcher = {
+  match: (raw: RawLocation, current?: Route, redirectedFrom?: Location) => Route;
+  addRoutes: (routes: Array<RouteConfig>) => void;
+  addRoute: (parentNameOrRoute: string | RouteConfig, route?: RouteConfig) => void;
+  getRoutes: () => Array<RouteRecord>;
+};
+
+export function createMatcher (
+  routes: Array<RouteConfig>,
+  router: VueRouter
+): Matcher {
+  const { pathList, pathMap, nameMap } = createRouteMap(routes)
+
+  function addRoutes (routes) {
+    createRouteMap(routes, pathList, pathMap, nameMap)
+  }
+
+  function addRoute (parentOrRoute, route) {
+    const parent = (typeof parentOrRoute !== 'object') ? nameMap[parentOrRoute] : undefined
+    // $flow-disable-line
+    createRouteMap([route || parentOrRoute], pathList, pathMap, nameMap, parent)
+
+    // add aliases of parent
+    if (parent && parent.alias.length) {
+      createRouteMap(
+        // $flow-disable-line route is defined if parent is
+        parent.alias.map(alias => ({ path: alias, children: [route] })),
+        pathList,
+        pathMap,
+        nameMap,
+        parent
+      )
+    }
+  }
+
+  function getRoutes () {
+    return pathList.map(path => pathMap[path])
+  }
+
+  function match (
+    raw: RawLocation,
+    currentRoute?: Route,
+    redirectedFrom?: Location
+  ): Route {
+    const location = normalizeLocation(raw, currentRoute, false, router)
+    const { name } = location
+
+    if (name) {
+      const record = nameMap[name]
+      if (process.env.NODE_ENV !== 'production') {
+        warn(record, `Route with name '${name}' does not exist`)
+      }
+      if (!record) return _createRoute(null, location)
+      const paramNames = record.regex.keys
+        .filter(key => !key.optional)
+        .map(key => key.name)
+
+      if (typeof location.params !== 'object') {
+        location.params = {}
+      }
+
+      if (currentRoute && typeof currentRoute.params === 'object') {
+        for (const key in currentRoute.params) {
+          if (!(key in location.params) && paramNames.indexOf(key) > -1) {
+            location.params[key] = currentRoute.params[key]
+          }
+        }
+      }
+
+      location.path = fillParams(record.path, location.params, `named route "${name}"`)
+      return _createRoute(record, location, redirectedFrom)
+    } else if (location.path) {
+      location.params = {}
+      for (let i = 0; i < pathList.length; i++) {
+        const path = pathList[i]
+        const record = pathMap[path]
+        if (matchRoute(record.regex, location.path, location.params)) {
+          return _createRoute(record, location, redirectedFrom)
+        }
+      }
+    }
+    // no match
+    return _createRoute(null, location)
+  }
+
+  function redirect (
+    record: RouteRecord,
+    location: Location
+  ): Route {
+    const originalRedirect = record.redirect
+    let redirect = typeof originalRedirect === 'function'
+      ? originalRedirect(createRoute(record, location, null, router))
+      : originalRedirect
+
+    if (typeof redirect === 'string') {
+      redirect = { path: redirect }
+    }
+
+    if (!redirect || typeof redirect !== 'object') {
+      if (process.env.NODE_ENV !== 'production') {
+        warn(
+          false, `invalid redirect option: ${JSON.stringify(redirect)}`
+        )
+      }
+      return _createRoute(null, location)
+    }
+
+    const re: Object = redirect
+    const { name, path } = re
+    let { query, hash, params } = location
+    query = re.hasOwnProperty('query') ? re.query : query
+    hash = re.hasOwnProperty('hash') ? re.hash : hash
+    params = re.hasOwnProperty('params') ? re.params : params
+
+    if (name) {
+      // resolved named direct
+      const targetRecord = nameMap[name]
+      if (process.env.NODE_ENV !== 'production') {
+        assert(targetRecord, `redirect failed: named route "${name}" not found.`)
+      }
+      return match({
+        _normalized: true,
+        name,
+        query,
+        hash,
+        params
+      }, undefined, location)
+    } else if (path) {
+      // 1. resolve relative redirect
+      const rawPath = resolveRecordPath(path, record)
+      // 2. resolve params
+      const resolvedPath = fillParams(rawPath, params, `redirect route with path "${rawPath}"`)
+      // 3. rematch with existing query and hash
+      return match({
+        _normalized: true,
+        path: resolvedPath,
+        query,
+        hash
+      }, undefined, location)
+    } else {
+      if (process.env.NODE_ENV !== 'production') {
+        warn(false, `invalid redirect option: ${JSON.stringify(redirect)}`)
+      }
+      return _createRoute(null, location)
+    }
+  }
+
+  function alias (
+    record: RouteRecord,
+    location: Location,
+    matchAs: string
+  ): Route {
+    const aliasedPath = fillParams(matchAs, location.params, `aliased route with path "${matchAs}"`)
+    const aliasedMatch = match({
+      _normalized: true,
+      path: aliasedPath
+    })
+    if (aliasedMatch) {
+      const matched = aliasedMatch.matched
+      const aliasedRecord = matched[matched.length - 1]
+      location.params = aliasedMatch.params
+      return _createRoute(aliasedRecord, location)
+    }
+    return _createRoute(null, location)
+  }
+
+  function _createRoute (
+    record: ?RouteRecord,
+    location: Location,
+    redirectedFrom?: Location
+  ): Route {
+    if (record && record.redirect) {
+      return redirect(record, redirectedFrom || location)
+    }
+    if (record && record.matchAs) {
+      return alias(record, location, record.matchAs)
+    }
+    return createRoute(record, location, redirectedFrom, router)
+  }
+
+  return {
+    match,
+    addRoute,
+    getRoutes,
+    addRoutes
+  }
+}
+
+function matchRoute (
+  regex: RouteRegExp,
+  path: string,
+  params: Object
+): boolean {
+  const m = path.match(regex)
+
+  if (!m) {
+    return false
+  } else if (!params) {
+    return true
+  }
+
+  for (let i = 1, len = m.length; i < len; ++i) {
+    const key = regex.keys[i - 1]
+    if (key) {
+      // Fix #1994: using * with props: true generates a param named 0
+      params[key.name || 'pathMatch'] = typeof m[i] === 'string' ? decode(m[i]) : m[i]
+    }
+  }
+
+  return true
+}
+
+function resolveRecordPath (path: string, record: RouteRecord): string {
+  return resolvePath(path, record.parent ? record.parent.path : '/', true)
+}

node_modules/vue-router/src/create-route-map.js

@@ -0,0 +1,220 @@
+/* @flow */
+
+import Regexp from 'path-to-regexp'
+import { cleanPath } from './util/path'
+import { assert, warn } from './util/warn'
+
+export function createRouteMap (
+  routes: Array<RouteConfig>,
+  oldPathList?: Array<string>,
+  oldPathMap?: Dictionary<RouteRecord>,
+  oldNameMap?: Dictionary<RouteRecord>,
+  parentRoute?: RouteRecord
+): {
+  pathList: Array<string>,
+  pathMap: Dictionary<RouteRecord>,
+  nameMap: Dictionary<RouteRecord>
+} {
+  // the path list is used to control path matching priority
+  const pathList: Array<string> = oldPathList || []
+  // $flow-disable-line
+  const pathMap: Dictionary<RouteRecord> = oldPathMap || Object.create(null)
+  // $flow-disable-line
+  const nameMap: Dictionary<RouteRecord> = oldNameMap || Object.create(null)
+
+  routes.forEach(route => {
+    addRouteRecord(pathList, pathMap, nameMap, route, parentRoute)
+  })
+
+  // ensure wildcard routes are always at the end
+  for (let i = 0, l = pathList.length; i < l; i++) {
+    if (pathList[i] === '*') {
+      pathList.push(pathList.splice(i, 1)[0])
+      l--
+      i--
+    }
+  }
+
+  if (process.env.NODE_ENV === 'development') {
+    // warn if routes do not include leading slashes
+    const found = pathList
+    // check for missing leading slash
+      .filter(path => path && path.charAt(0) !== '*' && path.charAt(0) !== '/')
+
+    if (found.length > 0) {
+      const pathNames = found.map(path => `- ${path}`).join('\n')
+      warn(false, `Non-nested routes must include a leading slash character. Fix the following routes: \n${pathNames}`)
+    }
+  }
+
+  return {
+    pathList,
+    pathMap,
+    nameMap
+  }
+}
+
+function addRouteRecord (
+  pathList: Array<string>,
+  pathMap: Dictionary<RouteRecord>,
+  nameMap: Dictionary<RouteRecord>,
+  route: RouteConfig,
+  parent?: RouteRecord,
+  matchAs?: string
+) {
+  const { path, name } = route
+  if (process.env.NODE_ENV !== 'production') {
+    assert(path != null, `"path" is required in a route configuration.`)
+    assert(
+      typeof route.component !== 'string',
+      `route config "component" for path: ${String(
+        path || name
+      )} cannot be a ` + `string id. Use an actual component instead.`
+    )
+
+    warn(
+      // eslint-disable-next-line no-control-regex
+      !/[^\u0000-\u007F]+/.test(path),
+      `Route with path "${path}" contains unencoded characters, make sure ` +
+        `your path is correctly encoded before passing it to the router. Use ` +
+        `encodeURI to encode static segments of your path.`
+    )
+  }
+
+  const pathToRegexpOptions: PathToRegexpOptions =
+    route.pathToRegexpOptions || {}
+  const normalizedPath = normalizePath(path, parent, pathToRegexpOptions.strict)
+
+  if (typeof route.caseSensitive === 'boolean') {
+    pathToRegexpOptions.sensitive = route.caseSensitive
+  }
+
+  const record: RouteRecord = {
+    path: normalizedPath,
+    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),
+    components: route.components || { default: route.component },
+    alias: route.alias
+      ? typeof route.alias === 'string'
+        ? [route.alias]
+        : route.alias
+      : [],
+    instances: {},
+    enteredCbs: {},
+    name,
+    parent,
+    matchAs,
+    redirect: route.redirect,
+    beforeEnter: route.beforeEnter,
+    meta: route.meta || {},
+    props:
+      route.props == null
+        ? {}
+        : route.components
+          ? route.props
+          : { default: route.props }
+  }
+
+  if (route.children) {
+    // Warn if route is named, does not redirect and has a default child route.
+    // If users navigate to this route by name, the default child will
+    // not be rendered (GH Issue #629)
+    if (process.env.NODE_ENV !== 'production') {
+      if (
+        route.name &&
+        !route.redirect &&
+        route.children.some(child => /^\/?$/.test(child.path))
+      ) {
+        warn(
+          false,
+          `Named Route '${route.name}' has a default child route. ` +
+            `When navigating to this named route (:to="{name: '${
+              route.name
+            }'}"), ` +
+            `the default child route will not be rendered. Remove the name from ` +
+            `this route and use the name of the default child route for named ` +
+            `links instead.`
+        )
+      }
+    }
+    route.children.forEach(child => {
+      const childMatchAs = matchAs
+        ? cleanPath(`${matchAs}/${child.path}`)
+        : undefined
+      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs)
+    })
+  }
+
+  if (!pathMap[record.path]) {
+    pathList.push(record.path)
+    pathMap[record.path] = record
+  }
+
+  if (route.alias !== undefined) {
+    const aliases = Array.isArray(route.alias) ? route.alias : [route.alias]
+    for (let i = 0; i < aliases.length; ++i) {
+      const alias = aliases[i]
+      if (process.env.NODE_ENV !== 'production' && alias === path) {
+        warn(
+          false,
+          `Found an alias with the same value as the path: "${path}". You have to remove that alias. It will be ignored in development.`
+        )
+        // skip in dev to make it work
+        continue
+      }
+
+      const aliasRoute = {
+        path: alias,
+        children: route.children
+      }
+      addRouteRecord(
+        pathList,
+        pathMap,
+        nameMap,
+        aliasRoute,
+        parent,
+        record.path || '/' // matchAs
+      )
+    }
+  }
+
+  if (name) {
+    if (!nameMap[name]) {
+      nameMap[name] = record
+    } else if (process.env.NODE_ENV !== 'production' && !matchAs) {
+      warn(
+        false,
+        `Duplicate named routes definition: ` +
+          `{ name: "${name}", path: "${record.path}" }`
+      )
+    }
+  }
+}
+
+function compileRouteRegex (
+  path: string,
+  pathToRegexpOptions: PathToRegexpOptions
+): RouteRegExp {
+  const regex = Regexp(path, [], pathToRegexpOptions)
+  if (process.env.NODE_ENV !== 'production') {
+    const keys: any = Object.create(null)
+    regex.keys.forEach(key => {
+      warn(
+        !keys[key.name],
+        `Duplicate param keys in route with path: "${path}"`
+      )
+      keys[key.name] = true
+    })
+  }
+  return regex
+}
+
+function normalizePath (
+  path: string,
+  parent?: RouteRecord,
+  strict?: boolean
+): string {
+  if (!strict) path = path.replace(/\/$/, '')
+  if (path[0] === '/') return path
+  if (parent == null) return path
+  return cleanPath(`${parent.path}/${path}`)
+}

node_modules/vue-router/src/entries/cjs.js

@@ -0,0 +1,3 @@
+import VueRouter from '../router'
+
+export default VueRouter

node_modules/vue-router/src/entries/esm.js

@@ -0,0 +1,12 @@
+import VueRouter from '../router'
+
+export const version = '__VERSION__'
+export { isNavigationFailure, NavigationFailureType } from '../util/errors'
+export { START as START_LOCATION } from '../util/route'
+export { default as RouterLink } from '../components/link'
+export { default as RouterView } from '../components/view'
+
+// we can't add the other composables here because people could still be using an older version of vue and that would
+// create a compilation error trying to import from vue
+
+export default VueRouter

node_modules/vue-router/src/history/abstract.js

@@ -0,0 +1,72 @@
+/* @flow */
+
+import type Router from '../index'
+import { History } from './base'
+import { NavigationFailureType, isNavigationFailure } from '../util/errors'
+
+export class AbstractHistory extends History {
+  index: number
+  stack: Array<Route>
+
+  constructor (router: Router, base: ?string) {
+    super(router, base)
+    this.stack = []
+    this.index = -1
+  }
+
+  push (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    this.transitionTo(
+      location,
+      route => {
+        this.stack = this.stack.slice(0, this.index + 1).concat(route)
+        this.index++
+        onComplete && onComplete(route)
+      },
+      onAbort
+    )
+  }
+
+  replace (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    this.transitionTo(
+      location,
+      route => {
+        this.stack = this.stack.slice(0, this.index).concat(route)
+        onComplete && onComplete(route)
+      },
+      onAbort
+    )
+  }
+
+  go (n: number) {
+    const targetIndex = this.index + n
+    if (targetIndex < 0 || targetIndex >= this.stack.length) {
+      return
+    }
+    const route = this.stack[targetIndex]
+    this.confirmTransition(
+      route,
+      () => {
+        const prev = this.current
+        this.index = targetIndex
+        this.updateRoute(route)
+        this.router.afterHooks.forEach(hook => {
+          hook && hook(route, prev)
+        })
+      },
+      err => {
+        if (isNavigationFailure(err, NavigationFailureType.duplicated)) {
+          this.index = targetIndex
+        }
+      }
+    )
+  }
+
+  getCurrentLocation () {
+    const current = this.stack[this.stack.length - 1]
+    return current ? current.fullPath : '/'
+  }
+
+  ensureURL () {
+    // noop
+  }
+}

node_modules/vue-router/src/history/base.js

@@ -0,0 +1,384 @@
+/* @flow */
+
+import { _Vue } from '../install'
+import type Router from '../index'
+import { inBrowser } from '../util/dom'
+import { runQueue } from '../util/async'
+import { warn } from '../util/warn'
+import { START, isSameRoute, handleRouteEntered } from '../util/route'
+import {
+  flatten,
+  flatMapComponents,
+  resolveAsyncComponents
+} from '../util/resolve-components'
+import {
+  createNavigationDuplicatedError,
+  createNavigationCancelledError,
+  createNavigationRedirectedError,
+  createNavigationAbortedError,
+  isError,
+  isNavigationFailure,
+  NavigationFailureType
+} from '../util/errors'
+import { handleScroll } from '../util/scroll'
+
+export class History {
+  router: Router
+  base: string
+  current: Route
+  pending: ?Route
+  cb: (r: Route) => void
+  ready: boolean
+  readyCbs: Array<Function>
+  readyErrorCbs: Array<Function>
+  errorCbs: Array<Function>
+  listeners: Array<Function>
+  cleanupListeners: Function
+
+  // implemented by sub-classes
+  +go: (n: number) => void
+  +push: (loc: RawLocation, onComplete?: Function, onAbort?: Function) => void
+  +replace: (
+    loc: RawLocation,
+    onComplete?: Function,
+    onAbort?: Function
+  ) => void
+  +ensureURL: (push?: boolean) => void
+  +getCurrentLocation: () => string
+  +setupListeners: Function
+
+  constructor (router: Router, base: ?string) {
+    this.router = router
+    this.base = normalizeBase(base)
+    // start with a route object that stands for "nowhere"
+    this.current = START
+    this.pending = null
+    this.ready = false
+    this.readyCbs = []
+    this.readyErrorCbs = []
+    this.errorCbs = []
+    this.listeners = []
+  }
+
+  listen (cb: Function) {
+    this.cb = cb
+  }
+
+  onReady (cb: Function, errorCb: ?Function) {
+    if (this.ready) {
+      cb()
+    } else {
+      this.readyCbs.push(cb)
+      if (errorCb) {
+        this.readyErrorCbs.push(errorCb)
+      }
+    }
+  }
+
+  onError (errorCb: Function) {
+    this.errorCbs.push(errorCb)
+  }
+
+  transitionTo (
+    location: RawLocation,
+    onComplete?: Function,
+    onAbort?: Function
+  ) {
+    let route
+    // catch redirect option https://github.com/vuejs/vue-router/issues/3201
+    try {
+      route = this.router.match(location, this.current)
+    } catch (e) {
+      this.errorCbs.forEach(cb => {
+        cb(e)
+      })
+      // Exception should still be thrown
+      throw e
+    }
+    const prev = this.current
+    this.confirmTransition(
+      route,
+      () => {
+        this.updateRoute(route)
+        onComplete && onComplete(route)
+        this.ensureURL()
+        this.router.afterHooks.forEach(hook => {
+          hook && hook(route, prev)
+        })
+
+        // fire ready cbs once
+        if (!this.ready) {
+          this.ready = true
+          this.readyCbs.forEach(cb => {
+            cb(route)
+          })
+        }
+      },
+      err => {
+        if (onAbort) {
+          onAbort(err)
+        }
+        if (err && !this.ready) {
+          // Initial redirection should not mark the history as ready yet
+          // because it's triggered by the redirection instead
+          // https://github.com/vuejs/vue-router/issues/3225
+          // https://github.com/vuejs/vue-router/issues/3331
+          if (!isNavigationFailure(err, NavigationFailureType.redirected) || prev !== START) {
+            this.ready = true
+            this.readyErrorCbs.forEach(cb => {
+              cb(err)
+            })
+          }
+        }
+      }
+    )
+  }
+
+  confirmTransition (route: Route, onComplete: Function, onAbort?: Function) {
+    const current = this.current
+    this.pending = route
+    const abort = err => {
+      // changed after adding errors with
+      // https://github.com/vuejs/vue-router/pull/3047 before that change,
+      // redirect and aborted navigation would produce an err == null
+      if (!isNavigationFailure(err) && isError(err)) {
+        if (this.errorCbs.length) {
+          this.errorCbs.forEach(cb => {
+            cb(err)
+          })
+        } else {
+          if (process.env.NODE_ENV !== 'production') {
+            warn(false, 'uncaught error during route navigation:')
+          }
+          console.error(err)
+        }
+      }
+      onAbort && onAbort(err)
+    }
+    const lastRouteIndex = route.matched.length - 1
+    const lastCurrentIndex = current.matched.length - 1
+    if (
+      isSameRoute(route, current) &&
+      // in the case the route map has been dynamically appended to
+      lastRouteIndex === lastCurrentIndex &&
+      route.matched[lastRouteIndex] === current.matched[lastCurrentIndex]
+    ) {
+      this.ensureURL()
+      if (route.hash) {
+        handleScroll(this.router, current, route, false)
+      }
+      return abort(createNavigationDuplicatedError(current, route))
+    }
+
+    const { updated, deactivated, activated } = resolveQueue(
+      this.current.matched,
+      route.matched
+    )
+
+    const queue: Array<?NavigationGuard> = [].concat(
+      // in-component leave guards
+      extractLeaveGuards(deactivated),
+      // global before hooks
+      this.router.beforeHooks,
+      // in-component update hooks
+      extractUpdateHooks(updated),
+      // in-config enter guards
+      activated.map(m => m.beforeEnter),
+      // async components
+      resolveAsyncComponents(activated)
+    )
+
+    const iterator = (hook: NavigationGuard, next) => {
+      if (this.pending !== route) {
+        return abort(createNavigationCancelledError(current, route))
+      }
+      try {
+        hook(route, current, (to: any) => {
+          if (to === false) {
+            // next(false) -> abort navigation, ensure current URL
+            this.ensureURL(true)
+            abort(createNavigationAbortedError(current, route))
+          } else if (isError(to)) {
+            this.ensureURL(true)
+            abort(to)
+          } else if (
+            typeof to === 'string' ||
+            (typeof to === 'object' &&
+              (typeof to.path === 'string' || typeof to.name === 'string'))
+          ) {
+            // next('/') or next({ path: '/' }) -> redirect
+            abort(createNavigationRedirectedError(current, route))
+            if (typeof to === 'object' && to.replace) {
+              this.replace(to)
+            } else {
+              this.push(to)
+            }
+          } else {
+            // confirm transition and pass on the value
+            next(to)
+          }
+        })
+      } catch (e) {
+        abort(e)
+      }
+    }
+
+    runQueue(queue, iterator, () => {
+      // wait until async components are resolved before
+      // extracting in-component enter guards
+      const enterGuards = extractEnterGuards(activated)
+      const queue = enterGuards.concat(this.router.resolveHooks)
+      runQueue(queue, iterator, () => {
+        if (this.pending !== route) {
+          return abort(createNavigationCancelledError(current, route))
+        }
+        this.pending = null
+        onComplete(route)
+        if (this.router.app) {
+          this.router.app.$nextTick(() => {
+            handleRouteEntered(route)
+          })
+        }
+      })
+    })
+  }
+
+  updateRoute (route: Route) {
+    this.current = route
+    this.cb && this.cb(route)
+  }
+
+  setupListeners () {
+    // Default implementation is empty
+  }
+
+  teardown () {
+    // clean up event listeners
+    // https://github.com/vuejs/vue-router/issues/2341
+    this.listeners.forEach(cleanupListener => {
+      cleanupListener()
+    })
+    this.listeners = []
+
+    // reset current history route
+    // https://github.com/vuejs/vue-router/issues/3294
+    this.current = START
+    this.pending = null
+  }
+}
+
+function normalizeBase (base: ?string): string {
+  if (!base) {
+    if (inBrowser) {
+      // respect <base> tag
+      const baseEl = document.querySelector('base')
+      base = (baseEl && baseEl.getAttribute('href')) || '/'
+      // strip full URL origin
+      base = base.replace(/^https?:\/\/[^\/]+/, '')
+    } else {
+      base = '/'
+    }
+  }
+  // make sure there's the starting slash
+  if (base.charAt(0) !== '/') {
+    base = '/' + base
+  }
+  // remove trailing slash
+  return base.replace(/\/$/, '')
+}
+
+function resolveQueue (
+  current: Array<RouteRecord>,
+  next: Array<RouteRecord>
+): {
+  updated: Array<RouteRecord>,
+  activated: Array<RouteRecord>,
+  deactivated: Array<RouteRecord>
+} {
+  let i
+  const max = Math.max(current.length, next.length)
+  for (i = 0; i < max; i++) {
+    if (current[i] !== next[i]) {
+      break
+    }
+  }
+  return {
+    updated: next.slice(0, i),
+    activated: next.slice(i),
+    deactivated: current.slice(i)
+  }
+}
+
+function extractGuards (
+  records: Array<RouteRecord>,
+  name: string,
+  bind: Function,
+  reverse?: boolean
+): Array<?Function> {
+  const guards = flatMapComponents(records, (def, instance, match, key) => {
+    const guard = extractGuard(def, name)
+    if (guard) {
+      return Array.isArray(guard)
+        ? guard.map(guard => bind(guard, instance, match, key))
+        : bind(guard, instance, match, key)
+    }
+  })
+  return flatten(reverse ? guards.reverse() : guards)
+}
+
+function extractGuard (
+  def: Object | Function,
+  key: string
+): NavigationGuard | Array<NavigationGuard> {
+  if (typeof def !== 'function') {
+    // extend now so that global mixins are applied.
+    def = _Vue.extend(def)
+  }
+  return def.options[key]
+}
+
+function extractLeaveGuards (deactivated: Array<RouteRecord>): Array<?Function> {
+  return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)
+}
+
+function extractUpdateHooks (updated: Array<RouteRecord>): Array<?Function> {
+  return extractGuards(updated, 'beforeRouteUpdate', bindGuard)
+}
+
+function bindGuard (guard: NavigationGuard, instance: ?_Vue): ?NavigationGuard {
+  if (instance) {
+    return function boundRouteGuard () {
+      return guard.apply(instance, arguments)
+    }
+  }
+}
+
+function extractEnterGuards (
+  activated: Array<RouteRecord>
+): Array<?Function> {
+  return extractGuards(
+    activated,
+    'beforeRouteEnter',
+    (guard, _, match, key) => {
+      return bindEnterGuard(guard, match, key)
+    }
+  )
+}
+
+function bindEnterGuard (
+  guard: NavigationGuard,
+  match: RouteRecord,
+  key: string
+): NavigationGuard {
+  return function routeEnterGuard (to, from, next) {
+    return guard(to, from, cb => {
+      if (typeof cb === 'function') {
+        if (!match.enteredCbs[key]) {
+          match.enteredCbs[key] = []
+        }
+        match.enteredCbs[key].push(cb)
+      }
+      next(cb)
+    })
+  }
+}

node_modules/vue-router/src/history/hash.js

@@ -0,0 +1,152 @@
+/* @flow */
+
+import type Router from '../index'
+import { History } from './base'
+import { cleanPath } from '../util/path'
+import { getLocation } from './html5'
+import { setupScroll, handleScroll } from '../util/scroll'
+import { pushState, replaceState, supportsPushState } from '../util/push-state'
+
+export class HashHistory extends History {
+  constructor (router: Router, base: ?string, fallback: boolean) {
+    super(router, base)
+    // check history fallback deeplinking
+    if (fallback && checkFallback(this.base)) {
+      return
+    }
+    ensureSlash()
+  }
+
+  // this is delayed until the app mounts
+  // to avoid the hashchange listener being fired too early
+  setupListeners () {
+    if (this.listeners.length > 0) {
+      return
+    }
+
+    const router = this.router
+    const expectScroll = router.options.scrollBehavior
+    const supportsScroll = supportsPushState && expectScroll
+
+    if (supportsScroll) {
+      this.listeners.push(setupScroll())
+    }
+
+    const handleRoutingEvent = () => {
+      const current = this.current
+      if (!ensureSlash()) {
+        return
+      }
+      this.transitionTo(getHash(), route => {
+        if (supportsScroll) {
+          handleScroll(this.router, route, current, true)
+        }
+        if (!supportsPushState) {
+          replaceHash(route.fullPath)
+        }
+      })
+    }
+    const eventType = supportsPushState ? 'popstate' : 'hashchange'
+    window.addEventListener(
+      eventType,
+      handleRoutingEvent
+    )
+    this.listeners.push(() => {
+      window.removeEventListener(eventType, handleRoutingEvent)
+    })
+  }
+
+  push (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    const { current: fromRoute } = this
+    this.transitionTo(
+      location,
+      route => {
+        pushHash(route.fullPath)
+        handleScroll(this.router, route, fromRoute, false)
+        onComplete && onComplete(route)
+      },
+      onAbort
+    )
+  }
+
+  replace (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    const { current: fromRoute } = this
+    this.transitionTo(
+      location,
+      route => {
+        replaceHash(route.fullPath)
+        handleScroll(this.router, route, fromRoute, false)
+        onComplete && onComplete(route)
+      },
+      onAbort
+    )
+  }
+
+  go (n: number) {
+    window.history.go(n)
+  }
+
+  ensureURL (push?: boolean) {
+    const current = this.current.fullPath
+    if (getHash() !== current) {
+      push ? pushHash(current) : replaceHash(current)
+    }
+  }
+
+  getCurrentLocation () {
+    return getHash()
+  }
+}
+
+function checkFallback (base) {
+  const location = getLocation(base)
+  if (!/^\/#/.test(location)) {
+    window.location.replace(cleanPath(base + '/#' + location))
+    return true
+  }
+}
+
+function ensureSlash (): boolean {
+  const path = getHash()
+  if (path.charAt(0) === '/') {
+    return true
+  }
+  replaceHash('/' + path)
+  return false
+}
+
+export function getHash (): string {
+  // We can't use window.location.hash here because it's not
+  // consistent across browsers - Firefox will pre-decode it!
+  let href = window.location.href
+  const index = href.indexOf('#')
+  // empty path
+  if (index < 0) return ''
+
+  href = href.slice(index + 1)
+
+  return href
+}
+
+function getUrl (path) {
+  const href = window.location.href
+  const i = href.indexOf('#')
+  const base = i >= 0 ? href.slice(0, i) : href
+  return `${base}#${path}`
+}
+
+function pushHash (path) {
+  if (supportsPushState) {
+    pushState(getUrl(path))
+  } else {
+    window.location.hash = path
+  }
+}
+
+function replaceHash (path) {
+  if (supportsPushState) {
+    replaceState(getUrl(path))
+  } else {
+    window.location.replace(getUrl(path))
+  }
+}

node_modules/vue-router/src/history/html5.js

@@ -0,0 +1,100 @@
+/* @flow */
+
+import type Router from '../index'
+import { History } from './base'
+import { cleanPath } from '../util/path'
+import { START } from '../util/route'
+import { setupScroll, handleScroll } from '../util/scroll'
+import { pushState, replaceState, supportsPushState } from '../util/push-state'
+
+export class HTML5History extends History {
+  _startLocation: string
+
+  constructor (router: Router, base: ?string) {
+    super(router, base)
+
+    this._startLocation = getLocation(this.base)
+  }
+
+  setupListeners () {
+    if (this.listeners.length > 0) {
+      return
+    }
+
+    const router = this.router
+    const expectScroll = router.options.scrollBehavior
+    const supportsScroll = supportsPushState && expectScroll
+
+    if (supportsScroll) {
+      this.listeners.push(setupScroll())
+    }
+
+    const handleRoutingEvent = () => {
+      const current = this.current
+
+      // Avoiding first `popstate` event dispatched in some browsers but first
+      // history route not updated since async guard at the same time.
+      const location = getLocation(this.base)
+      if (this.current === START && location === this._startLocation) {
+        return
+      }
+
+      this.transitionTo(location, route => {
+        if (supportsScroll) {
+          handleScroll(router, route, current, true)
+        }
+      })
+    }
+    window.addEventListener('popstate', handleRoutingEvent)
+    this.listeners.push(() => {
+      window.removeEventListener('popstate', handleRoutingEvent)
+    })
+  }
+
+  go (n: number) {
+    window.history.go(n)
+  }
+
+  push (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    const { current: fromRoute } = this
+    this.transitionTo(location, route => {
+      pushState(cleanPath(this.base + route.fullPath))
+      handleScroll(this.router, route, fromRoute, false)
+      onComplete && onComplete(route)
+    }, onAbort)
+  }
+
+  replace (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    const { current: fromRoute } = this
+    this.transitionTo(location, route => {
+      replaceState(cleanPath(this.base + route.fullPath))
+      handleScroll(this.router, route, fromRoute, false)
+      onComplete && onComplete(route)
+    }, onAbort)
+  }
+
+  ensureURL (push?: boolean) {
+    if (getLocation(this.base) !== this.current.fullPath) {
+      const current = cleanPath(this.base + this.current.fullPath)
+      push ? pushState(current) : replaceState(current)
+    }
+  }
+
+  getCurrentLocation (): string {
+    return getLocation(this.base)
+  }
+}
+
+export function getLocation (base: string): string {
+  let path = window.location.pathname
+  const pathLowerCase = path.toLowerCase()
+  const baseLowerCase = base.toLowerCase()
+  // base="/a" shouldn't turn path="/app" into "/a/pp"
+  // https://github.com/vuejs/vue-router/issues/3555
+  // so we ensure the trailing slash in the base
+  if (base && ((pathLowerCase === baseLowerCase) ||
+    (pathLowerCase.indexOf(cleanPath(baseLowerCase + '/')) === 0))) {
+    path = path.slice(base.length)
+  }
+  return (path || '/') + window.location.search + window.location.hash
+}

node_modules/vue-router/src/index.js

@@ -0,0 +1,3 @@
+import VueRouter from './entries/cjs'
+
+export default VueRouter

node_modules/vue-router/src/install.js

@@ -0,0 +1,52 @@
+import View from './components/view'
+import Link from './components/link'
+
+export let _Vue
+
+export function install (Vue) {
+  if (install.installed && _Vue === Vue) return
+  install.installed = true
+
+  _Vue = Vue
+
+  const isDef = v => v !== undefined
+
+  const registerInstance = (vm, callVal) => {
+    let i = vm.$options._parentVnode
+    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {
+      i(vm, callVal)
+    }
+  }
+
+  Vue.mixin({
+    beforeCreate () {
+      if (isDef(this.$options.router)) {
+        this._routerRoot = this
+        this._router = this.$options.router
+        this._router.init(this)
+        Vue.util.defineReactive(this, '_route', this._router.history.current)
+      } else {
+        this._routerRoot = (this.$parent && this.$parent._routerRoot) || this
+      }
+      registerInstance(this, this)
+    },
+    destroyed () {
+      registerInstance(this)
+    }
+  })
+
+  Object.defineProperty(Vue.prototype, '$router', {
+    get () { return this._routerRoot._router }
+  })
+
+  Object.defineProperty(Vue.prototype, '$route', {
+    get () { return this._routerRoot._route }
+  })
+
+  Vue.component('RouterView', View)
+  Vue.component('RouterLink', Link)
+
+  const strats = Vue.config.optionMergeStrategies
+  // use the same hook merging strategy for route hooks
+  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created
+}

node_modules/vue-router/src/router.js

@@ -0,0 +1,294 @@
+/* @flow */
+
+import { install } from './install'
+import { START } from './util/route'
+import { assert, warn } from './util/warn'
+import { inBrowser } from './util/dom'
+import { cleanPath } from './util/path'
+import { createMatcher } from './create-matcher'
+import { normalizeLocation } from './util/location'
+import { supportsPushState } from './util/push-state'
+import { handleScroll } from './util/scroll'
+import { isNavigationFailure, NavigationFailureType } from './util/errors'
+
+import { HashHistory } from './history/hash'
+import { HTML5History } from './history/html5'
+import { AbstractHistory } from './history/abstract'
+
+import type { Matcher } from './create-matcher'
+
+export default class VueRouter {
+  static install: () => void
+  static version: string
+  static isNavigationFailure: Function
+  static NavigationFailureType: any
+  static START_LOCATION: Route
+
+  app: any
+  apps: Array<any>
+  ready: boolean
+  readyCbs: Array<Function>
+  options: RouterOptions
+  mode: string
+  history: HashHistory | HTML5History | AbstractHistory
+  matcher: Matcher
+  fallback: boolean
+  beforeHooks: Array<?NavigationGuard>
+  resolveHooks: Array<?NavigationGuard>
+  afterHooks: Array<?AfterNavigationHook>
+
+  constructor (options: RouterOptions = {}) {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(this instanceof VueRouter, `Router must be called with the new operator.`)
+    }
+    this.app = null
+    this.apps = []
+    this.options = options
+    this.beforeHooks = []
+    this.resolveHooks = []
+    this.afterHooks = []
+    this.matcher = createMatcher(options.routes || [], this)
+
+    let mode = options.mode || 'hash'
+    this.fallback =
+      mode === 'history' && !supportsPushState && options.fallback !== false
+    if (this.fallback) {
+      mode = 'hash'
+    }
+    if (!inBrowser) {
+      mode = 'abstract'
+    }
+    this.mode = mode
+
+    switch (mode) {
+      case 'history':
+        this.history = new HTML5History(this, options.base)
+        break
+      case 'hash':
+        this.history = new HashHistory(this, options.base, this.fallback)
+        break
+      case 'abstract':
+        this.history = new AbstractHistory(this, options.base)
+        break
+      default:
+        if (process.env.NODE_ENV !== 'production') {
+          assert(false, `invalid mode: ${mode}`)
+        }
+    }
+  }
+
+  match (raw: RawLocation, current?: Route, redirectedFrom?: Location): Route {
+    return this.matcher.match(raw, current, redirectedFrom)
+  }
+
+  get currentRoute (): ?Route {
+    return this.history && this.history.current
+  }
+
+  init (app: any /* Vue component instance */) {
+    process.env.NODE_ENV !== 'production' &&
+      assert(
+        install.installed,
+        `not installed. Make sure to call \`Vue.use(VueRouter)\` ` +
+          `before creating root instance.`
+      )
+
+    this.apps.push(app)
+
+    // set up app destroyed handler
+    // https://github.com/vuejs/vue-router/issues/2639
+    app.$once('hook:destroyed', () => {
+      // clean out app from this.apps array once destroyed
+      const index = this.apps.indexOf(app)
+      if (index > -1) this.apps.splice(index, 1)
+      // ensure we still have a main app or null if no apps
+      // we do not release the router so it can be reused
+      if (this.app === app) this.app = this.apps[0] || null
+
+      if (!this.app) this.history.teardown()
+    })
+
+    // main app previously initialized
+    // return as we don't need to set up new history listener
+    if (this.app) {
+      return
+    }
+
+    this.app = app
+
+    const history = this.history
+
+    if (history instanceof HTML5History || history instanceof HashHistory) {
+      const handleInitialScroll = routeOrError => {
+        const from = history.current
+        const expectScroll = this.options.scrollBehavior
+        const supportsScroll = supportsPushState && expectScroll
+
+        if (supportsScroll && 'fullPath' in routeOrError) {
+          handleScroll(this, routeOrError, from, false)
+        }
+      }
+      const setupListeners = routeOrError => {
+        history.setupListeners()
+        handleInitialScroll(routeOrError)
+      }
+      history.transitionTo(
+        history.getCurrentLocation(),
+        setupListeners,
+        setupListeners
+      )
+    }
+
+    history.listen(route => {
+      this.apps.forEach(app => {
+        app._route = route
+      })
+    })
+  }
+
+  beforeEach (fn: Function): Function {
+    return registerHook(this.beforeHooks, fn)
+  }
+
+  beforeResolve (fn: Function): Function {
+    return registerHook(this.resolveHooks, fn)
+  }
+
+  afterEach (fn: Function): Function {
+    return registerHook(this.afterHooks, fn)
+  }
+
+  onReady (cb: Function, errorCb?: Function) {
+    this.history.onReady(cb, errorCb)
+  }
+
+  onError (errorCb: Function) {
+    this.history.onError(errorCb)
+  }
+
+  push (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    // $flow-disable-line
+    if (!onComplete && !onAbort && typeof Promise !== 'undefined') {
+      return new Promise((resolve, reject) => {
+        this.history.push(location, resolve, reject)
+      })
+    } else {
+      this.history.push(location, onComplete, onAbort)
+    }
+  }
+
+  replace (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    // $flow-disable-line
+    if (!onComplete && !onAbort && typeof Promise !== 'undefined') {
+      return new Promise((resolve, reject) => {
+        this.history.replace(location, resolve, reject)
+      })
+    } else {
+      this.history.replace(location, onComplete, onAbort)
+    }
+  }
+
+  go (n: number) {
+    this.history.go(n)
+  }
+
+  back () {
+    this.go(-1)
+  }
+
+  forward () {
+    this.go(1)
+  }
+
+  getMatchedComponents (to?: RawLocation | Route): Array<any> {
+    const route: any = to
+      ? to.matched
+        ? to
+        : this.resolve(to).route
+      : this.currentRoute
+    if (!route) {
+      return []
+    }
+    return [].concat.apply(
+      [],
+      route.matched.map(m => {
+        return Object.keys(m.components).map(key => {
+          return m.components[key]
+        })
+      })
+    )
+  }
+
+  resolve (
+    to: RawLocation,
+    current?: Route,
+    append?: boolean
+  ): {
+    location: Location,
+    route: Route,
+    href: string,
+    // for backwards compat
+    normalizedTo: Location,
+    resolved: Route
+  } {
+    current = current || this.history.current
+    const location = normalizeLocation(to, current, append, this)
+    const route = this.match(location, current)
+    const fullPath = route.redirectedFrom || route.fullPath
+    const base = this.history.base
+    const href = createHref(base, fullPath, this.mode)
+    return {
+      location,
+      route,
+      href,
+      // for backwards compat
+      normalizedTo: location,
+      resolved: route
+    }
+  }
+
+  getRoutes () {
+    return this.matcher.getRoutes()
+  }
+
+  addRoute (parentOrRoute: string | RouteConfig, route?: RouteConfig) {
+    this.matcher.addRoute(parentOrRoute, route)
+    if (this.history.current !== START) {
+      this.history.transitionTo(this.history.getCurrentLocation())
+    }
+  }
+
+  addRoutes (routes: Array<RouteConfig>) {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(false, 'router.addRoutes() is deprecated and has been removed in Vue Router 4. Use router.addRoute() instead.')
+    }
+    this.matcher.addRoutes(routes)
+    if (this.history.current !== START) {
+      this.history.transitionTo(this.history.getCurrentLocation())
+    }
+  }
+}
+
+function registerHook (list: Array<any>, fn: Function): Function {
+  list.push(fn)
+  return () => {
+    const i = list.indexOf(fn)
+    if (i > -1) list.splice(i, 1)
+  }
+}
+
+function createHref (base: string, fullPath: string, mode) {
+  var path = mode === 'hash' ? '#' + fullPath : fullPath
+  return base ? cleanPath(base + '/' + path) : path
+}
+
+// We cannot remove this as it would be a breaking change
+VueRouter.install = install
+VueRouter.version = '__VERSION__'
+VueRouter.isNavigationFailure = isNavigationFailure
+VueRouter.NavigationFailureType = NavigationFailureType
+VueRouter.START_LOCATION = START
+
+if (inBrowser && window.Vue) {
+  window.Vue.use(VueRouter)
+}

node_modules/vue-router/src/util/async.js

@@ -0,0 +1,18 @@
+/* @flow */
+
+export function runQueue (queue: Array<?NavigationGuard>, fn: Function, cb: Function) {
+  const step = index => {
+    if (index >= queue.length) {
+      cb()
+    } else {
+      if (queue[index]) {
+        fn(queue[index], () => {
+          step(index + 1)
+        })
+      } else {
+        step(index + 1)
+      }
+    }
+  }
+  step(0)
+}

node_modules/vue-router/src/util/dom.js

@@ -0,0 +1,3 @@
+/* @flow */
+
+export const inBrowser = typeof window !== 'undefined'

node_modules/vue-router/src/util/errors.js

@@ -0,0 +1,86 @@
+// When changing thing, also edit router.d.ts
+export const NavigationFailureType = {
+  redirected: 2,
+  aborted: 4,
+  cancelled: 8,
+  duplicated: 16
+}
+
+export function createNavigationRedirectedError (from, to) {
+  return createRouterError(
+    from,
+    to,
+    NavigationFailureType.redirected,
+    `Redirected when going from "${from.fullPath}" to "${stringifyRoute(
+      to
+    )}" via a navigation guard.`
+  )
+}
+
+export function createNavigationDuplicatedError (from, to) {
+  const error = createRouterError(
+    from,
+    to,
+    NavigationFailureType.duplicated,
+    `Avoided redundant navigation to current location: "${from.fullPath}".`
+  )
+  // backwards compatible with the first introduction of Errors
+  error.name = 'NavigationDuplicated'
+  return error
+}
+
+export function createNavigationCancelledError (from, to) {
+  return createRouterError(
+    from,
+    to,
+    NavigationFailureType.cancelled,
+    `Navigation cancelled from "${from.fullPath}" to "${
+      to.fullPath
+    }" with a new navigation.`
+  )
+}
+
+export function createNavigationAbortedError (from, to) {
+  return createRouterError(
+    from,
+    to,
+    NavigationFailureType.aborted,
+    `Navigation aborted from "${from.fullPath}" to "${
+      to.fullPath
+    }" via a navigation guard.`
+  )
+}
+
+function createRouterError (from, to, type, message) {
+  const error = new Error(message)
+  error._isRouter = true
+  error.from = from
+  error.to = to
+  error.type = type
+
+  return error
+}
+
+const propertiesToLog = ['params', 'query', 'hash']
+
+function stringifyRoute (to) {
+  if (typeof to === 'string') return to
+  if ('path' in to) return to.path
+  const location = {}
+  propertiesToLog.forEach(key => {
+    if (key in to) location[key] = to[key]
+  })
+  return JSON.stringify(location, null, 2)
+}
+
+export function isError (err) {
+  return Object.prototype.toString.call(err).indexOf('Error') > -1
+}
+
+export function isNavigationFailure (err, errorType) {
+  return (
+    isError(err) &&
+    err._isRouter &&
+    (errorType == null || err.type === errorType)
+  )
+}

node_modules/vue-router/src/util/location.js

@@ -0,0 +1,69 @@
+/* @flow */
+
+import type VueRouter from '../index'
+import { parsePath, resolvePath } from './path'
+import { resolveQuery } from './query'
+import { fillParams } from './params'
+import { warn } from './warn'
+import { extend } from './misc'
+
+export function normalizeLocation (
+  raw: RawLocation,
+  current: ?Route,
+  append: ?boolean,
+  router: ?VueRouter
+): Location {
+  let next: Location = typeof raw === 'string' ? { path: raw } : raw
+  // named target
+  if (next._normalized) {
+    return next
+  } else if (next.name) {
+    next = extend({}, raw)
+    const params = next.params
+    if (params && typeof params === 'object') {
+      next.params = extend({}, params)
+    }
+    return next
+  }
+
+  // relative params
+  if (!next.path && next.params && current) {
+    next = extend({}, next)
+    next._normalized = true
+    const params: any = extend(extend({}, current.params), next.params)
+    if (current.name) {
+      next.name = current.name
+      next.params = params
+    } else if (current.matched.length) {
+      const rawPath = current.matched[current.matched.length - 1].path
+      next.path = fillParams(rawPath, params, `path ${current.path}`)
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn(false, `relative params navigation requires a current route.`)
+    }
+    return next
+  }
+
+  const parsedPath = parsePath(next.path || '')
+  const basePath = (current && current.path) || '/'
+  const path = parsedPath.path
+    ? resolvePath(parsedPath.path, basePath, append || next.append)
+    : basePath
+
+  const query = resolveQuery(
+    parsedPath.query,
+    next.query,
+    router && router.options.parseQuery
+  )
+
+  let hash = next.hash || parsedPath.hash
+  if (hash && hash.charAt(0) !== '#') {
+    hash = `#${hash}`
+  }
+
+  return {
+    _normalized: true,
+    path,
+    query,
+    hash
+  }
+}

node_modules/vue-router/src/util/misc.js

@@ -0,0 +1,6 @@
+export function extend (a, b) {
+  for (const key in b) {
+    a[key] = b[key]
+  }
+  return a
+}

node_modules/vue-router/src/util/params.js

@@ -0,0 +1,37 @@
+/* @flow */
+
+import { warn } from './warn'
+import Regexp from 'path-to-regexp'
+
+// $flow-disable-line
+const regexpCompileCache: {
+  [key: string]: Function
+} = Object.create(null)
+
+export function fillParams (
+  path: string,
+  params: ?Object,
+  routeMsg: string
+): string {
+  params = params || {}
+  try {
+    const filler =
+      regexpCompileCache[path] ||
+      (regexpCompileCache[path] = Regexp.compile(path))
+
+    // Fix #2505 resolving asterisk routes { name: 'not-found', params: { pathMatch: '/not-found' }}
+    // and fix #3106 so that you can work with location descriptor object having params.pathMatch equal to empty string
+    if (typeof params.pathMatch === 'string') params[0] = params.pathMatch
+
+    return filler(params, { pretty: true })
+  } catch (e) {
+    if (process.env.NODE_ENV !== 'production') {
+      // Fix #3072 no warn if `pathMatch` is string
+      warn(typeof params.pathMatch === 'string', `missing param for ${routeMsg}: ${e.message}`)
+    }
+    return ''
+  } finally {
+    // delete the 0 if it was added
+    delete params[0]
+  }
+}

node_modules/vue-router/src/util/path.js

@@ -0,0 +1,74 @@
+/* @flow */
+
+export function resolvePath (
+  relative: string,
+  base: string,
+  append?: boolean
+): string {
+  const firstChar = relative.charAt(0)
+  if (firstChar === '/') {
+    return relative
+  }
+
+  if (firstChar === '?' || firstChar === '#') {
+    return base + relative
+  }
+
+  const stack = base.split('/')
+
+  // remove trailing segment if:
+  // - not appending
+  // - appending to trailing slash (last segment is empty)
+  if (!append || !stack[stack.length - 1]) {
+    stack.pop()
+  }
+
+  // resolve relative path
+  const segments = relative.replace(/^\//, '').split('/')
+  for (let i = 0; i < segments.length; i++) {
+    const segment = segments[i]
+    if (segment === '..') {
+      stack.pop()
+    } else if (segment !== '.') {
+      stack.push(segment)
+    }
+  }
+
+  // ensure leading slash
+  if (stack[0] !== '') {
+    stack.unshift('')
+  }
+
+  return stack.join('/')
+}
+
+export function parsePath (path: string): {
+  path: string;
+  query: string;
+  hash: string;
+} {
+  let hash = ''
+  let query = ''
+
+  const hashIndex = path.indexOf('#')
+  if (hashIndex >= 0) {
+    hash = path.slice(hashIndex)
+    path = path.slice(0, hashIndex)
+  }
+
+  const queryIndex = path.indexOf('?')
+  if (queryIndex >= 0) {
+    query = path.slice(queryIndex + 1)
+    path = path.slice(0, queryIndex)
+  }
+
+  return {
+    path,
+    query,
+    hash
+  }
+}
+
+export function cleanPath (path: string): string {
+  return path.replace(/\/(?:\s*\/)+/g, '/')
+}

node_modules/vue-router/src/util/push-state.js

@@ -0,0 +1,46 @@
+/* @flow */
+
+import { inBrowser } from './dom'
+import { saveScrollPosition } from './scroll'
+import { genStateKey, setStateKey, getStateKey } from './state-key'
+import { extend } from './misc'
+
+export const supportsPushState =
+  inBrowser &&
+  (function () {
+    const ua = window.navigator.userAgent
+
+    if (
+      (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&
+      ua.indexOf('Mobile Safari') !== -1 &&
+      ua.indexOf('Chrome') === -1 &&
+      ua.indexOf('Windows Phone') === -1
+    ) {
+      return false
+    }
+
+    return window.history && typeof window.history.pushState === 'function'
+  })()
+
+export function pushState (url?: string, replace?: boolean) {
+  saveScrollPosition()
+  // try...catch the pushState call to get around Safari
+  // DOM Exception 18 where it limits to 100 pushState calls
+  const history = window.history
+  try {
+    if (replace) {
+      // preserve existing history state as it could be overriden by the user
+      const stateCopy = extend({}, history.state)
+      stateCopy.key = getStateKey()
+      history.replaceState(stateCopy, '', url)
+    } else {
+      history.pushState({ key: setStateKey(genStateKey()) }, '', url)
+    }
+  } catch (e) {
+    window.location[replace ? 'replace' : 'assign'](url)
+  }
+}
+
+export function replaceState (url?: string) {
+  pushState(url, true)
+}

node_modules/vue-router/src/util/query.js

@@ -0,0 +1,113 @@
+/* @flow */
+
+import { warn } from './warn'
+
+const encodeReserveRE = /[!'()*]/g
+const encodeReserveReplacer = c => '%' + c.charCodeAt(0).toString(16)
+const commaRE = /%2C/g
+
+// fixed encodeURIComponent which is more conformant to RFC3986:
+// - escapes [!'()*]
+// - preserve commas
+const encode = str =>
+  encodeURIComponent(str)
+    .replace(encodeReserveRE, encodeReserveReplacer)
+    .replace(commaRE, ',')
+
+export function decode (str: string) {
+  try {
+    return decodeURIComponent(str)
+  } catch (err) {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(false, `Error decoding "${str}". Leaving it intact.`)
+    }
+  }
+  return str
+}
+
+export function resolveQuery (
+  query: ?string,
+  extraQuery: Dictionary<string> = {},
+  _parseQuery: ?Function
+): Dictionary<string> {
+  const parse = _parseQuery || parseQuery
+  let parsedQuery
+  try {
+    parsedQuery = parse(query || '')
+  } catch (e) {
+    process.env.NODE_ENV !== 'production' && warn(false, e.message)
+    parsedQuery = {}
+  }
+  for (const key in extraQuery) {
+    const value = extraQuery[key]
+    parsedQuery[key] = Array.isArray(value)
+      ? value.map(castQueryParamValue)
+      : castQueryParamValue(value)
+  }
+  return parsedQuery
+}
+
+const castQueryParamValue = value => (value == null || typeof value === 'object' ? value : String(value))
+
+function parseQuery (query: string): Dictionary<string> {
+  const res = {}
+
+  query = query.trim().replace(/^(\?|#|&)/, '')
+
+  if (!query) {
+    return res
+  }
+
+  query.split('&').forEach(param => {
+    const parts = param.replace(/\+/g, ' ').split('=')
+    const key = decode(parts.shift())
+    const val = parts.length > 0 ? decode(parts.join('=')) : null
+
+    if (res[key] === undefined) {
+      res[key] = val
+    } else if (Array.isArray(res[key])) {
+      res[key].push(val)
+    } else {
+      res[key] = [res[key], val]
+    }
+  })
+
+  return res
+}
+
+export function stringifyQuery (obj: Dictionary<string>): string {
+  const res = obj
+    ? Object.keys(obj)
+      .map(key => {
+        const val = obj[key]
+
+        if (val === undefined) {
+          return ''
+        }
+
+        if (val === null) {
+          return encode(key)
+        }
+
+        if (Array.isArray(val)) {
+          const result = []
+          val.forEach(val2 => {
+            if (val2 === undefined) {
+              return
+            }
+            if (val2 === null) {
+              result.push(encode(key))
+            } else {
+              result.push(encode(key) + '=' + encode(val2))
+            }
+          })
+          return result.join('&')
+        }
+
+        return encode(key) + '=' + encode(val)
+      })
+      .filter(x => x.length > 0)
+      .join('&')
+    : null
+  return res ? `?${res}` : ''
+}

node_modules/vue-router/src/util/resolve-components.js

@@ -0,0 +1,109 @@
+/* @flow */
+
+import { _Vue } from '../install'
+import { warn } from './warn'
+import { isError } from '../util/errors'
+
+export function resolveAsyncComponents (matched: Array<RouteRecord>): Function {
+  return (to, from, next) => {
+    let hasAsync = false
+    let pending = 0
+    let error = null
+
+    flatMapComponents(matched, (def, _, match, key) => {
+      // if it's a function and doesn't have cid attached,
+      // assume it's an async component resolve function.
+      // we are not using Vue's default async resolving mechanism because
+      // we want to halt the navigation until the incoming component has been
+      // resolved.
+      if (typeof def === 'function' && def.cid === undefined) {
+        hasAsync = true
+        pending++
+
+        const resolve = once(resolvedDef => {
+          if (isESModule(resolvedDef)) {
+            resolvedDef = resolvedDef.default
+          }
+          // save resolved on async factory in case it's used elsewhere
+          def.resolved = typeof resolvedDef === 'function'
+            ? resolvedDef
+            : _Vue.extend(resolvedDef)
+          match.components[key] = resolvedDef
+          pending--
+          if (pending <= 0) {
+            next()
+          }
+        })
+
+        const reject = once(reason => {
+          const msg = `Failed to resolve async component ${key}: ${reason}`
+          process.env.NODE_ENV !== 'production' && warn(false, msg)
+          if (!error) {
+            error = isError(reason)
+              ? reason
+              : new Error(msg)
+            next(error)
+          }
+        })
+
+        let res
+        try {
+          res = def(resolve, reject)
+        } catch (e) {
+          reject(e)
+        }
+        if (res) {
+          if (typeof res.then === 'function') {
+            res.then(resolve, reject)
+          } else {
+            // new syntax in Vue 2.3
+            const comp = res.component
+            if (comp && typeof comp.then === 'function') {
+              comp.then(resolve, reject)
+            }
+          }
+        }
+      }
+    })
+
+    if (!hasAsync) next()
+  }
+}
+
+export function flatMapComponents (
+  matched: Array<RouteRecord>,
+  fn: Function
+): Array<?Function> {
+  return flatten(matched.map(m => {
+    return Object.keys(m.components).map(key => fn(
+      m.components[key],
+      m.instances[key],
+      m, key
+    ))
+  }))
+}
+
+export function flatten (arr: Array<any>): Array<any> {
+  return Array.prototype.concat.apply([], arr)
+}
+
+const hasSymbol =
+  typeof Symbol === 'function' &&
+  typeof Symbol.toStringTag === 'symbol'
+
+function isESModule (obj) {
+  return obj.__esModule || (hasSymbol && obj[Symbol.toStringTag] === 'Module')
+}
+
+// in Webpack 2, require.ensure now also returns a Promise
+// so the resolve/reject functions may get called an extra time
+// if the user uses an arrow function shorthand that happens to
+// return that Promise.
+function once (fn) {
+  let called = false
+  return function (...args) {
+    if (called) return
+    called = true
+    return fn.apply(this, args)
+  }
+}

node_modules/vue-router/src/util/route.js

@@ -0,0 +1,151 @@
+/* @flow */
+
+import type VueRouter from '../index'
+import { stringifyQuery } from './query'
+
+const trailingSlashRE = /\/?$/
+
+export function createRoute (
+  record: ?RouteRecord,
+  location: Location,
+  redirectedFrom?: ?Location,
+  router?: VueRouter
+): Route {
+  const stringifyQuery = router && router.options.stringifyQuery
+
+  let query: any = location.query || {}
+  try {
+    query = clone(query)
+  } catch (e) {}
+
+  const route: Route = {
+    name: location.name || (record && record.name),
+    meta: (record && record.meta) || {},
+    path: location.path || '/',
+    hash: location.hash || '',
+    query,
+    params: location.params || {},
+    fullPath: getFullPath(location, stringifyQuery),
+    matched: record ? formatMatch(record) : []
+  }
+  if (redirectedFrom) {
+    route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery)
+  }
+  return Object.freeze(route)
+}
+
+function clone (value) {
+  if (Array.isArray(value)) {
+    return value.map(clone)
+  } else if (value && typeof value === 'object') {
+    const res = {}
+    for (const key in value) {
+      res[key] = clone(value[key])
+    }
+    return res
+  } else {
+    return value
+  }
+}
+
+// the starting route that represents the initial state
+export const START = createRoute(null, {
+  path: '/'
+})
+
+function formatMatch (record: ?RouteRecord): Array<RouteRecord> {
+  const res = []
+  while (record) {
+    res.unshift(record)
+    record = record.parent
+  }
+  return res
+}
+
+function getFullPath (
+  { path, query = {}, hash = '' },
+  _stringifyQuery
+): string {
+  const stringify = _stringifyQuery || stringifyQuery
+  return (path || '/') + stringify(query) + hash
+}
+
+export function isSameRoute (a: Route, b: ?Route, onlyPath: ?boolean): boolean {
+  if (b === START) {
+    return a === b
+  } else if (!b) {
+    return false
+  } else if (a.path && b.path) {
+    return a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') && (onlyPath ||
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query))
+  } else if (a.name && b.name) {
+    return (
+      a.name === b.name &&
+      (onlyPath || (
+        a.hash === b.hash &&
+      isObjectEqual(a.query, b.query) &&
+      isObjectEqual(a.params, b.params))
+      )
+    )
+  } else {
+    return false
+  }
+}
+
+function isObjectEqual (a = {}, b = {}): boolean {
+  // handle null value #1566
+  if (!a || !b) return a === b
+  const aKeys = Object.keys(a).sort()
+  const bKeys = Object.keys(b).sort()
+  if (aKeys.length !== bKeys.length) {
+    return false
+  }
+  return aKeys.every((key, i) => {
+    const aVal = a[key]
+    const bKey = bKeys[i]
+    if (bKey !== key) return false
+    const bVal = b[key]
+    // query values can be null and undefined
+    if (aVal == null || bVal == null) return aVal === bVal
+    // check nested equality
+    if (typeof aVal === 'object' && typeof bVal === 'object') {
+      return isObjectEqual(aVal, bVal)
+    }
+    return String(aVal) === String(bVal)
+  })
+}
+
+export function isIncludedRoute (current: Route, target: Route): boolean {
+  return (
+    current.path.replace(trailingSlashRE, '/').indexOf(
+      target.path.replace(trailingSlashRE, '/')
+    ) === 0 &&
+    (!target.hash || current.hash === target.hash) &&
+    queryIncludes(current.query, target.query)
+  )
+}
+
+function queryIncludes (current: Dictionary<string>, target: Dictionary<string>): boolean {
+  for (const key in target) {
+    if (!(key in current)) {
+      return false
+    }
+  }
+  return true
+}
+
+export function handleRouteEntered (route: Route) {
+  for (let i = 0; i < route.matched.length; i++) {
+    const record = route.matched[i]
+    for (const name in record.instances) {
+      const instance = record.instances[name]
+      const cbs = record.enteredCbs[name]
+      if (!instance || !cbs) continue
+      delete record.enteredCbs[name]
+      for (let i = 0; i < cbs.length; i++) {
+        if (!instance._isBeingDestroyed) cbs[i](instance)
+      }
+    }
+  }
+}

node_modules/vue-router/src/util/scroll.js

@@ -0,0 +1,175 @@
+/* @flow */
+
+import type Router from '../index'
+import { assert } from './warn'
+import { getStateKey, setStateKey } from './state-key'
+import { extend } from './misc'
+
+const positionStore = Object.create(null)
+
+export function setupScroll () {
+  // Prevent browser scroll behavior on History popstate
+  if ('scrollRestoration' in window.history) {
+    window.history.scrollRestoration = 'manual'
+  }
+  // Fix for #1585 for Firefox
+  // Fix for #2195 Add optional third attribute to workaround a bug in safari https://bugs.webkit.org/show_bug.cgi?id=182678
+  // Fix for #2774 Support for apps loaded from Windows file shares not mapped to network drives: replaced location.origin with
+  // window.location.protocol + '//' + window.location.host
+  // location.host contains the port and location.hostname doesn't
+  const protocolAndPath = window.location.protocol + '//' + window.location.host
+  const absolutePath = window.location.href.replace(protocolAndPath, '')
+  // preserve existing history state as it could be overriden by the user
+  const stateCopy = extend({}, window.history.state)
+  stateCopy.key = getStateKey()
+  window.history.replaceState(stateCopy, '', absolutePath)
+  window.addEventListener('popstate', handlePopState)
+  return () => {
+    window.removeEventListener('popstate', handlePopState)
+  }
+}
+
+export function handleScroll (
+  router: Router,
+  to: Route,
+  from: Route,
+  isPop: boolean
+) {
+  if (!router.app) {
+    return
+  }
+
+  const behavior = router.options.scrollBehavior
+  if (!behavior) {
+    return
+  }
+
+  if (process.env.NODE_ENV !== 'production') {
+    assert(typeof behavior === 'function', `scrollBehavior must be a function`)
+  }
+
+  // wait until re-render finishes before scrolling
+  router.app.$nextTick(() => {
+    const position = getScrollPosition()
+    const shouldScroll = behavior.call(
+      router,
+      to,
+      from,
+      isPop ? position : null
+    )
+
+    if (!shouldScroll) {
+      return
+    }
+
+    if (typeof shouldScroll.then === 'function') {
+      shouldScroll
+        .then(shouldScroll => {
+          scrollToPosition((shouldScroll: any), position)
+        })
+        .catch(err => {
+          if (process.env.NODE_ENV !== 'production') {
+            assert(false, err.toString())
+          }
+        })
+    } else {
+      scrollToPosition(shouldScroll, position)
+    }
+  })
+}
+
+export function saveScrollPosition () {
+  const key = getStateKey()
+  if (key) {
+    positionStore[key] = {
+      x: window.pageXOffset,
+      y: window.pageYOffset
+    }
+  }
+}
+
+function handlePopState (e) {
+  saveScrollPosition()
+  if (e.state && e.state.key) {
+    setStateKey(e.state.key)
+  }
+}
+
+function getScrollPosition (): ?Object {
+  const key = getStateKey()
+  if (key) {
+    return positionStore[key]
+  }
+}
+
+function getElementPosition (el: Element, offset: Object): Object {
+  const docEl: any = document.documentElement
+  const docRect = docEl.getBoundingClientRect()
+  const elRect = el.getBoundingClientRect()
+  return {
+    x: elRect.left - docRect.left - offset.x,
+    y: elRect.top - docRect.top - offset.y
+  }
+}
+
+function isValidPosition (obj: Object): boolean {
+  return isNumber(obj.x) || isNumber(obj.y)
+}
+
+function normalizePosition (obj: Object): Object {
+  return {
+    x: isNumber(obj.x) ? obj.x : window.pageXOffset,
+    y: isNumber(obj.y) ? obj.y : window.pageYOffset
+  }
+}
+
+function normalizeOffset (obj: Object): Object {
+  return {
+    x: isNumber(obj.x) ? obj.x : 0,
+    y: isNumber(obj.y) ? obj.y : 0
+  }
+}
+
+function isNumber (v: any): boolean {
+  return typeof v === 'number'
+}
+
+const hashStartsWithNumberRE = /^#\d/
+
+function scrollToPosition (shouldScroll, position) {
+  const isObject = typeof shouldScroll === 'object'
+  if (isObject && typeof shouldScroll.selector === 'string') {
+    // getElementById would still fail if the selector contains a more complicated query like #main[data-attr]
+    // but at the same time, it doesn't make much sense to select an element with an id and an extra selector
+    const el = hashStartsWithNumberRE.test(shouldScroll.selector) // $flow-disable-line
+      ? document.getElementById(shouldScroll.selector.slice(1)) // $flow-disable-line
+      : document.querySelector(shouldScroll.selector)
+
+    if (el) {
+      let offset =
+        shouldScroll.offset && typeof shouldScroll.offset === 'object'
+          ? shouldScroll.offset
+          : {}
+      offset = normalizeOffset(offset)
+      position = getElementPosition(el, offset)
+    } else if (isValidPosition(shouldScroll)) {
+      position = normalizePosition(shouldScroll)
+    }
+  } else if (isObject && isValidPosition(shouldScroll)) {
+    position = normalizePosition(shouldScroll)
+  }
+
+  if (position) {
+    // $flow-disable-line
+    if ('scrollBehavior' in document.documentElement.style) {
+      window.scrollTo({
+        left: position.x,
+        top: position.y,
+        // $flow-disable-line
+        behavior: shouldScroll.behavior
+      })
+    } else {
+      window.scrollTo(position.x, position.y)
+    }
+  }
+}

node_modules/vue-router/src/util/state-key.js

@@ -0,0 +1,22 @@
+/* @flow */
+import { inBrowser } from './dom'
+
+// use User Timing api (if present) for more accurate key precision
+const Time =
+  inBrowser && window.performance && window.performance.now
+    ? window.performance
+    : Date
+
+export function genStateKey (): string {
+  return Time.now().toFixed(3)
+}
+
+let _key: string = genStateKey()
+
+export function getStateKey () {
+  return _key
+}
+
+export function setStateKey (key: string) {
+  return (_key = key)
+}

node_modules/vue-router/src/util/warn.js

@@ -0,0 +1,14 @@
+/* @flow */
+
+export function assert (condition: any, message: string) {
+  if (!condition) {
+    throw new Error(`[vue-router] ${message}`)
+  }
+}
+
+export function warn (condition: any, message: string) {
+  if (!condition) {
+    typeof console !== 'undefined' && console.warn(`[vue-router] ${message}`)
+  }
+}
+