From: Ben Beltran <redacted>
Date: Wed, 30 Aug 2017 05:12:14 +0000 (-0500)
Subject: Update docs / remove bundle
X-Git-Url: https://git.r.bdr.sh/rbdr/sorting-hat-renderer/commitdiff_plain/11400882a21f3152c586f7f6688664577a190949?ds=sidebyside;hp=--cc

Update docs / remove bundle
---

11400882a21f3152c586f7f6688664577a190949
diff --git a/.gitignore b/.gitignore
index 00cbbdf..5a045f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -57,3 +57,5 @@ typings/
 # dotenv environment variables file
 .env
 
+# the built files
+assets/bundle.js
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 050f881..39b12e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,13 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## 1.0.0
 ### Added
-- JSDoc gerneration
 - Eslint config
-- Websocket server
-- Mindwave integration
-- Support for tmnt strategy (default)
+- Status component
+- Wave renderer
 - This CHANGELOG
 - A Readme
 
diff --git a/README.md b/README.md
index c837b6d..b28114c 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,10 @@
 
 A renderer for the sorting hat, sorts you to a variety of sets based on the
 assignment of mind waves.
+
+## Building
+
+`npm run build`
+
+You can then serve the project statically. As of this version it expects
+a websocket server in port 1987
diff --git a/assets/bundle.js b/assets/bundle.js
deleted file mode 100644
index 4141d10..0000000
--- a/assets/bundle.js
+++ /dev/null
@@ -1,9717 +0,0 @@
-(function webpackUniversalModuleDefinition(root, factory) {
-	if(typeof exports === 'object' && typeof module === 'object')
-		module.exports = factory();
-	else if(typeof define === 'function' && define.amd)
-		define([], factory);
-	else if(typeof exports === 'object')
-		exports["SortingHat"] = factory();
-	else
-		root["SortingHat"] = factory();
-})(this, function() {
-return /******/ (function(modules) { // webpackBootstrap
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-/******/ 		if(installedModules[moduleId]) {
-/******/ 			return installedModules[moduleId].exports;
-/******/ 		}
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-/******/ 		var module = installedModules[moduleId] = {
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-/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
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-/******/ 		module.l = true;
-/******/
-/******/ 		// Return the exports of the module
-/******/ 		return module.exports;
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-/******/
-/******/
-/******/ 	// expose the modules object (__webpack_modules__)
-/******/ 	__webpack_require__.m = modules;
-/******/
-/******/ 	// expose the module cache
-/******/ 	__webpack_require__.c = installedModules;
-/******/
-/******/ 	// define getter function for harmony exports
-/******/ 	__webpack_require__.d = function(exports, name, getter) {
-/******/ 		if(!__webpack_require__.o(exports, name)) {
-/******/ 			Object.defineProperty(exports, name, {
-/******/ 				configurable: false,
-/******/ 				enumerable: true,
-/******/ 				get: getter
-/******/ 			});
-/******/ 		}
-/******/ 	};
-/******/
-/******/ 	// getDefaultExport function for compatibility with non-harmony modules
-/******/ 	__webpack_require__.n = function(module) {
-/******/ 		var getter = module && module.__esModule ?
-/******/ 			function getDefault() { return module['default']; } :
-/******/ 			function getModuleExports() { return module; };
-/******/ 		__webpack_require__.d(getter, 'a', getter);
-/******/ 		return getter;
-/******/ 	};
-/******/
-/******/ 	// Object.prototype.hasOwnProperty.call
-/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
-/******/
-/******/ 	// __webpack_public_path__
-/******/ 	__webpack_require__.p = "/assets/";
-/******/
-/******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(__webpack_require__.s = 2);
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-    // e.g. PhantomJS IE11, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
-    timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
-    };
-  } else {
-    // fallback to setTimeout
-    /* istanbul ignore next */
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick(cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      });
-    }
-  };
-}();
-
-var _Set;
-/* istanbul ignore if */
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = function () {
-    function Set() {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has(key) {
-      return this.set[key] === true;
-    };
-    Set.prototype.add = function add(key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear() {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }();
-}
-
-/*  */
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep() {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub(sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub(sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend() {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify() {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget(_target) {
-  if (Dep.target) {
-    targetStack.push(Dep.target);
-  }
-  Dep.target = _target;
-}
-
-function popTarget() {
-  Dep.target = targetStack.pop();
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);['push', 'pop', 'shift', 'unshift', 'splice', 'sort', 'reverse'].forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator() {
-    var args = [],
-        len = arguments.length;
-    while (len--) args[len] = arguments[len];
-
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break;
-      case 'splice':
-        inserted = args.slice(2);
-        break;
-    }
-    if (inserted) {
-      ob.observeArray(inserted);
-    }
-    // notify change
-    ob.dep.notify();
-    return result;
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
- */
-var observerState = {
-  shouldConvert: true
-};
-
-/**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
- * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
- */
-var Observer = function Observer(value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    var augment = hasProto ? protoAugment : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through each property and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk(obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray(items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment an target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment(target, src, keys) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment an target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment(target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe(value, asRootData) {
-  if (!isObject(value)) {
-    return;
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (observerState.shouldConvert && !isServerRendering() && (Array.isArray(value) || isPlainObject(value)) && Object.isExtensible(value) && !value._isVue) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob;
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive$$1(obj, key, val, customSetter, shallow) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return;
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter() {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
-        }
-      }
-      return value;
-    },
-    set: function reactiveSetter(newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || newVal !== newVal && value !== value) {
-        return;
-      }
-      /* eslint-enable no-self-compare */
-      if (process.env.NODE_ENV !== 'production' && customSetter) {
-        customSetter();
-      }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set(target, key, val) {
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val;
-  }
-  if (hasOwn(target, key)) {
-    target[key] = val;
-    return val;
-  }
-  var ob = target.__ob__;
-  if (target._isVue || ob && ob.vmCount) {
-    process.env.NODE_ENV !== 'production' && warn('Avoid adding reactive properties to a Vue instance or its root $data ' + 'at runtime - declare it upfront in the data option.');
-    return val;
-  }
-  if (!ob) {
-    target[key] = val;
-    return val;
-  }
-  defineReactive$$1(ob.value, key, val);
-  ob.dep.notify();
-  return val;
-}
-
-/**
- * Delete a property and trigger change if necessary.
- */
-function del(target, key) {
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return;
-  }
-  var ob = target.__ob__;
-  if (target._isVue || ob && ob.vmCount) {
-    process.env.NODE_ENV !== 'production' && warn('Avoid deleting properties on a Vue instance or its root $data ' + '- just set it to null.');
-    return;
-  }
-  if (!hasOwn(target, key)) {
-    return;
-  }
-  delete target[key];
-  if (!ob) {
-    return;
-  }
-  ob.dep.notify();
-}
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray(value) {
-  for (var e = void 0, i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-if (process.env.NODE_ENV !== 'production') {
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn("option \"" + key + "\" can only be used during instance " + 'creation with the `new` keyword.');
-    }
-    return defaultStrat(parent, child);
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData(to, from) {
-  if (!from) {
-    return to;
-  }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to;
-}
-
-/**
- * Data
- */
-function mergeDataOrFn(parentVal, childVal, vm) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal;
-    }
-    if (!parentVal) {
-      return childVal;
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn() {
-      return mergeData(typeof childVal === 'function' ? childVal.call(this) : childVal, typeof parentVal === 'function' ? parentVal.call(this) : parentVal);
-    };
-  } else if (parentVal || childVal) {
-    return function mergedInstanceDataFn() {
-      // instance merge
-      var instanceData = typeof childVal === 'function' ? childVal.call(vm) : childVal;
-      var defaultData = typeof parentVal === 'function' ? parentVal.call(vm) : undefined;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData);
-      } else {
-        return defaultData;
-      }
-    };
-  }
-}
-
-strats.data = function (parentVal, childVal, vm) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      process.env.NODE_ENV !== 'production' && warn('The "data" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.', vm);
-
-      return parentVal;
-    }
-    return mergeDataOrFn.call(this, parentVal, childVal);
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm);
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook(parentVal, childVal) {
-  return childVal ? parentVal ? parentVal.concat(childVal) : Array.isArray(childVal) ? childVal : [childVal] : parentVal;
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets(parentVal, childVal) {
-  var res = Object.create(parentVal || null);
-  return childVal ? extend(res, childVal) : res;
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (parentVal, childVal) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) {
-    parentVal = undefined;
-  }
-  if (childVal === nativeWatch) {
-    childVal = undefined;
-  }
-  /* istanbul ignore if */
-  if (!childVal) {
-    return Object.create(parentVal || null);
-  }
-  if (!parentVal) {
-    return childVal;
-  }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key] = parent ? parent.concat(child) : Array.isArray(child) ? child : [child];
-  }
-  return ret;
-};
-
-/**
- * Other object hashes.
- */
-strats.props = strats.methods = strats.inject = strats.computed = function (parentVal, childVal) {
-  if (!parentVal) {
-    return childVal;
-  }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) {
-    extend(ret, childVal);
-  }
-  return ret;
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined ? parentVal : childVal;
-};
-
-/**
- * Validate component names
- */
-function checkComponents(options) {
-  for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + key);
-    }
-  }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps(options) {
-  var props = options.props;
-  if (!props) {
-    return;
-  }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else if (process.env.NODE_ENV !== 'production') {
-        warn('props must be strings when using array syntax.');
-      }
-    }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val) ? val : { type: val };
-    }
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject(options) {
-  var inject = options.inject;
-  if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
-    }
-  }
-}
-
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives(options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
-      }
-    }
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions(parent, child, vm) {
-  if (process.env.NODE_ENV !== 'production') {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child);
-  normalizeInject(child);
-  normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
-    }
-  }
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
-    }
-  }
-  function mergeField(key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options;
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset(options, type, id, warnMissing) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return;
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) {
-    return assets[id];
-  }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) {
-    return assets[camelizedId];
-  }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) {
-    return assets[PascalCaseId];
-  }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
-    warn('Failed to resolve ' + type.slice(0, -1) + ': ' + id, options);
-  }
-  return res;
-}
-
-/*  */
-
-function validateProp(key, propOptions, propsData, vm) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
-    observe(value);
-    observerState.shouldConvert = prevShouldConvert;
-  }
-  if (process.env.NODE_ENV !== 'production') {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value;
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue(vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined;
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if (process.env.NODE_ENV !== 'production' && isObject(def)) {
-    warn('Invalid default value for prop "' + key + '": ' + 'Props with type Object/Array must use a factory function ' + 'to return the default value.', vm);
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData && vm.$options.propsData[key] === undefined && vm._props[key] !== undefined) {
-    return vm._props[key];
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function' ? def.call(vm) : def;
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp(prop, name, value, vm, absent) {
-  if (prop.required && absent) {
-    warn('Missing required prop: "' + name + '"', vm);
-    return;
-  }
-  if (value == null && !prop.required) {
-    return;
-  }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-  if (!valid) {
-    warn('Invalid prop: type check failed for prop "' + name + '".' + ' Expected ' + expectedTypes.map(capitalize).join(', ') + ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.', vm);
-    return;
-  }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn('Invalid prop: custom validator check failed for prop "' + name + '".', vm);
-    }
-  }
-}
-
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
-
-function assertType(value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  };
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType(fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : '';
-}
-
-function isType(type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type);
-  }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true;
-    }
-  }
-  /* istanbul ignore next */
-  return false;
-}
-
-/*  */
-
-var mark;
-var measure;
-
-if (process.env.NODE_ENV !== 'production') {
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (perf && perf.mark && perf.measure && perf.clearMarks && perf.clearMeasures) {
-    mark = function (tag) {
-      return perf.mark(tag);
-    };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-var initProxy;
-
-if (process.env.NODE_ENV !== 'production') {
-  var allowedGlobals = makeMap('Infinity,undefined,NaN,isFinite,isNaN,' + 'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' + 'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' + 'require' // for Webpack/Browserify
-  );
-
-  var warnNonPresent = function (target, key) {
-    warn("Property or method \"" + key + "\" is not defined on the instance but " + "referenced during render. Make sure to declare reactive data " + "properties in the data option.", target);
-  };
-
-  var hasProxy = typeof Proxy !== 'undefined' && Proxy.toString().match(/native code/);
-
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set(target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn("Avoid overwriting built-in modifier in config.keyCodes: ." + key);
-          return false;
-        } else {
-          target[key] = value;
-          return true;
-        }
-      }
-    });
-  }
-
-  var hasHandler = {
-    has: function has(target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
-      if (!has && !isAllowed) {
-        warnNonPresent(target, key);
-      }
-      return has || !isAllowed;
-    }
-  };
-
-  var getHandler = {
-    get: function get(target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
-      }
-      return target[key];
-    }
-  };
-
-  initProxy = function initProxy(vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped ? getHandler : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-/*  */
-
-var VNode = function VNode(tag, data, children, text, elm, context, componentOptions, asyncFactory) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.functionalContext = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: {} };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance;
-};
-
-Object.defineProperties(VNode.prototype, prototypeAccessors);
-
-var createEmptyVNode = function (text) {
-  if (text === void 0) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node;
-};
-
-function createTextVNode(val) {
-  return new VNode(undefined, undefined, undefined, String(val));
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode(vnode) {
-  var cloned = new VNode(vnode.tag, vnode.data, vnode.children, vnode.text, vnode.elm, vnode.context, vnode.componentOptions, vnode.asyncFactory);
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  return cloned;
-}
-
-function cloneVNodes(vnodes) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i]);
-  }
-  return res;
-}
-
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  };
-});
-
-function createFnInvoker(fns) {
-  function invoker() {
-    var arguments$1 = arguments;
-
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments);
-    }
-  }
-  invoker.fns = fns;
-  return invoker;
-}
-
-function updateListeners(on, oldOn, add, remove$$1, vm) {
-  var name, cur, old, event;
-  for (name in on) {
-    cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    if (isUndef(cur)) {
-      process.env.NODE_ENV !== 'production' && warn("Invalid handler for event \"" + event.name + "\": got " + String(cur), vm);
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
-      }
-      add(event.name, cur, event.once, event.capture, event.passive);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
-    }
-  }
-}
-
-/*  */
-
-function mergeVNodeHook(def, hookKey, hook) {
-  var invoker;
-  var oldHook = def[hookKey];
-
-  function wrappedHook() {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
-
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData(data, Ctor, tag) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return;
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      if (process.env.NODE_ENV !== 'production') {
-        var keyInLowerCase = key.toLowerCase();
-        if (key !== keyInLowerCase && attrs && hasOwn(attrs, keyInLowerCase)) {
-          tip("Prop \"" + keyInLowerCase + "\" is passed to component " + formatComponentName(tag || Ctor) + ", but the declared prop name is" + " \"" + key + "\". " + "Note that HTML attributes are case-insensitive and camelCased " + "props need to use their kebab-case equivalents when using in-DOM " + "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\".");
-        }
-      }
-      checkProp(res, props, key, altKey, true) || checkProp(res, attrs, key, altKey, false);
-    }
-  }
-  return res;
-}
-
-function checkProp(res, hash, key, altKey, preserve) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true;
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true;
-    }
-  }
-  return false;
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren(children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children);
-    }
-  }
-  return children;
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren(children) {
-  return isPrimitive(children) ? [createTextVNode(children)] : Array.isArray(children) ? normalizeArrayChildren(children) : undefined;
-}
-
-function isTextNode(node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment);
-}
-
-function normalizeArrayChildren(children, nestedIndex) {
-  var res = [];
-  var i, c, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') {
-      continue;
-    }
-    last = res[res.length - 1];
-    //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, (nestedIndex || '') + "_" + i));
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        last.text += String(c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) && isDef(c.tag) && isUndef(c.key) && isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
-        }
-        res.push(c);
-      }
-    }
-  }
-  return res;
-}
-
-/*  */
-
-function ensureCtor(comp, base) {
-  if (comp.__esModule && comp.default) {
-    comp = comp.default;
-  }
-  return isObject(comp) ? base.extend(comp) : comp;
-}
-
-function createAsyncPlaceholder(factory, data, context, children, tag) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node;
-}
-
-function resolveAsyncComponent(factory, baseCtor, context) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp;
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved;
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp;
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function () {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender();
-      }
-    });
-
-    var reject = once(function (reason) {
-      process.env.NODE_ENV !== 'production' && warn("Failed to resolve async component: " + String(factory) + (reason ? "\nReason: " + reason : ''));
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender();
-      }
-    });
-
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender();
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(process.env.NODE_ENV !== 'production' ? "timeout (" + res.timeout + "ms)" : null);
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading ? factory.loadingComp : factory.resolved;
-  }
-}
-
-/*  */
-
-function getFirstComponentChild(children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && isDef(c.componentOptions)) {
-        return c;
-      }
-    }
-  }
-}
-
-/*  */
-
-/*  */
-
-function initEvents(vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
-  }
-}
-
-var target;
-
-function add(event, fn, once$$1) {
-  if (once$$1) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
-}
-
-function remove$1(event, fn) {
-  target.$off(event, fn);
-}
-
-function updateComponentListeners(vm, listeners, oldListeners) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
-}
-
-function eventsMixin(Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm;
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on() {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm;
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm;
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        this$1.$off(event[i$1], fn);
-      }
-      return vm;
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm;
-    }
-    if (arguments.length === 1) {
-      vm._events[event] = null;
-      return vm;
-    }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break;
-      }
-    }
-    return vm;
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    if (process.env.NODE_ENV !== 'production') {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip("Event \"" + lowerCaseEvent + "\" is emitted in component " + formatComponentName(vm) + " but the handler is registered for \"" + event + "\". " + "Note that HTML attributes are case-insensitive and you cannot use " + "v-on to listen to camelCase events when using in-DOM templates. " + "You should probably use \"" + hyphenate(event) + "\" instead of \"" + event + "\".");
-      }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, "event handler for \"" + event + "\"");
-        }
-      }
-    }
-    return vm;
-  };
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots(children, context) {
-  var slots = {};
-  if (!children) {
-    return slots;
-  }
-  var defaultSlot = [];
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.functionalContext === context) && child.data && child.data.slot != null) {
-      var name = child.data.slot;
-      var slot = slots[name] || (slots[name] = []);
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      defaultSlot.push(child);
-    }
-  }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
-  }
-  return slots;
-}
-
-function isWhitespace(node) {
-  return node.isComment || node.text === ' ';
-}
-
-function resolveScopedSlots(fns, // see flow/vnode
-res) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
-  }
-  return res;
-}
-
-/*  */
-
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function initLifecycle(vm) {
-  var options = vm.$options;
-
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
-
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
-
-function lifecycleMixin(Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */
-      , vm.$options._parentElm, vm.$options._refElm);
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    activeInstance = prevActiveInstance;
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
-
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
-
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return;
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-  };
-}
-
-function mountComponent(vm, el, hydrating) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    if (process.env.NODE_ENV !== 'production') {
-      /* istanbul ignore if */
-      if (vm.$options.template && vm.$options.template.charAt(0) !== '#' || vm.$options.el || el) {
-        warn('You are using the runtime-only build of Vue where the template ' + 'compiler is not available. Either pre-compile the templates into ' + 'render functions, or use the compiler-included build.', vm);
-      } else {
-        warn('Failed to mount component: template or render function not defined.', vm);
-      }
-    }
-  }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(name + " render", startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(name + " patch", startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  }
-
-  vm._watcher = new Watcher(vm, updateComponent, noop);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm;
-}
-
-function updateChildComponent(vm, propsData, listeners, parentVnode, renderChildren) {
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(renderChildren || // has new static slots
-  vm.$options._renderChildren || // has old static slots
-  parentVnode.data.scopedSlots || // has new scoped slots
-  vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
-
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
-
-  if (vm._vnode) {
-    // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
-
-  // update $attrs and $listensers hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
-
-  // update props
-  if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
-    }
-    observerState.shouldConvert = true;
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
-
-  // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = false;
-  }
-}
-
-function isInInactiveTree(vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) {
-      return true;
-    }
-  }
-  return false;
-}
-
-function activateChildComponent(vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return;
-    }
-  } else if (vm._directInactive) {
-    return;
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent(vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return;
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
-  }
-}
-
-function callHook(vm, hook) {
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, hook + " hook");
-      }
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-}
-
-/*  */
-
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState() {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue() {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) {
-    return a.id - b.id;
-  });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn('You may have an infinite update loop ' + (watcher.user ? "in watcher with expression \"" + watcher.expression + "\"" : "in a component render function."), watcher.vm);
-        break;
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks(queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
-      callHook(vm, 'updated');
-    }
-  }
-}
-
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent(vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks(queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher(watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
-
-/*  */
-
-var uid$2 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher(vm, expOrFn, cb, options) {
-  this.vm = vm;
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$2; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production' ? expOrFn.toString() : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = function () {};
-      process.env.NODE_ENV !== 'production' && warn("Failed watching path: \"" + expOrFn + "\" " + 'Watcher only accepts simple dot-delimited paths. ' + 'For full control, use a function instead.', vm);
-    }
-  }
-  this.value = this.lazy ? undefined : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get() {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, "getter for watcher \"" + this.expression + "\"");
-    } else {
-      throw e;
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value;
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep(dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps() {
-  var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update() {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run() {
-  if (this.active) {
-    var value = this.get();
-    if (value !== this.value ||
-    // Deep watchers and watchers on Object/Arrays should fire even
-    // when the value is the same, because the value may
-    // have mutated.
-    isObject(value) || this.deep) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, "callback for watcher \"" + this.expression + "\"");
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate() {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend() {
-  var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown() {
-  var this$1 = this;
-
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this$1.deps[i].removeSub(this$1);
-    }
-    this.active = false;
-  }
-};
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse(val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse(val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if (!isA && !isObject(val) || !Object.isExtensible(val)) {
-    return;
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return;
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) {
-      _traverse(val[i], seen);
-    }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) {
-      _traverse(val[keys[i]], seen);
-    }
-  }
-}
-
-/*  */
-
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy(target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter() {
-    return this[sourceKey][key];
-  };
-  sharedPropertyDefinition.set = function proxySetter(val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState(vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) {
-    initProps(vm, opts.props);
-  }
-  if (opts.methods) {
-    initMethods(vm, opts.methods);
-  }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) {
-    initComputed(vm, opts.computed);
-  }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function checkOptionType(vm, name) {
-  var option = vm.$options[name];
-  if (!isPlainObject(option)) {
-    warn("component option \"" + name + "\" should be an object.", vm);
-  }
-}
-
-function initProps(vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  observerState.shouldConvert = isRoot;
-  var loop = function (key) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
-        warn("\"" + key + "\" is a reserved attribute and cannot be used as component prop.", vm);
-      }
-      defineReactive$$1(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
-          warn("Avoid mutating a prop directly since the value will be " + "overwritten whenever the parent component re-renders. " + "Instead, use a data or computed property based on the prop's " + "value. Prop being mutated: \"" + key + "\"", vm);
-        }
-      });
-    } else {
-      defineReactive$$1(props, key, value);
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
-
-  for (var key in propsOptions) loop(key);
-  observerState.shouldConvert = true;
-}
-
-function initData(vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function' ? getData(data, vm) : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    process.env.NODE_ENV !== 'production' && warn('data functions should return an object:\n' + 'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function', vm);
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    if (process.env.NODE_ENV !== 'production') {
-      if (methods && hasOwn(methods, key)) {
-        warn("method \"" + key + "\" has already been defined as a data property.", vm);
-      }
-    }
-    if (props && hasOwn(props, key)) {
-      process.env.NODE_ENV !== 'production' && warn("The data property \"" + key + "\" is already declared as a prop. " + "Use prop default value instead.", vm);
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData(data, vm) {
-  try {
-    return data.call(vm);
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {};
-  }
-}
-
-var computedWatcherOptions = { lazy: true };
-
-function initComputed(vm, computed) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
-  var watchers = vm._computedWatchers = Object.create(null);
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (process.env.NODE_ENV !== 'production' && getter == null) {
-      warn("Getter is missing for computed property \"" + key + "\".", vm);
-    }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else if (process.env.NODE_ENV !== 'production') {
-      if (key in vm.$data) {
-        warn("The computed property \"" + key + "\" is already defined in data.", vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn("The computed property \"" + key + "\" is already defined as a prop.", vm);
-      }
-    }
-  }
-}
-
-function defineComputed(target, key, userDef) {
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get ? userDef.cache !== false ? createComputedGetter(key) : userDef.get : noop;
-    sharedPropertyDefinition.set = userDef.set ? userDef.set : noop;
-  }
-  if (process.env.NODE_ENV !== 'production' && sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn("Computed property \"" + key + "\" was assigned to but it has no setter.", this);
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function createComputedGetter(key) {
-  return function computedGetter() {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value;
-    }
-  };
-}
-
-function initMethods(vm, methods) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
-  var props = vm.$options.props;
-  for (var key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
-    if (process.env.NODE_ENV !== 'production') {
-      if (methods[key] == null) {
-        warn("method \"" + key + "\" has an undefined value in the component definition. " + "Did you reference the function correctly?", vm);
-      }
-      if (props && hasOwn(props, key)) {
-        warn("method \"" + key + "\" has already been defined as a prop.", vm);
-      }
-    }
-  }
-}
-
-function initWatch(vm, watch) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'watch');
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher(vm, keyOrFn, handler, options) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(keyOrFn, handler, options);
-}
-
-function stateMixin(Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () {
-    return this._data;
-  };
-  var propsDef = {};
-  propsDef.get = function () {
-    return this._props;
-  };
-  if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function (newData) {
-      warn('Avoid replacing instance root $data. ' + 'Use nested data properties instead.', this);
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
-
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
-
-  Vue.prototype.$watch = function (expOrFn, cb, options) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options);
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      cb.call(vm, watcher.value);
-    }
-    return function unwatchFn() {
-      watcher.teardown();
-    };
-  };
-}
-
-/*  */
-
-function initProvide(vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function' ? provide.call(vm) : provide;
-  }
-}
-
-function initInjections(vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    observerState.shouldConvert = false;
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn("Avoid mutating an injected value directly since the changes will be " + "overwritten whenever the provided component re-renders. " + "injection being mutated: \"" + key + "\"", vm);
-        });
-      } else {
-        defineReactive$$1(vm, key, result[key]);
-      }
-    });
-    observerState.shouldConvert = true;
-  }
-}
-
-function resolveInject(inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol ? Reflect.ownKeys(inject) : Object.keys(inject);
-
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key];
-      var source = vm;
-      while (source) {
-        if (source._provided && provideKey in source._provided) {
-          result[key] = source._provided[provideKey];
-          break;
-        }
-        source = source.$parent;
-      }
-      if (process.env.NODE_ENV !== 'production' && !source) {
-        warn("Injection \"" + key + "\" not found", vm);
-      }
-    }
-    return result;
-  }
-}
-
-/*  */
-
-function createFunctionalComponent(Ctor, propsData, data, context, children) {
-  var props = {};
-  var propOptions = Ctor.options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
-    }
-  } else {
-    if (isDef(data.attrs)) {
-      mergeProps(props, data.attrs);
-    }
-    if (isDef(data.props)) {
-      mergeProps(props, data.props);
-    }
-  }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) {
-    return createElement(_context, a, b, c, d, true);
-  };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || {},
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () {
-      return resolveSlots(children, context);
-    }
-  });
-  if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
-    }
-  }
-  return vnode;
-}
-
-function mergeProps(to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
-
-// hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init(vnode, hydrating, parentElm, refElm) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(vnode, activeInstance, parentElm, refElm);
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    }
-  },
-
-  prepatch: function prepatch(oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(child, options.propsData, // updated props
-    options.listeners, // updated listeners
-    vnode, // new parent vnode
-    options.children // new children
-    );
-  },
-
-  insert: function insert(vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
-
-  destroy: function destroy(vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  }
-};
-
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent(Ctor, data, context, children, tag) {
-  if (isUndef(Ctor)) {
-    return;
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn("Invalid Component definition: " + String(Ctor), context);
-    }
-    return;
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(asyncFactory, data, context, children, tag);
-    }
-  }
-
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children);
-  }
-
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
-    }
-  }
-
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode("vue-component-" + Ctor.cid + (name ? "-" + name : ''), data, undefined, undefined, undefined, context, { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children }, asyncFactory);
-  return vnode;
-}
-
-function createComponentInstanceForVnode(vnode, // we know it's MountedComponentVNode but flow doesn't
-parent, // activeInstance in lifecycle state
-parentElm, refElm) {
-  var vnodeComponentOptions = vnode.componentOptions;
-  var options = {
-    _isComponent: true,
-    parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
-    _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnodeComponentOptions.Ctor(options);
-}
-
-function mergeHooks(data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1(one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
-  };
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel(options, data) {
-  var prop = options.model && options.model.prop || 'value';
-  var event = options.model && options.model.event || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
-  } else {
-    on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement(context, tag, data, children, normalizationType, alwaysNormalize) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType);
-}
-
-function _createElement(context, tag, data, children, normalizationType) {
-  if (isDef(data) && isDef(data.__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn("Avoid using observed data object as vnode data: " + JSON.stringify(data) + "\n" + 'Always create fresh vnode data objects in each render!', context);
-    return createEmptyVNode();
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode();
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.key) && !isPrimitive(data.key)) {
-    warn('Avoid using non-primitive value as key, ' + 'use string/number value instead.', context);
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) && typeof children[0] === 'function') {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(config.parsePlatformTagName(tag), data, children, undefined, undefined, context);
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(tag, data, children, undefined, undefined, context);
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) {
-      applyNS(vnode, ns);
-    }
-    return vnode;
-  } else {
-    return createEmptyVNode();
-  }
-}
-
-function applyNS(vnode, ns) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    return;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
-      }
-    }
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList(val, render) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    ret._isVList = true;
-  }
-  return ret;
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot(name, fallback, props, bindObject) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  if (scopedSlotFn) {
-    // scoped slot
-    props = props || {};
-    if (bindObject) {
-      props = extend(extend({}, bindObject), props);
-    }
-    return scopedSlotFn(props) || fallback;
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn("Duplicate presence of slot \"" + name + "\" found in the same render tree " + "- this will likely cause render errors.", this);
-      slotNodes._rendered = true;
-    }
-    return slotNodes || fallback;
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter(id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity;
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- */
-function checkKeyCodes(eventKeyCode, key, builtInAlias) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1;
-  } else {
-    return keyCodes !== eventKeyCode;
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps(data, tag, value, asProp, isSync) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn('v-bind without argument expects an Object or Array value', this);
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function (key) {
-        if (key === 'class' || key === 'style' || isReservedAttribute(key)) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key) ? data.domProps || (data.domProps = {}) : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on["update:" + key] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop(key);
-    }
-  }
-  return data;
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic(index, isInFor) {
-  var tree = this._staticTrees[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree) ? cloneVNodes(tree) : cloneVNode(tree);
-  }
-  // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] = this.$options.staticRenderFns[index].call(this._renderProxy);
-  markStatic(tree, "__static__" + index, false);
-  return tree;
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce(tree, index, key) {
-  markStatic(tree, "__once__" + index + (key ? "_" + key : ""), true);
-  return tree;
-}
-
-function markStatic(tree, key, isOnce) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], key + "_" + i, isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
-
-function markStaticNode(node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners(data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn('v-on without argument expects an Object value', this);
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
-      }
-    }
-  }
-  return data;
-}
-
-/*  */
-
-function initRender(vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null;
-  var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) {
-    return createElement(vm, a, b, c, d, false);
-  };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) {
-    return createElement(vm, a, b, c, d, true);
-  };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-  /* istanbul ignore else */
-  if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, null, true);
-  }
-}
-
-function renderMixin(Vue) {
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this);
-  };
-
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var staticRenderFns = ref.staticRenderFns;
-    var _parentVnode = ref._parentVnode;
-
-    if (vm._isMounted) {
-      // clone slot nodes on re-renders
-      for (var key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
-      }
-    }
-
-    vm.$scopedSlots = _parentVnode && _parentVnode.data.scopedSlots || emptyObject;
-
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = [];
-    }
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render function");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        vnode = vm.$options.renderError ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e) : vm._vnode;
-      } else {
-        vnode = vm._vnode;
-      }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
-        warn('Multiple root nodes returned from render function. Render function ' + 'should return a single root node.', vm);
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode;
-  };
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce;
-  Vue.prototype._n = toNumber;
-  Vue.prototype._s = toString;
-  Vue.prototype._l = renderList;
-  Vue.prototype._t = renderSlot;
-  Vue.prototype._q = looseEqual;
-  Vue.prototype._i = looseIndexOf;
-  Vue.prototype._m = renderStatic;
-  Vue.prototype._f = resolveFilter;
-  Vue.prototype._k = checkKeyCodes;
-  Vue.prototype._b = bindObjectProps;
-  Vue.prototype._v = createTextVNode;
-  Vue.prototype._e = createEmptyVNode;
-  Vue.prototype._u = resolveScopedSlots;
-  Vue.prototype._g = bindObjectListeners;
-}
-
-/*  */
-
-var uid$1 = 0;
-
-function initMixin(Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$1++;
-
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-init:" + vm._uid;
-      endTag = "vue-perf-end:" + vm._uid;
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(resolveConstructorOptions(vm.constructor), options || {}, vm);
-    }
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      initProxy(vm);
-    } else {
-      vm._renderProxy = vm;
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
-
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(vm._name + " init", startTag, endTag);
-    }
-
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent(vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions(Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options;
-}
-
-function resolveModifiedOptions(Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) {
-        modified = {};
-      }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
-    }
-  }
-  return modified;
-}
-
-function dedupe(latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res;
-  } else {
-    return latest;
-  }
-}
-
-function Vue$3(options) {
-  if (process.env.NODE_ENV !== 'production' && !(this instanceof Vue$3)) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-  this._init(options);
-}
-
-initMixin(Vue$3);
-stateMixin(Vue$3);
-eventsMixin(Vue$3);
-lifecycleMixin(Vue$3);
-renderMixin(Vue$3);
-
-/*  */
-
-function initUse(Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = this._installedPlugins || (this._installedPlugins = []);
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this;
-    }
-
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this;
-  };
-}
-
-/*  */
-
-function initMixin$1(Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this;
-  };
-}
-
-/*  */
-
-function initExtend(Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
-
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId];
-    }
-
-    var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production') {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn('Invalid component name: "' + name + '". Component names ' + 'can only contain alphanumeric characters and the hyphen, ' + 'and must start with a letter.');
-      }
-    }
-
-    var Sub = function VueComponent(options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(Super.options, extendOptions);
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
-    }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
-    }
-
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
-
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
-
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
-
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub;
-  };
-}
-
-function initProps$1(Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
-  }
-}
-
-function initComputed$1(Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
-  }
-}
-
-/*  */
-
-function initAssetRegisters(Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (id, definition) {
-      if (!definition) {
-        return this.options[type + 's'][id];
-      } else {
-        /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production') {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + id);
-          }
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition;
-      }
-    };
-  });
-}
-
-/*  */
-
-var patternTypes = [String, RegExp, Array];
-
-function getComponentName(opts) {
-  return opts && (opts.Ctor.options.name || opts.tag);
-}
-
-function matches(pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1;
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1;
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name);
-  }
-  /* istanbul ignore next */
-  return false;
-}
-
-function pruneCache(cache, current, filter) {
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode);
-        }
-        cache[key] = null;
-      }
-    }
-  }
-}
-
-function pruneCacheEntry(vnode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy();
-  }
-}
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes
-  },
-
-  created: function created() {
-    this.cache = Object.create(null);
-  },
-
-  destroyed: function destroyed() {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache[key]);
-    }
-  },
-
-  watch: {
-    include: function include(val) {
-      pruneCache(this.cache, this._vnode, function (name) {
-        return matches(val, name);
-      });
-    },
-    exclude: function exclude(val) {
-      pruneCache(this.cache, this._vnode, function (name) {
-        return !matches(val, name);
-      });
-    }
-  },
-
-  render: function render() {
-    var vnode = getFirstComponentChild(this.$slots.default);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      if (name && (this.include && !matches(this.include, name) || this.exclude && matches(this.exclude, name))) {
-        return vnode;
-      }
-      var key = vnode.key == null
-      // same constructor may get registered as different local components
-      // so cid alone is not enough (#3269)
-      ? componentOptions.Ctor.cid + (componentOptions.tag ? "::" + componentOptions.tag : '') : vnode.key;
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance;
-      } else {
-        this.cache[key] = vnode;
-      }
-      vnode.data.keepAlive = true;
-    }
-    return vnode;
-  }
-};
-
-var builtInComponents = {
-  KeepAlive: KeepAlive
-};
-
-/*  */
-
-function initGlobalAPI(Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () {
-    return config;
-  };
-  if (process.env.NODE_ENV !== 'production') {
-    configDef.set = function () {
-      warn('Do not replace the Vue.config object, set individual fields instead.');
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
-
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
-  };
-
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
-
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
-
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
-
-  extend(Vue.options.components, builtInComponents);
-
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
-
-initGlobalAPI(Vue$3);
-
-Object.defineProperty(Vue$3.prototype, '$isServer', {
-  get: isServerRendering
-});
-
-Object.defineProperty(Vue$3.prototype, '$ssrContext', {
-  get: function get() {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext;
-  }
-});
-
-Vue$3.version = '2.4.2';
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
-var mustUseProp = function (tag, type, attr) {
-  return attr === 'value' && acceptValue(tag) && type !== 'button' || attr === 'selected' && tag === 'option' || attr === 'checked' && tag === 'input' || attr === 'muted' && tag === 'video';
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap('allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' + 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' + 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' + 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' + 'required,reversed,scoped,seamless,selected,sortable,translate,' + 'truespeed,typemustmatch,visible');
-
-var xlinkNS = 'http://www.w3.org/1999/xlink';
-
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink';
-};
-
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : '';
-};
-
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false;
-};
-
-/*  */
-
-function genClassForVnode(vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
-    }
-  }
-  return renderClass(data.staticClass, data.class);
-}
-
-function mergeClassData(child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class) ? [child.class, parent.class] : parent.class
-  };
-}
-
-function renderClass(staticClass, dynamicClass) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass));
-  }
-  /* istanbul ignore next */
-  return '';
-}
-
-function concat(a, b) {
-  return a ? b ? a + ' ' + b : a : b || '';
-}
-
-function stringifyClass(value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value);
-  }
-  if (isObject(value)) {
-    return stringifyObject(value);
-  }
-  if (typeof value === 'string') {
-    return value;
-  }
-  /* istanbul ignore next */
-  return '';
-}
-
-function stringifyArray(value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) {
-        res += ' ';
-      }
-      res += stringified;
-    }
-  }
-  return res;
-}
-
-function stringifyObject(value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) {
-        res += ' ';
-      }
-      res += key;
-    }
-  }
-  return res;
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap('html,body,base,head,link,meta,style,title,' + 'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' + 'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' + 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' + 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' + 'embed,object,param,source,canvas,script,noscript,del,ins,' + 'caption,col,colgroup,table,thead,tbody,td,th,tr,' + 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' + 'output,progress,select,textarea,' + 'details,dialog,menu,menuitem,summary,' + 'content,element,shadow,template,blockquote,iframe,tfoot');
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap('svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' + 'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' + 'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view', true);
-
-var isPreTag = function (tag) {
-  return tag === 'pre';
-};
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag);
-};
-
-function getTagNamespace(tag) {
-  if (isSVG(tag)) {
-    return 'svg';
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math';
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement(tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true;
-  }
-  if (isReservedTag(tag)) {
-    return false;
-  }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag];
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return unknownElementCache[tag] = el.constructor === window.HTMLUnknownElement || el.constructor === window.HTMLElement;
-  } else {
-    return unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString());
-  }
-}
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-function query(el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      process.env.NODE_ENV !== 'production' && warn('Cannot find element: ' + el);
-      return document.createElement('div');
-    }
-    return selected;
-  } else {
-    return el;
-  }
-}
-
-/*  */
-
-function createElement$1(tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm;
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm;
-}
-
-function createElementNS(namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName);
-}
-
-function createTextNode(text) {
-  return document.createTextNode(text);
-}
-
-function createComment(text) {
-  return document.createComment(text);
-}
-
-function insertBefore(parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild(node, child) {
-  node.removeChild(child);
-}
-
-function appendChild(node, child) {
-  node.appendChild(child);
-}
-
-function parentNode(node) {
-  return node.parentNode;
-}
-
-function nextSibling(node) {
-  return node.nextSibling;
-}
-
-function tagName(node) {
-  return node.tagName;
-}
-
-function setTextContent(node, text) {
-  node.textContent = text;
-}
-
-function setAttribute(node, key, val) {
-  node.setAttribute(key, val);
-}
-
-var nodeOps = Object.freeze({
-  createElement: createElement$1,
-  createElementNS: createElementNS,
-  createTextNode: createTextNode,
-  createComment: createComment,
-  insertBefore: insertBefore,
-  removeChild: removeChild,
-  appendChild: appendChild,
-  parentNode: parentNode,
-  nextSibling: nextSibling,
-  tagName: tagName,
-  setTextContent: setTextContent,
-  setAttribute: setAttribute
-});
-
-/*  */
-
-var ref = {
-  create: function create(_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update(oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
-    }
-  },
-  destroy: function destroy(vnode) {
-    registerRef(vnode, true);
-  }
-};
-
-function registerRef(vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!key) {
-    return;
-  }
-
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
-      }
-    } else {
-      refs[key] = ref;
-    }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
-
-/*
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
-
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function sameVnode(a, b) {
-  return a.key === b.key && (a.tag === b.tag && a.isComment === b.isComment && isDef(a.data) === isDef(b.data) && sameInputType(a, b) || isTrue(a.isAsyncPlaceholder) && a.asyncFactory === b.asyncFactory && isUndef(b.asyncFactory.error));
-}
-
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
-function sameInputType(a, b) {
-  if (a.tag !== 'input') {
-    return true;
-  }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB;
-}
-
-function createKeyToOldIdx(children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) {
-      map[key] = i;
-    }
-  }
-  return map;
-}
-
-function createPatchFunction(backend) {
-  var i, j;
-  var cbs = {};
-
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
-
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
-
-  function emptyNodeAt(elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm);
-  }
-
-  function createRmCb(childElm, listeners) {
-    function remove$$1() {
-      if (--remove$$1.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-    remove$$1.listeners = listeners;
-    return remove$$1;
-  }
-
-  function removeNode(el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
-    }
-  }
-
-  var inPre = 0;
-  function createElm(vnode, insertedVnodeQueue, parentElm, refElm, nested) {
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return;
-    }
-
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      if (process.env.NODE_ENV !== 'production') {
-        if (data && data.pre) {
-          inPre++;
-        }
-        if (!inPre && !vnode.ns && !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) && config.isUnknownElement(tag)) {
-          warn('Unknown custom element: <' + tag + '> - did you ' + 'register the component correctly? For recursive components, ' + 'make sure to provide the "name" option.', vnode.context);
-        }
-      }
-      vnode.elm = vnode.ns ? nodeOps.createElementNS(vnode.ns, tag) : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        inPre--;
-      }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent(vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true;
-      }
-    }
-  }
-
-  function initComponent(vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  function reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break;
-      }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert(parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
-      } else {
-        nodeOps.appendChild(parent, elm);
-      }
-    }
-  }
-
-  function createChildren(vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
-    }
-  }
-
-  function isPatchable(vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
-    }
-    return isDef(vnode.tag);
-  }
-
-  function invokeCreateHooks(vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) {
-        i.create(emptyNode, vnode);
-      }
-      if (isDef(i.insert)) {
-        insertedVnodeQueue.push(vnode);
-      }
-    }
-  }
-
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope(vnode) {
-    var i;
-    var ancestor = vnode;
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '');
-      }
-      ancestor = ancestor.parent;
-    }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) && i !== vnode.context && isDef(i = i.$options._scopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
-    }
-  }
-
-  function addVnodes(parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
-    }
-  }
-
-  function invokeDestroyHook(vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) {
-        i(vnode);
-      }
-      for (i = 0; i < cbs.destroy.length; ++i) {
-        cbs.destroy[i](vnode);
-      }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
-    }
-  }
-
-  function removeVnodes(parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else {
-          // Text node
-          removeNode(ch.elm);
-        }
-      }
-    }
-  }
-
-  function removeAndInvokeRemoveHook(vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
-      }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
-      }
-    } else {
-      removeNode(vnode.elm);
-    }
-  }
-
-  function updateChildren(parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, elmToMove, refElm;
-
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) {
-        // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) {
-        // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) {
-          oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);
-        }
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
-        if (isUndef(idxInOld)) {
-          // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          newStartVnode = newCh[++newStartIdx];
-        } else {
-          elmToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !elmToMove) {
-            warn('It seems there are duplicate keys that is causing an update error. ' + 'Make sure each v-for item has a unique key.');
-          }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
-          }
-        }
-      }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly) {
-    if (oldVnode === vnode) {
-      return;
-    }
-
-    var elm = vnode.elm = oldVnode.elm;
-
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return;
-    }
-
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) && isTrue(oldVnode.isStatic) && vnode.key === oldVnode.key && (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return;
-    }
-
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
-
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) {
-        cbs.update[i](oldVnode, vnode);
-      }
-      if (isDef(i = data.hook) && isDef(i = i.update)) {
-        i(oldVnode, vnode);
-      }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) {
-          updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly);
-        }
-      } else if (isDef(ch)) {
-        if (isDef(oldVnode.text)) {
-          nodeOps.setTextContent(elm, '');
-        }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) {
-        i(oldVnode, vnode);
-      }
-    }
-  }
-
-  function invokeInsertHook(vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
-
-  var bailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
-
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate(elm, vnode, insertedVnodeQueue) {
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm;
-      vnode.isAsyncPlaceholder = true;
-      return true;
-    }
-    if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode)) {
-        return false;
-      }
-    }
-    vnode.elm = elm;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) {
-        i(vnode, true /* hydrating */);
-      }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true;
-      }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          var childrenMatch = true;
-          var childNode = elm.firstChild;
-          for (var i$1 = 0; i$1 < children.length; i$1++) {
-            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
-              childrenMatch = false;
-              break;
-            }
-            childNode = childNode.nextSibling;
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if (process.env.NODE_ENV !== 'production' && typeof console !== 'undefined' && !bailed) {
-              bailed = true;
-              console.warn('Parent: ', elm);
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-            }
-            return false;
-          }
-        }
-      }
-      if (isDef(data)) {
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break;
-          }
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-    return true;
-  }
-
-  function assertNodeMatch(node, vnode) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase());
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3);
-    }
-  }
-
-  return function patch(oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) {
-        invokeDestroyHook(oldVnode);
-      }
-      return;
-    }
-
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
-
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode;
-            } else if (process.env.NODE_ENV !== 'production') {
-              warn('The client-side rendered virtual DOM tree is not matching ' + 'server-rendered content. This is likely caused by incorrect ' + 'HTML markup, for example nesting block-level elements inside ' + '<p>, or missing <tbody>. Bailing hydration and performing ' + 'full client-side render.');
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
-        createElm(vnode, insertedVnodeQueue,
-        // extremely rare edge case: do not insert if old element is in a
-        // leaving transition. Only happens when combining transition +
-        // keep-alive + HOCs. (#4590)
-        oldElm._leaveCb ? null : parentElm$1, nodeOps.nextSibling(oldElm));
-
-        if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
-          var ancestor = vnode.parent;
-          while (ancestor) {
-            ancestor.elm = vnode.elm;
-            ancestor = ancestor.parent;
-          }
-          if (isPatchable(vnode)) {
-            for (var i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent);
-            }
-          }
-        }
-
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
-      }
-    }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm;
-  };
-}
-
-/*  */
-
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives(vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-};
-
-function updateDirectives(oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
-  }
-}
-
-function _update(oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
-
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
-
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
-    }
-  }
-
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
-    }
-  }
-}
-
-var emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1(dirs, vm) {
-  var res = Object.create(null);
-  if (!dirs) {
-    return res;
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      dir.modifiers = emptyModifiers;
-    }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  return res;
-}
-
-function getRawDirName(dir) {
-  return dir.rawName || dir.name + "." + Object.keys(dir.modifiers || {}).join('.');
-}
-
-function callHook$1(dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, "directive " + dir.name + " " + hook + " hook");
-    }
-  }
-}
-
-var baseModules = [ref, directives];
-
-/*  */
-
-function updateAttrs(oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return;
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return;
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
-
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  /* istanbul ignore if */
-  if (isIE9 && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
-      }
-    }
-  }
-}
-
-function setAttr(el, key, value) {
-  if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      el.setAttribute(key, key);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      el.setAttribute(key, value);
-    }
-  }
-}
-
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-};
-
-/*  */
-
-function updateClass(oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (isUndef(data.staticClass) && isUndef(data.class) && (isUndef(oldData) || isUndef(oldData.staticClass) && isUndef(oldData.class))) {
-    return;
-  }
-
-  var cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-};
-
-/*  */
-
-var validDivisionCharRE = /[\w).+\-_$\]]/;
-
-function parseFilters(exp) {
-  var inSingle = false;
-  var inDouble = false;
-  var inTemplateString = false;
-  var inRegex = false;
-  var curly = 0;
-  var square = 0;
-  var paren = 0;
-  var lastFilterIndex = 0;
-  var c, prev, i, expression, filters;
-
-  for (i = 0; i < exp.length; i++) {
-    prev = c;
-    c = exp.charCodeAt(i);
-    if (inSingle) {
-      if (c === 0x27 && prev !== 0x5C) {
-        inSingle = false;
-      }
-    } else if (inDouble) {
-      if (c === 0x22 && prev !== 0x5C) {
-        inDouble = false;
-      }
-    } else if (inTemplateString) {
-      if (c === 0x60 && prev !== 0x5C) {
-        inTemplateString = false;
-      }
-    } else if (inRegex) {
-      if (c === 0x2f && prev !== 0x5C) {
-        inRegex = false;
-      }
-    } else if (c === 0x7C && // pipe
-    exp.charCodeAt(i + 1) !== 0x7C && exp.charCodeAt(i - 1) !== 0x7C && !curly && !square && !paren) {
-      if (expression === undefined) {
-        // first filter, end of expression
-        lastFilterIndex = i + 1;
-        expression = exp.slice(0, i).trim();
-      } else {
-        pushFilter();
-      }
-    } else {
-      switch (c) {
-        case 0x22:
-          inDouble = true;break; // "
-        case 0x27:
-          inSingle = true;break; // '
-        case 0x60:
-          inTemplateString = true;break; // `
-        case 0x28:
-          paren++;break; // (
-        case 0x29:
-          paren--;break; // )
-        case 0x5B:
-          square++;break; // [
-        case 0x5D:
-          square--;break; // ]
-        case 0x7B:
-          curly++;break; // {
-        case 0x7D:
-          curly--;break; // }
-      }
-      if (c === 0x2f) {
-        // /
-        var j = i - 1;
-        var p = void 0;
-        // find first non-whitespace prev char
-        for (; j >= 0; j--) {
-          p = exp.charAt(j);
-          if (p !== ' ') {
-            break;
-          }
-        }
-        if (!p || !validDivisionCharRE.test(p)) {
-          inRegex = true;
-        }
-      }
-    }
-  }
-
-  if (expression === undefined) {
-    expression = exp.slice(0, i).trim();
-  } else if (lastFilterIndex !== 0) {
-    pushFilter();
-  }
-
-  function pushFilter() {
-    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-    lastFilterIndex = i + 1;
-  }
-
-  if (filters) {
-    for (i = 0; i < filters.length; i++) {
-      expression = wrapFilter(expression, filters[i]);
-    }
-  }
-
-  return expression;
-}
-
-function wrapFilter(exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return "_f(\"" + filter + "\")(" + exp + ")";
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return "_f(\"" + name + "\")(" + exp + "," + args;
-  }
-}
-
-/*  */
-
-function baseWarn(msg) {
-  console.error("[Vue compiler]: " + msg);
-}
-
-function pluckModuleFunction(modules, key) {
-  return modules ? modules.map(function (m) {
-    return m[key];
-  }).filter(function (_) {
-    return _;
-  }) : [];
-}
-
-function addProp(el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
-}
-
-function addAttr(el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
-}
-
-function addDirective(el, name, rawName, value, arg, modifiers) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
-}
-
-function addHandler(el, name, value, modifiers, important, warn) {
-  // warn prevent and passive modifier
-  /* istanbul ignore if */
-  if (process.env.NODE_ENV !== 'production' && warn && modifiers && modifiers.prevent && modifiers.passive) {
-    warn('passive and prevent can\'t be used together. ' + 'Passive handler can\'t prevent default event.');
-  }
-  // check capture modifier
-  if (modifiers && modifiers.capture) {
-    delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
-  }
-  if (modifiers && modifiers.once) {
-    delete modifiers.once;
-    name = '~' + name; // mark the event as once
-  }
-  /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
-    delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
-  }
-  var events;
-  if (modifiers && modifiers.native) {
-    delete modifiers.native;
-    events = el.nativeEvents || (el.nativeEvents = {});
-  } else {
-    events = el.events || (el.events = {});
-  }
-  var newHandler = { value: value, modifiers: modifiers };
-  var handlers = events[name];
-  /* istanbul ignore if */
-  if (Array.isArray(handlers)) {
-    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-  } else if (handlers) {
-    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-  } else {
-    events[name] = newHandler;
-  }
-}
-
-function getBindingAttr(el, name, getStatic) {
-  var dynamicValue = getAndRemoveAttr(el, ':' + name) || getAndRemoveAttr(el, 'v-bind:' + name);
-  if (dynamicValue != null) {
-    return parseFilters(dynamicValue);
-  } else if (getStatic !== false) {
-    var staticValue = getAndRemoveAttr(el, name);
-    if (staticValue != null) {
-      return JSON.stringify(staticValue);
-    }
-  }
-}
-
-function getAndRemoveAttr(el, name) {
-  var val;
-  if ((val = el.attrsMap[name]) != null) {
-    var list = el.attrsList;
-    for (var i = 0, l = list.length; i < l; i++) {
-      if (list[i].name === name) {
-        list.splice(i, 1);
-        break;
-      }
-    }
-  }
-  return val;
-}
-
-/*  */
-
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel(el, value, modifiers) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
-
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression = "(typeof " + baseValueExpression + " === 'string'" + "? " + baseValueExpression + ".trim()" + ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-  var assignment = genAssignmentCode(value, valueExpression);
-
-  el.model = {
-    value: "(" + value + ")",
-    expression: "\"" + value + "\"",
-    callback: "function (" + baseValueExpression + ") {" + assignment + "}"
-  };
-}
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode(value, assignment) {
-  var modelRs = parseModel(value);
-  if (modelRs.idx === null) {
-    return value + "=" + assignment;
-  } else {
-    return "$set(" + modelRs.exp + ", " + modelRs.idx + ", " + assignment + ")";
-  }
-}
-
-/**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
- *
- * for loop possible cases:
- *
- * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
- *
- */
-
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
-
-function parseModel(val) {
-  str = val;
-  len = str.length;
-  index$1 = expressionPos = expressionEndPos = 0;
-
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
-    };
-  }
-
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
-
-  return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
-  };
-}
-
-function next() {
-  return str.charCodeAt(++index$1);
-}
-
-function eof() {
-  return index$1 >= len;
-}
-
-function isStringStart(chr) {
-  return chr === 0x22 || chr === 0x27;
-}
-
-function parseBracket(chr) {
-  var inBracket = 1;
-  expressionPos = index$1;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue;
-    }
-    if (chr === 0x5B) {
-      inBracket++;
-    }
-    if (chr === 0x5D) {
-      inBracket--;
-    }
-    if (inBracket === 0) {
-      expressionEndPos = index$1;
-      break;
-    }
-  }
-}
-
-function parseString(chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break;
-    }
-  }
-}
-
-/*  */
-
-var warn$1;
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-function model(el, dir, _warn) {
-  warn$1 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
-
-  if (process.env.NODE_ENV !== 'production') {
-    var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (tag === 'input' && dynamicType) {
-      warn$1("<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" + "v-model does not support dynamic input types. Use v-if branches instead.");
-    }
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1("<" + el.tag + " v-model=\"" + value + "\" type=\"file\">:\n" + "File inputs are read only. Use a v-on:change listener instead.");
-    }
-  }
-
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false;
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false;
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$1("<" + el.tag + " v-model=\"" + value + "\">: " + "v-model is not supported on this element type. " + 'If you are working with contenteditable, it\'s recommended to ' + 'wrap a library dedicated for that purpose inside a custom component.');
-  }
-
-  // ensure runtime directive metadata
-  return true;
-}
-
-function genCheckboxModel(el, value, modifiers) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked', "Array.isArray(" + value + ")" + "?_i(" + value + "," + valueBinding + ")>-1" + (trueValueBinding === 'true' ? ":(" + value + ")" : ":_q(" + value + "," + trueValueBinding + ")"));
-  addHandler(el, CHECKBOX_RADIO_TOKEN, "var $$a=" + value + "," + '$$el=$event.target,' + "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" + 'if(Array.isArray($$a)){' + "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," + '$$i=_i($$a,$$v);' + "if($$el.checked){$$i<0&&(" + value + "=$$a.concat($$v))}" + "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" + "}else{" + genAssignmentCode(value, '$$c') + "}", null, true);
-}
-
-function genRadioModel(el, value, modifiers) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? "_n(" + valueBinding + ")" : valueBinding;
-  addProp(el, 'checked', "_q(" + value + "," + valueBinding + ")");
-  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect(el, value, modifiers) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" + ".call($event.target.options,function(o){return o.selected})" + ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" + "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + genAssignmentCode(value, assignment);
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel(el, value, modifiers) {
-  var type = el.attrsMap.type;
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy ? 'change' : type === 'range' ? RANGE_TOKEN : 'input';
-
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', "(" + value + ")");
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents(on) {
-  var event;
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    // Chrome fires microtasks in between click/change, leads to #4521
-    event = isChrome ? 'click' : 'change';
-    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function add$1(event, handler, once$$1, capture, passive) {
-  if (once$$1) {
-    var oldHandler = handler;
-    var _target = target$1; // save current target element in closure
-    handler = function (ev) {
-      var res = arguments.length === 1 ? oldHandler(ev) : oldHandler.apply(null, arguments);
-      if (res !== null) {
-        remove$2(event, handler, capture, _target);
-      }
-    };
-  }
-  target$1.addEventListener(event, handler, supportsPassive ? { capture: capture, passive: passive } : capture);
-}
-
-function remove$2(event, handler, capture, _target) {
-  (_target || target$1).removeEventListener(event, handler, capture);
-}
-
-function updateDOMListeners(oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return;
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-};
-
-/*  */
-
-function updateDOMProps(oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return;
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) {
-        vnode.children.length = 0;
-      }
-      if (cur === oldProps[key]) {
-        continue;
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, vnode, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue(elm, vnode, checkVal) {
-  return !elm.composing && (vnode.tag === 'option' || isDirty(elm, checkVal) || isInputChanged(elm, checkVal));
-}
-
-function isDirty(elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try {
-    notInFocus = document.activeElement !== elm;
-  } catch (e) {}
-  return notInFocus && elm.value !== checkVal;
-}
-
-function isInputChanged(elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal);
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim();
-  }
-  return value !== newVal;
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-};
-
-/*  */
-
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res;
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData(data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle ? extend(data.staticStyle, style) : style;
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding(bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle);
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle);
-  }
-  return bindingStyle;
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle(vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
-        extend(res, styleData);
-      }
-    }
-  }
-
-  if (styleData = normalizeStyleData(vnode.data)) {
-    extend(res, styleData);
-  }
-
-  var parentNode = vnode;
-  while (parentNode = parentNode.parent) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
-    }
-  }
-  return res;
-}
-
-/*  */
-
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
-
-var vendorNames = ['Webkit', 'Moz', 'ms'];
-
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && prop in emptyStyle) {
-    return prop;
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name;
-    }
-  }
-});
-
-function updateStyle(oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-
-  if (isUndef(data.staticStyle) && isUndef(data.style) && isUndef(oldData.staticStyle) && isUndef(oldData.style)) {
-    return;
-  }
-
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
-
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
-
-  var style = normalizeStyleBinding(vnode.data.style) || {};
-
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likley wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__) ? extend({}, style) : style;
-
-  var newStyle = getStyle(vnode, true);
-
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-};
-
-/*  */
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass(el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return;
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) {
-        return el.classList.add(c);
-      });
-    } else {
-      el.classList.add(cls);
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
-    }
-  }
-}
-
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass(el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return;
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) {
-        return el.classList.remove(c);
-      });
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
-    }
-  }
-}
-
-/*  */
-
-function resolveTransition(def$$1) {
-  if (!def$$1) {
-    return;
-  }
-  /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
-    var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
-    }
-    extend(res, def$$1);
-    return res;
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1);
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: name + "-enter",
-    enterToClass: name + "-enter-to",
-    enterActiveClass: name + "-enter-active",
-    leaveClass: name + "-leave",
-    leaveToClass: name + "-leave-to",
-    leaveActiveClass: name + "-leave-active"
-  };
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined && window.onwebkittransitionend !== undefined) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined && window.onwebkitanimationend !== undefined) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
-  }
-}
-
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser && window.requestAnimationFrame ? window.requestAnimationFrame.bind(window) : setTimeout;
-
-function nextFrame(fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass(el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass(el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds(el, expectedType, cb) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) {
-    return cb();
-  }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
-    }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo(el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
-    }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0 ? transitionTimeout > animationTimeout ? TRANSITION : ANIMATION : null;
-    propCount = type ? type === TRANSITION ? transitionDurations.length : animationDurations.length : 0;
-  }
-  var hasTransform = type === TRANSITION && transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  };
-}
-
-function getTimeout(delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i]);
-  }));
-}
-
-function toMs(s) {
-  return Number(s.slice(0, -1)) * 1000;
-}
-
-/*  */
-
-function enter(vnode, toggleDisplay) {
-  var el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return;
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return;
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return;
-  }
-
-  var startClass = isAppear && appearClass ? appearClass : enterClass;
-  var activeClass = isAppear && appearActiveClass ? appearActiveClass : enterActiveClass;
-  var toClass = isAppear && appearToClass ? appearToClass : enterToClass;
-
-  var beforeEnterHook = isAppear ? beforeAppear || beforeEnter : beforeEnter;
-  var enterHook = isAppear ? typeof appear === 'function' ? appear : enter : enter;
-  var afterEnterHook = isAppear ? afterAppear || afterEnter : afterEnter;
-  var enterCancelledHook = isAppear ? appearCancelled || enterCancelled : enterCancelled;
-
-  var explicitEnterDuration = toNumber(isObject(duration) ? duration.enter : duration);
-
-  if (process.env.NODE_ENV !== 'production' && explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
-
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
-    }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode && pendingNode.tag === vnode.tag && pendingNode.elm._leaveCb) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
-  }
-
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      addTransitionClass(el, toClass);
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration);
-        } else {
-          whenTransitionEnds(el, type, cb);
-        }
-      }
-    });
-  }
-
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
-
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
-
-function leave(vnode, rm) {
-  var el = vnode.elm;
-
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return rm();
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb) || el.nodeType !== 1) {
-    return;
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(isObject(duration) ? duration.leave : duration);
-
-  if (process.env.NODE_ENV !== 'production' && isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
-
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
-
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
-
-  function performLeave() {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return;
-    }
-    // record leaving element
-    if (!vnode.data.show) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[vnode.key] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        addTransitionClass(el, leaveToClass);
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration(val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn("<transition> explicit " + name + " duration is not a valid number - " + "got " + JSON.stringify(val) + ".", vnode.context);
-  } else if (isNaN(val)) {
-    warn("<transition> explicit " + name + " duration is NaN - " + 'the duration expression might be incorrect.', vnode.context);
-  }
-}
-
-function isValidDuration(val) {
-  return typeof val === 'number' && !isNaN(val);
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength(fn) {
-  if (isUndef(fn)) {
-    return false;
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(Array.isArray(invokerFns) ? invokerFns[0] : invokerFns);
-  } else {
-    return (fn._length || fn.length) > 1;
-  }
-}
-
-function _enter(_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
-
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1(vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {};
-
-var platformModules = [attrs, klass, events, domProps, style, transition];
-
-/*  */
-
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
-
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
-
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var model$1 = {
-  inserted: function inserted(el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      var cb = function () {
-        setSelected(el, binding, vnode.context);
-      };
-      cb();
-      /* istanbul ignore if */
-      if (isIE || isEdge) {
-        setTimeout(cb, 0);
-      }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart);
-          el.addEventListener('compositionend', onCompositionEnd);
-        }
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
-        }
-      }
-    }
-  },
-  componentUpdated: function componentUpdated(el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) {
-        return !looseEqual(o, prevOptions[i]);
-      })) {
-        trigger(el, 'change');
-      }
-    }
-  }
-};
-
-function setSelected(el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    process.env.NODE_ENV !== 'production' && warn("<select multiple v-model=\"" + binding.expression + "\"> " + "expects an Array value for its binding, but got " + Object.prototype.toString.call(value).slice(8, -1), vm);
-    return;
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return;
-      }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function getValue(option) {
-  return '_value' in option ? option._value : option.value;
-}
-
-function onCompositionStart(e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd(e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) {
-    return;
-  }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger(el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode(vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition) ? locateNode(vnode.componentInstance._vnode) : vnode;
-}
-
-var show = {
-  bind: function bind(el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay = el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
-
-  update: function update(el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
-
-    /* istanbul ignore if */
-    if (value === oldValue) {
-      return;
-    }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
-
-  unbind: function unbind(el, binding, vnode, oldVnode, isDestroy) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-};
-
-var platformDirectives = {
-  model: model$1,
-  show: show
-};
-
-/*  */
-
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild(vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children));
-  } else {
-    return vnode;
-  }
-}
-
-function extractTransitionData(comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
-  }
-  return data;
-}
-
-function placeholder(h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    });
-  }
-}
-
-function hasParentTransition(vnode) {
-  while (vnode = vnode.parent) {
-    if (vnode.data.transition) {
-      return true;
-    }
-  }
-}
-
-function isSameChild(child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag;
-}
-
-function isAsyncPlaceholder(node) {
-  return node.isComment && node.asyncFactory;
-}
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-
-  render: function render(h) {
-    var this$1 = this;
-
-    var children = this.$options._renderChildren;
-    if (!children) {
-      return;
-    }
-
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) {
-      return c.tag || isAsyncPlaceholder(c);
-    });
-    /* istanbul ignore if */
-    if (!children.length) {
-      return;
-    }
-
-    // warn multiple elements
-    if (process.env.NODE_ENV !== 'production' && children.length > 1) {
-      warn('<transition> can only be used on a single element. Use ' + '<transition-group> for lists.', this.$parent);
-    }
-
-    var mode = this.mode;
-
-    // warn invalid mode
-    if (process.env.NODE_ENV !== 'production' && mode && mode !== 'in-out' && mode !== 'out-in') {
-      warn('invalid <transition> mode: ' + mode, this.$parent);
-    }
-
-    var rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild;
-    }
-
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild;
-    }
-
-    if (this._leaving) {
-      return placeholder(h, rawChild);
-    }
-
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + this._uid + "-";
-    child.key = child.key == null ? child.isComment ? id + 'comment' : id + child.tag : isPrimitive(child.key) ? String(child.key).indexOf(id) === 0 ? child.key : id + child.key : child.key;
-
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
-
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) {
-      return d.name === 'show';
-    })) {
-      child.data.show = true;
-    }
-
-    if (oldChild && oldChild.data && !isSameChild(child, oldChild) && !isAsyncPlaceholder(oldChild)) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild);
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild;
-        }
-        var delayedLeave;
-        var performLeave = function () {
-          delayedLeave();
-        };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) {
-          delayedLeave = leave;
-        });
-      }
-    }
-
-    return rawChild;
-  }
-};
-
-/*  */
-
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
-
-delete props.mode;
-
-var TransitionGroup = {
-  props: props,
-
-  render: function render(h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c;(c.data || (c.data = {})).transition = transitionData;
-        } else if (process.env.NODE_ENV !== 'production') {
-          var opts = c.componentOptions;
-          var name = opts ? opts.Ctor.options.name || opts.tag || '' : c.tag;
-          warn("<transition-group> children must be keyed: <" + name + ">");
-        }
-      }
-    }
-
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
-        }
-      }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
-
-    return h(tag, null, children);
-  },
-
-  beforeUpdate: function beforeUpdate() {
-    // force removing pass
-    this.__patch__(this._vnode, this.kept, false, // hydrating
-    true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
-  updated: function updated() {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || (this.name || 'v') + '-move';
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return;
-    }
-
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
-
-    // force reflow to put everything in position
-    var body = document.body;
-    var f = body.offsetHeight; // eslint-disable-line
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb(e) {
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove: function hasMove(el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false;
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove;
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) {
-          removeClass(clone, cls);
-        });
-      }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return this._hasMove = info.hasTransform;
-    }
-  }
-};
-
-function callPendingCbs(c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
-  }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition(c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation(c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-};
-
-/*  */
-
-// install platform specific utils
-Vue$3.config.mustUseProp = mustUseProp;
-Vue$3.config.isReservedTag = isReservedTag;
-Vue$3.config.isReservedAttr = isReservedAttr;
-Vue$3.config.getTagNamespace = getTagNamespace;
-Vue$3.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue$3.options.directives, platformDirectives);
-extend(Vue$3.options.components, platformComponents);
-
-// install platform patch function
-Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue$3.prototype.$mount = function (el, hydrating) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating);
-};
-
-// devtools global hook
-/* istanbul ignore next */
-setTimeout(function () {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue$3);
-    } else if (process.env.NODE_ENV !== 'production' && isChrome) {
-      console[console.info ? 'info' : 'log']('Download the Vue Devtools extension for a better development experience:\n' + 'https://github.com/vuejs/vue-devtools');
-    }
-  }
-  if (process.env.NODE_ENV !== 'production' && config.productionTip !== false && inBrowser && typeof console !== 'undefined') {
-    console[console.info ? 'info' : 'log']("You are running Vue in development mode.\n" + "Make sure to turn on production mode when deploying for production.\n" + "See more tips at https://vuejs.org/guide/deployment.html");
-  }
-}, 0);
-
-/*  */
-
-// check whether current browser encodes a char inside attribute values
-function shouldDecode(content, encoded) {
-  var div = document.createElement('div');
-  div.innerHTML = "<div a=\"" + content + "\"/>";
-  return div.innerHTML.indexOf(encoded) > 0;
-}
-
-// #3663
-// IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;
-
-/*  */
-
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
-var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-
-var buildRegex = cached(function (delimiters) {
-  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
-  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
-  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g');
-});
-
-function parseText(text, delimiters) {
-  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-  if (!tagRE.test(text)) {
-    return;
-  }
-  var tokens = [];
-  var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
-  while (match = tagRE.exec(text)) {
-    index = match.index;
-    // push text token
-    if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
-    }
-    // tag token
-    var exp = parseFilters(match[1].trim());
-    tokens.push("_s(" + exp + ")");
-    lastIndex = index + match[0].length;
-  }
-  if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
-  }
-  return tokens.join('+');
-}
-
-/*  */
-
-function transformNode(el, options) {
-  var warn = options.warn || baseWarn;
-  var staticClass = getAndRemoveAttr(el, 'class');
-  if (process.env.NODE_ENV !== 'production' && staticClass) {
-    var expression = parseText(staticClass, options.delimiters);
-    if (expression) {
-      warn("class=\"" + staticClass + "\": " + 'Interpolation inside attributes has been removed. ' + 'Use v-bind or the colon shorthand instead. For example, ' + 'instead of <div class="{{ val }}">, use <div :class="val">.');
-    }
-  }
-  if (staticClass) {
-    el.staticClass = JSON.stringify(staticClass);
-  }
-  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-  if (classBinding) {
-    el.classBinding = classBinding;
-  }
-}
-
-function genData(el) {
-  var data = '';
-  if (el.staticClass) {
-    data += "staticClass:" + el.staticClass + ",";
-  }
-  if (el.classBinding) {
-    data += "class:" + el.classBinding + ",";
-  }
-  return data;
-}
-
-var klass$1 = {
-  staticKeys: ['staticClass'],
-  transformNode: transformNode,
-  genData: genData
-};
-
-/*  */
-
-function transformNode$1(el, options) {
-  var warn = options.warn || baseWarn;
-  var staticStyle = getAndRemoveAttr(el, 'style');
-  if (staticStyle) {
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      var expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
-        warn("style=\"" + staticStyle + "\": " + 'Interpolation inside attributes has been removed. ' + 'Use v-bind or the colon shorthand instead. For example, ' + 'instead of <div style="{{ val }}">, use <div :style="val">.');
-      }
-    }
-    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
-  }
-
-  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-  if (styleBinding) {
-    el.styleBinding = styleBinding;
-  }
-}
-
-function genData$1(el) {
-  var data = '';
-  if (el.staticStyle) {
-    data += "staticStyle:" + el.staticStyle + ",";
-  }
-  if (el.styleBinding) {
-    data += "style:(" + el.styleBinding + "),";
-  }
-  return data;
-}
-
-var style$1 = {
-  staticKeys: ['staticStyle'],
-  transformNode: transformNode$1,
-  genData: genData$1
-};
-
-var modules$1 = [klass$1, style$1];
-
-/*  */
-
-function text(el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', "_s(" + dir.value + ")");
-  }
-}
-
-/*  */
-
-function html(el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', "_s(" + dir.value + ")");
-  }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
-};
-
-/*  */
-
-var isUnaryTag = makeMap('area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' + 'link,meta,param,source,track,wbr');
-
-// Elements that you can, intentionally, leave open
-// (and which close themselves)
-var canBeLeftOpenTag = makeMap('colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source');
-
-// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-var isNonPhrasingTag = makeMap('address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' + 'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' + 'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' + 'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' + 'title,tr,track');
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-var decoder;
-
-var he = {
-  decode: function decode(html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent;
-  }
-};
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
-// Regular Expressions for parsing tags and attributes
-var singleAttrIdentifier = /([^\s"'<>/=]+)/;
-var singleAttrAssign = /(?:=)/;
-var singleAttrValues = [
-// attr value double quotes
-/"([^"]*)"+/.source,
-// attr value, single quotes
-/'([^']*)'+/.source,
-// attr value, no quotes
-/([^\s"'=<>`]+)/.source];
-var attribute = new RegExp('^\\s*' + singleAttrIdentifier.source + '(?:\\s*(' + singleAttrAssign.source + ')' + '\\s*(?:' + singleAttrValues.join('|') + '))?');
-
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
-var startTagOpen = new RegExp('^<' + qnameCapture);
-var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
-var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
-var conditionalComment = /^<!\[/;
-
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
-// Special Elements (can contain anything)
-var isPlainTextElement = makeMap('script,style,textarea', true);
-var reCache = {};
-
-var decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n'
-};
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
-
-// #5992
-var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-var shouldIgnoreFirstNewline = function (tag, html) {
-  return tag && isIgnoreNewlineTag(tag) && html[0] === '\n';
-};
-
-function decodeAttr(value, shouldDecodeNewlines) {
-  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, function (match) {
-    return decodingMap[match];
-  });
-}
-
-function parseHTML(html, options) {
-  var stack = [];
-  var expectHTML = options.expectHTML;
-  var isUnaryTag$$1 = options.isUnaryTag || no;
-  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  var index = 0;
-  var last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      var textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          var commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
-            }
-            advance(commentEnd + 3);
-            continue;
-          }
-        }
-
-        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-        if (conditionalComment.test(html)) {
-          var conditionalEnd = html.indexOf(']>');
-
-          if (conditionalEnd >= 0) {
-            advance(conditionalEnd + 2);
-            continue;
-          }
-        }
-
-        // Doctype:
-        var doctypeMatch = html.match(doctype);
-        if (doctypeMatch) {
-          advance(doctypeMatch[0].length);
-          continue;
-        }
-
-        // End tag:
-        var endTagMatch = html.match(endTag);
-        if (endTagMatch) {
-          var curIndex = index;
-          advance(endTagMatch[0].length);
-          parseEndTag(endTagMatch[1], curIndex, index);
-          continue;
-        }
-
-        // Start tag:
-        var startTagMatch = parseStartTag();
-        if (startTagMatch) {
-          handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
-            advance(1);
-          }
-          continue;
-        }
-      }
-
-      var text = void 0,
-          rest = void 0,
-          next = void 0;
-      if (textEnd >= 0) {
-        rest = html.slice(textEnd);
-        while (!endTag.test(rest) && !startTagOpen.test(rest) && !comment.test(rest) && !conditionalComment.test(rest)) {
-          // < in plain text, be forgiving and treat it as text
-          next = rest.indexOf('<', 1);
-          if (next < 0) {
-            break;
-          }
-          textEnd += next;
-          rest = html.slice(textEnd);
-        }
-        text = html.substring(0, textEnd);
-        advance(textEnd);
-      }
-
-      if (textEnd < 0) {
-        text = html;
-        html = '';
-      }
-
-      if (options.chars && text) {
-        options.chars(text);
-      }
-    } else {
-      var endTagLength = 0;
-      var stackedTag = lastTag.toLowerCase();
-      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
-        endTagLength = endTag.length;
-        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-          text = text.replace(/<!--([\s\S]*?)-->/g, '$1').replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-        }
-        if (shouldIgnoreFirstNewline(stackedTag, text)) {
-          text = text.slice(1);
-        }
-        if (options.chars) {
-          options.chars(text);
-        }
-        return '';
-      });
-      index += html.length - rest$1.length;
-      html = rest$1;
-      parseEndTag(stackedTag, index - endTagLength, index);
-    }
-
-    if (html === last) {
-      options.chars && options.chars(html);
-      if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
-        options.warn("Mal-formatted tag at end of template: \"" + html + "\"");
-      }
-      break;
-    }
-  }
-
-  // Clean up any remaining tags
-  parseEndTag();
-
-  function advance(n) {
-    index += n;
-    html = html.substring(n);
-  }
-
-  function parseStartTag() {
-    var start = html.match(startTagOpen);
-    if (start) {
-      var match = {
-        tagName: start[1],
-        attrs: [],
-        start: index
-      };
-      advance(start[0].length);
-      var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
-        advance(attr[0].length);
-        match.attrs.push(attr);
-      }
-      if (end) {
-        match.unarySlash = end[1];
-        advance(end[0].length);
-        match.end = index;
-        return match;
-      }
-    }
-  }
-
-  function handleStartTag(match) {
-    var tagName = match.tagName;
-    var unarySlash = match.unarySlash;
-
-    if (expectHTML) {
-      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-        parseEndTag(lastTag);
-      }
-      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-        parseEndTag(tagName);
-      }
-    }
-
-    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
-
-    var l = match.attrs.length;
-    var attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') {
-          delete args[3];
-        }
-        if (args[4] === '') {
-          delete args[4];
-        }
-        if (args[5] === '') {
-          delete args[5];
-        }
-      }
-      var value = args[3] || args[4] || args[5] || '';
-      attrs[i] = {
-        name: args[1],
-        value: decodeAttr(value, options.shouldDecodeNewlines)
-      };
-    }
-
-    if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
-      lastTag = tagName;
-    }
-
-    if (options.start) {
-      options.start(tagName, attrs, unary, match.start, match.end);
-    }
-  }
-
-  function parseEndTag(tagName, start, end) {
-    var pos, lowerCasedTagName;
-    if (start == null) {
-      start = index;
-    }
-    if (end == null) {
-      end = index;
-    }
-
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
-    // Find the closest opened tag of the same type
-    if (tagName) {
-      for (pos = stack.length - 1; pos >= 0; pos--) {
-        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-          break;
-        }
-      }
-    } else {
-      // If no tag name is provided, clean shop
-      pos = 0;
-    }
-
-    if (pos >= 0) {
-      // Close all the open elements, up the stack
-      for (var i = stack.length - 1; i >= pos; i--) {
-        if (process.env.NODE_ENV !== 'production' && (i > pos || !tagName) && options.warn) {
-          options.warn("tag <" + stack[i].tag + "> has no matching end tag.");
-        }
-        if (options.end) {
-          options.end(stack[i].tag, start, end);
-        }
-      }
-
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
-      }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
-      }
-      if (options.end) {
-        options.end(tagName, start, end);
-      }
-    }
-  }
-}
-
-/*  */
-
-var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
-
-var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
-
-var decodeHTMLCached = cached(he.decode);
-
-// configurable state
-var warn$2;
-var delimiters;
-var transforms;
-var preTransforms;
-var postTransforms;
-var platformIsPreTag;
-var platformMustUseProp;
-var platformGetTagNamespace;
-
-/**
- * Convert HTML string to AST.
- */
-function parse(template, options) {
-  warn$2 = options.warn || baseWarn;
-
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
-
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-
-  delimiters = options.delimiters;
-
-  var stack = [];
-  var preserveWhitespace = options.preserveWhitespace !== false;
-  var root;
-  var currentParent;
-  var inVPre = false;
-  var inPre = false;
-  var warned = false;
-
-  function warnOnce(msg) {
-    if (!warned) {
-      warned = true;
-      warn$2(msg);
-    }
-  }
-
-  function endPre(element) {
-    // check pre state
-    if (element.pre) {
-      inVPre = false;
-    }
-    if (platformIsPreTag(element.tag)) {
-      inPre = false;
-    }
-  }
-
-  parseHTML(template, {
-    warn: warn$2,
-    expectHTML: options.expectHTML,
-    isUnaryTag: options.isUnaryTag,
-    canBeLeftOpenTag: options.canBeLeftOpenTag,
-    shouldDecodeNewlines: options.shouldDecodeNewlines,
-    shouldKeepComment: options.comments,
-    start: function start(tag, attrs, unary) {
-      // check namespace.
-      // inherit parent ns if there is one
-      var ns = currentParent && currentParent.ns || platformGetTagNamespace(tag);
-
-      // handle IE svg bug
-      /* istanbul ignore if */
-      if (isIE && ns === 'svg') {
-        attrs = guardIESVGBug(attrs);
-      }
-
-      var element = {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      };
-      if (ns) {
-        element.ns = ns;
-      }
-
-      if (isForbiddenTag(element) && !isServerRendering()) {
-        element.forbidden = true;
-        process.env.NODE_ENV !== 'production' && warn$2('Templates should only be responsible for mapping the state to the ' + 'UI. Avoid placing tags with side-effects in your templates, such as ' + "<" + tag + ">" + ', as they will not be parsed.');
-      }
-
-      // apply pre-transforms
-      for (var i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options);
-      }
-
-      if (!inVPre) {
-        processPre(element);
-        if (element.pre) {
-          inVPre = true;
-        }
-      }
-      if (platformIsPreTag(element.tag)) {
-        inPre = true;
-      }
-      if (inVPre) {
-        processRawAttrs(element);
-      } else {
-        processFor(element);
-        processIf(element);
-        processOnce(element);
-        processKey(element);
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length;
-
-        processRef(element);
-        processSlot(element);
-        processComponent(element);
-        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
-          transforms[i$1](element, options);
-        }
-        processAttrs(element);
-      }
-
-      function checkRootConstraints(el) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce("Cannot use <" + el.tag + "> as component root element because it may " + 'contain multiple nodes.');
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce('Cannot use v-for on stateful component root element because ' + 'it renders multiple elements.');
-          }
-        }
-      }
-
-      // tree management
-      if (!root) {
-        root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else if (process.env.NODE_ENV !== 'production') {
-          warnOnce("Component template should contain exactly one root element. " + "If you are using v-if on multiple elements, " + "use v-else-if to chain them instead.");
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) {
-          // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
-        }
-      }
-      if (!unary) {
-        currentParent = element;
-        stack.push(element);
-      } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
-        postTransforms[i$2](element, options);
-      }
-    },
-
-    end: function end() {
-      // remove trailing whitespace
-      var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
-      }
-      // pop stack
-      stack.length -= 1;
-      currentParent = stack[stack.length - 1];
-      endPre(element);
-    },
-
-    chars: function chars(text) {
-      if (!currentParent) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (text === template) {
-            warnOnce('Component template requires a root element, rather than just text.');
-          } else if (text = text.trim()) {
-            warnOnce("text \"" + text + "\" outside root element will be ignored.");
-          }
-        }
-        return;
-      }
-      // IE textarea placeholder bug
-      /* istanbul ignore if */
-      if (isIE && currentParent.tag === 'textarea' && currentParent.attrsMap.placeholder === text) {
-        return;
-      }
-      var children = currentParent.children;
-      text = inPre || text.trim() ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-      // only preserve whitespace if its not right after a starting tag
-      : preserveWhitespace && children.length ? ' ' : '';
-      if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
-          children.push({
-            type: 2,
-            expression: expression,
-            text: text
-          });
-        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
-            type: 3,
-            text: text
-          });
-        }
-      }
-    },
-    comment: function comment(text) {
-      currentParent.children.push({
-        type: 3,
-        text: text,
-        isComment: true
-      });
-    }
-  });
-  return root;
-}
-
-function processPre(el) {
-  if (getAndRemoveAttr(el, 'v-pre') != null) {
-    el.pre = true;
-  }
-}
-
-function processRawAttrs(el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
-      };
-    }
-  } else if (!el.pre) {
-    // non root node in pre blocks with no attributes
-    el.plain = true;
-  }
-}
-
-function processKey(el) {
-  var exp = getBindingAttr(el, 'key');
-  if (exp) {
-    if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
-    }
-    el.key = exp;
-  }
-}
-
-function processRef(el) {
-  var ref = getBindingAttr(el, 'ref');
-  if (ref) {
-    el.ref = ref;
-    el.refInFor = checkInFor(el);
-  }
-}
-
-function processFor(el) {
-  var exp;
-  if (exp = getAndRemoveAttr(el, 'v-for')) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn$2("Invalid v-for expression: " + exp);
-      return;
-    }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
-      }
-    } else {
-      el.alias = alias;
-    }
-  }
-}
-
-function processIf(el) {
-  var exp = getAndRemoveAttr(el, 'v-if');
-  if (exp) {
-    el.if = exp;
-    addIfCondition(el, {
-      exp: exp,
-      block: el
-    });
-  } else {
-    if (getAndRemoveAttr(el, 'v-else') != null) {
-      el.else = true;
-    }
-    var elseif = getAndRemoveAttr(el, 'v-else-if');
-    if (elseif) {
-      el.elseif = elseif;
-    }
-  }
-}
-
-function processIfConditions(el, parent) {
-  var prev = findPrevElement(parent.children);
-  if (prev && prev.if) {
-    addIfCondition(prev, {
-      exp: el.elseif,
-      block: el
-    });
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$2("v-" + (el.elseif ? 'else-if="' + el.elseif + '"' : 'else') + " " + "used on element <" + el.tag + "> without corresponding v-if.");
-  }
-}
-
-function findPrevElement(children) {
-  var i = children.length;
-  while (i--) {
-    if (children[i].type === 1) {
-      return children[i];
-    } else {
-      if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
-        warn$2("text \"" + children[i].text.trim() + "\" between v-if and v-else(-if) " + "will be ignored.");
-      }
-      children.pop();
-    }
-  }
-}
-
-function addIfCondition(el, condition) {
-  if (!el.ifConditions) {
-    el.ifConditions = [];
-  }
-  el.ifConditions.push(condition);
-}
-
-function processOnce(el) {
-  var once$$1 = getAndRemoveAttr(el, 'v-once');
-  if (once$$1 != null) {
-    el.once = true;
-  }
-}
-
-function processSlot(el) {
-  if (el.tag === 'slot') {
-    el.slotName = getBindingAttr(el, 'name');
-    if (process.env.NODE_ENV !== 'production' && el.key) {
-      warn$2("`key` does not work on <slot> because slots are abstract outlets " + "and can possibly expand into multiple elements. " + "Use the key on a wrapping element instead.");
-    }
-  } else {
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope');
-    }
-  }
-}
-
-function processComponent(el) {
-  var binding;
-  if (binding = getBindingAttr(el, 'is')) {
-    el.component = binding;
-  }
-  if (getAndRemoveAttr(el, 'inline-template') != null) {
-    el.inlineTemplate = true;
-  }
-}
-
-function processAttrs(el) {
-  var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
-  for (i = 0, l = list.length; i < l; i++) {
-    name = rawName = list[i].name;
-    value = list[i].value;
-    if (dirRE.test(name)) {
-      // mark element as dynamic
-      el.hasBindings = true;
-      // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
-        name = name.replace(modifierRE, '');
-      }
-      if (bindRE.test(name)) {
-        // v-bind
-        name = name.replace(bindRE, '');
-        value = parseFilters(value);
-        isProp = false;
-        if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
-            name = camelize(name);
-            if (name === 'innerHtml') {
-              name = 'innerHTML';
-            }
-          }
-          if (modifiers.camel) {
-            name = camelize(name);
-          }
-          if (modifiers.sync) {
-            addHandler(el, "update:" + camelize(name), genAssignmentCode(value, "$event"));
-          }
-        }
-        if (isProp || !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-          addProp(el, name, value);
-        } else {
-          addAttr(el, name, value);
-        }
-      } else if (onRE.test(name)) {
-        // v-on
-        name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
-      } else {
-        // normal directives
-        name = name.replace(dirRE, '');
-        // parse arg
-        var argMatch = name.match(argRE);
-        var arg = argMatch && argMatch[1];
-        if (arg) {
-          name = name.slice(0, -(arg.length + 1));
-        }
-        addDirective(el, name, rawName, value, arg, modifiers);
-        if (process.env.NODE_ENV !== 'production' && name === 'model') {
-          checkForAliasModel(el, value);
-        }
-      }
-    } else {
-      // literal attribute
-      if (process.env.NODE_ENV !== 'production') {
-        var expression = parseText(value, delimiters);
-        if (expression) {
-          warn$2(name + "=\"" + value + "\": " + 'Interpolation inside attributes has been removed. ' + 'Use v-bind or the colon shorthand instead. For example, ' + 'instead of <div id="{{ val }}">, use <div :id="val">.');
-        }
-      }
-      addAttr(el, name, JSON.stringify(value));
-    }
-  }
-}
-
-function checkInFor(el) {
-  var parent = el;
-  while (parent) {
-    if (parent.for !== undefined) {
-      return true;
-    }
-    parent = parent.parent;
-  }
-  return false;
-}
-
-function parseModifiers(name) {
-  var match = name.match(modifierRE);
-  if (match) {
-    var ret = {};
-    match.forEach(function (m) {
-      ret[m.slice(1)] = true;
-    });
-    return ret;
-  }
-}
-
-function makeAttrsMap(attrs) {
-  var map = {};
-  for (var i = 0, l = attrs.length; i < l; i++) {
-    if (process.env.NODE_ENV !== 'production' && map[attrs[i].name] && !isIE && !isEdge) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
-    }
-    map[attrs[i].name] = attrs[i].value;
-  }
-  return map;
-}
-
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag(el) {
-  return el.tag === 'script' || el.tag === 'style';
-}
-
-function isForbiddenTag(el) {
-  return el.tag === 'style' || el.tag === 'script' && (!el.attrsMap.type || el.attrsMap.type === 'text/javascript');
-}
-
-var ieNSBug = /^xmlns:NS\d+/;
-var ieNSPrefix = /^NS\d+:/;
-
-/* istanbul ignore next */
-function guardIESVGBug(attrs) {
-  var res = [];
-  for (var i = 0; i < attrs.length; i++) {
-    var attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
-    }
-  }
-  return res;
-}
-
-function checkForAliasModel(el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$2("<" + el.tag + " v-model=\"" + value + "\">: " + "You are binding v-model directly to a v-for iteration alias. " + "This will not be able to modify the v-for source array because " + "writing to the alias is like modifying a function local variable. " + "Consider using an array of objects and use v-model on an object property instead.");
-    }
-    _el = _el.parent;
-  }
-}
-
-/*  */
-
-var isStaticKey;
-var isPlatformReservedTag;
-
-var genStaticKeysCached = cached(genStaticKeys$1);
-
-/**
- * Goal of the optimizer: walk the generated template AST tree
- * and detect sub-trees that are purely static, i.e. parts of
- * the DOM that never needs to change.
- *
- * Once we detect these sub-trees, we can:
- *
- * 1. Hoist them into constants, so that we no longer need to
- *    create fresh nodes for them on each re-render;
- * 2. Completely skip them in the patching process.
- */
-function optimize(root, options) {
-  if (!root) {
-    return;
-  }
-  isStaticKey = genStaticKeysCached(options.staticKeys || '');
-  isPlatformReservedTag = options.isReservedTag || no;
-  // first pass: mark all non-static nodes.
-  markStatic$1(root);
-  // second pass: mark static roots.
-  markStaticRoots(root, false);
-}
-
-function genStaticKeys$1(keys) {
-  return makeMap('type,tag,attrsList,attrsMap,plain,parent,children,attrs' + (keys ? ',' + keys : ''));
-}
-
-function markStatic$1(node) {
-  node.static = isStatic(node);
-  if (node.type === 1) {
-    // do not make component slot content static. this avoids
-    // 1. components not able to mutate slot nodes
-    // 2. static slot content fails for hot-reloading
-    if (!isPlatformReservedTag(node.tag) && node.tag !== 'slot' && node.attrsMap['inline-template'] == null) {
-      return;
-    }
-    for (var i = 0, l = node.children.length; i < l; i++) {
-      var child = node.children[i];
-      markStatic$1(child);
-      if (!child.static) {
-        node.static = false;
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        var block = node.ifConditions[i$1].block;
-        markStatic$1(block);
-        if (!block.static) {
-          node.static = false;
-        }
-      }
-    }
-  }
-}
-
-function markStaticRoots(node, isInFor) {
-  if (node.type === 1) {
-    if (node.static || node.once) {
-      node.staticInFor = isInFor;
-    }
-    // For a node to qualify as a static root, it should have children that
-    // are not just static text. Otherwise the cost of hoisting out will
-    // outweigh the benefits and it's better off to just always render it fresh.
-    if (node.static && node.children.length && !(node.children.length === 1 && node.children[0].type === 3)) {
-      node.staticRoot = true;
-      return;
-    } else {
-      node.staticRoot = false;
-    }
-    if (node.children) {
-      for (var i = 0, l = node.children.length; i < l; i++) {
-        markStaticRoots(node.children[i], isInFor || !!node.for);
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        markStaticRoots(node.ifConditions[i$1].block, isInFor);
-      }
-    }
-  }
-}
-
-function isStatic(node) {
-  if (node.type === 2) {
-    // expression
-    return false;
-  }
-  if (node.type === 3) {
-    // text
-    return true;
-  }
-  return !!(node.pre || !node.hasBindings && // no dynamic bindings
-  !node.if && !node.for && // not v-if or v-for or v-else
-  !isBuiltInTag(node.tag) && // not a built-in
-  isPlatformReservedTag(node.tag) && // not a component
-  !isDirectChildOfTemplateFor(node) && Object.keys(node).every(isStaticKey));
-}
-
-function isDirectChildOfTemplateFor(node) {
-  while (node.parent) {
-    node = node.parent;
-    if (node.tag !== 'template') {
-      return false;
-    }
-    if (node.for) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/*  */
-
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
-
-// keyCode aliases
-var keyCodes = {
-  esc: 27,
-  tab: 9,
-  enter: 13,
-  space: 32,
-  up: 38,
-  left: 37,
-  right: 39,
-  down: 40,
-  'delete': [8, 46]
-};
-
-// #4868: modifiers that prevent the execution of the listener
-// need to explicitly return null so that we can determine whether to remove
-// the listener for .once
-var genGuard = function (condition) {
-  return "if(" + condition + ")return null;";
-};
-
-var modifierCode = {
-  stop: '$event.stopPropagation();',
-  prevent: '$event.preventDefault();',
-  self: genGuard("$event.target !== $event.currentTarget"),
-  ctrl: genGuard("!$event.ctrlKey"),
-  shift: genGuard("!$event.shiftKey"),
-  alt: genGuard("!$event.altKey"),
-  meta: genGuard("!$event.metaKey"),
-  left: genGuard("'button' in $event && $event.button !== 0"),
-  middle: genGuard("'button' in $event && $event.button !== 1"),
-  right: genGuard("'button' in $event && $event.button !== 2")
-};
-
-function genHandlers(events, isNative, warn) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
-  for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if (process.env.NODE_ENV !== 'production' && name === 'click' && handler && handler.modifiers && handler.modifiers.right) {
-      warn("Use \"contextmenu\" instead of \"click.right\" since right clicks " + "do not actually fire \"click\" events.");
-    }
-    res += "\"" + name + "\":" + genHandler(name, handler) + ",";
-  }
-  return res.slice(0, -1) + '}';
-}
-
-function genHandler(name, handler) {
-  if (!handler) {
-    return 'function(){}';
-  }
-
-  if (Array.isArray(handler)) {
-    return "[" + handler.map(function (handler) {
-      return genHandler(name, handler);
-    }).join(',') + "]";
-  }
-
-  var isMethodPath = simplePathRE.test(handler.value);
-  var isFunctionExpression = fnExpRE.test(handler.value);
-
-  if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression ? handler.value : "function($event){" + handler.value + "}"; // inline statement
-  } else {
-    var code = '';
-    var genModifierCode = '';
-    var keys = [];
-    for (var key in handler.modifiers) {
-      if (modifierCode[key]) {
-        genModifierCode += modifierCode[key];
-        // left/right
-        if (keyCodes[key]) {
-          keys.push(key);
-        }
-      } else {
-        keys.push(key);
-      }
-    }
-    if (keys.length) {
-      code += genKeyFilter(keys);
-    }
-    // Make sure modifiers like prevent and stop get executed after key filtering
-    if (genModifierCode) {
-      code += genModifierCode;
-    }
-    var handlerCode = isMethodPath ? handler.value + '($event)' : isFunctionExpression ? "(" + handler.value + ")($event)" : handler.value;
-    return "function($event){" + code + handlerCode + "}";
-  }
-}
-
-function genKeyFilter(keys) {
-  return "if(!('button' in $event)&&" + keys.map(genFilterCode).join('&&') + ")return null;";
-}
-
-function genFilterCode(key) {
-  var keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return "$event.keyCode!==" + keyVal;
-  }
-  var alias = keyCodes[key];
-  return "_k($event.keyCode," + JSON.stringify(key) + (alias ? ',' + JSON.stringify(alias) : '') + ")";
-}
-
-/*  */
-
-function on(el, dir) {
-  if (process.env.NODE_ENV !== 'production' && dir.modifiers) {
-    warn("v-on without argument does not support modifiers.");
-  }
-  el.wrapListeners = function (code) {
-    return "_g(" + code + "," + dir.value + ")";
-  };
-}
-
-/*  */
-
-function bind$1(el, dir) {
-  el.wrapData = function (code) {
-    return "_b(" + code + ",'" + el.tag + "'," + dir.value + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")";
-  };
-}
-
-/*  */
-
-var baseDirectives = {
-  on: on,
-  bind: bind$1,
-  cloak: noop
-};
-
-/*  */
-
-var CodegenState = function CodegenState(options) {
-  this.options = options;
-  this.warn = options.warn || baseWarn;
-  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-  this.directives = extend(extend({}, baseDirectives), options.directives);
-  var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) {
-    return !isReservedTag(el.tag);
-  };
-  this.onceId = 0;
-  this.staticRenderFns = [];
-};
-
-function generate(ast, options) {
-  var state = new CodegenState(options);
-  var code = ast ? genElement(ast, state) : '_c("div")';
-  return {
-    render: "with(this){return " + code + "}",
-    staticRenderFns: state.staticRenderFns
-  };
-}
-
-function genElement(el, state) {
-  if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el, state);
-  } else if (el.once && !el.onceProcessed) {
-    return genOnce(el, state);
-  } else if (el.for && !el.forProcessed) {
-    return genFor(el, state);
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state);
-  } else if (el.tag === 'template' && !el.slotTarget) {
-    return genChildren(el, state) || 'void 0';
-  } else if (el.tag === 'slot') {
-    return genSlot(el, state);
-  } else {
-    // component or element
-    var code;
-    if (el.component) {
-      code = genComponent(el.component, el, state);
-    } else {
-      var data = el.plain ? undefined : genData$2(el, state);
-
-      var children = el.inlineTemplate ? null : genChildren(el, state, true);
-      code = "_c('" + el.tag + "'" + (data ? "," + data : '') + (children ? "," + children : '') + ")";
-    }
-    // module transforms
-    for (var i = 0; i < state.transforms.length; i++) {
-      code = state.transforms[i](el, code);
-    }
-    return code;
-  }
-}
-
-// hoist static sub-trees out
-function genStatic(el, state) {
-  el.staticProcessed = true;
-  state.staticRenderFns.push("with(this){return " + genElement(el, state) + "}");
-  return "_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")";
-}
-
-// v-once
-function genOnce(el, state) {
-  el.onceProcessed = true;
-  if (el.if && !el.ifProcessed) {
-    return genIf(el, state);
-  } else if (el.staticInFor) {
-    var key = '';
-    var parent = el.parent;
-    while (parent) {
-      if (parent.for) {
-        key = parent.key;
-        break;
-      }
-      parent = parent.parent;
-    }
-    if (!key) {
-      process.env.NODE_ENV !== 'production' && state.warn("v-once can only be used inside v-for that is keyed. ");
-      return genElement(el, state);
-    }
-    return "_o(" + genElement(el, state) + "," + state.onceId++ + (key ? "," + key : "") + ")";
-  } else {
-    return genStatic(el, state);
-  }
-}
-
-function genIf(el, state, altGen, altEmpty) {
-  el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty);
-}
-
-function genIfConditions(conditions, state, altGen, altEmpty) {
-  if (!conditions.length) {
-    return altEmpty || '_e()';
-  }
-
-  var condition = conditions.shift();
-  if (condition.exp) {
-    return "(" + condition.exp + ")?" + genTernaryExp(condition.block) + ":" + genIfConditions(conditions, state, altGen, altEmpty);
-  } else {
-    return "" + genTernaryExp(condition.block);
-  }
-
-  // v-if with v-once should generate code like (a)?_m(0):_m(1)
-  function genTernaryExp(el) {
-    return altGen ? altGen(el, state) : el.once ? genOnce(el, state) : genElement(el, state);
-  }
-}
-
-function genFor(el, state, altGen, altHelper) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? "," + el.iterator1 : '';
-  var iterator2 = el.iterator2 ? "," + el.iterator2 : '';
-
-  if (process.env.NODE_ENV !== 'production' && state.maybeComponent(el) && el.tag !== 'slot' && el.tag !== 'template' && !el.key) {
-    state.warn("<" + el.tag + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " + "v-for should have explicit keys. " + "See https://vuejs.org/guide/list.html#key for more info.", true /* tip */
-    );
-  }
-
-  el.forProcessed = true; // avoid recursion
-  return (altHelper || '_l') + "((" + exp + ")," + "function(" + alias + iterator1 + iterator2 + "){" + "return " + (altGen || genElement)(el, state) + '})';
-}
-
-function genData$2(el, state) {
-  var data = '{';
-
-  // directives first.
-  // directives may mutate the el's other properties before they are generated.
-  var dirs = genDirectives(el, state);
-  if (dirs) {
-    data += dirs + ',';
-  }
-
-  // key
-  if (el.key) {
-    data += "key:" + el.key + ",";
-  }
-  // ref
-  if (el.ref) {
-    data += "ref:" + el.ref + ",";
-  }
-  if (el.refInFor) {
-    data += "refInFor:true,";
-  }
-  // pre
-  if (el.pre) {
-    data += "pre:true,";
-  }
-  // record original tag name for components using "is" attribute
-  if (el.component) {
-    data += "tag:\"" + el.tag + "\",";
-  }
-  // module data generation functions
-  for (var i = 0; i < state.dataGenFns.length; i++) {
-    data += state.dataGenFns[i](el);
-  }
-  // attributes
-  if (el.attrs) {
-    data += "attrs:{" + genProps(el.attrs) + "},";
-  }
-  // DOM props
-  if (el.props) {
-    data += "domProps:{" + genProps(el.props) + "},";
-  }
-  // event handlers
-  if (el.events) {
-    data += genHandlers(el.events, false, state.warn) + ",";
-  }
-  if (el.nativeEvents) {
-    data += genHandlers(el.nativeEvents, true, state.warn) + ",";
-  }
-  // slot target
-  if (el.slotTarget) {
-    data += "slot:" + el.slotTarget + ",";
-  }
-  // scoped slots
-  if (el.scopedSlots) {
-    data += genScopedSlots(el.scopedSlots, state) + ",";
-  }
-  // component v-model
-  if (el.model) {
-    data += "model:{value:" + el.model.value + ",callback:" + el.model.callback + ",expression:" + el.model.expression + "},";
-  }
-  // inline-template
-  if (el.inlineTemplate) {
-    var inlineTemplate = genInlineTemplate(el, state);
-    if (inlineTemplate) {
-      data += inlineTemplate + ",";
-    }
-  }
-  data = data.replace(/,$/, '') + '}';
-  // v-bind data wrap
-  if (el.wrapData) {
-    data = el.wrapData(data);
-  }
-  // v-on data wrap
-  if (el.wrapListeners) {
-    data = el.wrapListeners(data);
-  }
-  return data;
-}
-
-function genDirectives(el, state) {
-  var dirs = el.directives;
-  if (!dirs) {
-    return;
-  }
-  var res = 'directives:[';
-  var hasRuntime = false;
-  var i, l, dir, needRuntime;
-  for (i = 0, l = dirs.length; i < l; i++) {
-    dir = dirs[i];
-    needRuntime = true;
-    var gen = state.directives[dir.name];
-    if (gen) {
-      // compile-time directive that manipulates AST.
-      // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, state.warn);
-    }
-    if (needRuntime) {
-      hasRuntime = true;
-      res += "{name:\"" + dir.name + "\",rawName:\"" + dir.rawName + "\"" + (dir.value ? ",value:(" + dir.value + "),expression:" + JSON.stringify(dir.value) : '') + (dir.arg ? ",arg:\"" + dir.arg + "\"" : '') + (dir.modifiers ? ",modifiers:" + JSON.stringify(dir.modifiers) : '') + "},";
-    }
-  }
-  if (hasRuntime) {
-    return res.slice(0, -1) + ']';
-  }
-}
-
-function genInlineTemplate(el, state) {
-  var ast = el.children[0];
-  if (process.env.NODE_ENV !== 'production' && (el.children.length > 1 || ast.type !== 1)) {
-    state.warn('Inline-template components must have exactly one child element.');
-  }
-  if (ast.type === 1) {
-    var inlineRenderFns = generate(ast, state.options);
-    return "inlineTemplate:{render:function(){" + inlineRenderFns.render + "},staticRenderFns:[" + inlineRenderFns.staticRenderFns.map(function (code) {
-      return "function(){" + code + "}";
-    }).join(',') + "]}";
-  }
-}
-
-function genScopedSlots(slots, state) {
-  return "scopedSlots:_u([" + Object.keys(slots).map(function (key) {
-    return genScopedSlot(key, slots[key], state);
-  }).join(',') + "])";
-}
-
-function genScopedSlot(key, el, state) {
-  if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state);
-  }
-  return "{key:" + key + ",fn:function(" + String(el.attrsMap.scope) + "){" + "return " + (el.tag === 'template' ? genChildren(el, state) || 'void 0' : genElement(el, state)) + "}}";
-}
-
-function genForScopedSlot(key, el, state) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? "," + el.iterator1 : '';
-  var iterator2 = el.iterator2 ? "," + el.iterator2 : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," + "function(" + alias + iterator1 + iterator2 + "){" + "return " + genScopedSlot(key, el, state) + '})';
-}
-
-function genChildren(el, state, checkSkip, altGenElement, altGenNode) {
-  var children = el.children;
-  if (children.length) {
-    var el$1 = children[0];
-    // optimize single v-for
-    if (children.length === 1 && el$1.for && el$1.tag !== 'template' && el$1.tag !== 'slot') {
-      return (altGenElement || genElement)(el$1, state);
-    }
-    var normalizationType = checkSkip ? getNormalizationType(children, state.maybeComponent) : 0;
-    var gen = altGenNode || genNode;
-    return "[" + children.map(function (c) {
-      return gen(c, state);
-    }).join(',') + "]" + (normalizationType ? "," + normalizationType : '');
-  }
-}
-
-// determine the normalization needed for the children array.
-// 0: no normalization needed
-// 1: simple normalization needed (possible 1-level deep nested array)
-// 2: full normalization needed
-function getNormalizationType(children, maybeComponent) {
-  var res = 0;
-  for (var i = 0; i < children.length; i++) {
-    var el = children[i];
-    if (el.type !== 1) {
-      continue;
-    }
-    if (needsNormalization(el) || el.ifConditions && el.ifConditions.some(function (c) {
-      return needsNormalization(c.block);
-    })) {
-      res = 2;
-      break;
-    }
-    if (maybeComponent(el) || el.ifConditions && el.ifConditions.some(function (c) {
-      return maybeComponent(c.block);
-    })) {
-      res = 1;
-    }
-  }
-  return res;
-}
-
-function needsNormalization(el) {
-  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot';
-}
-
-function genNode(node, state) {
-  if (node.type === 1) {
-    return genElement(node, state);
-  }if (node.type === 3 && node.isComment) {
-    return genComment(node);
-  } else {
-    return genText(node);
-  }
-}
-
-function genText(text) {
-  return "_v(" + (text.type === 2 ? text.expression // no need for () because already wrapped in _s()
-  : transformSpecialNewlines(JSON.stringify(text.text))) + ")";
-}
-
-function genComment(comment) {
-  return "_e(" + JSON.stringify(comment.text) + ")";
-}
-
-function genSlot(el, state) {
-  var slotName = el.slotName || '"default"';
-  var children = genChildren(el, state);
-  var res = "_t(" + slotName + (children ? "," + children : '');
-  var attrs = el.attrs && "{" + el.attrs.map(function (a) {
-    return camelize(a.name) + ":" + a.value;
-  }).join(',') + "}";
-  var bind$$1 = el.attrsMap['v-bind'];
-  if ((attrs || bind$$1) && !children) {
-    res += ",null";
-  }
-  if (attrs) {
-    res += "," + attrs;
-  }
-  if (bind$$1) {
-    res += (attrs ? '' : ',null') + "," + bind$$1;
-  }
-  return res + ')';
-}
-
-// componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent(componentName, el, state) {
-  var children = el.inlineTemplate ? null : genChildren(el, state, true);
-  return "_c(" + componentName + "," + genData$2(el, state) + (children ? "," + children : '') + ")";
-}
-
-function genProps(props) {
-  var res = '';
-  for (var i = 0; i < props.length; i++) {
-    var prop = props[i];
-    res += "\"" + prop.name + "\":" + transformSpecialNewlines(prop.value) + ",";
-  }
-  return res.slice(0, -1);
-}
-
-// #3895, #4268
-function transformSpecialNewlines(text) {
-  return text.replace(/\u2028/g, '\\u2028').replace(/\u2029/g, '\\u2029');
-}
-
-/*  */
-
-// these keywords should not appear inside expressions, but operators like
-// typeof, instanceof and in are allowed
-var prohibitedKeywordRE = new RegExp('\\b' + ('do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' + 'super,throw,while,yield,delete,export,import,return,switch,default,' + 'extends,finally,continue,debugger,function,arguments').split(',').join('\\b|\\b') + '\\b');
-
-// these unary operators should not be used as property/method names
-var unaryOperatorsRE = new RegExp('\\b' + 'delete,typeof,void'.split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
-
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
-// strip strings in expressions
-var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
-
-// detect problematic expressions in a template
-function detectErrors(ast) {
-  var errors = [];
-  if (ast) {
-    checkNode(ast, errors);
-  }
-  return errors;
-}
-
-function checkNode(node, errors) {
-  if (node.type === 1) {
-    for (var name in node.attrsMap) {
-      if (dirRE.test(name)) {
-        var value = node.attrsMap[name];
-        if (value) {
-          if (name === 'v-for') {
-            checkFor(node, "v-for=\"" + value + "\"", errors);
-          } else if (onRE.test(name)) {
-            checkEvent(value, name + "=\"" + value + "\"", errors);
-          } else {
-            checkExpression(value, name + "=\"" + value + "\"", errors);
-          }
-        }
-      }
-    }
-    if (node.children) {
-      for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
-      }
-    }
-  } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
-  }
-}
-
-function checkEvent(exp, text, errors) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push("avoid using JavaScript unary operator as property name: " + "\"" + keywordMatch[0] + "\" in expression " + text.trim());
-  }
-  checkExpression(exp, text, errors);
-}
-
-function checkFor(node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
-}
-
-function checkIdentifier(ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push("invalid " + type + " \"" + ident + "\" in expression: " + text.trim());
-  }
-}
-
-function checkExpression(exp, text, errors) {
-  try {
-    new Function("return " + exp);
-  } catch (e) {
-    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-    if (keywordMatch) {
-      errors.push("avoid using JavaScript keyword as property name: " + "\"" + keywordMatch[0] + "\" in expression " + text.trim());
-    } else {
-      errors.push("invalid expression: " + text.trim());
-    }
-  }
-}
-
-/*  */
-
-function createFunction(code, errors) {
-  try {
-    return new Function(code);
-  } catch (err) {
-    errors.push({ err: err, code: code });
-    return noop;
-  }
-}
-
-function createCompileToFunctionFn(compile) {
-  var cache = Object.create(null);
-
-  return function compileToFunctions(template, options, vm) {
-    options = options || {};
-
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      // detect possible CSP restriction
-      try {
-        new Function('return 1');
-      } catch (e) {
-        if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn('It seems you are using the standalone build of Vue.js in an ' + 'environment with Content Security Policy that prohibits unsafe-eval. ' + 'The template compiler cannot work in this environment. Consider ' + 'relaxing the policy to allow unsafe-eval or pre-compiling your ' + 'templates into render functions.');
-        }
-      }
-    }
-
-    // check cache
-    var key = options.delimiters ? String(options.delimiters) + template : template;
-    if (cache[key]) {
-      return cache[key];
-    }
-
-    // compile
-    var compiled = compile(template, options);
-
-    // check compilation errors/tips
-    if (process.env.NODE_ENV !== 'production') {
-      if (compiled.errors && compiled.errors.length) {
-        warn("Error compiling template:\n\n" + template + "\n\n" + compiled.errors.map(function (e) {
-          return "- " + e;
-        }).join('\n') + '\n', vm);
-      }
-      if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) {
-          return tip(msg, vm);
-        });
-      }
-    }
-
-    // turn code into functions
-    var res = {};
-    var fnGenErrors = [];
-    res.render = createFunction(compiled.render, fnGenErrors);
-    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
-      return createFunction(code, fnGenErrors);
-    });
-
-    // check function generation errors.
-    // this should only happen if there is a bug in the compiler itself.
-    // mostly for codegen development use
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn("Failed to generate render function:\n\n" + fnGenErrors.map(function (ref) {
-          var err = ref.err;
-          var code = ref.code;
-
-          return err.toString() + " in\n\n" + code + "\n";
-        }).join('\n'), vm);
-      }
-    }
-
-    return cache[key] = res;
-  };
-}
-
-/*  */
-
-function createCompilerCreator(baseCompile) {
-  return function createCompiler(baseOptions) {
-    function compile(template, options) {
-      var finalOptions = Object.create(baseOptions);
-      var errors = [];
-      var tips = [];
-      finalOptions.warn = function (msg, tip) {
-        (tip ? tips : errors).push(msg);
-      };
-
-      if (options) {
-        // merge custom modules
-        if (options.modules) {
-          finalOptions.modules = (baseOptions.modules || []).concat(options.modules);
-        }
-        // merge custom directives
-        if (options.directives) {
-          finalOptions.directives = extend(Object.create(baseOptions.directives), options.directives);
-        }
-        // copy other options
-        for (var key in options) {
-          if (key !== 'modules' && key !== 'directives') {
-            finalOptions[key] = options[key];
-          }
-        }
-      }
-
-      var compiled = baseCompile(template, finalOptions);
-      if (process.env.NODE_ENV !== 'production') {
-        errors.push.apply(errors, detectErrors(compiled.ast));
-      }
-      compiled.errors = errors;
-      compiled.tips = tips;
-      return compiled;
-    }
-
-    return {
-      compile: compile,
-      compileToFunctions: createCompileToFunctionFn(compile)
-    };
-  };
-}
-
-/*  */
-
-// `createCompilerCreator` allows creating compilers that use alternative
-// parser/optimizer/codegen, e.g the SSR optimizing compiler.
-// Here we just export a default compiler using the default parts.
-var createCompiler = createCompilerCreator(function baseCompile(template, options) {
-  var ast = parse(template.trim(), options);
-  optimize(ast, options);
-  var code = generate(ast, options);
-  return {
-    ast: ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
-  };
-});
-
-/*  */
-
-var ref$1 = createCompiler(baseOptions);
-var compileToFunctions = ref$1.compileToFunctions;
-
-/*  */
-
-var idToTemplate = cached(function (id) {
-  var el = query(id);
-  return el && el.innerHTML;
-});
-
-var mount = Vue$3.prototype.$mount;
-Vue$3.prototype.$mount = function (el, hydrating) {
-  el = el && query(el);
-
-  /* istanbul ignore if */
-  if (el === document.body || el === document.documentElement) {
-    process.env.NODE_ENV !== 'production' && warn("Do not mount Vue to <html> or <body> - mount to normal elements instead.");
-    return this;
-  }
-
-  var options = this.$options;
-  // resolve template/el and convert to render function
-  if (!options.render) {
-    var template = options.template;
-    if (template) {
-      if (typeof template === 'string') {
-        if (template.charAt(0) === '#') {
-          template = idToTemplate(template);
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !template) {
-            warn("Template element not found or is empty: " + options.template, this);
-          }
-        }
-      } else if (template.nodeType) {
-        template = template.innerHTML;
-      } else {
-        if (process.env.NODE_ENV !== 'production') {
-          warn('invalid template option:' + template, this);
-        }
-        return this;
-      }
-    } else if (el) {
-      template = getOuterHTML(el);
-    }
-    if (template) {
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-        mark('compile');
-      }
-
-      var ref = compileToFunctions(template, {
-        shouldDecodeNewlines: shouldDecodeNewlines,
-        delimiters: options.delimiters,
-        comments: options.comments
-      }, this);
-      var render = ref.render;
-      var staticRenderFns = ref.staticRenderFns;
-      options.render = render;
-      options.staticRenderFns = staticRenderFns;
-
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-        mark('compile end');
-        measure(this._name + " compile", 'compile', 'compile end');
-      }
-    }
-  }
-  return mount.call(this, el, hydrating);
-};
-
-/**
- * Get outerHTML of elements, taking care
- * of SVG elements in IE as well.
- */
-function getOuterHTML(el) {
-  if (el.outerHTML) {
-    return el.outerHTML;
-  } else {
-    var container = document.createElement('div');
-    container.appendChild(el.cloneNode(true));
-    return container.innerHTML;
-  }
-}
-
-Vue$3.compile = compileToFunctions;
-
-/* harmony default export */ __webpack_exports__["a"] = (Vue$3);
-/* WEBPACK VAR INJECTION */}.call(__webpack_exports__, __webpack_require__(3), __webpack_require__(4)))
-
-/***/ }),
-/* 1 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-
-const internals = {
-  kSocketLocation: 'ws://localhost:1987',
-
-  data: {
-    state: 0,
-    runningAverages: {},
-    winner: null
-  },
-
-  initSocket() {
-
-    internals.socket = new WebSocket(internals.kSocketLocation);
-    internals.socket.addEventListener('message', data => {
-
-      Object.assign(internals.data, JSON.parse(data.data));
-    });
-  }
-};
-
-/* harmony default export */ __webpack_exports__["a"] = ({
-  data() {
-
-    if (!internals.socket) {
-      internals.initSocket();
-    }
-
-    return internals.data;
-  }
-});
-
-/***/ }),
-/* 2 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_vue__ = __webpack_require__(0);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__components_wave_renderer__ = __webpack_require__(5);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__components_status__ = __webpack_require__(6);
-
-
-
-
-
-/* global window */
-
-const internals = {};
-
-internals.SortingHat = {
-
-  start() {
-
-    this.vm = new __WEBPACK_IMPORTED_MODULE_0_vue__["a" /* default */]({
-      el: '#sorting-hat',
-      components: {
-        waveRenderer: __WEBPACK_IMPORTED_MODULE_1__components_wave_renderer__["a" /* default */],
-        status: __WEBPACK_IMPORTED_MODULE_2__components_status__["a" /* default */]
-      }
-    });
-  }
-};
-
-internals.run = function () {
-
-  internals.SortingHat.start();
-};
-
-window.addEventListener('load', internals.run);
-
-/***/ }),
-/* 3 */
-/***/ (function(module, exports) {
-
-// shim for using process in browser
-var process = module.exports = {};
-
-// cached from whatever global is present so that test runners that stub it
-// don't break things.  But we need to wrap it in a try catch in case it is
-// wrapped in strict mode code which doesn't define any globals.  It's inside a
-// function because try/catches deoptimize in certain engines.
-
-var cachedSetTimeout;
-var cachedClearTimeout;
-
-function defaultSetTimout() {
-    throw new Error('setTimeout has not been defined');
-}
-function defaultClearTimeout() {
-    throw new Error('clearTimeout has not been defined');
-}
-(function () {
-    try {
-        if (typeof setTimeout === 'function') {
-            cachedSetTimeout = setTimeout;
-        } else {
-            cachedSetTimeout = defaultSetTimout;
-        }
-    } catch (e) {
-        cachedSetTimeout = defaultSetTimout;
-    }
-    try {
-        if (typeof clearTimeout === 'function') {
-            cachedClearTimeout = clearTimeout;
-        } else {
-            cachedClearTimeout = defaultClearTimeout;
-        }
-    } catch (e) {
-        cachedClearTimeout = defaultClearTimeout;
-    }
-})();
-function runTimeout(fun) {
-    if (cachedSetTimeout === setTimeout) {
-        //normal enviroments in sane situations
-        return setTimeout(fun, 0);
-    }
-    // if setTimeout wasn't available but was latter defined
-    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
-        cachedSetTimeout = setTimeout;
-        return setTimeout(fun, 0);
-    }
-    try {
-        // when when somebody has screwed with setTimeout but no I.E. maddness
-        return cachedSetTimeout(fun, 0);
-    } catch (e) {
-        try {
-            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
-            return cachedSetTimeout.call(null, fun, 0);
-        } catch (e) {
-            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
-            return cachedSetTimeout.call(this, fun, 0);
-        }
-    }
-}
-function runClearTimeout(marker) {
-    if (cachedClearTimeout === clearTimeout) {
-        //normal enviroments in sane situations
-        return clearTimeout(marker);
-    }
-    // if clearTimeout wasn't available but was latter defined
-    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
-        cachedClearTimeout = clearTimeout;
-        return clearTimeout(marker);
-    }
-    try {
-        // when when somebody has screwed with setTimeout but no I.E. maddness
-        return cachedClearTimeout(marker);
-    } catch (e) {
-        try {
-            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
-            return cachedClearTimeout.call(null, marker);
-        } catch (e) {
-            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
-            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
-            return cachedClearTimeout.call(this, marker);
-        }
-    }
-}
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
-
-function cleanUpNextTick() {
-    if (!draining || !currentQueue) {
-        return;
-    }
-    draining = false;
-    if (currentQueue.length) {
-        queue = currentQueue.concat(queue);
-    } else {
-        queueIndex = -1;
-    }
-    if (queue.length) {
-        drainQueue();
-    }
-}
-
-function drainQueue() {
-    if (draining) {
-        return;
-    }
-    var timeout = runTimeout(cleanUpNextTick);
-    draining = true;
-
-    var len = queue.length;
-    while (len) {
-        currentQueue = queue;
-        queue = [];
-        while (++queueIndex < len) {
-            if (currentQueue) {
-                currentQueue[queueIndex].run();
-            }
-        }
-        queueIndex = -1;
-        len = queue.length;
-    }
-    currentQueue = null;
-    draining = false;
-    runClearTimeout(timeout);
-}
-
-process.nextTick = function (fun) {
-    var args = new Array(arguments.length - 1);
-    if (arguments.length > 1) {
-        for (var i = 1; i < arguments.length; i++) {
-            args[i - 1] = arguments[i];
-        }
-    }
-    queue.push(new Item(fun, args));
-    if (queue.length === 1 && !draining) {
-        runTimeout(drainQueue);
-    }
-};
-
-// v8 likes predictible objects
-function Item(fun, array) {
-    this.fun = fun;
-    this.array = array;
-}
-Item.prototype.run = function () {
-    this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
-
-function noop() {}
-
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
-process.prependListener = noop;
-process.prependOnceListener = noop;
-
-process.listeners = function (name) {
-    return [];
-};
-
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-};
-
-process.cwd = function () {
-    return '/';
-};
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-process.umask = function () {
-    return 0;
-};
-
-/***/ }),
-/* 4 */
-/***/ (function(module, exports) {
-
-var g;
-
-// This works in non-strict mode
-g = function () {
-	return this;
-}();
-
-try {
-	// This works if eval is allowed (see CSP)
-	g = g || Function("return this")() || (1, eval)("this");
-} catch (e) {
-	// This works if the window reference is available
-	if (typeof window === "object") g = window;
-}
-
-// g can still be undefined, but nothing to do about it...
-// We return undefined, instead of nothing here, so it's
-// easier to handle this case. if(!global) { ...}
-
-module.exports = g;
-
-/***/ }),
-/* 5 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_vue__ = __webpack_require__(0);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__services_data__ = __webpack_require__(1);
-
-
-
-const internals = {
-
-  // Constants
-
-  kColors: {
-    donatello: 'purple',
-    leonardo: 'blue',
-    michaelangelo: 'orange',
-    raphael: 'red'
-  },
-  kFrequency: 100,
-  kGradientFade: 0.1,
-  kMinValue: 25,
-  kMaxValue: 100,
-  kRandomJitter: 10,
-  kTargetFPS: 60,
-
-  // Utility functions
-
-  scale(value, min, max) {
-
-    return (value - min) / (max - min) * (internals.kMaxValue - internals.kMinValue) - internals.kMinValue;
-  }
-};
-
-/* harmony default export */ __webpack_exports__["a"] = (__WEBPACK_IMPORTED_MODULE_0_vue__["a" /* default */].component('posts', {
-  template: '<transition name="fade">' + '<canvas v-show="state === 1" class="wave-renderer"></canvas>' + '</transition>',
-
-  data: __WEBPACK_IMPORTED_MODULE_1__services_data__["a" /* default */].data,
-
-  computed: {
-
-    // Convert from the min / max value in the measurement to a
-    // predefined min value between 0 and 100 (see kMinValue and
-    // kMaxValue for actual values)
-
-    scaledAverages() {
-
-      const keys = Object.keys(this.runningAverages);
-
-      const averages = keys.reduce((averages, averageCategory) => {
-
-        const runningAverage = this.runningAverages[averageCategory];
-        averages[averageCategory] = runningAverage.average;
-        return averages;
-      }, {});
-
-      const max = Math.max(...Object.values(averages));
-      const min = Math.min(...Object.values(averages));
-
-      const scaledAverages = Object.keys(averages).reduce((scaledAverages, averageCategory) => {
-
-        const value = averages[averageCategory];
-        scaledAverages[averageCategory] = internals.scale(value, min, max);
-        return scaledAverages;
-      }, {});
-
-      return scaledAverages;
-    }
-  },
-
-  methods: {
-    onResize() {
-
-      this.$el.width = window.innerWidth;
-      this.$el.height = window.innerHeight;
-    }
-  },
-
-  // Initiates the animation loop
-
-  mounted() {
-
-    // Make sure we resize, do an initial sizing
-
-    window.addEventListener('resize', this.onResize.bind(this));
-    this.onResize();
-
-    // Start the whole animation (Sorry it's a mess)
-
-    const canvas = this.$el;
-
-    const context = canvas.getContext('2d');
-    const interval = 1000 / internals.kTargetFPS;
-
-    let lastTimestamp = 0;
-
-    const animationHandler = timestamp => {
-
-      window.requestAnimationFrame(animationHandler);
-      const delta = timestamp - lastTimestamp;
-
-      if (delta > interval) {
-
-        const keys = Object.keys(this.scaledAverages);
-        const values = Object.values(this.scaledAverages);
-        const segments = keys.length;
-        const period = canvas.width / segments;
-
-        const fillGradient = context.createLinearGradient(0, 0, canvas.width, 0);
-        const gradientBandWidth = 1 / segments;
-
-        // Position the drawing cursor left-center of screen
-
-        context.clearRect(0, 0, canvas.width, canvas.height);
-        context.beginPath();
-        context.moveTo(0, canvas.height);
-        context.lineTo(0, canvas.height / 2);
-
-        // Iterate over the segments
-
-        for (let currentSegment = 0; currentSegment < segments; ++currentSegment) {
-          const segmentStart = currentSegment * period;
-          const segmentEnd = currentSegment + period;
-
-          const category = keys[currentSegment];
-          const magnitude = values[currentSegment];
-          const segmentHeight = Math.round(Math.random() * internals.kRandomJitter + magnitude * (canvas.height / 2) / 100);
-
-          // Calculate the gradient using the correct color according to
-          // scale
-
-          const color = internals.kColors[category] || 'black';
-          let currentGradientPosition = currentSegment * gradientBandWidth + internals.kGradientFade;
-          fillGradient.addColorStop(currentGradientPosition, color);
-          currentGradientPosition = (currentSegment + 1) * gradientBandWidth - internals.kGradientFade;
-          fillGradient.addColorStop(currentGradientPosition, color);
-
-          // This draws the sine wave
-
-          for (let angle = 0; angle < 180; ++angle) {
-            const currentPixel = segmentStart + angle * period / 180;
-            const currentAngle = angle + 180 * (currentSegment % 2);
-            const currentRadians = currentAngle * Math.PI / 180;
-            const currentHeight = segmentHeight * Math.sin(internals.kFrequency * currentRadians);
-
-            context.lineTo(currentPixel, currentHeight + canvas.height / 2);
-          }
-        }
-
-        context.lineTo(canvas.width, canvas.height / 2);
-        context.lineTo(canvas.width, canvas.height);
-        context.fillStyle = fillGradient;
-        context.fill();
-
-        lastTimestamp = timestamp;
-      }
-    };
-
-    window.requestAnimationFrame(animationHandler);
-  }
-}));
-
-/***/ }),
-/* 6 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_vue__ = __webpack_require__(0);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__services_data__ = __webpack_require__(1);
-
-
-
-const internals = {};
-
-/* harmony default export */ __webpack_exports__["a"] = (__WEBPACK_IMPORTED_MODULE_0_vue__["a" /* default */].component('posts', {
-    template: '<div class="status-widget">' + '<transition name="fade">' + '<div v-if="state === 0" class="waiting-message">Waiting</div>' + '<div v-if="state === 2 && !winner" class="no-winner">Could not read you</div>' + '<div v-if="state === 2 && winner" class="winner" v-bind:class="[winner]">{{winner}}</div>' + '</transition>' + '</div>',
-
-    data: __WEBPACK_IMPORTED_MODULE_1__services_data__["a" /* default */].data
-}));
-
-/***/ })
-/******/ ]);
-});
\ No newline at end of file