From 0efb5df782c357c591917c157fc0e090978a0976 Mon Sep 17 00:00:00 2001
From: Amir Raminfar <findamir@gmail.com>
Date: Tue, 30 Oct 2018 15:26:52 -0700
Subject: [PATCH] Removes static

---
 static/index.html        |    13 -
 static/main.1f19ae8e.js  | 11479 -------------------------------------
 static/main.1f19ae8e.map |     1 -
 3 files changed, 11493 deletions(-)
 delete mode 100644 static/index.html
 delete mode 100644 static/main.1f19ae8e.js
 delete mode 100644 static/main.1f19ae8e.map
diff --git a/static/index.html b/static/index.html
deleted file mode 100644
index 78316e0fde24..000000000000
--- a/static/index.html
+++ /dev/null
@@ -1,13 +0,0 @@
-<!DOCTYPE html>
-<html>
-
-<head>
-  <meta charset="utf-8">
-  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bulma/0.7.2/css/bulma.css" integrity="sha256-dMQYvN6BU9M4mHK94P22cZ4dPGTSGOVP41yVXvXatws=" crossorigin="anonymous">
-</head>
-
-<body>
-  <div id="app"></div>
-  <script src="/main.1f19ae8e.js"></script>
-</body>
-</html>
\ No newline at end of file
diff --git a/static/main.1f19ae8e.js b/static/main.1f19ae8e.js
deleted file mode 100644
index 6dd1e355ca49..000000000000
--- a/static/main.1f19ae8e.js
+++ /dev/null
@@ -1,11479 +0,0 @@
-// modules are defined as an array
-// [ module function, map of requires ]
-//
-// map of requires is short require name -> numeric require
-//
-// anything defined in a previous bundle is accessed via the
-// orig method which is the require for previous bundles
-
-// eslint-disable-next-line no-global-assign
-parcelRequire = (function (modules, cache, entry, globalName) {
-  // Save the require from previous bundle to this closure if any
-  var previousRequire = typeof parcelRequire === 'function' && parcelRequire;
-  var nodeRequire = typeof require === 'function' && require;
-
-  function newRequire(name, jumped) {
-    if (!cache[name]) {
-      if (!modules[name]) {
-        // if we cannot find the module within our internal map or
-        // cache jump to the current global require ie. the last bundle
-        // that was added to the page.
-        var currentRequire = typeof parcelRequire === 'function' && parcelRequire;
-        if (!jumped && currentRequire) {
-          return currentRequire(name, true);
-        }
-
-        // If there are other bundles on this page the require from the
-        // previous one is saved to 'previousRequire'. Repeat this as
-        // many times as there are bundles until the module is found or
-        // we exhaust the require chain.
-        if (previousRequire) {
-          return previousRequire(name, true);
-        }
-
-        // Try the node require function if it exists.
-        if (nodeRequire && typeof name === 'string') {
-          return nodeRequire(name);
-        }
-
-        var err = new Error('Cannot find module \'' + name + '\'');
-        err.code = 'MODULE_NOT_FOUND';
-        throw err;
-      }
-
-      localRequire.resolve = resolve;
-      localRequire.cache = {};
-
-      var module = cache[name] = new newRequire.Module(name);
-
-      modules[name][0].call(module.exports, localRequire, module, module.exports, this);
-    }
-
-    return cache[name].exports;
-
-    function localRequire(x){
-      return newRequire(localRequire.resolve(x));
-    }
-
-    function resolve(x){
-      return modules[name][1][x] || x;
-    }
-  }
-
-  function Module(moduleName) {
-    this.id = moduleName;
-    this.bundle = newRequire;
-    this.exports = {};
-  }
-
-  newRequire.isParcelRequire = true;
-  newRequire.Module = Module;
-  newRequire.modules = modules;
-  newRequire.cache = cache;
-  newRequire.parent = previousRequire;
-  newRequire.register = function (id, exports) {
-    modules[id] = [function (require, module) {
-      module.exports = exports;
-    }, {}];
-  };
-
-  for (var i = 0; i < entry.length; i++) {
-    newRequire(entry[i]);
-  }
-
-  if (entry.length) {
-    // Expose entry point to Node, AMD or browser globals
-    // Based on /~https://github.com/ForbesLindesay/umd/blob/master/template.js
-    var mainExports = newRequire(entry[entry.length - 1]);
-
-    // CommonJS
-    if (typeof exports === "object" && typeof module !== "undefined") {
-      module.exports = mainExports;
-
-    // RequireJS
-    } else if (typeof define === "function" && define.amd) {
-     define(function () {
-       return mainExports;
-     });
-
-    // <script>
-    } else if (globalName) {
-      this[globalName] = mainExports;
-    }
-  }
-
-  // Override the current require with this new one
-  return newRequire;
-})({"../node_modules/vue/dist/vue.runtime.esm.js":[function(require,module,exports) {
-var global = arguments[3];
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-/*!
- * Vue.js v2.5.17
- * (c) 2014-2018 Evan You
- * Released under the MIT License.
- */
-
-/*  */
-var emptyObject = Object.freeze({}); // these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
-
-function isUndef(v) {
-  return v === undefined || v === null;
-}
-
-function isDef(v) {
-  return v !== undefined && v !== null;
-}
-
-function isTrue(v) {
-  return v === true;
-}
-
-function isFalse(v) {
-  return v === false;
-}
-/**
- * Check if value is primitive
- */
-
-
-function isPrimitive(value) {
-  return typeof value === 'string' || typeof value === 'number' || // $flow-disable-line
-  typeof value === 'symbol' || typeof value === 'boolean';
-}
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-
-
-function isObject(obj) {
-  return obj !== null && typeof obj === 'object';
-}
-/**
- * Get the raw type string of a value e.g. [object Object]
- */
-
-
-var _toString = Object.prototype.toString;
-
-function toRawType(value) {
-  return _toString.call(value).slice(8, -1);
-}
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-
-
-function isPlainObject(obj) {
-  return _toString.call(obj) === '[object Object]';
-}
-
-function isRegExp(v) {
-  return _toString.call(v) === '[object RegExp]';
-}
-/**
- * Check if val is a valid array index.
- */
-
-
-function isValidArrayIndex(val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val);
-}
-/**
- * Convert a value to a string that is actually rendered.
- */
-
-
-function toString(val) {
-  return val == null ? '' : typeof val === 'object' ? JSON.stringify(val, null, 2) : String(val);
-}
-/**
- * Convert a input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-
-
-function toNumber(val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n;
-}
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-
-
-function makeMap(str, expectsLowerCase) {
-  var map = Object.create(null);
-  var list = str.split(',');
-
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-
-  return expectsLowerCase ? function (val) {
-    return map[val.toLowerCase()];
-  } : function (val) {
-    return map[val];
-  };
-}
-/**
- * Check if a tag is a built-in tag.
- */
-
-
-var isBuiltInTag = makeMap('slot,component', true);
-/**
- * Check if a attribute is a reserved attribute.
- */
-
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-/**
- * Remove an item from an array
- */
-
-function remove(arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-
-    if (index > -1) {
-      return arr.splice(index, 1);
-    }
-  }
-}
-/**
- * Check whether the object has the property.
- */
-
-
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-
-function hasOwn(obj, key) {
-  return hasOwnProperty.call(obj, key);
-}
-/**
- * Create a cached version of a pure function.
- */
-
-
-function cached(fn) {
-  var cache = Object.create(null);
-  return function cachedFn(str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str));
-  };
-}
-/**
- * Camelize a hyphen-delimited string.
- */
-
-
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) {
-    return c ? c.toUpperCase() : '';
-  });
-});
-/**
- * Capitalize a string.
- */
-
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1);
-});
-/**
- * Hyphenate a camelCase string.
- */
-
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase();
-});
-/**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
- */
-
-/* istanbul ignore next */
-
-function polyfillBind(fn, ctx) {
-  function boundFn(a) {
-    var l = arguments.length;
-    return l ? l > 1 ? fn.apply(ctx, arguments) : fn.call(ctx, a) : fn.call(ctx);
-  }
-
-  boundFn._length = fn.length;
-  return boundFn;
-}
-
-function nativeBind(fn, ctx) {
-  return fn.bind(ctx);
-}
-
-var bind = Function.prototype.bind ? nativeBind : polyfillBind;
-/**
- * Convert an Array-like object to a real Array.
- */
-
-function toArray(list, start) {
-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-
-  return ret;
-}
-/**
- * Mix properties into target object.
- */
-
-
-function extend(to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
-  }
-
-  return to;
-}
-/**
- * Merge an Array of Objects into a single Object.
- */
-
-
-function toObject(arr) {
-  var res = {};
-
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-
-  return res;
-}
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
- */
-
-
-function noop(a, b, c) {}
-/**
- * Always return false.
- */
-
-
-var no = function (a, b, c) {
-  return false;
-};
-/**
- * Return same value
- */
-
-
-var identity = function (_) {
-  return _;
-};
-/**
- * Generate a static keys string from compiler modules.
- */
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-
-
-function looseEqual(a, b) {
-  if (a === b) {
-    return true;
-  }
-
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i]);
-        });
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key]);
-        });
-      } else {
-        /* istanbul ignore next */
-        return false;
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false;
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b);
-  } else {
-    return false;
-  }
-}
-
-function looseIndexOf(arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) {
-      return i;
-    }
-  }
-
-  return -1;
-}
-/**
- * Ensure a function is called only once.
- */
-
-
-function once(fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  };
-}
-
-var SSR_ATTR = 'data-server-rendered';
-var ASSET_TYPES = ['component', 'directive', 'filter'];
-var LIFECYCLE_HOOKS = ['beforeCreate', 'created', 'beforeMount', 'mounted', 'beforeUpdate', 'updated', 'beforeDestroy', 'destroyed', 'activated', 'deactivated', 'errorCaptured'];
-/*  */
-
-var config = {
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
-
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: "development" !== 'production',
-
-  /**
-   * Whether to enable devtools
-   */
-  devtools: "development" !== 'production',
-
-  /**
-   * Whether to record perf
-   */
-  performance: false,
-
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
-
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
-
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
-
-  /**
-   * Custom user key aliases for v-on
-   */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
-
-  /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
-   */
-  isReservedTag: no,
-
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
-   */
-  isReservedAttr: no,
-
-  /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
-   */
-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-};
-/*  */
-
-/**
- * Check if a string starts with $ or _
- */
-
-function isReserved(str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F;
-}
-/**
- * Define a property.
- */
-
-
-function def(obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-/**
- * Parse simple path.
- */
-
-
-var bailRE = /[^\w.$]/;
-
-function parsePath(path) {
-  if (bailRE.test(path)) {
-    return;
-  }
-
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) {
-        return;
-      }
-
-      obj = obj[segments[i]];
-    }
-
-    return obj;
-  };
-}
-/*  */
-// can we use __proto__?
-
-
-var hasProto = '__proto__' in {}; // Browser environment sniffing
-
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0 || weexPlatform === 'android';
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA) || weexPlatform === 'ios';
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge; // Firefox has a "watch" function on Object.prototype...
-
-var nativeWatch = {}.watch;
-var supportsPassive = false;
-
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', {
-      get: function get() {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    }); // /~https://github.com/facebook/flow/issues/285
-
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-} // this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-
-
-var _isServer;
-
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-
-  return _isServer;
-}; // detect devtools
-
-
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-/* istanbul ignore next */
-
-function isNative(Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString());
-}
-
-var hasSymbol = typeof Symbol !== 'undefined' && isNative(Symbol) && typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-var _Set;
-/* istanbul ignore if */
-// $flow-disable-line
-
-
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = function () {
-    function Set() {
-      this.set = Object.create(null);
-    }
-
-    Set.prototype.has = function has(key) {
-      return this.set[key] === true;
-    };
-
-    Set.prototype.add = function add(key) {
-      this.set[key] = true;
-    };
-
-    Set.prototype.clear = function clear() {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }();
-}
-/*  */
-
-
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = noop; // work around flow check
-
-var formatComponentName = noop;
-
-if ("development" !== 'production') {
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-
-  var classify = function (str) {
-    return str.replace(classifyRE, function (c) {
-      return c.toUpperCase();
-    }).replace(/[-_]/g, '');
-  };
-
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && !config.silent) {
-      console.error("[Vue warn]: " + msg + trace);
-    }
-  };
-
-  tip = function (msg, vm) {
-    if (hasConsole && !config.silent) {
-      console.warn("[Vue tip]: " + msg + (vm ? generateComponentTrace(vm) : ''));
-    }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>';
-    }
-
-    var options = typeof vm === 'function' && vm.cid != null ? vm.options : vm._isVue ? vm.$options || vm.constructor.options : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (name ? "<" + classify(name) + ">" : "<Anonymous>") + (file && includeFile !== false ? " at " + file : '');
-  };
-
-  var repeat = function (str, n) {
-    var res = '';
-
-    while (n) {
-      if (n % 2 === 1) {
-        res += str;
-      }
-
-      if (n > 1) {
-        str += str;
-      }
-
-      n >>= 1;
-    }
-
-    return res;
-  };
-
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue;
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-
-      return '\n\nfound in\n\n' + tree.map(function (vm, i) {
-        return "" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm) ? formatComponentName(vm[0]) + "... (" + vm[1] + " recursive calls)" : formatComponentName(vm));
-      }).join('\n');
-    } else {
-      return "\n\n(found in " + formatComponentName(vm) + ")";
-    }
-  };
-}
-/*  */
-
-
-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();
-}
-/*  */
-
-
-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.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = 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: {
-    configurable: true
-  }
-}; // 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.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.isCloned = true;
-  return cloned;
-}
-/*
- * 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);
-var methodsToPatch = ['push', 'pop', 'shift', 'unshift', 'splice', 'sort', 'reverse'];
-/**
- * Intercept mutating methods and emit events
- */
-
-methodsToPatch.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);
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-
-var shouldObserve = true;
-
-function toggleObserving(value) {
-  shouldObserve = value;
-}
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch 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(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) || value instanceof VNode) {
-    return;
-  }
-
-  var ob;
-
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (shouldObserve && !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(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;
-
-  if (!getter && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  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 ("development" !== '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 ("development" !== 'production' && (isUndef(target) || isPrimitive(target))) {
-    warn("Cannot set reactive property on undefined, null, or primitive value: " + target);
-  }
-
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val;
-  }
-
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val;
-  }
-
-  var ob = target.__ob__;
-
-  if (target._isVue || ob && ob.vmCount) {
-    "development" !== '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(ob.value, key, val);
-  ob.dep.notify();
-  return val;
-}
-/**
- * Delete a property and trigger change if necessary.
- */
-
-
-function del(target, key) {
-  if ("development" !== 'production' && (isUndef(target) || isPrimitive(target))) {
-    warn("Cannot delete reactive property on undefined, null, or primitive value: " + target);
-  }
-
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return;
-  }
-
-  var ob = target.__ob__;
-
-  if (target._isVue || ob && ob.vmCount) {
-    "development" !== '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 ("development" !== '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, this) : childVal, typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal);
-    };
-  } else {
-    return function mergedInstanceDataFn() {
-      // instance merge
-      var instanceData = typeof childVal === 'function' ? childVal.call(vm, vm) : childVal;
-      var defaultData = typeof parentVal === 'function' ? parentVal.call(vm, vm) : parentVal;
-
-      if (instanceData) {
-        return mergeData(instanceData, defaultData);
-      } else {
-        return defaultData;
-      }
-    };
-  }
-}
-
-strats.data = function (parentVal, childVal, vm) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      "development" !== 'production' && warn('The "data" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.', vm);
-      return parentVal;
-    }
-
-    return mergeDataOrFn(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, vm, key) {
-  var res = Object.create(parentVal || null);
-
-  if (childVal) {
-    "development" !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal);
-  } else {
-    return 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, vm, key) {
-  // 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 ("development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-
-  if (!parentVal) {
-    return childVal;
-  }
-
-  var ret = {};
-  extend(ret, parentVal);
-
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-
-    ret[key$1] = parent ? parent.concat(child) : Array.isArray(child) ? child : [child];
-  }
-
-  return ret;
-};
-/**
- * Other object hashes.
- */
-
-
-strats.props = strats.methods = strats.inject = strats.computed = function (parentVal, childVal, vm, key) {
-  if (childVal && "development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-
-  if (!parentVal) {
-    return childVal;
-  }
-
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-
-  if (childVal) {
-    extend(ret, childVal);
-  }
-
-  return ret;
-};
-
-strats.provide = mergeDataOrFn;
-/**
- * Default strategy.
- */
-
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined ? parentVal : childVal;
-};
-/**
- * Validate component names
- */
-
-
-function checkComponents(options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName(name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn('Invalid component name: "' + name + '". Component names ' + 'can only contain alphanumeric characters and the hyphen, ' + 'and must start with a letter.');
-  }
-
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + name);
-  }
-}
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-
-
-function normalizeProps(options, vm) {
-  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 ("development" !== '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
-      };
-    }
-  } else if ("development" !== 'production') {
-    warn("Invalid value for option \"props\": expected an Array or an Object, " + "but got " + toRawType(props) + ".", vm);
-  }
-
-  options.props = res;
-}
-/**
- * Normalize all injections into Object-based format
- */
-
-
-function normalizeInject(options, vm) {
-  var inject = options.inject;
-
-  if (!inject) {
-    return;
-  }
-
-  var normalized = options.inject = {};
-
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = {
-        from: inject[i]
-      };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val) ? extend({
-        from: key
-      }, val) : {
-        from: val
-      };
-    }
-  } else if ("development" !== 'production') {
-    warn("Invalid value for option \"inject\": expected an Array or an Object, " + "but got " + toRawType(inject) + ".", vm);
-  }
-}
-/**
- * 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
-        };
-      }
-    }
-  }
-}
-
-function assertObjectType(name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn("Invalid value for option \"" + name + "\": expected an Object, " + "but got " + toRawType(value) + ".", vm);
-  }
-}
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-
-
-function mergeOptions(parent, child, vm) {
-  if ("development" !== 'production') {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  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 ("development" !== '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]; // boolean casting
-
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        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 prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-
-  if ("development" !== 'production' && // skip validation for weex recycle-list child component props
-  !(false && isObject(value) && '@binding' in value)) {
-    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 ("development" !== '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 " + toRawType(value) + ".", 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)$/;
-
-function assertType(value, type) {
-  var valid;
-  var expectedType = getType(type);
-
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase(); // for primitive wrapper objects
-
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-
-  return {
-    valid: valid,
-    expectedType: expectedType
-  };
-}
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-
-
-function getType(fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : '';
-}
-
-function isSameType(a, b) {
-  return getType(a) === getType(b);
-}
-
-function getTypeIndex(type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1;
-  }
-
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i;
-    }
-  }
-
-  return -1;
-}
-/*  */
-
-
-function handleError(err, vm, info) {
-  if (vm) {
-    var cur = vm;
-
-    while (cur = cur.$parent) {
-      var hooks = cur.$options.errorCaptured;
-
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-
-            if (capture) {
-              return;
-            }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError(err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info);
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-
-  logError(err, vm, info);
-}
-
-function logError(err, vm, info) {
-  if ("development" !== 'production') {
-    warn("Error in " + info + ": \"" + err.toString() + "\"", vm);
-  }
-  /* istanbul ignore else */
-
-
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err;
-  }
-}
-/*  */
-
-/* globals MessageChannel */
-
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks() {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-} // Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-
-
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false; // Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-
-/* istanbul ignore if */
-
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (isNative(MessageChannel) || // PhantomJS
-MessageChannel.toString() === '[object MessageChannelConstructor]')) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-} // Determine microtask defer implementation.
-
-/* istanbul ignore next, $flow-disable-line */
-
-
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-
-  microTimerFunc = function () {
-    p.then(flushCallbacks); // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-
-    if (isIOS) {
-      setTimeout(noop);
-    }
-  };
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-
-
-function withMacroTask(fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res;
-  });
-}
-
-function nextTick(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;
-
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  } // $flow-disable-line
-
-
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    });
-  }
-}
-/*  */
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-
-var initProxy;
-
-if ("development" !== '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 that this property is reactive, ' + 'either in the data option, or for class-based components, by ' + 'initializing the property. ' + 'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.', target);
-  };
-
-  var hasProxy = typeof Proxy !== 'undefined' && isNative(Proxy);
-
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    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 seenObjects = new _Set();
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-
-function traverse(val) {
-  _traverse(val, seenObjects);
-
-  seenObjects.clear();
-}
-
-function _traverse(val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-
-  if (!isA && !isObject(val) || Object.isFrozen(val) || val instanceof VNode) {
-    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 mark;
-var measure;
-
-if ("development" !== '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);
-    };
-  }
-}
-/*  */
-
-
-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, def, cur, old, event;
-
-  for (name in on) {
-    def = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    /* istanbul ignore if */
-
-    if (isUndef(cur)) {
-      "development" !== '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, event.params);
-    } 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) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.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 ("development" !== '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, lastIndex, last;
-
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-
-    if (isUndef(c) || typeof c === 'boolean') {
-      continue;
-    }
-
-    lastIndex = res.length - 1;
-    last = res[lastIndex]; //  nested
-
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, (nestedIndex || '') + "_" + i); // merge adjacent text nodes
-
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + c[0].text);
-          c.shift();
-        }
-
-        res.push.apply(res, c);
-      }
-    } 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
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = 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 || hasSymbol && comp[Symbol.toStringTag] === 'Module') {
-    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) {
-      "development" !== '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("development" !== 'production' ? "timeout (" + res.timeout + "ms)" : null);
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false; // return in case resolved synchronously
-
-    return factory.loading ? factory.loadingComp : factory.resolved;
-  }
-}
-/*  */
-
-
-function isAsyncPlaceholder(node) {
-  return node.isComment && node.asyncFactory;
-}
-/*  */
-
-
-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) || isAsyncPlaceholder(c))) {
-        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) {
-  if (once) {
-    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);
-  target = undefined;
-}
-
-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 = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
-      }
-
-      return vm;
-    } // specific event
-
-
-    var cbs = vm._events[event];
-
-    if (!cbs) {
-      return vm;
-    }
-
-    if (!fn) {
-      vm._events[event] = null;
-      return vm;
-    }
-
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-
-      while (i$1--) {
-        cb = cbs[i$1];
-
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break;
-        }
-      }
-    }
-
-    return vm;
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-
-    if ("development" !== '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;
-  }
-
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data; // remove slot attribute if the node is resolved as a Vue slot node
-
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    } // named slots should only be respected if the vnode was rendered in the
-    // same context.
-
-
-    if ((child.context === context || child.fnContext === context) && data && data.slot != null) {
-      var name = data.slot;
-      var slot = slots[name] || (slots[name] = []);
-
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  } // ignore slots that contains only whitespace
-
-
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
-    }
-  }
-
-  return slots;
-}
-
-function isWhitespace(node) {
-  return node.isComment && !node.asyncFactory || 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;
-    } // release circular reference (#6759)
-
-
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent(vm, el, hydrating) {
-  vm.$el = el;
-
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-
-    if ("development" !== '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 ("development" !== '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("vue " + name + " render", startTag, endTag);
-      mark(startTag);
-
-      vm._update(vnode, hydrating);
-
-      mark(endTag);
-      measure("vue " + name + " patch", startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  } // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-
-
-  new Watcher(vm, updateComponent, noop, null, true
-  /* isRenderWatcher */
-  );
-  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 ("development" !== '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 $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject; // update props
-
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-
-    toggleObserving(true); // keep a copy of raw propsData
-
-    vm.$options.propsData = propsData;
-  } // update listeners
-
-
-  listeners = listeners || emptyObject;
-  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 ("development" !== '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) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  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);
-  }
-
-  popTarget();
-}
-/*  */
-
-
-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 ("development" !== '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 ("development" !== '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$1 = 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, isRenderWatcher) {
-  this.vm = vm;
-
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-
-  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$1; // 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 = "development" !== '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 () {};
-
-      "development" !== '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;
-  }
-};
-/*  */
-
-
-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 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
-
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-
-  var loop = function (key) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-
-    if ("development" !== 'production') {
-      var hyphenatedKey = hyphenate(key);
-
-      if (isReservedAttribute(hyphenatedKey) || config.isReservedAttr(hyphenatedKey)) {
-        warn("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop.", vm);
-      }
-
-      defineReactive(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(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);
-
-  toggleObserving(true);
-}
-
-function initData(vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function' ? getData(data, vm) : data || {};
-
-  if (!isPlainObject(data)) {
-    data = {};
-    "development" !== '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 ("development" !== 'production') {
-      if (methods && hasOwn(methods, key)) {
-        warn("Method \"" + key + "\" has already been defined as a data property.", vm);
-      }
-    }
-
-    if (props && hasOwn(props, key)) {
-      "development" !== '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) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-
-  try {
-    return data.call(vm, vm);
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {};
-  } finally {
-    popTarget();
-  }
-}
-
-var computedWatcherOptions = {
-  lazy: true
-};
-
-function initComputed(vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null); // computed properties are just getters during SSR
-
-  var isSSR = isServerRendering();
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-
-    if ("development" !== 'production' && getter == null) {
-      warn("Getter is missing for computed property \"" + key + "\".", vm);
-    }
-
-    if (!isSSR) {
-      // 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 ("development" !== '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) {
-  var shouldCache = !isServerRendering();
-
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache ? createComputedGetter(key) : userDef;
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get ? shouldCache && userDef.cache !== false ? createComputedGetter(key) : userDef.get : noop;
-    sharedPropertyDefinition.set = userDef.set ? userDef.set : noop;
-  }
-
-  if ("development" !== '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) {
-  var props = vm.$options.props;
-
-  for (var key in methods) {
-    if ("development" !== '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);
-      }
-
-      if (key in vm && isReserved(key)) {
-        warn("Method \"" + key + "\" conflicts with an existing Vue instance method. " + "Avoid defining component methods that start with _ or $.");
-      }
-    }
-
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
-  }
-}
-
-function initWatch(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, expOrFn, handler, options) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-
-  return vm.$watch(expOrFn, 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 ("development" !== '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) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      if ("development" !== 'production') {
-        defineReactive(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(vm, key, result[key]);
-      }
-    });
-    toggleObserving(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).filter(function (key) {
-      /* istanbul ignore next */
-      return Object.getOwnPropertyDescriptor(inject, key).enumerable;
-    }) : Object.keys(inject);
-
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break;
-        }
-
-        source = source.$parent;
-      }
-
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function' ? provideDefault.call(vm) : provideDefault;
-        } else if ("development" !== 'production') {
-          warn("Injection \"" + key + "\" not found", vm);
-        }
-      }
-    }
-
-    return result;
-  }
-}
-/*  */
-
-/**
- * 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];
-  var nodes;
-
-  if (scopedSlotFn) {
-    // scoped slot
-    props = props || {};
-
-    if (bindObject) {
-      if ("development" !== 'production' && !isObject(bindObject)) {
-        warn('slot v-bind without argument expects an Object', this);
-      }
-
-      props = extend(extend({}, bindObject), props);
-    }
-
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    var slotNodes = this.$slots[name]; // warn duplicate slot usage
-
-    if (slotNodes) {
-      if ("development" !== '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;
-    }
-
-    nodes = slotNodes || fallback;
-  }
-
-  var target = props && props.slot;
-
-  if (target) {
-    return this.$createElement('template', {
-      slot: target
-    }, nodes);
-  } else {
-    return nodes;
-  }
-}
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-
-
-function resolveFilter(id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity;
-}
-/*  */
-
-
-function isKeyNotMatch(expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1;
-  } else {
-    return expect !== actual;
-  }
-}
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-
-
-function checkKeyCodes(eventKeyCode, key, builtInKeyCode, eventKeyName, builtInKeyName) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName);
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode);
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key;
-  }
-}
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-
-
-function bindObjectProps(data, tag, value, asProp, isSync) {
-  if (value) {
-    if (!isObject(value)) {
-      "development" !== '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 cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index]; // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-
-  if (tree && !isInFor) {
-    return tree;
-  } // otherwise, render a fresh tree.
-
-
-  tree = cached[index] = this.$options.staticRenderFns[index].call(this._renderProxy, null, this // for render fns generated for functional component templates
-  );
-  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)) {
-      "development" !== '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(existing, ours) : ours;
-      }
-    }
-  }
-
-  return data;
-}
-/*  */
-
-
-function installRenderHelpers(target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-/*  */
-
-
-function FunctionalRenderContext(data, props, children, parent, Ctor) {
-  var options = Ctor.options; // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-
-  var contextVm;
-
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent); // $flow-disable-line
-
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent; // $flow-disable-line
-
-    parent = parent._original;
-  }
-
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-
-  this.slots = function () {
-    return resolveSlots(children, parent);
-  }; // support for compiled functional template
-
-
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options; // pre-resolve slots for renderSlot()
-
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
-      }
-
-      return vnode;
-    };
-  } else {
-    this._c = function (a, b, c, d) {
-      return createElement(contextVm, a, b, c, d, needNormalization);
-    };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent(Ctor, propsData, data, contextVm, children) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) {
-      mergeProps(props, data.attrs);
-    }
-
-    if (isDef(data.props)) {
-      mergeProps(props, data.props);
-    }
-  }
-
-  var renderContext = new FunctionalRenderContext(data, props, children, contextVm, Ctor);
-  var vnode = options.render.call(null, renderContext._c, renderContext);
-
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options);
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
-    }
-
-    return res;
-  }
-}
-
-function cloneAndMarkFunctionalResult(vnode, data, contextVm, options) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-
-  return clone;
-}
-
-function mergeProps(to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-/*  */
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-// Updates the state of the component to weex native render engine.
-
-/*  */
-// /~https://github.com/Hanks10100/weex-native-directive/tree/master/component
-// listening on native callback
-
-/*  */
-
-/*  */
-// inline hooks to be invoked on component VNodes during patch
-
-
-var componentVNodeHooks = {
-  init: function init(vnode, hydrating, parentElm, refElm) {
-    if (vnode.componentInstance && !vnode.componentInstance._isDestroyed && vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(vnode, activeInstance, parentElm, refElm);
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-  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 ("development" !== '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;
-    }
-  } // install component management hooks onto the placeholder node
-
-
-  installComponentHooks(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); // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // /~https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-  /* istanbul ignore if */
-
-  return vnode;
-}
-
-function createComponentInstanceForVnode(vnode, // we know it's MountedComponentVNode but flow doesn't
-parent, // activeInstance in lifecycle state
-parentElm, refElm) {
-  var options = {
-    _isComponent: true,
-    parent: parent,
-    _parentVnode: vnode,
-    _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 vnode.componentOptions.Ctor(options);
-}
-
-function installComponentHooks(data) {
-  var hooks = data.hook || (data.hook = {});
-
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
-  }
-} // 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__)) {
-    "development" !== '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 ("development" !== '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 = context.$vnode && context.$vnode.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 (Array.isArray(vnode)) {
-    return vnode;
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) {
-      applyNS(vnode, ns);
-    }
-
-    if (isDef(data)) {
-      registerDeepBindings(data);
-    }
-
-    return vnode;
-  } else {
-    return createEmptyVNode();
-  }
-}
-
-function applyNS(vnode, ns, force) {
-  vnode.ns = ns;
-
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-
-  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) || isTrue(force) && child.tag !== 'svg')) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-} // ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-
-
-function registerDeepBindings(data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-/*  */
-
-
-function initRender(vm) {
-  vm._vnode = null; // the root of the child tree
-
-  vm._staticTrees = null; // v-once cached trees
-
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(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 ("development" !== 'production') {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
-  }
-}
-
-function renderMixin(Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
-
-  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 _parentVnode = ref._parentVnode; // reset _rendered flag on slots for duplicate slot check
-
-    if ("development" !== 'production') {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
-    } // 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"); // return error render result,
-      // or previous vnode to prevent render error causing blank component
-
-      /* istanbul ignore else */
-
-      if ("development" !== 'production') {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
-      }
-    } // return empty vnode in case the render function errored out
-
-
-    if (!(vnode instanceof VNode)) {
-      if ("development" !== '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;
-  };
-}
-/*  */
-
-
-var uid$3 = 0;
-
-function initMixin(Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this; // a uid
-
-    vm._uid = uid$3++;
-    var startTag, endTag;
-    /* istanbul ignore if */
-
-    if ("development" !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-start:" + 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 ("development" !== '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 ("development" !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure("vue " + 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.
-
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  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(options) {
-  if ("development" !== 'production' && !(this instanceof Vue)) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-
-  this._init(options);
-}
-
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
-/*  */
-
-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 ("development" !== 'production' && name) {
-      validateComponentName(name);
-    }
-
-    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 ("development" !== 'production' && type === 'component') {
-          validateComponentName(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;
-      }
-    };
-  });
-}
-/*  */
-
-
-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(keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-
-  for (var key in cache) {
-    var cachedNode = cache[key];
-
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
-
-function pruneCacheEntry(cache, key, keys, current) {
-  var cached$$1 = cache[key];
-
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
-  }
-
-  cache[key] = null;
-  remove(keys, key);
-}
-
-var patternTypes = [String, RegExp, Array];
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
-  created: function created() {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
-  destroyed: function destroyed() {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
-    }
-  },
-  mounted: function mounted() {
-    var this$1 = this;
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) {
-        return matches(val, name);
-      });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) {
-        return !matches(val, name);
-      });
-    });
-  },
-  render: function render() {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-
-      if ( // not included
-      include && (!name || !matches(include, name)) || // excluded
-      exclude && name && matches(exclude, name)) {
-        return vnode;
-      }
-
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      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 (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance; // make current key freshest
-
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key); // prune oldest entry
-
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
-
-      vnode.data.keepAlive = true;
-    }
-
-    return vnode || slot && slot[0];
-  }
-};
-var builtInComponents = {
-  KeepAlive: KeepAlive
-  /*  */
-
-};
-
-function initGlobalAPI(Vue) {
-  // config
-  var configDef = {};
-
-  configDef.get = function () {
-    return config;
-  };
-
-  if ("development" !== '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
-  };
-  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);
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get() {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext;
-  }
-}); // expose FunctionalRenderContext for ssr runtime helper installation
-
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-Vue.version = '2.5.17';
-/*  */
-// 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,progress');
-
-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 && childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && 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 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());
-  }
-}
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-/*  */
-
-/**
- * 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) {
-      "development" !== '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 setStyleScope(node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-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,
-  setStyleScope: setStyleScope
-});
-/*  */
-
-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 (!isDef(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));
-}
-
-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 || isTextInputType(typeA) && isTextInputType(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() {
-      if (--remove.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-
-    remove.listeners = listeners;
-    return remove;
-  }
-
-  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);
-    }
-  }
-
-  function isUnknownElement$$1(vnode, inVPre) {
-    return !inVPre && !vnode.ns && !(config.ignoredElements.length && config.ignoredElements.some(function (ignore) {
-      return isRegExp(ignore) ? ignore.test(vnode.tag) : ignore === vnode.tag;
-    })) && config.isUnknownElement(vnode.tag);
-  }
-
-  var creatingElmInVPre = 0;
-
-  function createElm(vnode, insertedVnodeQueue, parentElm, refElm, nested, ownerArray, index) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    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 ("development" !== 'production') {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          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 ("development" !== 'production' && data && data.pre) {
-        creatingElmInVPre--;
-      }
-    } 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)) {
-      if ("development" !== 'production') {
-        checkDuplicateKeys(children);
-      }
-
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(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;
-
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(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 && i !== vnode.fnContext && isDef(i = i.$options._scopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    }
-  }
-
-  function addVnodes(parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
-  }
-
-  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, vnodeToMove, 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;
-
-    if ("development" !== 'production') {
-      checkDuplicateKeys(newCh);
-    }
-
-    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] : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-
-        if (isUndef(idxInOld)) {
-          // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-          }
-        }
-
-        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 checkDuplicateKeys(children) {
-    var seenKeys = {};
-
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn("Duplicate keys detected: '" + key + "'. This may cause an update error.", vnode.context);
-        } else {
-          seenKeys[key] = true;
-        }
-      }
-    }
-  }
-
-  function findIdxInOld(node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-
-      if (isDef(c) && sameVnode(node, c)) {
-        return i;
-      }
-    }
-  }
-
-  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 hydrationBailed = 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
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key'); // Note: this is a browser-only function so we can assume elms are DOM nodes.
-
-  function hydrate(elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || data && data.pre;
-    vnode.elm = elm;
-
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true;
-    } // assert node match
-
-
-    if ("development" !== 'production') {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false;
-      }
-    }
-
-    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 {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if ("development" !== 'production' && typeof console !== 'undefined' && !hydrationBailed) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-
-              return false;
-            }
-          } else {
-            // iterate and compare children lists
-            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, inVPre)) {
-                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) {
-              /* istanbul ignore if */
-              if ("development" !== 'production' && typeof console !== 'undefined' && !hydrationBailed) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-
-              return false;
-            }
-          }
-        }
-      }
-
-      if (isDef(data)) {
-        var fullInvoke = false;
-
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break;
-          }
-        }
-
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-
-    return true;
-  }
-
-  function assertNodeMatch(node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || !isUnknownElement$$1(vnode, inVPre) && 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 ("development" !== '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); // create new node
-
-        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)); // update parent placeholder node element, recursively
-
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-
-            ancestor.elm = vnode.elm;
-
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
-              } // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-
-
-              var insert = ancestor.data.hook.insert;
-
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
-                }
-              }
-            } else {
-              registerRef(ancestor);
-            }
-
-            ancestor = ancestor.parent;
-          }
-        } // destroy old node
-
-
-        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, 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, '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) {
-    // $flow-disable-line
-    return res;
-  }
-
-  var i, dir;
-
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-
-    if (!dir.modifiers) {
-      // $flow-disable-line
-      dir.modifiers = emptyModifiers;
-    }
-
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  } // $flow-disable-line
-
-
-  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]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-
-  /* istanbul ignore if */
-
-
-  if ((isIE || isEdge) && 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 (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED' ? 'true' : key;
-      el.setAttribute(key, value);
-    }
-  } 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 {
-    baseSetAttr(el, key, value);
-  }
-}
-
-function baseSetAttr(el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
-
-    /* istanbul ignore if */
-    if (isIE && !isIE9 && el.tagName === 'TEXTAREA' && key === 'placeholder' && !el.__ieph) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-
-      el.addEventListener('input', blocker); // $flow-disable-line
-
-      el.__ieph = true;
-      /* IE placeholder patched */
-    }
-
-    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
-  /*  */
-
-  /*  */
-  // add a raw attr (use this in preTransforms)
-  // note: this only removes the attr from the Array (attrsList) so that it
-  // doesn't get processed by processAttrs.
-  // By default it does NOT remove it from the map (attrsMap) because the map is
-  // needed during codegen.
-
-  /*  */
-
-  /**
-   * Cross-platform code generation for component v-model
-   */
-
-  /**
-   * Cross-platform codegen helper for generating v-model value assignment code.
-   */
-
-  /*  */
-  // 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';
-/*  */
-// 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) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  } // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-
-  /* istanbul ignore if */
-
-
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler(handler, event, capture) {
-  var _target = target$1; // save current target element in closure
-
-  return function onceHandler() {
-    var res = handler.apply(null, arguments);
-
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  };
-}
-
-function add$1(event, handler, once$$1, capture, passive) {
-  handler = withMacroTask(handler);
-
-  if (once$$1) {
-    handler = createOnceHandler(handler, event, capture);
-  }
-
-  target$1.addEventListener(event, handler, supportsPassive ? {
-    capture: capture,
-    passive: passive
-  } : capture);
-}
-
-function remove$2(event, handler, capture, _target) {
-  (_target || target$1).removeEventListener(event, handler._withTask || 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);
-  target$1 = undefined;
-}
-
-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;
-      } // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-
-
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    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, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-} // check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue(elm, checkVal) {
-  return !elm.composing && (elm.tagName === 'OPTION' || isNotInFocusAndDirty(elm, checkVal) || isDirtyWithModifiers(elm, checkVal));
-}
-
-function isNotInFocusAndDirty(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 isDirtyWithModifiers(elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false;
-    }
-
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal);
-    }
-
-    if (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 && 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 likely 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) {
-  if (!def) {
-    return;
-  }
-  /* istanbul ignore else */
-
-
-  if (typeof def === 'object') {
-    var res = {};
-
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
-    }
-
-    extend(res, def);
-    return res;
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def);
-  }
-}
-
-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 :
-/* istanbul ignore next */
-function (fn) {
-  return fn();
-};
-
-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 ("development" !== '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, '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 () {
-      removeTransitionClass(el, startClass);
-
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-
-        if (!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) || el.nodeType !== 1) {
-    return rm();
-  }
-  /* istanbul ignore if */
-
-
-  if (isDef(el._leaveCb)) {
-    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 ("development" !== '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 () {
-        removeTransitionClass(el, leaveClass);
-
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-
-          if (!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.
- */
-
-/* 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 directive = {
-  inserted: function inserted(el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
-        });
-      } else {
-        setSelected(el, binding, vnode.context);
-      }
-
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd); // 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);
-        /* 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 change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple ? binding.value.some(function (v) {
-          return hasNoMatchingOption(v, curOptions);
-        }) : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-
-        if (needReset) {
-          trigger(el, 'change');
-        }
-      }
-    }
-  }
-};
-
-function setSelected(el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
-
-function actuallySetSelected(el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-
-  if (isMultiple && !Array.isArray(value)) {
-    "development" !== '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 hasNoMatchingOption(value, options) {
-  return options.every(function (o) {
-    return !looseEqual(o, value);
-  });
-}
-
-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: directive,
-  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;
-}
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-  render: function render(h) {
-    var this$1 = this;
-    var children = this.$slots.default;
-
-    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 ("development" !== '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 ("development" !== '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) && // #6687 component root is a comment node
-    !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = 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 ("development" !== '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
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-
-    this._reflow = document.body.offsetHeight;
-    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.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement; // install platform runtime directives & components
-
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents); // install platform patch function
-
-Vue.prototype.__patch__ = inBrowser ? patch : noop; // public mount method
-
-Vue.prototype.$mount = function (el, hydrating) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating);
-}; // devtools global hook
-
-/* istanbul ignore next */
-
-
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if ("development" !== 'production' && "development" !== 'test' && isChrome) {
-        console[console.info ? 'info' : 'log']('Download the Vue Devtools extension for a better development experience:\n' + '/~https://github.com/vuejs/vue-devtools');
-      }
-    }
-
-    if ("development" !== 'production' && "development" !== 'test' && config.productionTip !== false && 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);
-}
-/*  */
-
-
-var _default = Vue;
-exports.default = _default;
-},{}],"../node_modules/vue-router/dist/vue-router.esm.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-/**
-  * vue-router v3.0.1
-  * (c) 2017 Evan You
-  * @license MIT
-  */
-
-/*  */
-function assert(condition, message) {
-  if (!condition) {
-    throw new Error("[vue-router] " + message);
-  }
-}
-
-function warn(condition, message) {
-  if ("development" !== 'production' && !condition) {
-    typeof console !== 'undefined' && console.warn("[vue-router] " + message);
-  }
-}
-
-function isError(err) {
-  return Object.prototype.toString.call(err).indexOf('Error') > -1;
-}
-
-var View = {
-  name: 'router-view',
-  functional: true,
-  props: {
-    name: {
-      type: String,
-      default: 'default'
-    }
-  },
-  render: function render(_, ref) {
-    var props = ref.props;
-    var children = ref.children;
-    var parent = ref.parent;
-    var data = ref.data;
-    data.routerView = true; // directly use parent context's createElement() function
-    // so that components rendered by router-view can resolve named slots
-
-    var h = parent.$createElement;
-    var name = props.name;
-    var route = parent.$route;
-    var cache = parent._routerViewCache || (parent._routerViewCache = {}); // determine current view depth, also check to see if the tree
-    // has been toggled inactive but kept-alive.
-
-    var depth = 0;
-    var inactive = false;
-
-    while (parent && parent._routerRoot !== parent) {
-      if (parent.$vnode && parent.$vnode.data.routerView) {
-        depth++;
-      }
-
-      if (parent._inactive) {
-        inactive = true;
-      }
-
-      parent = parent.$parent;
-    }
-
-    data.routerViewDepth = depth; // render previous view if the tree is inactive and kept-alive
-
-    if (inactive) {
-      return h(cache[name], data, children);
-    }
-
-    var matched = route.matched[depth]; // render empty node if no matched route
-
-    if (!matched) {
-      cache[name] = null;
-      return h();
-    }
-
-    var component = cache[name] = matched.components[name]; // attach instance registration hook
-    // this will be called in the instance's injected lifecycle hooks
-
-    data.registerRouteInstance = function (vm, val) {
-      // val could be undefined for unregistration
-      var current = matched.instances[name];
-
-      if (val && current !== vm || !val && current === vm) {
-        matched.instances[name] = val;
-      }
-    } // also register instance in prepatch hook
-    // in case the same component instance is reused across different routes
-    ;
-
-    (data.hook || (data.hook = {})).prepatch = function (_, vnode) {
-      matched.instances[name] = vnode.componentInstance;
-    }; // resolve props
-
-
-    var propsToPass = data.props = resolveProps(route, matched.props && matched.props[name]);
-
-    if (propsToPass) {
-      // clone to prevent mutation
-      propsToPass = data.props = extend({}, propsToPass); // pass non-declared props as attrs
-
-      var attrs = data.attrs = data.attrs || {};
-
-      for (var key in propsToPass) {
-        if (!component.props || !(key in component.props)) {
-          attrs[key] = propsToPass[key];
-          delete propsToPass[key];
-        }
-      }
-    }
-
-    return h(component, data, children);
-  }
-};
-
-function resolveProps(route, config) {
-  switch (typeof config) {
-    case 'undefined':
-      return;
-
-    case 'object':
-      return config;
-
-    case 'function':
-      return config(route);
-
-    case 'boolean':
-      return config ? route.params : undefined;
-
-    default:
-      if ("development" !== 'production') {
-        warn(false, "props in \"" + route.path + "\" is a " + typeof config + ", " + "expecting an object, function or boolean.");
-      }
-
-  }
-}
-
-function extend(to, from) {
-  for (var key in from) {
-    to[key] = from[key];
-  }
-
-  return to;
-}
-/*  */
-
-
-var encodeReserveRE = /[!'()*]/g;
-
-var encodeReserveReplacer = function (c) {
-  return '%' + c.charCodeAt(0).toString(16);
-};
-
-var commaRE = /%2C/g; // fixed encodeURIComponent which is more conformant to RFC3986:
-// - escapes [!'()*]
-// - preserve commas
-
-var encode = function (str) {
-  return encodeURIComponent(str).replace(encodeReserveRE, encodeReserveReplacer).replace(commaRE, ',');
-};
-
-var decode = decodeURIComponent;
-
-function resolveQuery(query, extraQuery, _parseQuery) {
-  if (extraQuery === void 0) extraQuery = {};
-  var parse = _parseQuery || parseQuery;
-  var parsedQuery;
-
-  try {
-    parsedQuery = parse(query || '');
-  } catch (e) {
-    "development" !== 'production' && warn(false, e.message);
-    parsedQuery = {};
-  }
-
-  for (var key in extraQuery) {
-    parsedQuery[key] = extraQuery[key];
-  }
-
-  return parsedQuery;
-}
-
-function parseQuery(query) {
-  var res = {};
-  query = query.trim().replace(/^(\?|#|&)/, '');
-
-  if (!query) {
-    return res;
-  }
-
-  query.split('&').forEach(function (param) {
-    var parts = param.replace(/\+/g, ' ').split('=');
-    var key = decode(parts.shift());
-    var val = parts.length > 0 ? decode(parts.join('=')) : null;
-
-    if (res[key] === undefined) {
-      res[key] = val;
-    } else if (Array.isArray(res[key])) {
-      res[key].push(val);
-    } else {
-      res[key] = [res[key], val];
-    }
-  });
-  return res;
-}
-
-function stringifyQuery(obj) {
-  var res = obj ? Object.keys(obj).map(function (key) {
-    var val = obj[key];
-
-    if (val === undefined) {
-      return '';
-    }
-
-    if (val === null) {
-      return encode(key);
-    }
-
-    if (Array.isArray(val)) {
-      var result = [];
-      val.forEach(function (val2) {
-        if (val2 === undefined) {
-          return;
-        }
-
-        if (val2 === null) {
-          result.push(encode(key));
-        } else {
-          result.push(encode(key) + '=' + encode(val2));
-        }
-      });
-      return result.join('&');
-    }
-
-    return encode(key) + '=' + encode(val);
-  }).filter(function (x) {
-    return x.length > 0;
-  }).join('&') : null;
-  return res ? "?" + res : '';
-}
-/*  */
-
-
-var trailingSlashRE = /\/?$/;
-
-function createRoute(record, location, redirectedFrom, router) {
-  var stringifyQuery$$1 = router && router.options.stringifyQuery;
-  var query = location.query || {};
-
-  try {
-    query = clone(query);
-  } catch (e) {}
-
-  var route = {
-    name: location.name || record && record.name,
-    meta: record && record.meta || {},
-    path: location.path || '/',
-    hash: location.hash || '',
-    query: query,
-    params: location.params || {},
-    fullPath: getFullPath(location, stringifyQuery$$1),
-    matched: record ? formatMatch(record) : []
-  };
-
-  if (redirectedFrom) {
-    route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery$$1);
-  }
-
-  return Object.freeze(route);
-}
-
-function clone(value) {
-  if (Array.isArray(value)) {
-    return value.map(clone);
-  } else if (value && typeof value === 'object') {
-    var res = {};
-
-    for (var key in value) {
-      res[key] = clone(value[key]);
-    }
-
-    return res;
-  } else {
-    return value;
-  }
-} // the starting route that represents the initial state
-
-
-var START = createRoute(null, {
-  path: '/'
-});
-
-function formatMatch(record) {
-  var res = [];
-
-  while (record) {
-    res.unshift(record);
-    record = record.parent;
-  }
-
-  return res;
-}
-
-function getFullPath(ref, _stringifyQuery) {
-  var path = ref.path;
-  var query = ref.query;
-  if (query === void 0) query = {};
-  var hash = ref.hash;
-  if (hash === void 0) hash = '';
-  var stringify = _stringifyQuery || stringifyQuery;
-  return (path || '/') + stringify(query) + hash;
-}
-
-function isSameRoute(a, b) {
-  if (b === START) {
-    return a === b;
-  } else if (!b) {
-    return false;
-  } else if (a.path && b.path) {
-    return a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') && a.hash === b.hash && isObjectEqual(a.query, b.query);
-  } else if (a.name && b.name) {
-    return a.name === b.name && a.hash === b.hash && isObjectEqual(a.query, b.query) && isObjectEqual(a.params, b.params);
-  } else {
-    return false;
-  }
-}
-
-function isObjectEqual(a, b) {
-  if (a === void 0) a = {};
-  if (b === void 0) b = {}; // handle null value #1566
-
-  if (!a || !b) {
-    return a === b;
-  }
-
-  var aKeys = Object.keys(a);
-  var bKeys = Object.keys(b);
-
-  if (aKeys.length !== bKeys.length) {
-    return false;
-  }
-
-  return aKeys.every(function (key) {
-    var aVal = a[key];
-    var bVal = b[key]; // check nested equality
-
-    if (typeof aVal === 'object' && typeof bVal === 'object') {
-      return isObjectEqual(aVal, bVal);
-    }
-
-    return String(aVal) === String(bVal);
-  });
-}
-
-function isIncludedRoute(current, target) {
-  return current.path.replace(trailingSlashRE, '/').indexOf(target.path.replace(trailingSlashRE, '/')) === 0 && (!target.hash || current.hash === target.hash) && queryIncludes(current.query, target.query);
-}
-
-function queryIncludes(current, target) {
-  for (var key in target) {
-    if (!(key in current)) {
-      return false;
-    }
-  }
-
-  return true;
-}
-/*  */
-// work around weird flow bug
-
-
-var toTypes = [String, Object];
-var eventTypes = [String, Array];
-var Link = {
-  name: 'router-link',
-  props: {
-    to: {
-      type: toTypes,
-      required: true
-    },
-    tag: {
-      type: String,
-      default: 'a'
-    },
-    exact: Boolean,
-    append: Boolean,
-    replace: Boolean,
-    activeClass: String,
-    exactActiveClass: String,
-    event: {
-      type: eventTypes,
-      default: 'click'
-    }
-  },
-  render: function render(h) {
-    var this$1 = this;
-    var router = this.$router;
-    var current = this.$route;
-    var ref = router.resolve(this.to, current, this.append);
-    var location = ref.location;
-    var route = ref.route;
-    var href = ref.href;
-    var classes = {};
-    var globalActiveClass = router.options.linkActiveClass;
-    var globalExactActiveClass = router.options.linkExactActiveClass; // Support global empty active class
-
-    var activeClassFallback = globalActiveClass == null ? 'router-link-active' : globalActiveClass;
-    var exactActiveClassFallback = globalExactActiveClass == null ? 'router-link-exact-active' : globalExactActiveClass;
-    var activeClass = this.activeClass == null ? activeClassFallback : this.activeClass;
-    var exactActiveClass = this.exactActiveClass == null ? exactActiveClassFallback : this.exactActiveClass;
-    var compareTarget = location.path ? createRoute(null, location, null, router) : route;
-    classes[exactActiveClass] = isSameRoute(current, compareTarget);
-    classes[activeClass] = this.exact ? classes[exactActiveClass] : isIncludedRoute(current, compareTarget);
-
-    var handler = function (e) {
-      if (guardEvent(e)) {
-        if (this$1.replace) {
-          router.replace(location);
-        } else {
-          router.push(location);
-        }
-      }
-    };
-
-    var on = {
-      click: guardEvent
-    };
-
-    if (Array.isArray(this.event)) {
-      this.event.forEach(function (e) {
-        on[e] = handler;
-      });
-    } else {
-      on[this.event] = handler;
-    }
-
-    var data = {
-      class: classes
-    };
-
-    if (this.tag === 'a') {
-      data.on = on;
-      data.attrs = {
-        href: href
-      };
-    } else {
-      // find the first <a> child and apply listener and href
-      var a = findAnchor(this.$slots.default);
-
-      if (a) {
-        // in case the <a> is a static node
-        a.isStatic = false;
-        var extend = _Vue.util.extend;
-        var aData = a.data = extend({}, a.data);
-        aData.on = on;
-        var aAttrs = a.data.attrs = extend({}, a.data.attrs);
-        aAttrs.href = href;
-      } else {
-        // doesn't have <a> child, apply listener to self
-        data.on = on;
-      }
-    }
-
-    return h(this.tag, data, this.$slots.default);
-  }
-};
-
-function guardEvent(e) {
-  // don't redirect with control keys
-  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) {
-    return;
-  } // don't redirect when preventDefault called
-
-
-  if (e.defaultPrevented) {
-    return;
-  } // don't redirect on right click
-
-
-  if (e.button !== undefined && e.button !== 0) {
-    return;
-  } // don't redirect if `target="_blank"`
-
-
-  if (e.currentTarget && e.currentTarget.getAttribute) {
-    var target = e.currentTarget.getAttribute('target');
-
-    if (/\b_blank\b/i.test(target)) {
-      return;
-    }
-  } // this may be a Weex event which doesn't have this method
-
-
-  if (e.preventDefault) {
-    e.preventDefault();
-  }
-
-  return true;
-}
-
-function findAnchor(children) {
-  if (children) {
-    var child;
-
-    for (var i = 0; i < children.length; i++) {
-      child = children[i];
-
-      if (child.tag === 'a') {
-        return child;
-      }
-
-      if (child.children && (child = findAnchor(child.children))) {
-        return child;
-      }
-    }
-  }
-}
-
-var _Vue;
-
-function install(Vue) {
-  if (install.installed && _Vue === Vue) {
-    return;
-  }
-
-  install.installed = true;
-  _Vue = Vue;
-
-  var isDef = function (v) {
-    return v !== undefined;
-  };
-
-  var registerInstance = function (vm, callVal) {
-    var i = vm.$options._parentVnode;
-
-    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {
-      i(vm, callVal);
-    }
-  };
-
-  Vue.mixin({
-    beforeCreate: function beforeCreate() {
-      if (isDef(this.$options.router)) {
-        this._routerRoot = this;
-        this._router = this.$options.router;
-
-        this._router.init(this);
-
-        Vue.util.defineReactive(this, '_route', this._router.history.current);
-      } else {
-        this._routerRoot = this.$parent && this.$parent._routerRoot || this;
-      }
-
-      registerInstance(this, this);
-    },
-    destroyed: function destroyed() {
-      registerInstance(this);
-    }
-  });
-  Object.defineProperty(Vue.prototype, '$router', {
-    get: function get() {
-      return this._routerRoot._router;
-    }
-  });
-  Object.defineProperty(Vue.prototype, '$route', {
-    get: function get() {
-      return this._routerRoot._route;
-    }
-  });
-  Vue.component('router-view', View);
-  Vue.component('router-link', Link);
-  var strats = Vue.config.optionMergeStrategies; // use the same hook merging strategy for route hooks
-
-  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created;
-}
-/*  */
-
-
-var inBrowser = typeof window !== 'undefined';
-/*  */
-
-function resolvePath(relative, base, append) {
-  var firstChar = relative.charAt(0);
-
-  if (firstChar === '/') {
-    return relative;
-  }
-
-  if (firstChar === '?' || firstChar === '#') {
-    return base + relative;
-  }
-
-  var stack = base.split('/'); // remove trailing segment if:
-  // - not appending
-  // - appending to trailing slash (last segment is empty)
-
-  if (!append || !stack[stack.length - 1]) {
-    stack.pop();
-  } // resolve relative path
-
-
-  var segments = relative.replace(/^\//, '').split('/');
-
-  for (var i = 0; i < segments.length; i++) {
-    var segment = segments[i];
-
-    if (segment === '..') {
-      stack.pop();
-    } else if (segment !== '.') {
-      stack.push(segment);
-    }
-  } // ensure leading slash
-
-
-  if (stack[0] !== '') {
-    stack.unshift('');
-  }
-
-  return stack.join('/');
-}
-
-function parsePath(path) {
-  var hash = '';
-  var query = '';
-  var hashIndex = path.indexOf('#');
-
-  if (hashIndex >= 0) {
-    hash = path.slice(hashIndex);
-    path = path.slice(0, hashIndex);
-  }
-
-  var queryIndex = path.indexOf('?');
-
-  if (queryIndex >= 0) {
-    query = path.slice(queryIndex + 1);
-    path = path.slice(0, queryIndex);
-  }
-
-  return {
-    path: path,
-    query: query,
-    hash: hash
-  };
-}
-
-function cleanPath(path) {
-  return path.replace(/\/\//g, '/');
-}
-
-var isarray = Array.isArray || function (arr) {
-  return Object.prototype.toString.call(arr) == '[object Array]';
-};
-/**
- * Expose `pathToRegexp`.
- */
-
-
-var pathToRegexp_1 = pathToRegexp;
-var parse_1 = parse;
-var compile_1 = compile;
-var tokensToFunction_1 = tokensToFunction;
-var tokensToRegExp_1 = tokensToRegExp;
-/**
- * The main path matching regexp utility.
- *
- * @type {RegExp}
- */
-
-var PATH_REGEXP = new RegExp([// Match escaped characters that would otherwise appear in future matches.
-// This allows the user to escape special characters that won't transform.
-'(\\\\.)', // Match Express-style parameters and un-named parameters with a prefix
-// and optional suffixes. Matches appear as:
-//
-// "/:test(\\d+)?" => ["/", "test", "\d+", undefined, "?", undefined]
-// "/route(\\d+)"  => [undefined, undefined, undefined, "\d+", undefined, undefined]
-// "/*"            => ["/", undefined, undefined, undefined, undefined, "*"]
-'([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))'].join('|'), 'g');
-/**
- * Parse a string for the raw tokens.
- *
- * @param  {string}  str
- * @param  {Object=} options
- * @return {!Array}
- */
-
-function parse(str, options) {
-  var tokens = [];
-  var key = 0;
-  var index = 0;
-  var path = '';
-  var defaultDelimiter = options && options.delimiter || '/';
-  var res;
-
-  while ((res = PATH_REGEXP.exec(str)) != null) {
-    var m = res[0];
-    var escaped = res[1];
-    var offset = res.index;
-    path += str.slice(index, offset);
-    index = offset + m.length; // Ignore already escaped sequences.
-
-    if (escaped) {
-      path += escaped[1];
-      continue;
-    }
-
-    var next = str[index];
-    var prefix = res[2];
-    var name = res[3];
-    var capture = res[4];
-    var group = res[5];
-    var modifier = res[6];
-    var asterisk = res[7]; // Push the current path onto the tokens.
-
-    if (path) {
-      tokens.push(path);
-      path = '';
-    }
-
-    var partial = prefix != null && next != null && next !== prefix;
-    var repeat = modifier === '+' || modifier === '*';
-    var optional = modifier === '?' || modifier === '*';
-    var delimiter = res[2] || defaultDelimiter;
-    var pattern = capture || group;
-    tokens.push({
-      name: name || key++,
-      prefix: prefix || '',
-      delimiter: delimiter,
-      optional: optional,
-      repeat: repeat,
-      partial: partial,
-      asterisk: !!asterisk,
-      pattern: pattern ? escapeGroup(pattern) : asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?'
-    });
-  } // Match any characters still remaining.
-
-
-  if (index < str.length) {
-    path += str.substr(index);
-  } // If the path exists, push it onto the end.
-
-
-  if (path) {
-    tokens.push(path);
-  }
-
-  return tokens;
-}
-/**
- * Compile a string to a template function for the path.
- *
- * @param  {string}             str
- * @param  {Object=}            options
- * @return {!function(Object=, Object=)}
- */
-
-
-function compile(str, options) {
-  return tokensToFunction(parse(str, options));
-}
-/**
- * Prettier encoding of URI path segments.
- *
- * @param  {string}
- * @return {string}
- */
-
-
-function encodeURIComponentPretty(str) {
-  return encodeURI(str).replace(/[\/?#]/g, function (c) {
-    return '%' + c.charCodeAt(0).toString(16).toUpperCase();
-  });
-}
-/**
- * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.
- *
- * @param  {string}
- * @return {string}
- */
-
-
-function encodeAsterisk(str) {
-  return encodeURI(str).replace(/[?#]/g, function (c) {
-    return '%' + c.charCodeAt(0).toString(16).toUpperCase();
-  });
-}
-/**
- * Expose a method for transforming tokens into the path function.
- */
-
-
-function tokensToFunction(tokens) {
-  // Compile all the tokens into regexps.
-  var matches = new Array(tokens.length); // Compile all the patterns before compilation.
-
-  for (var i = 0; i < tokens.length; i++) {
-    if (typeof tokens[i] === 'object') {
-      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$');
-    }
-  }
-
-  return function (obj, opts) {
-    var path = '';
-    var data = obj || {};
-    var options = opts || {};
-    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;
-
-    for (var i = 0; i < tokens.length; i++) {
-      var token = tokens[i];
-
-      if (typeof token === 'string') {
-        path += token;
-        continue;
-      }
-
-      var value = data[token.name];
-      var segment;
-
-      if (value == null) {
-        if (token.optional) {
-          // Prepend partial segment prefixes.
-          if (token.partial) {
-            path += token.prefix;
-          }
-
-          continue;
-        } else {
-          throw new TypeError('Expected "' + token.name + '" to be defined');
-        }
-      }
-
-      if (isarray(value)) {
-        if (!token.repeat) {
-          throw new TypeError('Expected "' + token.name + '" to not repeat, but received `' + JSON.stringify(value) + '`');
-        }
-
-        if (value.length === 0) {
-          if (token.optional) {
-            continue;
-          } else {
-            throw new TypeError('Expected "' + token.name + '" to not be empty');
-          }
-        }
-
-        for (var j = 0; j < value.length; j++) {
-          segment = encode(value[j]);
-
-          if (!matches[i].test(segment)) {
-            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '", but received `' + JSON.stringify(segment) + '`');
-          }
-
-          path += (j === 0 ? token.prefix : token.delimiter) + segment;
-        }
-
-        continue;
-      }
-
-      segment = token.asterisk ? encodeAsterisk(value) : encode(value);
-
-      if (!matches[i].test(segment)) {
-        throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but received "' + segment + '"');
-      }
-
-      path += token.prefix + segment;
-    }
-
-    return path;
-  };
-}
-/**
- * Escape a regular expression string.
- *
- * @param  {string} str
- * @return {string}
- */
-
-
-function escapeString(str) {
-  return str.replace(/([.+*?=^!:${}()[\]|\/\\])/g, '\\$1');
-}
-/**
- * Escape the capturing group by escaping special characters and meaning.
- *
- * @param  {string} group
- * @return {string}
- */
-
-
-function escapeGroup(group) {
-  return group.replace(/([=!:$\/()])/g, '\\$1');
-}
-/**
- * Attach the keys as a property of the regexp.
- *
- * @param  {!RegExp} re
- * @param  {Array}   keys
- * @return {!RegExp}
- */
-
-
-function attachKeys(re, keys) {
-  re.keys = keys;
-  return re;
-}
-/**
- * Get the flags for a regexp from the options.
- *
- * @param  {Object} options
- * @return {string}
- */
-
-
-function flags(options) {
-  return options.sensitive ? '' : 'i';
-}
-/**
- * Pull out keys from a regexp.
- *
- * @param  {!RegExp} path
- * @param  {!Array}  keys
- * @return {!RegExp}
- */
-
-
-function regexpToRegexp(path, keys) {
-  // Use a negative lookahead to match only capturing groups.
-  var groups = path.source.match(/\((?!\?)/g);
-
-  if (groups) {
-    for (var i = 0; i < groups.length; i++) {
-      keys.push({
-        name: i,
-        prefix: null,
-        delimiter: null,
-        optional: false,
-        repeat: false,
-        partial: false,
-        asterisk: false,
-        pattern: null
-      });
-    }
-  }
-
-  return attachKeys(path, keys);
-}
-/**
- * Transform an array into a regexp.
- *
- * @param  {!Array}  path
- * @param  {Array}   keys
- * @param  {!Object} options
- * @return {!RegExp}
- */
-
-
-function arrayToRegexp(path, keys, options) {
-  var parts = [];
-
-  for (var i = 0; i < path.length; i++) {
-    parts.push(pathToRegexp(path[i], keys, options).source);
-  }
-
-  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));
-  return attachKeys(regexp, keys);
-}
-/**
- * Create a path regexp from string input.
- *
- * @param  {string}  path
- * @param  {!Array}  keys
- * @param  {!Object} options
- * @return {!RegExp}
- */
-
-
-function stringToRegexp(path, keys, options) {
-  return tokensToRegExp(parse(path, options), keys, options);
-}
-/**
- * Expose a function for taking tokens and returning a RegExp.
- *
- * @param  {!Array}          tokens
- * @param  {(Array|Object)=} keys
- * @param  {Object=}         options
- * @return {!RegExp}
- */
-
-
-function tokensToRegExp(tokens, keys, options) {
-  if (!isarray(keys)) {
-    options =
-    /** @type {!Object} */
-    keys || options;
-    keys = [];
-  }
-
-  options = options || {};
-  var strict = options.strict;
-  var end = options.end !== false;
-  var route = ''; // Iterate over the tokens and create our regexp string.
-
-  for (var i = 0; i < tokens.length; i++) {
-    var token = tokens[i];
-
-    if (typeof token === 'string') {
-      route += escapeString(token);
-    } else {
-      var prefix = escapeString(token.prefix);
-      var capture = '(?:' + token.pattern + ')';
-      keys.push(token);
-
-      if (token.repeat) {
-        capture += '(?:' + prefix + capture + ')*';
-      }
-
-      if (token.optional) {
-        if (!token.partial) {
-          capture = '(?:' + prefix + '(' + capture + '))?';
-        } else {
-          capture = prefix + '(' + capture + ')?';
-        }
-      } else {
-        capture = prefix + '(' + capture + ')';
-      }
-
-      route += capture;
-    }
-  }
-
-  var delimiter = escapeString(options.delimiter || '/');
-  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter; // In non-strict mode we allow a slash at the end of match. If the path to
-  // match already ends with a slash, we remove it for consistency. The slash
-  // is valid at the end of a path match, not in the middle. This is important
-  // in non-ending mode, where "/test/" shouldn't match "/test//route".
-
-  if (!strict) {
-    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';
-  }
-
-  if (end) {
-    route += '$';
-  } else {
-    // In non-ending mode, we need the capturing groups to match as much as
-    // possible by using a positive lookahead to the end or next path segment.
-    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';
-  }
-
-  return attachKeys(new RegExp('^' + route, flags(options)), keys);
-}
-/**
- * Normalize the given path string, returning a regular expression.
- *
- * An empty array can be passed in for the keys, which will hold the
- * placeholder key descriptions. For example, using `/user/:id`, `keys` will
- * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
- *
- * @param  {(string|RegExp|Array)} path
- * @param  {(Array|Object)=}       keys
- * @param  {Object=}               options
- * @return {!RegExp}
- */
-
-
-function pathToRegexp(path, keys, options) {
-  if (!isarray(keys)) {
-    options =
-    /** @type {!Object} */
-    keys || options;
-    keys = [];
-  }
-
-  options = options || {};
-
-  if (path instanceof RegExp) {
-    return regexpToRegexp(path,
-    /** @type {!Array} */
-    keys);
-  }
-
-  if (isarray(path)) {
-    return arrayToRegexp(
-    /** @type {!Array} */
-    path,
-    /** @type {!Array} */
-    keys, options);
-  }
-
-  return stringToRegexp(
-  /** @type {string} */
-  path,
-  /** @type {!Array} */
-  keys, options);
-}
-
-pathToRegexp_1.parse = parse_1;
-pathToRegexp_1.compile = compile_1;
-pathToRegexp_1.tokensToFunction = tokensToFunction_1;
-pathToRegexp_1.tokensToRegExp = tokensToRegExp_1;
-/*  */
-// $flow-disable-line
-
-var regexpCompileCache = Object.create(null);
-
-function fillParams(path, params, routeMsg) {
-  try {
-    var filler = regexpCompileCache[path] || (regexpCompileCache[path] = pathToRegexp_1.compile(path));
-    return filler(params || {}, {
-      pretty: true
-    });
-  } catch (e) {
-    if ("development" !== 'production') {
-      warn(false, "missing param for " + routeMsg + ": " + e.message);
-    }
-
-    return '';
-  }
-}
-/*  */
-
-
-function createRouteMap(routes, oldPathList, oldPathMap, oldNameMap) {
-  // the path list is used to control path matching priority
-  var pathList = oldPathList || []; // $flow-disable-line
-
-  var pathMap = oldPathMap || Object.create(null); // $flow-disable-line
-
-  var nameMap = oldNameMap || Object.create(null);
-  routes.forEach(function (route) {
-    addRouteRecord(pathList, pathMap, nameMap, route);
-  }); // ensure wildcard routes are always at the end
-
-  for (var i = 0, l = pathList.length; i < l; i++) {
-    if (pathList[i] === '*') {
-      pathList.push(pathList.splice(i, 1)[0]);
-      l--;
-      i--;
-    }
-  }
-
-  return {
-    pathList: pathList,
-    pathMap: pathMap,
-    nameMap: nameMap
-  };
-}
-
-function addRouteRecord(pathList, pathMap, nameMap, route, parent, matchAs) {
-  var path = route.path;
-  var name = route.name;
-
-  if ("development" !== 'production') {
-    assert(path != null, "\"path\" is required in a route configuration.");
-    assert(typeof route.component !== 'string', "route config \"component\" for path: " + String(path || name) + " cannot be a " + "string id. Use an actual component instead.");
-  }
-
-  var pathToRegexpOptions = route.pathToRegexpOptions || {};
-  var normalizedPath = normalizePath(path, parent, pathToRegexpOptions.strict);
-
-  if (typeof route.caseSensitive === 'boolean') {
-    pathToRegexpOptions.sensitive = route.caseSensitive;
-  }
-
-  var record = {
-    path: normalizedPath,
-    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),
-    components: route.components || {
-      default: route.component
-    },
-    instances: {},
-    name: name,
-    parent: parent,
-    matchAs: matchAs,
-    redirect: route.redirect,
-    beforeEnter: route.beforeEnter,
-    meta: route.meta || {},
-    props: route.props == null ? {} : route.components ? route.props : {
-      default: route.props
-    }
-  };
-
-  if (route.children) {
-    // Warn if route is named, does not redirect and has a default child route.
-    // If users navigate to this route by name, the default child will
-    // not be rendered (GH Issue #629)
-    if ("development" !== 'production') {
-      if (route.name && !route.redirect && route.children.some(function (child) {
-        return /^\/?$/.test(child.path);
-      })) {
-        warn(false, "Named Route '" + route.name + "' has a default child route. " + "When navigating to this named route (:to=\"{name: '" + route.name + "'\"), " + "the default child route will not be rendered. Remove the name from " + "this route and use the name of the default child route for named " + "links instead.");
-      }
-    }
-
-    route.children.forEach(function (child) {
-      var childMatchAs = matchAs ? cleanPath(matchAs + "/" + child.path) : undefined;
-      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);
-    });
-  }
-
-  if (route.alias !== undefined) {
-    var aliases = Array.isArray(route.alias) ? route.alias : [route.alias];
-    aliases.forEach(function (alias) {
-      var aliasRoute = {
-        path: alias,
-        children: route.children
-      };
-      addRouteRecord(pathList, pathMap, nameMap, aliasRoute, parent, record.path || '/' // matchAs
-      );
-    });
-  }
-
-  if (!pathMap[record.path]) {
-    pathList.push(record.path);
-    pathMap[record.path] = record;
-  }
-
-  if (name) {
-    if (!nameMap[name]) {
-      nameMap[name] = record;
-    } else if ("development" !== 'production' && !matchAs) {
-      warn(false, "Duplicate named routes definition: " + "{ name: \"" + name + "\", path: \"" + record.path + "\" }");
-    }
-  }
-}
-
-function compileRouteRegex(path, pathToRegexpOptions) {
-  var regex = pathToRegexp_1(path, [], pathToRegexpOptions);
-
-  if ("development" !== 'production') {
-    var keys = Object.create(null);
-    regex.keys.forEach(function (key) {
-      warn(!keys[key.name], "Duplicate param keys in route with path: \"" + path + "\"");
-      keys[key.name] = true;
-    });
-  }
-
-  return regex;
-}
-
-function normalizePath(path, parent, strict) {
-  if (!strict) {
-    path = path.replace(/\/$/, '');
-  }
-
-  if (path[0] === '/') {
-    return path;
-  }
-
-  if (parent == null) {
-    return path;
-  }
-
-  return cleanPath(parent.path + "/" + path);
-}
-/*  */
-
-
-function normalizeLocation(raw, current, append, router) {
-  var next = typeof raw === 'string' ? {
-    path: raw
-  } : raw; // named target
-
-  if (next.name || next._normalized) {
-    return next;
-  } // relative params
-
-
-  if (!next.path && next.params && current) {
-    next = assign({}, next);
-    next._normalized = true;
-    var params = assign(assign({}, current.params), next.params);
-
-    if (current.name) {
-      next.name = current.name;
-      next.params = params;
-    } else if (current.matched.length) {
-      var rawPath = current.matched[current.matched.length - 1].path;
-      next.path = fillParams(rawPath, params, "path " + current.path);
-    } else if ("development" !== 'production') {
-      warn(false, "relative params navigation requires a current route.");
-    }
-
-    return next;
-  }
-
-  var parsedPath = parsePath(next.path || '');
-  var basePath = current && current.path || '/';
-  var path = parsedPath.path ? resolvePath(parsedPath.path, basePath, append || next.append) : basePath;
-  var query = resolveQuery(parsedPath.query, next.query, router && router.options.parseQuery);
-  var hash = next.hash || parsedPath.hash;
-
-  if (hash && hash.charAt(0) !== '#') {
-    hash = "#" + hash;
-  }
-
-  return {
-    _normalized: true,
-    path: path,
-    query: query,
-    hash: hash
-  };
-}
-
-function assign(a, b) {
-  for (var key in b) {
-    a[key] = b[key];
-  }
-
-  return a;
-}
-/*  */
-
-
-function createMatcher(routes, router) {
-  var ref = createRouteMap(routes);
-  var pathList = ref.pathList;
-  var pathMap = ref.pathMap;
-  var nameMap = ref.nameMap;
-
-  function addRoutes(routes) {
-    createRouteMap(routes, pathList, pathMap, nameMap);
-  }
-
-  function match(raw, currentRoute, redirectedFrom) {
-    var location = normalizeLocation(raw, currentRoute, false, router);
-    var name = location.name;
-
-    if (name) {
-      var record = nameMap[name];
-
-      if ("development" !== 'production') {
-        warn(record, "Route with name '" + name + "' does not exist");
-      }
-
-      if (!record) {
-        return _createRoute(null, location);
-      }
-
-      var paramNames = record.regex.keys.filter(function (key) {
-        return !key.optional;
-      }).map(function (key) {
-        return key.name;
-      });
-
-      if (typeof location.params !== 'object') {
-        location.params = {};
-      }
-
-      if (currentRoute && typeof currentRoute.params === 'object') {
-        for (var key in currentRoute.params) {
-          if (!(key in location.params) && paramNames.indexOf(key) > -1) {
-            location.params[key] = currentRoute.params[key];
-          }
-        }
-      }
-
-      if (record) {
-        location.path = fillParams(record.path, location.params, "named route \"" + name + "\"");
-        return _createRoute(record, location, redirectedFrom);
-      }
-    } else if (location.path) {
-      location.params = {};
-
-      for (var i = 0; i < pathList.length; i++) {
-        var path = pathList[i];
-        var record$1 = pathMap[path];
-
-        if (matchRoute(record$1.regex, location.path, location.params)) {
-          return _createRoute(record$1, location, redirectedFrom);
-        }
-      }
-    } // no match
-
-
-    return _createRoute(null, location);
-  }
-
-  function redirect(record, location) {
-    var originalRedirect = record.redirect;
-    var redirect = typeof originalRedirect === 'function' ? originalRedirect(createRoute(record, location, null, router)) : originalRedirect;
-
-    if (typeof redirect === 'string') {
-      redirect = {
-        path: redirect
-      };
-    }
-
-    if (!redirect || typeof redirect !== 'object') {
-      if ("development" !== 'production') {
-        warn(false, "invalid redirect option: " + JSON.stringify(redirect));
-      }
-
-      return _createRoute(null, location);
-    }
-
-    var re = redirect;
-    var name = re.name;
-    var path = re.path;
-    var query = location.query;
-    var hash = location.hash;
-    var params = location.params;
-    query = re.hasOwnProperty('query') ? re.query : query;
-    hash = re.hasOwnProperty('hash') ? re.hash : hash;
-    params = re.hasOwnProperty('params') ? re.params : params;
-
-    if (name) {
-      // resolved named direct
-      var targetRecord = nameMap[name];
-
-      if ("development" !== 'production') {
-        assert(targetRecord, "redirect failed: named route \"" + name + "\" not found.");
-      }
-
-      return match({
-        _normalized: true,
-        name: name,
-        query: query,
-        hash: hash,
-        params: params
-      }, undefined, location);
-    } else if (path) {
-      // 1. resolve relative redirect
-      var rawPath = resolveRecordPath(path, record); // 2. resolve params
-
-      var resolvedPath = fillParams(rawPath, params, "redirect route with path \"" + rawPath + "\""); // 3. rematch with existing query and hash
-
-      return match({
-        _normalized: true,
-        path: resolvedPath,
-        query: query,
-        hash: hash
-      }, undefined, location);
-    } else {
-      if ("development" !== 'production') {
-        warn(false, "invalid redirect option: " + JSON.stringify(redirect));
-      }
-
-      return _createRoute(null, location);
-    }
-  }
-
-  function alias(record, location, matchAs) {
-    var aliasedPath = fillParams(matchAs, location.params, "aliased route with path \"" + matchAs + "\"");
-    var aliasedMatch = match({
-      _normalized: true,
-      path: aliasedPath
-    });
-
-    if (aliasedMatch) {
-      var matched = aliasedMatch.matched;
-      var aliasedRecord = matched[matched.length - 1];
-      location.params = aliasedMatch.params;
-      return _createRoute(aliasedRecord, location);
-    }
-
-    return _createRoute(null, location);
-  }
-
-  function _createRoute(record, location, redirectedFrom) {
-    if (record && record.redirect) {
-      return redirect(record, redirectedFrom || location);
-    }
-
-    if (record && record.matchAs) {
-      return alias(record, location, record.matchAs);
-    }
-
-    return createRoute(record, location, redirectedFrom, router);
-  }
-
-  return {
-    match: match,
-    addRoutes: addRoutes
-  };
-}
-
-function matchRoute(regex, path, params) {
-  var m = path.match(regex);
-
-  if (!m) {
-    return false;
-  } else if (!params) {
-    return true;
-  }
-
-  for (var i = 1, len = m.length; i < len; ++i) {
-    var key = regex.keys[i - 1];
-    var val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i];
-
-    if (key) {
-      params[key.name] = val;
-    }
-  }
-
-  return true;
-}
-
-function resolveRecordPath(path, record) {
-  return resolvePath(path, record.parent ? record.parent.path : '/', true);
-}
-/*  */
-
-
-var positionStore = Object.create(null);
-
-function setupScroll() {
-  // Fix for #1585 for Firefox
-  window.history.replaceState({
-    key: getStateKey()
-  }, '');
-  window.addEventListener('popstate', function (e) {
-    saveScrollPosition();
-
-    if (e.state && e.state.key) {
-      setStateKey(e.state.key);
-    }
-  });
-}
-
-function handleScroll(router, to, from, isPop) {
-  if (!router.app) {
-    return;
-  }
-
-  var behavior = router.options.scrollBehavior;
-
-  if (!behavior) {
-    return;
-  }
-
-  if ("development" !== 'production') {
-    assert(typeof behavior === 'function', "scrollBehavior must be a function");
-  } // wait until re-render finishes before scrolling
-
-
-  router.app.$nextTick(function () {
-    var position = getScrollPosition();
-    var shouldScroll = behavior(to, from, isPop ? position : null);
-
-    if (!shouldScroll) {
-      return;
-    }
-
-    if (typeof shouldScroll.then === 'function') {
-      shouldScroll.then(function (shouldScroll) {
-        scrollToPosition(shouldScroll, position);
-      }).catch(function (err) {
-        if ("development" !== 'production') {
-          assert(false, err.toString());
-        }
-      });
-    } else {
-      scrollToPosition(shouldScroll, position);
-    }
-  });
-}
-
-function saveScrollPosition() {
-  var key = getStateKey();
-
-  if (key) {
-    positionStore[key] = {
-      x: window.pageXOffset,
-      y: window.pageYOffset
-    };
-  }
-}
-
-function getScrollPosition() {
-  var key = getStateKey();
-
-  if (key) {
-    return positionStore[key];
-  }
-}
-
-function getElementPosition(el, offset) {
-  var docEl = document.documentElement;
-  var docRect = docEl.getBoundingClientRect();
-  var elRect = el.getBoundingClientRect();
-  return {
-    x: elRect.left - docRect.left - offset.x,
-    y: elRect.top - docRect.top - offset.y
-  };
-}
-
-function isValidPosition(obj) {
-  return isNumber(obj.x) || isNumber(obj.y);
-}
-
-function normalizePosition(obj) {
-  return {
-    x: isNumber(obj.x) ? obj.x : window.pageXOffset,
-    y: isNumber(obj.y) ? obj.y : window.pageYOffset
-  };
-}
-
-function normalizeOffset(obj) {
-  return {
-    x: isNumber(obj.x) ? obj.x : 0,
-    y: isNumber(obj.y) ? obj.y : 0
-  };
-}
-
-function isNumber(v) {
-  return typeof v === 'number';
-}
-
-function scrollToPosition(shouldScroll, position) {
-  var isObject = typeof shouldScroll === 'object';
-
-  if (isObject && typeof shouldScroll.selector === 'string') {
-    var el = document.querySelector(shouldScroll.selector);
-
-    if (el) {
-      var offset = shouldScroll.offset && typeof shouldScroll.offset === 'object' ? shouldScroll.offset : {};
-      offset = normalizeOffset(offset);
-      position = getElementPosition(el, offset);
-    } else if (isValidPosition(shouldScroll)) {
-      position = normalizePosition(shouldScroll);
-    }
-  } else if (isObject && isValidPosition(shouldScroll)) {
-    position = normalizePosition(shouldScroll);
-  }
-
-  if (position) {
-    window.scrollTo(position.x, position.y);
-  }
-}
-/*  */
-
-
-var supportsPushState = inBrowser && function () {
-  var ua = window.navigator.userAgent;
-
-  if ((ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) && ua.indexOf('Mobile Safari') !== -1 && ua.indexOf('Chrome') === -1 && ua.indexOf('Windows Phone') === -1) {
-    return false;
-  }
-
-  return window.history && 'pushState' in window.history;
-}(); // use User Timing api (if present) for more accurate key precision
-
-
-var Time = inBrowser && window.performance && window.performance.now ? window.performance : Date;
-
-var _key = genKey();
-
-function genKey() {
-  return Time.now().toFixed(3);
-}
-
-function getStateKey() {
-  return _key;
-}
-
-function setStateKey(key) {
-  _key = key;
-}
-
-function pushState(url, replace) {
-  saveScrollPosition(); // try...catch the pushState call to get around Safari
-  // DOM Exception 18 where it limits to 100 pushState calls
-
-  var history = window.history;
-
-  try {
-    if (replace) {
-      history.replaceState({
-        key: _key
-      }, '', url);
-    } else {
-      _key = genKey();
-      history.pushState({
-        key: _key
-      }, '', url);
-    }
-  } catch (e) {
-    window.location[replace ? 'replace' : 'assign'](url);
-  }
-}
-
-function replaceState(url) {
-  pushState(url, true);
-}
-/*  */
-
-
-function runQueue(queue, fn, cb) {
-  var step = function (index) {
-    if (index >= queue.length) {
-      cb();
-    } else {
-      if (queue[index]) {
-        fn(queue[index], function () {
-          step(index + 1);
-        });
-      } else {
-        step(index + 1);
-      }
-    }
-  };
-
-  step(0);
-}
-/*  */
-
-
-function resolveAsyncComponents(matched) {
-  return function (to, from, next) {
-    var hasAsync = false;
-    var pending = 0;
-    var error = null;
-    flatMapComponents(matched, function (def, _, match, key) {
-      // if it's a function and doesn't have cid attached,
-      // assume it's an async component resolve function.
-      // we are not using Vue's default async resolving mechanism because
-      // we want to halt the navigation until the incoming component has been
-      // resolved.
-      if (typeof def === 'function' && def.cid === undefined) {
-        hasAsync = true;
-        pending++;
-        var resolve = once(function (resolvedDef) {
-          if (isESModule(resolvedDef)) {
-            resolvedDef = resolvedDef.default;
-          } // save resolved on async factory in case it's used elsewhere
-
-
-          def.resolved = typeof resolvedDef === 'function' ? resolvedDef : _Vue.extend(resolvedDef);
-          match.components[key] = resolvedDef;
-          pending--;
-
-          if (pending <= 0) {
-            next();
-          }
-        });
-        var reject = once(function (reason) {
-          var msg = "Failed to resolve async component " + key + ": " + reason;
-          "development" !== 'production' && warn(false, msg);
-
-          if (!error) {
-            error = isError(reason) ? reason : new Error(msg);
-            next(error);
-          }
-        });
-        var res;
-
-        try {
-          res = def(resolve, reject);
-        } catch (e) {
-          reject(e);
-        }
-
-        if (res) {
-          if (typeof res.then === 'function') {
-            res.then(resolve, reject);
-          } else {
-            // new syntax in Vue 2.3
-            var comp = res.component;
-
-            if (comp && typeof comp.then === 'function') {
-              comp.then(resolve, reject);
-            }
-          }
-        }
-      }
-    });
-
-    if (!hasAsync) {
-      next();
-    }
-  };
-}
-
-function flatMapComponents(matched, fn) {
-  return flatten(matched.map(function (m) {
-    return Object.keys(m.components).map(function (key) {
-      return fn(m.components[key], m.instances[key], m, key);
-    });
-  }));
-}
-
-function flatten(arr) {
-  return Array.prototype.concat.apply([], arr);
-}
-
-var hasSymbol = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';
-
-function isESModule(obj) {
-  return obj.__esModule || hasSymbol && obj[Symbol.toStringTag] === 'Module';
-} // in Webpack 2, require.ensure now also returns a Promise
-// so the resolve/reject functions may get called an extra time
-// if the user uses an arrow function shorthand that happens to
-// return that Promise.
-
-
-function once(fn) {
-  var called = false;
-  return function () {
-    var args = [],
-        len = arguments.length;
-
-    while (len--) args[len] = arguments[len];
-
-    if (called) {
-      return;
-    }
-
-    called = true;
-    return fn.apply(this, args);
-  };
-}
-/*  */
-
-
-var History = function History(router, base) {
-  this.router = router;
-  this.base = normalizeBase(base); // start with a route object that stands for "nowhere"
-
-  this.current = START;
-  this.pending = null;
-  this.ready = false;
-  this.readyCbs = [];
-  this.readyErrorCbs = [];
-  this.errorCbs = [];
-};
-
-History.prototype.listen = function listen(cb) {
-  this.cb = cb;
-};
-
-History.prototype.onReady = function onReady(cb, errorCb) {
-  if (this.ready) {
-    cb();
-  } else {
-    this.readyCbs.push(cb);
-
-    if (errorCb) {
-      this.readyErrorCbs.push(errorCb);
-    }
-  }
-};
-
-History.prototype.onError = function onError(errorCb) {
-  this.errorCbs.push(errorCb);
-};
-
-History.prototype.transitionTo = function transitionTo(location, onComplete, onAbort) {
-  var this$1 = this;
-  var route = this.router.match(location, this.current);
-  this.confirmTransition(route, function () {
-    this$1.updateRoute(route);
-    onComplete && onComplete(route);
-    this$1.ensureURL(); // fire ready cbs once
-
-    if (!this$1.ready) {
-      this$1.ready = true;
-      this$1.readyCbs.forEach(function (cb) {
-        cb(route);
-      });
-    }
-  }, function (err) {
-    if (onAbort) {
-      onAbort(err);
-    }
-
-    if (err && !this$1.ready) {
-      this$1.ready = true;
-      this$1.readyErrorCbs.forEach(function (cb) {
-        cb(err);
-      });
-    }
-  });
-};
-
-History.prototype.confirmTransition = function confirmTransition(route, onComplete, onAbort) {
-  var this$1 = this;
-  var current = this.current;
-
-  var abort = function (err) {
-    if (isError(err)) {
-      if (this$1.errorCbs.length) {
-        this$1.errorCbs.forEach(function (cb) {
-          cb(err);
-        });
-      } else {
-        warn(false, 'uncaught error during route navigation:');
-        console.error(err);
-      }
-    }
-
-    onAbort && onAbort(err);
-  };
-
-  if (isSameRoute(route, current) && // in the case the route map has been dynamically appended to
-  route.matched.length === current.matched.length) {
-    this.ensureURL();
-    return abort();
-  }
-
-  var ref = resolveQueue(this.current.matched, route.matched);
-  var updated = ref.updated;
-  var deactivated = ref.deactivated;
-  var activated = ref.activated;
-  var queue = [].concat( // in-component leave guards
-  extractLeaveGuards(deactivated), // global before hooks
-  this.router.beforeHooks, // in-component update hooks
-  extractUpdateHooks(updated), // in-config enter guards
-  activated.map(function (m) {
-    return m.beforeEnter;
-  }), // async components
-  resolveAsyncComponents(activated));
-  this.pending = route;
-
-  var iterator = function (hook, next) {
-    if (this$1.pending !== route) {
-      return abort();
-    }
-
-    try {
-      hook(route, current, function (to) {
-        if (to === false || isError(to)) {
-          // next(false) -> abort navigation, ensure current URL
-          this$1.ensureURL(true);
-          abort(to);
-        } else if (typeof to === 'string' || typeof to === 'object' && (typeof to.path === 'string' || typeof to.name === 'string')) {
-          // next('/') or next({ path: '/' }) -> redirect
-          abort();
-
-          if (typeof to === 'object' && to.replace) {
-            this$1.replace(to);
-          } else {
-            this$1.push(to);
-          }
-        } else {
-          // confirm transition and pass on the value
-          next(to);
-        }
-      });
-    } catch (e) {
-      abort(e);
-    }
-  };
-
-  runQueue(queue, iterator, function () {
-    var postEnterCbs = [];
-
-    var isValid = function () {
-      return this$1.current === route;
-    }; // wait until async components are resolved before
-    // extracting in-component enter guards
-
-
-    var enterGuards = extractEnterGuards(activated, postEnterCbs, isValid);
-    var queue = enterGuards.concat(this$1.router.resolveHooks);
-    runQueue(queue, iterator, function () {
-      if (this$1.pending !== route) {
-        return abort();
-      }
-
-      this$1.pending = null;
-      onComplete(route);
-
-      if (this$1.router.app) {
-        this$1.router.app.$nextTick(function () {
-          postEnterCbs.forEach(function (cb) {
-            cb();
-          });
-        });
-      }
-    });
-  });
-};
-
-History.prototype.updateRoute = function updateRoute(route) {
-  var prev = this.current;
-  this.current = route;
-  this.cb && this.cb(route);
-  this.router.afterHooks.forEach(function (hook) {
-    hook && hook(route, prev);
-  });
-};
-
-function normalizeBase(base) {
-  if (!base) {
-    if (inBrowser) {
-      // respect <base> tag
-      var baseEl = document.querySelector('base');
-      base = baseEl && baseEl.getAttribute('href') || '/'; // strip full URL origin
-
-      base = base.replace(/^https?:\/\/[^\/]+/, '');
-    } else {
-      base = '/';
-    }
-  } // make sure there's the starting slash
-
-
-  if (base.charAt(0) !== '/') {
-    base = '/' + base;
-  } // remove trailing slash
-
-
-  return base.replace(/\/$/, '');
-}
-
-function resolveQueue(current, next) {
-  var i;
-  var max = Math.max(current.length, next.length);
-
-  for (i = 0; i < max; i++) {
-    if (current[i] !== next[i]) {
-      break;
-    }
-  }
-
-  return {
-    updated: next.slice(0, i),
-    activated: next.slice(i),
-    deactivated: current.slice(i)
-  };
-}
-
-function extractGuards(records, name, bind, reverse) {
-  var guards = flatMapComponents(records, function (def, instance, match, key) {
-    var guard = extractGuard(def, name);
-
-    if (guard) {
-      return Array.isArray(guard) ? guard.map(function (guard) {
-        return bind(guard, instance, match, key);
-      }) : bind(guard, instance, match, key);
-    }
-  });
-  return flatten(reverse ? guards.reverse() : guards);
-}
-
-function extractGuard(def, key) {
-  if (typeof def !== 'function') {
-    // extend now so that global mixins are applied.
-    def = _Vue.extend(def);
-  }
-
-  return def.options[key];
-}
-
-function extractLeaveGuards(deactivated) {
-  return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true);
-}
-
-function extractUpdateHooks(updated) {
-  return extractGuards(updated, 'beforeRouteUpdate', bindGuard);
-}
-
-function bindGuard(guard, instance) {
-  if (instance) {
-    return function boundRouteGuard() {
-      return guard.apply(instance, arguments);
-    };
-  }
-}
-
-function extractEnterGuards(activated, cbs, isValid) {
-  return extractGuards(activated, 'beforeRouteEnter', function (guard, _, match, key) {
-    return bindEnterGuard(guard, match, key, cbs, isValid);
-  });
-}
-
-function bindEnterGuard(guard, match, key, cbs, isValid) {
-  return function routeEnterGuard(to, from, next) {
-    return guard(to, from, function (cb) {
-      next(cb);
-
-      if (typeof cb === 'function') {
-        cbs.push(function () {
-          // #750
-          // if a router-view is wrapped with an out-in transition,
-          // the instance may not have been registered at this time.
-          // we will need to poll for registration until current route
-          // is no longer valid.
-          poll(cb, match.instances, key, isValid);
-        });
-      }
-    });
-  };
-}
-
-function poll(cb, // somehow flow cannot infer this is a function
-instances, key, isValid) {
-  if (instances[key]) {
-    cb(instances[key]);
-  } else if (isValid()) {
-    setTimeout(function () {
-      poll(cb, instances, key, isValid);
-    }, 16);
-  }
-}
-/*  */
-
-
-var HTML5History = function (History$$1) {
-  function HTML5History(router, base) {
-    var this$1 = this;
-    History$$1.call(this, router, base);
-    var expectScroll = router.options.scrollBehavior;
-
-    if (expectScroll) {
-      setupScroll();
-    }
-
-    var initLocation = getLocation(this.base);
-    window.addEventListener('popstate', function (e) {
-      var current = this$1.current; // Avoiding first `popstate` event dispatched in some browsers but first
-      // history route not updated since async guard at the same time.
-
-      var location = getLocation(this$1.base);
-
-      if (this$1.current === START && location === initLocation) {
-        return;
-      }
-
-      this$1.transitionTo(location, function (route) {
-        if (expectScroll) {
-          handleScroll(router, route, current, true);
-        }
-      });
-    });
-  }
-
-  if (History$$1) HTML5History.__proto__ = History$$1;
-  HTML5History.prototype = Object.create(History$$1 && History$$1.prototype);
-  HTML5History.prototype.constructor = HTML5History;
-
-  HTML5History.prototype.go = function go(n) {
-    window.history.go(n);
-  };
-
-  HTML5History.prototype.push = function push(location, onComplete, onAbort) {
-    var this$1 = this;
-    var ref = this;
-    var fromRoute = ref.current;
-    this.transitionTo(location, function (route) {
-      pushState(cleanPath(this$1.base + route.fullPath));
-      handleScroll(this$1.router, route, fromRoute, false);
-      onComplete && onComplete(route);
-    }, onAbort);
-  };
-
-  HTML5History.prototype.replace = function replace(location, onComplete, onAbort) {
-    var this$1 = this;
-    var ref = this;
-    var fromRoute = ref.current;
-    this.transitionTo(location, function (route) {
-      replaceState(cleanPath(this$1.base + route.fullPath));
-      handleScroll(this$1.router, route, fromRoute, false);
-      onComplete && onComplete(route);
-    }, onAbort);
-  };
-
-  HTML5History.prototype.ensureURL = function ensureURL(push) {
-    if (getLocation(this.base) !== this.current.fullPath) {
-      var current = cleanPath(this.base + this.current.fullPath);
-      push ? pushState(current) : replaceState(current);
-    }
-  };
-
-  HTML5History.prototype.getCurrentLocation = function getCurrentLocation() {
-    return getLocation(this.base);
-  };
-
-  return HTML5History;
-}(History);
-
-function getLocation(base) {
-  var path = window.location.pathname;
-
-  if (base && path.indexOf(base) === 0) {
-    path = path.slice(base.length);
-  }
-
-  return (path || '/') + window.location.search + window.location.hash;
-}
-/*  */
-
-
-var HashHistory = function (History$$1) {
-  function HashHistory(router, base, fallback) {
-    History$$1.call(this, router, base); // check history fallback deeplinking
-
-    if (fallback && checkFallback(this.base)) {
-      return;
-    }
-
-    ensureSlash();
-  }
-
-  if (History$$1) HashHistory.__proto__ = History$$1;
-  HashHistory.prototype = Object.create(History$$1 && History$$1.prototype);
-  HashHistory.prototype.constructor = HashHistory; // this is delayed until the app mounts
-  // to avoid the hashchange listener being fired too early
-
-  HashHistory.prototype.setupListeners = function setupListeners() {
-    var this$1 = this;
-    var router = this.router;
-    var expectScroll = router.options.scrollBehavior;
-    var supportsScroll = supportsPushState && expectScroll;
-
-    if (supportsScroll) {
-      setupScroll();
-    }
-
-    window.addEventListener(supportsPushState ? 'popstate' : 'hashchange', function () {
-      var current = this$1.current;
-
-      if (!ensureSlash()) {
-        return;
-      }
-
-      this$1.transitionTo(getHash(), function (route) {
-        if (supportsScroll) {
-          handleScroll(this$1.router, route, current, true);
-        }
-
-        if (!supportsPushState) {
-          replaceHash(route.fullPath);
-        }
-      });
-    });
-  };
-
-  HashHistory.prototype.push = function push(location, onComplete, onAbort) {
-    var this$1 = this;
-    var ref = this;
-    var fromRoute = ref.current;
-    this.transitionTo(location, function (route) {
-      pushHash(route.fullPath);
-      handleScroll(this$1.router, route, fromRoute, false);
-      onComplete && onComplete(route);
-    }, onAbort);
-  };
-
-  HashHistory.prototype.replace = function replace(location, onComplete, onAbort) {
-    var this$1 = this;
-    var ref = this;
-    var fromRoute = ref.current;
-    this.transitionTo(location, function (route) {
-      replaceHash(route.fullPath);
-      handleScroll(this$1.router, route, fromRoute, false);
-      onComplete && onComplete(route);
-    }, onAbort);
-  };
-
-  HashHistory.prototype.go = function go(n) {
-    window.history.go(n);
-  };
-
-  HashHistory.prototype.ensureURL = function ensureURL(push) {
-    var current = this.current.fullPath;
-
-    if (getHash() !== current) {
-      push ? pushHash(current) : replaceHash(current);
-    }
-  };
-
-  HashHistory.prototype.getCurrentLocation = function getCurrentLocation() {
-    return getHash();
-  };
-
-  return HashHistory;
-}(History);
-
-function checkFallback(base) {
-  var location = getLocation(base);
-
-  if (!/^\/#/.test(location)) {
-    window.location.replace(cleanPath(base + '/#' + location));
-    return true;
-  }
-}
-
-function ensureSlash() {
-  var path = getHash();
-
-  if (path.charAt(0) === '/') {
-    return true;
-  }
-
-  replaceHash('/' + path);
-  return false;
-}
-
-function getHash() {
-  // We can't use window.location.hash here because it's not
-  // consistent across browsers - Firefox will pre-decode it!
-  var href = window.location.href;
-  var index = href.indexOf('#');
-  return index === -1 ? '' : href.slice(index + 1);
-}
-
-function getUrl(path) {
-  var href = window.location.href;
-  var i = href.indexOf('#');
-  var base = i >= 0 ? href.slice(0, i) : href;
-  return base + "#" + path;
-}
-
-function pushHash(path) {
-  if (supportsPushState) {
-    pushState(getUrl(path));
-  } else {
-    window.location.hash = path;
-  }
-}
-
-function replaceHash(path) {
-  if (supportsPushState) {
-    replaceState(getUrl(path));
-  } else {
-    window.location.replace(getUrl(path));
-  }
-}
-/*  */
-
-
-var AbstractHistory = function (History$$1) {
-  function AbstractHistory(router, base) {
-    History$$1.call(this, router, base);
-    this.stack = [];
-    this.index = -1;
-  }
-
-  if (History$$1) AbstractHistory.__proto__ = History$$1;
-  AbstractHistory.prototype = Object.create(History$$1 && History$$1.prototype);
-  AbstractHistory.prototype.constructor = AbstractHistory;
-
-  AbstractHistory.prototype.push = function push(location, onComplete, onAbort) {
-    var this$1 = this;
-    this.transitionTo(location, function (route) {
-      this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);
-      this$1.index++;
-      onComplete && onComplete(route);
-    }, onAbort);
-  };
-
-  AbstractHistory.prototype.replace = function replace(location, onComplete, onAbort) {
-    var this$1 = this;
-    this.transitionTo(location, function (route) {
-      this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);
-      onComplete && onComplete(route);
-    }, onAbort);
-  };
-
-  AbstractHistory.prototype.go = function go(n) {
-    var this$1 = this;
-    var targetIndex = this.index + n;
-
-    if (targetIndex < 0 || targetIndex >= this.stack.length) {
-      return;
-    }
-
-    var route = this.stack[targetIndex];
-    this.confirmTransition(route, function () {
-      this$1.index = targetIndex;
-      this$1.updateRoute(route);
-    });
-  };
-
-  AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation() {
-    var current = this.stack[this.stack.length - 1];
-    return current ? current.fullPath : '/';
-  };
-
-  AbstractHistory.prototype.ensureURL = function ensureURL() {// noop
-  };
-
-  return AbstractHistory;
-}(History);
-/*  */
-
-
-var VueRouter = function VueRouter(options) {
-  if (options === void 0) options = {};
-  this.app = null;
-  this.apps = [];
-  this.options = options;
-  this.beforeHooks = [];
-  this.resolveHooks = [];
-  this.afterHooks = [];
-  this.matcher = createMatcher(options.routes || [], this);
-  var mode = options.mode || 'hash';
-  this.fallback = mode === 'history' && !supportsPushState && options.fallback !== false;
-
-  if (this.fallback) {
-    mode = 'hash';
-  }
-
-  if (!inBrowser) {
-    mode = 'abstract';
-  }
-
-  this.mode = mode;
-
-  switch (mode) {
-    case 'history':
-      this.history = new HTML5History(this, options.base);
-      break;
-
-    case 'hash':
-      this.history = new HashHistory(this, options.base, this.fallback);
-      break;
-
-    case 'abstract':
-      this.history = new AbstractHistory(this, options.base);
-      break;
-
-    default:
-      if ("development" !== 'production') {
-        assert(false, "invalid mode: " + mode);
-      }
-
-  }
-};
-
-var prototypeAccessors = {
-  currentRoute: {
-    configurable: true
-  }
-};
-
-VueRouter.prototype.match = function match(raw, current, redirectedFrom) {
-  return this.matcher.match(raw, current, redirectedFrom);
-};
-
-prototypeAccessors.currentRoute.get = function () {
-  return this.history && this.history.current;
-};
-
-VueRouter.prototype.init = function init(app
-/* Vue component instance */
-) {
-  var this$1 = this;
-  "development" !== 'production' && assert(install.installed, "not installed. Make sure to call `Vue.use(VueRouter)` " + "before creating root instance.");
-  this.apps.push(app); // main app already initialized.
-
-  if (this.app) {
-    return;
-  }
-
-  this.app = app;
-  var history = this.history;
-
-  if (history instanceof HTML5History) {
-    history.transitionTo(history.getCurrentLocation());
-  } else if (history instanceof HashHistory) {
-    var setupHashListener = function () {
-      history.setupListeners();
-    };
-
-    history.transitionTo(history.getCurrentLocation(), setupHashListener, setupHashListener);
-  }
-
-  history.listen(function (route) {
-    this$1.apps.forEach(function (app) {
-      app._route = route;
-    });
-  });
-};
-
-VueRouter.prototype.beforeEach = function beforeEach(fn) {
-  return registerHook(this.beforeHooks, fn);
-};
-
-VueRouter.prototype.beforeResolve = function beforeResolve(fn) {
-  return registerHook(this.resolveHooks, fn);
-};
-
-VueRouter.prototype.afterEach = function afterEach(fn) {
-  return registerHook(this.afterHooks, fn);
-};
-
-VueRouter.prototype.onReady = function onReady(cb, errorCb) {
-  this.history.onReady(cb, errorCb);
-};
-
-VueRouter.prototype.onError = function onError(errorCb) {
-  this.history.onError(errorCb);
-};
-
-VueRouter.prototype.push = function push(location, onComplete, onAbort) {
-  this.history.push(location, onComplete, onAbort);
-};
-
-VueRouter.prototype.replace = function replace(location, onComplete, onAbort) {
-  this.history.replace(location, onComplete, onAbort);
-};
-
-VueRouter.prototype.go = function go(n) {
-  this.history.go(n);
-};
-
-VueRouter.prototype.back = function back() {
-  this.go(-1);
-};
-
-VueRouter.prototype.forward = function forward() {
-  this.go(1);
-};
-
-VueRouter.prototype.getMatchedComponents = function getMatchedComponents(to) {
-  var route = to ? to.matched ? to : this.resolve(to).route : this.currentRoute;
-
-  if (!route) {
-    return [];
-  }
-
-  return [].concat.apply([], route.matched.map(function (m) {
-    return Object.keys(m.components).map(function (key) {
-      return m.components[key];
-    });
-  }));
-};
-
-VueRouter.prototype.resolve = function resolve(to, current, append) {
-  var location = normalizeLocation(to, current || this.history.current, append, this);
-  var route = this.match(location, current);
-  var fullPath = route.redirectedFrom || route.fullPath;
-  var base = this.history.base;
-  var href = createHref(base, fullPath, this.mode);
-  return {
-    location: location,
-    route: route,
-    href: href,
-    // for backwards compat
-    normalizedTo: location,
-    resolved: route
-  };
-};
-
-VueRouter.prototype.addRoutes = function addRoutes(routes) {
-  this.matcher.addRoutes(routes);
-
-  if (this.history.current !== START) {
-    this.history.transitionTo(this.history.getCurrentLocation());
-  }
-};
-
-Object.defineProperties(VueRouter.prototype, prototypeAccessors);
-
-function registerHook(list, fn) {
-  list.push(fn);
-  return function () {
-    var i = list.indexOf(fn);
-
-    if (i > -1) {
-      list.splice(i, 1);
-    }
-  };
-}
-
-function createHref(base, fullPath, mode) {
-  var path = mode === 'hash' ? '#' + fullPath : fullPath;
-  return base ? cleanPath(base + '/' + path) : path;
-}
-
-VueRouter.install = install;
-VueRouter.version = '3.0.1';
-
-if (inBrowser && window.Vue) {
-  window.Vue.use(VueRouter);
-}
-
-var _default = VueRouter;
-exports.default = _default;
-},{}],"../node_modules/parcel-bundler/src/builtins/bundle-url.js":[function(require,module,exports) {
-var bundleURL = null;
-
-function getBundleURLCached() {
-  if (!bundleURL) {
-    bundleURL = getBundleURL();
-  }
-
-  return bundleURL;
-}
-
-function getBundleURL() {
-  // Attempt to find the URL of the current script and use that as the base URL
-  try {
-    throw new Error();
-  } catch (err) {
-    var matches = ('' + err.stack).match(/(https?|file|ftp):\/\/[^)\n]+/g);
-
-    if (matches) {
-      return getBaseURL(matches[0]);
-    }
-  }
-
-  return '/';
-}
-
-function getBaseURL(url) {
-  return ('' + url).replace(/^((?:https?|file|ftp):\/\/.+)\/[^/]+$/, '$1') + '/';
-}
-
-exports.getBundleURL = getBundleURLCached;
-exports.getBaseURL = getBaseURL;
-},{}],"../node_modules/parcel-bundler/src/builtins/css-loader.js":[function(require,module,exports) {
-var bundle = require('./bundle-url');
-
-function updateLink(link) {
-  var newLink = link.cloneNode();
-
-  newLink.onload = function () {
-    link.remove();
-  };
-
-  newLink.href = link.href.split('?')[0] + '?' + Date.now();
-  link.parentNode.insertBefore(newLink, link.nextSibling);
-}
-
-var cssTimeout = null;
-
-function reloadCSS() {
-  if (cssTimeout) {
-    return;
-  }
-
-  cssTimeout = setTimeout(function () {
-    var links = document.querySelectorAll('link[rel="stylesheet"]');
-
-    for (var i = 0; i < links.length; i++) {
-      if (bundle.getBaseURL(links[i].href) === bundle.getBundleURL()) {
-        updateLink(links[i]);
-      }
-    }
-
-    cssTimeout = null;
-  }, 50);
-}
-
-module.exports = reloadCSS;
-},{"./bundle-url":"../node_modules/parcel-bundler/src/builtins/bundle-url.js"}],"../node_modules/vue-hot-reload-api/dist/index.js":[function(require,module,exports) {
-var Vue // late bind
-var version
-var map = Object.create(null)
-if (typeof window !== 'undefined') {
-  window.__VUE_HOT_MAP__ = map
-}
-var installed = false
-var isBrowserify = false
-var initHookName = 'beforeCreate'
-
-exports.install = function (vue, browserify) {
-  if (installed) { return }
-  installed = true
-
-  Vue = vue.__esModule ? vue.default : vue
-  version = Vue.version.split('.').map(Number)
-  isBrowserify = browserify
-
-  // compat with < 2.0.0-alpha.7
-  if (Vue.config._lifecycleHooks.indexOf('init') > -1) {
-    initHookName = 'init'
-  }
-
-  exports.compatible = version[0] >= 2
-  if (!exports.compatible) {
-    console.warn(
-      '[HMR] You are using a version of vue-hot-reload-api that is ' +
-        'only compatible with Vue.js core ^2.0.0.'
-    )
-    return
-  }
-}
-
-/**
- * Create a record for a hot module, which keeps track of its constructor
- * and instances
- *
- * @param {String} id
- * @param {Object} options
- */
-
-exports.createRecord = function (id, options) {
-  if(map[id]) { return }
-
-  var Ctor = null
-  if (typeof options === 'function') {
-    Ctor = options
-    options = Ctor.options
-  }
-  makeOptionsHot(id, options)
-  map[id] = {
-    Ctor: Ctor,
-    options: options,
-    instances: []
-  }
-}
-
-/**
- * Check if module is recorded
- *
- * @param {String} id
- */
-
-exports.isRecorded = function (id) {
-  return typeof map[id] !== 'undefined'
-}
-
-/**
- * Make a Component options object hot.
- *
- * @param {String} id
- * @param {Object} options
- */
-
-function makeOptionsHot(id, options) {
-  if (options.functional) {
-    var render = options.render
-    options.render = function (h, ctx) {
-      var instances = map[id].instances
-      if (ctx && instances.indexOf(ctx.parent) < 0) {
-        instances.push(ctx.parent)
-      }
-      return render(h, ctx)
-    }
-  } else {
-    injectHook(options, initHookName, function() {
-      var record = map[id]
-      if (!record.Ctor) {
-        record.Ctor = this.constructor
-      }
-      record.instances.push(this)
-    })
-    injectHook(options, 'beforeDestroy', function() {
-      var instances = map[id].instances
-      instances.splice(instances.indexOf(this), 1)
-    })
-  }
-}
-
-/**
- * Inject a hook to a hot reloadable component so that
- * we can keep track of it.
- *
- * @param {Object} options
- * @param {String} name
- * @param {Function} hook
- */
-
-function injectHook(options, name, hook) {
-  var existing = options[name]
-  options[name] = existing
-    ? Array.isArray(existing) ? existing.concat(hook) : [existing, hook]
-    : [hook]
-}
-
-function tryWrap(fn) {
-  return function (id, arg) {
-    try {
-      fn(id, arg)
-    } catch (e) {
-      console.error(e)
-      console.warn(
-        'Something went wrong during Vue component hot-reload. Full reload required.'
-      )
-    }
-  }
-}
-
-function updateOptions (oldOptions, newOptions) {
-  for (var key in oldOptions) {
-    if (!(key in newOptions)) {
-      delete oldOptions[key]
-    }
-  }
-  for (var key$1 in newOptions) {
-    oldOptions[key$1] = newOptions[key$1]
-  }
-}
-
-exports.rerender = tryWrap(function (id, options) {
-  var record = map[id]
-  if (!options) {
-    record.instances.slice().forEach(function (instance) {
-      instance.$forceUpdate()
-    })
-    return
-  }
-  if (typeof options === 'function') {
-    options = options.options
-  }
-  if (record.Ctor) {
-    record.Ctor.options.render = options.render
-    record.Ctor.options.staticRenderFns = options.staticRenderFns
-    record.instances.slice().forEach(function (instance) {
-      instance.$options.render = options.render
-      instance.$options.staticRenderFns = options.staticRenderFns
-      // reset static trees
-      // pre 2.5, all static trees are cached together on the instance
-      if (instance._staticTrees) {
-        instance._staticTrees = []
-      }
-      // 2.5.0
-      if (Array.isArray(record.Ctor.options.cached)) {
-        record.Ctor.options.cached = []
-      }
-      // 2.5.3
-      if (Array.isArray(instance.$options.cached)) {
-        instance.$options.cached = []
-      }
-      // post 2.5.4: v-once trees are cached on instance._staticTrees.
-      // Pure static trees are cached on the staticRenderFns array
-      // (both already reset above)
-      instance.$forceUpdate()
-    })
-  } else {
-    // functional or no instance created yet
-    record.options.render = options.render
-    record.options.staticRenderFns = options.staticRenderFns
-
-    // handle functional component re-render
-    if (record.options.functional) {
-      // rerender with full options
-      if (Object.keys(options).length > 2) {
-        updateOptions(record.options, options)
-      } else {
-        // template-only rerender.
-        // need to inject the style injection code for CSS modules
-        // to work properly.
-        var injectStyles = record.options._injectStyles
-        if (injectStyles) {
-          var render = options.render
-          record.options.render = function (h, ctx) {
-            injectStyles.call(ctx)
-            return render(h, ctx)
-          }
-        }
-      }
-      record.options._Ctor = null
-      // 2.5.3
-      if (Array.isArray(record.options.cached)) {
-        record.options.cached = []
-      }
-      record.instances.slice().forEach(function (instance) {
-        instance.$forceUpdate()
-      })
-    }
-  }
-})
-
-exports.reload = tryWrap(function (id, options) {
-  var record = map[id]
-  if (options) {
-    if (typeof options === 'function') {
-      options = options.options
-    }
-    makeOptionsHot(id, options)
-    if (record.Ctor) {
-      if (version[1] < 2) {
-        // preserve pre 2.2 behavior for global mixin handling
-        record.Ctor.extendOptions = options
-      }
-      var newCtor = record.Ctor.super.extend(options)
-      record.Ctor.options = newCtor.options
-      record.Ctor.cid = newCtor.cid
-      record.Ctor.prototype = newCtor.prototype
-      if (newCtor.release) {
-        // temporary global mixin strategy used in < 2.0.0-alpha.6
-        newCtor.release()
-      }
-    } else {
-      updateOptions(record.options, options)
-    }
-  }
-  record.instances.slice().forEach(function (instance) {
-    if (instance.$vnode && instance.$vnode.context) {
-      instance.$vnode.context.$forceUpdate()
-    } else {
-      console.warn(
-        'Root or manually mounted instance modified. Full reload required.'
-      )
-    }
-  })
-})
-
-},{}],"App.vue":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-//
-//
-//
-//
-//
-//
-//
-//
-//
-var _default = {
-  name: "App"
-};
-exports.default = _default;
-        var $dabb52 = exports.default || module.exports;
-      
-      if (typeof $dabb52 === 'function') {
-        $dabb52 = $dabb52.options;
-      }
-    
-        /* template */
-        Object.assign($dabb52, (function () {
-          var render = function() {
-  var _vm = this
-  var _h = _vm.$createElement
-  var _c = _vm._self._c || _h
-  return _c(
-    "div",
-    { staticClass: "content" },
-    [
-      _c(
-        "p",
-        [_c("router-link", { attrs: { to: "/" } }, [_vm._v("Go back")])],
-        1
-      ),
-      _vm._v(" "),
-      _c("router-view")
-    ],
-    1
-  )
-}
-var staticRenderFns = []
-render._withStripped = true
-
-          return {
-            render: render,
-            staticRenderFns: staticRenderFns,
-            _compiled: true,
-            _scopeId: null,
-            functional: undefined
-          };
-        })());
-      
-    /* hot reload */
-    (function () {
-      if (module.hot) {
-        var api = require('vue-hot-reload-api');
-        api.install(require('vue'));
-        if (api.compatible) {
-          module.hot.accept();
-          if (!module.hot.data) {
-            api.createRecord('$dabb52', $dabb52);
-          } else {
-            api.reload('$dabb52', $dabb52);
-          }
-        }
-
-        
-        var reloadCSS = require('_css_loader');
-        module.hot.dispose(reloadCSS);
-        module.hot.accept(reloadCSS);
-      
-      }
-    })();
-},{"_css_loader":"../node_modules/parcel-bundler/src/builtins/css-loader.js","vue-hot-reload-api":"../node_modules/vue-hot-reload-api/dist/index.js","vue":"../node_modules/vue/dist/vue.runtime.esm.js"}],"pages/Index.vue":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-var _default = {
-  name: "Index",
-
-  data() {
-    return {
-      containers: []
-    };
-  },
-
-  async created() {
-    this.containers = await (await fetch(`/api/containers.json`)).json();
-  }
-
-};
-exports.default = _default;
-        var $68f6a3 = exports.default || module.exports;
-      
-      if (typeof $68f6a3 === 'function') {
-        $68f6a3 = $68f6a3.options;
-      }
-    
-        /* template */
-        Object.assign($68f6a3, (function () {
-          var render = function() {
-  var _vm = this
-  var _h = _vm.$createElement
-  var _c = _vm._self._c || _h
-  return _c("div", [
-    _c(
-      "ul",
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diff --git a/static/main.1f19ae8e.map b/static/main.1f19ae8e.map
deleted file mode 100644
index 7a8342a66872..000000000000
--- a/static/main.1f19ae8e.map
+++ /dev/null
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Only returns true\n * for plain JavaScript objects.\n */\nfunction isPlainObject (obj) {\n  return _toString.call(obj) === '[object Object]'\n}\n\nfunction isRegExp (v) {\n  return _toString.call(v) === '[object RegExp]'\n}\n\n/**\n * Check if val is a valid array index.\n */\nfunction isValidArrayIndex (val) {\n  var n = parseFloat(String(val));\n  return n >= 0 && Math.floor(n) === n && isFinite(val)\n}\n\n/**\n * Convert a value to a string that is actually rendered.\n */\nfunction toString (val) {\n  return val == null\n    ? ''\n    : typeof val === 'object'\n      ? JSON.stringify(val, null, 2)\n      : String(val)\n}\n\n/**\n * Convert a input value to a number for persistence.\n * If the conversion fails, return original string.\n */\nfunction toNumber (val) {\n  var n = parseFloat(val);\n  return isNaN(n) ? val : n\n}\n\n/**\n * Make a map and return a function for checking if a key\n * is in that map.\n */\nfunction makeMap (\n  str,\n  expectsLowerCase\n) {\n  var map = Object.create(null);\n  var list = str.split(',');\n  for (var i = 0; i < list.length; i++) {\n    map[list[i]] = true;\n  }\n  return expectsLowerCase\n    ? function (val) { return map[val.toLowerCase()]; }\n    : function (val) { return map[val]; }\n}\n\n/**\n * Check if a tag is a built-in tag.\n */\nvar isBuiltInTag = makeMap('slot,component', true);\n\n/**\n * Check if a attribute is a reserved attribute.\n */\nvar isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');\n\n/**\n * Remove an item from an array\n */\nfunction remove (arr, item) {\n  if (arr.length) {\n    var index = arr.indexOf(item);\n    if (index > -1) {\n      return arr.splice(index, 1)\n    }\n  }\n}\n\n/**\n * Check whether the object has the property.\n */\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nfunction hasOwn (obj, key) {\n  return hasOwnProperty.call(obj, key)\n}\n\n/**\n * Create a cached version of a pure function.\n */\nfunction cached (fn) {\n  var cache = Object.create(null);\n  return (function cachedFn (str) {\n    var hit = cache[str];\n    return hit || (cache[str] = fn(str))\n  })\n}\n\n/**\n * Camelize a hyphen-delimited string.\n */\nvar camelizeRE = /-(\\w)/g;\nvar camelize = cached(function (str) {\n  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })\n});\n\n/**\n * Capitalize a string.\n */\nvar capitalize = cached(function (str) {\n  return str.charAt(0).toUpperCase() + str.slice(1)\n});\n\n/**\n * Hyphenate a camelCase string.\n */\nvar hyphenateRE = /\\B([A-Z])/g;\nvar hyphenate = cached(function (str) {\n  return str.replace(hyphenateRE, '-$1').toLowerCase()\n});\n\n/**\n * Simple bind polyfill for environments that do not support it... e.g.\n * PhantomJS 1.x. Technically we don't need this anymore since native bind is\n * now more performant in most browsers, but removing it would be breaking for\n * code that was able to run in PhantomJS 1.x, so this must be kept for\n * backwards compatibility.\n */\n\n/* istanbul ignore next */\nfunction polyfillBind (fn, ctx) {\n  function boundFn (a) {\n    var l = arguments.length;\n    return l\n      ? l > 1\n        ? fn.apply(ctx, arguments)\n        : fn.call(ctx, a)\n      : fn.call(ctx)\n  }\n\n  boundFn._length = fn.length;\n  return boundFn\n}\n\nfunction nativeBind (fn, ctx) {\n  return fn.bind(ctx)\n}\n\nvar bind = Function.prototype.bind\n  ? nativeBind\n  : polyfillBind;\n\n/**\n * Convert an Array-like object to a real Array.\n */\nfunction toArray (list, start) {\n  start = start || 0;\n  var i = list.length - start;\n  var ret = new Array(i);\n  while (i--) {\n    ret[i] = list[i + start];\n  }\n  return ret\n}\n\n/**\n * Mix properties into target object.\n */\nfunction extend (to, _from) {\n  for (var key in _from) {\n    to[key] = _from[key];\n  }\n  return to\n}\n\n/**\n * Merge an Array of Objects into a single Object.\n */\nfunction toObject (arr) {\n  var res = {};\n  for (var i = 0; i < arr.length; i++) {\n    if (arr[i]) {\n      extend(res, arr[i]);\n    }\n  }\n  return res\n}\n\n/**\n * Perform no operation.\n * Stubbing args to make Flow happy without leaving useless transpiled code\n * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)\n */\nfunction noop (a, b, c) {}\n\n/**\n * Always return false.\n */\nvar no = function (a, b, c) { return false; };\n\n/**\n * Return same value\n */\nvar identity = function (_) { return _; };\n\n/**\n * Generate a static keys string from compiler modules.\n */\n\n\n/**\n * Check if two values are loosely equal - that is,\n * if they are plain objects, do they have the same shape?\n */\nfunction looseEqual (a, b) {\n  if (a === b) { return true }\n  var isObjectA = isObject(a);\n  var isObjectB = isObject(b);\n  if (isObjectA && isObjectB) {\n    try {\n      var isArrayA = Array.isArray(a);\n      var isArrayB = Array.isArray(b);\n      if (isArrayA && isArrayB) {\n        return a.length === b.length && a.every(function (e, i) {\n          return looseEqual(e, b[i])\n        })\n      } else if (!isArrayA && !isArrayB) {\n        var keysA = Object.keys(a);\n        var keysB = Object.keys(b);\n        return keysA.length === keysB.length && keysA.every(function (key) {\n          return looseEqual(a[key], b[key])\n        })\n      } else {\n        /* istanbul ignore next */\n        return false\n      }\n    } catch (e) {\n      /* istanbul ignore next */\n      return false\n    }\n  } else if (!isObjectA && !isObjectB) {\n    return String(a) === String(b)\n  } else {\n    return false\n  }\n}\n\nfunction looseIndexOf (arr, val) {\n  for (var i = 0; i < arr.length; i++) {\n    if (looseEqual(arr[i], val)) { return i }\n  }\n  return -1\n}\n\n/**\n * Ensure a function is called only once.\n */\nfunction once (fn) {\n  var called = false;\n  return function () {\n    if (!called) {\n      called = true;\n      fn.apply(this, arguments);\n    }\n  }\n}\n\nvar SSR_ATTR = 'data-server-rendered';\n\nvar ASSET_TYPES = [\n  'component',\n  'directive',\n  'filter'\n];\n\nvar LIFECYCLE_HOOKS = [\n  'beforeCreate',\n  'created',\n  'beforeMount',\n  'mounted',\n  'beforeUpdate',\n  'updated',\n  'beforeDestroy',\n  'destroyed',\n  'activated',\n  'deactivated',\n  'errorCaptured'\n];\n\n/*  */\n\nvar config = ({\n  /**\n   * Option merge strategies (used in core/util/options)\n   */\n  // $flow-disable-line\n  optionMergeStrategies: Object.create(null),\n\n  /**\n   * Whether to suppress warnings.\n   */\n  silent: false,\n\n  /**\n   * Show production mode tip message on boot?\n   */\n  productionTip: process.env.NODE_ENV !== 'production',\n\n  /**\n   * Whether to enable devtools\n   */\n  devtools: process.env.NODE_ENV !== 'production',\n\n  /**\n   * Whether to record perf\n   */\n  performance: false,\n\n  /**\n   * Error handler for watcher errors\n   */\n  errorHandler: null,\n\n  /**\n   * Warn handler for watcher warns\n   */\n  warnHandler: null,\n\n  /**\n   * Ignore certain custom elements\n   */\n  ignoredElements: [],\n\n  /**\n   * Custom user key aliases for v-on\n   */\n  // $flow-disable-line\n  keyCodes: Object.create(null),\n\n  /**\n   * Check if a tag is reserved so that it cannot be registered as a\n   * component. This is platform-dependent and may be overwritten.\n   */\n  isReservedTag: no,\n\n  /**\n   * Check if an attribute is reserved so that it cannot be used as a component\n   * prop. This is platform-dependent and may be overwritten.\n   */\n  isReservedAttr: no,\n\n  /**\n   * Check if a tag is an unknown element.\n   * Platform-dependent.\n   */\n  isUnknownElement: no,\n\n  /**\n   * Get the namespace of an element\n   */\n  getTagNamespace: noop,\n\n  /**\n   * Parse the real tag name for the specific platform.\n   */\n  parsePlatformTagName: identity,\n\n  /**\n   * Check if an attribute must be bound using property, e.g. value\n   * Platform-dependent.\n   */\n  mustUseProp: no,\n\n  /**\n   * Exposed for legacy reasons\n   */\n  _lifecycleHooks: LIFECYCLE_HOOKS\n})\n\n/*  */\n\n/**\n * Check if a string starts with $ or _\n */\nfunction isReserved (str) {\n  var c = (str + '').charCodeAt(0);\n  return c === 0x24 || c === 0x5F\n}\n\n/**\n * Define a property.\n */\nfunction def (obj, key, val, enumerable) {\n  Object.defineProperty(obj, key, {\n    value: val,\n    enumerable: !!enumerable,\n    writable: true,\n    configurable: true\n  });\n}\n\n/**\n * Parse simple path.\n */\nvar bailRE = /[^\\w.$]/;\nfunction parsePath (path) {\n  if (bailRE.test(path)) {\n    return\n  }\n  var segments = path.split('.');\n  return function (obj) {\n    for (var i = 0; i < segments.length; i++) {\n      if (!obj) { return }\n      obj = obj[segments[i]];\n    }\n    return obj\n  }\n}\n\n/*  */\n\n// can we use __proto__?\nvar hasProto = '__proto__' in {};\n\n// Browser environment sniffing\nvar inBrowser = typeof window !== 'undefined';\nvar inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;\nvar weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();\nvar UA = inBrowser && window.navigator.userAgent.toLowerCase();\nvar isIE = UA && /msie|trident/.test(UA);\nvar isIE9 = UA && UA.indexOf('msie 9.0') > 0;\nvar isEdge = UA && UA.indexOf('edge/') > 0;\nvar isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');\nvar isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');\nvar isChrome = UA && /chrome\\/\\d+/.test(UA) && !isEdge;\n\n// Firefox has a \"watch\" function on Object.prototype...\nvar nativeWatch = ({}).watch;\n\nvar supportsPassive = false;\nif (inBrowser) {\n  try {\n    var opts = {};\n    Object.defineProperty(opts, 'passive', ({\n      get: function get () {\n        /* istanbul ignore next */\n        supportsPassive = true;\n      }\n    })); // /~https://github.com/facebook/flow/issues/285\n    window.addEventListener('test-passive', null, opts);\n  } catch (e) {}\n}\n\n// this needs to be lazy-evaled because vue may be required before\n// vue-server-renderer can set VUE_ENV\nvar _isServer;\nvar isServerRendering = function () {\n  if (_isServer === undefined) {\n    /* istanbul ignore if */\n    if (!inBrowser && !inWeex && typeof global !== 'undefined') {\n      // detect presence of vue-server-renderer and avoid\n      // Webpack shimming the process\n      _isServer = global['process'].env.VUE_ENV === 'server';\n    } else {\n      _isServer = false;\n    }\n  }\n  return _isServer\n};\n\n// detect devtools\nvar devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;\n\n/* istanbul ignore next */\nfunction isNative (Ctor) {\n  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())\n}\n\nvar hasSymbol =\n  typeof Symbol !== 'undefined' && isNative(Symbol) &&\n  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);\n\nvar _Set;\n/* istanbul ignore if */ // $flow-disable-line\nif (typeof Set !== 'undefined' && isNative(Set)) {\n  // use native Set when available.\n  _Set = Set;\n} else {\n  // a non-standard Set polyfill that only works with primitive keys.\n  _Set = (function () {\n    function Set () {\n      this.set = Object.create(null);\n    }\n    Set.prototype.has = function has (key) {\n      return this.set[key] === true\n    };\n    Set.prototype.add = function add (key) {\n      this.set[key] = true;\n    };\n    Set.prototype.clear = function clear () {\n      this.set = Object.create(null);\n    };\n\n    return Set;\n  }());\n}\n\n/*  */\n\nvar warn = noop;\nvar tip = noop;\nvar generateComponentTrace = (noop); // work around flow check\nvar formatComponentName = (noop);\n\nif (process.env.NODE_ENV !== 'production') {\n  var hasConsole = typeof console !== 'undefined';\n  var classifyRE = /(?:^|[-_])(\\w)/g;\n  var classify = function (str) { return str\n    .replace(classifyRE, function (c) { return c.toUpperCase(); })\n    .replace(/[-_]/g, ''); };\n\n  warn = function (msg, vm) {\n    var trace = vm ? generateComponentTrace(vm) : '';\n\n    if (config.warnHandler) {\n      config.warnHandler.call(null, msg, vm, trace);\n    } else if (hasConsole && (!config.silent)) {\n      console.error((\"[Vue warn]: \" + msg + trace));\n    }\n  };\n\n  tip = function (msg, vm) {\n    if (hasConsole && (!config.silent)) {\n      console.warn(\"[Vue tip]: \" + msg + (\n        vm ? generateComponentTrace(vm) : ''\n      ));\n    }\n  };\n\n  formatComponentName = function (vm, includeFile) {\n    if (vm.$root === vm) {\n      return '<Root>'\n    }\n    var options = typeof vm === 'function' && vm.cid != null\n      ? vm.options\n      : vm._isVue\n        ? vm.$options || vm.constructor.options\n        : vm || {};\n    var name = options.name || options._componentTag;\n    var file = options.__file;\n    if (!name && file) {\n      var match = file.match(/([^/\\\\]+)\\.vue$/);\n      name = match && match[1];\n    }\n\n    return (\n      (name ? (\"<\" + (classify(name)) + \">\") : \"<Anonymous>\") +\n      (file && includeFile !== false ? (\" at \" + file) : '')\n    )\n  };\n\n  var repeat = function (str, n) {\n    var res = '';\n    while (n) {\n      if (n % 2 === 1) { res += str; }\n      if (n > 1) { str += str; }\n      n >>= 1;\n    }\n    return res\n  };\n\n  generateComponentTrace = function (vm) {\n    if (vm._isVue && vm.$parent) {\n      var tree = [];\n      var currentRecursiveSequence = 0;\n      while (vm) {\n        if (tree.length > 0) {\n          var last = tree[tree.length - 1];\n          if (last.constructor === vm.constructor) {\n            currentRecursiveSequence++;\n            vm = vm.$parent;\n            continue\n          } else if (currentRecursiveSequence > 0) {\n            tree[tree.length - 1] = [last, currentRecursiveSequence];\n            currentRecursiveSequence = 0;\n          }\n        }\n        tree.push(vm);\n        vm = vm.$parent;\n      }\n      return '\\n\\nfound in\\n\\n' + tree\n        .map(function (vm, i) { return (\"\" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)\n            ? ((formatComponentName(vm[0])) + \"... (\" + (vm[1]) + \" recursive calls)\")\n            : formatComponentName(vm))); })\n        .join('\\n')\n    } else {\n      return (\"\\n\\n(found in \" + (formatComponentName(vm)) + \")\")\n    }\n  };\n}\n\n/*  */\n\n\nvar uid = 0;\n\n/**\n * A dep is an observable that can have multiple\n * directives subscribing to it.\n */\nvar Dep = function Dep () {\n  this.id = uid++;\n  this.subs = [];\n};\n\nDep.prototype.addSub = function addSub (sub) {\n  this.subs.push(sub);\n};\n\nDep.prototype.removeSub = function removeSub (sub) {\n  remove(this.subs, sub);\n};\n\nDep.prototype.depend = function depend () {\n  if (Dep.target) {\n    Dep.target.addDep(this);\n  }\n};\n\nDep.prototype.notify = function notify () {\n  // stabilize the subscriber list first\n  var subs = this.subs.slice();\n  for (var i = 0, l = subs.length; i < l; i++) {\n    subs[i].update();\n  }\n};\n\n// the current target watcher being evaluated.\n// this is globally unique because there could be only one\n// watcher being evaluated at any time.\nDep.target = null;\nvar targetStack = [];\n\nfunction pushTarget (_target) {\n  if (Dep.target) { targetStack.push(Dep.target); }\n  Dep.target = _target;\n}\n\nfunction popTarget () {\n  Dep.target = targetStack.pop();\n}\n\n/*  */\n\nvar VNode = function VNode (\n  tag,\n  data,\n  children,\n  text,\n  elm,\n  context,\n  componentOptions,\n  asyncFactory\n) {\n  this.tag = tag;\n  this.data = data;\n  this.children = children;\n  this.text = text;\n  this.elm = elm;\n  this.ns = undefined;\n  this.context = context;\n  this.fnContext = undefined;\n  this.fnOptions = undefined;\n  this.fnScopeId = undefined;\n  this.key = data && data.key;\n  this.componentOptions = componentOptions;\n  this.componentInstance = undefined;\n  this.parent = undefined;\n  this.raw = false;\n  this.isStatic = false;\n  this.isRootInsert = true;\n  this.isComment = false;\n  this.isCloned = false;\n  this.isOnce = false;\n  this.asyncFactory = asyncFactory;\n  this.asyncMeta = undefined;\n  this.isAsyncPlaceholder = false;\n};\n\nvar prototypeAccessors = { child: { configurable: true } };\n\n// DEPRECATED: alias for componentInstance for backwards compat.\n/* istanbul ignore next */\nprototypeAccessors.child.get = function () {\n  return this.componentInstance\n};\n\nObject.defineProperties( VNode.prototype, prototypeAccessors );\n\nvar createEmptyVNode = function (text) {\n  if ( text === void 0 ) text = '';\n\n  var node = new VNode();\n  node.text = text;\n  node.isComment = true;\n  return node\n};\n\nfunction createTextVNode (val) {\n  return new VNode(undefined, undefined, undefined, String(val))\n}\n\n// optimized shallow clone\n// used for static nodes and slot nodes because they may be reused across\n// multiple renders, cloning them avoids errors when DOM manipulations rely\n// on their elm reference.\nfunction cloneVNode (vnode) {\n  var cloned = new VNode(\n    vnode.tag,\n    vnode.data,\n    vnode.children,\n    vnode.text,\n    vnode.elm,\n    vnode.context,\n    vnode.componentOptions,\n    vnode.asyncFactory\n  );\n  cloned.ns = vnode.ns;\n  cloned.isStatic = vnode.isStatic;\n  cloned.key = vnode.key;\n  cloned.isComment = vnode.isComment;\n  cloned.fnContext = vnode.fnContext;\n  cloned.fnOptions = vnode.fnOptions;\n  cloned.fnScopeId = vnode.fnScopeId;\n  cloned.isCloned = true;\n  return cloned\n}\n\n/*\n * not type checking this file because flow doesn't play well with\n * dynamically accessing methods on Array prototype\n */\n\nvar arrayProto = Array.prototype;\nvar arrayMethods = Object.create(arrayProto);\n\nvar methodsToPatch = [\n  'push',\n  'pop',\n  'shift',\n  'unshift',\n  'splice',\n  'sort',\n  'reverse'\n];\n\n/**\n * Intercept mutating methods and emit events\n */\nmethodsToPatch.forEach(function (method) {\n  // cache original method\n  var original = arrayProto[method];\n  def(arrayMethods, method, function mutator () {\n    var args = [], len = arguments.length;\n    while ( len-- ) args[ len ] = arguments[ len ];\n\n    var result = original.apply(this, args);\n    var ob = this.__ob__;\n    var inserted;\n    switch (method) {\n      case 'push':\n      case 'unshift':\n        inserted = args;\n        break\n      case 'splice':\n        inserted = args.slice(2);\n        break\n    }\n    if (inserted) { ob.observeArray(inserted); }\n    // notify change\n    ob.dep.notify();\n    return result\n  });\n});\n\n/*  */\n\nvar arrayKeys = Object.getOwnPropertyNames(arrayMethods);\n\n/**\n * In some cases we may want to disable observation inside a component's\n * update computation.\n */\nvar shouldObserve = true;\n\nfunction toggleObserving (value) {\n  shouldObserve = value;\n}\n\n/**\n * Observer class that is attached to each observed\n * object. Once attached, the observer converts the target\n * object's property keys into getter/setters that\n * collect dependencies and dispatch updates.\n */\nvar Observer = function Observer (value) {\n  this.value = value;\n  this.dep = new Dep();\n  this.vmCount = 0;\n  def(value, '__ob__', this);\n  if (Array.isArray(value)) {\n    var augment = hasProto\n      ? protoAugment\n      : copyAugment;\n    augment(value, arrayMethods, arrayKeys);\n    this.observeArray(value);\n  } else {\n    this.walk(value);\n  }\n};\n\n/**\n * Walk through each property and convert them into\n * getter/setters. This method should only be called when\n * value type is Object.\n */\nObserver.prototype.walk = function walk (obj) {\n  var keys = Object.keys(obj);\n  for (var i = 0; i < keys.length; i++) {\n    defineReactive(obj, keys[i]);\n  }\n};\n\n/**\n * Observe a list of Array items.\n */\nObserver.prototype.observeArray = function observeArray (items) {\n  for (var i = 0, l = items.length; i < l; i++) {\n    observe(items[i]);\n  }\n};\n\n// helpers\n\n/**\n * Augment an target Object or Array by intercepting\n * the prototype chain using __proto__\n */\nfunction protoAugment (target, src, keys) {\n  /* eslint-disable no-proto */\n  target.__proto__ = src;\n  /* eslint-enable no-proto */\n}\n\n/**\n * Augment an target Object or Array by defining\n * hidden properties.\n */\n/* istanbul ignore next */\nfunction copyAugment (target, src, keys) {\n  for (var i = 0, l = keys.length; i < l; i++) {\n    var key = keys[i];\n    def(target, key, src[key]);\n  }\n}\n\n/**\n * Attempt to create an observer instance for a value,\n * returns the new observer if successfully observed,\n * or the existing observer if the value already has one.\n */\nfunction observe (value, asRootData) {\n  if (!isObject(value) || value instanceof VNode) {\n    return\n  }\n  var ob;\n  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {\n    ob = value.__ob__;\n  } else if (\n    shouldObserve &&\n    !isServerRendering() &&\n    (Array.isArray(value) || isPlainObject(value)) &&\n    Object.isExtensible(value) &&\n    !value._isVue\n  ) {\n    ob = new Observer(value);\n  }\n  if (asRootData && ob) {\n    ob.vmCount++;\n  }\n  return ob\n}\n\n/**\n * Define a reactive property on an Object.\n */\nfunction defineReactive (\n  obj,\n  key,\n  val,\n  customSetter,\n  shallow\n) {\n  var dep = new Dep();\n\n  var property = Object.getOwnPropertyDescriptor(obj, key);\n  if (property && property.configurable === false) {\n    return\n  }\n\n  // cater for pre-defined getter/setters\n  var getter = property && property.get;\n  if (!getter && arguments.length === 2) {\n    val = obj[key];\n  }\n  var setter = property && property.set;\n\n  var childOb = !shallow && observe(val);\n  Object.defineProperty(obj, key, {\n    enumerable: true,\n    configurable: true,\n    get: function reactiveGetter () {\n      var value = getter ? getter.call(obj) : val;\n      if (Dep.target) {\n        dep.depend();\n        if (childOb) {\n          childOb.dep.depend();\n          if (Array.isArray(value)) {\n            dependArray(value);\n          }\n        }\n      }\n      return value\n    },\n    set: function reactiveSetter (newVal) {\n      var value = getter ? getter.call(obj) : val;\n      /* eslint-disable no-self-compare */\n      if (newVal === value || (newVal !== newVal && value !== value)) {\n        return\n      }\n      /* eslint-enable no-self-compare */\n      if (process.env.NODE_ENV !== 'production' && customSetter) {\n        customSetter();\n      }\n      if (setter) {\n        setter.call(obj, newVal);\n      } else {\n        val = newVal;\n      }\n      childOb = !shallow && observe(newVal);\n      dep.notify();\n    }\n  });\n}\n\n/**\n * Set a property on an object. Adds the new property and\n * triggers change notification if the property doesn't\n * already exist.\n */\nfunction set (target, key, val) {\n  if (process.env.NODE_ENV !== 'production' &&\n    (isUndef(target) || isPrimitive(target))\n  ) {\n    warn((\"Cannot set reactive property on undefined, null, or primitive value: \" + ((target))));\n  }\n  if (Array.isArray(target) && isValidArrayIndex(key)) {\n    target.length = Math.max(target.length, key);\n    target.splice(key, 1, val);\n    return val\n  }\n  if (key in target && !(key in Object.prototype)) {\n    target[key] = val;\n    return val\n  }\n  var ob = (target).__ob__;\n  if (target._isVue || (ob && ob.vmCount)) {\n    process.env.NODE_ENV !== 'production' && warn(\n      'Avoid adding reactive properties to a Vue instance or its root $data ' +\n      'at runtime - declare it upfront in the data option.'\n    );\n    return val\n  }\n  if (!ob) {\n    target[key] = val;\n    return val\n  }\n  defineReactive(ob.value, key, val);\n  ob.dep.notify();\n  return val\n}\n\n/**\n * Delete a property and trigger change if necessary.\n */\nfunction del (target, key) {\n  if (process.env.NODE_ENV !== 'production' &&\n    (isUndef(target) || isPrimitive(target))\n  ) {\n    warn((\"Cannot delete reactive property on undefined, null, or primitive value: \" + ((target))));\n  }\n  if (Array.isArray(target) && isValidArrayIndex(key)) {\n    target.splice(key, 1);\n    return\n  }\n  var ob = (target).__ob__;\n  if (target._isVue || (ob && ob.vmCount)) {\n    process.env.NODE_ENV !== 'production' && warn(\n      'Avoid deleting properties on a Vue instance or its root $data ' +\n      '- just set it to null.'\n    );\n    return\n  }\n  if (!hasOwn(target, key)) {\n    return\n  }\n  delete target[key];\n  if (!ob) {\n    return\n  }\n  ob.dep.notify();\n}\n\n/**\n * Collect dependencies on array elements when the array is touched, since\n * we cannot intercept array element access like property getters.\n */\nfunction dependArray (value) {\n  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {\n    e = value[i];\n    e && e.__ob__ && e.__ob__.dep.depend();\n    if (Array.isArray(e)) {\n      dependArray(e);\n    }\n  }\n}\n\n/*  */\n\n/**\n * Option overwriting strategies are functions that handle\n * how to merge a parent option value and a child option\n * value into the final value.\n */\nvar strats = config.optionMergeStrategies;\n\n/**\n * Options with restrictions\n */\nif (process.env.NODE_ENV !== 'production') {\n  strats.el = strats.propsData = function (parent, child, vm, key) {\n    if (!vm) {\n      warn(\n        \"option \\\"\" + key + \"\\\" can only be used during instance \" +\n        'creation with the `new` keyword.'\n      );\n    }\n    return defaultStrat(parent, child)\n  };\n}\n\n/**\n * Helper that recursively merges two data objects together.\n */\nfunction mergeData (to, from) {\n  if (!from) { return to }\n  var key, toVal, fromVal;\n  var keys = Object.keys(from);\n  for (var i = 0; i < keys.length; i++) {\n    key = keys[i];\n    toVal = to[key];\n    fromVal = from[key];\n    if (!hasOwn(to, key)) {\n      set(to, key, fromVal);\n    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {\n      mergeData(toVal, fromVal);\n    }\n  }\n  return to\n}\n\n/**\n * Data\n */\nfunction mergeDataOrFn (\n  parentVal,\n  childVal,\n  vm\n) {\n  if (!vm) {\n    // in a Vue.extend merge, both should be functions\n    if (!childVal) {\n      return parentVal\n    }\n    if (!parentVal) {\n      return childVal\n    }\n    // when parentVal & childVal are both present,\n    // we need to return a function that returns the\n    // merged result of both functions... no need to\n    // check if parentVal is a function here because\n    // it has to be a function to pass previous merges.\n    return function mergedDataFn () {\n      return mergeData(\n        typeof childVal === 'function' ? childVal.call(this, this) : childVal,\n        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal\n      )\n    }\n  } else {\n    return function mergedInstanceDataFn () {\n      // instance merge\n      var instanceData = typeof childVal === 'function'\n        ? childVal.call(vm, vm)\n        : childVal;\n      var defaultData = typeof parentVal === 'function'\n        ? parentVal.call(vm, vm)\n        : parentVal;\n      if (instanceData) {\n        return mergeData(instanceData, defaultData)\n      } else {\n        return defaultData\n      }\n    }\n  }\n}\n\nstrats.data = function (\n  parentVal,\n  childVal,\n  vm\n) {\n  if (!vm) {\n    if (childVal && typeof childVal !== 'function') {\n      process.env.NODE_ENV !== 'production' && warn(\n        'The \"data\" option should be a function ' +\n        'that returns a per-instance value in component ' +\n        'definitions.',\n        vm\n      );\n\n      return parentVal\n    }\n    return mergeDataOrFn(parentVal, childVal)\n  }\n\n  return mergeDataOrFn(parentVal, childVal, vm)\n};\n\n/**\n * Hooks and props are merged as arrays.\n */\nfunction mergeHook (\n  parentVal,\n  childVal\n) {\n  return childVal\n    ? parentVal\n      ? parentVal.concat(childVal)\n      : Array.isArray(childVal)\n        ? childVal\n        : [childVal]\n    : parentVal\n}\n\nLIFECYCLE_HOOKS.forEach(function (hook) {\n  strats[hook] = mergeHook;\n});\n\n/**\n * Assets\n *\n * When a vm is present (instance creation), we need to do\n * a three-way merge between constructor options, instance\n * options and parent options.\n */\nfunction mergeAssets (\n  parentVal,\n  childVal,\n  vm,\n  key\n) {\n  var res = Object.create(parentVal || null);\n  if (childVal) {\n    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);\n    return extend(res, childVal)\n  } else {\n    return res\n  }\n}\n\nASSET_TYPES.forEach(function (type) {\n  strats[type + 's'] = mergeAssets;\n});\n\n/**\n * Watchers.\n *\n * Watchers hashes should not overwrite one\n * another, so we merge them as arrays.\n */\nstrats.watch = function (\n  parentVal,\n  childVal,\n  vm,\n  key\n) {\n  // work around Firefox's Object.prototype.watch...\n  if (parentVal === nativeWatch) { parentVal = undefined; }\n  if (childVal === nativeWatch) { childVal = undefined; }\n  /* istanbul ignore if */\n  if (!childVal) { return Object.create(parentVal || null) }\n  if (process.env.NODE_ENV !== 'production') {\n    assertObjectType(key, childVal, vm);\n  }\n  if (!parentVal) { return childVal }\n  var ret = {};\n  extend(ret, parentVal);\n  for (var key$1 in childVal) {\n    var parent = ret[key$1];\n    var child = childVal[key$1];\n    if (parent && !Array.isArray(parent)) {\n      parent = [parent];\n    }\n    ret[key$1] = parent\n      ? parent.concat(child)\n      : Array.isArray(child) ? child : [child];\n  }\n  return ret\n};\n\n/**\n * Other object hashes.\n */\nstrats.props =\nstrats.methods =\nstrats.inject =\nstrats.computed = function (\n  parentVal,\n  childVal,\n  vm,\n  key\n) {\n  if (childVal && process.env.NODE_ENV !== 'production') {\n    assertObjectType(key, childVal, vm);\n  }\n  if (!parentVal) { return childVal }\n  var ret = Object.create(null);\n  extend(ret, parentVal);\n  if (childVal) { extend(ret, childVal); }\n  return ret\n};\nstrats.provide = mergeDataOrFn;\n\n/**\n * Default strategy.\n */\nvar defaultStrat = function (parentVal, childVal) {\n  return childVal === undefined\n    ? parentVal\n    : childVal\n};\n\n/**\n * Validate component names\n */\nfunction checkComponents (options) {\n  for (var key in options.components) {\n    validateComponentName(key);\n  }\n}\n\nfunction validateComponentName (name) {\n  if (!/^[a-zA-Z][\\w-]*$/.test(name)) {\n    warn(\n      'Invalid component name: \"' + name + '\". Component names ' +\n      'can only contain alphanumeric characters and the hyphen, ' +\n      'and must start with a letter.'\n    );\n  }\n  if (isBuiltInTag(name) || config.isReservedTag(name)) {\n    warn(\n      'Do not use built-in or reserved HTML elements as component ' +\n      'id: ' + name\n    );\n  }\n}\n\n/**\n * Ensure all props option syntax are normalized into the\n * Object-based format.\n */\nfunction normalizeProps (options, vm) {\n  var props = options.props;\n  if (!props) { return }\n  var res = {};\n  var i, val, name;\n  if (Array.isArray(props)) {\n    i = props.length;\n    while (i--) {\n      val = props[i];\n      if (typeof val === 'string') {\n        name = camelize(val);\n        res[name] = { type: null };\n      } else if (process.env.NODE_ENV !== 'production') {\n        warn('props must be strings when using array syntax.');\n      }\n    }\n  } else if (isPlainObject(props)) {\n    for (var key in props) {\n      val = props[key];\n      name = camelize(key);\n      res[name] = isPlainObject(val)\n        ? val\n        : { type: val };\n    }\n  } else if (process.env.NODE_ENV !== 'production') {\n    warn(\n      \"Invalid value for option \\\"props\\\": expected an Array or an Object, \" +\n      \"but got \" + (toRawType(props)) + \".\",\n      vm\n    );\n  }\n  options.props = res;\n}\n\n/**\n * Normalize all injections into Object-based format\n */\nfunction normalizeInject (options, vm) {\n  var inject = options.inject;\n  if (!inject) { return }\n  var normalized = options.inject = {};\n  if (Array.isArray(inject)) {\n    for (var i = 0; i < inject.length; i++) {\n      normalized[inject[i]] = { from: inject[i] };\n    }\n  } else if (isPlainObject(inject)) {\n    for (var key in inject) {\n      var val = inject[key];\n      normalized[key] = isPlainObject(val)\n        ? extend({ from: key }, val)\n        : { from: val };\n    }\n  } else if (process.env.NODE_ENV !== 'production') {\n    warn(\n      \"Invalid value for option \\\"inject\\\": expected an Array or an Object, \" +\n      \"but got \" + (toRawType(inject)) + \".\",\n      vm\n    );\n  }\n}\n\n/**\n * Normalize raw function directives into object format.\n */\nfunction normalizeDirectives (options) {\n  var dirs = options.directives;\n  if (dirs) {\n    for (var key in dirs) {\n      var def = dirs[key];\n      if (typeof def === 'function') {\n        dirs[key] = { bind: def, update: def };\n      }\n    }\n  }\n}\n\nfunction assertObjectType (name, value, vm) {\n  if (!isPlainObject(value)) {\n    warn(\n      \"Invalid value for option \\\"\" + name + \"\\\": expected an Object, \" +\n      \"but got \" + (toRawType(value)) + \".\",\n      vm\n    );\n  }\n}\n\n/**\n * Merge two option objects into a new one.\n * Core utility used in both instantiation and inheritance.\n */\nfunction mergeOptions (\n  parent,\n  child,\n  vm\n) {\n  if (process.env.NODE_ENV !== 'production') {\n    checkComponents(child);\n  }\n\n  if (typeof child === 'function') {\n    child = child.options;\n  }\n\n  normalizeProps(child, vm);\n  normalizeInject(child, vm);\n  normalizeDirectives(child);\n  var extendsFrom = child.extends;\n  if (extendsFrom) {\n    parent = mergeOptions(parent, extendsFrom, vm);\n  }\n  if (child.mixins) {\n    for (var i = 0, l = child.mixins.length; i < l; i++) {\n      parent = mergeOptions(parent, child.mixins[i], vm);\n    }\n  }\n  var options = {};\n  var key;\n  for (key in parent) {\n    mergeField(key);\n  }\n  for (key in child) {\n    if (!hasOwn(parent, key)) {\n      mergeField(key);\n    }\n  }\n  function mergeField (key) {\n    var strat = strats[key] || defaultStrat;\n    options[key] = strat(parent[key], child[key], vm, key);\n  }\n  return options\n}\n\n/**\n * Resolve an asset.\n * This function is used because child instances need access\n * to assets defined in its ancestor chain.\n */\nfunction resolveAsset (\n  options,\n  type,\n  id,\n  warnMissing\n) {\n  /* istanbul ignore if */\n  if (typeof id !== 'string') {\n    return\n  }\n  var assets = options[type];\n  // check local registration variations first\n  if (hasOwn(assets, id)) { return assets[id] }\n  var camelizedId = camelize(id);\n  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }\n  var PascalCaseId = capitalize(camelizedId);\n  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }\n  // fallback to prototype chain\n  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];\n  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {\n    warn(\n      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,\n      options\n    );\n  }\n  return res\n}\n\n/*  */\n\nfunction validateProp (\n  key,\n  propOptions,\n  propsData,\n  vm\n) {\n  var prop = propOptions[key];\n  var absent = !hasOwn(propsData, key);\n  var value = propsData[key];\n  // boolean casting\n  var booleanIndex = getTypeIndex(Boolean, prop.type);\n  if (booleanIndex > -1) {\n    if (absent && !hasOwn(prop, 'default')) {\n      value = false;\n    } else if (value === '' || value === hyphenate(key)) {\n      // only cast empty string / same name to boolean if\n      // boolean has higher priority\n      var stringIndex = getTypeIndex(String, prop.type);\n      if (stringIndex < 0 || booleanIndex < stringIndex) {\n        value = true;\n      }\n    }\n  }\n  // check default value\n  if (value === undefined) {\n    value = getPropDefaultValue(vm, prop, key);\n    // since the default value is a fresh copy,\n    // make sure to observe it.\n    var prevShouldObserve = shouldObserve;\n    toggleObserving(true);\n    observe(value);\n    toggleObserving(prevShouldObserve);\n  }\n  if (\n    process.env.NODE_ENV !== 'production' &&\n    // skip validation for weex recycle-list child component props\n    !(false && isObject(value) && ('@binding' in value))\n  ) {\n    assertProp(prop, key, value, vm, absent);\n  }\n  return value\n}\n\n/**\n * Get the default value of a prop.\n */\nfunction getPropDefaultValue (vm, prop, key) {\n  // no default, return undefined\n  if (!hasOwn(prop, 'default')) {\n    return undefined\n  }\n  var def = prop.default;\n  // warn against non-factory defaults for Object & Array\n  if (process.env.NODE_ENV !== 'production' && isObject(def)) {\n    warn(\n      'Invalid default value for prop \"' + key + '\": ' +\n      'Props with type Object/Array must use a factory function ' +\n      'to return the default value.',\n      vm\n    );\n  }\n  // the raw prop value was also undefined from previous render,\n  // return previous default value to avoid unnecessary watcher trigger\n  if (vm && vm.$options.propsData &&\n    vm.$options.propsData[key] === undefined &&\n    vm._props[key] !== undefined\n  ) {\n    return vm._props[key]\n  }\n  // call factory function for non-Function types\n  // a value is Function if its prototype is function even across different execution context\n  return typeof def === 'function' && getType(prop.type) !== 'Function'\n    ? def.call(vm)\n    : def\n}\n\n/**\n * Assert whether a prop is valid.\n */\nfunction assertProp (\n  prop,\n  name,\n  value,\n  vm,\n  absent\n) {\n  if (prop.required && absent) {\n    warn(\n      'Missing required prop: \"' + name + '\"',\n      vm\n    );\n    return\n  }\n  if (value == null && !prop.required) {\n    return\n  }\n  var type = prop.type;\n  var valid = !type || type === true;\n  var expectedTypes = [];\n  if (type) {\n    if (!Array.isArray(type)) {\n      type = [type];\n    }\n    for (var i = 0; i < type.length && !valid; i++) {\n      var assertedType = assertType(value, type[i]);\n      expectedTypes.push(assertedType.expectedType || '');\n      valid = assertedType.valid;\n    }\n  }\n  if (!valid) {\n    warn(\n      \"Invalid prop: type check failed for prop \\\"\" + name + \"\\\".\" +\n      \" Expected \" + (expectedTypes.map(capitalize).join(', ')) +\n      \", got \" + (toRawType(value)) + \".\",\n      vm\n    );\n    return\n  }\n  var validator = prop.validator;\n  if (validator) {\n    if (!validator(value)) {\n      warn(\n        'Invalid prop: custom validator check failed for prop \"' + name + '\".',\n        vm\n      );\n    }\n  }\n}\n\nvar simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;\n\nfunction assertType (value, type) {\n  var valid;\n  var expectedType = getType(type);\n  if (simpleCheckRE.test(expectedType)) {\n    var t = typeof value;\n    valid = t === expectedType.toLowerCase();\n    // for primitive wrapper objects\n    if (!valid && t === 'object') {\n      valid = value instanceof type;\n    }\n  } else if (expectedType === 'Object') {\n    valid = isPlainObject(value);\n  } else if (expectedType === 'Array') {\n    valid = Array.isArray(value);\n  } else {\n    valid = value instanceof type;\n  }\n  return {\n    valid: valid,\n    expectedType: expectedType\n  }\n}\n\n/**\n * Use function string name to check built-in types,\n * because a simple equality check will fail when running\n * across different vms / iframes.\n */\nfunction getType (fn) {\n  var match = fn && fn.toString().match(/^\\s*function (\\w+)/);\n  return match ? match[1] : ''\n}\n\nfunction isSameType (a, b) {\n  return getType(a) === getType(b)\n}\n\nfunction getTypeIndex (type, expectedTypes) {\n  if (!Array.isArray(expectedTypes)) {\n    return isSameType(expectedTypes, type) ? 0 : -1\n  }\n  for (var i = 0, len = expectedTypes.length; i < len; i++) {\n    if (isSameType(expectedTypes[i], type)) {\n      return i\n    }\n  }\n  return -1\n}\n\n/*  */\n\nfunction handleError (err, vm, info) {\n  if (vm) {\n    var cur = vm;\n    while ((cur = cur.$parent)) {\n      var hooks = cur.$options.errorCaptured;\n      if (hooks) {\n        for (var i = 0; i < hooks.length; i++) {\n          try {\n            var capture = hooks[i].call(cur, err, vm, info) === false;\n            if (capture) { return }\n          } catch (e) {\n            globalHandleError(e, cur, 'errorCaptured hook');\n          }\n        }\n      }\n    }\n  }\n  globalHandleError(err, vm, info);\n}\n\nfunction globalHandleError (err, vm, info) {\n  if (config.errorHandler) {\n    try {\n      return config.errorHandler.call(null, err, vm, info)\n    } catch (e) {\n      logError(e, null, 'config.errorHandler');\n    }\n  }\n  logError(err, vm, info);\n}\n\nfunction logError (err, vm, info) {\n  if (process.env.NODE_ENV !== 'production') {\n    warn((\"Error in \" + info + \": \\\"\" + (err.toString()) + \"\\\"\"), vm);\n  }\n  /* istanbul ignore else */\n  if ((inBrowser || inWeex) && typeof console !== 'undefined') {\n    console.error(err);\n  } else {\n    throw err\n  }\n}\n\n/*  */\n/* globals MessageChannel */\n\nvar callbacks = [];\nvar pending = false;\n\nfunction flushCallbacks () {\n  pending = false;\n  var copies = callbacks.slice(0);\n  callbacks.length = 0;\n  for (var i = 0; i < copies.length; i++) {\n    copies[i]();\n  }\n}\n\n// Here we have async deferring wrappers using both microtasks and (macro) tasks.\n// In < 2.4 we used microtasks everywhere, but there are some scenarios where\n// microtasks have too high a priority and fire in between supposedly\n// sequential events (e.g. #4521, #6690) or even between bubbling of the same\n// event (#6566). However, using (macro) tasks everywhere also has subtle problems\n// when state is changed right before repaint (e.g. #6813, out-in transitions).\n// Here we use microtask by default, but expose a way to force (macro) task when\n// needed (e.g. in event handlers attached by v-on).\nvar microTimerFunc;\nvar macroTimerFunc;\nvar useMacroTask = false;\n\n// Determine (macro) task defer implementation.\n// Technically setImmediate should be the ideal choice, but it's only available\n// in IE. The only polyfill that consistently queues the callback after all DOM\n// events triggered in the same loop is by using MessageChannel.\n/* istanbul ignore if */\nif (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {\n  macroTimerFunc = function () {\n    setImmediate(flushCallbacks);\n  };\n} else if (typeof MessageChannel !== 'undefined' && (\n  isNative(MessageChannel) ||\n  // PhantomJS\n  MessageChannel.toString() === '[object MessageChannelConstructor]'\n)) {\n  var channel = new MessageChannel();\n  var port = channel.port2;\n  channel.port1.onmessage = flushCallbacks;\n  macroTimerFunc = function () {\n    port.postMessage(1);\n  };\n} else {\n  /* istanbul ignore next */\n  macroTimerFunc = function () {\n    setTimeout(flushCallbacks, 0);\n  };\n}\n\n// Determine microtask defer implementation.\n/* istanbul ignore next, $flow-disable-line */\nif (typeof Promise !== 'undefined' && isNative(Promise)) {\n  var p = Promise.resolve();\n  microTimerFunc = function () {\n    p.then(flushCallbacks);\n    // in problematic UIWebViews, Promise.then doesn't completely break, but\n    // it can get stuck in a weird state where callbacks are pushed into the\n    // microtask queue but the queue isn't being flushed, until the browser\n    // needs to do some other work, e.g. handle a timer. Therefore we can\n    // \"force\" the microtask queue to be flushed by adding an empty timer.\n    if (isIOS) { setTimeout(noop); }\n  };\n} else {\n  // fallback to macro\n  microTimerFunc = macroTimerFunc;\n}\n\n/**\n * Wrap a function so that if any code inside triggers state change,\n * the changes are queued using a (macro) task instead of a microtask.\n */\nfunction withMacroTask (fn) {\n  return fn._withTask || (fn._withTask = function () {\n    useMacroTask = true;\n    var res = fn.apply(null, arguments);\n    useMacroTask = false;\n    return res\n  })\n}\n\nfunction nextTick (cb, ctx) {\n  var _resolve;\n  callbacks.push(function () {\n    if (cb) {\n      try {\n        cb.call(ctx);\n      } catch (e) {\n        handleError(e, ctx, 'nextTick');\n      }\n    } else if (_resolve) {\n      _resolve(ctx);\n    }\n  });\n  if (!pending) {\n    pending = true;\n    if (useMacroTask) {\n      macroTimerFunc();\n    } else {\n      microTimerFunc();\n    }\n  }\n  // $flow-disable-line\n  if (!cb && typeof Promise !== 'undefined') {\n    return new Promise(function (resolve) {\n      _resolve = resolve;\n    })\n  }\n}\n\n/*  */\n\n/* not type checking this file because flow doesn't play well with Proxy */\n\nvar initProxy;\n\nif (process.env.NODE_ENV !== 'production') {\n  var allowedGlobals = makeMap(\n    'Infinity,undefined,NaN,isFinite,isNaN,' +\n    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +\n    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +\n    'require' // for Webpack/Browserify\n  );\n\n  var warnNonPresent = function (target, key) {\n    warn(\n      \"Property or method \\\"\" + key + \"\\\" is not defined on the instance but \" +\n      'referenced during render. Make sure that this property is reactive, ' +\n      'either in the data option, or for class-based components, by ' +\n      'initializing the property. ' +\n      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',\n      target\n    );\n  };\n\n  var hasProxy =\n    typeof Proxy !== 'undefined' && isNative(Proxy);\n\n  if (hasProxy) {\n    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');\n    config.keyCodes = new Proxy(config.keyCodes, {\n      set: function set (target, key, value) {\n        if (isBuiltInModifier(key)) {\n          warn((\"Avoid overwriting built-in modifier in config.keyCodes: .\" + key));\n          return false\n        } else {\n          target[key] = value;\n          return true\n        }\n      }\n    });\n  }\n\n  var hasHandler = {\n    has: function has (target, key) {\n      var has = key in target;\n      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';\n      if (!has && !isAllowed) {\n        warnNonPresent(target, key);\n      }\n      return has || !isAllowed\n    }\n  };\n\n  var getHandler = {\n    get: function get (target, key) {\n      if (typeof key === 'string' && !(key in target)) {\n        warnNonPresent(target, key);\n      }\n      return target[key]\n    }\n  };\n\n  initProxy = function initProxy (vm) {\n    if (hasProxy) {\n      // determine which proxy handler to use\n      var options = vm.$options;\n      var handlers = options.render && options.render._withStripped\n        ? getHandler\n        : hasHandler;\n      vm._renderProxy = new Proxy(vm, handlers);\n    } else {\n      vm._renderProxy = vm;\n    }\n  };\n}\n\n/*  */\n\nvar seenObjects = new _Set();\n\n/**\n * Recursively traverse an object to evoke all converted\n * getters, so that every nested property inside the object\n * is collected as a \"deep\" dependency.\n */\nfunction traverse (val) {\n  _traverse(val, seenObjects);\n  seenObjects.clear();\n}\n\nfunction _traverse (val, seen) {\n  var i, keys;\n  var isA = Array.isArray(val);\n  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {\n    return\n  }\n  if (val.__ob__) {\n    var depId = val.__ob__.dep.id;\n    if (seen.has(depId)) {\n      return\n    }\n    seen.add(depId);\n  }\n  if (isA) {\n    i = val.length;\n    while (i--) { _traverse(val[i], seen); }\n  } else {\n    keys = Object.keys(val);\n    i = keys.length;\n    while (i--) { _traverse(val[keys[i]], seen); }\n  }\n}\n\nvar mark;\nvar measure;\n\nif (process.env.NODE_ENV !== 'production') {\n  var perf = inBrowser && window.performance;\n  /* istanbul ignore if */\n  if (\n    perf &&\n    perf.mark &&\n    perf.measure &&\n    perf.clearMarks &&\n    perf.clearMeasures\n  ) {\n    mark = function (tag) { return perf.mark(tag); };\n    measure = function (name, startTag, endTag) {\n      perf.measure(name, startTag, endTag);\n      perf.clearMarks(startTag);\n      perf.clearMarks(endTag);\n      perf.clearMeasures(name);\n    };\n  }\n}\n\n/*  */\n\nvar normalizeEvent = cached(function (name) {\n  var passive = name.charAt(0) === '&';\n  name = passive ? name.slice(1) : name;\n  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first\n  name = once$$1 ? name.slice(1) : name;\n  var capture = name.charAt(0) === '!';\n  name = capture ? name.slice(1) : name;\n  return {\n    name: name,\n    once: once$$1,\n    capture: capture,\n    passive: passive\n  }\n});\n\nfunction createFnInvoker (fns) {\n  function invoker () {\n    var arguments$1 = arguments;\n\n    var fns = invoker.fns;\n    if (Array.isArray(fns)) {\n      var cloned = fns.slice();\n      for (var i = 0; i < cloned.length; i++) {\n        cloned[i].apply(null, arguments$1);\n      }\n    } else {\n      // return handler return value for single handlers\n      return fns.apply(null, arguments)\n    }\n  }\n  invoker.fns = fns;\n  return invoker\n}\n\nfunction updateListeners (\n  on,\n  oldOn,\n  add,\n  remove$$1,\n  vm\n) {\n  var name, def, cur, old, event;\n  for (name in on) {\n    def = cur = on[name];\n    old = oldOn[name];\n    event = normalizeEvent(name);\n    /* istanbul ignore if */\n    if (isUndef(cur)) {\n      process.env.NODE_ENV !== 'production' && warn(\n        \"Invalid handler for event \\\"\" + (event.name) + \"\\\": got \" + String(cur),\n        vm\n      );\n    } else if (isUndef(old)) {\n      if (isUndef(cur.fns)) {\n        cur = on[name] = createFnInvoker(cur);\n      }\n      add(event.name, cur, event.once, event.capture, event.passive, event.params);\n    } else if (cur !== old) {\n      old.fns = cur;\n      on[name] = old;\n    }\n  }\n  for (name in oldOn) {\n    if (isUndef(on[name])) {\n      event = normalizeEvent(name);\n      remove$$1(event.name, oldOn[name], event.capture);\n    }\n  }\n}\n\n/*  */\n\nfunction mergeVNodeHook (def, hookKey, hook) {\n  if (def instanceof VNode) {\n    def = def.data.hook || (def.data.hook = {});\n  }\n  var invoker;\n  var oldHook = def[hookKey];\n\n  function wrappedHook () {\n    hook.apply(this, arguments);\n    // important: remove merged hook to ensure it's called only once\n    // and prevent memory leak\n    remove(invoker.fns, wrappedHook);\n  }\n\n  if (isUndef(oldHook)) {\n    // no existing hook\n    invoker = createFnInvoker([wrappedHook]);\n  } else {\n    /* istanbul ignore if */\n    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {\n      // already a merged invoker\n      invoker = oldHook;\n      invoker.fns.push(wrappedHook);\n    } else {\n      // existing plain hook\n      invoker = createFnInvoker([oldHook, wrappedHook]);\n    }\n  }\n\n  invoker.merged = true;\n  def[hookKey] = invoker;\n}\n\n/*  */\n\nfunction extractPropsFromVNodeData (\n  data,\n  Ctor,\n  tag\n) {\n  // we are only extracting raw values here.\n  // validation and default values are handled in the child\n  // component itself.\n  var propOptions = Ctor.options.props;\n  if (isUndef(propOptions)) {\n    return\n  }\n  var res = {};\n  var attrs = data.attrs;\n  var props = data.props;\n  if (isDef(attrs) || isDef(props)) {\n    for (var key in propOptions) {\n      var altKey = hyphenate(key);\n      if (process.env.NODE_ENV !== 'production') {\n        var keyInLowerCase = key.toLowerCase();\n        if (\n          key !== keyInLowerCase &&\n          attrs && hasOwn(attrs, keyInLowerCase)\n        ) {\n          tip(\n            \"Prop \\\"\" + keyInLowerCase + \"\\\" is passed to component \" +\n            (formatComponentName(tag || Ctor)) + \", but the declared prop name is\" +\n            \" \\\"\" + key + \"\\\". \" +\n            \"Note that HTML attributes are case-insensitive and camelCased \" +\n            \"props need to use their kebab-case equivalents when using in-DOM \" +\n            \"templates. You should probably use \\\"\" + altKey + \"\\\" instead of \\\"\" + key + \"\\\".\"\n          );\n        }\n      }\n      checkProp(res, props, key, altKey, true) ||\n      checkProp(res, attrs, key, altKey, false);\n    }\n  }\n  return res\n}\n\nfunction checkProp (\n  res,\n  hash,\n  key,\n  altKey,\n  preserve\n) {\n  if (isDef(hash)) {\n    if (hasOwn(hash, key)) {\n      res[key] = hash[key];\n      if (!preserve) {\n        delete hash[key];\n      }\n      return true\n    } else if (hasOwn(hash, altKey)) {\n      res[key] = hash[altKey];\n      if (!preserve) {\n        delete hash[altKey];\n      }\n      return true\n    }\n  }\n  return false\n}\n\n/*  */\n\n// The template compiler attempts to minimize the need for normalization by\n// statically analyzing the template at compile time.\n//\n// For plain HTML markup, normalization can be completely skipped because the\n// generated render function is guaranteed to return Array<VNode>. There are\n// two cases where extra normalization is needed:\n\n// 1. When the children contains components - because a functional component\n// may return an Array instead of a single root. In this case, just a simple\n// normalization is needed - if any child is an Array, we flatten the whole\n// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep\n// because functional components already normalize their own children.\nfunction simpleNormalizeChildren (children) {\n  for (var i = 0; i < children.length; i++) {\n    if (Array.isArray(children[i])) {\n      return Array.prototype.concat.apply([], children)\n    }\n  }\n  return children\n}\n\n// 2. When the children contains constructs that always generated nested Arrays,\n// e.g. <template>, <slot>, v-for, or when the children is provided by user\n// with hand-written render functions / JSX. In such cases a full normalization\n// is needed to cater to all possible types of children values.\nfunction normalizeChildren (children) {\n  return isPrimitive(children)\n    ? [createTextVNode(children)]\n    : Array.isArray(children)\n      ? normalizeArrayChildren(children)\n      : undefined\n}\n\nfunction isTextNode (node) {\n  return isDef(node) && isDef(node.text) && isFalse(node.isComment)\n}\n\nfunction normalizeArrayChildren (children, nestedIndex) {\n  var res = [];\n  var i, c, lastIndex, last;\n  for (i = 0; i < children.length; i++) {\n    c = children[i];\n    if (isUndef(c) || typeof c === 'boolean') { continue }\n    lastIndex = res.length - 1;\n    last = res[lastIndex];\n    //  nested\n    if (Array.isArray(c)) {\n      if (c.length > 0) {\n        c = normalizeArrayChildren(c, ((nestedIndex || '') + \"_\" + i));\n        // merge adjacent text nodes\n        if (isTextNode(c[0]) && isTextNode(last)) {\n          res[lastIndex] = createTextVNode(last.text + (c[0]).text);\n          c.shift();\n        }\n        res.push.apply(res, c);\n      }\n    } else if (isPrimitive(c)) {\n      if (isTextNode(last)) {\n        // merge adjacent text nodes\n        // this is necessary for SSR hydration because text nodes are\n        // essentially merged when rendered to HTML strings\n        res[lastIndex] = createTextVNode(last.text + c);\n      } else if (c !== '') {\n        // convert primitive to vnode\n        res.push(createTextVNode(c));\n      }\n    } else {\n      if (isTextNode(c) && isTextNode(last)) {\n        // merge adjacent text nodes\n        res[lastIndex] = createTextVNode(last.text + c.text);\n      } else {\n        // default key for nested array children (likely generated by v-for)\n        if (isTrue(children._isVList) &&\n          isDef(c.tag) &&\n          isUndef(c.key) &&\n          isDef(nestedIndex)) {\n          c.key = \"__vlist\" + nestedIndex + \"_\" + i + \"__\";\n        }\n        res.push(c);\n      }\n    }\n  }\n  return res\n}\n\n/*  */\n\nfunction ensureCtor (comp, base) {\n  if (\n    comp.__esModule ||\n    (hasSymbol && comp[Symbol.toStringTag] === 'Module')\n  ) {\n    comp = comp.default;\n  }\n  return isObject(comp)\n    ? base.extend(comp)\n    : comp\n}\n\nfunction createAsyncPlaceholder (\n  factory,\n  data,\n  context,\n  children,\n  tag\n) {\n  var node = createEmptyVNode();\n  node.asyncFactory = factory;\n  node.asyncMeta = { data: data, context: context, children: children, tag: tag };\n  return node\n}\n\nfunction resolveAsyncComponent (\n  factory,\n  baseCtor,\n  context\n) {\n  if (isTrue(factory.error) && isDef(factory.errorComp)) {\n    return factory.errorComp\n  }\n\n  if (isDef(factory.resolved)) {\n    return factory.resolved\n  }\n\n  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {\n    return factory.loadingComp\n  }\n\n  if (isDef(factory.contexts)) {\n    // already pending\n    factory.contexts.push(context);\n  } else {\n    var contexts = factory.contexts = [context];\n    var sync = true;\n\n    var forceRender = function () {\n      for (var i = 0, l = contexts.length; i < l; i++) {\n        contexts[i].$forceUpdate();\n      }\n    };\n\n    var resolve = once(function (res) {\n      // cache resolved\n      factory.resolved = ensureCtor(res, baseCtor);\n      // invoke callbacks only if this is not a synchronous resolve\n      // (async resolves are shimmed as synchronous during SSR)\n      if (!sync) {\n        forceRender();\n      }\n    });\n\n    var reject = once(function (reason) {\n      process.env.NODE_ENV !== 'production' && warn(\n        \"Failed to resolve async component: \" + (String(factory)) +\n        (reason ? (\"\\nReason: \" + reason) : '')\n      );\n      if (isDef(factory.errorComp)) {\n        factory.error = true;\n        forceRender();\n      }\n    });\n\n    var res = factory(resolve, reject);\n\n    if (isObject(res)) {\n      if (typeof res.then === 'function') {\n        // () => Promise\n        if (isUndef(factory.resolved)) {\n          res.then(resolve, reject);\n        }\n      } else if (isDef(res.component) && typeof res.component.then === 'function') {\n        res.component.then(resolve, reject);\n\n        if (isDef(res.error)) {\n          factory.errorComp = ensureCtor(res.error, baseCtor);\n        }\n\n        if (isDef(res.loading)) {\n          factory.loadingComp = ensureCtor(res.loading, baseCtor);\n          if (res.delay === 0) {\n            factory.loading = true;\n          } else {\n            setTimeout(function () {\n              if (isUndef(factory.resolved) && isUndef(factory.error)) {\n                factory.loading = true;\n                forceRender();\n              }\n            }, res.delay || 200);\n          }\n        }\n\n        if (isDef(res.timeout)) {\n          setTimeout(function () {\n            if (isUndef(factory.resolved)) {\n              reject(\n                process.env.NODE_ENV !== 'production'\n                  ? (\"timeout (\" + (res.timeout) + \"ms)\")\n                  : null\n              );\n            }\n          }, res.timeout);\n        }\n      }\n    }\n\n    sync = false;\n    // return in case resolved synchronously\n    return factory.loading\n      ? factory.loadingComp\n      : factory.resolved\n  }\n}\n\n/*  */\n\nfunction isAsyncPlaceholder (node) {\n  return node.isComment && node.asyncFactory\n}\n\n/*  */\n\nfunction getFirstComponentChild (children) {\n  if (Array.isArray(children)) {\n    for (var i = 0; i < children.length; i++) {\n      var c = children[i];\n      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {\n        return c\n      }\n    }\n  }\n}\n\n/*  */\n\n/*  */\n\nfunction initEvents (vm) {\n  vm._events = Object.create(null);\n  vm._hasHookEvent = false;\n  // init parent attached events\n  var listeners = vm.$options._parentListeners;\n  if (listeners) {\n    updateComponentListeners(vm, listeners);\n  }\n}\n\nvar target;\n\nfunction add (event, fn, once) {\n  if (once) {\n    target.$once(event, fn);\n  } else {\n    target.$on(event, fn);\n  }\n}\n\nfunction remove$1 (event, fn) {\n  target.$off(event, fn);\n}\n\nfunction updateComponentListeners (\n  vm,\n  listeners,\n  oldListeners\n) {\n  target = vm;\n  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);\n  target = undefined;\n}\n\nfunction eventsMixin (Vue) {\n  var hookRE = /^hook:/;\n  Vue.prototype.$on = function (event, fn) {\n    var this$1 = this;\n\n    var vm = this;\n    if (Array.isArray(event)) {\n      for (var i = 0, l = event.length; i < l; i++) {\n        this$1.$on(event[i], fn);\n      }\n    } else {\n      (vm._events[event] || (vm._events[event] = [])).push(fn);\n      // optimize hook:event cost by using a boolean flag marked at registration\n      // instead of a hash lookup\n      if (hookRE.test(event)) {\n        vm._hasHookEvent = true;\n      }\n    }\n    return vm\n  };\n\n  Vue.prototype.$once = function (event, fn) {\n    var vm = this;\n    function on () {\n      vm.$off(event, on);\n      fn.apply(vm, arguments);\n    }\n    on.fn = fn;\n    vm.$on(event, on);\n    return vm\n  };\n\n  Vue.prototype.$off = function (event, fn) {\n    var this$1 = this;\n\n    var vm = this;\n    // all\n    if (!arguments.length) {\n      vm._events = Object.create(null);\n      return vm\n    }\n    // array of events\n    if (Array.isArray(event)) {\n      for (var i = 0, l = event.length; i < l; i++) {\n        this$1.$off(event[i], fn);\n      }\n      return vm\n    }\n    // specific event\n    var cbs = vm._events[event];\n    if (!cbs) {\n      return vm\n    }\n    if (!fn) {\n      vm._events[event] = null;\n      return vm\n    }\n    if (fn) {\n      // specific handler\n      var cb;\n      var i$1 = cbs.length;\n      while (i$1--) {\n        cb = cbs[i$1];\n        if (cb === fn || cb.fn === fn) {\n          cbs.splice(i$1, 1);\n          break\n        }\n      }\n    }\n    return vm\n  };\n\n  Vue.prototype.$emit = function (event) {\n    var vm = this;\n    if (process.env.NODE_ENV !== 'production') {\n      var lowerCaseEvent = event.toLowerCase();\n      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {\n        tip(\n          \"Event \\\"\" + lowerCaseEvent + \"\\\" is emitted in component \" +\n          (formatComponentName(vm)) + \" but the handler is registered for \\\"\" + event + \"\\\". \" +\n          \"Note that HTML attributes are case-insensitive and you cannot use \" +\n          \"v-on to listen to camelCase events when using in-DOM templates. \" +\n          \"You should probably use \\\"\" + (hyphenate(event)) + \"\\\" instead of \\\"\" + event + \"\\\".\"\n        );\n      }\n    }\n    var cbs = vm._events[event];\n    if (cbs) {\n      cbs = cbs.length > 1 ? toArray(cbs) : cbs;\n      var args = toArray(arguments, 1);\n      for (var i = 0, l = cbs.length; i < l; i++) {\n        try {\n          cbs[i].apply(vm, args);\n        } catch (e) {\n          handleError(e, vm, (\"event handler for \\\"\" + event + \"\\\"\"));\n        }\n      }\n    }\n    return vm\n  };\n}\n\n/*  */\n\n\n\n/**\n * Runtime helper for resolving raw children VNodes into a slot object.\n */\nfunction resolveSlots (\n  children,\n  context\n) {\n  var slots = {};\n  if (!children) {\n    return slots\n  }\n  for (var i = 0, l = children.length; i < l; i++) {\n    var child = children[i];\n    var data = child.data;\n    // remove slot attribute if the node is resolved as a Vue slot node\n    if (data && data.attrs && data.attrs.slot) {\n      delete data.attrs.slot;\n    }\n    // named slots should only be respected if the vnode was rendered in the\n    // same context.\n    if ((child.context === context || child.fnContext === context) &&\n      data && data.slot != null\n    ) {\n      var name = data.slot;\n      var slot = (slots[name] || (slots[name] = []));\n      if (child.tag === 'template') {\n        slot.push.apply(slot, child.children || []);\n      } else {\n        slot.push(child);\n      }\n    } else {\n      (slots.default || (slots.default = [])).push(child);\n    }\n  }\n  // ignore slots that contains only whitespace\n  for (var name$1 in slots) {\n    if (slots[name$1].every(isWhitespace)) {\n      delete slots[name$1];\n    }\n  }\n  return slots\n}\n\nfunction isWhitespace (node) {\n  return (node.isComment && !node.asyncFactory) || node.text === ' '\n}\n\nfunction resolveScopedSlots (\n  fns, // see flow/vnode\n  res\n) {\n  res = res || {};\n  for (var i = 0; i < fns.length; i++) {\n    if (Array.isArray(fns[i])) {\n      resolveScopedSlots(fns[i], res);\n    } else {\n      res[fns[i].key] = fns[i].fn;\n    }\n  }\n  return res\n}\n\n/*  */\n\nvar activeInstance = null;\nvar isUpdatingChildComponent = false;\n\nfunction initLifecycle (vm) {\n  var options = vm.$options;\n\n  // locate first non-abstract parent\n  var parent = options.parent;\n  if (parent && !options.abstract) {\n    while (parent.$options.abstract && parent.$parent) {\n      parent = parent.$parent;\n    }\n    parent.$children.push(vm);\n  }\n\n  vm.$parent = parent;\n  vm.$root = parent ? parent.$root : vm;\n\n  vm.$children = [];\n  vm.$refs = {};\n\n  vm._watcher = null;\n  vm._inactive = null;\n  vm._directInactive = false;\n  vm._isMounted = false;\n  vm._isDestroyed = false;\n  vm._isBeingDestroyed = false;\n}\n\nfunction lifecycleMixin (Vue) {\n  Vue.prototype._update = function (vnode, hydrating) {\n    var vm = this;\n    if (vm._isMounted) {\n      callHook(vm, 'beforeUpdate');\n    }\n    var prevEl = vm.$el;\n    var prevVnode = vm._vnode;\n    var prevActiveInstance = activeInstance;\n    activeInstance = vm;\n    vm._vnode = vnode;\n    // Vue.prototype.__patch__ is injected in entry points\n    // based on the rendering backend used.\n    if (!prevVnode) {\n      // initial render\n      vm.$el = vm.__patch__(\n        vm.$el, vnode, hydrating, false /* removeOnly */,\n        vm.$options._parentElm,\n        vm.$options._refElm\n      );\n      // no need for the ref nodes after initial patch\n      // this prevents keeping a detached DOM tree in memory (#5851)\n      vm.$options._parentElm = vm.$options._refElm = null;\n    } else {\n      // updates\n      vm.$el = vm.__patch__(prevVnode, vnode);\n    }\n    activeInstance = prevActiveInstance;\n    // update __vue__ reference\n    if (prevEl) {\n      prevEl.__vue__ = null;\n    }\n    if (vm.$el) {\n      vm.$el.__vue__ = vm;\n    }\n    // if parent is an HOC, update its $el as well\n    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {\n      vm.$parent.$el = vm.$el;\n    }\n    // updated hook is called by the scheduler to ensure that children are\n    // updated in a parent's updated hook.\n  };\n\n  Vue.prototype.$forceUpdate = function () {\n    var vm = this;\n    if (vm._watcher) {\n      vm._watcher.update();\n    }\n  };\n\n  Vue.prototype.$destroy = function () {\n    var vm = this;\n    if (vm._isBeingDestroyed) {\n      return\n    }\n    callHook(vm, 'beforeDestroy');\n    vm._isBeingDestroyed = true;\n    // remove self from parent\n    var parent = vm.$parent;\n    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {\n      remove(parent.$children, vm);\n    }\n    // teardown watchers\n    if (vm._watcher) {\n      vm._watcher.teardown();\n    }\n    var i = vm._watchers.length;\n    while (i--) {\n      vm._watchers[i].teardown();\n    }\n    // remove reference from data ob\n    // frozen object may not have observer.\n    if (vm._data.__ob__) {\n      vm._data.__ob__.vmCount--;\n    }\n    // call the last hook...\n    vm._isDestroyed = true;\n    // invoke destroy hooks on current rendered tree\n    vm.__patch__(vm._vnode, null);\n    // fire destroyed hook\n    callHook(vm, 'destroyed');\n    // turn off all instance listeners.\n    vm.$off();\n    // remove __vue__ reference\n    if (vm.$el) {\n      vm.$el.__vue__ = null;\n    }\n    // release circular reference (#6759)\n    if (vm.$vnode) {\n      vm.$vnode.parent = null;\n    }\n  };\n}\n\nfunction mountComponent (\n  vm,\n  el,\n  hydrating\n) {\n  vm.$el = el;\n  if (!vm.$options.render) {\n    vm.$options.render = createEmptyVNode;\n    if (process.env.NODE_ENV !== 'production') {\n      /* istanbul ignore if */\n      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||\n        vm.$options.el || el) {\n        warn(\n          'You are using the runtime-only build of Vue where the template ' +\n          'compiler is not available. Either pre-compile the templates into ' +\n          'render functions, or use the compiler-included build.',\n          vm\n        );\n      } else {\n        warn(\n          'Failed to mount component: template or render function not defined.',\n          vm\n        );\n      }\n    }\n  }\n  callHook(vm, 'beforeMount');\n\n  var updateComponent;\n  /* istanbul ignore if */\n  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n    updateComponent = function () {\n      var name = vm._name;\n      var id = vm._uid;\n      var startTag = \"vue-perf-start:\" + id;\n      var endTag = \"vue-perf-end:\" + id;\n\n      mark(startTag);\n      var vnode = vm._render();\n      mark(endTag);\n      measure((\"vue \" + name + \" render\"), startTag, endTag);\n\n      mark(startTag);\n      vm._update(vnode, hydrating);\n      mark(endTag);\n      measure((\"vue \" + name + \" patch\"), startTag, endTag);\n    };\n  } else {\n    updateComponent = function () {\n      vm._update(vm._render(), hydrating);\n    };\n  }\n\n  // we set this to vm._watcher inside the watcher's constructor\n  // since the watcher's initial patch may call $forceUpdate (e.g. inside child\n  // component's mounted hook), which relies on vm._watcher being already defined\n  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);\n  hydrating = false;\n\n  // manually mounted instance, call mounted on self\n  // mounted is called for render-created child components in its inserted hook\n  if (vm.$vnode == null) {\n    vm._isMounted = true;\n    callHook(vm, 'mounted');\n  }\n  return vm\n}\n\nfunction updateChildComponent (\n  vm,\n  propsData,\n  listeners,\n  parentVnode,\n  renderChildren\n) {\n  if (process.env.NODE_ENV !== 'production') {\n    isUpdatingChildComponent = true;\n  }\n\n  // determine whether component has slot children\n  // we need to do this before overwriting $options._renderChildren\n  var hasChildren = !!(\n    renderChildren ||               // has new static slots\n    vm.$options._renderChildren ||  // has old static slots\n    parentVnode.data.scopedSlots || // has new scoped slots\n    vm.$scopedSlots !== emptyObject // has old scoped slots\n  );\n\n  vm.$options._parentVnode = parentVnode;\n  vm.$vnode = parentVnode; // update vm's placeholder node without re-render\n\n  if (vm._vnode) { // update child tree's parent\n    vm._vnode.parent = parentVnode;\n  }\n  vm.$options._renderChildren = renderChildren;\n\n  // update $attrs and $listeners hash\n  // these are also reactive so they may trigger child update if the child\n  // used them during render\n  vm.$attrs = parentVnode.data.attrs || emptyObject;\n  vm.$listeners = listeners || emptyObject;\n\n  // update props\n  if (propsData && vm.$options.props) {\n    toggleObserving(false);\n    var props = vm._props;\n    var propKeys = vm.$options._propKeys || [];\n    for (var i = 0; i < propKeys.length; i++) {\n      var key = propKeys[i];\n      var propOptions = vm.$options.props; // wtf flow?\n      props[key] = validateProp(key, propOptions, propsData, vm);\n    }\n    toggleObserving(true);\n    // keep a copy of raw propsData\n    vm.$options.propsData = propsData;\n  }\n\n  // update listeners\n  listeners = listeners || emptyObject;\n  var oldListeners = vm.$options._parentListeners;\n  vm.$options._parentListeners = listeners;\n  updateComponentListeners(vm, listeners, oldListeners);\n\n  // resolve slots + force update if has children\n  if (hasChildren) {\n    vm.$slots = resolveSlots(renderChildren, parentVnode.context);\n    vm.$forceUpdate();\n  }\n\n  if (process.env.NODE_ENV !== 'production') {\n    isUpdatingChildComponent = false;\n  }\n}\n\nfunction isInInactiveTree (vm) {\n  while (vm && (vm = vm.$parent)) {\n    if (vm._inactive) { return true }\n  }\n  return false\n}\n\nfunction activateChildComponent (vm, direct) {\n  if (direct) {\n    vm._directInactive = false;\n    if (isInInactiveTree(vm)) {\n      return\n    }\n  } else if (vm._directInactive) {\n    return\n  }\n  if (vm._inactive || vm._inactive === null) {\n    vm._inactive = false;\n    for (var i = 0; i < vm.$children.length; i++) {\n      activateChildComponent(vm.$children[i]);\n    }\n    callHook(vm, 'activated');\n  }\n}\n\nfunction deactivateChildComponent (vm, direct) {\n  if (direct) {\n    vm._directInactive = true;\n    if (isInInactiveTree(vm)) {\n      return\n    }\n  }\n  if (!vm._inactive) {\n    vm._inactive = true;\n    for (var i = 0; i < vm.$children.length; i++) {\n      deactivateChildComponent(vm.$children[i]);\n    }\n    callHook(vm, 'deactivated');\n  }\n}\n\nfunction callHook (vm, hook) {\n  // #7573 disable dep collection when invoking lifecycle hooks\n  pushTarget();\n  var handlers = vm.$options[hook];\n  if (handlers) {\n    for (var i = 0, j = handlers.length; i < j; i++) {\n      try {\n        handlers[i].call(vm);\n      } catch (e) {\n        handleError(e, vm, (hook + \" hook\"));\n      }\n    }\n  }\n  if (vm._hasHookEvent) {\n    vm.$emit('hook:' + hook);\n  }\n  popTarget();\n}\n\n/*  */\n\n\nvar MAX_UPDATE_COUNT = 100;\n\nvar queue = [];\nvar activatedChildren = [];\nvar has = {};\nvar circular = {};\nvar waiting = false;\nvar flushing = false;\nvar index = 0;\n\n/**\n * Reset the scheduler's state.\n */\nfunction resetSchedulerState () {\n  index = queue.length = activatedChildren.length = 0;\n  has = {};\n  if (process.env.NODE_ENV !== 'production') {\n    circular = {};\n  }\n  waiting = flushing = false;\n}\n\n/**\n * Flush both queues and run the watchers.\n */\nfunction flushSchedulerQueue () {\n  flushing = true;\n  var watcher, id;\n\n  // Sort queue before flush.\n  // This ensures that:\n  // 1. Components are updated from parent to child. (because parent is always\n  //    created before the child)\n  // 2. A component's user watchers are run before its render watcher (because\n  //    user watchers are created before the render watcher)\n  // 3. If a component is destroyed during a parent component's watcher run,\n  //    its watchers can be skipped.\n  queue.sort(function (a, b) { return a.id - b.id; });\n\n  // do not cache length because more watchers might be pushed\n  // as we run existing watchers\n  for (index = 0; index < queue.length; index++) {\n    watcher = queue[index];\n    id = watcher.id;\n    has[id] = null;\n    watcher.run();\n    // in dev build, check and stop circular updates.\n    if (process.env.NODE_ENV !== 'production' && has[id] != null) {\n      circular[id] = (circular[id] || 0) + 1;\n      if (circular[id] > MAX_UPDATE_COUNT) {\n        warn(\n          'You may have an infinite update loop ' + (\n            watcher.user\n              ? (\"in watcher with expression \\\"\" + (watcher.expression) + \"\\\"\")\n              : \"in a component render function.\"\n          ),\n          watcher.vm\n        );\n        break\n      }\n    }\n  }\n\n  // keep copies of post queues before resetting state\n  var activatedQueue = activatedChildren.slice();\n  var updatedQueue = queue.slice();\n\n  resetSchedulerState();\n\n  // call component updated and activated hooks\n  callActivatedHooks(activatedQueue);\n  callUpdatedHooks(updatedQueue);\n\n  // devtool hook\n  /* istanbul ignore if */\n  if (devtools && config.devtools) {\n    devtools.emit('flush');\n  }\n}\n\nfunction callUpdatedHooks (queue) {\n  var i = queue.length;\n  while (i--) {\n    var watcher = queue[i];\n    var vm = watcher.vm;\n    if (vm._watcher === watcher && vm._isMounted) {\n      callHook(vm, 'updated');\n    }\n  }\n}\n\n/**\n * Queue a kept-alive component that was activated during patch.\n * The queue will be processed after the entire tree has been patched.\n */\nfunction queueActivatedComponent (vm) {\n  // setting _inactive to false here so that a render function can\n  // rely on checking whether it's in an inactive tree (e.g. router-view)\n  vm._inactive = false;\n  activatedChildren.push(vm);\n}\n\nfunction callActivatedHooks (queue) {\n  for (var i = 0; i < queue.length; i++) {\n    queue[i]._inactive = true;\n    activateChildComponent(queue[i], true /* true */);\n  }\n}\n\n/**\n * Push a watcher into the watcher queue.\n * Jobs with duplicate IDs will be skipped unless it's\n * pushed when the queue is being flushed.\n */\nfunction queueWatcher (watcher) {\n  var id = watcher.id;\n  if (has[id] == null) {\n    has[id] = true;\n    if (!flushing) {\n      queue.push(watcher);\n    } else {\n      // if already flushing, splice the watcher based on its id\n      // if already past its id, it will be run next immediately.\n      var i = queue.length - 1;\n      while (i > index && queue[i].id > watcher.id) {\n        i--;\n      }\n      queue.splice(i + 1, 0, watcher);\n    }\n    // queue the flush\n    if (!waiting) {\n      waiting = true;\n      nextTick(flushSchedulerQueue);\n    }\n  }\n}\n\n/*  */\n\nvar uid$1 = 0;\n\n/**\n * A watcher parses an expression, collects dependencies,\n * and fires callback when the expression value changes.\n * This is used for both the $watch() api and directives.\n */\nvar Watcher = function Watcher (\n  vm,\n  expOrFn,\n  cb,\n  options,\n  isRenderWatcher\n) {\n  this.vm = vm;\n  if (isRenderWatcher) {\n    vm._watcher = this;\n  }\n  vm._watchers.push(this);\n  // options\n  if (options) {\n    this.deep = !!options.deep;\n    this.user = !!options.user;\n    this.lazy = !!options.lazy;\n    this.sync = !!options.sync;\n  } else {\n    this.deep = this.user = this.lazy = this.sync = false;\n  }\n  this.cb = cb;\n  this.id = ++uid$1; // uid for batching\n  this.active = true;\n  this.dirty = this.lazy; // for lazy watchers\n  this.deps = [];\n  this.newDeps = [];\n  this.depIds = new _Set();\n  this.newDepIds = new _Set();\n  this.expression = process.env.NODE_ENV !== 'production'\n    ? expOrFn.toString()\n    : '';\n  // parse expression for getter\n  if (typeof expOrFn === 'function') {\n    this.getter = expOrFn;\n  } else {\n    this.getter = parsePath(expOrFn);\n    if (!this.getter) {\n      this.getter = function () {};\n      process.env.NODE_ENV !== 'production' && warn(\n        \"Failed watching path: \\\"\" + expOrFn + \"\\\" \" +\n        'Watcher only accepts simple dot-delimited paths. ' +\n        'For full control, use a function instead.',\n        vm\n      );\n    }\n  }\n  this.value = this.lazy\n    ? undefined\n    : this.get();\n};\n\n/**\n * Evaluate the getter, and re-collect dependencies.\n */\nWatcher.prototype.get = function get () {\n  pushTarget(this);\n  var value;\n  var vm = this.vm;\n  try {\n    value = this.getter.call(vm, vm);\n  } catch (e) {\n    if (this.user) {\n      handleError(e, vm, (\"getter for watcher \\\"\" + (this.expression) + \"\\\"\"));\n    } else {\n      throw e\n    }\n  } finally {\n    // \"touch\" every property so they are all tracked as\n    // dependencies for deep watching\n    if (this.deep) {\n      traverse(value);\n    }\n    popTarget();\n    this.cleanupDeps();\n  }\n  return value\n};\n\n/**\n * Add a dependency to this directive.\n */\nWatcher.prototype.addDep = function addDep (dep) {\n  var id = dep.id;\n  if (!this.newDepIds.has(id)) {\n    this.newDepIds.add(id);\n    this.newDeps.push(dep);\n    if (!this.depIds.has(id)) {\n      dep.addSub(this);\n    }\n  }\n};\n\n/**\n * Clean up for dependency collection.\n */\nWatcher.prototype.cleanupDeps = function cleanupDeps () {\n    var this$1 = this;\n\n  var i = this.deps.length;\n  while (i--) {\n    var dep = this$1.deps[i];\n    if (!this$1.newDepIds.has(dep.id)) {\n      dep.removeSub(this$1);\n    }\n  }\n  var tmp = this.depIds;\n  this.depIds = this.newDepIds;\n  this.newDepIds = tmp;\n  this.newDepIds.clear();\n  tmp = this.deps;\n  this.deps = this.newDeps;\n  this.newDeps = tmp;\n  this.newDeps.length = 0;\n};\n\n/**\n * Subscriber interface.\n * Will be called when a dependency changes.\n */\nWatcher.prototype.update = function update () {\n  /* istanbul ignore else */\n  if (this.lazy) {\n    this.dirty = true;\n  } else if (this.sync) {\n    this.run();\n  } else {\n    queueWatcher(this);\n  }\n};\n\n/**\n * Scheduler job interface.\n * Will be called by the scheduler.\n */\nWatcher.prototype.run = function run () {\n  if (this.active) {\n    var value = this.get();\n    if (\n      value !== this.value ||\n      // Deep watchers and watchers on Object/Arrays should fire even\n      // when the value is the same, because the value may\n      // have mutated.\n      isObject(value) ||\n      this.deep\n    ) {\n      // set new value\n      var oldValue = this.value;\n      this.value = value;\n      if (this.user) {\n        try {\n          this.cb.call(this.vm, value, oldValue);\n        } catch (e) {\n          handleError(e, this.vm, (\"callback for watcher \\\"\" + (this.expression) + \"\\\"\"));\n        }\n      } else {\n        this.cb.call(this.vm, value, oldValue);\n      }\n    }\n  }\n};\n\n/**\n * Evaluate the value of the watcher.\n * This only gets called for lazy watchers.\n */\nWatcher.prototype.evaluate = function evaluate () {\n  this.value = this.get();\n  this.dirty = false;\n};\n\n/**\n * Depend on all deps collected by this watcher.\n */\nWatcher.prototype.depend = function depend () {\n    var this$1 = this;\n\n  var i = this.deps.length;\n  while (i--) {\n    this$1.deps[i].depend();\n  }\n};\n\n/**\n * Remove self from all dependencies' subscriber list.\n */\nWatcher.prototype.teardown = function teardown () {\n    var this$1 = this;\n\n  if (this.active) {\n    // remove self from vm's watcher list\n    // this is a somewhat expensive operation so we skip it\n    // if the vm is being destroyed.\n    if (!this.vm._isBeingDestroyed) {\n      remove(this.vm._watchers, this);\n    }\n    var i = this.deps.length;\n    while (i--) {\n      this$1.deps[i].removeSub(this$1);\n    }\n    this.active = false;\n  }\n};\n\n/*  */\n\nvar sharedPropertyDefinition = {\n  enumerable: true,\n  configurable: true,\n  get: noop,\n  set: noop\n};\n\nfunction proxy (target, sourceKey, key) {\n  sharedPropertyDefinition.get = function proxyGetter () {\n    return this[sourceKey][key]\n  };\n  sharedPropertyDefinition.set = function proxySetter (val) {\n    this[sourceKey][key] = val;\n  };\n  Object.defineProperty(target, key, sharedPropertyDefinition);\n}\n\nfunction initState (vm) {\n  vm._watchers = [];\n  var opts = vm.$options;\n  if (opts.props) { initProps(vm, opts.props); }\n  if (opts.methods) { initMethods(vm, opts.methods); }\n  if (opts.data) {\n    initData(vm);\n  } else {\n    observe(vm._data = {}, true /* asRootData */);\n  }\n  if (opts.computed) { initComputed(vm, opts.computed); }\n  if (opts.watch && opts.watch !== nativeWatch) {\n    initWatch(vm, opts.watch);\n  }\n}\n\nfunction initProps (vm, propsOptions) {\n  var propsData = vm.$options.propsData || {};\n  var props = vm._props = {};\n  // cache prop keys so that future props updates can iterate using Array\n  // instead of dynamic object key enumeration.\n  var keys = vm.$options._propKeys = [];\n  var isRoot = !vm.$parent;\n  // root instance props should be converted\n  if (!isRoot) {\n    toggleObserving(false);\n  }\n  var loop = function ( key ) {\n    keys.push(key);\n    var value = validateProp(key, propsOptions, propsData, vm);\n    /* istanbul ignore else */\n    if (process.env.NODE_ENV !== 'production') {\n      var hyphenatedKey = hyphenate(key);\n      if (isReservedAttribute(hyphenatedKey) ||\n          config.isReservedAttr(hyphenatedKey)) {\n        warn(\n          (\"\\\"\" + hyphenatedKey + \"\\\" is a reserved attribute and cannot be used as component prop.\"),\n          vm\n        );\n      }\n      defineReactive(props, key, value, function () {\n        if (vm.$parent && !isUpdatingChildComponent) {\n          warn(\n            \"Avoid mutating a prop directly since the value will be \" +\n            \"overwritten whenever the parent component re-renders. \" +\n            \"Instead, use a data or computed property based on the prop's \" +\n            \"value. Prop being mutated: \\\"\" + key + \"\\\"\",\n            vm\n          );\n        }\n      });\n    } else {\n      defineReactive(props, key, value);\n    }\n    // static props are already proxied on the component's prototype\n    // during Vue.extend(). We only need to proxy props defined at\n    // instantiation here.\n    if (!(key in vm)) {\n      proxy(vm, \"_props\", key);\n    }\n  };\n\n  for (var key in propsOptions) loop( key );\n  toggleObserving(true);\n}\n\nfunction initData (vm) {\n  var data = vm.$options.data;\n  data = vm._data = typeof data === 'function'\n    ? getData(data, vm)\n    : data || {};\n  if (!isPlainObject(data)) {\n    data = {};\n    process.env.NODE_ENV !== 'production' && warn(\n      'data functions should return an object:\\n' +\n      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',\n      vm\n    );\n  }\n  // proxy data on instance\n  var keys = Object.keys(data);\n  var props = vm.$options.props;\n  var methods = vm.$options.methods;\n  var i = keys.length;\n  while (i--) {\n    var key = keys[i];\n    if (process.env.NODE_ENV !== 'production') {\n      if (methods && hasOwn(methods, key)) {\n        warn(\n          (\"Method \\\"\" + key + \"\\\" has already been defined as a data property.\"),\n          vm\n        );\n      }\n    }\n    if (props && hasOwn(props, key)) {\n      process.env.NODE_ENV !== 'production' && warn(\n        \"The data property \\\"\" + key + \"\\\" is already declared as a prop. \" +\n        \"Use prop default value instead.\",\n        vm\n      );\n    } else if (!isReserved(key)) {\n      proxy(vm, \"_data\", key);\n    }\n  }\n  // observe data\n  observe(data, true /* asRootData */);\n}\n\nfunction getData (data, vm) {\n  // #7573 disable dep collection when invoking data getters\n  pushTarget();\n  try {\n    return data.call(vm, vm)\n  } catch (e) {\n    handleError(e, vm, \"data()\");\n    return {}\n  } finally {\n    popTarget();\n  }\n}\n\nvar computedWatcherOptions = { lazy: true };\n\nfunction initComputed (vm, computed) {\n  // $flow-disable-line\n  var watchers = vm._computedWatchers = Object.create(null);\n  // computed properties are just getters during SSR\n  var isSSR = isServerRendering();\n\n  for (var key in computed) {\n    var userDef = computed[key];\n    var getter = typeof userDef === 'function' ? userDef : userDef.get;\n    if (process.env.NODE_ENV !== 'production' && getter == null) {\n      warn(\n        (\"Getter is missing for computed property \\\"\" + key + \"\\\".\"),\n        vm\n      );\n    }\n\n    if (!isSSR) {\n      // create internal watcher for the computed property.\n      watchers[key] = new Watcher(\n        vm,\n        getter || noop,\n        noop,\n        computedWatcherOptions\n      );\n    }\n\n    // component-defined computed properties are already defined on the\n    // component prototype. We only need to define computed properties defined\n    // at instantiation here.\n    if (!(key in vm)) {\n      defineComputed(vm, key, userDef);\n    } else if (process.env.NODE_ENV !== 'production') {\n      if (key in vm.$data) {\n        warn((\"The computed property \\\"\" + key + \"\\\" is already defined in data.\"), vm);\n      } else if (vm.$options.props && key in vm.$options.props) {\n        warn((\"The computed property \\\"\" + key + \"\\\" is already defined as a prop.\"), vm);\n      }\n    }\n  }\n}\n\nfunction defineComputed (\n  target,\n  key,\n  userDef\n) {\n  var shouldCache = !isServerRendering();\n  if (typeof userDef === 'function') {\n    sharedPropertyDefinition.get = shouldCache\n      ? createComputedGetter(key)\n      : userDef;\n    sharedPropertyDefinition.set = noop;\n  } else {\n    sharedPropertyDefinition.get = userDef.get\n      ? shouldCache && userDef.cache !== false\n        ? createComputedGetter(key)\n        : userDef.get\n      : noop;\n    sharedPropertyDefinition.set = userDef.set\n      ? userDef.set\n      : noop;\n  }\n  if (process.env.NODE_ENV !== 'production' &&\n      sharedPropertyDefinition.set === noop) {\n    sharedPropertyDefinition.set = function () {\n      warn(\n        (\"Computed property \\\"\" + key + \"\\\" was assigned to but it has no setter.\"),\n        this\n      );\n    };\n  }\n  Object.defineProperty(target, key, sharedPropertyDefinition);\n}\n\nfunction createComputedGetter (key) {\n  return function computedGetter () {\n    var watcher = this._computedWatchers && this._computedWatchers[key];\n    if (watcher) {\n      if (watcher.dirty) {\n        watcher.evaluate();\n      }\n      if (Dep.target) {\n        watcher.depend();\n      }\n      return watcher.value\n    }\n  }\n}\n\nfunction initMethods (vm, methods) {\n  var props = vm.$options.props;\n  for (var key in methods) {\n    if (process.env.NODE_ENV !== 'production') {\n      if (methods[key] == null) {\n        warn(\n          \"Method \\\"\" + key + \"\\\" has an undefined value in the component definition. \" +\n          \"Did you reference the function correctly?\",\n          vm\n        );\n      }\n      if (props && hasOwn(props, key)) {\n        warn(\n          (\"Method \\\"\" + key + \"\\\" has already been defined as a prop.\"),\n          vm\n        );\n      }\n      if ((key in vm) && isReserved(key)) {\n        warn(\n          \"Method \\\"\" + key + \"\\\" conflicts with an existing Vue instance method. \" +\n          \"Avoid defining component methods that start with _ or $.\"\n        );\n      }\n    }\n    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);\n  }\n}\n\nfunction initWatch (vm, watch) {\n  for (var key in watch) {\n    var handler = watch[key];\n    if (Array.isArray(handler)) {\n      for (var i = 0; i < handler.length; i++) {\n        createWatcher(vm, key, handler[i]);\n      }\n    } else {\n      createWatcher(vm, key, handler);\n    }\n  }\n}\n\nfunction createWatcher (\n  vm,\n  expOrFn,\n  handler,\n  options\n) {\n  if (isPlainObject(handler)) {\n    options = handler;\n    handler = handler.handler;\n  }\n  if (typeof handler === 'string') {\n    handler = vm[handler];\n  }\n  return vm.$watch(expOrFn, handler, options)\n}\n\nfunction stateMixin (Vue) {\n  // flow somehow has problems with directly declared definition object\n  // when using Object.defineProperty, so we have to procedurally build up\n  // the object here.\n  var dataDef = {};\n  dataDef.get = function () { return this._data };\n  var propsDef = {};\n  propsDef.get = function () { return this._props };\n  if (process.env.NODE_ENV !== 'production') {\n    dataDef.set = function (newData) {\n      warn(\n        'Avoid replacing instance root $data. ' +\n        'Use nested data properties instead.',\n        this\n      );\n    };\n    propsDef.set = function () {\n      warn(\"$props is readonly.\", this);\n    };\n  }\n  Object.defineProperty(Vue.prototype, '$data', dataDef);\n  Object.defineProperty(Vue.prototype, '$props', propsDef);\n\n  Vue.prototype.$set = set;\n  Vue.prototype.$delete = del;\n\n  Vue.prototype.$watch = function (\n    expOrFn,\n    cb,\n    options\n  ) {\n    var vm = this;\n    if (isPlainObject(cb)) {\n      return createWatcher(vm, expOrFn, cb, options)\n    }\n    options = options || {};\n    options.user = true;\n    var watcher = new Watcher(vm, expOrFn, cb, options);\n    if (options.immediate) {\n      cb.call(vm, watcher.value);\n    }\n    return function unwatchFn () {\n      watcher.teardown();\n    }\n  };\n}\n\n/*  */\n\nfunction initProvide (vm) {\n  var provide = vm.$options.provide;\n  if (provide) {\n    vm._provided = typeof provide === 'function'\n      ? provide.call(vm)\n      : provide;\n  }\n}\n\nfunction initInjections (vm) {\n  var result = resolveInject(vm.$options.inject, vm);\n  if (result) {\n    toggleObserving(false);\n    Object.keys(result).forEach(function (key) {\n      /* istanbul ignore else */\n      if (process.env.NODE_ENV !== 'production') {\n        defineReactive(vm, key, result[key], function () {\n          warn(\n            \"Avoid mutating an injected value directly since the changes will be \" +\n            \"overwritten whenever the provided component re-renders. \" +\n            \"injection being mutated: \\\"\" + key + \"\\\"\",\n            vm\n          );\n        });\n      } else {\n        defineReactive(vm, key, result[key]);\n      }\n    });\n    toggleObserving(true);\n  }\n}\n\nfunction resolveInject (inject, vm) {\n  if (inject) {\n    // inject is :any because flow is not smart enough to figure out cached\n    var result = Object.create(null);\n    var keys = hasSymbol\n      ? Reflect.ownKeys(inject).filter(function (key) {\n        /* istanbul ignore next */\n        return Object.getOwnPropertyDescriptor(inject, key).enumerable\n      })\n      : Object.keys(inject);\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i];\n      var provideKey = inject[key].from;\n      var source = vm;\n      while (source) {\n        if (source._provided && hasOwn(source._provided, provideKey)) {\n          result[key] = source._provided[provideKey];\n          break\n        }\n        source = source.$parent;\n      }\n      if (!source) {\n        if ('default' in inject[key]) {\n          var provideDefault = inject[key].default;\n          result[key] = typeof provideDefault === 'function'\n            ? provideDefault.call(vm)\n            : provideDefault;\n        } else if (process.env.NODE_ENV !== 'production') {\n          warn((\"Injection \\\"\" + key + \"\\\" not found\"), vm);\n        }\n      }\n    }\n    return result\n  }\n}\n\n/*  */\n\n/**\n * Runtime helper for rendering v-for lists.\n */\nfunction renderList (\n  val,\n  render\n) {\n  var ret, i, l, keys, key;\n  if (Array.isArray(val) || typeof val === 'string') {\n    ret = new Array(val.length);\n    for (i = 0, l = val.length; i < l; i++) {\n      ret[i] = render(val[i], i);\n    }\n  } else if (typeof val === 'number') {\n    ret = new Array(val);\n    for (i = 0; i < val; i++) {\n      ret[i] = render(i + 1, i);\n    }\n  } else if (isObject(val)) {\n    keys = Object.keys(val);\n    ret = new Array(keys.length);\n    for (i = 0, l = keys.length; i < l; i++) {\n      key = keys[i];\n      ret[i] = render(val[key], key, i);\n    }\n  }\n  if (isDef(ret)) {\n    (ret)._isVList = true;\n  }\n  return ret\n}\n\n/*  */\n\n/**\n * Runtime helper for rendering <slot>\n */\nfunction renderSlot (\n  name,\n  fallback,\n  props,\n  bindObject\n) {\n  var scopedSlotFn = this.$scopedSlots[name];\n  var nodes;\n  if (scopedSlotFn) { // scoped slot\n    props = props || {};\n    if (bindObject) {\n      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {\n        warn(\n          'slot v-bind without argument expects an Object',\n          this\n        );\n      }\n      props = extend(extend({}, bindObject), props);\n    }\n    nodes = scopedSlotFn(props) || fallback;\n  } else {\n    var slotNodes = this.$slots[name];\n    // warn duplicate slot usage\n    if (slotNodes) {\n      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {\n        warn(\n          \"Duplicate presence of slot \\\"\" + name + \"\\\" found in the same render tree \" +\n          \"- this will likely cause render errors.\",\n          this\n        );\n      }\n      slotNodes._rendered = true;\n    }\n    nodes = slotNodes || fallback;\n  }\n\n  var target = props && props.slot;\n  if (target) {\n    return this.$createElement('template', { slot: target }, nodes)\n  } else {\n    return nodes\n  }\n}\n\n/*  */\n\n/**\n * Runtime helper for resolving filters\n */\nfunction resolveFilter (id) {\n  return resolveAsset(this.$options, 'filters', id, true) || identity\n}\n\n/*  */\n\nfunction isKeyNotMatch (expect, actual) {\n  if (Array.isArray(expect)) {\n    return expect.indexOf(actual) === -1\n  } else {\n    return expect !== actual\n  }\n}\n\n/**\n * Runtime helper for checking keyCodes from config.\n * exposed as Vue.prototype._k\n * passing in eventKeyName as last argument separately for backwards compat\n */\nfunction checkKeyCodes (\n  eventKeyCode,\n  key,\n  builtInKeyCode,\n  eventKeyName,\n  builtInKeyName\n) {\n  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;\n  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {\n    return isKeyNotMatch(builtInKeyName, eventKeyName)\n  } else if (mappedKeyCode) {\n    return isKeyNotMatch(mappedKeyCode, eventKeyCode)\n  } else if (eventKeyName) {\n    return hyphenate(eventKeyName) !== key\n  }\n}\n\n/*  */\n\n/**\n * Runtime helper for merging v-bind=\"object\" into a VNode's data.\n */\nfunction bindObjectProps (\n  data,\n  tag,\n  value,\n  asProp,\n  isSync\n) {\n  if (value) {\n    if (!isObject(value)) {\n      process.env.NODE_ENV !== 'production' && warn(\n        'v-bind without argument expects an Object or Array value',\n        this\n      );\n    } else {\n      if (Array.isArray(value)) {\n        value = toObject(value);\n      }\n      var hash;\n      var loop = function ( key ) {\n        if (\n          key === 'class' ||\n          key === 'style' ||\n          isReservedAttribute(key)\n        ) {\n          hash = data;\n        } else {\n          var type = data.attrs && data.attrs.type;\n          hash = asProp || config.mustUseProp(tag, type, key)\n            ? data.domProps || (data.domProps = {})\n            : data.attrs || (data.attrs = {});\n        }\n        if (!(key in hash)) {\n          hash[key] = value[key];\n\n          if (isSync) {\n            var on = data.on || (data.on = {});\n            on[(\"update:\" + key)] = function ($event) {\n              value[key] = $event;\n            };\n          }\n        }\n      };\n\n      for (var key in value) loop( key );\n    }\n  }\n  return data\n}\n\n/*  */\n\n/**\n * Runtime helper for rendering static trees.\n */\nfunction renderStatic (\n  index,\n  isInFor\n) {\n  var cached = this._staticTrees || (this._staticTrees = []);\n  var tree = cached[index];\n  // if has already-rendered static tree and not inside v-for,\n  // we can reuse the same tree.\n  if (tree && !isInFor) {\n    return tree\n  }\n  // otherwise, render a fresh tree.\n  tree = cached[index] = this.$options.staticRenderFns[index].call(\n    this._renderProxy,\n    null,\n    this // for render fns generated for functional component templates\n  );\n  markStatic(tree, (\"__static__\" + index), false);\n  return tree\n}\n\n/**\n * Runtime helper for v-once.\n * Effectively it means marking the node as static with a unique key.\n */\nfunction markOnce (\n  tree,\n  index,\n  key\n) {\n  markStatic(tree, (\"__once__\" + index + (key ? (\"_\" + key) : \"\")), true);\n  return tree\n}\n\nfunction markStatic (\n  tree,\n  key,\n  isOnce\n) {\n  if (Array.isArray(tree)) {\n    for (var i = 0; i < tree.length; i++) {\n      if (tree[i] && typeof tree[i] !== 'string') {\n        markStaticNode(tree[i], (key + \"_\" + i), isOnce);\n      }\n    }\n  } else {\n    markStaticNode(tree, key, isOnce);\n  }\n}\n\nfunction markStaticNode (node, key, isOnce) {\n  node.isStatic = true;\n  node.key = key;\n  node.isOnce = isOnce;\n}\n\n/*  */\n\nfunction bindObjectListeners (data, value) {\n  if (value) {\n    if (!isPlainObject(value)) {\n      process.env.NODE_ENV !== 'production' && warn(\n        'v-on without argument expects an Object value',\n        this\n      );\n    } else {\n      var on = data.on = data.on ? extend({}, data.on) : {};\n      for (var key in value) {\n        var existing = on[key];\n        var ours = value[key];\n        on[key] = existing ? [].concat(existing, ours) : ours;\n      }\n    }\n  }\n  return data\n}\n\n/*  */\n\nfunction installRenderHelpers (target) {\n  target._o = markOnce;\n  target._n = toNumber;\n  target._s = toString;\n  target._l = renderList;\n  target._t = renderSlot;\n  target._q = looseEqual;\n  target._i = looseIndexOf;\n  target._m = renderStatic;\n  target._f = resolveFilter;\n  target._k = checkKeyCodes;\n  target._b = bindObjectProps;\n  target._v = createTextVNode;\n  target._e = createEmptyVNode;\n  target._u = resolveScopedSlots;\n  target._g = bindObjectListeners;\n}\n\n/*  */\n\nfunction FunctionalRenderContext (\n  data,\n  props,\n  children,\n  parent,\n  Ctor\n) {\n  var options = Ctor.options;\n  // ensure the createElement function in functional components\n  // gets a unique context - this is necessary for correct named slot check\n  var contextVm;\n  if (hasOwn(parent, '_uid')) {\n    contextVm = Object.create(parent);\n    // $flow-disable-line\n    contextVm._original = parent;\n  } else {\n    // the context vm passed in is a functional context as well.\n    // in this case we want to make sure we are able to get a hold to the\n    // real context instance.\n    contextVm = parent;\n    // $flow-disable-line\n    parent = parent._original;\n  }\n  var isCompiled = isTrue(options._compiled);\n  var needNormalization = !isCompiled;\n\n  this.data = data;\n  this.props = props;\n  this.children = children;\n  this.parent = parent;\n  this.listeners = data.on || emptyObject;\n  this.injections = resolveInject(options.inject, parent);\n  this.slots = function () { return resolveSlots(children, parent); };\n\n  // support for compiled functional template\n  if (isCompiled) {\n    // exposing $options for renderStatic()\n    this.$options = options;\n    // pre-resolve slots for renderSlot()\n    this.$slots = this.slots();\n    this.$scopedSlots = data.scopedSlots || emptyObject;\n  }\n\n  if (options._scopeId) {\n    this._c = function (a, b, c, d) {\n      var vnode = createElement(contextVm, a, b, c, d, needNormalization);\n      if (vnode && !Array.isArray(vnode)) {\n        vnode.fnScopeId = options._scopeId;\n        vnode.fnContext = parent;\n      }\n      return vnode\n    };\n  } else {\n    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };\n  }\n}\n\ninstallRenderHelpers(FunctionalRenderContext.prototype);\n\nfunction createFunctionalComponent (\n  Ctor,\n  propsData,\n  data,\n  contextVm,\n  children\n) {\n  var options = Ctor.options;\n  var props = {};\n  var propOptions = options.props;\n  if (isDef(propOptions)) {\n    for (var key in propOptions) {\n      props[key] = validateProp(key, propOptions, propsData || emptyObject);\n    }\n  } else {\n    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }\n    if (isDef(data.props)) { mergeProps(props, data.props); }\n  }\n\n  var renderContext = new FunctionalRenderContext(\n    data,\n    props,\n    children,\n    contextVm,\n    Ctor\n  );\n\n  var vnode = options.render.call(null, renderContext._c, renderContext);\n\n  if (vnode instanceof VNode) {\n    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)\n  } else if (Array.isArray(vnode)) {\n    var vnodes = normalizeChildren(vnode) || [];\n    var res = new Array(vnodes.length);\n    for (var i = 0; i < vnodes.length; i++) {\n      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);\n    }\n    return res\n  }\n}\n\nfunction cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {\n  // #7817 clone node before setting fnContext, otherwise if the node is reused\n  // (e.g. it was from a cached normal slot) the fnContext causes named slots\n  // that should not be matched to match.\n  var clone = cloneVNode(vnode);\n  clone.fnContext = contextVm;\n  clone.fnOptions = options;\n  if (data.slot) {\n    (clone.data || (clone.data = {})).slot = data.slot;\n  }\n  return clone\n}\n\nfunction mergeProps (to, from) {\n  for (var key in from) {\n    to[camelize(key)] = from[key];\n  }\n}\n\n/*  */\n\n\n\n\n// Register the component hook to weex native render engine.\n// The hook will be triggered by native, not javascript.\n\n\n// Updates the state of the component to weex native render engine.\n\n/*  */\n\n// /~https://github.com/Hanks10100/weex-native-directive/tree/master/component\n\n// listening on native callback\n\n/*  */\n\n/*  */\n\n// inline hooks to be invoked on component VNodes during patch\nvar componentVNodeHooks = {\n  init: function init (\n    vnode,\n    hydrating,\n    parentElm,\n    refElm\n  ) {\n    if (\n      vnode.componentInstance &&\n      !vnode.componentInstance._isDestroyed &&\n      vnode.data.keepAlive\n    ) {\n      // kept-alive components, treat as a patch\n      var mountedNode = vnode; // work around flow\n      componentVNodeHooks.prepatch(mountedNode, mountedNode);\n    } else {\n      var child = vnode.componentInstance = createComponentInstanceForVnode(\n        vnode,\n        activeInstance,\n        parentElm,\n        refElm\n      );\n      child.$mount(hydrating ? vnode.elm : undefined, hydrating);\n    }\n  },\n\n  prepatch: function prepatch (oldVnode, vnode) {\n    var options = vnode.componentOptions;\n    var child = vnode.componentInstance = oldVnode.componentInstance;\n    updateChildComponent(\n      child,\n      options.propsData, // updated props\n      options.listeners, // updated listeners\n      vnode, // new parent vnode\n      options.children // new children\n    );\n  },\n\n  insert: function insert (vnode) {\n    var context = vnode.context;\n    var componentInstance = vnode.componentInstance;\n    if (!componentInstance._isMounted) {\n      componentInstance._isMounted = true;\n      callHook(componentInstance, 'mounted');\n    }\n    if (vnode.data.keepAlive) {\n      if (context._isMounted) {\n        // vue-router#1212\n        // During updates, a kept-alive component's child components may\n        // change, so directly walking the tree here may call activated hooks\n        // on incorrect children. Instead we push them into a queue which will\n        // be processed after the whole patch process ended.\n        queueActivatedComponent(componentInstance);\n      } else {\n        activateChildComponent(componentInstance, true /* direct */);\n      }\n    }\n  },\n\n  destroy: function destroy (vnode) {\n    var componentInstance = vnode.componentInstance;\n    if (!componentInstance._isDestroyed) {\n      if (!vnode.data.keepAlive) {\n        componentInstance.$destroy();\n      } else {\n        deactivateChildComponent(componentInstance, true /* direct */);\n      }\n    }\n  }\n};\n\nvar hooksToMerge = Object.keys(componentVNodeHooks);\n\nfunction createComponent (\n  Ctor,\n  data,\n  context,\n  children,\n  tag\n) {\n  if (isUndef(Ctor)) {\n    return\n  }\n\n  var baseCtor = context.$options._base;\n\n  // plain options object: turn it into a constructor\n  if (isObject(Ctor)) {\n    Ctor = baseCtor.extend(Ctor);\n  }\n\n  // if at this stage it's not a constructor or an async component factory,\n  // reject.\n  if (typeof Ctor !== 'function') {\n    if (process.env.NODE_ENV !== 'production') {\n      warn((\"Invalid Component definition: \" + (String(Ctor))), context);\n    }\n    return\n  }\n\n  // async component\n  var asyncFactory;\n  if (isUndef(Ctor.cid)) {\n    asyncFactory = Ctor;\n    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);\n    if (Ctor === undefined) {\n      // return a placeholder node for async component, which is rendered\n      // as a comment node but preserves all the raw information for the node.\n      // the information will be used for async server-rendering and hydration.\n      return createAsyncPlaceholder(\n        asyncFactory,\n        data,\n        context,\n        children,\n        tag\n      )\n    }\n  }\n\n  data = data || {};\n\n  // resolve constructor options in case global mixins are applied after\n  // component constructor creation\n  resolveConstructorOptions(Ctor);\n\n  // transform component v-model data into props & events\n  if (isDef(data.model)) {\n    transformModel(Ctor.options, data);\n  }\n\n  // extract props\n  var propsData = extractPropsFromVNodeData(data, Ctor, tag);\n\n  // functional component\n  if (isTrue(Ctor.options.functional)) {\n    return createFunctionalComponent(Ctor, propsData, data, context, children)\n  }\n\n  // extract listeners, since these needs to be treated as\n  // child component listeners instead of DOM listeners\n  var listeners = data.on;\n  // replace with listeners with .native modifier\n  // so it gets processed during parent component patch.\n  data.on = data.nativeOn;\n\n  if (isTrue(Ctor.options.abstract)) {\n    // abstract components do not keep anything\n    // other than props & listeners & slot\n\n    // work around flow\n    var slot = data.slot;\n    data = {};\n    if (slot) {\n      data.slot = slot;\n    }\n  }\n\n  // install component management hooks onto the placeholder node\n  installComponentHooks(data);\n\n  // return a placeholder vnode\n  var name = Ctor.options.name || tag;\n  var vnode = new VNode(\n    (\"vue-component-\" + (Ctor.cid) + (name ? (\"-\" + name) : '')),\n    data, undefined, undefined, undefined, context,\n    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },\n    asyncFactory\n  );\n\n  // Weex specific: invoke recycle-list optimized @render function for\n  // extracting cell-slot template.\n  // /~https://github.com/Hanks10100/weex-native-directive/tree/master/component\n  /* istanbul ignore if */\n  return vnode\n}\n\nfunction createComponentInstanceForVnode (\n  vnode, // we know it's MountedComponentVNode but flow doesn't\n  parent, // activeInstance in lifecycle state\n  parentElm,\n  refElm\n) {\n  var options = {\n    _isComponent: true,\n    parent: parent,\n    _parentVnode: vnode,\n    _parentElm: parentElm || null,\n    _refElm: refElm || null\n  };\n  // check inline-template render functions\n  var inlineTemplate = vnode.data.inlineTemplate;\n  if (isDef(inlineTemplate)) {\n    options.render = inlineTemplate.render;\n    options.staticRenderFns = inlineTemplate.staticRenderFns;\n  }\n  return new vnode.componentOptions.Ctor(options)\n}\n\nfunction installComponentHooks (data) {\n  var hooks = data.hook || (data.hook = {});\n  for (var i = 0; i < hooksToMerge.length; i++) {\n    var key = hooksToMerge[i];\n    hooks[key] = componentVNodeHooks[key];\n  }\n}\n\n// transform component v-model info (value and callback) into\n// prop and event handler respectively.\nfunction transformModel (options, data) {\n  var prop = (options.model && options.model.prop) || 'value';\n  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;\n  var on = data.on || (data.on = {});\n  if (isDef(on[event])) {\n    on[event] = [data.model.callback].concat(on[event]);\n  } else {\n    on[event] = data.model.callback;\n  }\n}\n\n/*  */\n\nvar SIMPLE_NORMALIZE = 1;\nvar ALWAYS_NORMALIZE = 2;\n\n// wrapper function for providing a more flexible interface\n// without getting yelled at by flow\nfunction createElement (\n  context,\n  tag,\n  data,\n  children,\n  normalizationType,\n  alwaysNormalize\n) {\n  if (Array.isArray(data) || isPrimitive(data)) {\n    normalizationType = children;\n    children = data;\n    data = undefined;\n  }\n  if (isTrue(alwaysNormalize)) {\n    normalizationType = ALWAYS_NORMALIZE;\n  }\n  return _createElement(context, tag, data, children, normalizationType)\n}\n\nfunction _createElement (\n  context,\n  tag,\n  data,\n  children,\n  normalizationType\n) {\n  if (isDef(data) && isDef((data).__ob__)) {\n    process.env.NODE_ENV !== 'production' && warn(\n      \"Avoid using observed data object as vnode data: \" + (JSON.stringify(data)) + \"\\n\" +\n      'Always create fresh vnode data objects in each render!',\n      context\n    );\n    return createEmptyVNode()\n  }\n  // object syntax in v-bind\n  if (isDef(data) && isDef(data.is)) {\n    tag = data.is;\n  }\n  if (!tag) {\n    // in case of component :is set to falsy value\n    return createEmptyVNode()\n  }\n  // warn against non-primitive key\n  if (process.env.NODE_ENV !== 'production' &&\n    isDef(data) && isDef(data.key) && !isPrimitive(data.key)\n  ) {\n    {\n      warn(\n        'Avoid using non-primitive value as key, ' +\n        'use string/number value instead.',\n        context\n      );\n    }\n  }\n  // support single function children as default scoped slot\n  if (Array.isArray(children) &&\n    typeof children[0] === 'function'\n  ) {\n    data = data || {};\n    data.scopedSlots = { default: children[0] };\n    children.length = 0;\n  }\n  if (normalizationType === ALWAYS_NORMALIZE) {\n    children = normalizeChildren(children);\n  } else if (normalizationType === SIMPLE_NORMALIZE) {\n    children = simpleNormalizeChildren(children);\n  }\n  var vnode, ns;\n  if (typeof tag === 'string') {\n    var Ctor;\n    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);\n    if (config.isReservedTag(tag)) {\n      // platform built-in elements\n      vnode = new VNode(\n        config.parsePlatformTagName(tag), data, children,\n        undefined, undefined, context\n      );\n    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {\n      // component\n      vnode = createComponent(Ctor, data, context, children, tag);\n    } else {\n      // unknown or unlisted namespaced elements\n      // check at runtime because it may get assigned a namespace when its\n      // parent normalizes children\n      vnode = new VNode(\n        tag, data, children,\n        undefined, undefined, context\n      );\n    }\n  } else {\n    // direct component options / constructor\n    vnode = createComponent(tag, data, context, children);\n  }\n  if (Array.isArray(vnode)) {\n    return vnode\n  } else if (isDef(vnode)) {\n    if (isDef(ns)) { applyNS(vnode, ns); }\n    if (isDef(data)) { registerDeepBindings(data); }\n    return vnode\n  } else {\n    return createEmptyVNode()\n  }\n}\n\nfunction applyNS (vnode, ns, force) {\n  vnode.ns = ns;\n  if (vnode.tag === 'foreignObject') {\n    // use default namespace inside foreignObject\n    ns = undefined;\n    force = true;\n  }\n  if (isDef(vnode.children)) {\n    for (var i = 0, l = vnode.children.length; i < l; i++) {\n      var child = vnode.children[i];\n      if (isDef(child.tag) && (\n        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {\n        applyNS(child, ns, force);\n      }\n    }\n  }\n}\n\n// ref #5318\n// necessary to ensure parent re-render when deep bindings like :style and\n// :class are used on slot nodes\nfunction registerDeepBindings (data) {\n  if (isObject(data.style)) {\n    traverse(data.style);\n  }\n  if (isObject(data.class)) {\n    traverse(data.class);\n  }\n}\n\n/*  */\n\nfunction initRender (vm) {\n  vm._vnode = null; // the root of the child tree\n  vm._staticTrees = null; // v-once cached trees\n  var options = vm.$options;\n  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree\n  var renderContext = parentVnode && parentVnode.context;\n  vm.$slots = resolveSlots(options._renderChildren, renderContext);\n  vm.$scopedSlots = emptyObject;\n  // bind the createElement fn to this instance\n  // so that we get proper render context inside it.\n  // args order: tag, data, children, normalizationType, alwaysNormalize\n  // internal version is used by render functions compiled from templates\n  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };\n  // normalization is always applied for the public version, used in\n  // user-written render functions.\n  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };\n\n  // $attrs & $listeners are exposed for easier HOC creation.\n  // they need to be reactive so that HOCs using them are always updated\n  var parentData = parentVnode && parentVnode.data;\n\n  /* istanbul ignore else */\n  if (process.env.NODE_ENV !== 'production') {\n    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {\n      !isUpdatingChildComponent && warn(\"$attrs is readonly.\", vm);\n    }, true);\n    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {\n      !isUpdatingChildComponent && warn(\"$listeners is readonly.\", vm);\n    }, true);\n  } else {\n    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);\n    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);\n  }\n}\n\nfunction renderMixin (Vue) {\n  // install runtime convenience helpers\n  installRenderHelpers(Vue.prototype);\n\n  Vue.prototype.$nextTick = function (fn) {\n    return nextTick(fn, this)\n  };\n\n  Vue.prototype._render = function () {\n    var vm = this;\n    var ref = vm.$options;\n    var render = ref.render;\n    var _parentVnode = ref._parentVnode;\n\n    // reset _rendered flag on slots for duplicate slot check\n    if (process.env.NODE_ENV !== 'production') {\n      for (var key in vm.$slots) {\n        // $flow-disable-line\n        vm.$slots[key]._rendered = false;\n      }\n    }\n\n    if (_parentVnode) {\n      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;\n    }\n\n    // set parent vnode. this allows render functions to have access\n    // to the data on the placeholder node.\n    vm.$vnode = _parentVnode;\n    // render self\n    var vnode;\n    try {\n      vnode = render.call(vm._renderProxy, vm.$createElement);\n    } catch (e) {\n      handleError(e, vm, \"render\");\n      // return error render result,\n      // or previous vnode to prevent render error causing blank component\n      /* istanbul ignore else */\n      if (process.env.NODE_ENV !== 'production') {\n        if (vm.$options.renderError) {\n          try {\n            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);\n          } catch (e) {\n            handleError(e, vm, \"renderError\");\n            vnode = vm._vnode;\n          }\n        } else {\n          vnode = vm._vnode;\n        }\n      } else {\n        vnode = vm._vnode;\n      }\n    }\n    // return empty vnode in case the render function errored out\n    if (!(vnode instanceof VNode)) {\n      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {\n        warn(\n          'Multiple root nodes returned from render function. Render function ' +\n          'should return a single root node.',\n          vm\n        );\n      }\n      vnode = createEmptyVNode();\n    }\n    // set parent\n    vnode.parent = _parentVnode;\n    return vnode\n  };\n}\n\n/*  */\n\nvar uid$3 = 0;\n\nfunction initMixin (Vue) {\n  Vue.prototype._init = function (options) {\n    var vm = this;\n    // a uid\n    vm._uid = uid$3++;\n\n    var startTag, endTag;\n    /* istanbul ignore if */\n    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n      startTag = \"vue-perf-start:\" + (vm._uid);\n      endTag = \"vue-perf-end:\" + (vm._uid);\n      mark(startTag);\n    }\n\n    // a flag to avoid this being observed\n    vm._isVue = true;\n    // merge options\n    if (options && options._isComponent) {\n      // optimize internal component instantiation\n      // since dynamic options merging is pretty slow, and none of the\n      // internal component options needs special treatment.\n      initInternalComponent(vm, options);\n    } else {\n      vm.$options = mergeOptions(\n        resolveConstructorOptions(vm.constructor),\n        options || {},\n        vm\n      );\n    }\n    /* istanbul ignore else */\n    if (process.env.NODE_ENV !== 'production') {\n      initProxy(vm);\n    } else {\n      vm._renderProxy = vm;\n    }\n    // expose real self\n    vm._self = vm;\n    initLifecycle(vm);\n    initEvents(vm);\n    initRender(vm);\n    callHook(vm, 'beforeCreate');\n    initInjections(vm); // resolve injections before data/props\n    initState(vm);\n    initProvide(vm); // resolve provide after data/props\n    callHook(vm, 'created');\n\n    /* istanbul ignore if */\n    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n      vm._name = formatComponentName(vm, false);\n      mark(endTag);\n      measure((\"vue \" + (vm._name) + \" init\"), startTag, endTag);\n    }\n\n    if (vm.$options.el) {\n      vm.$mount(vm.$options.el);\n    }\n  };\n}\n\nfunction initInternalComponent (vm, options) {\n  var opts = vm.$options = Object.create(vm.constructor.options);\n  // doing this because it's faster than dynamic enumeration.\n  var parentVnode = options._parentVnode;\n  opts.parent = options.parent;\n  opts._parentVnode = parentVnode;\n  opts._parentElm = options._parentElm;\n  opts._refElm = options._refElm;\n\n  var vnodeComponentOptions = parentVnode.componentOptions;\n  opts.propsData = vnodeComponentOptions.propsData;\n  opts._parentListeners = vnodeComponentOptions.listeners;\n  opts._renderChildren = vnodeComponentOptions.children;\n  opts._componentTag = vnodeComponentOptions.tag;\n\n  if (options.render) {\n    opts.render = options.render;\n    opts.staticRenderFns = options.staticRenderFns;\n  }\n}\n\nfunction resolveConstructorOptions (Ctor) {\n  var options = Ctor.options;\n  if (Ctor.super) {\n    var superOptions = resolveConstructorOptions(Ctor.super);\n    var cachedSuperOptions = Ctor.superOptions;\n    if (superOptions !== cachedSuperOptions) {\n      // super option changed,\n      // need to resolve new options.\n      Ctor.superOptions = superOptions;\n      // check if there are any late-modified/attached options (#4976)\n      var modifiedOptions = resolveModifiedOptions(Ctor);\n      // update base extend options\n      if (modifiedOptions) {\n        extend(Ctor.extendOptions, modifiedOptions);\n      }\n      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);\n      if (options.name) {\n        options.components[options.name] = Ctor;\n      }\n    }\n  }\n  return options\n}\n\nfunction resolveModifiedOptions (Ctor) {\n  var modified;\n  var latest = Ctor.options;\n  var extended = Ctor.extendOptions;\n  var sealed = Ctor.sealedOptions;\n  for (var key in latest) {\n    if (latest[key] !== sealed[key]) {\n      if (!modified) { modified = {}; }\n      modified[key] = dedupe(latest[key], extended[key], sealed[key]);\n    }\n  }\n  return modified\n}\n\nfunction dedupe (latest, extended, sealed) {\n  // compare latest and sealed to ensure lifecycle hooks won't be duplicated\n  // between merges\n  if (Array.isArray(latest)) {\n    var res = [];\n    sealed = Array.isArray(sealed) ? sealed : [sealed];\n    extended = Array.isArray(extended) ? extended : [extended];\n    for (var i = 0; i < latest.length; i++) {\n      // push original options and not sealed options to exclude duplicated options\n      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {\n        res.push(latest[i]);\n      }\n    }\n    return res\n  } else {\n    return latest\n  }\n}\n\nfunction Vue (options) {\n  if (process.env.NODE_ENV !== 'production' &&\n    !(this instanceof Vue)\n  ) {\n    warn('Vue is a constructor and should be called with the `new` keyword');\n  }\n  this._init(options);\n}\n\ninitMixin(Vue);\nstateMixin(Vue);\neventsMixin(Vue);\nlifecycleMixin(Vue);\nrenderMixin(Vue);\n\n/*  */\n\nfunction initUse (Vue) {\n  Vue.use = function (plugin) {\n    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));\n    if (installedPlugins.indexOf(plugin) > -1) {\n      return this\n    }\n\n    // additional parameters\n    var args = toArray(arguments, 1);\n    args.unshift(this);\n    if (typeof plugin.install === 'function') {\n      plugin.install.apply(plugin, args);\n    } else if (typeof plugin === 'function') {\n      plugin.apply(null, args);\n    }\n    installedPlugins.push(plugin);\n    return this\n  };\n}\n\n/*  */\n\nfunction initMixin$1 (Vue) {\n  Vue.mixin = function (mixin) {\n    this.options = mergeOptions(this.options, mixin);\n    return this\n  };\n}\n\n/*  */\n\nfunction initExtend (Vue) {\n  /**\n   * Each instance constructor, including Vue, has a unique\n   * cid. This enables us to create wrapped \"child\n   * constructors\" for prototypal inheritance and cache them.\n   */\n  Vue.cid = 0;\n  var cid = 1;\n\n  /**\n   * Class inheritance\n   */\n  Vue.extend = function (extendOptions) {\n    extendOptions = extendOptions || {};\n    var Super = this;\n    var SuperId = Super.cid;\n    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});\n    if (cachedCtors[SuperId]) {\n      return cachedCtors[SuperId]\n    }\n\n    var name = extendOptions.name || Super.options.name;\n    if (process.env.NODE_ENV !== 'production' && name) {\n      validateComponentName(name);\n    }\n\n    var Sub = function VueComponent (options) {\n      this._init(options);\n    };\n    Sub.prototype = Object.create(Super.prototype);\n    Sub.prototype.constructor = Sub;\n    Sub.cid = cid++;\n    Sub.options = mergeOptions(\n      Super.options,\n      extendOptions\n    );\n    Sub['super'] = Super;\n\n    // For props and computed properties, we define the proxy getters on\n    // the Vue instances at extension time, on the extended prototype. This\n    // avoids Object.defineProperty calls for each instance created.\n    if (Sub.options.props) {\n      initProps$1(Sub);\n    }\n    if (Sub.options.computed) {\n      initComputed$1(Sub);\n    }\n\n    // allow further extension/mixin/plugin usage\n    Sub.extend = Super.extend;\n    Sub.mixin = Super.mixin;\n    Sub.use = Super.use;\n\n    // create asset registers, so extended classes\n    // can have their private assets too.\n    ASSET_TYPES.forEach(function (type) {\n      Sub[type] = Super[type];\n    });\n    // enable recursive self-lookup\n    if (name) {\n      Sub.options.components[name] = Sub;\n    }\n\n    // keep a reference to the super options at extension time.\n    // later at instantiation we can check if Super's options have\n    // been updated.\n    Sub.superOptions = Super.options;\n    Sub.extendOptions = extendOptions;\n    Sub.sealedOptions = extend({}, Sub.options);\n\n    // cache constructor\n    cachedCtors[SuperId] = Sub;\n    return Sub\n  };\n}\n\nfunction initProps$1 (Comp) {\n  var props = Comp.options.props;\n  for (var key in props) {\n    proxy(Comp.prototype, \"_props\", key);\n  }\n}\n\nfunction initComputed$1 (Comp) {\n  var computed = Comp.options.computed;\n  for (var key in computed) {\n    defineComputed(Comp.prototype, key, computed[key]);\n  }\n}\n\n/*  */\n\nfunction initAssetRegisters (Vue) {\n  /**\n   * Create asset registration methods.\n   */\n  ASSET_TYPES.forEach(function (type) {\n    Vue[type] = function (\n      id,\n      definition\n    ) {\n      if (!definition) {\n        return this.options[type + 's'][id]\n      } else {\n        /* istanbul ignore if */\n        if (process.env.NODE_ENV !== 'production' && type === 'component') {\n          validateComponentName(id);\n        }\n        if (type === 'component' && isPlainObject(definition)) {\n          definition.name = definition.name || id;\n          definition = this.options._base.extend(definition);\n        }\n        if (type === 'directive' && typeof definition === 'function') {\n          definition = { bind: definition, update: definition };\n        }\n        this.options[type + 's'][id] = definition;\n        return definition\n      }\n    };\n  });\n}\n\n/*  */\n\nfunction getComponentName (opts) {\n  return opts && (opts.Ctor.options.name || opts.tag)\n}\n\nfunction matches (pattern, name) {\n  if (Array.isArray(pattern)) {\n    return pattern.indexOf(name) > -1\n  } else if (typeof pattern === 'string') {\n    return pattern.split(',').indexOf(name) > -1\n  } else if (isRegExp(pattern)) {\n    return pattern.test(name)\n  }\n  /* istanbul ignore next */\n  return false\n}\n\nfunction pruneCache (keepAliveInstance, filter) {\n  var cache = keepAliveInstance.cache;\n  var keys = keepAliveInstance.keys;\n  var _vnode = keepAliveInstance._vnode;\n  for (var key in cache) {\n    var cachedNode = cache[key];\n    if (cachedNode) {\n      var name = getComponentName(cachedNode.componentOptions);\n      if (name && !filter(name)) {\n        pruneCacheEntry(cache, key, keys, _vnode);\n      }\n    }\n  }\n}\n\nfunction pruneCacheEntry (\n  cache,\n  key,\n  keys,\n  current\n) {\n  var cached$$1 = cache[key];\n  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {\n    cached$$1.componentInstance.$destroy();\n  }\n  cache[key] = null;\n  remove(keys, key);\n}\n\nvar patternTypes = [String, RegExp, Array];\n\nvar KeepAlive = {\n  name: 'keep-alive',\n  abstract: true,\n\n  props: {\n    include: patternTypes,\n    exclude: patternTypes,\n    max: [String, Number]\n  },\n\n  created: function created () {\n    this.cache = Object.create(null);\n    this.keys = [];\n  },\n\n  destroyed: function destroyed () {\n    var this$1 = this;\n\n    for (var key in this$1.cache) {\n      pruneCacheEntry(this$1.cache, key, this$1.keys);\n    }\n  },\n\n  mounted: function mounted () {\n    var this$1 = this;\n\n    this.$watch('include', function (val) {\n      pruneCache(this$1, function (name) { return matches(val, name); });\n    });\n    this.$watch('exclude', function (val) {\n      pruneCache(this$1, function (name) { return !matches(val, name); });\n    });\n  },\n\n  render: function render () {\n    var slot = this.$slots.default;\n    var vnode = getFirstComponentChild(slot);\n    var componentOptions = vnode && vnode.componentOptions;\n    if (componentOptions) {\n      // check pattern\n      var name = getComponentName(componentOptions);\n      var ref = this;\n      var include = ref.include;\n      var exclude = ref.exclude;\n      if (\n        // not included\n        (include && (!name || !matches(include, name))) ||\n        // excluded\n        (exclude && name && matches(exclude, name))\n      ) {\n        return vnode\n      }\n\n      var ref$1 = this;\n      var cache = ref$1.cache;\n      var keys = ref$1.keys;\n      var key = vnode.key == null\n        // same constructor may get registered as different local components\n        // so cid alone is not enough (#3269)\n        ? componentOptions.Ctor.cid + (componentOptions.tag ? (\"::\" + (componentOptions.tag)) : '')\n        : vnode.key;\n      if (cache[key]) {\n        vnode.componentInstance = cache[key].componentInstance;\n        // make current key freshest\n        remove(keys, key);\n        keys.push(key);\n      } else {\n        cache[key] = vnode;\n        keys.push(key);\n        // prune oldest entry\n        if (this.max && keys.length > parseInt(this.max)) {\n          pruneCacheEntry(cache, keys[0], keys, this._vnode);\n        }\n      }\n\n      vnode.data.keepAlive = true;\n    }\n    return vnode || (slot && slot[0])\n  }\n}\n\nvar builtInComponents = {\n  KeepAlive: KeepAlive\n}\n\n/*  */\n\nfunction initGlobalAPI (Vue) {\n  // config\n  var configDef = {};\n  configDef.get = function () { return config; };\n  if (process.env.NODE_ENV !== 'production') {\n    configDef.set = function () {\n      warn(\n        'Do not replace the Vue.config object, set individual fields instead.'\n      );\n    };\n  }\n  Object.defineProperty(Vue, 'config', configDef);\n\n  // exposed util methods.\n  // NOTE: these are not considered part of the public API - avoid relying on\n  // them unless you are aware of the risk.\n  Vue.util = {\n    warn: warn,\n    extend: extend,\n    mergeOptions: mergeOptions,\n    defineReactive: defineReactive\n  };\n\n  Vue.set = set;\n  Vue.delete = del;\n  Vue.nextTick = nextTick;\n\n  Vue.options = Object.create(null);\n  ASSET_TYPES.forEach(function (type) {\n    Vue.options[type + 's'] = Object.create(null);\n  });\n\n  // this is used to identify the \"base\" constructor to extend all plain-object\n  // components with in Weex's multi-instance scenarios.\n  Vue.options._base = Vue;\n\n  extend(Vue.options.components, builtInComponents);\n\n  initUse(Vue);\n  initMixin$1(Vue);\n  initExtend(Vue);\n  initAssetRegisters(Vue);\n}\n\ninitGlobalAPI(Vue);\n\nObject.defineProperty(Vue.prototype, '$isServer', {\n  get: isServerRendering\n});\n\nObject.defineProperty(Vue.prototype, '$ssrContext', {\n  get: function get () {\n    /* istanbul ignore next */\n    return this.$vnode && this.$vnode.ssrContext\n  }\n});\n\n// expose FunctionalRenderContext for ssr runtime helper installation\nObject.defineProperty(Vue, 'FunctionalRenderContext', {\n  value: FunctionalRenderContext\n});\n\nVue.version = '2.5.17';\n\n/*  */\n\n// these are reserved for web because they are directly compiled away\n// during template compilation\nvar isReservedAttr = makeMap('style,class');\n\n// attributes that should be using props for binding\nvar acceptValue = makeMap('input,textarea,option,select,progress');\nvar mustUseProp = function (tag, type, attr) {\n  return (\n    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||\n    (attr === 'selected' && tag === 'option') ||\n    (attr === 'checked' && tag === 'input') ||\n    (attr === 'muted' && tag === 'video')\n  )\n};\n\nvar isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');\n\nvar isBooleanAttr = makeMap(\n  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +\n  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +\n  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +\n  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +\n  'required,reversed,scoped,seamless,selected,sortable,translate,' +\n  'truespeed,typemustmatch,visible'\n);\n\nvar xlinkNS = 'http://www.w3.org/1999/xlink';\n\nvar isXlink = function (name) {\n  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'\n};\n\nvar getXlinkProp = function (name) {\n  return isXlink(name) ? name.slice(6, name.length) : ''\n};\n\nvar isFalsyAttrValue = function (val) {\n  return val == null || val === false\n};\n\n/*  */\n\nfunction genClassForVnode (vnode) {\n  var data = vnode.data;\n  var parentNode = vnode;\n  var childNode = vnode;\n  while (isDef(childNode.componentInstance)) {\n    childNode = childNode.componentInstance._vnode;\n    if (childNode && childNode.data) {\n      data = mergeClassData(childNode.data, data);\n    }\n  }\n  while (isDef(parentNode = parentNode.parent)) {\n    if (parentNode && parentNode.data) {\n      data = mergeClassData(data, parentNode.data);\n    }\n  }\n  return renderClass(data.staticClass, data.class)\n}\n\nfunction mergeClassData (child, parent) {\n  return {\n    staticClass: concat(child.staticClass, parent.staticClass),\n    class: isDef(child.class)\n      ? [child.class, parent.class]\n      : parent.class\n  }\n}\n\nfunction renderClass (\n  staticClass,\n  dynamicClass\n) {\n  if (isDef(staticClass) || isDef(dynamicClass)) {\n    return concat(staticClass, stringifyClass(dynamicClass))\n  }\n  /* istanbul ignore next */\n  return ''\n}\n\nfunction concat (a, b) {\n  return a ? b ? (a + ' ' + b) : a : (b || '')\n}\n\nfunction stringifyClass (value) {\n  if (Array.isArray(value)) {\n    return stringifyArray(value)\n  }\n  if (isObject(value)) {\n    return stringifyObject(value)\n  }\n  if (typeof value === 'string') {\n    return value\n  }\n  /* istanbul ignore next */\n  return ''\n}\n\nfunction stringifyArray (value) {\n  var res = '';\n  var stringified;\n  for (var i = 0, l = value.length; i < l; i++) {\n    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {\n      if (res) { res += ' '; }\n      res += stringified;\n    }\n  }\n  return res\n}\n\nfunction stringifyObject (value) {\n  var res = '';\n  for (var key in value) {\n    if (value[key]) {\n      if (res) { res += ' '; }\n      res += key;\n    }\n  }\n  return res\n}\n\n/*  */\n\nvar namespaceMap = {\n  svg: 'http://www.w3.org/2000/svg',\n  math: 'http://www.w3.org/1998/Math/MathML'\n};\n\nvar isHTMLTag = makeMap(\n  'html,body,base,head,link,meta,style,title,' +\n  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +\n  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +\n  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +\n  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +\n  'embed,object,param,source,canvas,script,noscript,del,ins,' +\n  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +\n  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +\n  'output,progress,select,textarea,' +\n  'details,dialog,menu,menuitem,summary,' +\n  'content,element,shadow,template,blockquote,iframe,tfoot'\n);\n\n// this map is intentionally selective, only covering SVG elements that may\n// contain child elements.\nvar isSVG = makeMap(\n  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +\n  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +\n  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',\n  true\n);\n\n\n\nvar isReservedTag = function (tag) {\n  return isHTMLTag(tag) || isSVG(tag)\n};\n\nfunction getTagNamespace (tag) {\n  if (isSVG(tag)) {\n    return 'svg'\n  }\n  // basic support for MathML\n  // note it doesn't support other MathML elements being component roots\n  if (tag === 'math') {\n    return 'math'\n  }\n}\n\nvar unknownElementCache = Object.create(null);\nfunction isUnknownElement (tag) {\n  /* istanbul ignore if */\n  if (!inBrowser) {\n    return true\n  }\n  if (isReservedTag(tag)) {\n    return false\n  }\n  tag = tag.toLowerCase();\n  /* istanbul ignore if */\n  if (unknownElementCache[tag] != null) {\n    return unknownElementCache[tag]\n  }\n  var el = document.createElement(tag);\n  if (tag.indexOf('-') > -1) {\n    // http://stackoverflow.com/a/28210364/1070244\n    return (unknownElementCache[tag] = (\n      el.constructor === window.HTMLUnknownElement ||\n      el.constructor === window.HTMLElement\n    ))\n  } else {\n    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))\n  }\n}\n\nvar isTextInputType = makeMap('text,number,password,search,email,tel,url');\n\n/*  */\n\n/**\n * Query an element selector if it's not an element already.\n */\nfunction query (el) {\n  if (typeof el === 'string') {\n    var selected = document.querySelector(el);\n    if (!selected) {\n      process.env.NODE_ENV !== 'production' && warn(\n        'Cannot find element: ' + el\n      );\n      return document.createElement('div')\n    }\n    return selected\n  } else {\n    return el\n  }\n}\n\n/*  */\n\nfunction createElement$1 (tagName, vnode) {\n  var elm = document.createElement(tagName);\n  if (tagName !== 'select') {\n    return elm\n  }\n  // false or null will remove the attribute but undefined will not\n  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {\n    elm.setAttribute('multiple', 'multiple');\n  }\n  return elm\n}\n\nfunction createElementNS (namespace, tagName) {\n  return document.createElementNS(namespaceMap[namespace], tagName)\n}\n\nfunction createTextNode (text) {\n  return document.createTextNode(text)\n}\n\nfunction createComment (text) {\n  return document.createComment(text)\n}\n\nfunction insertBefore (parentNode, newNode, referenceNode) {\n  parentNode.insertBefore(newNode, referenceNode);\n}\n\nfunction removeChild (node, child) {\n  node.removeChild(child);\n}\n\nfunction appendChild (node, child) {\n  node.appendChild(child);\n}\n\nfunction parentNode (node) {\n  return node.parentNode\n}\n\nfunction nextSibling (node) {\n  return node.nextSibling\n}\n\nfunction tagName (node) {\n  return node.tagName\n}\n\nfunction setTextContent (node, text) {\n  node.textContent = text;\n}\n\nfunction setStyleScope (node, scopeId) {\n  node.setAttribute(scopeId, '');\n}\n\n\nvar nodeOps = Object.freeze({\n\tcreateElement: createElement$1,\n\tcreateElementNS: createElementNS,\n\tcreateTextNode: createTextNode,\n\tcreateComment: createComment,\n\tinsertBefore: insertBefore,\n\tremoveChild: removeChild,\n\tappendChild: appendChild,\n\tparentNode: parentNode,\n\tnextSibling: nextSibling,\n\ttagName: tagName,\n\tsetTextContent: setTextContent,\n\tsetStyleScope: setStyleScope\n});\n\n/*  */\n\nvar ref = {\n  create: function create (_, vnode) {\n    registerRef(vnode);\n  },\n  update: function update (oldVnode, vnode) {\n    if (oldVnode.data.ref !== vnode.data.ref) {\n      registerRef(oldVnode, true);\n      registerRef(vnode);\n    }\n  },\n  destroy: function destroy (vnode) {\n    registerRef(vnode, true);\n  }\n}\n\nfunction registerRef (vnode, isRemoval) {\n  var key = vnode.data.ref;\n  if (!isDef(key)) { return }\n\n  var vm = vnode.context;\n  var ref = vnode.componentInstance || vnode.elm;\n  var refs = vm.$refs;\n  if (isRemoval) {\n    if (Array.isArray(refs[key])) {\n      remove(refs[key], ref);\n    } else if (refs[key] === ref) {\n      refs[key] = undefined;\n    }\n  } else {\n    if (vnode.data.refInFor) {\n      if (!Array.isArray(refs[key])) {\n        refs[key] = [ref];\n      } else if (refs[key].indexOf(ref) < 0) {\n        // $flow-disable-line\n        refs[key].push(ref);\n      }\n    } else {\n      refs[key] = ref;\n    }\n  }\n}\n\n/**\n * Virtual DOM patching algorithm based on Snabbdom by\n * Simon Friis Vindum (@paldepind)\n * Licensed under the MIT License\n * /~https://github.com/paldepind/snabbdom/blob/master/LICENSE\n *\n * modified by Evan You (@yyx990803)\n *\n * Not type-checking this because this file is perf-critical and the cost\n * of making flow understand it is not worth it.\n */\n\nvar emptyNode = new VNode('', {}, []);\n\nvar hooks = ['create', 'activate', 'update', 'remove', 'destroy'];\n\nfunction sameVnode (a, b) {\n  return (\n    a.key === b.key && (\n      (\n        a.tag === b.tag &&\n        a.isComment === b.isComment &&\n        isDef(a.data) === isDef(b.data) &&\n        sameInputType(a, b)\n      ) || (\n        isTrue(a.isAsyncPlaceholder) &&\n        a.asyncFactory === b.asyncFactory &&\n        isUndef(b.asyncFactory.error)\n      )\n    )\n  )\n}\n\nfunction sameInputType (a, b) {\n  if (a.tag !== 'input') { return true }\n  var i;\n  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;\n  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;\n  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)\n}\n\nfunction createKeyToOldIdx (children, beginIdx, endIdx) {\n  var i, key;\n  var map = {};\n  for (i = beginIdx; i <= endIdx; ++i) {\n    key = children[i].key;\n    if (isDef(key)) { map[key] = i; }\n  }\n  return map\n}\n\nfunction createPatchFunction (backend) {\n  var i, j;\n  var cbs = {};\n\n  var modules = backend.modules;\n  var nodeOps = backend.nodeOps;\n\n  for (i = 0; i < hooks.length; ++i) {\n    cbs[hooks[i]] = [];\n    for (j = 0; j < modules.length; ++j) {\n      if (isDef(modules[j][hooks[i]])) {\n        cbs[hooks[i]].push(modules[j][hooks[i]]);\n      }\n    }\n  }\n\n  function emptyNodeAt (elm) {\n    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)\n  }\n\n  function createRmCb (childElm, listeners) {\n    function remove () {\n      if (--remove.listeners === 0) {\n        removeNode(childElm);\n      }\n    }\n    remove.listeners = listeners;\n    return remove\n  }\n\n  function removeNode (el) {\n    var parent = nodeOps.parentNode(el);\n    // element may have already been removed due to v-html / v-text\n    if (isDef(parent)) {\n      nodeOps.removeChild(parent, el);\n    }\n  }\n\n  function isUnknownElement$$1 (vnode, inVPre) {\n    return (\n      !inVPre &&\n      !vnode.ns &&\n      !(\n        config.ignoredElements.length &&\n        config.ignoredElements.some(function (ignore) {\n          return isRegExp(ignore)\n            ? ignore.test(vnode.tag)\n            : ignore === vnode.tag\n        })\n      ) &&\n      config.isUnknownElement(vnode.tag)\n    )\n  }\n\n  var creatingElmInVPre = 0;\n\n  function createElm (\n    vnode,\n    insertedVnodeQueue,\n    parentElm,\n    refElm,\n    nested,\n    ownerArray,\n    index\n  ) {\n    if (isDef(vnode.elm) && isDef(ownerArray)) {\n      // This vnode was used in a previous render!\n      // now it's used as a new node, overwriting its elm would cause\n      // potential patch errors down the road when it's used as an insertion\n      // reference node. Instead, we clone the node on-demand before creating\n      // associated DOM element for it.\n      vnode = ownerArray[index] = cloneVNode(vnode);\n    }\n\n    vnode.isRootInsert = !nested; // for transition enter check\n    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {\n      return\n    }\n\n    var data = vnode.data;\n    var children = vnode.children;\n    var tag = vnode.tag;\n    if (isDef(tag)) {\n      if (process.env.NODE_ENV !== 'production') {\n        if (data && data.pre) {\n          creatingElmInVPre++;\n        }\n        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {\n          warn(\n            'Unknown custom element: <' + tag + '> - did you ' +\n            'register the component correctly? For recursive components, ' +\n            'make sure to provide the \"name\" option.',\n            vnode.context\n          );\n        }\n      }\n\n      vnode.elm = vnode.ns\n        ? nodeOps.createElementNS(vnode.ns, tag)\n        : nodeOps.createElement(tag, vnode);\n      setScope(vnode);\n\n      /* istanbul ignore if */\n      {\n        createChildren(vnode, children, insertedVnodeQueue);\n        if (isDef(data)) {\n          invokeCreateHooks(vnode, insertedVnodeQueue);\n        }\n        insert(parentElm, vnode.elm, refElm);\n      }\n\n      if (process.env.NODE_ENV !== 'production' && data && data.pre) {\n        creatingElmInVPre--;\n      }\n    } else if (isTrue(vnode.isComment)) {\n      vnode.elm = nodeOps.createComment(vnode.text);\n      insert(parentElm, vnode.elm, refElm);\n    } else {\n      vnode.elm = nodeOps.createTextNode(vnode.text);\n      insert(parentElm, vnode.elm, refElm);\n    }\n  }\n\n  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {\n    var i = vnode.data;\n    if (isDef(i)) {\n      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;\n      if (isDef(i = i.hook) && isDef(i = i.init)) {\n        i(vnode, false /* hydrating */, parentElm, refElm);\n      }\n      // after calling the init hook, if the vnode is a child component\n      // it should've created a child instance and mounted it. the child\n      // component also has set the placeholder vnode's elm.\n      // in that case we can just return the element and be done.\n      if (isDef(vnode.componentInstance)) {\n        initComponent(vnode, insertedVnodeQueue);\n        if (isTrue(isReactivated)) {\n          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);\n        }\n        return true\n      }\n    }\n  }\n\n  function initComponent (vnode, insertedVnodeQueue) {\n    if (isDef(vnode.data.pendingInsert)) {\n      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);\n      vnode.data.pendingInsert = null;\n    }\n    vnode.elm = vnode.componentInstance.$el;\n    if (isPatchable(vnode)) {\n      invokeCreateHooks(vnode, insertedVnodeQueue);\n      setScope(vnode);\n    } else {\n      // empty component root.\n      // skip all element-related modules except for ref (#3455)\n      registerRef(vnode);\n      // make sure to invoke the insert hook\n      insertedVnodeQueue.push(vnode);\n    }\n  }\n\n  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {\n    var i;\n    // hack for #4339: a reactivated component with inner transition\n    // does not trigger because the inner node's created hooks are not called\n    // again. It's not ideal to involve module-specific logic in here but\n    // there doesn't seem to be a better way to do it.\n    var innerNode = vnode;\n    while (innerNode.componentInstance) {\n      innerNode = innerNode.componentInstance._vnode;\n      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {\n        for (i = 0; i < cbs.activate.length; ++i) {\n          cbs.activate[i](emptyNode, innerNode);\n        }\n        insertedVnodeQueue.push(innerNode);\n        break\n      }\n    }\n    // unlike a newly created component,\n    // a reactivated keep-alive component doesn't insert itself\n    insert(parentElm, vnode.elm, refElm);\n  }\n\n  function insert (parent, elm, ref$$1) {\n    if (isDef(parent)) {\n      if (isDef(ref$$1)) {\n        if (ref$$1.parentNode === parent) {\n          nodeOps.insertBefore(parent, elm, ref$$1);\n        }\n      } else {\n        nodeOps.appendChild(parent, elm);\n      }\n    }\n  }\n\n  function createChildren (vnode, children, insertedVnodeQueue) {\n    if (Array.isArray(children)) {\n      if (process.env.NODE_ENV !== 'production') {\n        checkDuplicateKeys(children);\n      }\n      for (var i = 0; i < children.length; ++i) {\n        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);\n      }\n    } else if (isPrimitive(vnode.text)) {\n      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));\n    }\n  }\n\n  function isPatchable (vnode) {\n    while (vnode.componentInstance) {\n      vnode = vnode.componentInstance._vnode;\n    }\n    return isDef(vnode.tag)\n  }\n\n  function invokeCreateHooks (vnode, insertedVnodeQueue) {\n    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {\n      cbs.create[i$1](emptyNode, vnode);\n    }\n    i = vnode.data.hook; // Reuse variable\n    if (isDef(i)) {\n      if (isDef(i.create)) { i.create(emptyNode, vnode); }\n      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }\n    }\n  }\n\n  // set scope id attribute for scoped CSS.\n  // this is implemented as a special case to avoid the overhead\n  // of going through the normal attribute patching process.\n  function setScope (vnode) {\n    var i;\n    if (isDef(i = vnode.fnScopeId)) {\n      nodeOps.setStyleScope(vnode.elm, i);\n    } else {\n      var ancestor = vnode;\n      while (ancestor) {\n        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {\n          nodeOps.setStyleScope(vnode.elm, i);\n        }\n        ancestor = ancestor.parent;\n      }\n    }\n    // for slot content they should also get the scopeId from the host instance.\n    if (isDef(i = activeInstance) &&\n      i !== vnode.context &&\n      i !== vnode.fnContext &&\n      isDef(i = i.$options._scopeId)\n    ) {\n      nodeOps.setStyleScope(vnode.elm, i);\n    }\n  }\n\n  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {\n    for (; startIdx <= endIdx; ++startIdx) {\n      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);\n    }\n  }\n\n  function invokeDestroyHook (vnode) {\n    var i, j;\n    var data = vnode.data;\n    if (isDef(data)) {\n      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }\n      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }\n    }\n    if (isDef(i = vnode.children)) {\n      for (j = 0; j < vnode.children.length; ++j) {\n        invokeDestroyHook(vnode.children[j]);\n      }\n    }\n  }\n\n  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {\n    for (; startIdx <= endIdx; ++startIdx) {\n      var ch = vnodes[startIdx];\n      if (isDef(ch)) {\n        if (isDef(ch.tag)) {\n          removeAndInvokeRemoveHook(ch);\n          invokeDestroyHook(ch);\n        } else { // Text node\n          removeNode(ch.elm);\n        }\n      }\n    }\n  }\n\n  function removeAndInvokeRemoveHook (vnode, rm) {\n    if (isDef(rm) || isDef(vnode.data)) {\n      var i;\n      var listeners = cbs.remove.length + 1;\n      if (isDef(rm)) {\n        // we have a recursively passed down rm callback\n        // increase the listeners count\n        rm.listeners += listeners;\n      } else {\n        // directly removing\n        rm = createRmCb(vnode.elm, listeners);\n      }\n      // recursively invoke hooks on child component root node\n      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {\n        removeAndInvokeRemoveHook(i, rm);\n      }\n      for (i = 0; i < cbs.remove.length; ++i) {\n        cbs.remove[i](vnode, rm);\n      }\n      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {\n        i(vnode, rm);\n      } else {\n        rm();\n      }\n    } else {\n      removeNode(vnode.elm);\n    }\n  }\n\n  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {\n    var oldStartIdx = 0;\n    var newStartIdx = 0;\n    var oldEndIdx = oldCh.length - 1;\n    var oldStartVnode = oldCh[0];\n    var oldEndVnode = oldCh[oldEndIdx];\n    var newEndIdx = newCh.length - 1;\n    var newStartVnode = newCh[0];\n    var newEndVnode = newCh[newEndIdx];\n    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;\n\n    // removeOnly is a special flag used only by <transition-group>\n    // to ensure removed elements stay in correct relative positions\n    // during leaving transitions\n    var canMove = !removeOnly;\n\n    if (process.env.NODE_ENV !== 'production') {\n      checkDuplicateKeys(newCh);\n    }\n\n    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {\n      if (isUndef(oldStartVnode)) {\n        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left\n      } else if (isUndef(oldEndVnode)) {\n        oldEndVnode = oldCh[--oldEndIdx];\n      } else if (sameVnode(oldStartVnode, newStartVnode)) {\n        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);\n        oldStartVnode = oldCh[++oldStartIdx];\n        newStartVnode = newCh[++newStartIdx];\n      } else if (sameVnode(oldEndVnode, newEndVnode)) {\n        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);\n        oldEndVnode = oldCh[--oldEndIdx];\n        newEndVnode = newCh[--newEndIdx];\n      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right\n        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);\n        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));\n        oldStartVnode = oldCh[++oldStartIdx];\n        newEndVnode = newCh[--newEndIdx];\n      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left\n        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);\n        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);\n        oldEndVnode = oldCh[--oldEndIdx];\n        newStartVnode = newCh[++newStartIdx];\n      } else {\n        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }\n        idxInOld = isDef(newStartVnode.key)\n          ? oldKeyToIdx[newStartVnode.key]\n          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);\n        if (isUndef(idxInOld)) { // New element\n          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);\n        } else {\n          vnodeToMove = oldCh[idxInOld];\n          if (sameVnode(vnodeToMove, newStartVnode)) {\n            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);\n            oldCh[idxInOld] = undefined;\n            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);\n          } else {\n            // same key but different element. treat as new element\n            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);\n          }\n        }\n        newStartVnode = newCh[++newStartIdx];\n      }\n    }\n    if (oldStartIdx > oldEndIdx) {\n      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;\n      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);\n    } else if (newStartIdx > newEndIdx) {\n      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);\n    }\n  }\n\n  function checkDuplicateKeys (children) {\n    var seenKeys = {};\n    for (var i = 0; i < children.length; i++) {\n      var vnode = children[i];\n      var key = vnode.key;\n      if (isDef(key)) {\n        if (seenKeys[key]) {\n          warn(\n            (\"Duplicate keys detected: '\" + key + \"'. This may cause an update error.\"),\n            vnode.context\n          );\n        } else {\n          seenKeys[key] = true;\n        }\n      }\n    }\n  }\n\n  function findIdxInOld (node, oldCh, start, end) {\n    for (var i = start; i < end; i++) {\n      var c = oldCh[i];\n      if (isDef(c) && sameVnode(node, c)) { return i }\n    }\n  }\n\n  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {\n    if (oldVnode === vnode) {\n      return\n    }\n\n    var elm = vnode.elm = oldVnode.elm;\n\n    if (isTrue(oldVnode.isAsyncPlaceholder)) {\n      if (isDef(vnode.asyncFactory.resolved)) {\n        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);\n      } else {\n        vnode.isAsyncPlaceholder = true;\n      }\n      return\n    }\n\n    // reuse element for static trees.\n    // note we only do this if the vnode is cloned -\n    // if the new node is not cloned it means the render functions have been\n    // reset by the hot-reload-api and we need to do a proper re-render.\n    if (isTrue(vnode.isStatic) &&\n      isTrue(oldVnode.isStatic) &&\n      vnode.key === oldVnode.key &&\n      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))\n    ) {\n      vnode.componentInstance = oldVnode.componentInstance;\n      return\n    }\n\n    var i;\n    var data = vnode.data;\n    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {\n      i(oldVnode, vnode);\n    }\n\n    var oldCh = oldVnode.children;\n    var ch = vnode.children;\n    if (isDef(data) && isPatchable(vnode)) {\n      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }\n      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }\n    }\n    if (isUndef(vnode.text)) {\n      if (isDef(oldCh) && isDef(ch)) {\n        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }\n      } else if (isDef(ch)) {\n        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }\n        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);\n      } else if (isDef(oldCh)) {\n        removeVnodes(elm, oldCh, 0, oldCh.length - 1);\n      } else if (isDef(oldVnode.text)) {\n        nodeOps.setTextContent(elm, '');\n      }\n    } else if (oldVnode.text !== vnode.text) {\n      nodeOps.setTextContent(elm, vnode.text);\n    }\n    if (isDef(data)) {\n      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }\n    }\n  }\n\n  function invokeInsertHook (vnode, queue, initial) {\n    // delay insert hooks for component root nodes, invoke them after the\n    // element is really inserted\n    if (isTrue(initial) && isDef(vnode.parent)) {\n      vnode.parent.data.pendingInsert = queue;\n    } else {\n      for (var i = 0; i < queue.length; ++i) {\n        queue[i].data.hook.insert(queue[i]);\n      }\n    }\n  }\n\n  var hydrationBailed = false;\n  // list of modules that can skip create hook during hydration because they\n  // are already rendered on the client or has no need for initialization\n  // Note: style is excluded because it relies on initial clone for future\n  // deep updates (#7063).\n  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');\n\n  // Note: this is a browser-only function so we can assume elms are DOM nodes.\n  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {\n    var i;\n    var tag = vnode.tag;\n    var data = vnode.data;\n    var children = vnode.children;\n    inVPre = inVPre || (data && data.pre);\n    vnode.elm = elm;\n\n    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {\n      vnode.isAsyncPlaceholder = true;\n      return true\n    }\n    // assert node match\n    if (process.env.NODE_ENV !== 'production') {\n      if (!assertNodeMatch(elm, vnode, inVPre)) {\n        return false\n      }\n    }\n    if (isDef(data)) {\n      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }\n      if (isDef(i = vnode.componentInstance)) {\n        // child component. it should have hydrated its own tree.\n        initComponent(vnode, insertedVnodeQueue);\n        return true\n      }\n    }\n    if (isDef(tag)) {\n      if (isDef(children)) {\n        // empty element, allow client to pick up and populate children\n        if (!elm.hasChildNodes()) {\n          createChildren(vnode, children, insertedVnodeQueue);\n        } else {\n          // v-html and domProps: innerHTML\n          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {\n            if (i !== elm.innerHTML) {\n              /* istanbul ignore if */\n              if (process.env.NODE_ENV !== 'production' &&\n                typeof console !== 'undefined' &&\n                !hydrationBailed\n              ) {\n                hydrationBailed = true;\n                console.warn('Parent: ', elm);\n                console.warn('server innerHTML: ', i);\n                console.warn('client innerHTML: ', elm.innerHTML);\n              }\n              return false\n            }\n          } else {\n            // iterate and compare children lists\n            var childrenMatch = true;\n            var childNode = elm.firstChild;\n            for (var i$1 = 0; i$1 < children.length; i$1++) {\n              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {\n                childrenMatch = false;\n                break\n              }\n              childNode = childNode.nextSibling;\n            }\n            // if childNode is not null, it means the actual childNodes list is\n            // longer than the virtual children list.\n            if (!childrenMatch || childNode) {\n              /* istanbul ignore if */\n              if (process.env.NODE_ENV !== 'production' &&\n                typeof console !== 'undefined' &&\n                !hydrationBailed\n              ) {\n                hydrationBailed = true;\n                console.warn('Parent: ', elm);\n                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);\n              }\n              return false\n            }\n          }\n        }\n      }\n      if (isDef(data)) {\n        var fullInvoke = false;\n        for (var key in data) {\n          if (!isRenderedModule(key)) {\n            fullInvoke = true;\n            invokeCreateHooks(vnode, insertedVnodeQueue);\n            break\n          }\n        }\n        if (!fullInvoke && data['class']) {\n          // ensure collecting deps for deep class bindings for future updates\n          traverse(data['class']);\n        }\n      }\n    } else if (elm.data !== vnode.text) {\n      elm.data = vnode.text;\n    }\n    return true\n  }\n\n  function assertNodeMatch (node, vnode, inVPre) {\n    if (isDef(vnode.tag)) {\n      return vnode.tag.indexOf('vue-component') === 0 || (\n        !isUnknownElement$$1(vnode, inVPre) &&\n        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())\n      )\n    } else {\n      return node.nodeType === (vnode.isComment ? 8 : 3)\n    }\n  }\n\n  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {\n    if (isUndef(vnode)) {\n      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }\n      return\n    }\n\n    var isInitialPatch = false;\n    var insertedVnodeQueue = [];\n\n    if (isUndef(oldVnode)) {\n      // empty mount (likely as component), create new root element\n      isInitialPatch = true;\n      createElm(vnode, insertedVnodeQueue, parentElm, refElm);\n    } else {\n      var isRealElement = isDef(oldVnode.nodeType);\n      if (!isRealElement && sameVnode(oldVnode, vnode)) {\n        // patch existing root node\n        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);\n      } else {\n        if (isRealElement) {\n          // mounting to a real element\n          // check if this is server-rendered content and if we can perform\n          // a successful hydration.\n          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {\n            oldVnode.removeAttribute(SSR_ATTR);\n            hydrating = true;\n          }\n          if (isTrue(hydrating)) {\n            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {\n              invokeInsertHook(vnode, insertedVnodeQueue, true);\n              return oldVnode\n            } else if (process.env.NODE_ENV !== 'production') {\n              warn(\n                'The client-side rendered virtual DOM tree is not matching ' +\n                'server-rendered content. This is likely caused by incorrect ' +\n                'HTML markup, for example nesting block-level elements inside ' +\n                '<p>, or missing <tbody>. Bailing hydration and performing ' +\n                'full client-side render.'\n              );\n            }\n          }\n          // either not server-rendered, or hydration failed.\n          // create an empty node and replace it\n          oldVnode = emptyNodeAt(oldVnode);\n        }\n\n        // replacing existing element\n        var oldElm = oldVnode.elm;\n        var parentElm$1 = nodeOps.parentNode(oldElm);\n\n        // create new node\n        createElm(\n          vnode,\n          insertedVnodeQueue,\n          // extremely rare edge case: do not insert if old element is in a\n          // leaving transition. Only happens when combining transition +\n          // keep-alive + HOCs. (#4590)\n          oldElm._leaveCb ? null : parentElm$1,\n          nodeOps.nextSibling(oldElm)\n        );\n\n        // update parent placeholder node element, recursively\n        if (isDef(vnode.parent)) {\n          var ancestor = vnode.parent;\n          var patchable = isPatchable(vnode);\n          while (ancestor) {\n            for (var i = 0; i < cbs.destroy.length; ++i) {\n              cbs.destroy[i](ancestor);\n            }\n            ancestor.elm = vnode.elm;\n            if (patchable) {\n              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {\n                cbs.create[i$1](emptyNode, ancestor);\n              }\n              // #6513\n              // invoke insert hooks that may have been merged by create hooks.\n              // e.g. for directives that uses the \"inserted\" hook.\n              var insert = ancestor.data.hook.insert;\n              if (insert.merged) {\n                // start at index 1 to avoid re-invoking component mounted hook\n                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {\n                  insert.fns[i$2]();\n                }\n              }\n            } else {\n              registerRef(ancestor);\n            }\n            ancestor = ancestor.parent;\n          }\n        }\n\n        // destroy old node\n        if (isDef(parentElm$1)) {\n          removeVnodes(parentElm$1, [oldVnode], 0, 0);\n        } else if (isDef(oldVnode.tag)) {\n          invokeDestroyHook(oldVnode);\n        }\n      }\n    }\n\n    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);\n    return vnode.elm\n  }\n}\n\n/*  */\n\nvar directives = {\n  create: updateDirectives,\n  update: updateDirectives,\n  destroy: function unbindDirectives (vnode) {\n    updateDirectives(vnode, emptyNode);\n  }\n}\n\nfunction updateDirectives (oldVnode, vnode) {\n  if (oldVnode.data.directives || vnode.data.directives) {\n    _update(oldVnode, vnode);\n  }\n}\n\nfunction _update (oldVnode, vnode) {\n  var isCreate = oldVnode === emptyNode;\n  var isDestroy = vnode === emptyNode;\n  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);\n  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);\n\n  var dirsWithInsert = [];\n  var dirsWithPostpatch = [];\n\n  var key, oldDir, dir;\n  for (key in newDirs) {\n    oldDir = oldDirs[key];\n    dir = newDirs[key];\n    if (!oldDir) {\n      // new directive, bind\n      callHook$1(dir, 'bind', vnode, oldVnode);\n      if (dir.def && dir.def.inserted) {\n        dirsWithInsert.push(dir);\n      }\n    } else {\n      // existing directive, update\n      dir.oldValue = oldDir.value;\n      callHook$1(dir, 'update', vnode, oldVnode);\n      if (dir.def && dir.def.componentUpdated) {\n        dirsWithPostpatch.push(dir);\n      }\n    }\n  }\n\n  if (dirsWithInsert.length) {\n    var callInsert = function () {\n      for (var i = 0; i < dirsWithInsert.length; i++) {\n        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);\n      }\n    };\n    if (isCreate) {\n      mergeVNodeHook(vnode, 'insert', callInsert);\n    } else {\n      callInsert();\n    }\n  }\n\n  if (dirsWithPostpatch.length) {\n    mergeVNodeHook(vnode, 'postpatch', function () {\n      for (var i = 0; i < dirsWithPostpatch.length; i++) {\n        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);\n      }\n    });\n  }\n\n  if (!isCreate) {\n    for (key in oldDirs) {\n      if (!newDirs[key]) {\n        // no longer present, unbind\n        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);\n      }\n    }\n  }\n}\n\nvar emptyModifiers = Object.create(null);\n\nfunction normalizeDirectives$1 (\n  dirs,\n  vm\n) {\n  var res = Object.create(null);\n  if (!dirs) {\n    // $flow-disable-line\n    return res\n  }\n  var i, dir;\n  for (i = 0; i < dirs.length; i++) {\n    dir = dirs[i];\n    if (!dir.modifiers) {\n      // $flow-disable-line\n      dir.modifiers = emptyModifiers;\n    }\n    res[getRawDirName(dir)] = dir;\n    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);\n  }\n  // $flow-disable-line\n  return res\n}\n\nfunction getRawDirName (dir) {\n  return dir.rawName || ((dir.name) + \".\" + (Object.keys(dir.modifiers || {}).join('.')))\n}\n\nfunction callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {\n  var fn = dir.def && dir.def[hook];\n  if (fn) {\n    try {\n      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);\n    } catch (e) {\n      handleError(e, vnode.context, (\"directive \" + (dir.name) + \" \" + hook + \" hook\"));\n    }\n  }\n}\n\nvar baseModules = [\n  ref,\n  directives\n]\n\n/*  */\n\nfunction updateAttrs (oldVnode, vnode) {\n  var opts = vnode.componentOptions;\n  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {\n    return\n  }\n  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {\n    return\n  }\n  var key, cur, old;\n  var elm = vnode.elm;\n  var oldAttrs = oldVnode.data.attrs || {};\n  var attrs = vnode.data.attrs || {};\n  // clone observed objects, as the user probably wants to mutate it\n  if (isDef(attrs.__ob__)) {\n    attrs = vnode.data.attrs = extend({}, attrs);\n  }\n\n  for (key in attrs) {\n    cur = attrs[key];\n    old = oldAttrs[key];\n    if (old !== cur) {\n      setAttr(elm, key, cur);\n    }\n  }\n  // #4391: in IE9, setting type can reset value for input[type=radio]\n  // #6666: IE/Edge forces progress value down to 1 before setting a max\n  /* istanbul ignore if */\n  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {\n    setAttr(elm, 'value', attrs.value);\n  }\n  for (key in oldAttrs) {\n    if (isUndef(attrs[key])) {\n      if (isXlink(key)) {\n        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));\n      } else if (!isEnumeratedAttr(key)) {\n        elm.removeAttribute(key);\n      }\n    }\n  }\n}\n\nfunction setAttr (el, key, value) {\n  if (el.tagName.indexOf('-') > -1) {\n    baseSetAttr(el, key, value);\n  } else if (isBooleanAttr(key)) {\n    // set attribute for blank value\n    // e.g. <option disabled>Select one</option>\n    if (isFalsyAttrValue(value)) {\n      el.removeAttribute(key);\n    } else {\n      // technically allowfullscreen is a boolean attribute for <iframe>,\n      // but Flash expects a value of \"true\" when used on <embed> tag\n      value = key === 'allowfullscreen' && el.tagName === 'EMBED'\n        ? 'true'\n        : key;\n      el.setAttribute(key, value);\n    }\n  } else if (isEnumeratedAttr(key)) {\n    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');\n  } else if (isXlink(key)) {\n    if (isFalsyAttrValue(value)) {\n      el.removeAttributeNS(xlinkNS, getXlinkProp(key));\n    } else {\n      el.setAttributeNS(xlinkNS, key, value);\n    }\n  } else {\n    baseSetAttr(el, key, value);\n  }\n}\n\nfunction baseSetAttr (el, key, value) {\n  if (isFalsyAttrValue(value)) {\n    el.removeAttribute(key);\n  } else {\n    // #7138: IE10 & 11 fires input event when setting placeholder on\n    // <textarea>... block the first input event and remove the blocker\n    // immediately.\n    /* istanbul ignore if */\n    if (\n      isIE && !isIE9 &&\n      el.tagName === 'TEXTAREA' &&\n      key === 'placeholder' && !el.__ieph\n    ) {\n      var blocker = function (e) {\n        e.stopImmediatePropagation();\n        el.removeEventListener('input', blocker);\n      };\n      el.addEventListener('input', blocker);\n      // $flow-disable-line\n      el.__ieph = true; /* IE placeholder patched */\n    }\n    el.setAttribute(key, value);\n  }\n}\n\nvar attrs = {\n  create: updateAttrs,\n  update: updateAttrs\n}\n\n/*  */\n\nfunction updateClass (oldVnode, vnode) {\n  var el = vnode.elm;\n  var data = vnode.data;\n  var oldData = oldVnode.data;\n  if (\n    isUndef(data.staticClass) &&\n    isUndef(data.class) && (\n      isUndef(oldData) || (\n        isUndef(oldData.staticClass) &&\n        isUndef(oldData.class)\n      )\n    )\n  ) {\n    return\n  }\n\n  var cls = genClassForVnode(vnode);\n\n  // handle transition classes\n  var transitionClass = el._transitionClasses;\n  if (isDef(transitionClass)) {\n    cls = concat(cls, stringifyClass(transitionClass));\n  }\n\n  // set the class\n  if (cls !== el._prevClass) {\n    el.setAttribute('class', cls);\n    el._prevClass = cls;\n  }\n}\n\nvar klass = {\n  create: updateClass,\n  update: updateClass\n}\n\n/*  */\n\n/*  */\n\n\n\n\n\n\n\n\n\n// add a raw attr (use this in preTransforms)\n\n\n\n\n\n\n\n\n// note: this only removes the attr from the Array (attrsList) so that it\n// doesn't get processed by processAttrs.\n// By default it does NOT remove it from the map (attrsMap) because the map is\n// needed during codegen.\n\n/*  */\n\n/**\n * Cross-platform code generation for component v-model\n */\n\n\n/**\n * Cross-platform codegen helper for generating v-model value assignment code.\n */\n\n/*  */\n\n// in some cases, the event used has to be determined at runtime\n// so we used some reserved tokens during compile.\nvar RANGE_TOKEN = '__r';\nvar CHECKBOX_RADIO_TOKEN = '__c';\n\n/*  */\n\n// normalize v-model event tokens that can only be determined at runtime.\n// it's important to place the event as the first in the array because\n// the whole point is ensuring the v-model callback gets called before\n// user-attached handlers.\nfunction normalizeEvents (on) {\n  /* istanbul ignore if */\n  if (isDef(on[RANGE_TOKEN])) {\n    // IE input[type=range] only supports `change` event\n    var event = isIE ? 'change' : 'input';\n    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);\n    delete on[RANGE_TOKEN];\n  }\n  // This was originally intended to fix #4521 but no longer necessary\n  // after 2.5. Keeping it for backwards compat with generated code from < 2.4\n  /* istanbul ignore if */\n  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {\n    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);\n    delete on[CHECKBOX_RADIO_TOKEN];\n  }\n}\n\nvar target$1;\n\nfunction createOnceHandler (handler, event, capture) {\n  var _target = target$1; // save current target element in closure\n  return function onceHandler () {\n    var res = handler.apply(null, arguments);\n    if (res !== null) {\n      remove$2(event, onceHandler, capture, _target);\n    }\n  }\n}\n\nfunction add$1 (\n  event,\n  handler,\n  once$$1,\n  capture,\n  passive\n) {\n  handler = withMacroTask(handler);\n  if (once$$1) { handler = createOnceHandler(handler, event, capture); }\n  target$1.addEventListener(\n    event,\n    handler,\n    supportsPassive\n      ? { capture: capture, passive: passive }\n      : capture\n  );\n}\n\nfunction remove$2 (\n  event,\n  handler,\n  capture,\n  _target\n) {\n  (_target || target$1).removeEventListener(\n    event,\n    handler._withTask || handler,\n    capture\n  );\n}\n\nfunction updateDOMListeners (oldVnode, vnode) {\n  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {\n    return\n  }\n  var on = vnode.data.on || {};\n  var oldOn = oldVnode.data.on || {};\n  target$1 = vnode.elm;\n  normalizeEvents(on);\n  updateListeners(on, oldOn, add$1, remove$2, vnode.context);\n  target$1 = undefined;\n}\n\nvar events = {\n  create: updateDOMListeners,\n  update: updateDOMListeners\n}\n\n/*  */\n\nfunction updateDOMProps (oldVnode, vnode) {\n  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {\n    return\n  }\n  var key, cur;\n  var elm = vnode.elm;\n  var oldProps = oldVnode.data.domProps || {};\n  var props = vnode.data.domProps || {};\n  // clone observed objects, as the user probably wants to mutate it\n  if (isDef(props.__ob__)) {\n    props = vnode.data.domProps = extend({}, props);\n  }\n\n  for (key in oldProps) {\n    if (isUndef(props[key])) {\n      elm[key] = '';\n    }\n  }\n  for (key in props) {\n    cur = props[key];\n    // ignore children if the node has textContent or innerHTML,\n    // as these will throw away existing DOM nodes and cause removal errors\n    // on subsequent patches (#3360)\n    if (key === 'textContent' || key === 'innerHTML') {\n      if (vnode.children) { vnode.children.length = 0; }\n      if (cur === oldProps[key]) { continue }\n      // #6601 work around Chrome version <= 55 bug where single textNode\n      // replaced by innerHTML/textContent retains its parentNode property\n      if (elm.childNodes.length === 1) {\n        elm.removeChild(elm.childNodes[0]);\n      }\n    }\n\n    if (key === 'value') {\n      // store value as _value as well since\n      // non-string values will be stringified\n      elm._value = cur;\n      // avoid resetting cursor position when value is the same\n      var strCur = isUndef(cur) ? '' : String(cur);\n      if (shouldUpdateValue(elm, strCur)) {\n        elm.value = strCur;\n      }\n    } else {\n      elm[key] = cur;\n    }\n  }\n}\n\n// check platforms/web/util/attrs.js acceptValue\n\n\nfunction shouldUpdateValue (elm, checkVal) {\n  return (!elm.composing && (\n    elm.tagName === 'OPTION' ||\n    isNotInFocusAndDirty(elm, checkVal) ||\n    isDirtyWithModifiers(elm, checkVal)\n  ))\n}\n\nfunction isNotInFocusAndDirty (elm, checkVal) {\n  // return true when textbox (.number and .trim) loses focus and its value is\n  // not equal to the updated value\n  var notInFocus = true;\n  // #6157\n  // work around IE bug when accessing document.activeElement in an iframe\n  try { notInFocus = document.activeElement !== elm; } catch (e) {}\n  return notInFocus && elm.value !== checkVal\n}\n\nfunction isDirtyWithModifiers (elm, newVal) {\n  var value = elm.value;\n  var modifiers = elm._vModifiers; // injected by v-model runtime\n  if (isDef(modifiers)) {\n    if (modifiers.lazy) {\n      // inputs with lazy should only be updated when not in focus\n      return false\n    }\n    if (modifiers.number) {\n      return toNumber(value) !== toNumber(newVal)\n    }\n    if (modifiers.trim) {\n      return value.trim() !== newVal.trim()\n    }\n  }\n  return value !== newVal\n}\n\nvar domProps = {\n  create: updateDOMProps,\n  update: updateDOMProps\n}\n\n/*  */\n\nvar parseStyleText = cached(function (cssText) {\n  var res = {};\n  var listDelimiter = /;(?![^(]*\\))/g;\n  var propertyDelimiter = /:(.+)/;\n  cssText.split(listDelimiter).forEach(function (item) {\n    if (item) {\n      var tmp = item.split(propertyDelimiter);\n      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());\n    }\n  });\n  return res\n});\n\n// merge static and dynamic style data on the same vnode\nfunction normalizeStyleData (data) {\n  var style = normalizeStyleBinding(data.style);\n  // static style is pre-processed into an object during compilation\n  // and is always a fresh object, so it's safe to merge into it\n  return data.staticStyle\n    ? extend(data.staticStyle, style)\n    : style\n}\n\n// normalize possible array / string values into Object\nfunction normalizeStyleBinding (bindingStyle) {\n  if (Array.isArray(bindingStyle)) {\n    return toObject(bindingStyle)\n  }\n  if (typeof bindingStyle === 'string') {\n    return parseStyleText(bindingStyle)\n  }\n  return bindingStyle\n}\n\n/**\n * parent component style should be after child's\n * so that parent component's style could override it\n */\nfunction getStyle (vnode, checkChild) {\n  var res = {};\n  var styleData;\n\n  if (checkChild) {\n    var childNode = vnode;\n    while (childNode.componentInstance) {\n      childNode = childNode.componentInstance._vnode;\n      if (\n        childNode && childNode.data &&\n        (styleData = normalizeStyleData(childNode.data))\n      ) {\n        extend(res, styleData);\n      }\n    }\n  }\n\n  if ((styleData = normalizeStyleData(vnode.data))) {\n    extend(res, styleData);\n  }\n\n  var parentNode = vnode;\n  while ((parentNode = parentNode.parent)) {\n    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {\n      extend(res, styleData);\n    }\n  }\n  return res\n}\n\n/*  */\n\nvar cssVarRE = /^--/;\nvar importantRE = /\\s*!important$/;\nvar setProp = function (el, name, val) {\n  /* istanbul ignore if */\n  if (cssVarRE.test(name)) {\n    el.style.setProperty(name, val);\n  } else if (importantRE.test(val)) {\n    el.style.setProperty(name, val.replace(importantRE, ''), 'important');\n  } else {\n    var normalizedName = normalize(name);\n    if (Array.isArray(val)) {\n      // Support values array created by autoprefixer, e.g.\n      // {display: [\"-webkit-box\", \"-ms-flexbox\", \"flex\"]}\n      // Set them one by one, and the browser will only set those it can recognize\n      for (var i = 0, len = val.length; i < len; i++) {\n        el.style[normalizedName] = val[i];\n      }\n    } else {\n      el.style[normalizedName] = val;\n    }\n  }\n};\n\nvar vendorNames = ['Webkit', 'Moz', 'ms'];\n\nvar emptyStyle;\nvar normalize = cached(function (prop) {\n  emptyStyle = emptyStyle || document.createElement('div').style;\n  prop = camelize(prop);\n  if (prop !== 'filter' && (prop in emptyStyle)) {\n    return prop\n  }\n  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);\n  for (var i = 0; i < vendorNames.length; i++) {\n    var name = vendorNames[i] + capName;\n    if (name in emptyStyle) {\n      return name\n    }\n  }\n});\n\nfunction updateStyle (oldVnode, vnode) {\n  var data = vnode.data;\n  var oldData = oldVnode.data;\n\n  if (isUndef(data.staticStyle) && isUndef(data.style) &&\n    isUndef(oldData.staticStyle) && isUndef(oldData.style)\n  ) {\n    return\n  }\n\n  var cur, name;\n  var el = vnode.elm;\n  var oldStaticStyle = oldData.staticStyle;\n  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};\n\n  // if static style exists, stylebinding already merged into it when doing normalizeStyleData\n  var oldStyle = oldStaticStyle || oldStyleBinding;\n\n  var style = normalizeStyleBinding(vnode.data.style) || {};\n\n  // store normalized style under a different key for next diff\n  // make sure to clone it if it's reactive, since the user likely wants\n  // to mutate it.\n  vnode.data.normalizedStyle = isDef(style.__ob__)\n    ? extend({}, style)\n    : style;\n\n  var newStyle = getStyle(vnode, true);\n\n  for (name in oldStyle) {\n    if (isUndef(newStyle[name])) {\n      setProp(el, name, '');\n    }\n  }\n  for (name in newStyle) {\n    cur = newStyle[name];\n    if (cur !== oldStyle[name]) {\n      // ie9 setting to null has no effect, must use empty string\n      setProp(el, name, cur == null ? '' : cur);\n    }\n  }\n}\n\nvar style = {\n  create: updateStyle,\n  update: updateStyle\n}\n\n/*  */\n\n/**\n * Add class with compatibility for SVG since classList is not supported on\n * SVG elements in IE\n */\nfunction addClass (el, cls) {\n  /* istanbul ignore if */\n  if (!cls || !(cls = cls.trim())) {\n    return\n  }\n\n  /* istanbul ignore else */\n  if (el.classList) {\n    if (cls.indexOf(' ') > -1) {\n      cls.split(/\\s+/).forEach(function (c) { return el.classList.add(c); });\n    } else {\n      el.classList.add(cls);\n    }\n  } else {\n    var cur = \" \" + (el.getAttribute('class') || '') + \" \";\n    if (cur.indexOf(' ' + cls + ' ') < 0) {\n      el.setAttribute('class', (cur + cls).trim());\n    }\n  }\n}\n\n/**\n * Remove class with compatibility for SVG since classList is not supported on\n * SVG elements in IE\n */\nfunction removeClass (el, cls) {\n  /* istanbul ignore if */\n  if (!cls || !(cls = cls.trim())) {\n    return\n  }\n\n  /* istanbul ignore else */\n  if (el.classList) {\n    if (cls.indexOf(' ') > -1) {\n      cls.split(/\\s+/).forEach(function (c) { return el.classList.remove(c); });\n    } else {\n      el.classList.remove(cls);\n    }\n    if (!el.classList.length) {\n      el.removeAttribute('class');\n    }\n  } else {\n    var cur = \" \" + (el.getAttribute('class') || '') + \" \";\n    var tar = ' ' + cls + ' ';\n    while (cur.indexOf(tar) >= 0) {\n      cur = cur.replace(tar, ' ');\n    }\n    cur = cur.trim();\n    if (cur) {\n      el.setAttribute('class', cur);\n    } else {\n      el.removeAttribute('class');\n    }\n  }\n}\n\n/*  */\n\nfunction resolveTransition (def) {\n  if (!def) {\n    return\n  }\n  /* istanbul ignore else */\n  if (typeof def === 'object') {\n    var res = {};\n    if (def.css !== false) {\n      extend(res, autoCssTransition(def.name || 'v'));\n    }\n    extend(res, def);\n    return res\n  } else if (typeof def === 'string') {\n    return autoCssTransition(def)\n  }\n}\n\nvar autoCssTransition = cached(function (name) {\n  return {\n    enterClass: (name + \"-enter\"),\n    enterToClass: (name + \"-enter-to\"),\n    enterActiveClass: (name + \"-enter-active\"),\n    leaveClass: (name + \"-leave\"),\n    leaveToClass: (name + \"-leave-to\"),\n    leaveActiveClass: (name + \"-leave-active\")\n  }\n});\n\nvar hasTransition = inBrowser && !isIE9;\nvar TRANSITION = 'transition';\nvar ANIMATION = 'animation';\n\n// Transition property/event sniffing\nvar transitionProp = 'transition';\nvar transitionEndEvent = 'transitionend';\nvar animationProp = 'animation';\nvar animationEndEvent = 'animationend';\nif (hasTransition) {\n  /* istanbul ignore if */\n  if (window.ontransitionend === undefined &&\n    window.onwebkittransitionend !== undefined\n  ) {\n    transitionProp = 'WebkitTransition';\n    transitionEndEvent = 'webkitTransitionEnd';\n  }\n  if (window.onanimationend === undefined &&\n    window.onwebkitanimationend !== undefined\n  ) {\n    animationProp = 'WebkitAnimation';\n    animationEndEvent = 'webkitAnimationEnd';\n  }\n}\n\n// binding to window is necessary to make hot reload work in IE in strict mode\nvar raf = inBrowser\n  ? window.requestAnimationFrame\n    ? window.requestAnimationFrame.bind(window)\n    : setTimeout\n  : /* istanbul ignore next */ function (fn) { return fn(); };\n\nfunction nextFrame (fn) {\n  raf(function () {\n    raf(fn);\n  });\n}\n\nfunction addTransitionClass (el, cls) {\n  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);\n  if (transitionClasses.indexOf(cls) < 0) {\n    transitionClasses.push(cls);\n    addClass(el, cls);\n  }\n}\n\nfunction removeTransitionClass (el, cls) {\n  if (el._transitionClasses) {\n    remove(el._transitionClasses, cls);\n  }\n  removeClass(el, cls);\n}\n\nfunction whenTransitionEnds (\n  el,\n  expectedType,\n  cb\n) {\n  var ref = getTransitionInfo(el, expectedType);\n  var type = ref.type;\n  var timeout = ref.timeout;\n  var propCount = ref.propCount;\n  if (!type) { return cb() }\n  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;\n  var ended = 0;\n  var end = function () {\n    el.removeEventListener(event, onEnd);\n    cb();\n  };\n  var onEnd = function (e) {\n    if (e.target === el) {\n      if (++ended >= propCount) {\n        end();\n      }\n    }\n  };\n  setTimeout(function () {\n    if (ended < propCount) {\n      end();\n    }\n  }, timeout + 1);\n  el.addEventListener(event, onEnd);\n}\n\nvar transformRE = /\\b(transform|all)(,|$)/;\n\nfunction getTransitionInfo (el, expectedType) {\n  var styles = window.getComputedStyle(el);\n  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');\n  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');\n  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);\n  var animationDelays = styles[animationProp + 'Delay'].split(', ');\n  var animationDurations = styles[animationProp + 'Duration'].split(', ');\n  var animationTimeout = getTimeout(animationDelays, animationDurations);\n\n  var type;\n  var timeout = 0;\n  var propCount = 0;\n  /* istanbul ignore if */\n  if (expectedType === TRANSITION) {\n    if (transitionTimeout > 0) {\n      type = TRANSITION;\n      timeout = transitionTimeout;\n      propCount = transitionDurations.length;\n    }\n  } else if (expectedType === ANIMATION) {\n    if (animationTimeout > 0) {\n      type = ANIMATION;\n      timeout = animationTimeout;\n      propCount = animationDurations.length;\n    }\n  } else {\n    timeout = Math.max(transitionTimeout, animationTimeout);\n    type = timeout > 0\n      ? transitionTimeout > animationTimeout\n        ? TRANSITION\n        : ANIMATION\n      : null;\n    propCount = type\n      ? type === TRANSITION\n        ? transitionDurations.length\n        : animationDurations.length\n      : 0;\n  }\n  var hasTransform =\n    type === TRANSITION &&\n    transformRE.test(styles[transitionProp + 'Property']);\n  return {\n    type: type,\n    timeout: timeout,\n    propCount: propCount,\n    hasTransform: hasTransform\n  }\n}\n\nfunction getTimeout (delays, durations) {\n  /* istanbul ignore next */\n  while (delays.length < durations.length) {\n    delays = delays.concat(delays);\n  }\n\n  return Math.max.apply(null, durations.map(function (d, i) {\n    return toMs(d) + toMs(delays[i])\n  }))\n}\n\nfunction toMs (s) {\n  return Number(s.slice(0, -1)) * 1000\n}\n\n/*  */\n\nfunction enter (vnode, toggleDisplay) {\n  var el = vnode.elm;\n\n  // call leave callback now\n  if (isDef(el._leaveCb)) {\n    el._leaveCb.cancelled = true;\n    el._leaveCb();\n  }\n\n  var data = resolveTransition(vnode.data.transition);\n  if (isUndef(data)) {\n    return\n  }\n\n  /* istanbul ignore if */\n  if (isDef(el._enterCb) || el.nodeType !== 1) {\n    return\n  }\n\n  var css = data.css;\n  var type = data.type;\n  var enterClass = data.enterClass;\n  var enterToClass = data.enterToClass;\n  var enterActiveClass = data.enterActiveClass;\n  var appearClass = data.appearClass;\n  var appearToClass = data.appearToClass;\n  var appearActiveClass = data.appearActiveClass;\n  var beforeEnter = data.beforeEnter;\n  var enter = data.enter;\n  var afterEnter = data.afterEnter;\n  var enterCancelled = data.enterCancelled;\n  var beforeAppear = data.beforeAppear;\n  var appear = data.appear;\n  var afterAppear = data.afterAppear;\n  var appearCancelled = data.appearCancelled;\n  var duration = data.duration;\n\n  // activeInstance will always be the <transition> component managing this\n  // transition. One edge case to check is when the <transition> is placed\n  // as the root node of a child component. In that case we need to check\n  // <transition>'s parent for appear check.\n  var context = activeInstance;\n  var transitionNode = activeInstance.$vnode;\n  while (transitionNode && transitionNode.parent) {\n    transitionNode = transitionNode.parent;\n    context = transitionNode.context;\n  }\n\n  var isAppear = !context._isMounted || !vnode.isRootInsert;\n\n  if (isAppear && !appear && appear !== '') {\n    return\n  }\n\n  var startClass = isAppear && appearClass\n    ? appearClass\n    : enterClass;\n  var activeClass = isAppear && appearActiveClass\n    ? appearActiveClass\n    : enterActiveClass;\n  var toClass = isAppear && appearToClass\n    ? appearToClass\n    : enterToClass;\n\n  var beforeEnterHook = isAppear\n    ? (beforeAppear || beforeEnter)\n    : beforeEnter;\n  var enterHook = isAppear\n    ? (typeof appear === 'function' ? appear : enter)\n    : enter;\n  var afterEnterHook = isAppear\n    ? (afterAppear || afterEnter)\n    : afterEnter;\n  var enterCancelledHook = isAppear\n    ? (appearCancelled || enterCancelled)\n    : enterCancelled;\n\n  var explicitEnterDuration = toNumber(\n    isObject(duration)\n      ? duration.enter\n      : duration\n  );\n\n  if (process.env.NODE_ENV !== 'production' && explicitEnterDuration != null) {\n    checkDuration(explicitEnterDuration, 'enter', vnode);\n  }\n\n  var expectsCSS = css !== false && !isIE9;\n  var userWantsControl = getHookArgumentsLength(enterHook);\n\n  var cb = el._enterCb = once(function () {\n    if (expectsCSS) {\n      removeTransitionClass(el, toClass);\n      removeTransitionClass(el, activeClass);\n    }\n    if (cb.cancelled) {\n      if (expectsCSS) {\n        removeTransitionClass(el, startClass);\n      }\n      enterCancelledHook && enterCancelledHook(el);\n    } else {\n      afterEnterHook && afterEnterHook(el);\n    }\n    el._enterCb = null;\n  });\n\n  if (!vnode.data.show) {\n    // remove pending leave element on enter by injecting an insert hook\n    mergeVNodeHook(vnode, 'insert', function () {\n      var parent = el.parentNode;\n      var pendingNode = parent && parent._pending && parent._pending[vnode.key];\n      if (pendingNode &&\n        pendingNode.tag === vnode.tag &&\n        pendingNode.elm._leaveCb\n      ) {\n        pendingNode.elm._leaveCb();\n      }\n      enterHook && enterHook(el, cb);\n    });\n  }\n\n  // start enter transition\n  beforeEnterHook && beforeEnterHook(el);\n  if (expectsCSS) {\n    addTransitionClass(el, startClass);\n    addTransitionClass(el, activeClass);\n    nextFrame(function () {\n      removeTransitionClass(el, startClass);\n      if (!cb.cancelled) {\n        addTransitionClass(el, toClass);\n        if (!userWantsControl) {\n          if (isValidDuration(explicitEnterDuration)) {\n            setTimeout(cb, explicitEnterDuration);\n          } else {\n            whenTransitionEnds(el, type, cb);\n          }\n        }\n      }\n    });\n  }\n\n  if (vnode.data.show) {\n    toggleDisplay && toggleDisplay();\n    enterHook && enterHook(el, cb);\n  }\n\n  if (!expectsCSS && !userWantsControl) {\n    cb();\n  }\n}\n\nfunction leave (vnode, rm) {\n  var el = vnode.elm;\n\n  // call enter callback now\n  if (isDef(el._enterCb)) {\n    el._enterCb.cancelled = true;\n    el._enterCb();\n  }\n\n  var data = resolveTransition(vnode.data.transition);\n  if (isUndef(data) || el.nodeType !== 1) {\n    return rm()\n  }\n\n  /* istanbul ignore if */\n  if (isDef(el._leaveCb)) {\n    return\n  }\n\n  var css = data.css;\n  var type = data.type;\n  var leaveClass = data.leaveClass;\n  var leaveToClass = data.leaveToClass;\n  var leaveActiveClass = data.leaveActiveClass;\n  var beforeLeave = data.beforeLeave;\n  var leave = data.leave;\n  var afterLeave = data.afterLeave;\n  var leaveCancelled = data.leaveCancelled;\n  var delayLeave = data.delayLeave;\n  var duration = data.duration;\n\n  var expectsCSS = css !== false && !isIE9;\n  var userWantsControl = getHookArgumentsLength(leave);\n\n  var explicitLeaveDuration = toNumber(\n    isObject(duration)\n      ? duration.leave\n      : duration\n  );\n\n  if (process.env.NODE_ENV !== 'production' && isDef(explicitLeaveDuration)) {\n    checkDuration(explicitLeaveDuration, 'leave', vnode);\n  }\n\n  var cb = el._leaveCb = once(function () {\n    if (el.parentNode && el.parentNode._pending) {\n      el.parentNode._pending[vnode.key] = null;\n    }\n    if (expectsCSS) {\n      removeTransitionClass(el, leaveToClass);\n      removeTransitionClass(el, leaveActiveClass);\n    }\n    if (cb.cancelled) {\n      if (expectsCSS) {\n        removeTransitionClass(el, leaveClass);\n      }\n      leaveCancelled && leaveCancelled(el);\n    } else {\n      rm();\n      afterLeave && afterLeave(el);\n    }\n    el._leaveCb = null;\n  });\n\n  if (delayLeave) {\n    delayLeave(performLeave);\n  } else {\n    performLeave();\n  }\n\n  function performLeave () {\n    // the delayed leave may have already been cancelled\n    if (cb.cancelled) {\n      return\n    }\n    // record leaving element\n    if (!vnode.data.show) {\n      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;\n    }\n    beforeLeave && beforeLeave(el);\n    if (expectsCSS) {\n      addTransitionClass(el, leaveClass);\n      addTransitionClass(el, leaveActiveClass);\n      nextFrame(function () {\n        removeTransitionClass(el, leaveClass);\n        if (!cb.cancelled) {\n          addTransitionClass(el, leaveToClass);\n          if (!userWantsControl) {\n            if (isValidDuration(explicitLeaveDuration)) {\n              setTimeout(cb, explicitLeaveDuration);\n            } else {\n              whenTransitionEnds(el, type, cb);\n            }\n          }\n        }\n      });\n    }\n    leave && leave(el, cb);\n    if (!expectsCSS && !userWantsControl) {\n      cb();\n    }\n  }\n}\n\n// only used in dev mode\nfunction checkDuration (val, name, vnode) {\n  if (typeof val !== 'number') {\n    warn(\n      \"<transition> explicit \" + name + \" duration is not a valid number - \" +\n      \"got \" + (JSON.stringify(val)) + \".\",\n      vnode.context\n    );\n  } else if (isNaN(val)) {\n    warn(\n      \"<transition> explicit \" + name + \" duration is NaN - \" +\n      'the duration expression might be incorrect.',\n      vnode.context\n    );\n  }\n}\n\nfunction isValidDuration (val) {\n  return typeof val === 'number' && !isNaN(val)\n}\n\n/**\n * Normalize a transition hook's argument length. The hook may be:\n * - a merged hook (invoker) with the original in .fns\n * - a wrapped component method (check ._length)\n * - a plain function (.length)\n */\nfunction getHookArgumentsLength (fn) {\n  if (isUndef(fn)) {\n    return false\n  }\n  var invokerFns = fn.fns;\n  if (isDef(invokerFns)) {\n    // invoker\n    return getHookArgumentsLength(\n      Array.isArray(invokerFns)\n        ? invokerFns[0]\n        : invokerFns\n    )\n  } else {\n    return (fn._length || fn.length) > 1\n  }\n}\n\nfunction _enter (_, vnode) {\n  if (vnode.data.show !== true) {\n    enter(vnode);\n  }\n}\n\nvar transition = inBrowser ? {\n  create: _enter,\n  activate: _enter,\n  remove: function remove$$1 (vnode, rm) {\n    /* istanbul ignore else */\n    if (vnode.data.show !== true) {\n      leave(vnode, rm);\n    } else {\n      rm();\n    }\n  }\n} : {}\n\nvar platformModules = [\n  attrs,\n  klass,\n  events,\n  domProps,\n  style,\n  transition\n]\n\n/*  */\n\n// the directive module should be applied last, after all\n// built-in modules have been applied.\nvar modules = platformModules.concat(baseModules);\n\nvar patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });\n\n/**\n * Not type checking this file because flow doesn't like attaching\n * properties to Elements.\n */\n\n/* istanbul ignore if */\nif (isIE9) {\n  // http://www.matts411.com/post/internet-explorer-9-oninput/\n  document.addEventListener('selectionchange', function () {\n    var el = document.activeElement;\n    if (el && el.vmodel) {\n      trigger(el, 'input');\n    }\n  });\n}\n\nvar directive = {\n  inserted: function inserted (el, binding, vnode, oldVnode) {\n    if (vnode.tag === 'select') {\n      // #6903\n      if (oldVnode.elm && !oldVnode.elm._vOptions) {\n        mergeVNodeHook(vnode, 'postpatch', function () {\n          directive.componentUpdated(el, binding, vnode);\n        });\n      } else {\n        setSelected(el, binding, vnode.context);\n      }\n      el._vOptions = [].map.call(el.options, getValue);\n    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {\n      el._vModifiers = binding.modifiers;\n      if (!binding.modifiers.lazy) {\n        el.addEventListener('compositionstart', onCompositionStart);\n        el.addEventListener('compositionend', onCompositionEnd);\n        // Safari < 10.2 & UIWebView doesn't fire compositionend when\n        // switching focus before confirming composition choice\n        // this also fixes the issue where some browsers e.g. iOS Chrome\n        // fires \"change\" instead of \"input\" on autocomplete.\n        el.addEventListener('change', onCompositionEnd);\n        /* istanbul ignore if */\n        if (isIE9) {\n          el.vmodel = true;\n        }\n      }\n    }\n  },\n\n  componentUpdated: function componentUpdated (el, binding, vnode) {\n    if (vnode.tag === 'select') {\n      setSelected(el, binding, vnode.context);\n      // in case the options rendered by v-for have changed,\n      // it's possible that the value is out-of-sync with the rendered options.\n      // detect such cases and filter out values that no longer has a matching\n      // option in the DOM.\n      var prevOptions = el._vOptions;\n      var curOptions = el._vOptions = [].map.call(el.options, getValue);\n      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {\n        // trigger change event if\n        // no matching option found for at least one value\n        var needReset = el.multiple\n          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })\n          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);\n        if (needReset) {\n          trigger(el, 'change');\n        }\n      }\n    }\n  }\n};\n\nfunction setSelected (el, binding, vm) {\n  actuallySetSelected(el, binding, vm);\n  /* istanbul ignore if */\n  if (isIE || isEdge) {\n    setTimeout(function () {\n      actuallySetSelected(el, binding, vm);\n    }, 0);\n  }\n}\n\nfunction actuallySetSelected (el, binding, vm) {\n  var value = binding.value;\n  var isMultiple = el.multiple;\n  if (isMultiple && !Array.isArray(value)) {\n    process.env.NODE_ENV !== 'production' && warn(\n      \"<select multiple v-model=\\\"\" + (binding.expression) + \"\\\"> \" +\n      \"expects an Array value for its binding, but got \" + (Object.prototype.toString.call(value).slice(8, -1)),\n      vm\n    );\n    return\n  }\n  var selected, option;\n  for (var i = 0, l = el.options.length; i < l; i++) {\n    option = el.options[i];\n    if (isMultiple) {\n      selected = looseIndexOf(value, getValue(option)) > -1;\n      if (option.selected !== selected) {\n        option.selected = selected;\n      }\n    } else {\n      if (looseEqual(getValue(option), value)) {\n        if (el.selectedIndex !== i) {\n          el.selectedIndex = i;\n        }\n        return\n      }\n    }\n  }\n  if (!isMultiple) {\n    el.selectedIndex = -1;\n  }\n}\n\nfunction hasNoMatchingOption (value, options) {\n  return options.every(function (o) { return !looseEqual(o, value); })\n}\n\nfunction getValue (option) {\n  return '_value' in option\n    ? option._value\n    : option.value\n}\n\nfunction onCompositionStart (e) {\n  e.target.composing = true;\n}\n\nfunction onCompositionEnd (e) {\n  // prevent triggering an input event for no reason\n  if (!e.target.composing) { return }\n  e.target.composing = false;\n  trigger(e.target, 'input');\n}\n\nfunction trigger (el, type) {\n  var e = document.createEvent('HTMLEvents');\n  e.initEvent(type, true, true);\n  el.dispatchEvent(e);\n}\n\n/*  */\n\n// recursively search for possible transition defined inside the component root\nfunction locateNode (vnode) {\n  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)\n    ? locateNode(vnode.componentInstance._vnode)\n    : vnode\n}\n\nvar show = {\n  bind: function bind (el, ref, vnode) {\n    var value = ref.value;\n\n    vnode = locateNode(vnode);\n    var transition$$1 = vnode.data && vnode.data.transition;\n    var originalDisplay = el.__vOriginalDisplay =\n      el.style.display === 'none' ? '' : el.style.display;\n    if (value && transition$$1) {\n      vnode.data.show = true;\n      enter(vnode, function () {\n        el.style.display = originalDisplay;\n      });\n    } else {\n      el.style.display = value ? originalDisplay : 'none';\n    }\n  },\n\n  update: function update (el, ref, vnode) {\n    var value = ref.value;\n    var oldValue = ref.oldValue;\n\n    /* istanbul ignore if */\n    if (!value === !oldValue) { return }\n    vnode = locateNode(vnode);\n    var transition$$1 = vnode.data && vnode.data.transition;\n    if (transition$$1) {\n      vnode.data.show = true;\n      if (value) {\n        enter(vnode, function () {\n          el.style.display = el.__vOriginalDisplay;\n        });\n      } else {\n        leave(vnode, function () {\n          el.style.display = 'none';\n        });\n      }\n    } else {\n      el.style.display = value ? el.__vOriginalDisplay : 'none';\n    }\n  },\n\n  unbind: function unbind (\n    el,\n    binding,\n    vnode,\n    oldVnode,\n    isDestroy\n  ) {\n    if (!isDestroy) {\n      el.style.display = el.__vOriginalDisplay;\n    }\n  }\n}\n\nvar platformDirectives = {\n  model: directive,\n  show: show\n}\n\n/*  */\n\n// Provides transition support for a single element/component.\n// supports transition mode (out-in / in-out)\n\nvar transitionProps = {\n  name: String,\n  appear: Boolean,\n  css: Boolean,\n  mode: String,\n  type: String,\n  enterClass: String,\n  leaveClass: String,\n  enterToClass: String,\n  leaveToClass: String,\n  enterActiveClass: String,\n  leaveActiveClass: String,\n  appearClass: String,\n  appearActiveClass: String,\n  appearToClass: String,\n  duration: [Number, String, Object]\n};\n\n// in case the child is also an abstract component, e.g. <keep-alive>\n// we want to recursively retrieve the real component to be rendered\nfunction getRealChild (vnode) {\n  var compOptions = vnode && vnode.componentOptions;\n  if (compOptions && compOptions.Ctor.options.abstract) {\n    return getRealChild(getFirstComponentChild(compOptions.children))\n  } else {\n    return vnode\n  }\n}\n\nfunction extractTransitionData (comp) {\n  var data = {};\n  var options = comp.$options;\n  // props\n  for (var key in options.propsData) {\n    data[key] = comp[key];\n  }\n  // events.\n  // extract listeners and pass them directly to the transition methods\n  var listeners = options._parentListeners;\n  for (var key$1 in listeners) {\n    data[camelize(key$1)] = listeners[key$1];\n  }\n  return data\n}\n\nfunction placeholder (h, rawChild) {\n  if (/\\d-keep-alive$/.test(rawChild.tag)) {\n    return h('keep-alive', {\n      props: rawChild.componentOptions.propsData\n    })\n  }\n}\n\nfunction hasParentTransition (vnode) {\n  while ((vnode = vnode.parent)) {\n    if (vnode.data.transition) {\n      return true\n    }\n  }\n}\n\nfunction isSameChild (child, oldChild) {\n  return oldChild.key === child.key && oldChild.tag === child.tag\n}\n\nvar Transition = {\n  name: 'transition',\n  props: transitionProps,\n  abstract: true,\n\n  render: function render (h) {\n    var this$1 = this;\n\n    var children = this.$slots.default;\n    if (!children) {\n      return\n    }\n\n    // filter out text nodes (possible whitespaces)\n    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });\n    /* istanbul ignore if */\n    if (!children.length) {\n      return\n    }\n\n    // warn multiple elements\n    if (process.env.NODE_ENV !== 'production' && children.length > 1) {\n      warn(\n        '<transition> can only be used on a single element. Use ' +\n        '<transition-group> for lists.',\n        this.$parent\n      );\n    }\n\n    var mode = this.mode;\n\n    // warn invalid mode\n    if (process.env.NODE_ENV !== 'production' &&\n      mode && mode !== 'in-out' && mode !== 'out-in'\n    ) {\n      warn(\n        'invalid <transition> mode: ' + mode,\n        this.$parent\n      );\n    }\n\n    var rawChild = children[0];\n\n    // if this is a component root node and the component's\n    // parent container node also has transition, skip.\n    if (hasParentTransition(this.$vnode)) {\n      return rawChild\n    }\n\n    // apply transition data to child\n    // use getRealChild() to ignore abstract components e.g. keep-alive\n    var child = getRealChild(rawChild);\n    /* istanbul ignore if */\n    if (!child) {\n      return rawChild\n    }\n\n    if (this._leaving) {\n      return placeholder(h, rawChild)\n    }\n\n    // ensure a key that is unique to the vnode type and to this transition\n    // component instance. This key will be used to remove pending leaving nodes\n    // during entering.\n    var id = \"__transition-\" + (this._uid) + \"-\";\n    child.key = child.key == null\n      ? child.isComment\n        ? id + 'comment'\n        : id + child.tag\n      : isPrimitive(child.key)\n        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)\n        : child.key;\n\n    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);\n    var oldRawChild = this._vnode;\n    var oldChild = getRealChild(oldRawChild);\n\n    // mark v-show\n    // so that the transition module can hand over the control to the directive\n    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {\n      child.data.show = true;\n    }\n\n    if (\n      oldChild &&\n      oldChild.data &&\n      !isSameChild(child, oldChild) &&\n      !isAsyncPlaceholder(oldChild) &&\n      // #6687 component root is a comment node\n      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)\n    ) {\n      // replace old child transition data with fresh one\n      // important for dynamic transitions!\n      var oldData = oldChild.data.transition = extend({}, data);\n      // handle transition mode\n      if (mode === 'out-in') {\n        // return placeholder node and queue update when leave finishes\n        this._leaving = true;\n        mergeVNodeHook(oldData, 'afterLeave', function () {\n          this$1._leaving = false;\n          this$1.$forceUpdate();\n        });\n        return placeholder(h, rawChild)\n      } else if (mode === 'in-out') {\n        if (isAsyncPlaceholder(child)) {\n          return oldRawChild\n        }\n        var delayedLeave;\n        var performLeave = function () { delayedLeave(); };\n        mergeVNodeHook(data, 'afterEnter', performLeave);\n        mergeVNodeHook(data, 'enterCancelled', performLeave);\n        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });\n      }\n    }\n\n    return rawChild\n  }\n}\n\n/*  */\n\n// Provides transition support for list items.\n// supports move transitions using the FLIP technique.\n\n// Because the vdom's children update algorithm is \"unstable\" - i.e.\n// it doesn't guarantee the relative positioning of removed elements,\n// we force transition-group to update its children into two passes:\n// in the first pass, we remove all nodes that need to be removed,\n// triggering their leaving transition; in the second pass, we insert/move\n// into the final desired state. This way in the second pass removed\n// nodes will remain where they should be.\n\nvar props = extend({\n  tag: String,\n  moveClass: String\n}, transitionProps);\n\ndelete props.mode;\n\nvar TransitionGroup = {\n  props: props,\n\n  render: function render (h) {\n    var tag = this.tag || this.$vnode.data.tag || 'span';\n    var map = Object.create(null);\n    var prevChildren = this.prevChildren = this.children;\n    var rawChildren = this.$slots.default || [];\n    var children = this.children = [];\n    var transitionData = extractTransitionData(this);\n\n    for (var i = 0; i < rawChildren.length; i++) {\n      var c = rawChildren[i];\n      if (c.tag) {\n        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {\n          children.push(c);\n          map[c.key] = c\n          ;(c.data || (c.data = {})).transition = transitionData;\n        } else if (process.env.NODE_ENV !== 'production') {\n          var opts = c.componentOptions;\n          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;\n          warn((\"<transition-group> children must be keyed: <\" + name + \">\"));\n        }\n      }\n    }\n\n    if (prevChildren) {\n      var kept = [];\n      var removed = [];\n      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {\n        var c$1 = prevChildren[i$1];\n        c$1.data.transition = transitionData;\n        c$1.data.pos = c$1.elm.getBoundingClientRect();\n        if (map[c$1.key]) {\n          kept.push(c$1);\n        } else {\n          removed.push(c$1);\n        }\n      }\n      this.kept = h(tag, null, kept);\n      this.removed = removed;\n    }\n\n    return h(tag, null, children)\n  },\n\n  beforeUpdate: function beforeUpdate () {\n    // force removing pass\n    this.__patch__(\n      this._vnode,\n      this.kept,\n      false, // hydrating\n      true // removeOnly (!important, avoids unnecessary moves)\n    );\n    this._vnode = this.kept;\n  },\n\n  updated: function updated () {\n    var children = this.prevChildren;\n    var moveClass = this.moveClass || ((this.name || 'v') + '-move');\n    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {\n      return\n    }\n\n    // we divide the work into three loops to avoid mixing DOM reads and writes\n    // in each iteration - which helps prevent layout thrashing.\n    children.forEach(callPendingCbs);\n    children.forEach(recordPosition);\n    children.forEach(applyTranslation);\n\n    // force reflow to put everything in position\n    // assign to this to avoid being removed in tree-shaking\n    // $flow-disable-line\n    this._reflow = document.body.offsetHeight;\n\n    children.forEach(function (c) {\n      if (c.data.moved) {\n        var el = c.elm;\n        var s = el.style;\n        addTransitionClass(el, moveClass);\n        s.transform = s.WebkitTransform = s.transitionDuration = '';\n        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {\n          if (!e || /transform$/.test(e.propertyName)) {\n            el.removeEventListener(transitionEndEvent, cb);\n            el._moveCb = null;\n            removeTransitionClass(el, moveClass);\n          }\n        });\n      }\n    });\n  },\n\n  methods: {\n    hasMove: function hasMove (el, moveClass) {\n      /* istanbul ignore if */\n      if (!hasTransition) {\n        return false\n      }\n      /* istanbul ignore if */\n      if (this._hasMove) {\n        return this._hasMove\n      }\n      // Detect whether an element with the move class applied has\n      // CSS transitions. Since the element may be inside an entering\n      // transition at this very moment, we make a clone of it and remove\n      // all other transition classes applied to ensure only the move class\n      // is applied.\n      var clone = el.cloneNode();\n      if (el._transitionClasses) {\n        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });\n      }\n      addClass(clone, moveClass);\n      clone.style.display = 'none';\n      this.$el.appendChild(clone);\n      var info = getTransitionInfo(clone);\n      this.$el.removeChild(clone);\n      return (this._hasMove = info.hasTransform)\n    }\n  }\n}\n\nfunction callPendingCbs (c) {\n  /* istanbul ignore if */\n  if (c.elm._moveCb) {\n    c.elm._moveCb();\n  }\n  /* istanbul ignore if */\n  if (c.elm._enterCb) {\n    c.elm._enterCb();\n  }\n}\n\nfunction recordPosition (c) {\n  c.data.newPos = c.elm.getBoundingClientRect();\n}\n\nfunction applyTranslation (c) {\n  var oldPos = c.data.pos;\n  var newPos = c.data.newPos;\n  var dx = oldPos.left - newPos.left;\n  var dy = oldPos.top - newPos.top;\n  if (dx || dy) {\n    c.data.moved = true;\n    var s = c.elm.style;\n    s.transform = s.WebkitTransform = \"translate(\" + dx + \"px,\" + dy + \"px)\";\n    s.transitionDuration = '0s';\n  }\n}\n\nvar platformComponents = {\n  Transition: Transition,\n  TransitionGroup: TransitionGroup\n}\n\n/*  */\n\n// install platform specific utils\nVue.config.mustUseProp = mustUseProp;\nVue.config.isReservedTag = isReservedTag;\nVue.config.isReservedAttr = isReservedAttr;\nVue.config.getTagNamespace = getTagNamespace;\nVue.config.isUnknownElement = isUnknownElement;\n\n// install platform runtime directives & components\nextend(Vue.options.directives, platformDirectives);\nextend(Vue.options.components, platformComponents);\n\n// install platform patch function\nVue.prototype.__patch__ = inBrowser ? patch : noop;\n\n// public mount method\nVue.prototype.$mount = function (\n  el,\n  hydrating\n) {\n  el = el && inBrowser ? query(el) : undefined;\n  return mountComponent(this, el, hydrating)\n};\n\n// devtools global hook\n/* istanbul ignore next */\nif (inBrowser) {\n  setTimeout(function () {\n    if (config.devtools) {\n      if (devtools) {\n        devtools.emit('init', Vue);\n      } else if (\n        process.env.NODE_ENV !== 'production' &&\n        process.env.NODE_ENV !== 'test' &&\n        isChrome\n      ) {\n        console[console.info ? 'info' : 'log'](\n          'Download the Vue Devtools extension for a better development experience:\\n' +\n          '/~https://github.com/vuejs/vue-devtools'\n        );\n      }\n    }\n    if (process.env.NODE_ENV !== 'production' &&\n      process.env.NODE_ENV !== 'test' &&\n      config.productionTip !== false &&\n      typeof console !== 'undefined'\n    ) {\n      console[console.info ? 'info' : 'log'](\n        \"You are running Vue in development mode.\\n\" +\n        \"Make sure to turn on production mode when deploying for production.\\n\" +\n        \"See more tips at https://vuejs.org/guide/deployment.html\"\n      );\n    }\n  }, 0);\n}\n\n/*  */\n\nexport default Vue;\n","/**\n  * vue-router v3.0.1\n  * (c) 2017 Evan You\n  * @license MIT\n  */\n/*  */\n\nfunction assert (condition, message) {\n  if (!condition) {\n    throw new Error((\"[vue-router] \" + message))\n  }\n}\n\nfunction warn (condition, message) {\n  if (process.env.NODE_ENV !== 'production' && !condition) {\n    typeof console !== 'undefined' && console.warn((\"[vue-router] \" + message));\n  }\n}\n\nfunction isError (err) {\n  return Object.prototype.toString.call(err).indexOf('Error') > -1\n}\n\nvar View = {\n  name: 'router-view',\n  functional: true,\n  props: {\n    name: {\n      type: String,\n      default: 'default'\n    }\n  },\n  render: function render (_, ref) {\n    var props = ref.props;\n    var children = ref.children;\n    var parent = ref.parent;\n    var data = ref.data;\n\n    data.routerView = true;\n\n    // directly use parent context's createElement() function\n    // so that components rendered by router-view can resolve named slots\n    var h = parent.$createElement;\n    var name = props.name;\n    var route = parent.$route;\n    var cache = parent._routerViewCache || (parent._routerViewCache = {});\n\n    // determine current view depth, also check to see if the tree\n    // has been toggled inactive but kept-alive.\n    var depth = 0;\n    var inactive = false;\n    while (parent && parent._routerRoot !== parent) {\n      if (parent.$vnode && parent.$vnode.data.routerView) {\n        depth++;\n      }\n      if (parent._inactive) {\n        inactive = true;\n      }\n      parent = parent.$parent;\n    }\n    data.routerViewDepth = depth;\n\n    // render previous view if the tree is inactive and kept-alive\n    if (inactive) {\n      return h(cache[name], data, children)\n    }\n\n    var matched = route.matched[depth];\n    // render empty node if no matched route\n    if (!matched) {\n      cache[name] = null;\n      return h()\n    }\n\n    var component = cache[name] = matched.components[name];\n\n    // attach instance registration hook\n    // this will be called in the instance's injected lifecycle hooks\n    data.registerRouteInstance = function (vm, val) {\n      // val could be undefined for unregistration\n      var current = matched.instances[name];\n      if (\n        (val && current !== vm) ||\n        (!val && current === vm)\n      ) {\n        matched.instances[name] = val;\n      }\n    }\n\n    // also register instance in prepatch hook\n    // in case the same component instance is reused across different routes\n    ;(data.hook || (data.hook = {})).prepatch = function (_, vnode) {\n      matched.instances[name] = vnode.componentInstance;\n    };\n\n    // resolve props\n    var propsToPass = data.props = resolveProps(route, matched.props && matched.props[name]);\n    if (propsToPass) {\n      // clone to prevent mutation\n      propsToPass = data.props = extend({}, propsToPass);\n      // pass non-declared props as attrs\n      var attrs = data.attrs = data.attrs || {};\n      for (var key in propsToPass) {\n        if (!component.props || !(key in component.props)) {\n          attrs[key] = propsToPass[key];\n          delete propsToPass[key];\n        }\n      }\n    }\n\n    return h(component, data, children)\n  }\n};\n\nfunction resolveProps (route, config) {\n  switch (typeof config) {\n    case 'undefined':\n      return\n    case 'object':\n      return config\n    case 'function':\n      return config(route)\n    case 'boolean':\n      return config ? route.params : undefined\n    default:\n      if (process.env.NODE_ENV !== 'production') {\n        warn(\n          false,\n          \"props in \\\"\" + (route.path) + \"\\\" is a \" + (typeof config) + \", \" +\n          \"expecting an object, function or boolean.\"\n        );\n      }\n  }\n}\n\nfunction extend (to, from) {\n  for (var key in from) {\n    to[key] = from[key];\n  }\n  return to\n}\n\n/*  */\n\nvar encodeReserveRE = /[!'()*]/g;\nvar encodeReserveReplacer = function (c) { return '%' + c.charCodeAt(0).toString(16); };\nvar commaRE = /%2C/g;\n\n// fixed encodeURIComponent which is more conformant to RFC3986:\n// - escapes [!'()*]\n// - preserve commas\nvar encode = function (str) { return encodeURIComponent(str)\n  .replace(encodeReserveRE, encodeReserveReplacer)\n  .replace(commaRE, ','); };\n\nvar decode = decodeURIComponent;\n\nfunction resolveQuery (\n  query,\n  extraQuery,\n  _parseQuery\n) {\n  if ( extraQuery === void 0 ) extraQuery = {};\n\n  var parse = _parseQuery || parseQuery;\n  var parsedQuery;\n  try {\n    parsedQuery = parse(query || '');\n  } catch (e) {\n    process.env.NODE_ENV !== 'production' && warn(false, e.message);\n    parsedQuery = {};\n  }\n  for (var key in extraQuery) {\n    parsedQuery[key] = extraQuery[key];\n  }\n  return parsedQuery\n}\n\nfunction parseQuery (query) {\n  var res = {};\n\n  query = query.trim().replace(/^(\\?|#|&)/, '');\n\n  if (!query) {\n    return res\n  }\n\n  query.split('&').forEach(function (param) {\n    var parts = param.replace(/\\+/g, ' ').split('=');\n    var key = decode(parts.shift());\n    var val = parts.length > 0\n      ? decode(parts.join('='))\n      : null;\n\n    if (res[key] === undefined) {\n      res[key] = val;\n    } else if (Array.isArray(res[key])) {\n      res[key].push(val);\n    } else {\n      res[key] = [res[key], val];\n    }\n  });\n\n  return res\n}\n\nfunction stringifyQuery (obj) {\n  var res = obj ? Object.keys(obj).map(function (key) {\n    var val = obj[key];\n\n    if (val === undefined) {\n      return ''\n    }\n\n    if (val === null) {\n      return encode(key)\n    }\n\n    if (Array.isArray(val)) {\n      var result = [];\n      val.forEach(function (val2) {\n        if (val2 === undefined) {\n          return\n        }\n        if (val2 === null) {\n          result.push(encode(key));\n        } else {\n          result.push(encode(key) + '=' + encode(val2));\n        }\n      });\n      return result.join('&')\n    }\n\n    return encode(key) + '=' + encode(val)\n  }).filter(function (x) { return x.length > 0; }).join('&') : null;\n  return res ? (\"?\" + res) : ''\n}\n\n/*  */\n\n\nvar trailingSlashRE = /\\/?$/;\n\nfunction createRoute (\n  record,\n  location,\n  redirectedFrom,\n  router\n) {\n  var stringifyQuery$$1 = router && router.options.stringifyQuery;\n\n  var query = location.query || {};\n  try {\n    query = clone(query);\n  } catch (e) {}\n\n  var route = {\n    name: location.name || (record && record.name),\n    meta: (record && record.meta) || {},\n    path: location.path || '/',\n    hash: location.hash || '',\n    query: query,\n    params: location.params || {},\n    fullPath: getFullPath(location, stringifyQuery$$1),\n    matched: record ? formatMatch(record) : []\n  };\n  if (redirectedFrom) {\n    route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery$$1);\n  }\n  return Object.freeze(route)\n}\n\nfunction clone (value) {\n  if (Array.isArray(value)) {\n    return value.map(clone)\n  } else if (value && typeof value === 'object') {\n    var res = {};\n    for (var key in value) {\n      res[key] = clone(value[key]);\n    }\n    return res\n  } else {\n    return value\n  }\n}\n\n// the starting route that represents the initial state\nvar START = createRoute(null, {\n  path: '/'\n});\n\nfunction formatMatch (record) {\n  var res = [];\n  while (record) {\n    res.unshift(record);\n    record = record.parent;\n  }\n  return res\n}\n\nfunction getFullPath (\n  ref,\n  _stringifyQuery\n) {\n  var path = ref.path;\n  var query = ref.query; if ( query === void 0 ) query = {};\n  var hash = ref.hash; if ( hash === void 0 ) hash = '';\n\n  var stringify = _stringifyQuery || stringifyQuery;\n  return (path || '/') + stringify(query) + hash\n}\n\nfunction isSameRoute (a, b) {\n  if (b === START) {\n    return a === b\n  } else if (!b) {\n    return false\n  } else if (a.path && b.path) {\n    return (\n      a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') &&\n      a.hash === b.hash &&\n      isObjectEqual(a.query, b.query)\n    )\n  } else if (a.name && b.name) {\n    return (\n      a.name === b.name &&\n      a.hash === b.hash &&\n      isObjectEqual(a.query, b.query) &&\n      isObjectEqual(a.params, b.params)\n    )\n  } else {\n    return false\n  }\n}\n\nfunction isObjectEqual (a, b) {\n  if ( a === void 0 ) a = {};\n  if ( b === void 0 ) b = {};\n\n  // handle null value #1566\n  if (!a || !b) { return a === b }\n  var aKeys = Object.keys(a);\n  var bKeys = Object.keys(b);\n  if (aKeys.length !== bKeys.length) {\n    return false\n  }\n  return aKeys.every(function (key) {\n    var aVal = a[key];\n    var bVal = b[key];\n    // check nested equality\n    if (typeof aVal === 'object' && typeof bVal === 'object') {\n      return isObjectEqual(aVal, bVal)\n    }\n    return String(aVal) === String(bVal)\n  })\n}\n\nfunction isIncludedRoute (current, target) {\n  return (\n    current.path.replace(trailingSlashRE, '/').indexOf(\n      target.path.replace(trailingSlashRE, '/')\n    ) === 0 &&\n    (!target.hash || current.hash === target.hash) &&\n    queryIncludes(current.query, target.query)\n  )\n}\n\nfunction queryIncludes (current, target) {\n  for (var key in target) {\n    if (!(key in current)) {\n      return false\n    }\n  }\n  return true\n}\n\n/*  */\n\n// work around weird flow bug\nvar toTypes = [String, Object];\nvar eventTypes = [String, Array];\n\nvar Link = {\n  name: 'router-link',\n  props: {\n    to: {\n      type: toTypes,\n      required: true\n    },\n    tag: {\n      type: String,\n      default: 'a'\n    },\n    exact: Boolean,\n    append: Boolean,\n    replace: Boolean,\n    activeClass: String,\n    exactActiveClass: String,\n    event: {\n      type: eventTypes,\n      default: 'click'\n    }\n  },\n  render: function render (h) {\n    var this$1 = this;\n\n    var router = this.$router;\n    var current = this.$route;\n    var ref = router.resolve(this.to, current, this.append);\n    var location = ref.location;\n    var route = ref.route;\n    var href = ref.href;\n\n    var classes = {};\n    var globalActiveClass = router.options.linkActiveClass;\n    var globalExactActiveClass = router.options.linkExactActiveClass;\n    // Support global empty active class\n    var activeClassFallback = globalActiveClass == null\n            ? 'router-link-active'\n            : globalActiveClass;\n    var exactActiveClassFallback = globalExactActiveClass == null\n            ? 'router-link-exact-active'\n            : globalExactActiveClass;\n    var activeClass = this.activeClass == null\n            ? activeClassFallback\n            : this.activeClass;\n    var exactActiveClass = this.exactActiveClass == null\n            ? exactActiveClassFallback\n            : this.exactActiveClass;\n    var compareTarget = location.path\n      ? createRoute(null, location, null, router)\n      : route;\n\n    classes[exactActiveClass] = isSameRoute(current, compareTarget);\n    classes[activeClass] = this.exact\n      ? classes[exactActiveClass]\n      : isIncludedRoute(current, compareTarget);\n\n    var handler = function (e) {\n      if (guardEvent(e)) {\n        if (this$1.replace) {\n          router.replace(location);\n        } else {\n          router.push(location);\n        }\n      }\n    };\n\n    var on = { click: guardEvent };\n    if (Array.isArray(this.event)) {\n      this.event.forEach(function (e) { on[e] = handler; });\n    } else {\n      on[this.event] = handler;\n    }\n\n    var data = {\n      class: classes\n    };\n\n    if (this.tag === 'a') {\n      data.on = on;\n      data.attrs = { href: href };\n    } else {\n      // find the first <a> child and apply listener and href\n      var a = findAnchor(this.$slots.default);\n      if (a) {\n        // in case the <a> is a static node\n        a.isStatic = false;\n        var extend = _Vue.util.extend;\n        var aData = a.data = extend({}, a.data);\n        aData.on = on;\n        var aAttrs = a.data.attrs = extend({}, a.data.attrs);\n        aAttrs.href = href;\n      } else {\n        // doesn't have <a> child, apply listener to self\n        data.on = on;\n      }\n    }\n\n    return h(this.tag, data, this.$slots.default)\n  }\n};\n\nfunction guardEvent (e) {\n  // don't redirect with control keys\n  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) { return }\n  // don't redirect when preventDefault called\n  if (e.defaultPrevented) { return }\n  // don't redirect on right click\n  if (e.button !== undefined && e.button !== 0) { return }\n  // don't redirect if `target=\"_blank\"`\n  if (e.currentTarget && e.currentTarget.getAttribute) {\n    var target = e.currentTarget.getAttribute('target');\n    if (/\\b_blank\\b/i.test(target)) { return }\n  }\n  // this may be a Weex event which doesn't have this method\n  if (e.preventDefault) {\n    e.preventDefault();\n  }\n  return true\n}\n\nfunction findAnchor (children) {\n  if (children) {\n    var child;\n    for (var i = 0; i < children.length; i++) {\n      child = children[i];\n      if (child.tag === 'a') {\n        return child\n      }\n      if (child.children && (child = findAnchor(child.children))) {\n        return child\n      }\n    }\n  }\n}\n\nvar _Vue;\n\nfunction install (Vue) {\n  if (install.installed && _Vue === Vue) { return }\n  install.installed = true;\n\n  _Vue = Vue;\n\n  var isDef = function (v) { return v !== undefined; };\n\n  var registerInstance = function (vm, callVal) {\n    var i = vm.$options._parentVnode;\n    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {\n      i(vm, callVal);\n    }\n  };\n\n  Vue.mixin({\n    beforeCreate: function beforeCreate () {\n      if (isDef(this.$options.router)) {\n        this._routerRoot = this;\n        this._router = this.$options.router;\n        this._router.init(this);\n        Vue.util.defineReactive(this, '_route', this._router.history.current);\n      } else {\n        this._routerRoot = (this.$parent && this.$parent._routerRoot) || this;\n      }\n      registerInstance(this, this);\n    },\n    destroyed: function destroyed () {\n      registerInstance(this);\n    }\n  });\n\n  Object.defineProperty(Vue.prototype, '$router', {\n    get: function get () { return this._routerRoot._router }\n  });\n\n  Object.defineProperty(Vue.prototype, '$route', {\n    get: function get () { return this._routerRoot._route }\n  });\n\n  Vue.component('router-view', View);\n  Vue.component('router-link', Link);\n\n  var strats = Vue.config.optionMergeStrategies;\n  // use the same hook merging strategy for route hooks\n  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created;\n}\n\n/*  */\n\nvar inBrowser = typeof window !== 'undefined';\n\n/*  */\n\nfunction resolvePath (\n  relative,\n  base,\n  append\n) {\n  var firstChar = relative.charAt(0);\n  if (firstChar === '/') {\n    return relative\n  }\n\n  if (firstChar === '?' || firstChar === '#') {\n    return base + relative\n  }\n\n  var stack = base.split('/');\n\n  // remove trailing segment if:\n  // - not appending\n  // - appending to trailing slash (last segment is empty)\n  if (!append || !stack[stack.length - 1]) {\n    stack.pop();\n  }\n\n  // resolve relative path\n  var segments = relative.replace(/^\\//, '').split('/');\n  for (var i = 0; i < segments.length; i++) {\n    var segment = segments[i];\n    if (segment === '..') {\n      stack.pop();\n    } else if (segment !== '.') {\n      stack.push(segment);\n    }\n  }\n\n  // ensure leading slash\n  if (stack[0] !== '') {\n    stack.unshift('');\n  }\n\n  return stack.join('/')\n}\n\nfunction parsePath (path) {\n  var hash = '';\n  var query = '';\n\n  var hashIndex = path.indexOf('#');\n  if (hashIndex >= 0) {\n    hash = path.slice(hashIndex);\n    path = path.slice(0, hashIndex);\n  }\n\n  var queryIndex = path.indexOf('?');\n  if (queryIndex >= 0) {\n    query = path.slice(queryIndex + 1);\n    path = path.slice(0, queryIndex);\n  }\n\n  return {\n    path: path,\n    query: query,\n    hash: hash\n  }\n}\n\nfunction cleanPath (path) {\n  return path.replace(/\\/\\//g, '/')\n}\n\nvar isarray = Array.isArray || function (arr) {\n  return Object.prototype.toString.call(arr) == '[object Array]';\n};\n\n/**\n * Expose `pathToRegexp`.\n */\nvar pathToRegexp_1 = pathToRegexp;\nvar parse_1 = parse;\nvar compile_1 = compile;\nvar tokensToFunction_1 = tokensToFunction;\nvar tokensToRegExp_1 = tokensToRegExp;\n\n/**\n * The main path matching regexp utility.\n *\n * @type {RegExp}\n */\nvar PATH_REGEXP = new RegExp([\n  // Match escaped characters that would otherwise appear in future matches.\n  // This allows the user to escape special characters that won't transform.\n  '(\\\\\\\\.)',\n  // Match Express-style parameters and un-named parameters with a prefix\n  // and optional suffixes. Matches appear as:\n  //\n  // \"/:test(\\\\d+)?\" => [\"/\", \"test\", \"\\d+\", undefined, \"?\", undefined]\n  // \"/route(\\\\d+)\"  => [undefined, undefined, undefined, \"\\d+\", undefined, undefined]\n  // \"/*\"            => [\"/\", undefined, undefined, undefined, undefined, \"*\"]\n  '([\\\\/.])?(?:(?:\\\\:(\\\\w+)(?:\\\\(((?:\\\\\\\\.|[^\\\\\\\\()])+)\\\\))?|\\\\(((?:\\\\\\\\.|[^\\\\\\\\()])+)\\\\))([+*?])?|(\\\\*))'\n].join('|'), 'g');\n\n/**\n * Parse a string for the raw tokens.\n *\n * @param  {string}  str\n * @param  {Object=} options\n * @return {!Array}\n */\nfunction parse (str, options) {\n  var tokens = [];\n  var key = 0;\n  var index = 0;\n  var path = '';\n  var defaultDelimiter = options && options.delimiter || '/';\n  var res;\n\n  while ((res = PATH_REGEXP.exec(str)) != null) {\n    var m = res[0];\n    var escaped = res[1];\n    var offset = res.index;\n    path += str.slice(index, offset);\n    index = offset + m.length;\n\n    // Ignore already escaped sequences.\n    if (escaped) {\n      path += escaped[1];\n      continue\n    }\n\n    var next = str[index];\n    var prefix = res[2];\n    var name = res[3];\n    var capture = res[4];\n    var group = res[5];\n    var modifier = res[6];\n    var asterisk = res[7];\n\n    // Push the current path onto the tokens.\n    if (path) {\n      tokens.push(path);\n      path = '';\n    }\n\n    var partial = prefix != null && next != null && next !== prefix;\n    var repeat = modifier === '+' || modifier === '*';\n    var optional = modifier === '?' || modifier === '*';\n    var delimiter = res[2] || defaultDelimiter;\n    var pattern = capture || group;\n\n    tokens.push({\n      name: name || key++,\n      prefix: prefix || '',\n      delimiter: delimiter,\n      optional: optional,\n      repeat: repeat,\n      partial: partial,\n      asterisk: !!asterisk,\n      pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')\n    });\n  }\n\n  // Match any characters still remaining.\n  if (index < str.length) {\n    path += str.substr(index);\n  }\n\n  // If the path exists, push it onto the end.\n  if (path) {\n    tokens.push(path);\n  }\n\n  return tokens\n}\n\n/**\n * Compile a string to a template function for the path.\n *\n * @param  {string}             str\n * @param  {Object=}            options\n * @return {!function(Object=, Object=)}\n */\nfunction compile (str, options) {\n  return tokensToFunction(parse(str, options))\n}\n\n/**\n * Prettier encoding of URI path segments.\n *\n * @param  {string}\n * @return {string}\n */\nfunction encodeURIComponentPretty (str) {\n  return encodeURI(str).replace(/[\\/?#]/g, function (c) {\n    return '%' + c.charCodeAt(0).toString(16).toUpperCase()\n  })\n}\n\n/**\n * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.\n *\n * @param  {string}\n * @return {string}\n */\nfunction encodeAsterisk (str) {\n  return encodeURI(str).replace(/[?#]/g, function (c) {\n    return '%' + c.charCodeAt(0).toString(16).toUpperCase()\n  })\n}\n\n/**\n * Expose a method for transforming tokens into the path function.\n */\nfunction tokensToFunction (tokens) {\n  // Compile all the tokens into regexps.\n  var matches = new Array(tokens.length);\n\n  // Compile all the patterns before compilation.\n  for (var i = 0; i < tokens.length; i++) {\n    if (typeof tokens[i] === 'object') {\n      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$');\n    }\n  }\n\n  return function (obj, opts) {\n    var path = '';\n    var data = obj || {};\n    var options = opts || {};\n    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;\n\n    for (var i = 0; i < tokens.length; i++) {\n      var token = tokens[i];\n\n      if (typeof token === 'string') {\n        path += token;\n\n        continue\n      }\n\n      var value = data[token.name];\n      var segment;\n\n      if (value == null) {\n        if (token.optional) {\n          // Prepend partial segment prefixes.\n          if (token.partial) {\n            path += token.prefix;\n          }\n\n          continue\n        } else {\n          throw new TypeError('Expected \"' + token.name + '\" to be defined')\n        }\n      }\n\n      if (isarray(value)) {\n        if (!token.repeat) {\n          throw new TypeError('Expected \"' + token.name + '\" to not repeat, but received `' + JSON.stringify(value) + '`')\n        }\n\n        if (value.length === 0) {\n          if (token.optional) {\n            continue\n          } else {\n            throw new TypeError('Expected \"' + token.name + '\" to not be empty')\n          }\n        }\n\n        for (var j = 0; j < value.length; j++) {\n          segment = encode(value[j]);\n\n          if (!matches[i].test(segment)) {\n            throw new TypeError('Expected all \"' + token.name + '\" to match \"' + token.pattern + '\", but received `' + JSON.stringify(segment) + '`')\n          }\n\n          path += (j === 0 ? token.prefix : token.delimiter) + segment;\n        }\n\n        continue\n      }\n\n      segment = token.asterisk ? encodeAsterisk(value) : encode(value);\n\n      if (!matches[i].test(segment)) {\n        throw new TypeError('Expected \"' + token.name + '\" to match \"' + token.pattern + '\", but received \"' + segment + '\"')\n      }\n\n      path += token.prefix + segment;\n    }\n\n    return path\n  }\n}\n\n/**\n * Escape a regular expression string.\n *\n * @param  {string} str\n * @return {string}\n */\nfunction escapeString (str) {\n  return str.replace(/([.+*?=^!:${}()[\\]|\\/\\\\])/g, '\\\\$1')\n}\n\n/**\n * Escape the capturing group by escaping special characters and meaning.\n *\n * @param  {string} group\n * @return {string}\n */\nfunction escapeGroup (group) {\n  return group.replace(/([=!:$\\/()])/g, '\\\\$1')\n}\n\n/**\n * Attach the keys as a property of the regexp.\n *\n * @param  {!RegExp} re\n * @param  {Array}   keys\n * @return {!RegExp}\n */\nfunction attachKeys (re, keys) {\n  re.keys = keys;\n  return re\n}\n\n/**\n * Get the flags for a regexp from the options.\n *\n * @param  {Object} options\n * @return {string}\n */\nfunction flags (options) {\n  return options.sensitive ? '' : 'i'\n}\n\n/**\n * Pull out keys from a regexp.\n *\n * @param  {!RegExp} path\n * @param  {!Array}  keys\n * @return {!RegExp}\n */\nfunction regexpToRegexp (path, keys) {\n  // Use a negative lookahead to match only capturing groups.\n  var groups = path.source.match(/\\((?!\\?)/g);\n\n  if (groups) {\n    for (var i = 0; i < groups.length; i++) {\n      keys.push({\n        name: i,\n        prefix: null,\n        delimiter: null,\n        optional: false,\n        repeat: false,\n        partial: false,\n        asterisk: false,\n        pattern: null\n      });\n    }\n  }\n\n  return attachKeys(path, keys)\n}\n\n/**\n * Transform an array into a regexp.\n *\n * @param  {!Array}  path\n * @param  {Array}   keys\n * @param  {!Object} options\n * @return {!RegExp}\n */\nfunction arrayToRegexp (path, keys, options) {\n  var parts = [];\n\n  for (var i = 0; i < path.length; i++) {\n    parts.push(pathToRegexp(path[i], keys, options).source);\n  }\n\n  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));\n\n  return attachKeys(regexp, keys)\n}\n\n/**\n * Create a path regexp from string input.\n *\n * @param  {string}  path\n * @param  {!Array}  keys\n * @param  {!Object} options\n * @return {!RegExp}\n */\nfunction stringToRegexp (path, keys, options) {\n  return tokensToRegExp(parse(path, options), keys, options)\n}\n\n/**\n * Expose a function for taking tokens and returning a RegExp.\n *\n * @param  {!Array}          tokens\n * @param  {(Array|Object)=} keys\n * @param  {Object=}         options\n * @return {!RegExp}\n */\nfunction tokensToRegExp (tokens, keys, options) {\n  if (!isarray(keys)) {\n    options = /** @type {!Object} */ (keys || options);\n    keys = [];\n  }\n\n  options = options || {};\n\n  var strict = options.strict;\n  var end = options.end !== false;\n  var route = '';\n\n  // Iterate over the tokens and create our regexp string.\n  for (var i = 0; i < tokens.length; i++) {\n    var token = tokens[i];\n\n    if (typeof token === 'string') {\n      route += escapeString(token);\n    } else {\n      var prefix = escapeString(token.prefix);\n      var capture = '(?:' + token.pattern + ')';\n\n      keys.push(token);\n\n      if (token.repeat) {\n        capture += '(?:' + prefix + capture + ')*';\n      }\n\n      if (token.optional) {\n        if (!token.partial) {\n          capture = '(?:' + prefix + '(' + capture + '))?';\n        } else {\n          capture = prefix + '(' + capture + ')?';\n        }\n      } else {\n        capture = prefix + '(' + capture + ')';\n      }\n\n      route += capture;\n    }\n  }\n\n  var delimiter = escapeString(options.delimiter || '/');\n  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter;\n\n  // In non-strict mode we allow a slash at the end of match. If the path to\n  // match already ends with a slash, we remove it for consistency. The slash\n  // is valid at the end of a path match, not in the middle. This is important\n  // in non-ending mode, where \"/test/\" shouldn't match \"/test//route\".\n  if (!strict) {\n    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';\n  }\n\n  if (end) {\n    route += '$';\n  } else {\n    // In non-ending mode, we need the capturing groups to match as much as\n    // possible by using a positive lookahead to the end or next path segment.\n    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';\n  }\n\n  return attachKeys(new RegExp('^' + route, flags(options)), keys)\n}\n\n/**\n * Normalize the given path string, returning a regular expression.\n *\n * An empty array can be passed in for the keys, which will hold the\n * placeholder key descriptions. For example, using `/user/:id`, `keys` will\n * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.\n *\n * @param  {(string|RegExp|Array)} path\n * @param  {(Array|Object)=}       keys\n * @param  {Object=}               options\n * @return {!RegExp}\n */\nfunction pathToRegexp (path, keys, options) {\n  if (!isarray(keys)) {\n    options = /** @type {!Object} */ (keys || options);\n    keys = [];\n  }\n\n  options = options || {};\n\n  if (path instanceof RegExp) {\n    return regexpToRegexp(path, /** @type {!Array} */ (keys))\n  }\n\n  if (isarray(path)) {\n    return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)\n  }\n\n  return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)\n}\n\npathToRegexp_1.parse = parse_1;\npathToRegexp_1.compile = compile_1;\npathToRegexp_1.tokensToFunction = tokensToFunction_1;\npathToRegexp_1.tokensToRegExp = tokensToRegExp_1;\n\n/*  */\n\n// $flow-disable-line\nvar regexpCompileCache = Object.create(null);\n\nfunction fillParams (\n  path,\n  params,\n  routeMsg\n) {\n  try {\n    var filler =\n      regexpCompileCache[path] ||\n      (regexpCompileCache[path] = pathToRegexp_1.compile(path));\n    return filler(params || {}, { pretty: true })\n  } catch (e) {\n    if (process.env.NODE_ENV !== 'production') {\n      warn(false, (\"missing param for \" + routeMsg + \": \" + (e.message)));\n    }\n    return ''\n  }\n}\n\n/*  */\n\nfunction createRouteMap (\n  routes,\n  oldPathList,\n  oldPathMap,\n  oldNameMap\n) {\n  // the path list is used to control path matching priority\n  var pathList = oldPathList || [];\n  // $flow-disable-line\n  var pathMap = oldPathMap || Object.create(null);\n  // $flow-disable-line\n  var nameMap = oldNameMap || Object.create(null);\n\n  routes.forEach(function (route) {\n    addRouteRecord(pathList, pathMap, nameMap, route);\n  });\n\n  // ensure wildcard routes are always at the end\n  for (var i = 0, l = pathList.length; i < l; i++) {\n    if (pathList[i] === '*') {\n      pathList.push(pathList.splice(i, 1)[0]);\n      l--;\n      i--;\n    }\n  }\n\n  return {\n    pathList: pathList,\n    pathMap: pathMap,\n    nameMap: nameMap\n  }\n}\n\nfunction addRouteRecord (\n  pathList,\n  pathMap,\n  nameMap,\n  route,\n  parent,\n  matchAs\n) {\n  var path = route.path;\n  var name = route.name;\n  if (process.env.NODE_ENV !== 'production') {\n    assert(path != null, \"\\\"path\\\" is required in a route configuration.\");\n    assert(\n      typeof route.component !== 'string',\n      \"route config \\\"component\\\" for path: \" + (String(path || name)) + \" cannot be a \" +\n      \"string id. Use an actual component instead.\"\n    );\n  }\n\n  var pathToRegexpOptions = route.pathToRegexpOptions || {};\n  var normalizedPath = normalizePath(\n    path,\n    parent,\n    pathToRegexpOptions.strict\n  );\n\n  if (typeof route.caseSensitive === 'boolean') {\n    pathToRegexpOptions.sensitive = route.caseSensitive;\n  }\n\n  var record = {\n    path: normalizedPath,\n    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),\n    components: route.components || { default: route.component },\n    instances: {},\n    name: name,\n    parent: parent,\n    matchAs: matchAs,\n    redirect: route.redirect,\n    beforeEnter: route.beforeEnter,\n    meta: route.meta || {},\n    props: route.props == null\n      ? {}\n      : route.components\n        ? route.props\n        : { default: route.props }\n  };\n\n  if (route.children) {\n    // Warn if route is named, does not redirect and has a default child route.\n    // If users navigate to this route by name, the default child will\n    // not be rendered (GH Issue #629)\n    if (process.env.NODE_ENV !== 'production') {\n      if (route.name && !route.redirect && route.children.some(function (child) { return /^\\/?$/.test(child.path); })) {\n        warn(\n          false,\n          \"Named Route '\" + (route.name) + \"' has a default child route. \" +\n          \"When navigating to this named route (:to=\\\"{name: '\" + (route.name) + \"'\\\"), \" +\n          \"the default child route will not be rendered. Remove the name from \" +\n          \"this route and use the name of the default child route for named \" +\n          \"links instead.\"\n        );\n      }\n    }\n    route.children.forEach(function (child) {\n      var childMatchAs = matchAs\n        ? cleanPath((matchAs + \"/\" + (child.path)))\n        : undefined;\n      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);\n    });\n  }\n\n  if (route.alias !== undefined) {\n    var aliases = Array.isArray(route.alias)\n      ? route.alias\n      : [route.alias];\n\n    aliases.forEach(function (alias) {\n      var aliasRoute = {\n        path: alias,\n        children: route.children\n      };\n      addRouteRecord(\n        pathList,\n        pathMap,\n        nameMap,\n        aliasRoute,\n        parent,\n        record.path || '/' // matchAs\n      );\n    });\n  }\n\n  if (!pathMap[record.path]) {\n    pathList.push(record.path);\n    pathMap[record.path] = record;\n  }\n\n  if (name) {\n    if (!nameMap[name]) {\n      nameMap[name] = record;\n    } else if (process.env.NODE_ENV !== 'production' && !matchAs) {\n      warn(\n        false,\n        \"Duplicate named routes definition: \" +\n        \"{ name: \\\"\" + name + \"\\\", path: \\\"\" + (record.path) + \"\\\" }\"\n      );\n    }\n  }\n}\n\nfunction compileRouteRegex (path, pathToRegexpOptions) {\n  var regex = pathToRegexp_1(path, [], pathToRegexpOptions);\n  if (process.env.NODE_ENV !== 'production') {\n    var keys = Object.create(null);\n    regex.keys.forEach(function (key) {\n      warn(!keys[key.name], (\"Duplicate param keys in route with path: \\\"\" + path + \"\\\"\"));\n      keys[key.name] = true;\n    });\n  }\n  return regex\n}\n\nfunction normalizePath (path, parent, strict) {\n  if (!strict) { path = path.replace(/\\/$/, ''); }\n  if (path[0] === '/') { return path }\n  if (parent == null) { return path }\n  return cleanPath(((parent.path) + \"/\" + path))\n}\n\n/*  */\n\n\nfunction normalizeLocation (\n  raw,\n  current,\n  append,\n  router\n) {\n  var next = typeof raw === 'string' ? { path: raw } : raw;\n  // named target\n  if (next.name || next._normalized) {\n    return next\n  }\n\n  // relative params\n  if (!next.path && next.params && current) {\n    next = assign({}, next);\n    next._normalized = true;\n    var params = assign(assign({}, current.params), next.params);\n    if (current.name) {\n      next.name = current.name;\n      next.params = params;\n    } else if (current.matched.length) {\n      var rawPath = current.matched[current.matched.length - 1].path;\n      next.path = fillParams(rawPath, params, (\"path \" + (current.path)));\n    } else if (process.env.NODE_ENV !== 'production') {\n      warn(false, \"relative params navigation requires a current route.\");\n    }\n    return next\n  }\n\n  var parsedPath = parsePath(next.path || '');\n  var basePath = (current && current.path) || '/';\n  var path = parsedPath.path\n    ? resolvePath(parsedPath.path, basePath, append || next.append)\n    : basePath;\n\n  var query = resolveQuery(\n    parsedPath.query,\n    next.query,\n    router && router.options.parseQuery\n  );\n\n  var hash = next.hash || parsedPath.hash;\n  if (hash && hash.charAt(0) !== '#') {\n    hash = \"#\" + hash;\n  }\n\n  return {\n    _normalized: true,\n    path: path,\n    query: query,\n    hash: hash\n  }\n}\n\nfunction assign (a, b) {\n  for (var key in b) {\n    a[key] = b[key];\n  }\n  return a\n}\n\n/*  */\n\n\nfunction createMatcher (\n  routes,\n  router\n) {\n  var ref = createRouteMap(routes);\n  var pathList = ref.pathList;\n  var pathMap = ref.pathMap;\n  var nameMap = ref.nameMap;\n\n  function addRoutes (routes) {\n    createRouteMap(routes, pathList, pathMap, nameMap);\n  }\n\n  function match (\n    raw,\n    currentRoute,\n    redirectedFrom\n  ) {\n    var location = normalizeLocation(raw, currentRoute, false, router);\n    var name = location.name;\n\n    if (name) {\n      var record = nameMap[name];\n      if (process.env.NODE_ENV !== 'production') {\n        warn(record, (\"Route with name '\" + name + \"' does not exist\"));\n      }\n      if (!record) { return _createRoute(null, location) }\n      var paramNames = record.regex.keys\n        .filter(function (key) { return !key.optional; })\n        .map(function (key) { return key.name; });\n\n      if (typeof location.params !== 'object') {\n        location.params = {};\n      }\n\n      if (currentRoute && typeof currentRoute.params === 'object') {\n        for (var key in currentRoute.params) {\n          if (!(key in location.params) && paramNames.indexOf(key) > -1) {\n            location.params[key] = currentRoute.params[key];\n          }\n        }\n      }\n\n      if (record) {\n        location.path = fillParams(record.path, location.params, (\"named route \\\"\" + name + \"\\\"\"));\n        return _createRoute(record, location, redirectedFrom)\n      }\n    } else if (location.path) {\n      location.params = {};\n      for (var i = 0; i < pathList.length; i++) {\n        var path = pathList[i];\n        var record$1 = pathMap[path];\n        if (matchRoute(record$1.regex, location.path, location.params)) {\n          return _createRoute(record$1, location, redirectedFrom)\n        }\n      }\n    }\n    // no match\n    return _createRoute(null, location)\n  }\n\n  function redirect (\n    record,\n    location\n  ) {\n    var originalRedirect = record.redirect;\n    var redirect = typeof originalRedirect === 'function'\n        ? originalRedirect(createRoute(record, location, null, router))\n        : originalRedirect;\n\n    if (typeof redirect === 'string') {\n      redirect = { path: redirect };\n    }\n\n    if (!redirect || typeof redirect !== 'object') {\n      if (process.env.NODE_ENV !== 'production') {\n        warn(\n          false, (\"invalid redirect option: \" + (JSON.stringify(redirect)))\n        );\n      }\n      return _createRoute(null, location)\n    }\n\n    var re = redirect;\n    var name = re.name;\n    var path = re.path;\n    var query = location.query;\n    var hash = location.hash;\n    var params = location.params;\n    query = re.hasOwnProperty('query') ? re.query : query;\n    hash = re.hasOwnProperty('hash') ? re.hash : hash;\n    params = re.hasOwnProperty('params') ? re.params : params;\n\n    if (name) {\n      // resolved named direct\n      var targetRecord = nameMap[name];\n      if (process.env.NODE_ENV !== 'production') {\n        assert(targetRecord, (\"redirect failed: named route \\\"\" + name + \"\\\" not found.\"));\n      }\n      return match({\n        _normalized: true,\n        name: name,\n        query: query,\n        hash: hash,\n        params: params\n      }, undefined, location)\n    } else if (path) {\n      // 1. resolve relative redirect\n      var rawPath = resolveRecordPath(path, record);\n      // 2. resolve params\n      var resolvedPath = fillParams(rawPath, params, (\"redirect route with path \\\"\" + rawPath + \"\\\"\"));\n      // 3. rematch with existing query and hash\n      return match({\n        _normalized: true,\n        path: resolvedPath,\n        query: query,\n        hash: hash\n      }, undefined, location)\n    } else {\n      if (process.env.NODE_ENV !== 'production') {\n        warn(false, (\"invalid redirect option: \" + (JSON.stringify(redirect))));\n      }\n      return _createRoute(null, location)\n    }\n  }\n\n  function alias (\n    record,\n    location,\n    matchAs\n  ) {\n    var aliasedPath = fillParams(matchAs, location.params, (\"aliased route with path \\\"\" + matchAs + \"\\\"\"));\n    var aliasedMatch = match({\n      _normalized: true,\n      path: aliasedPath\n    });\n    if (aliasedMatch) {\n      var matched = aliasedMatch.matched;\n      var aliasedRecord = matched[matched.length - 1];\n      location.params = aliasedMatch.params;\n      return _createRoute(aliasedRecord, location)\n    }\n    return _createRoute(null, location)\n  }\n\n  function _createRoute (\n    record,\n    location,\n    redirectedFrom\n  ) {\n    if (record && record.redirect) {\n      return redirect(record, redirectedFrom || location)\n    }\n    if (record && record.matchAs) {\n      return alias(record, location, record.matchAs)\n    }\n    return createRoute(record, location, redirectedFrom, router)\n  }\n\n  return {\n    match: match,\n    addRoutes: addRoutes\n  }\n}\n\nfunction matchRoute (\n  regex,\n  path,\n  params\n) {\n  var m = path.match(regex);\n\n  if (!m) {\n    return false\n  } else if (!params) {\n    return true\n  }\n\n  for (var i = 1, len = m.length; i < len; ++i) {\n    var key = regex.keys[i - 1];\n    var val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i];\n    if (key) {\n      params[key.name] = val;\n    }\n  }\n\n  return true\n}\n\nfunction resolveRecordPath (path, record) {\n  return resolvePath(path, record.parent ? record.parent.path : '/', true)\n}\n\n/*  */\n\n\nvar positionStore = Object.create(null);\n\nfunction setupScroll () {\n  // Fix for #1585 for Firefox\n  window.history.replaceState({ key: getStateKey() }, '');\n  window.addEventListener('popstate', function (e) {\n    saveScrollPosition();\n    if (e.state && e.state.key) {\n      setStateKey(e.state.key);\n    }\n  });\n}\n\nfunction handleScroll (\n  router,\n  to,\n  from,\n  isPop\n) {\n  if (!router.app) {\n    return\n  }\n\n  var behavior = router.options.scrollBehavior;\n  if (!behavior) {\n    return\n  }\n\n  if (process.env.NODE_ENV !== 'production') {\n    assert(typeof behavior === 'function', \"scrollBehavior must be a function\");\n  }\n\n  // wait until re-render finishes before scrolling\n  router.app.$nextTick(function () {\n    var position = getScrollPosition();\n    var shouldScroll = behavior(to, from, isPop ? position : null);\n\n    if (!shouldScroll) {\n      return\n    }\n\n    if (typeof shouldScroll.then === 'function') {\n      shouldScroll.then(function (shouldScroll) {\n        scrollToPosition((shouldScroll), position);\n      }).catch(function (err) {\n        if (process.env.NODE_ENV !== 'production') {\n          assert(false, err.toString());\n        }\n      });\n    } else {\n      scrollToPosition(shouldScroll, position);\n    }\n  });\n}\n\nfunction saveScrollPosition () {\n  var key = getStateKey();\n  if (key) {\n    positionStore[key] = {\n      x: window.pageXOffset,\n      y: window.pageYOffset\n    };\n  }\n}\n\nfunction getScrollPosition () {\n  var key = getStateKey();\n  if (key) {\n    return positionStore[key]\n  }\n}\n\nfunction getElementPosition (el, offset) {\n  var docEl = document.documentElement;\n  var docRect = docEl.getBoundingClientRect();\n  var elRect = el.getBoundingClientRect();\n  return {\n    x: elRect.left - docRect.left - offset.x,\n    y: elRect.top - docRect.top - offset.y\n  }\n}\n\nfunction isValidPosition (obj) {\n  return isNumber(obj.x) || isNumber(obj.y)\n}\n\nfunction normalizePosition (obj) {\n  return {\n    x: isNumber(obj.x) ? obj.x : window.pageXOffset,\n    y: isNumber(obj.y) ? obj.y : window.pageYOffset\n  }\n}\n\nfunction normalizeOffset (obj) {\n  return {\n    x: isNumber(obj.x) ? obj.x : 0,\n    y: isNumber(obj.y) ? obj.y : 0\n  }\n}\n\nfunction isNumber (v) {\n  return typeof v === 'number'\n}\n\nfunction scrollToPosition (shouldScroll, position) {\n  var isObject = typeof shouldScroll === 'object';\n  if (isObject && typeof shouldScroll.selector === 'string') {\n    var el = document.querySelector(shouldScroll.selector);\n    if (el) {\n      var offset = shouldScroll.offset && typeof shouldScroll.offset === 'object' ? shouldScroll.offset : {};\n      offset = normalizeOffset(offset);\n      position = getElementPosition(el, offset);\n    } else if (isValidPosition(shouldScroll)) {\n      position = normalizePosition(shouldScroll);\n    }\n  } else if (isObject && isValidPosition(shouldScroll)) {\n    position = normalizePosition(shouldScroll);\n  }\n\n  if (position) {\n    window.scrollTo(position.x, position.y);\n  }\n}\n\n/*  */\n\nvar supportsPushState = inBrowser && (function () {\n  var ua = window.navigator.userAgent;\n\n  if (\n    (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&\n    ua.indexOf('Mobile Safari') !== -1 &&\n    ua.indexOf('Chrome') === -1 &&\n    ua.indexOf('Windows Phone') === -1\n  ) {\n    return false\n  }\n\n  return window.history && 'pushState' in window.history\n})();\n\n// use User Timing api (if present) for more accurate key precision\nvar Time = inBrowser && window.performance && window.performance.now\n  ? window.performance\n  : Date;\n\nvar _key = genKey();\n\nfunction genKey () {\n  return Time.now().toFixed(3)\n}\n\nfunction getStateKey () {\n  return _key\n}\n\nfunction setStateKey (key) {\n  _key = key;\n}\n\nfunction pushState (url, replace) {\n  saveScrollPosition();\n  // try...catch the pushState call to get around Safari\n  // DOM Exception 18 where it limits to 100 pushState calls\n  var history = window.history;\n  try {\n    if (replace) {\n      history.replaceState({ key: _key }, '', url);\n    } else {\n      _key = genKey();\n      history.pushState({ key: _key }, '', url);\n    }\n  } catch (e) {\n    window.location[replace ? 'replace' : 'assign'](url);\n  }\n}\n\nfunction replaceState (url) {\n  pushState(url, true);\n}\n\n/*  */\n\nfunction runQueue (queue, fn, cb) {\n  var step = function (index) {\n    if (index >= queue.length) {\n      cb();\n    } else {\n      if (queue[index]) {\n        fn(queue[index], function () {\n          step(index + 1);\n        });\n      } else {\n        step(index + 1);\n      }\n    }\n  };\n  step(0);\n}\n\n/*  */\n\nfunction resolveAsyncComponents (matched) {\n  return function (to, from, next) {\n    var hasAsync = false;\n    var pending = 0;\n    var error = null;\n\n    flatMapComponents(matched, function (def, _, match, key) {\n      // if it's a function and doesn't have cid attached,\n      // assume it's an async component resolve function.\n      // we are not using Vue's default async resolving mechanism because\n      // we want to halt the navigation until the incoming component has been\n      // resolved.\n      if (typeof def === 'function' && def.cid === undefined) {\n        hasAsync = true;\n        pending++;\n\n        var resolve = once(function (resolvedDef) {\n          if (isESModule(resolvedDef)) {\n            resolvedDef = resolvedDef.default;\n          }\n          // save resolved on async factory in case it's used elsewhere\n          def.resolved = typeof resolvedDef === 'function'\n            ? resolvedDef\n            : _Vue.extend(resolvedDef);\n          match.components[key] = resolvedDef;\n          pending--;\n          if (pending <= 0) {\n            next();\n          }\n        });\n\n        var reject = once(function (reason) {\n          var msg = \"Failed to resolve async component \" + key + \": \" + reason;\n          process.env.NODE_ENV !== 'production' && warn(false, msg);\n          if (!error) {\n            error = isError(reason)\n              ? reason\n              : new Error(msg);\n            next(error);\n          }\n        });\n\n        var res;\n        try {\n          res = def(resolve, reject);\n        } catch (e) {\n          reject(e);\n        }\n        if (res) {\n          if (typeof res.then === 'function') {\n            res.then(resolve, reject);\n          } else {\n            // new syntax in Vue 2.3\n            var comp = res.component;\n            if (comp && typeof comp.then === 'function') {\n              comp.then(resolve, reject);\n            }\n          }\n        }\n      }\n    });\n\n    if (!hasAsync) { next(); }\n  }\n}\n\nfunction flatMapComponents (\n  matched,\n  fn\n) {\n  return flatten(matched.map(function (m) {\n    return Object.keys(m.components).map(function (key) { return fn(\n      m.components[key],\n      m.instances[key],\n      m, key\n    ); })\n  }))\n}\n\nfunction flatten (arr) {\n  return Array.prototype.concat.apply([], arr)\n}\n\nvar hasSymbol =\n  typeof Symbol === 'function' &&\n  typeof Symbol.toStringTag === 'symbol';\n\nfunction isESModule (obj) {\n  return obj.__esModule || (hasSymbol && obj[Symbol.toStringTag] === 'Module')\n}\n\n// in Webpack 2, require.ensure now also returns a Promise\n// so the resolve/reject functions may get called an extra time\n// if the user uses an arrow function shorthand that happens to\n// return that Promise.\nfunction once (fn) {\n  var called = false;\n  return function () {\n    var args = [], len = arguments.length;\n    while ( len-- ) args[ len ] = arguments[ len ];\n\n    if (called) { return }\n    called = true;\n    return fn.apply(this, args)\n  }\n}\n\n/*  */\n\nvar History = function History (router, base) {\n  this.router = router;\n  this.base = normalizeBase(base);\n  // start with a route object that stands for \"nowhere\"\n  this.current = START;\n  this.pending = null;\n  this.ready = false;\n  this.readyCbs = [];\n  this.readyErrorCbs = [];\n  this.errorCbs = [];\n};\n\nHistory.prototype.listen = function listen (cb) {\n  this.cb = cb;\n};\n\nHistory.prototype.onReady = function onReady (cb, errorCb) {\n  if (this.ready) {\n    cb();\n  } else {\n    this.readyCbs.push(cb);\n    if (errorCb) {\n      this.readyErrorCbs.push(errorCb);\n    }\n  }\n};\n\nHistory.prototype.onError = function onError (errorCb) {\n  this.errorCbs.push(errorCb);\n};\n\nHistory.prototype.transitionTo = function transitionTo (location, onComplete, onAbort) {\n    var this$1 = this;\n\n  var route = this.router.match(location, this.current);\n  this.confirmTransition(route, function () {\n    this$1.updateRoute(route);\n    onComplete && onComplete(route);\n    this$1.ensureURL();\n\n    // fire ready cbs once\n    if (!this$1.ready) {\n      this$1.ready = true;\n      this$1.readyCbs.forEach(function (cb) { cb(route); });\n    }\n  }, function (err) {\n    if (onAbort) {\n      onAbort(err);\n    }\n    if (err && !this$1.ready) {\n      this$1.ready = true;\n      this$1.readyErrorCbs.forEach(function (cb) { cb(err); });\n    }\n  });\n};\n\nHistory.prototype.confirmTransition = function confirmTransition (route, onComplete, onAbort) {\n    var this$1 = this;\n\n  var current = this.current;\n  var abort = function (err) {\n    if (isError(err)) {\n      if (this$1.errorCbs.length) {\n        this$1.errorCbs.forEach(function (cb) { cb(err); });\n      } else {\n        warn(false, 'uncaught error during route navigation:');\n        console.error(err);\n      }\n    }\n    onAbort && onAbort(err);\n  };\n  if (\n    isSameRoute(route, current) &&\n    // in the case the route map has been dynamically appended to\n    route.matched.length === current.matched.length\n  ) {\n    this.ensureURL();\n    return abort()\n  }\n\n  var ref = resolveQueue(this.current.matched, route.matched);\n    var updated = ref.updated;\n    var deactivated = ref.deactivated;\n    var activated = ref.activated;\n\n  var queue = [].concat(\n    // in-component leave guards\n    extractLeaveGuards(deactivated),\n    // global before hooks\n    this.router.beforeHooks,\n    // in-component update hooks\n    extractUpdateHooks(updated),\n    // in-config enter guards\n    activated.map(function (m) { return m.beforeEnter; }),\n    // async components\n    resolveAsyncComponents(activated)\n  );\n\n  this.pending = route;\n  var iterator = function (hook, next) {\n    if (this$1.pending !== route) {\n      return abort()\n    }\n    try {\n      hook(route, current, function (to) {\n        if (to === false || isError(to)) {\n          // next(false) -> abort navigation, ensure current URL\n          this$1.ensureURL(true);\n          abort(to);\n        } else if (\n          typeof to === 'string' ||\n          (typeof to === 'object' && (\n            typeof to.path === 'string' ||\n            typeof to.name === 'string'\n          ))\n        ) {\n          // next('/') or next({ path: '/' }) -> redirect\n          abort();\n          if (typeof to === 'object' && to.replace) {\n            this$1.replace(to);\n          } else {\n            this$1.push(to);\n          }\n        } else {\n          // confirm transition and pass on the value\n          next(to);\n        }\n      });\n    } catch (e) {\n      abort(e);\n    }\n  };\n\n  runQueue(queue, iterator, function () {\n    var postEnterCbs = [];\n    var isValid = function () { return this$1.current === route; };\n    // wait until async components are resolved before\n    // extracting in-component enter guards\n    var enterGuards = extractEnterGuards(activated, postEnterCbs, isValid);\n    var queue = enterGuards.concat(this$1.router.resolveHooks);\n    runQueue(queue, iterator, function () {\n      if (this$1.pending !== route) {\n        return abort()\n      }\n      this$1.pending = null;\n      onComplete(route);\n      if (this$1.router.app) {\n        this$1.router.app.$nextTick(function () {\n          postEnterCbs.forEach(function (cb) { cb(); });\n        });\n      }\n    });\n  });\n};\n\nHistory.prototype.updateRoute = function updateRoute (route) {\n  var prev = this.current;\n  this.current = route;\n  this.cb && this.cb(route);\n  this.router.afterHooks.forEach(function (hook) {\n    hook && hook(route, prev);\n  });\n};\n\nfunction normalizeBase (base) {\n  if (!base) {\n    if (inBrowser) {\n      // respect <base> tag\n      var baseEl = document.querySelector('base');\n      base = (baseEl && baseEl.getAttribute('href')) || '/';\n      // strip full URL origin\n      base = base.replace(/^https?:\\/\\/[^\\/]+/, '');\n    } else {\n      base = '/';\n    }\n  }\n  // make sure there's the starting slash\n  if (base.charAt(0) !== '/') {\n    base = '/' + base;\n  }\n  // remove trailing slash\n  return base.replace(/\\/$/, '')\n}\n\nfunction resolveQueue (\n  current,\n  next\n) {\n  var i;\n  var max = Math.max(current.length, next.length);\n  for (i = 0; i < max; i++) {\n    if (current[i] !== next[i]) {\n      break\n    }\n  }\n  return {\n    updated: next.slice(0, i),\n    activated: next.slice(i),\n    deactivated: current.slice(i)\n  }\n}\n\nfunction extractGuards (\n  records,\n  name,\n  bind,\n  reverse\n) {\n  var guards = flatMapComponents(records, function (def, instance, match, key) {\n    var guard = extractGuard(def, name);\n    if (guard) {\n      return Array.isArray(guard)\n        ? guard.map(function (guard) { return bind(guard, instance, match, key); })\n        : bind(guard, instance, match, key)\n    }\n  });\n  return flatten(reverse ? guards.reverse() : guards)\n}\n\nfunction extractGuard (\n  def,\n  key\n) {\n  if (typeof def !== 'function') {\n    // extend now so that global mixins are applied.\n    def = _Vue.extend(def);\n  }\n  return def.options[key]\n}\n\nfunction extractLeaveGuards (deactivated) {\n  return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)\n}\n\nfunction extractUpdateHooks (updated) {\n  return extractGuards(updated, 'beforeRouteUpdate', bindGuard)\n}\n\nfunction bindGuard (guard, instance) {\n  if (instance) {\n    return function boundRouteGuard () {\n      return guard.apply(instance, arguments)\n    }\n  }\n}\n\nfunction extractEnterGuards (\n  activated,\n  cbs,\n  isValid\n) {\n  return extractGuards(activated, 'beforeRouteEnter', function (guard, _, match, key) {\n    return bindEnterGuard(guard, match, key, cbs, isValid)\n  })\n}\n\nfunction bindEnterGuard (\n  guard,\n  match,\n  key,\n  cbs,\n  isValid\n) {\n  return function routeEnterGuard (to, from, next) {\n    return guard(to, from, function (cb) {\n      next(cb);\n      if (typeof cb === 'function') {\n        cbs.push(function () {\n          // #750\n          // if a router-view is wrapped with an out-in transition,\n          // the instance may not have been registered at this time.\n          // we will need to poll for registration until current route\n          // is no longer valid.\n          poll(cb, match.instances, key, isValid);\n        });\n      }\n    })\n  }\n}\n\nfunction poll (\n  cb, // somehow flow cannot infer this is a function\n  instances,\n  key,\n  isValid\n) {\n  if (instances[key]) {\n    cb(instances[key]);\n  } else if (isValid()) {\n    setTimeout(function () {\n      poll(cb, instances, key, isValid);\n    }, 16);\n  }\n}\n\n/*  */\n\n\nvar HTML5History = (function (History$$1) {\n  function HTML5History (router, base) {\n    var this$1 = this;\n\n    History$$1.call(this, router, base);\n\n    var expectScroll = router.options.scrollBehavior;\n\n    if (expectScroll) {\n      setupScroll();\n    }\n\n    var initLocation = getLocation(this.base);\n    window.addEventListener('popstate', function (e) {\n      var current = this$1.current;\n\n      // Avoiding first `popstate` event dispatched in some browsers but first\n      // history route not updated since async guard at the same time.\n      var location = getLocation(this$1.base);\n      if (this$1.current === START && location === initLocation) {\n        return\n      }\n\n      this$1.transitionTo(location, function (route) {\n        if (expectScroll) {\n          handleScroll(router, route, current, true);\n        }\n      });\n    });\n  }\n\n  if ( History$$1 ) HTML5History.__proto__ = History$$1;\n  HTML5History.prototype = Object.create( History$$1 && History$$1.prototype );\n  HTML5History.prototype.constructor = HTML5History;\n\n  HTML5History.prototype.go = function go (n) {\n    window.history.go(n);\n  };\n\n  HTML5History.prototype.push = function push (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    var ref = this;\n    var fromRoute = ref.current;\n    this.transitionTo(location, function (route) {\n      pushState(cleanPath(this$1.base + route.fullPath));\n      handleScroll(this$1.router, route, fromRoute, false);\n      onComplete && onComplete(route);\n    }, onAbort);\n  };\n\n  HTML5History.prototype.replace = function replace (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    var ref = this;\n    var fromRoute = ref.current;\n    this.transitionTo(location, function (route) {\n      replaceState(cleanPath(this$1.base + route.fullPath));\n      handleScroll(this$1.router, route, fromRoute, false);\n      onComplete && onComplete(route);\n    }, onAbort);\n  };\n\n  HTML5History.prototype.ensureURL = function ensureURL (push) {\n    if (getLocation(this.base) !== this.current.fullPath) {\n      var current = cleanPath(this.base + this.current.fullPath);\n      push ? pushState(current) : replaceState(current);\n    }\n  };\n\n  HTML5History.prototype.getCurrentLocation = function getCurrentLocation () {\n    return getLocation(this.base)\n  };\n\n  return HTML5History;\n}(History));\n\nfunction getLocation (base) {\n  var path = window.location.pathname;\n  if (base && path.indexOf(base) === 0) {\n    path = path.slice(base.length);\n  }\n  return (path || '/') + window.location.search + window.location.hash\n}\n\n/*  */\n\n\nvar HashHistory = (function (History$$1) {\n  function HashHistory (router, base, fallback) {\n    History$$1.call(this, router, base);\n    // check history fallback deeplinking\n    if (fallback && checkFallback(this.base)) {\n      return\n    }\n    ensureSlash();\n  }\n\n  if ( History$$1 ) HashHistory.__proto__ = History$$1;\n  HashHistory.prototype = Object.create( History$$1 && History$$1.prototype );\n  HashHistory.prototype.constructor = HashHistory;\n\n  // this is delayed until the app mounts\n  // to avoid the hashchange listener being fired too early\n  HashHistory.prototype.setupListeners = function setupListeners () {\n    var this$1 = this;\n\n    var router = this.router;\n    var expectScroll = router.options.scrollBehavior;\n    var supportsScroll = supportsPushState && expectScroll;\n\n    if (supportsScroll) {\n      setupScroll();\n    }\n\n    window.addEventListener(supportsPushState ? 'popstate' : 'hashchange', function () {\n      var current = this$1.current;\n      if (!ensureSlash()) {\n        return\n      }\n      this$1.transitionTo(getHash(), function (route) {\n        if (supportsScroll) {\n          handleScroll(this$1.router, route, current, true);\n        }\n        if (!supportsPushState) {\n          replaceHash(route.fullPath);\n        }\n      });\n    });\n  };\n\n  HashHistory.prototype.push = function push (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    var ref = this;\n    var fromRoute = ref.current;\n    this.transitionTo(location, function (route) {\n      pushHash(route.fullPath);\n      handleScroll(this$1.router, route, fromRoute, false);\n      onComplete && onComplete(route);\n    }, onAbort);\n  };\n\n  HashHistory.prototype.replace = function replace (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    var ref = this;\n    var fromRoute = ref.current;\n    this.transitionTo(location, function (route) {\n      replaceHash(route.fullPath);\n      handleScroll(this$1.router, route, fromRoute, false);\n      onComplete && onComplete(route);\n    }, onAbort);\n  };\n\n  HashHistory.prototype.go = function go (n) {\n    window.history.go(n);\n  };\n\n  HashHistory.prototype.ensureURL = function ensureURL (push) {\n    var current = this.current.fullPath;\n    if (getHash() !== current) {\n      push ? pushHash(current) : replaceHash(current);\n    }\n  };\n\n  HashHistory.prototype.getCurrentLocation = function getCurrentLocation () {\n    return getHash()\n  };\n\n  return HashHistory;\n}(History));\n\nfunction checkFallback (base) {\n  var location = getLocation(base);\n  if (!/^\\/#/.test(location)) {\n    window.location.replace(\n      cleanPath(base + '/#' + location)\n    );\n    return true\n  }\n}\n\nfunction ensureSlash () {\n  var path = getHash();\n  if (path.charAt(0) === '/') {\n    return true\n  }\n  replaceHash('/' + path);\n  return false\n}\n\nfunction getHash () {\n  // We can't use window.location.hash here because it's not\n  // consistent across browsers - Firefox will pre-decode it!\n  var href = window.location.href;\n  var index = href.indexOf('#');\n  return index === -1 ? '' : href.slice(index + 1)\n}\n\nfunction getUrl (path) {\n  var href = window.location.href;\n  var i = href.indexOf('#');\n  var base = i >= 0 ? href.slice(0, i) : href;\n  return (base + \"#\" + path)\n}\n\nfunction pushHash (path) {\n  if (supportsPushState) {\n    pushState(getUrl(path));\n  } else {\n    window.location.hash = path;\n  }\n}\n\nfunction replaceHash (path) {\n  if (supportsPushState) {\n    replaceState(getUrl(path));\n  } else {\n    window.location.replace(getUrl(path));\n  }\n}\n\n/*  */\n\n\nvar AbstractHistory = (function (History$$1) {\n  function AbstractHistory (router, base) {\n    History$$1.call(this, router, base);\n    this.stack = [];\n    this.index = -1;\n  }\n\n  if ( History$$1 ) AbstractHistory.__proto__ = History$$1;\n  AbstractHistory.prototype = Object.create( History$$1 && History$$1.prototype );\n  AbstractHistory.prototype.constructor = AbstractHistory;\n\n  AbstractHistory.prototype.push = function push (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    this.transitionTo(location, function (route) {\n      this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);\n      this$1.index++;\n      onComplete && onComplete(route);\n    }, onAbort);\n  };\n\n  AbstractHistory.prototype.replace = function replace (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    this.transitionTo(location, function (route) {\n      this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);\n      onComplete && onComplete(route);\n    }, onAbort);\n  };\n\n  AbstractHistory.prototype.go = function go (n) {\n    var this$1 = this;\n\n    var targetIndex = this.index + n;\n    if (targetIndex < 0 || targetIndex >= this.stack.length) {\n      return\n    }\n    var route = this.stack[targetIndex];\n    this.confirmTransition(route, function () {\n      this$1.index = targetIndex;\n      this$1.updateRoute(route);\n    });\n  };\n\n  AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation () {\n    var current = this.stack[this.stack.length - 1];\n    return current ? current.fullPath : '/'\n  };\n\n  AbstractHistory.prototype.ensureURL = function ensureURL () {\n    // noop\n  };\n\n  return AbstractHistory;\n}(History));\n\n/*  */\n\nvar VueRouter = function VueRouter (options) {\n  if ( options === void 0 ) options = {};\n\n  this.app = null;\n  this.apps = [];\n  this.options = options;\n  this.beforeHooks = [];\n  this.resolveHooks = [];\n  this.afterHooks = [];\n  this.matcher = createMatcher(options.routes || [], this);\n\n  var mode = options.mode || 'hash';\n  this.fallback = mode === 'history' && !supportsPushState && options.fallback !== false;\n  if (this.fallback) {\n    mode = 'hash';\n  }\n  if (!inBrowser) {\n    mode = 'abstract';\n  }\n  this.mode = mode;\n\n  switch (mode) {\n    case 'history':\n      this.history = new HTML5History(this, options.base);\n      break\n    case 'hash':\n      this.history = new HashHistory(this, options.base, this.fallback);\n      break\n    case 'abstract':\n      this.history = new AbstractHistory(this, options.base);\n      break\n    default:\n      if (process.env.NODE_ENV !== 'production') {\n        assert(false, (\"invalid mode: \" + mode));\n      }\n  }\n};\n\nvar prototypeAccessors = { currentRoute: { configurable: true } };\n\nVueRouter.prototype.match = function match (\n  raw,\n  current,\n  redirectedFrom\n) {\n  return this.matcher.match(raw, current, redirectedFrom)\n};\n\nprototypeAccessors.currentRoute.get = function () {\n  return this.history && this.history.current\n};\n\nVueRouter.prototype.init = function init (app /* Vue component instance */) {\n    var this$1 = this;\n\n  process.env.NODE_ENV !== 'production' && assert(\n    install.installed,\n    \"not installed. Make sure to call `Vue.use(VueRouter)` \" +\n    \"before creating root instance.\"\n  );\n\n  this.apps.push(app);\n\n  // main app already initialized.\n  if (this.app) {\n    return\n  }\n\n  this.app = app;\n\n  var history = this.history;\n\n  if (history instanceof HTML5History) {\n    history.transitionTo(history.getCurrentLocation());\n  } else if (history instanceof HashHistory) {\n    var setupHashListener = function () {\n      history.setupListeners();\n    };\n    history.transitionTo(\n      history.getCurrentLocation(),\n      setupHashListener,\n      setupHashListener\n    );\n  }\n\n  history.listen(function (route) {\n    this$1.apps.forEach(function (app) {\n      app._route = route;\n    });\n  });\n};\n\nVueRouter.prototype.beforeEach = function beforeEach (fn) {\n  return registerHook(this.beforeHooks, fn)\n};\n\nVueRouter.prototype.beforeResolve = function beforeResolve (fn) {\n  return registerHook(this.resolveHooks, fn)\n};\n\nVueRouter.prototype.afterEach = function afterEach (fn) {\n  return registerHook(this.afterHooks, fn)\n};\n\nVueRouter.prototype.onReady = function onReady (cb, errorCb) {\n  this.history.onReady(cb, errorCb);\n};\n\nVueRouter.prototype.onError = function onError (errorCb) {\n  this.history.onError(errorCb);\n};\n\nVueRouter.prototype.push = function push (location, onComplete, onAbort) {\n  this.history.push(location, onComplete, onAbort);\n};\n\nVueRouter.prototype.replace = function replace (location, onComplete, onAbort) {\n  this.history.replace(location, onComplete, onAbort);\n};\n\nVueRouter.prototype.go = function go (n) {\n  this.history.go(n);\n};\n\nVueRouter.prototype.back = function back () {\n  this.go(-1);\n};\n\nVueRouter.prototype.forward = function forward () {\n  this.go(1);\n};\n\nVueRouter.prototype.getMatchedComponents = function getMatchedComponents (to) {\n  var route = to\n    ? to.matched\n      ? to\n      : this.resolve(to).route\n    : this.currentRoute;\n  if (!route) {\n    return []\n  }\n  return [].concat.apply([], route.matched.map(function (m) {\n    return Object.keys(m.components).map(function (key) {\n      return m.components[key]\n    })\n  }))\n};\n\nVueRouter.prototype.resolve = function resolve (\n  to,\n  current,\n  append\n) {\n  var location = normalizeLocation(\n    to,\n    current || this.history.current,\n    append,\n    this\n  );\n  var route = this.match(location, current);\n  var fullPath = route.redirectedFrom || route.fullPath;\n  var base = this.history.base;\n  var href = createHref(base, fullPath, this.mode);\n  return {\n    location: location,\n    route: route,\n    href: href,\n    // for backwards compat\n    normalizedTo: location,\n    resolved: route\n  }\n};\n\nVueRouter.prototype.addRoutes = function addRoutes (routes) {\n  this.matcher.addRoutes(routes);\n  if (this.history.current !== START) {\n    this.history.transitionTo(this.history.getCurrentLocation());\n  }\n};\n\nObject.defineProperties( VueRouter.prototype, prototypeAccessors );\n\nfunction registerHook (list, fn) {\n  list.push(fn);\n  return function () {\n    var i = list.indexOf(fn);\n    if (i > -1) { list.splice(i, 1); }\n  }\n}\n\nfunction createHref (base, fullPath, mode) {\n  var path = mode === 'hash' ? '#' + fullPath : fullPath;\n  return base ? cleanPath(base + '/' + path) : path\n}\n\nVueRouter.install = install;\nVueRouter.version = '3.0.1';\n\nif (inBrowser && window.Vue) {\n  window.Vue.use(VueRouter);\n}\n\nexport default VueRouter;\n","var bundleURL = null;\nfunction getBundleURLCached() {\n  if (!bundleURL) {\n    bundleURL = getBundleURL();\n  }\n\n  return bundleURL;\n}\n\nfunction getBundleURL() {\n  // Attempt to find the URL of the current script and use that as the base URL\n  try {\n    throw new Error;\n  } catch (err) {\n    var matches = ('' + err.stack).match(/(https?|file|ftp):\\/\\/[^)\\n]+/g);\n    if (matches) {\n      return getBaseURL(matches[0]);\n    }\n  }\n\n  return '/';\n}\n\nfunction getBaseURL(url) {\n  return ('' + url).replace(/^((?:https?|file|ftp):\\/\\/.+)\\/[^/]+$/, '$1') + '/';\n}\n\nexports.getBundleURL = getBundleURLCached;\nexports.getBaseURL = getBaseURL;\n","var bundle = require('./bundle-url');\n\nfunction updateLink(link) {\n  var newLink = link.cloneNode();\n  newLink.onload = function () {\n    link.remove();\n  };\n  newLink.href = link.href.split('?')[0] + '?' + Date.now();\n  link.parentNode.insertBefore(newLink, link.nextSibling);\n}\n\nvar cssTimeout = null;\nfunction reloadCSS() {\n  if (cssTimeout) {\n    return;\n  }\n\n  cssTimeout = setTimeout(function () {\n    var links = document.querySelectorAll('link[rel=\"stylesheet\"]');\n    for (var i = 0; i < links.length; i++) {\n      if (bundle.getBaseURL(links[i].href) === bundle.getBundleURL()) {\n        updateLink(links[i]);\n      }\n    }\n\n    cssTimeout = null;\n  }, 50);\n}\n\nmodule.exports = reloadCSS;\n","var Vue // late bind\nvar version\nvar map = Object.create(null)\nif (typeof window !== 'undefined') {\n  window.__VUE_HOT_MAP__ = map\n}\nvar installed = false\nvar isBrowserify = false\nvar initHookName = 'beforeCreate'\n\nexports.install = function (vue, browserify) {\n  if (installed) { return }\n  installed = true\n\n  Vue = vue.__esModule ? vue.default : vue\n  version = Vue.version.split('.').map(Number)\n  isBrowserify = browserify\n\n  // compat with < 2.0.0-alpha.7\n  if (Vue.config._lifecycleHooks.indexOf('init') > -1) {\n    initHookName = 'init'\n  }\n\n  exports.compatible = version[0] >= 2\n  if (!exports.compatible) {\n    console.warn(\n      '[HMR] You are using a version of vue-hot-reload-api that is ' +\n        'only compatible with Vue.js core ^2.0.0.'\n    )\n    return\n  }\n}\n\n/**\n * Create a record for a hot module, which keeps track of its constructor\n * and instances\n *\n * @param {String} id\n * @param {Object} options\n */\n\nexports.createRecord = function (id, options) {\n  if(map[id]) { return }\n\n  var Ctor = null\n  if (typeof options === 'function') {\n    Ctor = options\n    options = Ctor.options\n  }\n  makeOptionsHot(id, options)\n  map[id] = {\n    Ctor: Ctor,\n    options: options,\n    instances: []\n  }\n}\n\n/**\n * Check if module is recorded\n *\n * @param {String} id\n */\n\nexports.isRecorded = function (id) {\n  return typeof map[id] !== 'undefined'\n}\n\n/**\n * Make a Component options object hot.\n *\n * @param {String} id\n * @param {Object} options\n */\n\nfunction makeOptionsHot(id, options) {\n  if (options.functional) {\n    var render = options.render\n    options.render = function (h, ctx) {\n      var instances = map[id].instances\n      if (ctx && instances.indexOf(ctx.parent) < 0) {\n        instances.push(ctx.parent)\n      }\n      return render(h, ctx)\n    }\n  } else {\n    injectHook(options, initHookName, function() {\n      var record = map[id]\n      if (!record.Ctor) {\n        record.Ctor = this.constructor\n      }\n      record.instances.push(this)\n    })\n    injectHook(options, 'beforeDestroy', function() {\n      var instances = map[id].instances\n      instances.splice(instances.indexOf(this), 1)\n    })\n  }\n}\n\n/**\n * Inject a hook to a hot reloadable component so that\n * we can keep track of it.\n *\n * @param {Object} options\n * @param {String} name\n * @param {Function} hook\n */\n\nfunction injectHook(options, name, hook) {\n  var existing = options[name]\n  options[name] = existing\n    ? Array.isArray(existing) ? existing.concat(hook) : [existing, hook]\n    : [hook]\n}\n\nfunction tryWrap(fn) {\n  return function (id, arg) {\n    try {\n      fn(id, arg)\n    } catch (e) {\n      console.error(e)\n      console.warn(\n        'Something went wrong during Vue component hot-reload. Full reload required.'\n      )\n    }\n  }\n}\n\nfunction updateOptions (oldOptions, newOptions) {\n  for (var key in oldOptions) {\n    if (!(key in newOptions)) {\n      delete oldOptions[key]\n    }\n  }\n  for (var key$1 in newOptions) {\n    oldOptions[key$1] = newOptions[key$1]\n  }\n}\n\nexports.rerender = tryWrap(function (id, options) {\n  var record = map[id]\n  if (!options) {\n    record.instances.slice().forEach(function (instance) {\n      instance.$forceUpdate()\n    })\n    return\n  }\n  if (typeof options === 'function') {\n    options = options.options\n  }\n  if (record.Ctor) {\n    record.Ctor.options.render = options.render\n    record.Ctor.options.staticRenderFns = options.staticRenderFns\n    record.instances.slice().forEach(function (instance) {\n      instance.$options.render = options.render\n      instance.$options.staticRenderFns = options.staticRenderFns\n      // reset static trees\n      // pre 2.5, all static trees are cached together on the instance\n      if (instance._staticTrees) {\n        instance._staticTrees = []\n      }\n      // 2.5.0\n      if (Array.isArray(record.Ctor.options.cached)) {\n        record.Ctor.options.cached = []\n      }\n      // 2.5.3\n      if (Array.isArray(instance.$options.cached)) {\n        instance.$options.cached = []\n      }\n      // post 2.5.4: v-once trees are cached on instance._staticTrees.\n      // Pure static trees are cached on the staticRenderFns array\n      // (both already reset above)\n      instance.$forceUpdate()\n    })\n  } else {\n    // functional or no instance created yet\n    record.options.render = options.render\n    record.options.staticRenderFns = options.staticRenderFns\n\n    // handle functional component re-render\n    if (record.options.functional) {\n      // rerender with full options\n      if (Object.keys(options).length > 2) {\n        updateOptions(record.options, options)\n      } else {\n        // template-only rerender.\n        // need to inject the style injection code for CSS modules\n        // to work properly.\n        var injectStyles = record.options._injectStyles\n        if (injectStyles) {\n          var render = options.render\n          record.options.render = function (h, ctx) {\n            injectStyles.call(ctx)\n            return render(h, ctx)\n          }\n        }\n      }\n      record.options._Ctor = null\n      // 2.5.3\n      if (Array.isArray(record.options.cached)) {\n        record.options.cached = []\n      }\n      record.instances.slice().forEach(function (instance) {\n        instance.$forceUpdate()\n      })\n    }\n  }\n})\n\nexports.reload = tryWrap(function (id, options) {\n  var record = map[id]\n  if (options) {\n    if (typeof options === 'function') {\n      options = options.options\n    }\n    makeOptionsHot(id, options)\n    if (record.Ctor) {\n      if (version[1] < 2) {\n        // preserve pre 2.2 behavior for global mixin handling\n        record.Ctor.extendOptions = options\n      }\n      var newCtor = record.Ctor.super.extend(options)\n      record.Ctor.options = newCtor.options\n      record.Ctor.cid = newCtor.cid\n      record.Ctor.prototype = newCtor.prototype\n      if (newCtor.release) {\n        // temporary global mixin strategy used in < 2.0.0-alpha.6\n        newCtor.release()\n      }\n    } else {\n      updateOptions(record.options, options)\n    }\n  }\n  record.instances.slice().forEach(function (instance) {\n    if (instance.$vnode && instance.$vnode.context) {\n      instance.$vnode.context.$forceUpdate()\n    } else {\n      console.warn(\n        'Root or manually mounted instance modified. Full reload required.'\n      )\n    }\n  })\n})\n","<template lang=\"html\">\n  <div class=\"content\">\n    <p>\n      <router-link to=\"/\">Go back</router-link>      \n    </p>\n    <router-view></router-view>\n  </div>\n</template>\n\n<script>\nexport default {\n  name: \"App\"\n};\n</script>\n\n<style lang=\"css\">\n</style>","<template lang=\"html\">\n  <div>\n    <ul>\n      <li v-for=\"item in containers\" class=\"columns unstyled box\">\n        <div class=\"column is-6\">\n          <router-link :to=\"{name: 'container', params: {id: item.Id}}\">{{ item.Names[0] }}</router-link>\n        </div>\n        <div class=\"column is-4\">\n          <code>{{ item.Image }}</code>\n        </div>\n        <div class=\"column is-2\">\n          {{ item.Status}}\n        </div>\n      </li>\n    </ul>\n  </div>\n</template>\n\n<script>\nexport default {\n  name: \"Index\",\n  data() {\n    return {\n      containers: []\n    };\n  },\n  async created() {\n    this.containers = await (await fetch(`/api/containers.json`)).json();\n  }\n};\n</script>\n\n<style lang=\"css\">\n</style>","<template lang=\"html\">\n  <pre ref=\"logs\">\n    \n  </pre>\n</template>\n\n<script>\nlet ws;\nexport default {\n  props: [\"id\"],\n  name: \"Container\",\n  mounted() {\n    ws = new WebSocket(`ws://${window.location.host}/api/logs?id=${this.id}`);\n    ws.onopen = e => console.log(\"Connection opened.\");\n    ws.onclose = e => console.log(\"Connection closed.\");\n    ws.onerror = e => console.error(\"Connection error: \" + e.data);\n    ws.onmessage = e => {\n      const parent = this.$refs.logs;\n      const item = document.createTextNode(e.data);\n      parent.appendChild(item);\n      parent.scrollIntoView({block: \"end\"});\n    };\n  }\n};\n</script>\n<style>\n\n</style>","import Vue from \"vue\";\nimport VueRouter from \"vue-router\";\nVue.use(VueRouter);\n\nimport App from \"./App.vue\";\nimport Index from \"./pages/Index.vue\";\nimport Container from \"./pages/Container.vue\";\n\nconst routes = [\n  { path: \"/\", component: Index },\n  {\n    path: \"/container/:id\",\n    component: Container,\n    name: \"container\",\n    props: true\n  }\n];\n\nconst router = new VueRouter({\n  mode: \"history\",\n  routes\n});\n\nnew Vue({\n  router,\n  render: h => h(App)\n}).$mount(\"#app\");\n"]}
\ No newline at end of file
