From bdd382118d97e82fc184fa8ed87d86cdaebe4d2a Mon Sep 17 00:00:00 2001
From: txy <421111298@qq.com>
Date: Tue, 9 Jul 2019 14:04:03 +0800
Subject: [PATCH] '移除vue;

---
 showPhotos/js/vue.js | 11944 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 1 file changed, 11944 deletions(-)
 delete mode 100644 showPhotos/js/vue.js

diff --git a/showPhotos/js/vue.js b/showPhotos/js/vue.js
deleted file mode 100644
index e8bda3b..0000000
--- a/showPhotos/js/vue.js
+++ /dev/null
@@ -1,11944 +0,0 @@
-/*!
- * Vue.js v2.6.10
- * (c) 2014-2019 Evan You
- * Released under the MIT License.
- */
-(function (global, factory) {
-    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-    typeof define === 'function' && define.amd ? define(factory) :
-    (global = global || self, global.Vue = factory());
-  }(this, function () { 'use strict';
-  
-    /*  */
-  
-    var emptyObject = Object.freeze({});
-  
-    // These helpers produce 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)
-    }
-  
-    function isPromise (val) {
-      return (
-        isDef(val) &&
-        typeof val.then === 'function' &&
-        typeof val.catch === 'function'
-      )
-    }
-  
-    /**
-     * Convert a value to a string that is actually rendered.
-     */
-    function toString (val) {
-      return val == null
-        ? ''
-        : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
-          ? JSON.stringify(val, null, 2)
-          : String(val)
-    }
-  
-    /**
-     * Convert an 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 an 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 an 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 performant enough in most browsers.
-     * But removing it would mean breaking code that was able to run in
-     * PhantomJS 1.x, so this must be kept for backward 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
-    }
-  
-    /* eslint-disable no-unused-vars */
-  
-    /**
-     * 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; };
-  
-    /* eslint-enable no-unused-vars */
-  
-    /**
-     * Return the same value.
-     */
-    var identity = function (_) { return _; };
-  
-    /**
-     * Generate a string containing static keys from compiler modules.
-     */
-    function genStaticKeys (modules) {
-      return modules.reduce(function (keys, m) {
-        return keys.concat(m.staticKeys || [])
-      }, []).join(',')
-    }
-  
-    /**
-     * 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 (a instanceof Date && b instanceof Date) {
-            return a.getTime() === b.getTime()
-          } 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
-      }
-    }
-  
-    /**
-     * Return the first index at which a loosely equal value can be
-     * found in the array (if value is a plain object, the array must
-     * contain an object of the same shape), or -1 if it is not present.
-     */
-    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',
-      'serverPrefetch'
-    ];
-  
-    /*  */
-  
-  
-  
-    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,
-  
-      /**
-       * Perform updates asynchronously. Intended to be used by Vue Test Utils
-       * This will significantly reduce performance if set to false.
-       */
-      async: true,
-  
-      /**
-       * Exposed for legacy reasons
-       */
-      _lifecycleHooks: LIFECYCLE_HOOKS
-    });
-  
-    /*  */
-  
-    /**
-     * unicode letters used for parsing html tags, component names and property paths.
-     * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
-     * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
-     */
-    var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
-  
-    /**
-     * 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 = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
-    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;
-    var isPhantomJS = UA && /phantomjs/.test(UA);
-    var isFF = UA && UA.match(/firefox\/(\d+)/);
-  
-    // 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'] && 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 */ // $flow-disable-line
-    if (typeof Set !== 'undefined' && isNative(Set)) {
-      // use native Set when available.
-      _Set = Set;
-    } else {
-      // a non-standard Set polyfill that only works with primitive keys.
-      _Set = /*@__PURE__*/(function () {
-        function Set () {
-          this.set = Object.create(null);
-        }
-        Set.prototype.has = function has (key) {
-          return this.set[key] === true
-        };
-        Set.prototype.add = function add (key) {
-          this.set[key] = true;
-        };
-        Set.prototype.clear = function clear () {
-          this.set = Object.create(null);
-        };
-  
-        return Set;
-      }());
-    }
-  
-    /*  */
-  
-    var warn = noop;
-    var tip = noop;
-    var generateComponentTrace = (noop); // work around flow check
-    var formatComponentName = (noop);
-  
-    {
-      var hasConsole = typeof console !== 'undefined';
-      var classifyRE = /(?:^|[-_])(\w)/g;
-      var classify = function (str) { return str
-        .replace(classifyRE, function (c) { return c.toUpperCase(); })
-        .replace(/[-_]/g, ''); };
-  
-      warn = function (msg, vm) {
-        var trace = vm ? generateComponentTrace(vm) : '';
-  
-        if (config.warnHandler) {
-          config.warnHandler.call(null, msg, vm, trace);
-        } else if (hasConsole && (!config.silent)) {
-          console.error(("[Vue warn]: " + msg + trace));
-        }
-      };
-  
-      tip = function (msg, vm) {
-        if (hasConsole && (!config.silent)) {
-          console.warn("[Vue tip]: " + msg + (
-            vm ? generateComponentTrace(vm) : ''
-          ));
-        }
-      };
-  
-      formatComponentName = function (vm, includeFile) {
-        if (vm.$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();
-      if (!config.async) {
-        // subs aren't sorted in scheduler if not running async
-        // we need to sort them now to make sure they fire in correct
-        // order
-        subs.sort(function (a, b) { return a.id - b.id; });
-      }
-      for (var i = 0, l = subs.length; i < l; i++) {
-        subs[i].update();
-      }
-    };
-  
-    // The current target watcher being evaluated.
-    // This is globally unique because only one watcher
-    // can be evaluated at a time.
-    Dep.target = null;
-    var targetStack = [];
-  
-    function pushTarget (target) {
-      targetStack.push(target);
-      Dep.target = target;
-    }
-  
-    function popTarget () {
-      targetStack.pop();
-      Dep.target = targetStack[targetStack.length - 1];
-    }
-  
-    /*  */
-  
-    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,
-        // #7975
-        // clone children array to avoid mutating original in case of cloning
-        // a child.
-        vnode.children && vnode.children.slice(),
-        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.asyncMeta = vnode.asyncMeta;
-      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)) {
-        if (hasProto) {
-          protoAugment(value, arrayMethods);
-        } else {
-          copyAugment(value, arrayMethods, arrayKeys);
-        }
-        this.observeArray(value);
-      } else {
-        this.walk(value);
-      }
-    };
-  
-    /**
-     * Walk through all properties and convert them into
-     * getter/setters. This method should only be called when
-     * value type is Object.
-     */
-    Observer.prototype.walk = function walk (obj) {
-      var keys = Object.keys(obj);
-      for (var i = 0; i < keys.length; i++) {
-        defineReactive$$1(obj, keys[i]);
-      }
-    };
-  
-    /**
-     * Observe a list of Array items.
-     */
-    Observer.prototype.observeArray = function observeArray (items) {
-      for (var i = 0, l = items.length; i < l; i++) {
-        observe(items[i]);
-      }
-    };
-  
-    // helpers
-  
-    /**
-     * Augment a target Object or Array by intercepting
-     * the prototype chain using __proto__
-     */
-    function protoAugment (target, src) {
-      /* eslint-disable no-proto */
-      target.__proto__ = src;
-      /* eslint-enable no-proto */
-    }
-  
-    /**
-     * Augment a target Object or Array by defining
-     * hidden properties.
-     */
-    /* istanbul ignore next */
-    function copyAugment (target, src, keys) {
-      for (var i = 0, l = keys.length; i < l; i++) {
-        var key = keys[i];
-        def(target, key, src[key]);
-      }
-    }
-  
-    /**
-     * Attempt to create an observer instance for a value,
-     * returns the new observer if successfully observed,
-     * or the existing observer if the value already has one.
-     */
-    function observe (value, asRootData) {
-      if (!isObject(value) || value instanceof VNode) {
-        return
-      }
-      var ob;
-      if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-        ob = value.__ob__;
-      } else if (
-        shouldObserve &&
-        !isServerRendering() &&
-        (Array.isArray(value) || isPlainObject(value)) &&
-        Object.isExtensible(value) &&
-        !value._isVue
-      ) {
-        ob = new Observer(value);
-      }
-      if (asRootData && ob) {
-        ob.vmCount++;
-      }
-      return ob
-    }
-  
-    /**
-     * Define a reactive property on an Object.
-     */
-    function defineReactive$$1 (
-      obj,
-      key,
-      val,
-      customSetter,
-      shallow
-    ) {
-      var dep = new Dep();
-  
-      var property = Object.getOwnPropertyDescriptor(obj, key);
-      if (property && property.configurable === false) {
-        return
-      }
-  
-      // cater for pre-defined getter/setters
-      var getter = property && property.get;
-      var setter = property && property.set;
-      if ((!getter || setter) && arguments.length === 2) {
-        val = obj[key];
-      }
-  
-      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 (customSetter) {
-            customSetter();
-          }
-          // #7981: for accessor properties without setter
-          if (getter && !setter) { return }
-          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 (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)) {
-        warn(
-          'Avoid adding reactive properties to a Vue instance or its root $data ' +
-          'at runtime - declare it upfront in the data option.'
-        );
-        return val
-      }
-      if (!ob) {
-        target[key] = val;
-        return val
-      }
-      defineReactive$$1(ob.value, key, val);
-      ob.dep.notify();
-      return val
-    }
-  
-    /**
-     * Delete a property and trigger change if necessary.
-     */
-    function del (target, key) {
-      if (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)) {
-        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
-     */
-    {
-      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 = hasSymbol
-        ? Reflect.ownKeys(from)
-        : Object.keys(from);
-  
-      for (var i = 0; i < keys.length; i++) {
-        key = keys[i];
-        // in case the object is already observed...
-        if (key === '__ob__') { continue }
-        toVal = to[key];
-        fromVal = from[key];
-        if (!hasOwn(to, key)) {
-          set(to, key, fromVal);
-        } else if (
-          toVal !== fromVal &&
-          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') {
-          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
-    ) {
-      var res = childVal
-        ? parentVal
-          ? parentVal.concat(childVal)
-          : Array.isArray(childVal)
-            ? childVal
-            : [childVal]
-        : parentVal;
-      return res
-        ? dedupeHooks(res)
-        : res
-    }
-  
-    function dedupeHooks (hooks) {
-      var res = [];
-      for (var i = 0; i < hooks.length; i++) {
-        if (res.indexOf(hooks[i]) === -1) {
-          res.push(hooks[i]);
-        }
-      }
-      return res
-    }
-  
-    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) {
-        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) }
-      {
-        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 (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'should conform to valid custom element name in html5 specification.'
-        );
-      }
-      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 {
-            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 {
-        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 {
-        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$$1 = dirs[key];
-          if (typeof def$$1 === 'function') {
-            dirs[key] = { bind: def$$1, update: def$$1 };
-          }
-        }
-      }
-    }
-  
-    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
-    ) {
-      {
-        checkComponents(child);
-      }
-  
-      if (typeof child === 'function') {
-        child = child.options;
-      }
-  
-      normalizeProps(child, vm);
-      normalizeInject(child, vm);
-      normalizeDirectives(child);
-  
-      // Apply extends and mixins on the child options,
-      // but only if it is a raw options object that isn't
-      // the result of another mergeOptions call.
-      // Only merged options has the _base property.
-      if (!child._base) {
-        if (child.extends) {
-          parent = mergeOptions(parent, child.extends, 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 (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);
-      }
-      {
-        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 (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(
-          getInvalidTypeMessage(name, value, expectedTypes),
-          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 getInvalidTypeMessage (name, value, expectedTypes) {
-      var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
-        " Expected " + (expectedTypes.map(capitalize).join(', '));
-      var expectedType = expectedTypes[0];
-      var receivedType = toRawType(value);
-      var expectedValue = styleValue(value, expectedType);
-      var receivedValue = styleValue(value, receivedType);
-      // check if we need to specify expected value
-      if (expectedTypes.length === 1 &&
-          isExplicable(expectedType) &&
-          !isBoolean(expectedType, receivedType)) {
-        message += " with value " + expectedValue;
-      }
-      message += ", got " + receivedType + " ";
-      // check if we need to specify received value
-      if (isExplicable(receivedType)) {
-        message += "with value " + receivedValue + ".";
-      }
-      return message
-    }
-  
-    function styleValue (value, type) {
-      if (type === 'String') {
-        return ("\"" + value + "\"")
-      } else if (type === 'Number') {
-        return ("" + (Number(value)))
-      } else {
-        return ("" + value)
-      }
-    }
-  
-    function isExplicable (value) {
-      var explicitTypes = ['string', 'number', 'boolean'];
-      return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
-    }
-  
-    function isBoolean () {
-      var args = [], len = arguments.length;
-      while ( len-- ) args[ len ] = arguments[ len ];
-  
-      return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
-    }
-  
-    /*  */
-  
-    function handleError (err, vm, info) {
-      // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
-      // See: https://github.com/vuejs/vuex/issues/1505
-      pushTarget();
-      try {
-        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);
-      } finally {
-        popTarget();
-      }
-    }
-  
-    function invokeWithErrorHandling (
-      handler,
-      context,
-      args,
-      vm,
-      info
-    ) {
-      var res;
-      try {
-        res = args ? handler.apply(context, args) : handler.call(context);
-        if (res && !res._isVue && isPromise(res) && !res._handled) {
-          res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
-          // issue #9511
-          // avoid catch triggering multiple times when nested calls
-          res._handled = true;
-        }
-      } catch (e) {
-        handleError(e, vm, info);
-      }
-      return res
-    }
-  
-    function globalHandleError (err, vm, info) {
-      if (config.errorHandler) {
-        try {
-          return config.errorHandler.call(null, err, vm, info)
-        } catch (e) {
-          // if the user intentionally throws the original error in the handler,
-          // do not log it twice
-          if (e !== err) {
-            logError(e, null, 'config.errorHandler');
-          }
-        }
-      }
-      logError(err, vm, info);
-    }
-  
-    function logError (err, vm, info) {
-      {
-        warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-      }
-      /* istanbul ignore else */
-      if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-        console.error(err);
-      } else {
-        throw err
-      }
-    }
-  
-    /*  */
-  
-    var isUsingMicroTask = false;
-  
-    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 microtasks.
-    // In 2.5 we used (macro) tasks (in combination with microtasks).
-    // However, it has subtle problems when state is changed right before repaint
-    // (e.g. #6813, out-in transitions).
-    // Also, using (macro) tasks in event handler would cause some weird behaviors
-    // that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
-    // So we now use microtasks everywhere, again.
-    // A major drawback of this tradeoff is that there are some scenarios
-    // where microtasks have too high a priority and fire in between supposedly
-    // sequential events (e.g. #4521, #6690, which have workarounds)
-    // or even between bubbling of the same event (#6566).
-    var timerFunc;
-  
-    // The nextTick behavior leverages the microtask queue, which can be accessed
-    // via either native Promise.then or MutationObserver.
-    // MutationObserver has wider support, however it is seriously bugged in
-    // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-    // completely stops working after triggering a few times... so, if native
-    // Promise is available, we will use it:
-    /* istanbul ignore next, $flow-disable-line */
-    if (typeof Promise !== 'undefined' && isNative(Promise)) {
-      var p = Promise.resolve();
-      timerFunc = 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); }
-      };
-      isUsingMicroTask = true;
-    } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-      isNative(MutationObserver) ||
-      // PhantomJS and iOS 7.x
-      MutationObserver.toString() === '[object MutationObserverConstructor]'
-    )) {
-      // Use MutationObserver where native Promise is not available,
-      // e.g. PhantomJS, iOS7, Android 4.4
-      // (#6466 MutationObserver is unreliable in IE11)
-      var counter = 1;
-      var observer = new MutationObserver(flushCallbacks);
-      var textNode = document.createTextNode(String(counter));
-      observer.observe(textNode, {
-        characterData: true
-      });
-      timerFunc = function () {
-        counter = (counter + 1) % 2;
-        textNode.data = String(counter);
-      };
-      isUsingMicroTask = true;
-    } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-      // Fallback to setImmediate.
-      // Techinically it leverages the (macro) task queue,
-      // but it is still a better choice than setTimeout.
-      timerFunc = function () {
-        setImmediate(flushCallbacks);
-      };
-    } else {
-      // Fallback to setTimeout.
-      timerFunc = function () {
-        setTimeout(flushCallbacks, 0);
-      };
-    }
-  
-    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;
-        timerFunc();
-      }
-      // $flow-disable-line
-      if (!cb && typeof Promise !== 'undefined') {
-        return new Promise(function (resolve) {
-          _resolve = resolve;
-        })
-      }
-    }
-  
-    /*  */
-  
-    var mark;
-    var measure;
-  
-    {
-      var perf = inBrowser && window.performance;
-      /* istanbul ignore if */
-      if (
-        perf &&
-        perf.mark &&
-        perf.measure &&
-        perf.clearMarks &&
-        perf.clearMeasures
-      ) {
-        mark = function (tag) { return perf.mark(tag); };
-        measure = function (name, startTag, endTag) {
-          perf.measure(name, startTag, endTag);
-          perf.clearMarks(startTag);
-          perf.clearMarks(endTag);
-          // perf.clearMeasures(name)
-        };
-      }
-    }
-  
-    /* not type checking this file because flow doesn't play well with Proxy */
-  
-    var initProxy;
-  
-    {
-      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 warnReservedPrefix = function (target, key) {
-        warn(
-          "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
-          'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-          'prevent conflicts with Vue internals' +
-          'See: https://vuejs.org/v2/api/#data',
-          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) ||
-            (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
-          if (!has && !isAllowed) {
-            if (key in target.$data) { warnReservedPrefix(target, key); }
-            else { warnNonPresent(target, key); }
-          }
-          return has || !isAllowed
-        }
-      };
-  
-      var getHandler = {
-        get: function get (target, key) {
-          if (typeof key === 'string' && !(key in target)) {
-            if (key in target.$data) { warnReservedPrefix(target, key); }
-            else { 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 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, vm) {
-      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++) {
-            invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
-          }
-        } else {
-          // return handler return value for single handlers
-          return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
-        }
-      }
-      invoker.fns = fns;
-      return invoker
-    }
-  
-    function updateListeners (
-      on,
-      oldOn,
-      add,
-      remove$$1,
-      createOnceHandler,
-      vm
-    ) {
-      var name, def$$1, cur, old, event;
-      for (name in on) {
-        def$$1 = cur = on[name];
-        old = oldOn[name];
-        event = normalizeEvent(name);
-        if (isUndef(cur)) {
-          warn(
-            "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-            vm
-          );
-        } else if (isUndef(old)) {
-          if (isUndef(cur.fns)) {
-            cur = on[name] = createFnInvoker(cur, vm);
-          }
-          if (isTrue(event.once)) {
-            cur = on[name] = createOnceHandler(event.name, cur, event.capture);
-          }
-          add(event.name, cur, event.capture, event.passive, event.params);
-        } else if (cur !== old) {
-          old.fns = cur;
-          on[name] = old;
-        }
-      }
-      for (name in oldOn) {
-        if (isUndef(on[name])) {
-          event = normalizeEvent(name);
-          remove$$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);
-          {
-            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 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 */
-          {
-            defineReactive$$1(vm, key, result[key], function () {
-              warn(
-                "Avoid mutating an injected value directly since the changes will be " +
-                "overwritten whenever the provided component re-renders. " +
-                "injection being mutated: \"" + key + "\"",
-                vm
-              );
-            });
-          }
-        });
-        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)
-          : Object.keys(inject);
-  
-        for (var i = 0; i < keys.length; i++) {
-          var key = keys[i];
-          // #6574 in case the inject object is observed...
-          if (key === '__ob__') { continue }
-          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 {
-              warn(("Injection \"" + key + "\" not found"), vm);
-            }
-          }
-        }
-        return result
-      }
-    }
-  
-    /*  */
-  
-  
-  
-    /**
-     * Runtime helper for resolving raw children VNodes into a slot object.
-     */
-    function resolveSlots (
-      children,
-      context
-    ) {
-      if (!children || !children.length) {
-        return {}
-      }
-      var 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 normalizeScopedSlots (
-      slots,
-      normalSlots,
-      prevSlots
-    ) {
-      var res;
-      var hasNormalSlots = Object.keys(normalSlots).length > 0;
-      var isStable = slots ? !!slots.$stable : !hasNormalSlots;
-      var key = slots && slots.$key;
-      if (!slots) {
-        res = {};
-      } else if (slots._normalized) {
-        // fast path 1: child component re-render only, parent did not change
-        return slots._normalized
-      } else if (
-        isStable &&
-        prevSlots &&
-        prevSlots !== emptyObject &&
-        key === prevSlots.$key &&
-        !hasNormalSlots &&
-        !prevSlots.$hasNormal
-      ) {
-        // fast path 2: stable scoped slots w/ no normal slots to proxy,
-        // only need to normalize once
-        return prevSlots
-      } else {
-        res = {};
-        for (var key$1 in slots) {
-          if (slots[key$1] && key$1[0] !== '$') {
-            res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
-          }
-        }
-      }
-      // expose normal slots on scopedSlots
-      for (var key$2 in normalSlots) {
-        if (!(key$2 in res)) {
-          res[key$2] = proxyNormalSlot(normalSlots, key$2);
-        }
-      }
-      // avoriaz seems to mock a non-extensible $scopedSlots object
-      // and when that is passed down this would cause an error
-      if (slots && Object.isExtensible(slots)) {
-        (slots)._normalized = res;
-      }
-      def(res, '$stable', isStable);
-      def(res, '$key', key);
-      def(res, '$hasNormal', hasNormalSlots);
-      return res
-    }
-  
-    function normalizeScopedSlot(normalSlots, key, fn) {
-      var normalized = function () {
-        var res = arguments.length ? fn.apply(null, arguments) : fn({});
-        res = res && typeof res === 'object' && !Array.isArray(res)
-          ? [res] // single vnode
-          : normalizeChildren(res);
-        return res && (
-          res.length === 0 ||
-          (res.length === 1 && res[0].isComment) // #9658
-        ) ? undefined
-          : res
-      };
-      // this is a slot using the new v-slot syntax without scope. although it is
-      // compiled as a scoped slot, render fn users would expect it to be present
-      // on this.$slots because the usage is semantically a normal slot.
-      if (fn.proxy) {
-        Object.defineProperty(normalSlots, key, {
-          get: normalized,
-          enumerable: true,
-          configurable: true
-        });
-      }
-      return normalized
-    }
-  
-    function proxyNormalSlot(slots, key) {
-      return function () { return slots[key]; }
-    }
-  
-    /*  */
-  
-    /**
-     * 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)) {
-        if (hasSymbol && val[Symbol.iterator]) {
-          ret = [];
-          var iterator = val[Symbol.iterator]();
-          var result = iterator.next();
-          while (!result.done) {
-            ret.push(render(result.value, ret.length));
-            result = iterator.next();
-          }
-        } else {
-          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 = [];
-      }
-      (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 (!isObject(bindObject)) {
-            warn(
-              'slot v-bind without argument expects an Object',
-              this
-            );
-          }
-          props = extend(extend({}, bindObject), props);
-        }
-        nodes = scopedSlotFn(props) || fallback;
-      } else {
-        nodes = this.$slots[name] || 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)) {
-          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 = {});
-            }
-            var camelizedKey = camelize(key);
-            var hyphenatedKey = hyphenate(key);
-            if (!(camelizedKey in hash) && !(hyphenatedKey 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)) {
-          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 resolveScopedSlots (
-      fns, // see flow/vnode
-      res,
-      // the following are added in 2.6
-      hasDynamicKeys,
-      contentHashKey
-    ) {
-      res = res || { $stable: !hasDynamicKeys };
-      for (var i = 0; i < fns.length; i++) {
-        var slot = fns[i];
-        if (Array.isArray(slot)) {
-          resolveScopedSlots(slot, res, hasDynamicKeys);
-        } else if (slot) {
-          // marker for reverse proxying v-slot without scope on this.$slots
-          if (slot.proxy) {
-            slot.fn.proxy = true;
-          }
-          res[slot.key] = slot.fn;
-        }
-      }
-      if (contentHashKey) {
-        (res).$key = contentHashKey;
-      }
-      return res
-    }
-  
-    /*  */
-  
-    function bindDynamicKeys (baseObj, values) {
-      for (var i = 0; i < values.length; i += 2) {
-        var key = values[i];
-        if (typeof key === 'string' && key) {
-          baseObj[values[i]] = values[i + 1];
-        } else if (key !== '' && key !== null) {
-          // null is a speical value for explicitly removing a binding
-          warn(
-            ("Invalid value for dynamic directive argument (expected string or null): " + key),
-            this
-          );
-        }
-      }
-      return baseObj
-    }
-  
-    // helper to dynamically append modifier runtime markers to event names.
-    // ensure only append when value is already string, otherwise it will be cast
-    // to string and cause the type check to miss.
-    function prependModifier (value, symbol) {
-      return typeof value === 'string' ? symbol + value : value
-    }
-  
-    /*  */
-  
-    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;
-      target._d = bindDynamicKeys;
-      target._p = prependModifier;
-    }
-  
-    /*  */
-  
-    function FunctionalRenderContext (
-      data,
-      props,
-      children,
-      parent,
-      Ctor
-    ) {
-      var this$1 = this;
-  
-      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 () {
-        if (!this$1.$slots) {
-          normalizeScopedSlots(
-            data.scopedSlots,
-            this$1.$slots = resolveSlots(children, parent)
-          );
-        }
-        return this$1.$slots
-      };
-  
-      Object.defineProperty(this, 'scopedSlots', ({
-        enumerable: true,
-        get: function get () {
-          return normalizeScopedSlots(data.scopedSlots, this.slots())
-        }
-      }));
-  
-      // 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 = normalizeScopedSlots(data.scopedSlots, this.$slots);
-      }
-  
-      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, renderContext)
-      } 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, renderContext);
-        }
-        return res
-      }
-    }
-  
-    function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-      // #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;
-      {
-        (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-      }
-      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];
-      }
-    }
-  
-    /*  */
-  
-    /*  */
-  
-    /*  */
-  
-    /*  */
-  
-    // inline hooks to be invoked on component VNodes during patch
-    var componentVNodeHooks = {
-      init: function init (vnode, hydrating) {
-        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
-          );
-          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') {
-        {
-          warn(("Invalid Component definition: " + (String(Ctor))), context);
-        }
-        return
-      }
-  
-      // async component
-      var asyncFactory;
-      if (isUndef(Ctor.cid)) {
-        asyncFactory = Ctor;
-        Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
-        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
-      );
-  
-      return vnode
-    }
-  
-    function createComponentInstanceForVnode (
-      vnode, // we know it's MountedComponentVNode but flow doesn't
-      parent // activeInstance in lifecycle state
-    ) {
-      var options = {
-        _isComponent: true,
-        _parentVnode: vnode,
-        parent: parent
-      };
-      // 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];
-        var existing = hooks[key];
-        var toMerge = componentVNodeHooks[key];
-        if (existing !== toMerge && !(existing && existing._merged)) {
-          hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-        }
-      }
-    }
-  
-    function mergeHook$1 (f1, f2) {
-      var merged = function (a, b) {
-        // flow complains about extra args which is why we use any
-        f1(a, b);
-        f2(a, b);
-      };
-      merged._merged = true;
-      return merged
-    }
-  
-    // 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.attrs || (data.attrs = {}))[prop] = data.model.value;
-      var on = data.on || (data.on = {});
-      var existing = on[event];
-      var callback = data.model.callback;
-      if (isDef(existing)) {
-        if (
-          Array.isArray(existing)
-            ? existing.indexOf(callback) === -1
-            : existing !== callback
-        ) {
-          on[event] = [callback].concat(existing);
-        }
-      } else {
-        on[event] = 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__)) {
-        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 (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 ((!data || !data.pre) && 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 */
-      {
-        defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-          !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-        }, true);
-        defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-          !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-        }, true);
-      }
-    }
-  
-    var currentRenderingInstance = null;
-  
-    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;
-  
-        if (_parentVnode) {
-          vm.$scopedSlots = normalizeScopedSlots(
-            _parentVnode.data.scopedSlots,
-            vm.$slots,
-            vm.$scopedSlots
-          );
-        }
-  
-        // 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 {
-          // There's no need to maintain a stack becaues all render fns are called
-          // separately from one another. Nested component's render fns are called
-          // when parent component is patched.
-          currentRenderingInstance = vm;
-          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 (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;
-          }
-        } finally {
-          currentRenderingInstance = null;
-        }
-        // if the returned array contains only a single node, allow it
-        if (Array.isArray(vnode) && vnode.length === 1) {
-          vnode = vnode[0];
-        }
-        // return empty vnode in case the render function errored out
-        if (!(vnode instanceof VNode)) {
-          if (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
-      };
-    }
-  
-    /*  */
-  
-    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
-    ) {
-      if (isTrue(factory.error) && isDef(factory.errorComp)) {
-        return factory.errorComp
-      }
-  
-      if (isDef(factory.resolved)) {
-        return factory.resolved
-      }
-  
-      var owner = currentRenderingInstance;
-      if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
-        // already pending
-        factory.owners.push(owner);
-      }
-  
-      if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-        return factory.loadingComp
-      }
-  
-      if (owner && !isDef(factory.owners)) {
-        var owners = factory.owners = [owner];
-        var sync = true;
-        var timerLoading = null;
-        var timerTimeout = null
-  
-        ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
-  
-        var forceRender = function (renderCompleted) {
-          for (var i = 0, l = owners.length; i < l; i++) {
-            (owners[i]).$forceUpdate();
-          }
-  
-          if (renderCompleted) {
-            owners.length = 0;
-            if (timerLoading !== null) {
-              clearTimeout(timerLoading);
-              timerLoading = null;
-            }
-            if (timerTimeout !== null) {
-              clearTimeout(timerTimeout);
-              timerTimeout = null;
-            }
-          }
-        };
-  
-        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(true);
-          } else {
-            owners.length = 0;
-          }
-        });
-  
-        var reject = once(function (reason) {
-          warn(
-            "Failed to resolve async component: " + (String(factory)) +
-            (reason ? ("\nReason: " + reason) : '')
-          );
-          if (isDef(factory.errorComp)) {
-            factory.error = true;
-            forceRender(true);
-          }
-        });
-  
-        var res = factory(resolve, reject);
-  
-        if (isObject(res)) {
-          if (isPromise(res)) {
-            // () => Promise
-            if (isUndef(factory.resolved)) {
-              res.then(resolve, reject);
-            }
-          } else if (isPromise(res.component)) {
-            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 {
-                timerLoading = setTimeout(function () {
-                  timerLoading = null;
-                  if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                    factory.loading = true;
-                    forceRender(false);
-                  }
-                }, res.delay || 200);
-              }
-            }
-  
-            if (isDef(res.timeout)) {
-              timerTimeout = setTimeout(function () {
-                timerTimeout = null;
-                if (isUndef(factory.resolved)) {
-                  reject(
-                    "timeout (" + (res.timeout) + "ms)"
-                  );
-                }
-              }, 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) {
-      target.$on(event, fn);
-    }
-  
-    function remove$1 (event, fn) {
-      target.$off(event, fn);
-    }
-  
-    function createOnceHandler (event, fn) {
-      var _target = target;
-      return function onceHandler () {
-        var res = fn.apply(null, arguments);
-        if (res !== null) {
-          _target.$off(event, onceHandler);
-        }
-      }
-    }
-  
-    function updateComponentListeners (
-      vm,
-      listeners,
-      oldListeners
-    ) {
-      target = vm;
-      updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-      target = undefined;
-    }
-  
-    function eventsMixin (Vue) {
-      var hookRE = /^hook:/;
-      Vue.prototype.$on = function (event, fn) {
-        var vm = this;
-        if (Array.isArray(event)) {
-          for (var i = 0, l = event.length; i < l; i++) {
-            vm.$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 vm = this;
-        // all
-        if (!arguments.length) {
-          vm._events = Object.create(null);
-          return vm
-        }
-        // array of events
-        if (Array.isArray(event)) {
-          for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-            vm.$off(event[i$1], fn);
-          }
-          return vm
-        }
-        // specific event
-        var cbs = vm._events[event];
-        if (!cbs) {
-          return vm
-        }
-        if (!fn) {
-          vm._events[event] = null;
-          return vm
-        }
-        // specific handler
-        var cb;
-        var i = cbs.length;
-        while (i--) {
-          cb = cbs[i];
-          if (cb === fn || cb.fn === fn) {
-            cbs.splice(i, 1);
-            break
-          }
-        }
-        return vm
-      };
-  
-      Vue.prototype.$emit = function (event) {
-        var vm = this;
-        {
-          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);
-          var info = "event handler for \"" + event + "\"";
-          for (var i = 0, l = cbs.length; i < l; i++) {
-            invokeWithErrorHandling(cbs[i], vm, args, vm, info);
-          }
-        }
-        return vm
-      };
-    }
-  
-    /*  */
-  
-    var activeInstance = null;
-    var isUpdatingChildComponent = false;
-  
-    function setActiveInstance(vm) {
-      var prevActiveInstance = activeInstance;
-      activeInstance = vm;
-      return function () {
-        activeInstance = prevActiveInstance;
-      }
-    }
-  
-    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;
-        var prevEl = vm.$el;
-        var prevVnode = vm._vnode;
-        var restoreActiveInstance = setActiveInstance(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 */);
-        } else {
-          // updates
-          vm.$el = vm.__patch__(prevVnode, vnode);
-        }
-        restoreActiveInstance();
-        // 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;
-        {
-          /* 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 (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, {
-        before: function before () {
-          if (vm._isMounted && !vm._isDestroyed) {
-            callHook(vm, 'beforeUpdate');
-          }
-        }
-      }, 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
-    ) {
-      {
-        isUpdatingChildComponent = true;
-      }
-  
-      // determine whether component has slot children
-      // we need to do this before overwriting $options._renderChildren.
-  
-      // check if there are dynamic scopedSlots (hand-written or compiled but with
-      // dynamic slot names). Static scoped slots compiled from template has the
-      // "$stable" marker.
-      var newScopedSlots = parentVnode.data.scopedSlots;
-      var oldScopedSlots = vm.$scopedSlots;
-      var hasDynamicScopedSlot = !!(
-        (newScopedSlots && !newScopedSlots.$stable) ||
-        (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
-        (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
-      );
-  
-      // Any static slot children from the parent may have changed during parent's
-      // update. Dynamic scoped slots may also have changed. In such cases, a forced
-      // update is necessary to ensure correctness.
-      var needsForceUpdate = !!(
-        renderChildren ||               // has new static slots
-        vm.$options._renderChildren ||  // has old static slots
-        hasDynamicScopedSlot
-      );
-  
-      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 (needsForceUpdate) {
-        vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-        vm.$forceUpdate();
-      }
-  
-      {
-        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];
-      var info = hook + " hook";
-      if (handlers) {
-        for (var i = 0, j = handlers.length; i < j; i++) {
-          invokeWithErrorHandling(handlers[i], vm, null, vm, info);
-        }
-      }
-      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 = {};
-      {
-        circular = {};
-      }
-      waiting = flushing = false;
-    }
-  
-    // Async edge case #6566 requires saving the timestamp when event listeners are
-    // attached. However, calling performance.now() has a perf overhead especially
-    // if the page has thousands of event listeners. Instead, we take a timestamp
-    // every time the scheduler flushes and use that for all event listeners
-    // attached during that flush.
-    var currentFlushTimestamp = 0;
-  
-    // Async edge case fix requires storing an event listener's attach timestamp.
-    var getNow = Date.now;
-  
-    // Determine what event timestamp the browser is using. Annoyingly, the
-    // timestamp can either be hi-res (relative to page load) or low-res
-    // (relative to UNIX epoch), so in order to compare time we have to use the
-    // same timestamp type when saving the flush timestamp.
-    // All IE versions use low-res event timestamps, and have problematic clock
-    // implementations (#9632)
-    if (inBrowser && !isIE) {
-      var performance = window.performance;
-      if (
-        performance &&
-        typeof performance.now === 'function' &&
-        getNow() > document.createEvent('Event').timeStamp
-      ) {
-        // if the event timestamp, although evaluated AFTER the Date.now(), is
-        // smaller than it, it means the event is using a hi-res timestamp,
-        // and we need to use the hi-res version for event listener timestamps as
-        // well.
-        getNow = function () { return performance.now(); };
-      }
-    }
-  
-    /**
-     * Flush both queues and run the watchers.
-     */
-    function flushSchedulerQueue () {
-      currentFlushTimestamp = getNow();
-      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];
-        if (watcher.before) {
-          watcher.before();
-        }
-        id = watcher.id;
-        has[id] = null;
-        watcher.run();
-        // in dev build, check and stop circular updates.
-        if (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 && !vm._isDestroyed) {
-          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;
-  
-          if (!config.async) {
-            flushSchedulerQueue();
-            return
-          }
-          nextTick(flushSchedulerQueue);
-        }
-      }
-    }
-  
-    /*  */
-  
-  
-  
-    var uid$2 = 0;
-  
-    /**
-     * A watcher parses an expression, collects dependencies,
-     * and fires callback when the expression value changes.
-     * This is used for both the $watch() api and directives.
-     */
-    var Watcher = function Watcher (
-      vm,
-      expOrFn,
-      cb,
-      options,
-      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;
-        this.before = options.before;
-      } else {
-        this.deep = this.user = this.lazy = this.sync = false;
-      }
-      this.cb = cb;
-      this.id = ++uid$2; // uid for batching
-      this.active = true;
-      this.dirty = this.lazy; // for lazy watchers
-      this.deps = [];
-      this.newDeps = [];
-      this.depIds = new _Set();
-      this.newDepIds = new _Set();
-      this.expression = expOrFn.toString();
-      // parse expression for getter
-      if (typeof expOrFn === 'function') {
-        this.getter = expOrFn;
-      } else {
-        this.getter = parsePath(expOrFn);
-        if (!this.getter) {
-          this.getter = noop;
-          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 i = this.deps.length;
-      while (i--) {
-        var dep = this.deps[i];
-        if (!this.newDepIds.has(dep.id)) {
-          dep.removeSub(this);
-        }
-      }
-      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 i = this.deps.length;
-      while (i--) {
-        this.deps[i].depend();
-      }
-    };
-  
-    /**
-     * Remove self from all dependencies' subscriber list.
-     */
-    Watcher.prototype.teardown = function teardown () {
-      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.deps[i].removeSub(this);
-        }
-        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 */
-        {
-          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$$1(props, key, value, function () {
-            if (!isRoot && !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
-              );
-            }
-          });
-        }
-        // 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.$options.data;
-      data = vm._data = typeof data === 'function'
-        ? getData(data, vm)
-        : data || {};
-      if (!isPlainObject(data)) {
-        data = {};
-        warn(
-          'data functions should return an object:\n' +
-          'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-          vm
-        );
-      }
-      // proxy data on instance
-      var keys = Object.keys(data);
-      var props = vm.$options.props;
-      var methods = vm.$options.methods;
-      var i = keys.length;
-      while (i--) {
-        var key = keys[i];
-        {
-          if (methods && hasOwn(methods, key)) {
-            warn(
-              ("Method \"" + key + "\" has already been defined as a data property."),
-              vm
-            );
-          }
-        }
-        if (props && hasOwn(props, key)) {
-          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) {
-      // $flow-disable-line
-      var watchers = vm._computedWatchers = Object.create(null);
-      // computed properties are just getters during SSR
-      var isSSR = isServerRendering();
-  
-      for (var key in computed) {
-        var userDef = computed[key];
-        var getter = typeof userDef === 'function' ? userDef : userDef.get;
-        if (getter == null) {
-          warn(
-            ("Getter is missing for computed property \"" + key + "\"."),
-            vm
-          );
-        }
-  
-        if (!isSSR) {
-          // create internal watcher for the computed property.
-          watchers[key] = new Watcher(
-            vm,
-            getter || noop,
-            noop,
-            computedWatcherOptions
-          );
-        }
-  
-        // component-defined computed properties are already defined on the
-        // component prototype. We only need to define computed properties defined
-        // at instantiation here.
-        if (!(key in vm)) {
-          defineComputed(vm, key, userDef);
-        } else {
-          if (key in vm.$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)
-          : createGetterInvoker(userDef);
-        sharedPropertyDefinition.set = noop;
-      } else {
-        sharedPropertyDefinition.get = userDef.get
-          ? shouldCache && userDef.cache !== false
-            ? createComputedGetter(key)
-            : createGetterInvoker(userDef.get)
-          : noop;
-        sharedPropertyDefinition.set = userDef.set || noop;
-      }
-      if (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 createGetterInvoker(fn) {
-      return function computedGetter () {
-        return fn.call(this, this)
-      }
-    }
-  
-    function initMethods (vm, methods) {
-      var props = vm.$options.props;
-      for (var key in methods) {
-        {
-          if (typeof methods[key] !== 'function') {
-            warn(
-              "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" 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 $."
-            );
-          }
-        }
-        vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-      }
-    }
-  
-    function initWatch (vm, watch) {
-      for (var key in watch) {
-        var handler = watch[key];
-        if (Array.isArray(handler)) {
-          for (var i = 0; i < handler.length; i++) {
-            createWatcher(vm, key, handler[i]);
-          }
-        } else {
-          createWatcher(vm, key, handler);
-        }
-      }
-    }
-  
-    function createWatcher (
-      vm,
-      expOrFn,
-      handler,
-      options
-    ) {
-      if (isPlainObject(handler)) {
-        options = handler;
-        handler = handler.handler;
-      }
-      if (typeof handler === 'string') {
-        handler = vm[handler];
-      }
-      return vm.$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 };
-      {
-        dataDef.set = function () {
-          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) {
-          try {
-            cb.call(vm, watcher.value);
-          } catch (error) {
-            handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
-          }
-        }
-        return function unwatchFn () {
-          watcher.teardown();
-        }
-      };
-    }
-  
-    /*  */
-  
-    var uid$3 = 0;
-  
-    function initMixin (Vue) {
-      Vue.prototype._init = function (options) {
-        var vm = this;
-        // a uid
-        vm._uid = uid$3++;
-  
-        var startTag, endTag;
-        /* istanbul ignore if */
-        if (config.performance && mark) {
-          startTag = "vue-perf-start:" + (vm._uid);
-          endTag = "vue-perf-end:" + (vm._uid);
-          mark(startTag);
-        }
-  
-        // a flag to avoid this being observed
-        vm._isVue = true;
-        // merge options
-        if (options && options._isComponent) {
-          // optimize internal component instantiation
-          // since dynamic options merging is pretty slow, and none of the
-          // internal component options needs special treatment.
-          initInternalComponent(vm, options);
-        } else {
-          vm.$options = mergeOptions(
-            resolveConstructorOptions(vm.constructor),
-            options || {},
-            vm
-          );
-        }
-        /* istanbul ignore else */
-        {
-          initProxy(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 (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;
-  
-      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 sealed = Ctor.sealedOptions;
-      for (var key in latest) {
-        if (latest[key] !== sealed[key]) {
-          if (!modified) { modified = {}; }
-          modified[key] = latest[key];
-        }
-      }
-      return modified
-    }
-  
-    function Vue (options) {
-      if (!(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 (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 (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 () {
-        for (var key in this.cache) {
-          pruneCacheEntry(this.cache, key, this.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; };
-      {
-        configDef.set = function () {
-          warn(
-            'Do not replace the Vue.config object, set individual fields instead.'
-          );
-        };
-      }
-      Object.defineProperty(Vue, 'config', configDef);
-  
-      // exposed util methods.
-      // NOTE: these are not considered part of the public API - avoid relying on
-      // them unless you are aware of the risk.
-      Vue.util = {
-        warn: warn,
-        extend: extend,
-        mergeOptions: mergeOptions,
-        defineReactive: defineReactive$$1
-      };
-  
-      Vue.set = set;
-      Vue.delete = del;
-      Vue.nextTick = nextTick;
-  
-      // 2.6 explicit observable API
-      Vue.observable = function (obj) {
-        observe(obj);
-        return obj
-      };
-  
-      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 = '2.6.10';
-  
-    /*  */
-  
-    // 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 isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
-  
-    var convertEnumeratedValue = function (key, value) {
-      return isFalsyAttrValue(value) || value === 'false'
-        ? 'false'
-        // allow arbitrary string value for contenteditable
-        : key === 'contenteditable' && isValidContentEditableValue(value)
-          ? value
-          : 'true'
-    };
-  
-    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 isPreTag = function (tag) { return tag === 'pre'; };
-  
-    var isReservedTag = function (tag) {
-      return isHTMLTag(tag) || isSVG(tag)
-    };
-  
-    function getTagNamespace (tag) {
-      if (isSVG(tag)) {
-        return 'svg'
-      }
-      // basic support for MathML
-      // note it doesn't support other MathML elements being component roots
-      if (tag === 'math') {
-        return 'math'
-      }
-    }
-  
-    var unknownElementCache = Object.create(null);
-    function isUnknownElement (tag) {
-      /* istanbul ignore if */
-      if (!inBrowser) {
-        return true
-      }
-      if (isReservedTag(tag)) {
-        return false
-      }
-      tag = tag.toLowerCase();
-      /* istanbul ignore if */
-      if (unknownElementCache[tag] != null) {
-        return unknownElementCache[tag]
-      }
-      var el = document.createElement(tag);
-      if (tag.indexOf('-') > -1) {
-        // http://stackoverflow.com/a/28210364/1070244
-        return (unknownElementCache[tag] = (
-          el.constructor === window.HTMLUnknownElement ||
-          el.constructor === window.HTMLElement
-        ))
-      } else {
-        return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
-      }
-    }
-  
-    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) {
-          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 = /*#__PURE__*/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$$1 () {
-          if (--remove$$1.listeners === 0) {
-            removeNode(childElm);
-          }
-        }
-        remove$$1.listeners = listeners;
-        return remove$$1
-      }
-  
-      function removeNode (el) {
-        var parent = nodeOps.parentNode(el);
-        // element may have already been removed due to v-html / v-text
-        if (isDef(parent)) {
-          nodeOps.removeChild(parent, el);
-        }
-      }
-  
-      function isUnknownElement$$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 (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 (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 */);
-          }
-          // 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);
-            insert(parentElm, vnode.elm, refElm);
-            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$$1)) {
-            if (nodeOps.parentNode(ref$$1) === parent) {
-              nodeOps.insertBefore(parent, elm, ref$$1);
-            }
-          } else {
-            nodeOps.appendChild(parent, elm);
-          }
-        }
-      }
-  
-      function createChildren (vnode, children, insertedVnodeQueue) {
-        if (Array.isArray(children)) {
-          {
-            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;
-  
-        {
-          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, newCh, newStartIdx);
-            oldStartVnode = oldCh[++oldStartIdx];
-            newStartVnode = newCh[++newStartIdx];
-          } else if (sameVnode(oldEndVnode, newEndVnode)) {
-            patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-            oldEndVnode = oldCh[--oldEndIdx];
-            newEndVnode = newCh[--newEndIdx];
-          } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-            patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-            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, newCh, newStartIdx);
-            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, newCh, newStartIdx);
-                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,
-        ownerArray,
-        index,
-        removeOnly
-      ) {
-        if (oldVnode === vnode) {
-          return
-        }
-  
-        if (isDef(vnode.elm) && isDef(ownerArray)) {
-          // clone reused vnode
-          vnode = ownerArray[index] = cloneVNode(vnode);
-        }
-  
-        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)) {
-            {
-              checkDuplicateKeys(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 (!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 (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 (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) {
-        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);
-        } else {
-          var isRealElement = isDef(oldVnode.nodeType);
-          if (!isRealElement && sameVnode(oldVnode, vnode)) {
-            // patch existing root node
-            patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, 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 {
-                  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 = 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,
-              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)) {
-              removeVnodes(parentElm, [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;
-          dir.oldArg = oldDir.arg;
-          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, convertEnumeratedValue(key, value));
-      } 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' && value !== '' && !el.__ieph
-        ) {
-          var blocker = function (e) {
-            e.stopImmediatePropagation();
-            el.removeEventListener('input', blocker);
-          };
-          el.addEventListener('input', blocker);
-          // $flow-disable-line
-          el.__ieph = true; /* IE placeholder patched */
-        }
-        el.setAttribute(key, value);
-      }
-    }
-  
-    var attrs = {
-      create: updateAttrs,
-      update: updateAttrs
-    };
-  
-    /*  */
-  
-    function updateClass (oldVnode, vnode) {
-      var el = vnode.elm;
-      var data = vnode.data;
-      var oldData = oldVnode.data;
-      if (
-        isUndef(data.staticClass) &&
-        isUndef(data.class) && (
-          isUndef(oldData) || (
-            isUndef(oldData.staticClass) &&
-            isUndef(oldData.class)
-          )
-        )
-      ) {
-        return
-      }
-  
-      var cls = genClassForVnode(vnode);
-  
-      // handle transition classes
-      var transitionClass = el._transitionClasses;
-      if (isDef(transitionClass)) {
-        cls = concat(cls, stringifyClass(transitionClass));
-      }
-  
-      // set the class
-      if (cls !== el._prevClass) {
-        el.setAttribute('class', cls);
-        el._prevClass = cls;
-      }
-    }
-  
-    var klass = {
-      create: updateClass,
-      update: updateClass
-    };
-  
-    /*  */
-  
-    var validDivisionCharRE = /[\w).+\-_$\]]/;
-  
-    function parseFilters (exp) {
-      var inSingle = false;
-      var inDouble = false;
-      var inTemplateString = false;
-      var inRegex = false;
-      var curly = 0;
-      var square = 0;
-      var paren = 0;
-      var lastFilterIndex = 0;
-      var c, prev, i, expression, filters;
-  
-      for (i = 0; i < exp.length; i++) {
-        prev = c;
-        c = exp.charCodeAt(i);
-        if (inSingle) {
-          if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
-        } else if (inDouble) {
-          if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
-        } else if (inTemplateString) {
-          if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
-        } else if (inRegex) {
-          if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
-        } else if (
-          c === 0x7C && // pipe
-          exp.charCodeAt(i + 1) !== 0x7C &&
-          exp.charCodeAt(i - 1) !== 0x7C &&
-          !curly && !square && !paren
-        ) {
-          if (expression === undefined) {
-            // first filter, end of expression
-            lastFilterIndex = i + 1;
-            expression = exp.slice(0, i).trim();
-          } else {
-            pushFilter();
-          }
-        } else {
-          switch (c) {
-            case 0x22: inDouble = true; break         // "
-            case 0x27: inSingle = true; break         // '
-            case 0x60: inTemplateString = true; break // `
-            case 0x28: paren++; break                 // (
-            case 0x29: paren--; break                 // )
-            case 0x5B: square++; break                // [
-            case 0x5D: square--; break                // ]
-            case 0x7B: curly++; break                 // {
-            case 0x7D: curly--; break                 // }
-          }
-          if (c === 0x2f) { // /
-            var j = i - 1;
-            var p = (void 0);
-            // find first non-whitespace prev char
-            for (; j >= 0; j--) {
-              p = exp.charAt(j);
-              if (p !== ' ') { break }
-            }
-            if (!p || !validDivisionCharRE.test(p)) {
-              inRegex = true;
-            }
-          }
-        }
-      }
-  
-      if (expression === undefined) {
-        expression = exp.slice(0, i).trim();
-      } else if (lastFilterIndex !== 0) {
-        pushFilter();
-      }
-  
-      function pushFilter () {
-        (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-        lastFilterIndex = i + 1;
-      }
-  
-      if (filters) {
-        for (i = 0; i < filters.length; i++) {
-          expression = wrapFilter(expression, filters[i]);
-        }
-      }
-  
-      return expression
-    }
-  
-    function wrapFilter (exp, filter) {
-      var i = filter.indexOf('(');
-      if (i < 0) {
-        // _f: resolveFilter
-        return ("_f(\"" + filter + "\")(" + exp + ")")
-      } else {
-        var name = filter.slice(0, i);
-        var args = filter.slice(i + 1);
-        return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
-      }
-    }
-  
-    /*  */
-  
-  
-  
-    /* eslint-disable no-unused-vars */
-    function baseWarn (msg, range) {
-      console.error(("[Vue compiler]: " + msg));
-    }
-    /* eslint-enable no-unused-vars */
-  
-    function pluckModuleFunction (
-      modules,
-      key
-    ) {
-      return modules
-        ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
-        : []
-    }
-  
-    function addProp (el, name, value, range, dynamic) {
-      (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
-      el.plain = false;
-    }
-  
-    function addAttr (el, name, value, range, dynamic) {
-      var attrs = dynamic
-        ? (el.dynamicAttrs || (el.dynamicAttrs = []))
-        : (el.attrs || (el.attrs = []));
-      attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
-      el.plain = false;
-    }
-  
-    // add a raw attr (use this in preTransforms)
-    function addRawAttr (el, name, value, range) {
-      el.attrsMap[name] = value;
-      el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
-    }
-  
-    function addDirective (
-      el,
-      name,
-      rawName,
-      value,
-      arg,
-      isDynamicArg,
-      modifiers,
-      range
-    ) {
-      (el.directives || (el.directives = [])).push(rangeSetItem({
-        name: name,
-        rawName: rawName,
-        value: value,
-        arg: arg,
-        isDynamicArg: isDynamicArg,
-        modifiers: modifiers
-      }, range));
-      el.plain = false;
-    }
-  
-    function prependModifierMarker (symbol, name, dynamic) {
-      return dynamic
-        ? ("_p(" + name + ",\"" + symbol + "\")")
-        : symbol + name // mark the event as captured
-    }
-  
-    function addHandler (
-      el,
-      name,
-      value,
-      modifiers,
-      important,
-      warn,
-      range,
-      dynamic
-    ) {
-      modifiers = modifiers || emptyObject;
-      // warn prevent and passive modifier
-      /* istanbul ignore if */
-      if (
-        warn &&
-        modifiers.prevent && modifiers.passive
-      ) {
-        warn(
-          'passive and prevent can\'t be used together. ' +
-          'Passive handler can\'t prevent default event.',
-          range
-        );
-      }
-  
-      // normalize click.right and click.middle since they don't actually fire
-      // this is technically browser-specific, but at least for now browsers are
-      // the only target envs that have right/middle clicks.
-      if (modifiers.right) {
-        if (dynamic) {
-          name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
-        } else if (name === 'click') {
-          name = 'contextmenu';
-          delete modifiers.right;
-        }
-      } else if (modifiers.middle) {
-        if (dynamic) {
-          name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
-        } else if (name === 'click') {
-          name = 'mouseup';
-        }
-      }
-  
-      // check capture modifier
-      if (modifiers.capture) {
-        delete modifiers.capture;
-        name = prependModifierMarker('!', name, dynamic);
-      }
-      if (modifiers.once) {
-        delete modifiers.once;
-        name = prependModifierMarker('~', name, dynamic);
-      }
-      /* istanbul ignore if */
-      if (modifiers.passive) {
-        delete modifiers.passive;
-        name = prependModifierMarker('&', name, dynamic);
-      }
-  
-      var events;
-      if (modifiers.native) {
-        delete modifiers.native;
-        events = el.nativeEvents || (el.nativeEvents = {});
-      } else {
-        events = el.events || (el.events = {});
-      }
-  
-      var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
-      if (modifiers !== emptyObject) {
-        newHandler.modifiers = modifiers;
-      }
-  
-      var handlers = events[name];
-      /* istanbul ignore if */
-      if (Array.isArray(handlers)) {
-        important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-      } else if (handlers) {
-        events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-      } else {
-        events[name] = newHandler;
-      }
-  
-      el.plain = false;
-    }
-  
-    function getRawBindingAttr (
-      el,
-      name
-    ) {
-      return el.rawAttrsMap[':' + name] ||
-        el.rawAttrsMap['v-bind:' + name] ||
-        el.rawAttrsMap[name]
-    }
-  
-    function getBindingAttr (
-      el,
-      name,
-      getStatic
-    ) {
-      var dynamicValue =
-        getAndRemoveAttr(el, ':' + name) ||
-        getAndRemoveAttr(el, 'v-bind:' + name);
-      if (dynamicValue != null) {
-        return parseFilters(dynamicValue)
-      } else if (getStatic !== false) {
-        var staticValue = getAndRemoveAttr(el, name);
-        if (staticValue != null) {
-          return JSON.stringify(staticValue)
-        }
-      }
-    }
-  
-    // 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.
-    function getAndRemoveAttr (
-      el,
-      name,
-      removeFromMap
-    ) {
-      var val;
-      if ((val = el.attrsMap[name]) != null) {
-        var list = el.attrsList;
-        for (var i = 0, l = list.length; i < l; i++) {
-          if (list[i].name === name) {
-            list.splice(i, 1);
-            break
-          }
-        }
-      }
-      if (removeFromMap) {
-        delete el.attrsMap[name];
-      }
-      return val
-    }
-  
-    function getAndRemoveAttrByRegex (
-      el,
-      name
-    ) {
-      var list = el.attrsList;
-      for (var i = 0, l = list.length; i < l; i++) {
-        var attr = list[i];
-        if (name.test(attr.name)) {
-          list.splice(i, 1);
-          return attr
-        }
-      }
-    }
-  
-    function rangeSetItem (
-      item,
-      range
-    ) {
-      if (range) {
-        if (range.start != null) {
-          item.start = range.start;
-        }
-        if (range.end != null) {
-          item.end = range.end;
-        }
-      }
-      return item
-    }
-  
-    /*  */
-  
-    /**
-     * Cross-platform code generation for component v-model
-     */
-    function genComponentModel (
-      el,
-      value,
-      modifiers
-    ) {
-      var ref = modifiers || {};
-      var number = ref.number;
-      var trim = ref.trim;
-  
-      var baseValueExpression = '$$v';
-      var valueExpression = baseValueExpression;
-      if (trim) {
-        valueExpression =
-          "(typeof " + baseValueExpression + " === 'string'" +
-          "? " + baseValueExpression + ".trim()" +
-          ": " + baseValueExpression + ")";
-      }
-      if (number) {
-        valueExpression = "_n(" + valueExpression + ")";
-      }
-      var assignment = genAssignmentCode(value, valueExpression);
-  
-      el.model = {
-        value: ("(" + value + ")"),
-        expression: JSON.stringify(value),
-        callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
-      };
-    }
-  
-    /**
-     * Cross-platform codegen helper for generating v-model value assignment code.
-     */
-    function genAssignmentCode (
-      value,
-      assignment
-    ) {
-      var res = parseModel(value);
-      if (res.key === null) {
-        return (value + "=" + assignment)
-      } else {
-        return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
-      }
-    }
-  
-    /**
-     * Parse a v-model expression into a base path and a final key segment.
-     * Handles both dot-path and possible square brackets.
-     *
-     * Possible cases:
-     *
-     * - test
-     * - test[key]
-     * - test[test1[key]]
-     * - test["a"][key]
-     * - xxx.test[a[a].test1[key]]
-     * - test.xxx.a["asa"][test1[key]]
-     *
-     */
-  
-    var len, str, chr, index$1, expressionPos, expressionEndPos;
-  
-  
-  
-    function parseModel (val) {
-      // Fix https://github.com/vuejs/vue/pull/7730
-      // allow v-model="obj.val " (trailing whitespace)
-      val = val.trim();
-      len = val.length;
-  
-      if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-        index$1 = val.lastIndexOf('.');
-        if (index$1 > -1) {
-          return {
-            exp: val.slice(0, index$1),
-            key: '"' + val.slice(index$1 + 1) + '"'
-          }
-        } else {
-          return {
-            exp: val,
-            key: null
-          }
-        }
-      }
-  
-      str = val;
-      index$1 = expressionPos = expressionEndPos = 0;
-  
-      while (!eof()) {
-        chr = next();
-        /* istanbul ignore if */
-        if (isStringStart(chr)) {
-          parseString(chr);
-        } else if (chr === 0x5B) {
-          parseBracket(chr);
-        }
-      }
-  
-      return {
-        exp: val.slice(0, expressionPos),
-        key: val.slice(expressionPos + 1, expressionEndPos)
-      }
-    }
-  
-    function next () {
-      return str.charCodeAt(++index$1)
-    }
-  
-    function eof () {
-      return index$1 >= len
-    }
-  
-    function isStringStart (chr) {
-      return chr === 0x22 || chr === 0x27
-    }
-  
-    function parseBracket (chr) {
-      var inBracket = 1;
-      expressionPos = index$1;
-      while (!eof()) {
-        chr = next();
-        if (isStringStart(chr)) {
-          parseString(chr);
-          continue
-        }
-        if (chr === 0x5B) { inBracket++; }
-        if (chr === 0x5D) { inBracket--; }
-        if (inBracket === 0) {
-          expressionEndPos = index$1;
-          break
-        }
-      }
-    }
-  
-    function parseString (chr) {
-      var stringQuote = chr;
-      while (!eof()) {
-        chr = next();
-        if (chr === stringQuote) {
-          break
-        }
-      }
-    }
-  
-    /*  */
-  
-    var warn$1;
-  
-    // in some cases, the event used has to be determined at runtime
-    // so we used some reserved tokens during compile.
-    var RANGE_TOKEN = '__r';
-    var CHECKBOX_RADIO_TOKEN = '__c';
-  
-    function model (
-      el,
-      dir,
-      _warn
-    ) {
-      warn$1 = _warn;
-      var value = dir.value;
-      var modifiers = dir.modifiers;
-      var tag = el.tag;
-      var type = el.attrsMap.type;
-  
-      {
-        // inputs with type="file" are read only and setting the input's
-        // value will throw an error.
-        if (tag === 'input' && type === 'file') {
-          warn$1(
-            "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-            "File inputs are read only. Use a v-on:change listener instead.",
-            el.rawAttrsMap['v-model']
-          );
-        }
-      }
-  
-      if (el.component) {
-        genComponentModel(el, value, modifiers);
-        // component v-model doesn't need extra runtime
-        return false
-      } else if (tag === 'select') {
-        genSelect(el, value, modifiers);
-      } else if (tag === 'input' && type === 'checkbox') {
-        genCheckboxModel(el, value, modifiers);
-      } else if (tag === 'input' && type === 'radio') {
-        genRadioModel(el, value, modifiers);
-      } else if (tag === 'input' || tag === 'textarea') {
-        genDefaultModel(el, value, modifiers);
-      } else if (!config.isReservedTag(tag)) {
-        genComponentModel(el, value, modifiers);
-        // component v-model doesn't need extra runtime
-        return false
-      } else {
-        warn$1(
-          "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-          "v-model is not supported on this element type. " +
-          'If you are working with contenteditable, it\'s recommended to ' +
-          'wrap a library dedicated for that purpose inside a custom component.',
-          el.rawAttrsMap['v-model']
-        );
-      }
-  
-      // ensure runtime directive metadata
-      return true
-    }
-  
-    function genCheckboxModel (
-      el,
-      value,
-      modifiers
-    ) {
-      var number = modifiers && modifiers.number;
-      var valueBinding = getBindingAttr(el, 'value') || 'null';
-      var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-      var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-      addProp(el, 'checked',
-        "Array.isArray(" + value + ")" +
-        "?_i(" + value + "," + valueBinding + ")>-1" + (
-          trueValueBinding === 'true'
-            ? (":(" + value + ")")
-            : (":_q(" + value + "," + trueValueBinding + ")")
-        )
-      );
-      addHandler(el, 'change',
-        "var $$a=" + value + "," +
-            '$$el=$event.target,' +
-            "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-        'if(Array.isArray($$a)){' +
-          "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-              '$$i=_i($$a,$$v);' +
-          "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
-          "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
-        "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-        null, true
-      );
-    }
-  
-    function genRadioModel (
-      el,
-      value,
-      modifiers
-    ) {
-      var number = modifiers && modifiers.number;
-      var valueBinding = getBindingAttr(el, 'value') || 'null';
-      valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-      addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-      addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
-    }
-  
-    function genSelect (
-      el,
-      value,
-      modifiers
-    ) {
-      var number = modifiers && modifiers.number;
-      var selectedVal = "Array.prototype.filter" +
-        ".call($event.target.options,function(o){return o.selected})" +
-        ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-        "return " + (number ? '_n(val)' : 'val') + "})";
-  
-      var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-      var code = "var $$selectedVal = " + selectedVal + ";";
-      code = code + " " + (genAssignmentCode(value, assignment));
-      addHandler(el, 'change', code, null, true);
-    }
-  
-    function genDefaultModel (
-      el,
-      value,
-      modifiers
-    ) {
-      var type = el.attrsMap.type;
-  
-      // warn if v-bind:value conflicts with v-model
-      // except for inputs with v-bind:type
-      {
-        var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-        var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-        if (value$1 && !typeBinding) {
-          var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-          warn$1(
-            binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-            'because the latter already expands to a value binding internally',
-            el.rawAttrsMap[binding]
-          );
-        }
-      }
-  
-      var ref = modifiers || {};
-      var lazy = ref.lazy;
-      var number = ref.number;
-      var trim = ref.trim;
-      var needCompositionGuard = !lazy && type !== 'range';
-      var event = lazy
-        ? 'change'
-        : type === 'range'
-          ? RANGE_TOKEN
-          : 'input';
-  
-      var valueExpression = '$event.target.value';
-      if (trim) {
-        valueExpression = "$event.target.value.trim()";
-      }
-      if (number) {
-        valueExpression = "_n(" + valueExpression + ")";
-      }
-  
-      var code = genAssignmentCode(value, valueExpression);
-      if (needCompositionGuard) {
-        code = "if($event.target.composing)return;" + code;
-      }
-  
-      addProp(el, 'value', ("(" + value + ")"));
-      addHandler(el, event, code, null, true);
-      if (trim || number) {
-        addHandler(el, 'blur', '$forceUpdate()');
-      }
-    }
-  
-    /*  */
-  
-    // normalize v-model event tokens that can only be determined at runtime.
-    // it's important to place the event as the first in the array because
-    // the whole point is ensuring the v-model callback gets called before
-    // user-attached handlers.
-    function normalizeEvents (on) {
-      /* 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$1 (event, handler, 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);
-        }
-      }
-    }
-  
-    // #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
-    // implementation and does not fire microtasks in between event propagation, so
-    // safe to exclude.
-    var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
-  
-    function add$1 (
-      name,
-      handler,
-      capture,
-      passive
-    ) {
-      // async edge case #6566: inner click event triggers patch, event handler
-      // attached to outer element during patch, and triggered again. This
-      // happens because browsers fire microtask ticks between event propagation.
-      // the solution is simple: we save the timestamp when a handler is attached,
-      // and the handler would only fire if the event passed to it was fired
-      // AFTER it was attached.
-      if (useMicrotaskFix) {
-        var attachedTimestamp = currentFlushTimestamp;
-        var original = handler;
-        handler = original._wrapper = function (e) {
-          if (
-            // no bubbling, should always fire.
-            // this is just a safety net in case event.timeStamp is unreliable in
-            // certain weird environments...
-            e.target === e.currentTarget ||
-            // event is fired after handler attachment
-            e.timeStamp >= attachedTimestamp ||
-            // bail for environments that have buggy event.timeStamp implementations
-            // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
-            // #9681 QtWebEngine event.timeStamp is negative value
-            e.timeStamp <= 0 ||
-            // #9448 bail if event is fired in another document in a multi-page
-            // electron/nw.js app, since event.timeStamp will be using a different
-            // starting reference
-            e.target.ownerDocument !== document
-          ) {
-            return original.apply(this, arguments)
-          }
-        };
-      }
-      target$1.addEventListener(
-        name,
-        handler,
-        supportsPassive
-          ? { capture: capture, passive: passive }
-          : capture
-      );
-    }
-  
-    function remove$2 (
-      name,
-      handler,
-      capture,
-      _target
-    ) {
-      (_target || target$1).removeEventListener(
-        name,
-        handler._wrapper || 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, createOnceHandler$1, vnode.context);
-      target$1 = undefined;
-    }
-  
-    var events = {
-      create: updateDOMListeners,
-      update: updateDOMListeners
-    };
-  
-    /*  */
-  
-    var svgContainer;
-  
-    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 (!(key in props)) {
-          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' && elm.tagName !== 'PROGRESS') {
-          // 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 if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
-          // IE doesn't support innerHTML for SVG elements
-          svgContainer = svgContainer || document.createElement('div');
-          svgContainer.innerHTML = "<svg>" + cur + "</svg>";
-          var svg = svgContainer.firstChild;
-          while (elm.firstChild) {
-            elm.removeChild(elm.firstChild);
-          }
-          while (svg.firstChild) {
-            elm.appendChild(svg.firstChild);
-          }
-        } else if (
-          // skip the update if old and new VDOM state is the same.
-          // `value` is handled separately because the DOM value may be temporarily
-          // out of sync with VDOM state due to focus, composition and modifiers.
-          // This  #4521 by skipping the unnecesarry `checked` update.
-          cur !== oldProps[key]
-        ) {
-          // some property updates can throw
-          // e.g. `value` on <progress> w/ non-finite value
-          try {
-            elm[key] = cur;
-          } catch (e) {}
-        }
-      }
-    }
-  
-    // 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.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(hyphenate(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
-    };
-  
-    /*  */
-  
-    var whitespaceRE = /\s+/;
-  
-    /**
-     * 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(whitespaceRE).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(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
-        } else {
-          el.classList.remove(cls);
-        }
-        if (!el.classList.length) {
-          el.removeAttribute('class');
-        }
-      } else {
-        var cur = " " + (el.getAttribute('class') || '') + " ";
-        var tar = ' ' + cls + ' ';
-        while (cur.indexOf(tar) >= 0) {
-          cur = cur.replace(tar, ' ');
-        }
-        cur = cur.trim();
-        if (cur) {
-          el.setAttribute('class', cur);
-        } else {
-          el.removeAttribute('class');
-        }
-      }
-    }
-  
-    /*  */
-  
-    function resolveTransition (def$$1) {
-      if (!def$$1) {
-        return
-      }
-      /* istanbul ignore else */
-      if (typeof def$$1 === 'object') {
-        var res = {};
-        if (def$$1.css !== false) {
-          extend(res, autoCssTransition(def$$1.name || 'v'));
-        }
-        extend(res, def$$1);
-        return res
-      } else if (typeof def$$1 === 'string') {
-        return autoCssTransition(def$$1)
-      }
-    }
-  
-    var autoCssTransition = cached(function (name) {
-      return {
-        enterClass: (name + "-enter"),
-        enterToClass: (name + "-enter-to"),
-        enterActiveClass: (name + "-enter-active"),
-        leaveClass: (name + "-leave"),
-        leaveToClass: (name + "-leave-to"),
-        leaveActiveClass: (name + "-leave-active")
-      }
-    });
-  
-    var hasTransition = inBrowser && !isIE9;
-    var TRANSITION = 'transition';
-    var ANIMATION = 'animation';
-  
-    // Transition property/event sniffing
-    var transitionProp = 'transition';
-    var transitionEndEvent = 'transitionend';
-    var animationProp = 'animation';
-    var animationEndEvent = 'animationend';
-    if (hasTransition) {
-      /* istanbul ignore if */
-      if (window.ontransitionend === undefined &&
-        window.onwebkittransitionend !== undefined
-      ) {
-        transitionProp = 'WebkitTransition';
-        transitionEndEvent = 'webkitTransitionEnd';
-      }
-      if (window.onanimationend === undefined &&
-        window.onwebkitanimationend !== undefined
-      ) {
-        animationProp = 'WebkitAnimation';
-        animationEndEvent = 'webkitAnimationEnd';
-      }
-    }
-  
-    // binding to window is necessary to make hot reload work in IE in strict mode
-    var raf = inBrowser
-      ? window.requestAnimationFrame
-        ? window.requestAnimationFrame.bind(window)
-        : setTimeout
-      : /* 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);
-      // JSDOM may return undefined for transition properties
-      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])
-      }))
-    }
-  
-    // Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
-    // in a locale-dependent way, using a comma instead of a dot.
-    // If comma is not replaced with a dot, the input will be rounded down (i.e. acting
-    // as a floor function) causing unexpected behaviors
-    function toMs (s) {
-      return Number(s.slice(0, -1).replace(',', '.')) * 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) {
-        context = transitionNode.context;
-        transitionNode = transitionNode.parent;
-      }
-  
-      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 (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 (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) {
-          (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)) {
-        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
-    };
-  
-    /*  */
-  
-    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 isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
-  
-    var isVShowDirective = function (d) { return d.name === 'show'; };
-  
-    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(isNotTextNode);
-        /* istanbul ignore if */
-        if (!children.length) {
-          return
-        }
-  
-        // warn multiple elements
-        if (children.length > 1) {
-          warn(
-            '<transition> can only be used on a single element. Use ' +
-            '<transition-group> for lists.',
-            this.$parent
-          );
-        }
-  
-        var mode = this.mode;
-  
-        // warn invalid mode
-        if (mode && mode !== 'in-out' && mode !== 'out-in'
-        ) {
-          warn(
-            'invalid <transition> mode: ' + mode,
-            this.$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(isVShowDirective)) {
-          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
-      }
-    };
-  
-    /*  */
-  
-    var props = extend({
-      tag: String,
-      moveClass: String
-    }, transitionProps);
-  
-    delete props.mode;
-  
-    var TransitionGroup = {
-      props: props,
-  
-      beforeMount: function beforeMount () {
-        var this$1 = this;
-  
-        var update = this._update;
-        this._update = function (vnode, hydrating) {
-          var restoreActiveInstance = setActiveInstance(this$1);
-          // force removing pass
-          this$1.__patch__(
-            this$1._vnode,
-            this$1.kept,
-            false, // hydrating
-            true // removeOnly (!important, avoids unnecessary moves)
-          );
-          this$1._vnode = this$1.kept;
-          restoreActiveInstance();
-          update.call(this$1, vnode, hydrating);
-        };
-      },
-  
-      render: function render (h) {
-        var tag = this.tag || this.$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 {
-              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)
-      },
-  
-      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
-        // $flow-disable-line
-        this._reflow = document.body.offsetHeight;
-  
-        children.forEach(function (c) {
-          if (c.data.moved) {
-            var el = c.elm;
-            var s = el.style;
-            addTransitionClass(el, moveClass);
-            s.transform = s.WebkitTransform = s.transitionDuration = '';
-            el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-              if (e && e.target !== el) {
-                return
-              }
-              if (!e || /transform$/.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.$mount = function (
-      el,
-      hydrating
-    ) {
-      el = el && inBrowser ? query(el) : undefined;
-      return mountComponent(this, el, hydrating)
-    };
-  
-    // devtools global hook
-    /* istanbul ignore next */
-    if (inBrowser) {
-      setTimeout(function () {
-        if (config.devtools) {
-          if (devtools) {
-            devtools.emit('init', Vue);
-          } else {
-            console[console.info ? 'info' : 'log'](
-              'Download the Vue Devtools extension for a better development experience:\n' +
-              'https://github.com/vuejs/vue-devtools'
-            );
-          }
-        }
-        if (config.productionTip !== false &&
-          typeof console !== 'undefined'
-        ) {
-          console[console.info ? 'info' : 'log'](
-            "You are running Vue in development mode.\n" +
-            "Make sure to turn on production mode when deploying for production.\n" +
-            "See more tips at https://vuejs.org/guide/deployment.html"
-          );
-        }
-      }, 0);
-    }
-  
-    /*  */
-  
-    var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
-    var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-  
-    var buildRegex = cached(function (delimiters) {
-      var open = delimiters[0].replace(regexEscapeRE, '\\$&');
-      var close = delimiters[1].replace(regexEscapeRE, '\\$&');
-      return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
-    });
-  
-  
-  
-    function parseText (
-      text,
-      delimiters
-    ) {
-      var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-      if (!tagRE.test(text)) {
-        return
-      }
-      var tokens = [];
-      var rawTokens = [];
-      var lastIndex = tagRE.lastIndex = 0;
-      var match, index, tokenValue;
-      while ((match = tagRE.exec(text))) {
-        index = match.index;
-        // push text token
-        if (index > lastIndex) {
-          rawTokens.push(tokenValue = text.slice(lastIndex, index));
-          tokens.push(JSON.stringify(tokenValue));
-        }
-        // tag token
-        var exp = parseFilters(match[1].trim());
-        tokens.push(("_s(" + exp + ")"));
-        rawTokens.push({ '@binding': exp });
-        lastIndex = index + match[0].length;
-      }
-      if (lastIndex < text.length) {
-        rawTokens.push(tokenValue = text.slice(lastIndex));
-        tokens.push(JSON.stringify(tokenValue));
-      }
-      return {
-        expression: tokens.join('+'),
-        tokens: rawTokens
-      }
-    }
-  
-    /*  */
-  
-    function transformNode (el, options) {
-      var warn = options.warn || baseWarn;
-      var staticClass = getAndRemoveAttr(el, 'class');
-      if (staticClass) {
-        var res = parseText(staticClass, options.delimiters);
-        if (res) {
-          warn(
-            "class=\"" + staticClass + "\": " +
-            'Interpolation inside attributes has been removed. ' +
-            'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div class="{{ val }}">, use <div :class="val">.',
-            el.rawAttrsMap['class']
-          );
-        }
-      }
-      if (staticClass) {
-        el.staticClass = JSON.stringify(staticClass);
-      }
-      var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-      if (classBinding) {
-        el.classBinding = classBinding;
-      }
-    }
-  
-    function genData (el) {
-      var data = '';
-      if (el.staticClass) {
-        data += "staticClass:" + (el.staticClass) + ",";
-      }
-      if (el.classBinding) {
-        data += "class:" + (el.classBinding) + ",";
-      }
-      return data
-    }
-  
-    var klass$1 = {
-      staticKeys: ['staticClass'],
-      transformNode: transformNode,
-      genData: genData
-    };
-  
-    /*  */
-  
-    function transformNode$1 (el, options) {
-      var warn = options.warn || baseWarn;
-      var staticStyle = getAndRemoveAttr(el, 'style');
-      if (staticStyle) {
-        /* istanbul ignore if */
-        {
-          var res = parseText(staticStyle, options.delimiters);
-          if (res) {
-            warn(
-              "style=\"" + staticStyle + "\": " +
-              'Interpolation inside attributes has been removed. ' +
-              'Use v-bind or the colon shorthand instead. For example, ' +
-              'instead of <div style="{{ val }}">, use <div :style="val">.',
-              el.rawAttrsMap['style']
-            );
-          }
-        }
-        el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
-      }
-  
-      var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-      if (styleBinding) {
-        el.styleBinding = styleBinding;
-      }
-    }
-  
-    function genData$1 (el) {
-      var data = '';
-      if (el.staticStyle) {
-        data += "staticStyle:" + (el.staticStyle) + ",";
-      }
-      if (el.styleBinding) {
-        data += "style:(" + (el.styleBinding) + "),";
-      }
-      return data
-    }
-  
-    var style$1 = {
-      staticKeys: ['staticStyle'],
-      transformNode: transformNode$1,
-      genData: genData$1
-    };
-  
-    /*  */
-  
-    var decoder;
-  
-    var he = {
-      decode: function decode (html) {
-        decoder = decoder || document.createElement('div');
-        decoder.innerHTML = html;
-        return decoder.textContent
-      }
-    };
-  
-    /*  */
-  
-    var isUnaryTag = makeMap(
-      'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
-      'link,meta,param,source,track,wbr'
-    );
-  
-    // Elements that you can, intentionally, leave open
-    // (and which close themselves)
-    var canBeLeftOpenTag = makeMap(
-      'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
-    );
-  
-    // HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-    // Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-    var isNonPhrasingTag = makeMap(
-      'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
-      'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
-      'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
-      'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
-      'title,tr,track'
-    );
-  
-    /**
-     * Not type-checking this file because it's mostly vendor code.
-     */
-  
-    // Regular Expressions for parsing tags and attributes
-    var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-    var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-    var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
-    var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
-    var startTagOpen = new RegExp(("^<" + qnameCapture));
-    var startTagClose = /^\s*(\/?)>/;
-    var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
-    var doctype = /^<!DOCTYPE [^>]+>/i;
-    // #7298: escape - to avoid being pased as HTML comment when inlined in page
-    var comment = /^<!\--/;
-    var conditionalComment = /^<!\[/;
-  
-    // Special Elements (can contain anything)
-    var isPlainTextElement = makeMap('script,style,textarea', true);
-    var reCache = {};
-  
-    var decodingMap = {
-      '&lt;': '<',
-      '&gt;': '>',
-      '&quot;': '"',
-      '&amp;': '&',
-      '&#10;': '\n',
-      '&#9;': '\t',
-      '&#39;': "'"
-    };
-    var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
-    var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
-  
-    // #5992
-    var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-    var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
-  
-    function decodeAttr (value, shouldDecodeNewlines) {
-      var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-      return value.replace(re, function (match) { return decodingMap[match]; })
-    }
-  
-    function parseHTML (html, options) {
-      var stack = [];
-      var expectHTML = options.expectHTML;
-      var isUnaryTag$$1 = options.isUnaryTag || no;
-      var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-      var index = 0;
-      var last, lastTag;
-      while (html) {
-        last = html;
-        // Make sure we're not in a plaintext content element like script/style
-        if (!lastTag || !isPlainTextElement(lastTag)) {
-          var textEnd = html.indexOf('<');
-          if (textEnd === 0) {
-            // Comment:
-            if (comment.test(html)) {
-              var commentEnd = html.indexOf('-->');
-  
-              if (commentEnd >= 0) {
-                if (options.shouldKeepComment) {
-                  options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
-                }
-                advance(commentEnd + 3);
-                continue
-              }
-            }
-  
-            // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-            if (conditionalComment.test(html)) {
-              var conditionalEnd = html.indexOf(']>');
-  
-              if (conditionalEnd >= 0) {
-                advance(conditionalEnd + 2);
-                continue
-              }
-            }
-  
-            // Doctype:
-            var doctypeMatch = html.match(doctype);
-            if (doctypeMatch) {
-              advance(doctypeMatch[0].length);
-              continue
-            }
-  
-            // End tag:
-            var endTagMatch = html.match(endTag);
-            if (endTagMatch) {
-              var curIndex = index;
-              advance(endTagMatch[0].length);
-              parseEndTag(endTagMatch[1], curIndex, index);
-              continue
-            }
-  
-            // Start tag:
-            var startTagMatch = parseStartTag();
-            if (startTagMatch) {
-              handleStartTag(startTagMatch);
-              if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
-                advance(1);
-              }
-              continue
-            }
-          }
-  
-          var text = (void 0), rest = (void 0), next = (void 0);
-          if (textEnd >= 0) {
-            rest = html.slice(textEnd);
-            while (
-              !endTag.test(rest) &&
-              !startTagOpen.test(rest) &&
-              !comment.test(rest) &&
-              !conditionalComment.test(rest)
-            ) {
-              // < in plain text, be forgiving and treat it as text
-              next = rest.indexOf('<', 1);
-              if (next < 0) { break }
-              textEnd += next;
-              rest = html.slice(textEnd);
-            }
-            text = html.substring(0, textEnd);
-          }
-  
-          if (textEnd < 0) {
-            text = html;
-          }
-  
-          if (text) {
-            advance(text.length);
-          }
-  
-          if (options.chars && text) {
-            options.chars(text, index - text.length, index);
-          }
-        } else {
-          var endTagLength = 0;
-          var stackedTag = lastTag.toLowerCase();
-          var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-          var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
-            endTagLength = endTag.length;
-            if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-              text = text
-                .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
-                .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-            }
-            if (shouldIgnoreFirstNewline(stackedTag, text)) {
-              text = text.slice(1);
-            }
-            if (options.chars) {
-              options.chars(text);
-            }
-            return ''
-          });
-          index += html.length - rest$1.length;
-          html = rest$1;
-          parseEndTag(stackedTag, index - endTagLength, index);
-        }
-  
-        if (html === last) {
-          options.chars && options.chars(html);
-          if (!stack.length && options.warn) {
-            options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
-          }
-          break
-        }
-      }
-  
-      // Clean up any remaining tags
-      parseEndTag();
-  
-      function advance (n) {
-        index += n;
-        html = html.substring(n);
-      }
-  
-      function parseStartTag () {
-        var start = html.match(startTagOpen);
-        if (start) {
-          var match = {
-            tagName: start[1],
-            attrs: [],
-            start: index
-          };
-          advance(start[0].length);
-          var end, attr;
-          while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
-            attr.start = index;
-            advance(attr[0].length);
-            attr.end = index;
-            match.attrs.push(attr);
-          }
-          if (end) {
-            match.unarySlash = end[1];
-            advance(end[0].length);
-            match.end = index;
-            return match
-          }
-        }
-      }
-  
-      function handleStartTag (match) {
-        var tagName = match.tagName;
-        var unarySlash = match.unarySlash;
-  
-        if (expectHTML) {
-          if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-            parseEndTag(lastTag);
-          }
-          if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-            parseEndTag(tagName);
-          }
-        }
-  
-        var unary = isUnaryTag$$1(tagName) || !!unarySlash;
-  
-        var l = match.attrs.length;
-        var attrs = new Array(l);
-        for (var i = 0; i < l; i++) {
-          var args = match.attrs[i];
-          var value = args[3] || args[4] || args[5] || '';
-          var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
-            ? options.shouldDecodeNewlinesForHref
-            : options.shouldDecodeNewlines;
-          attrs[i] = {
-            name: args[1],
-            value: decodeAttr(value, shouldDecodeNewlines)
-          };
-          if (options.outputSourceRange) {
-            attrs[i].start = args.start + args[0].match(/^\s*/).length;
-            attrs[i].end = args.end;
-          }
-        }
-  
-        if (!unary) {
-          stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
-          lastTag = tagName;
-        }
-  
-        if (options.start) {
-          options.start(tagName, attrs, unary, match.start, match.end);
-        }
-      }
-  
-      function parseEndTag (tagName, start, end) {
-        var pos, lowerCasedTagName;
-        if (start == null) { start = index; }
-        if (end == null) { end = index; }
-  
-        // Find the closest opened tag of the same type
-        if (tagName) {
-          lowerCasedTagName = tagName.toLowerCase();
-          for (pos = stack.length - 1; pos >= 0; pos--) {
-            if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-              break
-            }
-          }
-        } else {
-          // If no tag name is provided, clean shop
-          pos = 0;
-        }
-  
-        if (pos >= 0) {
-          // Close all the open elements, up the stack
-          for (var i = stack.length - 1; i >= pos; i--) {
-            if (i > pos || !tagName &&
-              options.warn
-            ) {
-              options.warn(
-                ("tag <" + (stack[i].tag) + "> has no matching end tag."),
-                { start: stack[i].start, end: stack[i].end }
-              );
-            }
-            if (options.end) {
-              options.end(stack[i].tag, start, end);
-            }
-          }
-  
-          // Remove the open elements from the stack
-          stack.length = pos;
-          lastTag = pos && stack[pos - 1].tag;
-        } else if (lowerCasedTagName === 'br') {
-          if (options.start) {
-            options.start(tagName, [], true, start, end);
-          }
-        } else if (lowerCasedTagName === 'p') {
-          if (options.start) {
-            options.start(tagName, [], false, start, end);
-          }
-          if (options.end) {
-            options.end(tagName, start, end);
-          }
-        }
-      }
-    }
-  
-    /*  */
-  
-    var onRE = /^@|^v-on:/;
-    var dirRE = /^v-|^@|^:/;
-    var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
-    var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
-    var stripParensRE = /^\(|\)$/g;
-    var dynamicArgRE = /^\[.*\]$/;
-  
-    var argRE = /:(.*)$/;
-    var bindRE = /^:|^\.|^v-bind:/;
-    var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
-  
-    var slotRE = /^v-slot(:|$)|^#/;
-  
-    var lineBreakRE = /[\r\n]/;
-    var whitespaceRE$1 = /\s+/g;
-  
-    var invalidAttributeRE = /[\s"'<>\/=]/;
-  
-    var decodeHTMLCached = cached(he.decode);
-  
-    var emptySlotScopeToken = "_empty_";
-  
-    // configurable state
-    var warn$2;
-    var delimiters;
-    var transforms;
-    var preTransforms;
-    var postTransforms;
-    var platformIsPreTag;
-    var platformMustUseProp;
-    var platformGetTagNamespace;
-    var maybeComponent;
-  
-    function createASTElement (
-      tag,
-      attrs,
-      parent
-    ) {
-      return {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        rawAttrsMap: {},
-        parent: parent,
-        children: []
-      }
-    }
-  
-    /**
-     * Convert HTML string to AST.
-     */
-    function parse (
-      template,
-      options
-    ) {
-      warn$2 = options.warn || baseWarn;
-  
-      platformIsPreTag = options.isPreTag || no;
-      platformMustUseProp = options.mustUseProp || no;
-      platformGetTagNamespace = options.getTagNamespace || no;
-      var isReservedTag = options.isReservedTag || no;
-      maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
-  
-      transforms = pluckModuleFunction(options.modules, 'transformNode');
-      preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-      postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-  
-      delimiters = options.delimiters;
-  
-      var stack = [];
-      var preserveWhitespace = options.preserveWhitespace !== false;
-      var whitespaceOption = options.whitespace;
-      var root;
-      var currentParent;
-      var inVPre = false;
-      var inPre = false;
-      var warned = false;
-  
-      function warnOnce (msg, range) {
-        if (!warned) {
-          warned = true;
-          warn$2(msg, range);
-        }
-      }
-  
-      function closeElement (element) {
-        trimEndingWhitespace(element);
-        if (!inVPre && !element.processed) {
-          element = processElement(element, options);
-        }
-        // tree management
-        if (!stack.length && element !== root) {
-          // allow root elements with v-if, v-else-if and v-else
-          if (root.if && (element.elseif || element.else)) {
-            {
-              checkRootConstraints(element);
-            }
-            addIfCondition(root, {
-              exp: element.elseif,
-              block: element
-            });
-          } else {
-            warnOnce(
-              "Component template should contain exactly one root element. " +
-              "If you are using v-if on multiple elements, " +
-              "use v-else-if to chain them instead.",
-              { start: element.start }
-            );
-          }
-        }
-        if (currentParent && !element.forbidden) {
-          if (element.elseif || element.else) {
-            processIfConditions(element, currentParent);
-          } else {
-            if (element.slotScope) {
-              // scoped slot
-              // keep it in the children list so that v-else(-if) conditions can
-              // find it as the prev node.
-              var name = element.slotTarget || '"default"'
-              ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-            }
-            currentParent.children.push(element);
-            element.parent = currentParent;
-          }
-        }
-  
-        // final children cleanup
-        // filter out scoped slots
-        element.children = element.children.filter(function (c) { return !(c).slotScope; });
-        // remove trailing whitespace node again
-        trimEndingWhitespace(element);
-  
-        // check pre state
-        if (element.pre) {
-          inVPre = false;
-        }
-        if (platformIsPreTag(element.tag)) {
-          inPre = false;
-        }
-        // apply post-transforms
-        for (var i = 0; i < postTransforms.length; i++) {
-          postTransforms[i](element, options);
-        }
-      }
-  
-      function trimEndingWhitespace (el) {
-        // remove trailing whitespace node
-        if (!inPre) {
-          var lastNode;
-          while (
-            (lastNode = el.children[el.children.length - 1]) &&
-            lastNode.type === 3 &&
-            lastNode.text === ' '
-          ) {
-            el.children.pop();
-          }
-        }
-      }
-  
-      function checkRootConstraints (el) {
-        if (el.tag === 'slot' || el.tag === 'template') {
-          warnOnce(
-            "Cannot use <" + (el.tag) + "> as component root element because it may " +
-            'contain multiple nodes.',
-            { start: el.start }
-          );
-        }
-        if (el.attrsMap.hasOwnProperty('v-for')) {
-          warnOnce(
-            'Cannot use v-for on stateful component root element because ' +
-            'it renders multiple elements.',
-            el.rawAttrsMap['v-for']
-          );
-        }
-      }
-  
-      parseHTML(template, {
-        warn: warn$2,
-        expectHTML: options.expectHTML,
-        isUnaryTag: options.isUnaryTag,
-        canBeLeftOpenTag: options.canBeLeftOpenTag,
-        shouldDecodeNewlines: options.shouldDecodeNewlines,
-        shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
-        shouldKeepComment: options.comments,
-        outputSourceRange: options.outputSourceRange,
-        start: function start (tag, attrs, unary, start$1, end) {
-          // check namespace.
-          // inherit parent ns if there is one
-          var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
-  
-          // handle IE svg bug
-          /* istanbul ignore if */
-          if (isIE && ns === 'svg') {
-            attrs = guardIESVGBug(attrs);
-          }
-  
-          var element = createASTElement(tag, attrs, currentParent);
-          if (ns) {
-            element.ns = ns;
-          }
-  
-          {
-            if (options.outputSourceRange) {
-              element.start = start$1;
-              element.end = end;
-              element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
-                cumulated[attr.name] = attr;
-                return cumulated
-              }, {});
-            }
-            attrs.forEach(function (attr) {
-              if (invalidAttributeRE.test(attr.name)) {
-                warn$2(
-                  "Invalid dynamic argument expression: attribute names cannot contain " +
-                  "spaces, quotes, <, >, / or =.",
-                  {
-                    start: attr.start + attr.name.indexOf("["),
-                    end: attr.start + attr.name.length
-                  }
-                );
-              }
-            });
-          }
-  
-          if (isForbiddenTag(element) && !isServerRendering()) {
-            element.forbidden = true;
-            warn$2(
-              'Templates should only be responsible for mapping the state to the ' +
-              'UI. Avoid placing tags with side-effects in your templates, such as ' +
-              "<" + tag + ">" + ', as they will not be parsed.',
-              { start: element.start }
-            );
-          }
-  
-          // apply pre-transforms
-          for (var i = 0; i < preTransforms.length; i++) {
-            element = preTransforms[i](element, options) || element;
-          }
-  
-          if (!inVPre) {
-            processPre(element);
-            if (element.pre) {
-              inVPre = true;
-            }
-          }
-          if (platformIsPreTag(element.tag)) {
-            inPre = true;
-          }
-          if (inVPre) {
-            processRawAttrs(element);
-          } else if (!element.processed) {
-            // structural directives
-            processFor(element);
-            processIf(element);
-            processOnce(element);
-          }
-  
-          if (!root) {
-            root = element;
-            {
-              checkRootConstraints(root);
-            }
-          }
-  
-          if (!unary) {
-            currentParent = element;
-            stack.push(element);
-          } else {
-            closeElement(element);
-          }
-        },
-  
-        end: function end (tag, start, end$1) {
-          var element = stack[stack.length - 1];
-          // pop stack
-          stack.length -= 1;
-          currentParent = stack[stack.length - 1];
-          if (options.outputSourceRange) {
-            element.end = end$1;
-          }
-          closeElement(element);
-        },
-  
-        chars: function chars (text, start, end) {
-          if (!currentParent) {
-            {
-              if (text === template) {
-                warnOnce(
-                  'Component template requires a root element, rather than just text.',
-                  { start: start }
-                );
-              } else if ((text = text.trim())) {
-                warnOnce(
-                  ("text \"" + text + "\" outside root element will be ignored."),
-                  { start: start }
-                );
-              }
-            }
-            return
-          }
-          // IE textarea placeholder bug
-          /* istanbul ignore if */
-          if (isIE &&
-            currentParent.tag === 'textarea' &&
-            currentParent.attrsMap.placeholder === text
-          ) {
-            return
-          }
-          var children = currentParent.children;
-          if (inPre || text.trim()) {
-            text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
-          } else if (!children.length) {
-            // remove the whitespace-only node right after an opening tag
-            text = '';
-          } else if (whitespaceOption) {
-            if (whitespaceOption === 'condense') {
-              // in condense mode, remove the whitespace node if it contains
-              // line break, otherwise condense to a single space
-              text = lineBreakRE.test(text) ? '' : ' ';
-            } else {
-              text = ' ';
-            }
-          } else {
-            text = preserveWhitespace ? ' ' : '';
-          }
-          if (text) {
-            if (!inPre && whitespaceOption === 'condense') {
-              // condense consecutive whitespaces into single space
-              text = text.replace(whitespaceRE$1, ' ');
-            }
-            var res;
-            var child;
-            if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-              child = {
-                type: 2,
-                expression: res.expression,
-                tokens: res.tokens,
-                text: text
-              };
-            } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-              child = {
-                type: 3,
-                text: text
-              };
-            }
-            if (child) {
-              if (options.outputSourceRange) {
-                child.start = start;
-                child.end = end;
-              }
-              children.push(child);
-            }
-          }
-        },
-        comment: function comment (text, start, end) {
-          // adding anyting as a sibling to the root node is forbidden
-          // comments should still be allowed, but ignored
-          if (currentParent) {
-            var child = {
-              type: 3,
-              text: text,
-              isComment: true
-            };
-            if (options.outputSourceRange) {
-              child.start = start;
-              child.end = end;
-            }
-            currentParent.children.push(child);
-          }
-        }
-      });
-      return root
-    }
-  
-    function processPre (el) {
-      if (getAndRemoveAttr(el, 'v-pre') != null) {
-        el.pre = true;
-      }
-    }
-  
-    function processRawAttrs (el) {
-      var list = el.attrsList;
-      var len = list.length;
-      if (len) {
-        var attrs = el.attrs = new Array(len);
-        for (var i = 0; i < len; i++) {
-          attrs[i] = {
-            name: list[i].name,
-            value: JSON.stringify(list[i].value)
-          };
-          if (list[i].start != null) {
-            attrs[i].start = list[i].start;
-            attrs[i].end = list[i].end;
-          }
-        }
-      } else if (!el.pre) {
-        // non root node in pre blocks with no attributes
-        el.plain = true;
-      }
-    }
-  
-    function processElement (
-      element,
-      options
-    ) {
-      processKey(element);
-  
-      // determine whether this is a plain element after
-      // removing structural attributes
-      element.plain = (
-        !element.key &&
-        !element.scopedSlots &&
-        !element.attrsList.length
-      );
-  
-      processRef(element);
-      processSlotContent(element);
-      processSlotOutlet(element);
-      processComponent(element);
-      for (var i = 0; i < transforms.length; i++) {
-        element = transforms[i](element, options) || element;
-      }
-      processAttrs(element);
-      return element
-    }
-  
-    function processKey (el) {
-      var exp = getBindingAttr(el, 'key');
-      if (exp) {
-        {
-          if (el.tag === 'template') {
-            warn$2(
-              "<template> cannot be keyed. Place the key on real elements instead.",
-              getRawBindingAttr(el, 'key')
-            );
-          }
-          if (el.for) {
-            var iterator = el.iterator2 || el.iterator1;
-            var parent = el.parent;
-            if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
-              warn$2(
-                "Do not use v-for index as key on <transition-group> children, " +
-                "this is the same as not using keys.",
-                getRawBindingAttr(el, 'key'),
-                true /* tip */
-              );
-            }
-          }
-        }
-        el.key = exp;
-      }
-    }
-  
-    function processRef (el) {
-      var ref = getBindingAttr(el, 'ref');
-      if (ref) {
-        el.ref = ref;
-        el.refInFor = checkInFor(el);
-      }
-    }
-  
-    function processFor (el) {
-      var exp;
-      if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-        var res = parseFor(exp);
-        if (res) {
-          extend(el, res);
-        } else {
-          warn$2(
-            ("Invalid v-for expression: " + exp),
-            el.rawAttrsMap['v-for']
-          );
-        }
-      }
-    }
-  
-  
-  
-    function parseFor (exp) {
-      var inMatch = exp.match(forAliasRE);
-      if (!inMatch) { return }
-      var res = {};
-      res.for = inMatch[2].trim();
-      var alias = inMatch[1].trim().replace(stripParensRE, '');
-      var iteratorMatch = alias.match(forIteratorRE);
-      if (iteratorMatch) {
-        res.alias = alias.replace(forIteratorRE, '').trim();
-        res.iterator1 = iteratorMatch[1].trim();
-        if (iteratorMatch[2]) {
-          res.iterator2 = iteratorMatch[2].trim();
-        }
-      } else {
-        res.alias = alias;
-      }
-      return res
-    }
-  
-    function processIf (el) {
-      var exp = getAndRemoveAttr(el, 'v-if');
-      if (exp) {
-        el.if = exp;
-        addIfCondition(el, {
-          exp: exp,
-          block: el
-        });
-      } else {
-        if (getAndRemoveAttr(el, 'v-else') != null) {
-          el.else = true;
-        }
-        var elseif = getAndRemoveAttr(el, 'v-else-if');
-        if (elseif) {
-          el.elseif = elseif;
-        }
-      }
-    }
-  
-    function processIfConditions (el, parent) {
-      var prev = findPrevElement(parent.children);
-      if (prev && prev.if) {
-        addIfCondition(prev, {
-          exp: el.elseif,
-          block: el
-        });
-      } else {
-        warn$2(
-          "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-          "used on element <" + (el.tag) + "> without corresponding v-if.",
-          el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
-        );
-      }
-    }
-  
-    function findPrevElement (children) {
-      var i = children.length;
-      while (i--) {
-        if (children[i].type === 1) {
-          return children[i]
-        } else {
-          if (children[i].text !== ' ') {
-            warn$2(
-              "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-              "will be ignored.",
-              children[i]
-            );
-          }
-          children.pop();
-        }
-      }
-    }
-  
-    function addIfCondition (el, condition) {
-      if (!el.ifConditions) {
-        el.ifConditions = [];
-      }
-      el.ifConditions.push(condition);
-    }
-  
-    function processOnce (el) {
-      var once$$1 = getAndRemoveAttr(el, 'v-once');
-      if (once$$1 != null) {
-        el.once = true;
-      }
-    }
-  
-    // handle content being passed to a component as slot,
-    // e.g. <template slot="xxx">, <div slot-scope="xxx">
-    function processSlotContent (el) {
-      var slotScope;
-      if (el.tag === 'template') {
-        slotScope = getAndRemoveAttr(el, 'scope');
-        /* istanbul ignore if */
-        if (slotScope) {
-          warn$2(
-            "the \"scope\" attribute for scoped slots have been deprecated and " +
-            "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-            "can also be used on plain elements in addition to <template> to " +
-            "denote scoped slots.",
-            el.rawAttrsMap['scope'],
-            true
-          );
-        }
-        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-      } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-        /* istanbul ignore if */
-        if (el.attrsMap['v-for']) {
-          warn$2(
-            "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-            "(v-for takes higher priority). Use a wrapper <template> for the " +
-            "scoped slot to make it clearer.",
-            el.rawAttrsMap['slot-scope'],
-            true
-          );
-        }
-        el.slotScope = slotScope;
-      }
-  
-      // slot="xxx"
-      var slotTarget = getBindingAttr(el, 'slot');
-      if (slotTarget) {
-        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-        el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
-        // preserve slot as an attribute for native shadow DOM compat
-        // only for non-scoped slots.
-        if (el.tag !== 'template' && !el.slotScope) {
-          addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
-        }
-      }
-  
-      // 2.6 v-slot syntax
-      {
-        if (el.tag === 'template') {
-          // v-slot on <template>
-          var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
-          if (slotBinding) {
-            {
-              if (el.slotTarget || el.slotScope) {
-                warn$2(
-                  "Unexpected mixed usage of different slot syntaxes.",
-                  el
-                );
-              }
-              if (el.parent && !maybeComponent(el.parent)) {
-                warn$2(
-                  "<template v-slot> can only appear at the root level inside " +
-                  "the receiving the component",
-                  el
-                );
-              }
-            }
-            var ref = getSlotName(slotBinding);
-            var name = ref.name;
-            var dynamic = ref.dynamic;
-            el.slotTarget = name;
-            el.slotTargetDynamic = dynamic;
-            el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
-          }
-        } else {
-          // v-slot on component, denotes default slot
-          var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
-          if (slotBinding$1) {
-            {
-              if (!maybeComponent(el)) {
-                warn$2(
-                  "v-slot can only be used on components or <template>.",
-                  slotBinding$1
-                );
-              }
-              if (el.slotScope || el.slotTarget) {
-                warn$2(
-                  "Unexpected mixed usage of different slot syntaxes.",
-                  el
-                );
-              }
-              if (el.scopedSlots) {
-                warn$2(
-                  "To avoid scope ambiguity, the default slot should also use " +
-                  "<template> syntax when there are other named slots.",
-                  slotBinding$1
-                );
-              }
-            }
-            // add the component's children to its default slot
-            var slots = el.scopedSlots || (el.scopedSlots = {});
-            var ref$1 = getSlotName(slotBinding$1);
-            var name$1 = ref$1.name;
-            var dynamic$1 = ref$1.dynamic;
-            var slotContainer = slots[name$1] = createASTElement('template', [], el);
-            slotContainer.slotTarget = name$1;
-            slotContainer.slotTargetDynamic = dynamic$1;
-            slotContainer.children = el.children.filter(function (c) {
-              if (!c.slotScope) {
-                c.parent = slotContainer;
-                return true
-              }
-            });
-            slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
-            // remove children as they are returned from scopedSlots now
-            el.children = [];
-            // mark el non-plain so data gets generated
-            el.plain = false;
-          }
-        }
-      }
-    }
-  
-    function getSlotName (binding) {
-      var name = binding.name.replace(slotRE, '');
-      if (!name) {
-        if (binding.name[0] !== '#') {
-          name = 'default';
-        } else {
-          warn$2(
-            "v-slot shorthand syntax requires a slot name.",
-            binding
-          );
-        }
-      }
-      return dynamicArgRE.test(name)
-        // dynamic [name]
-        ? { name: name.slice(1, -1), dynamic: true }
-        // static name
-        : { name: ("\"" + name + "\""), dynamic: false }
-    }
-  
-    // handle <slot/> outlets
-    function processSlotOutlet (el) {
-      if (el.tag === 'slot') {
-        el.slotName = getBindingAttr(el, 'name');
-        if (el.key) {
-          warn$2(
-            "`key` does not work on <slot> because slots are abstract outlets " +
-            "and can possibly expand into multiple elements. " +
-            "Use the key on a wrapping element instead.",
-            getRawBindingAttr(el, 'key')
-          );
-        }
-      }
-    }
-  
-    function processComponent (el) {
-      var binding;
-      if ((binding = getBindingAttr(el, 'is'))) {
-        el.component = binding;
-      }
-      if (getAndRemoveAttr(el, 'inline-template') != null) {
-        el.inlineTemplate = true;
-      }
-    }
-  
-    function processAttrs (el) {
-      var list = el.attrsList;
-      var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
-      for (i = 0, l = list.length; i < l; i++) {
-        name = rawName = list[i].name;
-        value = list[i].value;
-        if (dirRE.test(name)) {
-          // mark element as dynamic
-          el.hasBindings = true;
-          // modifiers
-          modifiers = parseModifiers(name.replace(dirRE, ''));
-          // support .foo shorthand syntax for the .prop modifier
-          if (modifiers) {
-            name = name.replace(modifierRE, '');
-          }
-          if (bindRE.test(name)) { // v-bind
-            name = name.replace(bindRE, '');
-            value = parseFilters(value);
-            isDynamic = dynamicArgRE.test(name);
-            if (isDynamic) {
-              name = name.slice(1, -1);
-            }
-            if (
-              value.trim().length === 0
-            ) {
-              warn$2(
-                ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
-              );
-            }
-            if (modifiers) {
-              if (modifiers.prop && !isDynamic) {
-                name = camelize(name);
-                if (name === 'innerHtml') { name = 'innerHTML'; }
-              }
-              if (modifiers.camel && !isDynamic) {
-                name = camelize(name);
-              }
-              if (modifiers.sync) {
-                syncGen = genAssignmentCode(value, "$event");
-                if (!isDynamic) {
-                  addHandler(
-                    el,
-                    ("update:" + (camelize(name))),
-                    syncGen,
-                    null,
-                    false,
-                    warn$2,
-                    list[i]
-                  );
-                  if (hyphenate(name) !== camelize(name)) {
-                    addHandler(
-                      el,
-                      ("update:" + (hyphenate(name))),
-                      syncGen,
-                      null,
-                      false,
-                      warn$2,
-                      list[i]
-                    );
-                  }
-                } else {
-                  // handler w/ dynamic event name
-                  addHandler(
-                    el,
-                    ("\"update:\"+(" + name + ")"),
-                    syncGen,
-                    null,
-                    false,
-                    warn$2,
-                    list[i],
-                    true // dynamic
-                  );
-                }
-              }
-            }
-            if ((modifiers && modifiers.prop) || (
-              !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
-            )) {
-              addProp(el, name, value, list[i], isDynamic);
-            } else {
-              addAttr(el, name, value, list[i], isDynamic);
-            }
-          } else if (onRE.test(name)) { // v-on
-            name = name.replace(onRE, '');
-            isDynamic = dynamicArgRE.test(name);
-            if (isDynamic) {
-              name = name.slice(1, -1);
-            }
-            addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
-          } else { // normal directives
-            name = name.replace(dirRE, '');
-            // parse arg
-            var argMatch = name.match(argRE);
-            var arg = argMatch && argMatch[1];
-            isDynamic = false;
-            if (arg) {
-              name = name.slice(0, -(arg.length + 1));
-              if (dynamicArgRE.test(arg)) {
-                arg = arg.slice(1, -1);
-                isDynamic = true;
-              }
-            }
-            addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
-            if (name === 'model') {
-              checkForAliasModel(el, value);
-            }
-          }
-        } else {
-          // literal attribute
-          {
-            var res = parseText(value, delimiters);
-            if (res) {
-              warn$2(
-                name + "=\"" + value + "\": " +
-                'Interpolation inside attributes has been removed. ' +
-                'Use v-bind or the colon shorthand instead. For example, ' +
-                'instead of <div id="{{ val }}">, use <div :id="val">.',
-                list[i]
-              );
-            }
-          }
-          addAttr(el, name, JSON.stringify(value), list[i]);
-          // #6887 firefox doesn't update muted state if set via attribute
-          // even immediately after element creation
-          if (!el.component &&
-              name === 'muted' &&
-              platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-            addProp(el, name, 'true', list[i]);
-          }
-        }
-      }
-    }
-  
-    function checkInFor (el) {
-      var parent = el;
-      while (parent) {
-        if (parent.for !== undefined) {
-          return true
-        }
-        parent = parent.parent;
-      }
-      return false
-    }
-  
-    function parseModifiers (name) {
-      var match = name.match(modifierRE);
-      if (match) {
-        var ret = {};
-        match.forEach(function (m) { ret[m.slice(1)] = true; });
-        return ret
-      }
-    }
-  
-    function makeAttrsMap (attrs) {
-      var map = {};
-      for (var i = 0, l = attrs.length; i < l; i++) {
-        if (
-          map[attrs[i].name] && !isIE && !isEdge
-        ) {
-          warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
-        }
-        map[attrs[i].name] = attrs[i].value;
-      }
-      return map
-    }
-  
-    // for script (e.g. type="x/template") or style, do not decode content
-    function isTextTag (el) {
-      return el.tag === 'script' || el.tag === 'style'
-    }
-  
-    function isForbiddenTag (el) {
-      return (
-        el.tag === 'style' ||
-        (el.tag === 'script' && (
-          !el.attrsMap.type ||
-          el.attrsMap.type === 'text/javascript'
-        ))
-      )
-    }
-  
-    var ieNSBug = /^xmlns:NS\d+/;
-    var ieNSPrefix = /^NS\d+:/;
-  
-    /* istanbul ignore next */
-    function guardIESVGBug (attrs) {
-      var res = [];
-      for (var i = 0; i < attrs.length; i++) {
-        var attr = attrs[i];
-        if (!ieNSBug.test(attr.name)) {
-          attr.name = attr.name.replace(ieNSPrefix, '');
-          res.push(attr);
-        }
-      }
-      return res
-    }
-  
-    function checkForAliasModel (el, value) {
-      var _el = el;
-      while (_el) {
-        if (_el.for && _el.alias === value) {
-          warn$2(
-            "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-            "You are binding v-model directly to a v-for iteration alias. " +
-            "This will not be able to modify the v-for source array because " +
-            "writing to the alias is like modifying a function local variable. " +
-            "Consider using an array of objects and use v-model on an object property instead.",
-            el.rawAttrsMap['v-model']
-          );
-        }
-        _el = _el.parent;
-      }
-    }
-  
-    /*  */
-  
-    function preTransformNode (el, options) {
-      if (el.tag === 'input') {
-        var map = el.attrsMap;
-        if (!map['v-model']) {
-          return
-        }
-  
-        var typeBinding;
-        if (map[':type'] || map['v-bind:type']) {
-          typeBinding = getBindingAttr(el, 'type');
-        }
-        if (!map.type && !typeBinding && map['v-bind']) {
-          typeBinding = "(" + (map['v-bind']) + ").type";
-        }
-  
-        if (typeBinding) {
-          var ifCondition = getAndRemoveAttr(el, 'v-if', true);
-          var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
-          var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
-          var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
-          // 1. checkbox
-          var branch0 = cloneASTElement(el);
-          // process for on the main node
-          processFor(branch0);
-          addRawAttr(branch0, 'type', 'checkbox');
-          processElement(branch0, options);
-          branch0.processed = true; // prevent it from double-processed
-          branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
-          addIfCondition(branch0, {
-            exp: branch0.if,
-            block: branch0
-          });
-          // 2. add radio else-if condition
-          var branch1 = cloneASTElement(el);
-          getAndRemoveAttr(branch1, 'v-for', true);
-          addRawAttr(branch1, 'type', 'radio');
-          processElement(branch1, options);
-          addIfCondition(branch0, {
-            exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
-            block: branch1
-          });
-          // 3. other
-          var branch2 = cloneASTElement(el);
-          getAndRemoveAttr(branch2, 'v-for', true);
-          addRawAttr(branch2, ':type', typeBinding);
-          processElement(branch2, options);
-          addIfCondition(branch0, {
-            exp: ifCondition,
-            block: branch2
-          });
-  
-          if (hasElse) {
-            branch0.else = true;
-          } else if (elseIfCondition) {
-            branch0.elseif = elseIfCondition;
-          }
-  
-          return branch0
-        }
-      }
-    }
-  
-    function cloneASTElement (el) {
-      return createASTElement(el.tag, el.attrsList.slice(), el.parent)
-    }
-  
-    var model$1 = {
-      preTransformNode: preTransformNode
-    };
-  
-    var modules$1 = [
-      klass$1,
-      style$1,
-      model$1
-    ];
-  
-    /*  */
-  
-    function text (el, dir) {
-      if (dir.value) {
-        addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
-      }
-    }
-  
-    /*  */
-  
-    function html (el, dir) {
-      if (dir.value) {
-        addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
-      }
-    }
-  
-    var directives$1 = {
-      model: model,
-      text: text,
-      html: html
-    };
-  
-    /*  */
-  
-    var baseOptions = {
-      expectHTML: true,
-      modules: modules$1,
-      directives: directives$1,
-      isPreTag: isPreTag,
-      isUnaryTag: isUnaryTag,
-      mustUseProp: mustUseProp,
-      canBeLeftOpenTag: canBeLeftOpenTag,
-      isReservedTag: isReservedTag,
-      getTagNamespace: getTagNamespace,
-      staticKeys: genStaticKeys(modules$1)
-    };
-  
-    /*  */
-  
-    var isStaticKey;
-    var isPlatformReservedTag;
-  
-    var genStaticKeysCached = cached(genStaticKeys$1);
-  
-    /**
-     * Goal of the optimizer: walk the generated template AST tree
-     * and detect sub-trees that are purely static, i.e. parts of
-     * the DOM that never needs to change.
-     *
-     * Once we detect these sub-trees, we can:
-     *
-     * 1. Hoist them into constants, so that we no longer need to
-     *    create fresh nodes for them on each re-render;
-     * 2. Completely skip them in the patching process.
-     */
-    function optimize (root, options) {
-      if (!root) { return }
-      isStaticKey = genStaticKeysCached(options.staticKeys || '');
-      isPlatformReservedTag = options.isReservedTag || no;
-      // first pass: mark all non-static nodes.
-      markStatic$1(root);
-      // second pass: mark static roots.
-      markStaticRoots(root, false);
-    }
-  
-    function genStaticKeys$1 (keys) {
-      return makeMap(
-        'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
-        (keys ? ',' + keys : '')
-      )
-    }
-  
-    function markStatic$1 (node) {
-      node.static = isStatic(node);
-      if (node.type === 1) {
-        // do not make component slot content static. this avoids
-        // 1. components not able to mutate slot nodes
-        // 2. static slot content fails for hot-reloading
-        if (
-          !isPlatformReservedTag(node.tag) &&
-          node.tag !== 'slot' &&
-          node.attrsMap['inline-template'] == null
-        ) {
-          return
-        }
-        for (var i = 0, l = node.children.length; i < l; i++) {
-          var child = node.children[i];
-          markStatic$1(child);
-          if (!child.static) {
-            node.static = false;
-          }
-        }
-        if (node.ifConditions) {
-          for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-            var block = node.ifConditions[i$1].block;
-            markStatic$1(block);
-            if (!block.static) {
-              node.static = false;
-            }
-          }
-        }
-      }
-    }
-  
-    function markStaticRoots (node, isInFor) {
-      if (node.type === 1) {
-        if (node.static || node.once) {
-          node.staticInFor = isInFor;
-        }
-        // For a node to qualify as a static root, it should have children that
-        // are not just static text. Otherwise the cost of hoisting out will
-        // outweigh the benefits and it's better off to just always render it fresh.
-        if (node.static && node.children.length && !(
-          node.children.length === 1 &&
-          node.children[0].type === 3
-        )) {
-          node.staticRoot = true;
-          return
-        } else {
-          node.staticRoot = false;
-        }
-        if (node.children) {
-          for (var i = 0, l = node.children.length; i < l; i++) {
-            markStaticRoots(node.children[i], isInFor || !!node.for);
-          }
-        }
-        if (node.ifConditions) {
-          for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-            markStaticRoots(node.ifConditions[i$1].block, isInFor);
-          }
-        }
-      }
-    }
-  
-    function isStatic (node) {
-      if (node.type === 2) { // expression
-        return false
-      }
-      if (node.type === 3) { // text
-        return true
-      }
-      return !!(node.pre || (
-        !node.hasBindings && // no dynamic bindings
-        !node.if && !node.for && // not v-if or v-for or v-else
-        !isBuiltInTag(node.tag) && // not a built-in
-        isPlatformReservedTag(node.tag) && // not a component
-        !isDirectChildOfTemplateFor(node) &&
-        Object.keys(node).every(isStaticKey)
-      ))
-    }
-  
-    function isDirectChildOfTemplateFor (node) {
-      while (node.parent) {
-        node = node.parent;
-        if (node.tag !== 'template') {
-          return false
-        }
-        if (node.for) {
-          return true
-        }
-      }
-      return false
-    }
-  
-    /*  */
-  
-    var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
-    var fnInvokeRE = /\([^)]*?\);*$/;
-    var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
-  
-    // KeyboardEvent.keyCode aliases
-    var keyCodes = {
-      esc: 27,
-      tab: 9,
-      enter: 13,
-      space: 32,
-      up: 38,
-      left: 37,
-      right: 39,
-      down: 40,
-      'delete': [8, 46]
-    };
-  
-    // KeyboardEvent.key aliases
-    var keyNames = {
-      // #7880: IE11 and Edge use `Esc` for Escape key name.
-      esc: ['Esc', 'Escape'],
-      tab: 'Tab',
-      enter: 'Enter',
-      // #9112: IE11 uses `Spacebar` for Space key name.
-      space: [' ', 'Spacebar'],
-      // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
-      up: ['Up', 'ArrowUp'],
-      left: ['Left', 'ArrowLeft'],
-      right: ['Right', 'ArrowRight'],
-      down: ['Down', 'ArrowDown'],
-      // #9112: IE11 uses `Del` for Delete key name.
-      'delete': ['Backspace', 'Delete', 'Del']
-    };
-  
-    // #4868: modifiers that prevent the execution of the listener
-    // need to explicitly return null so that we can determine whether to remove
-    // the listener for .once
-    var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
-  
-    var modifierCode = {
-      stop: '$event.stopPropagation();',
-      prevent: '$event.preventDefault();',
-      self: genGuard("$event.target !== $event.currentTarget"),
-      ctrl: genGuard("!$event.ctrlKey"),
-      shift: genGuard("!$event.shiftKey"),
-      alt: genGuard("!$event.altKey"),
-      meta: genGuard("!$event.metaKey"),
-      left: genGuard("'button' in $event && $event.button !== 0"),
-      middle: genGuard("'button' in $event && $event.button !== 1"),
-      right: genGuard("'button' in $event && $event.button !== 2")
-    };
-  
-    function genHandlers (
-      events,
-      isNative
-    ) {
-      var prefix = isNative ? 'nativeOn:' : 'on:';
-      var staticHandlers = "";
-      var dynamicHandlers = "";
-      for (var name in events) {
-        var handlerCode = genHandler(events[name]);
-        if (events[name] && events[name].dynamic) {
-          dynamicHandlers += name + "," + handlerCode + ",";
-        } else {
-          staticHandlers += "\"" + name + "\":" + handlerCode + ",";
-        }
-      }
-      staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
-      if (dynamicHandlers) {
-        return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
-      } else {
-        return prefix + staticHandlers
-      }
-    }
-  
-    function genHandler (handler) {
-      if (!handler) {
-        return 'function(){}'
-      }
-  
-      if (Array.isArray(handler)) {
-        return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
-      }
-  
-      var isMethodPath = simplePathRE.test(handler.value);
-      var isFunctionExpression = fnExpRE.test(handler.value);
-      var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
-  
-      if (!handler.modifiers) {
-        if (isMethodPath || isFunctionExpression) {
-          return handler.value
-        }
-        return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
-      } else {
-        var code = '';
-        var genModifierCode = '';
-        var keys = [];
-        for (var key in handler.modifiers) {
-          if (modifierCode[key]) {
-            genModifierCode += modifierCode[key];
-            // left/right
-            if (keyCodes[key]) {
-              keys.push(key);
-            }
-          } else if (key === 'exact') {
-            var modifiers = (handler.modifiers);
-            genModifierCode += genGuard(
-              ['ctrl', 'shift', 'alt', 'meta']
-                .filter(function (keyModifier) { return !modifiers[keyModifier]; })
-                .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
-                .join('||')
-            );
-          } else {
-            keys.push(key);
-          }
-        }
-        if (keys.length) {
-          code += genKeyFilter(keys);
-        }
-        // Make sure modifiers like prevent and stop get executed after key filtering
-        if (genModifierCode) {
-          code += genModifierCode;
-        }
-        var handlerCode = isMethodPath
-          ? ("return " + (handler.value) + "($event)")
-          : isFunctionExpression
-            ? ("return (" + (handler.value) + ")($event)")
-            : isFunctionInvocation
-              ? ("return " + (handler.value))
-              : handler.value;
-        return ("function($event){" + code + handlerCode + "}")
-      }
-    }
-  
-    function genKeyFilter (keys) {
-      return (
-        // make sure the key filters only apply to KeyboardEvents
-        // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
-        // key events that do not have keyCode property...
-        "if(!$event.type.indexOf('key')&&" +
-        (keys.map(genFilterCode).join('&&')) + ")return null;"
-      )
-    }
-  
-    function genFilterCode (key) {
-      var keyVal = parseInt(key, 10);
-      if (keyVal) {
-        return ("$event.keyCode!==" + keyVal)
-      }
-      var keyCode = keyCodes[key];
-      var keyName = keyNames[key];
-      return (
-        "_k($event.keyCode," +
-        (JSON.stringify(key)) + "," +
-        (JSON.stringify(keyCode)) + "," +
-        "$event.key," +
-        "" + (JSON.stringify(keyName)) +
-        ")"
-      )
-    }
-  
-    /*  */
-  
-    function on (el, dir) {
-      if (dir.modifiers) {
-        warn("v-on without argument does not support modifiers.");
-      }
-      el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
-    }
-  
-    /*  */
-  
-    function bind$1 (el, dir) {
-      el.wrapData = function (code) {
-        return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
-      };
-    }
-  
-    /*  */
-  
-    var baseDirectives = {
-      on: on,
-      bind: bind$1,
-      cloak: noop
-    };
-  
-    /*  */
-  
-  
-  
-  
-  
-    var CodegenState = function CodegenState (options) {
-      this.options = options;
-      this.warn = options.warn || baseWarn;
-      this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-      this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-      this.directives = extend(extend({}, baseDirectives), options.directives);
-      var isReservedTag = options.isReservedTag || no;
-      this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
-      this.onceId = 0;
-      this.staticRenderFns = [];
-      this.pre = false;
-    };
-  
-  
-  
-    function generate (
-      ast,
-      options
-    ) {
-      var state = new CodegenState(options);
-      var code = ast ? genElement(ast, state) : '_c("div")';
-      return {
-        render: ("with(this){return " + code + "}"),
-        staticRenderFns: state.staticRenderFns
-      }
-    }
-  
-    function genElement (el, state) {
-      if (el.parent) {
-        el.pre = el.pre || el.parent.pre;
-      }
-  
-      if (el.staticRoot && !el.staticProcessed) {
-        return genStatic(el, state)
-      } else if (el.once && !el.onceProcessed) {
-        return genOnce(el, state)
-      } else if (el.for && !el.forProcessed) {
-        return genFor(el, state)
-      } else if (el.if && !el.ifProcessed) {
-        return genIf(el, state)
-      } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
-        return genChildren(el, state) || 'void 0'
-      } else if (el.tag === 'slot') {
-        return genSlot(el, state)
-      } else {
-        // component or element
-        var code;
-        if (el.component) {
-          code = genComponent(el.component, el, state);
-        } else {
-          var data;
-          if (!el.plain || (el.pre && state.maybeComponent(el))) {
-            data = genData$2(el, state);
-          }
-  
-          var children = el.inlineTemplate ? null : genChildren(el, state, true);
-          code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
-        }
-        // module transforms
-        for (var i = 0; i < state.transforms.length; i++) {
-          code = state.transforms[i](el, code);
-        }
-        return code
-      }
-    }
-  
-    // hoist static sub-trees out
-    function genStatic (el, state) {
-      el.staticProcessed = true;
-      // Some elements (templates) need to behave differently inside of a v-pre
-      // node.  All pre nodes are static roots, so we can use this as a location to
-      // wrap a state change and reset it upon exiting the pre node.
-      var originalPreState = state.pre;
-      if (el.pre) {
-        state.pre = el.pre;
-      }
-      state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-      state.pre = originalPreState;
-      return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
-    }
-  
-    // v-once
-    function genOnce (el, state) {
-      el.onceProcessed = true;
-      if (el.if && !el.ifProcessed) {
-        return genIf(el, state)
-      } else if (el.staticInFor) {
-        var key = '';
-        var parent = el.parent;
-        while (parent) {
-          if (parent.for) {
-            key = parent.key;
-            break
-          }
-          parent = parent.parent;
-        }
-        if (!key) {
-          state.warn(
-            "v-once can only be used inside v-for that is keyed. ",
-            el.rawAttrsMap['v-once']
-          );
-          return genElement(el, state)
-        }
-        return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
-      } else {
-        return genStatic(el, state)
-      }
-    }
-  
-    function genIf (
-      el,
-      state,
-      altGen,
-      altEmpty
-    ) {
-      el.ifProcessed = true; // avoid recursion
-      return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
-    }
-  
-    function genIfConditions (
-      conditions,
-      state,
-      altGen,
-      altEmpty
-    ) {
-      if (!conditions.length) {
-        return altEmpty || '_e()'
-      }
-  
-      var condition = conditions.shift();
-      if (condition.exp) {
-        return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
-      } else {
-        return ("" + (genTernaryExp(condition.block)))
-      }
-  
-      // v-if with v-once should generate code like (a)?_m(0):_m(1)
-      function genTernaryExp (el) {
-        return altGen
-          ? altGen(el, state)
-          : el.once
-            ? genOnce(el, state)
-            : genElement(el, state)
-      }
-    }
-  
-    function genFor (
-      el,
-      state,
-      altGen,
-      altHelper
-    ) {
-      var exp = el.for;
-      var alias = el.alias;
-      var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-      var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  
-      if (state.maybeComponent(el) &&
-        el.tag !== 'slot' &&
-        el.tag !== 'template' &&
-        !el.key
-      ) {
-        state.warn(
-          "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
-          "v-for should have explicit keys. " +
-          "See https://vuejs.org/guide/list.html#key for more info.",
-          el.rawAttrsMap['v-for'],
-          true /* tip */
-        );
-      }
-  
-      el.forProcessed = true; // avoid recursion
-      return (altHelper || '_l') + "((" + exp + ")," +
-        "function(" + alias + iterator1 + iterator2 + "){" +
-          "return " + ((altGen || genElement)(el, state)) +
-        '})'
-    }
-  
-    function genData$2 (el, state) {
-      var data = '{';
-  
-      // directives first.
-      // directives may mutate the el's other properties before they are generated.
-      var dirs = genDirectives(el, state);
-      if (dirs) { data += dirs + ','; }
-  
-      // key
-      if (el.key) {
-        data += "key:" + (el.key) + ",";
-      }
-      // ref
-      if (el.ref) {
-        data += "ref:" + (el.ref) + ",";
-      }
-      if (el.refInFor) {
-        data += "refInFor:true,";
-      }
-      // pre
-      if (el.pre) {
-        data += "pre:true,";
-      }
-      // record original tag name for components using "is" attribute
-      if (el.component) {
-        data += "tag:\"" + (el.tag) + "\",";
-      }
-      // module data generation functions
-      for (var i = 0; i < state.dataGenFns.length; i++) {
-        data += state.dataGenFns[i](el);
-      }
-      // attributes
-      if (el.attrs) {
-        data += "attrs:" + (genProps(el.attrs)) + ",";
-      }
-      // DOM props
-      if (el.props) {
-        data += "domProps:" + (genProps(el.props)) + ",";
-      }
-      // event handlers
-      if (el.events) {
-        data += (genHandlers(el.events, false)) + ",";
-      }
-      if (el.nativeEvents) {
-        data += (genHandlers(el.nativeEvents, true)) + ",";
-      }
-      // slot target
-      // only for non-scoped slots
-      if (el.slotTarget && !el.slotScope) {
-        data += "slot:" + (el.slotTarget) + ",";
-      }
-      // scoped slots
-      if (el.scopedSlots) {
-        data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
-      }
-      // component v-model
-      if (el.model) {
-        data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
-      }
-      // inline-template
-      if (el.inlineTemplate) {
-        var inlineTemplate = genInlineTemplate(el, state);
-        if (inlineTemplate) {
-          data += inlineTemplate + ",";
-        }
-      }
-      data = data.replace(/,$/, '') + '}';
-      // v-bind dynamic argument wrap
-      // v-bind with dynamic arguments must be applied using the same v-bind object
-      // merge helper so that class/style/mustUseProp attrs are handled correctly.
-      if (el.dynamicAttrs) {
-        data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
-      }
-      // v-bind data wrap
-      if (el.wrapData) {
-        data = el.wrapData(data);
-      }
-      // v-on data wrap
-      if (el.wrapListeners) {
-        data = el.wrapListeners(data);
-      }
-      return data
-    }
-  
-    function genDirectives (el, state) {
-      var dirs = el.directives;
-      if (!dirs) { return }
-      var res = 'directives:[';
-      var hasRuntime = false;
-      var i, l, dir, needRuntime;
-      for (i = 0, l = dirs.length; i < l; i++) {
-        dir = dirs[i];
-        needRuntime = true;
-        var gen = state.directives[dir.name];
-        if (gen) {
-          // compile-time directive that manipulates AST.
-          // returns true if it also needs a runtime counterpart.
-          needRuntime = !!gen(el, dir, state.warn);
-        }
-        if (needRuntime) {
-          hasRuntime = true;
-          res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
-        }
-      }
-      if (hasRuntime) {
-        return res.slice(0, -1) + ']'
-      }
-    }
-  
-    function genInlineTemplate (el, state) {
-      var ast = el.children[0];
-      if (el.children.length !== 1 || ast.type !== 1) {
-        state.warn(
-          'Inline-template components must have exactly one child element.',
-          { start: el.start }
-        );
-      }
-      if (ast && ast.type === 1) {
-        var inlineRenderFns = generate(ast, state.options);
-        return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
-      }
-    }
-  
-    function genScopedSlots (
-      el,
-      slots,
-      state
-    ) {
-      // by default scoped slots are considered "stable", this allows child
-      // components with only scoped slots to skip forced updates from parent.
-      // but in some cases we have to bail-out of this optimization
-      // for example if the slot contains dynamic names, has v-if or v-for on them...
-      var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
-        var slot = slots[key];
-        return (
-          slot.slotTargetDynamic ||
-          slot.if ||
-          slot.for ||
-          containsSlotChild(slot) // is passing down slot from parent which may be dynamic
-        )
-      });
-  
-      // #9534: if a component with scoped slots is inside a conditional branch,
-      // it's possible for the same component to be reused but with different
-      // compiled slot content. To avoid that, we generate a unique key based on
-      // the generated code of all the slot contents.
-      var needsKey = !!el.if;
-  
-      // OR when it is inside another scoped slot or v-for (the reactivity may be
-      // disconnected due to the intermediate scope variable)
-      // #9438, #9506
-      // TODO: this can be further optimized by properly analyzing in-scope bindings
-      // and skip force updating ones that do not actually use scope variables.
-      if (!needsForceUpdate) {
-        var parent = el.parent;
-        while (parent) {
-          if (
-            (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
-            parent.for
-          ) {
-            needsForceUpdate = true;
-            break
-          }
-          if (parent.if) {
-            needsKey = true;
-          }
-          parent = parent.parent;
-        }
-      }
-  
-      var generatedSlots = Object.keys(slots)
-        .map(function (key) { return genScopedSlot(slots[key], state); })
-        .join(',');
-  
-      return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
-    }
-  
-    function hash(str) {
-      var hash = 5381;
-      var i = str.length;
-      while(i) {
-        hash = (hash * 33) ^ str.charCodeAt(--i);
-      }
-      return hash >>> 0
-    }
-  
-    function containsSlotChild (el) {
-      if (el.type === 1) {
-        if (el.tag === 'slot') {
-          return true
-        }
-        return el.children.some(containsSlotChild)
-      }
-      return false
-    }
-  
-    function genScopedSlot (
-      el,
-      state
-    ) {
-      var isLegacySyntax = el.attrsMap['slot-scope'];
-      if (el.if && !el.ifProcessed && !isLegacySyntax) {
-        return genIf(el, state, genScopedSlot, "null")
-      }
-      if (el.for && !el.forProcessed) {
-        return genFor(el, state, genScopedSlot)
-      }
-      var slotScope = el.slotScope === emptySlotScopeToken
-        ? ""
-        : String(el.slotScope);
-      var fn = "function(" + slotScope + "){" +
-        "return " + (el.tag === 'template'
-          ? el.if && isLegacySyntax
-            ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-            : genChildren(el, state) || 'undefined'
-          : genElement(el, state)) + "}";
-      // reverse proxy v-slot without scope on this.$slots
-      var reverseProxy = slotScope ? "" : ",proxy:true";
-      return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
-    }
-  
-    function genChildren (
-      el,
-      state,
-      checkSkip,
-      altGenElement,
-      altGenNode
-    ) {
-      var children = el.children;
-      if (children.length) {
-        var el$1 = children[0];
-        // optimize single v-for
-        if (children.length === 1 &&
-          el$1.for &&
-          el$1.tag !== 'template' &&
-          el$1.tag !== 'slot'
-        ) {
-          var normalizationType = checkSkip
-            ? state.maybeComponent(el$1) ? ",1" : ",0"
-            : "";
-          return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
-        }
-        var normalizationType$1 = checkSkip
-          ? getNormalizationType(children, state.maybeComponent)
-          : 0;
-        var gen = altGenNode || genNode;
-        return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
-      }
-    }
-  
-    // determine the normalization needed for the children array.
-    // 0: no normalization needed
-    // 1: simple normalization needed (possible 1-level deep nested array)
-    // 2: full normalization needed
-    function getNormalizationType (
-      children,
-      maybeComponent
-    ) {
-      var res = 0;
-      for (var i = 0; i < children.length; i++) {
-        var el = children[i];
-        if (el.type !== 1) {
-          continue
-        }
-        if (needsNormalization(el) ||
-            (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
-          res = 2;
-          break
-        }
-        if (maybeComponent(el) ||
-            (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
-          res = 1;
-        }
-      }
-      return res
-    }
-  
-    function needsNormalization (el) {
-      return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
-    }
-  
-    function genNode (node, state) {
-      if (node.type === 1) {
-        return genElement(node, state)
-      } else if (node.type === 3 && node.isComment) {
-        return genComment(node)
-      } else {
-        return genText(node)
-      }
-    }
-  
-    function genText (text) {
-      return ("_v(" + (text.type === 2
-        ? text.expression // no need for () because already wrapped in _s()
-        : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
-    }
-  
-    function genComment (comment) {
-      return ("_e(" + (JSON.stringify(comment.text)) + ")")
-    }
-  
-    function genSlot (el, state) {
-      var slotName = el.slotName || '"default"';
-      var children = genChildren(el, state);
-      var res = "_t(" + slotName + (children ? ("," + children) : '');
-      var attrs = el.attrs || el.dynamicAttrs
-        ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
-            // slot props are camelized
-            name: camelize(attr.name),
-            value: attr.value,
-            dynamic: attr.dynamic
-          }); }))
-        : null;
-      var bind$$1 = el.attrsMap['v-bind'];
-      if ((attrs || bind$$1) && !children) {
-        res += ",null";
-      }
-      if (attrs) {
-        res += "," + attrs;
-      }
-      if (bind$$1) {
-        res += (attrs ? '' : ',null') + "," + bind$$1;
-      }
-      return res + ')'
-    }
-  
-    // componentName is el.component, take it as argument to shun flow's pessimistic refinement
-    function genComponent (
-      componentName,
-      el,
-      state
-    ) {
-      var children = el.inlineTemplate ? null : genChildren(el, state, true);
-      return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
-    }
-  
-    function genProps (props) {
-      var staticProps = "";
-      var dynamicProps = "";
-      for (var i = 0; i < props.length; i++) {
-        var prop = props[i];
-        var value = transformSpecialNewlines(prop.value);
-        if (prop.dynamic) {
-          dynamicProps += (prop.name) + "," + value + ",";
-        } else {
-          staticProps += "\"" + (prop.name) + "\":" + value + ",";
-        }
-      }
-      staticProps = "{" + (staticProps.slice(0, -1)) + "}";
-      if (dynamicProps) {
-        return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
-      } else {
-        return staticProps
-      }
-    }
-  
-    // #3895, #4268
-    function transformSpecialNewlines (text) {
-      return text
-        .replace(/\u2028/g, '\\u2028')
-        .replace(/\u2029/g, '\\u2029')
-    }
-  
-    /*  */
-  
-  
-  
-    // these keywords should not appear inside expressions, but operators like
-    // typeof, instanceof and in are allowed
-    var prohibitedKeywordRE = new RegExp('\\b' + (
-      'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
-      'super,throw,while,yield,delete,export,import,return,switch,default,' +
-      'extends,finally,continue,debugger,function,arguments'
-    ).split(',').join('\\b|\\b') + '\\b');
-  
-    // these unary operators should not be used as property/method names
-    var unaryOperatorsRE = new RegExp('\\b' + (
-      'delete,typeof,void'
-    ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
-  
-    // strip strings in expressions
-    var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
-  
-    // detect problematic expressions in a template
-    function detectErrors (ast, warn) {
-      if (ast) {
-        checkNode(ast, warn);
-      }
-    }
-  
-    function checkNode (node, warn) {
-      if (node.type === 1) {
-        for (var name in node.attrsMap) {
-          if (dirRE.test(name)) {
-            var value = node.attrsMap[name];
-            if (value) {
-              var range = node.rawAttrsMap[name];
-              if (name === 'v-for') {
-                checkFor(node, ("v-for=\"" + value + "\""), warn, range);
-              } else if (onRE.test(name)) {
-                checkEvent(value, (name + "=\"" + value + "\""), warn, range);
-              } else {
-                checkExpression(value, (name + "=\"" + value + "\""), warn, range);
-              }
-            }
-          }
-        }
-        if (node.children) {
-          for (var i = 0; i < node.children.length; i++) {
-            checkNode(node.children[i], warn);
-          }
-        }
-      } else if (node.type === 2) {
-        checkExpression(node.expression, node.text, warn, node);
-      }
-    }
-  
-    function checkEvent (exp, text, warn, range) {
-      var stipped = exp.replace(stripStringRE, '');
-      var keywordMatch = stipped.match(unaryOperatorsRE);
-      if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-        warn(
-          "avoid using JavaScript unary operator as property name: " +
-          "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
-          range
-        );
-      }
-      checkExpression(exp, text, warn, range);
-    }
-  
-    function checkFor (node, text, warn, range) {
-      checkExpression(node.for || '', text, warn, range);
-      checkIdentifier(node.alias, 'v-for alias', text, warn, range);
-      checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
-      checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
-    }
-  
-    function checkIdentifier (
-      ident,
-      type,
-      text,
-      warn,
-      range
-    ) {
-      if (typeof ident === 'string') {
-        try {
-          new Function(("var " + ident + "=_"));
-        } catch (e) {
-          warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
-        }
-      }
-    }
-  
-    function checkExpression (exp, text, warn, range) {
-      try {
-        new Function(("return " + exp));
-      } catch (e) {
-        var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-        if (keywordMatch) {
-          warn(
-            "avoid using JavaScript keyword as property name: " +
-            "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
-            range
-          );
-        } else {
-          warn(
-            "invalid expression: " + (e.message) + " in\n\n" +
-            "    " + exp + "\n\n" +
-            "  Raw expression: " + (text.trim()) + "\n",
-            range
-          );
-        }
-      }
-    }
-  
-    /*  */
-  
-    var range = 2;
-  
-    function generateCodeFrame (
-      source,
-      start,
-      end
-    ) {
-      if ( start === void 0 ) start = 0;
-      if ( end === void 0 ) end = source.length;
-  
-      var lines = source.split(/\r?\n/);
-      var count = 0;
-      var res = [];
-      for (var i = 0; i < lines.length; i++) {
-        count += lines[i].length + 1;
-        if (count >= start) {
-          for (var j = i - range; j <= i + range || end > count; j++) {
-            if (j < 0 || j >= lines.length) { continue }
-            res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
-            var lineLength = lines[j].length;
-            if (j === i) {
-              // push underline
-              var pad = start - (count - lineLength) + 1;
-              var length = end > count ? lineLength - pad : end - start;
-              res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
-            } else if (j > i) {
-              if (end > count) {
-                var length$1 = Math.min(end - count, lineLength);
-                res.push("   |  " + repeat$1("^", length$1));
-              }
-              count += lineLength + 1;
-            }
-          }
-          break
-        }
-      }
-      return res.join('\n')
-    }
-  
-    function repeat$1 (str, n) {
-      var result = '';
-      if (n > 0) {
-        while (true) { // eslint-disable-line
-          if (n & 1) { result += str; }
-          n >>>= 1;
-          if (n <= 0) { break }
-          str += str;
-        }
-      }
-      return result
-    }
-  
-    /*  */
-  
-  
-  
-    function createFunction (code, errors) {
-      try {
-        return new Function(code)
-      } catch (err) {
-        errors.push({ err: err, code: code });
-        return noop
-      }
-    }
-  
-    function createCompileToFunctionFn (compile) {
-      var cache = Object.create(null);
-  
-      return function compileToFunctions (
-        template,
-        options,
-        vm
-      ) {
-        options = extend({}, options);
-        var warn$$1 = options.warn || warn;
-        delete options.warn;
-  
-        /* istanbul ignore if */
-        {
-          // detect possible CSP restriction
-          try {
-            new Function('return 1');
-          } catch (e) {
-            if (e.toString().match(/unsafe-eval|CSP/)) {
-              warn$$1(
-                'It seems you are using the standalone build of Vue.js in an ' +
-                'environment with Content Security Policy that prohibits unsafe-eval. ' +
-                'The template compiler cannot work in this environment. Consider ' +
-                'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
-                'templates into render functions.'
-              );
-            }
-          }
-        }
-  
-        // check cache
-        var key = options.delimiters
-          ? String(options.delimiters) + template
-          : template;
-        if (cache[key]) {
-          return cache[key]
-        }
-  
-        // compile
-        var compiled = compile(template, options);
-  
-        // check compilation errors/tips
-        {
-          if (compiled.errors && compiled.errors.length) {
-            if (options.outputSourceRange) {
-              compiled.errors.forEach(function (e) {
-                warn$$1(
-                  "Error compiling template:\n\n" + (e.msg) + "\n\n" +
-                  generateCodeFrame(template, e.start, e.end),
-                  vm
-                );
-              });
-            } else {
-              warn$$1(
-                "Error compiling template:\n\n" + template + "\n\n" +
-                compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-                vm
-              );
-            }
-          }
-          if (compiled.tips && compiled.tips.length) {
-            if (options.outputSourceRange) {
-              compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
-            } else {
-              compiled.tips.forEach(function (msg) { return tip(msg, vm); });
-            }
-          }
-        }
-  
-        // turn code into functions
-        var res = {};
-        var fnGenErrors = [];
-        res.render = createFunction(compiled.render, fnGenErrors);
-        res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
-          return createFunction(code, fnGenErrors)
-        });
-  
-        // check function generation errors.
-        // this should only happen if there is a bug in the compiler itself.
-        // mostly for codegen development use
-        /* istanbul ignore if */
-        {
-          if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-            warn$$1(
-              "Failed to generate render function:\n\n" +
-              fnGenErrors.map(function (ref) {
-                var err = ref.err;
-                var code = ref.code;
-  
-                return ((err.toString()) + " in\n\n" + code + "\n");
-            }).join('\n'),
-              vm
-            );
-          }
-        }
-  
-        return (cache[key] = res)
-      }
-    }
-  
-    /*  */
-  
-    function createCompilerCreator (baseCompile) {
-      return function createCompiler (baseOptions) {
-        function compile (
-          template,
-          options
-        ) {
-          var finalOptions = Object.create(baseOptions);
-          var errors = [];
-          var tips = [];
-  
-          var warn = function (msg, range, tip) {
-            (tip ? tips : errors).push(msg);
-          };
-  
-          if (options) {
-            if (options.outputSourceRange) {
-              // $flow-disable-line
-              var leadingSpaceLength = template.match(/^\s*/)[0].length;
-  
-              warn = function (msg, range, tip) {
-                var data = { msg: msg };
-                if (range) {
-                  if (range.start != null) {
-                    data.start = range.start + leadingSpaceLength;
-                  }
-                  if (range.end != null) {
-                    data.end = range.end + leadingSpaceLength;
-                  }
-                }
-                (tip ? tips : errors).push(data);
-              };
-            }
-            // merge custom modules
-            if (options.modules) {
-              finalOptions.modules =
-                (baseOptions.modules || []).concat(options.modules);
-            }
-            // merge custom directives
-            if (options.directives) {
-              finalOptions.directives = extend(
-                Object.create(baseOptions.directives || null),
-                options.directives
-              );
-            }
-            // copy other options
-            for (var key in options) {
-              if (key !== 'modules' && key !== 'directives') {
-                finalOptions[key] = options[key];
-              }
-            }
-          }
-  
-          finalOptions.warn = warn;
-  
-          var compiled = baseCompile(template.trim(), finalOptions);
-          {
-            detectErrors(compiled.ast, warn);
-          }
-          compiled.errors = errors;
-          compiled.tips = tips;
-          return compiled
-        }
-  
-        return {
-          compile: compile,
-          compileToFunctions: createCompileToFunctionFn(compile)
-        }
-      }
-    }
-  
-    /*  */
-  
-    // `createCompilerCreator` allows creating compilers that use alternative
-    // parser/optimizer/codegen, e.g the SSR optimizing compiler.
-    // Here we just export a default compiler using the default parts.
-    var createCompiler = createCompilerCreator(function baseCompile (
-      template,
-      options
-    ) {
-      var ast = parse(template.trim(), options);
-      if (options.optimize !== false) {
-        optimize(ast, options);
-      }
-      var code = generate(ast, options);
-      return {
-        ast: ast,
-        render: code.render,
-        staticRenderFns: code.staticRenderFns
-      }
-    });
-  
-    /*  */
-  
-    var ref$1 = createCompiler(baseOptions);
-    var compile = ref$1.compile;
-    var compileToFunctions = ref$1.compileToFunctions;
-  
-    /*  */
-  
-    // check whether current browser encodes a char inside attribute values
-    var div;
-    function getShouldDecode (href) {
-      div = div || document.createElement('div');
-      div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
-      return div.innerHTML.indexOf('&#10;') > 0
-    }
-  
-    // #3663: IE encodes newlines inside attribute values while other browsers don't
-    var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
-    // #6828: chrome encodes content in a[href]
-    var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
-  
-    /*  */
-  
-    var idToTemplate = cached(function (id) {
-      var el = query(id);
-      return el && el.innerHTML
-    });
-  
-    var mount = Vue.prototype.$mount;
-    Vue.prototype.$mount = function (
-      el,
-      hydrating
-    ) {
-      el = el && query(el);
-  
-      /* istanbul ignore if */
-      if (el === document.body || el === document.documentElement) {
-        warn(
-          "Do not mount Vue to <html> or <body> - mount to normal elements instead."
-        );
-        return this
-      }
-  
-      var options = this.$options;
-      // resolve template/el and convert to render function
-      if (!options.render) {
-        var template = options.template;
-        if (template) {
-          if (typeof template === 'string') {
-            if (template.charAt(0) === '#') {
-              template = idToTemplate(template);
-              /* istanbul ignore if */
-              if (!template) {
-                warn(
-                  ("Template element not found or is empty: " + (options.template)),
-                  this
-                );
-              }
-            }
-          } else if (template.nodeType) {
-            template = template.innerHTML;
-          } else {
-            {
-              warn('invalid template option:' + template, this);
-            }
-            return this
-          }
-        } else if (el) {
-          template = getOuterHTML(el);
-        }
-        if (template) {
-          /* istanbul ignore if */
-          if (config.performance && mark) {
-            mark('compile');
-          }
-  
-          var ref = compileToFunctions(template, {
-            outputSourceRange: "development" !== 'production',
-            shouldDecodeNewlines: shouldDecodeNewlines,
-            shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
-            delimiters: options.delimiters,
-            comments: options.comments
-          }, this);
-          var render = ref.render;
-          var staticRenderFns = ref.staticRenderFns;
-          options.render = render;
-          options.staticRenderFns = staticRenderFns;
-  
-          /* istanbul ignore if */
-          if (config.performance && mark) {
-            mark('compile end');
-            measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
-          }
-        }
-      }
-      return mount.call(this, el, hydrating)
-    };
-  
-    /**
-     * Get outerHTML of elements, taking care
-     * of SVG elements in IE as well.
-     */
-    function getOuterHTML (el) {
-      if (el.outerHTML) {
-        return el.outerHTML
-      } else {
-        var container = document.createElement('div');
-        container.appendChild(el.cloneNode(true));
-        return container.innerHTML
-      }
-    }
-  
-    Vue.compile = compileToFunctions;
-  
-    return Vue;
-  
-  }));
\ No newline at end of file
--
libgit2 0.27.0