koagent/.cache/88/43e32f559bb777c3299d8f0c9b7c33.json

{"id":"../../koagent-dfire/node_modules/vue/dist/vue.runtime.esm.js","dependencies":[{"name":"/Users/xsp/src/js/koalajs/packages/koagent/package.json","includedInParent":true,"mtime":1541040056487},{"name":"/Users/xsp/src/js/koalajs/packages/koagent/.babelrc","includedInParent":true,"mtime":1541039725197},{"name":"/Users/xsp/src/js/koalajs/packages/koagent-dfire/node_modules/vue/package.json","includedInParent":true,"mtime":1540983752414}],"generated":{"js":"var global = arguments[3];\n\"use strict\";\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\nexports.default = void 0;\n\n/*!\n * Vue.js v2.5.17\n * (c) 2014-2018 Evan You\n * Released under the MIT License.\n */\n\n/*  */\nvar emptyObject = Object.freeze({}); // these helpers produces better vm code in JS engines due to their\n// explicitness and function inlining\n\nfunction isUndef(v) {\n  return v === undefined || v === null;\n}\n\nfunction isDef(v) {\n  return v !== undefined && v !== null;\n}\n\nfunction isTrue(v) {\n  return v === true;\n}\n\nfunction isFalse(v) {\n  return v === false;\n}\n/**\n * Check if value is primitive\n */\n\n\nfunction isPrimitive(value) {\n  return typeof value === 'string' || typeof value === 'number' || // $flow-disable-line\n  typeof value === 'symbol' || typeof value === 'boolean';\n}\n/**\n * Quick object check - this is primarily used to tell\n * Objects from primitive values when we know the value\n * is a JSON-compliant type.\n */\n\n\nfunction isObject(obj) {\n  return obj !== null && typeof obj === 'object';\n}\n/**\n * Get the raw type string of a value e.g. [object Object]\n */\n\n\nvar _toString = Object.prototype.toString;\n\nfunction toRawType(value) {\n  return _toString.call(value).slice(8, -1);\n}\n/**\n * Strict object type check. Only returns true\n * for plain JavaScript objects.\n */\n\n\nfunction isPlainObject(obj) {\n  return _toString.call(obj) === '[object Object]';\n}\n\nfunction isRegExp(v) {\n  return _toString.call(v) === '[object RegExp]';\n}\n/**\n * Check if val is a valid array index.\n */\n\n\nfunction isValidArrayIndex(val) {\n  var n = parseFloat(String(val));\n  return n >= 0 && Math.floor(n) === n && isFinite(val);\n}\n/**\n * Convert a value to a string that is actually rendered.\n */\n\n\nfunction toString(val) {\n  return val == null ? '' : typeof val === 'object' ? JSON.stringify(val, null, 2) : String(val);\n}\n/**\n * Convert a input value to a number for persistence.\n * If the conversion fails, return original string.\n */\n\n\nfunction toNumber(val) {\n  var n = parseFloat(val);\n  return isNaN(n) ? val : n;\n}\n/**\n * Make a map and return a function for checking if a key\n * is in that map.\n */\n\n\nfunction makeMap(str, expectsLowerCase) {\n  var map = Object.create(null);\n  var list = str.split(',');\n\n  for (var i = 0; i < list.length; i++) {\n    map[list[i]] = true;\n  }\n\n  return expectsLowerCase ? function (val) {\n    return map[val.toLowerCase()];\n  } : function (val) {\n    return map[val];\n  };\n}\n/**\n * Check if a tag is a built-in tag.\n */\n\n\nvar isBuiltInTag = makeMap('slot,component', true);\n/**\n * Check if a attribute is a reserved attribute.\n */\n\nvar isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');\n/**\n * Remove an item from an array\n */\n\nfunction remove(arr, item) {\n  if (arr.length) {\n    var index = arr.indexOf(item);\n\n    if (index > -1) {\n      return arr.splice(index, 1);\n    }\n  }\n}\n/**\n * Check whether the object has the property.\n */\n\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nfunction hasOwn(obj, key) {\n  return hasOwnProperty.call(obj, key);\n}\n/**\n * Create a cached version of a pure function.\n */\n\n\nfunction cached(fn) {\n  var cache = Object.create(null);\n  return function cachedFn(str) {\n    var hit = cache[str];\n    return hit || (cache[str] = fn(str));\n  };\n}\n/**\n * Camelize a hyphen-delimited string.\n */\n\n\nvar camelizeRE = /-(\\w)/g;\nvar camelize = cached(function (str) {\n  return str.replace(camelizeRE, function (_, c) {\n    return c ? c.toUpperCase() : '';\n  });\n});\n/**\n * Capitalize a string.\n */\n\nvar capitalize = cached(function (str) {\n  return str.charAt(0).toUpperCase() + str.slice(1);\n});\n/**\n * Hyphenate a camelCase string.\n */\n\nvar hyphenateRE = /\\B([A-Z])/g;\nvar hyphenate = cached(function (str) {\n  return str.replace(hyphenateRE, '-$1').toLowerCase();\n});\n/**\n * Simple bind polyfill for environments that do not support it... e.g.\n * PhantomJS 1.x. Technically we don't need this anymore since native bind is\n * now more performant in most browsers, but removing it would be breaking for\n * code that was able to run in PhantomJS 1.x, so this must be kept for\n * backwards compatibility.\n */\n\n/* istanbul ignore next */\n\nfunction polyfillBind(fn, ctx) {\n  function boundFn(a) {\n    var l = arguments.length;\n    return l ? l > 1 ? fn.apply(ctx, arguments) : fn.call(ctx, a) : fn.call(ctx);\n  }\n\n  boundFn._length = fn.length;\n  return boundFn;\n}\n\nfunction nativeBind(fn, ctx) {\n  return fn.bind(ctx);\n}\n\nvar bind = Function.prototype.bind ? nativeBind : polyfillBind;\n/**\n * Convert an Array-like object to a real Array.\n */\n\nfunction toArray(list, start) {\n  start = start || 0;\n  var i = list.length - start;\n  var ret = new Array(i);\n\n  while (i--) {\n    ret[i] = list[i + start];\n  }\n\n  return ret;\n}\n/**\n * Mix properties into target object.\n */\n\n\nfunction extend(to, _from) {\n  for (var key in _from) {\n    to[key] = _from[key];\n  }\n\n  return to;\n}\n/**\n * Merge an Array of Objects into a single Object.\n */\n\n\nfunction toObject(arr) {\n  var res = {};\n\n  for (var i = 0; i < arr.length; i++) {\n    if (arr[i]) {\n      extend(res, arr[i]);\n    }\n  }\n\n  return res;\n}\n/**\n * Perform no operation.\n * Stubbing args to make Flow happy without leaving useless transpiled code\n * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)\n */\n\n\nfunction noop(a, b, c) {}\n/**\n * Always return false.\n */\n\n\nvar no = function (a, b, c) {\n  return false;\n};\n/**\n * Return same value\n */\n\n\nvar identity = function (_) {\n  return _;\n};\n/**\n * Generate a static keys string from compiler modules.\n */\n\n/**\n * Check if two values are loosely equal - that is,\n * if they are plain objects, do they have the same shape?\n */\n\n\nfunction looseEqual(a, b) {\n  if (a === b) {\n    return true;\n  }\n\n  var isObjectA = isObject(a);\n  var isObjectB = isObject(b);\n\n  if (isObjectA && isObjectB) {\n    try {\n      var isArrayA = Array.isArray(a);\n      var isArrayB = Array.isArray(b);\n\n      if (isArrayA && isArrayB) {\n        return a.length === b.length && a.every(function (e, i) {\n          return looseEqual(e, b[i]);\n        });\n      } else if (!isArrayA && !isArrayB) {\n        var keysA = Object.keys(a);\n        var keysB = Object.keys(b);\n        return keysA.length === keysB.length && keysA.every(function (key) {\n          return looseEqual(a[key], b[key]);\n        });\n      } else {\n        /* istanbul ignore next */\n        return false;\n      }\n    } catch (e) {\n      /* istanbul ignore next */\n      return false;\n    }\n  } else if (!isObjectA && !isObjectB) {\n    return String(a) === String(b);\n  } else {\n    return false;\n  }\n}\n\nfunction looseIndexOf(arr, val) {\n  for (var i = 0; i < arr.length; i++) {\n    if (looseEqual(arr[i], val)) {\n      return i;\n    }\n  }\n\n  return -1;\n}\n/**\n * Ensure a function is called only once.\n */\n\n\nfunction once(fn) {\n  var called = false;\n  return function () {\n    if (!called) {\n      called = true;\n      fn.apply(this, arguments);\n    }\n  };\n}\n\nvar SSR_ATTR = 'data-server-rendered';\nvar ASSET_TYPES = ['component', 'directive', 'filter'];\nvar LIFECYCLE_HOOKS = ['beforeCreate', 'created', 'beforeMount', 'mounted', 'beforeUpdate', 'updated', 'beforeDestroy', 'destroyed', 'activated', 'deactivated', 'errorCaptured'];\n/*  */\n\nvar config = {\n  /**\n   * Option merge strategies (used in core/util/options)\n   */\n  // $flow-disable-line\n  optionMergeStrategies: Object.create(null),\n\n  /**\n   * Whether to suppress warnings.\n   */\n  silent: false,\n\n  /**\n   * Show production mode tip message on boot?\n   */\n  productionTip: \"development\" !== 'production',\n\n  /**\n   * Whether to enable devtools\n   */\n  devtools: \"development\" !== 'production',\n\n  /**\n   * Whether to record perf\n   */\n  performance: false,\n\n  /**\n   * Error handler for watcher errors\n   */\n  errorHandler: null,\n\n  /**\n   * Warn handler for watcher warns\n   */\n  warnHandler: null,\n\n  /**\n   * Ignore certain custom elements\n   */\n  ignoredElements: [],\n\n  /**\n   * Custom user key aliases for v-on\n   */\n  // $flow-disable-line\n  keyCodes: Object.create(null),\n\n  /**\n   * Check if a tag is reserved so that it cannot be registered as a\n   * component. This is platform-dependent and may be overwritten.\n   */\n  isReservedTag: no,\n\n  /**\n   * Check if an attribute is reserved so that it cannot be used as a component\n   * prop. This is platform-dependent and may be overwritten.\n   */\n  isReservedAttr: no,\n\n  /**\n   * Check if a tag is an unknown element.\n   * Platform-dependent.\n   */\n  isUnknownElement: no,\n\n  /**\n   * Get the namespace of an element\n   */\n  getTagNamespace: noop,\n\n  /**\n   * Parse the real tag name for the specific platform.\n   */\n  parsePlatformTagName: identity,\n\n  /**\n   * Check if an attribute must be bound using property, e.g. value\n   * Platform-dependent.\n   */\n  mustUseProp: no,\n\n  /**\n   * Exposed for legacy reasons\n   */\n  _lifecycleHooks: LIFECYCLE_HOOKS\n};\n/*  */\n\n/**\n * Check if a string starts with $ or _\n */\n\nfunction isReserved(str) {\n  var c = (str + '').charCodeAt(0);\n  return c === 0x24 || c === 0x5F;\n}\n/**\n * Define a property.\n */\n\n\nfunction def(obj, key, val, enumerable) {\n  Object.defineProperty(obj, key, {\n    value: val,\n    enumerable: !!enumerable,\n    writable: true,\n    configurable: true\n  });\n}\n/**\n * Parse simple path.\n */\n\n\nvar bailRE = /[^\\w.$]/;\n\nfunction parsePath(path) {\n  if (bailRE.test(path)) {\n    return;\n  }\n\n  var segments = path.split('.');\n  return function (obj) {\n    for (var i = 0; i < segments.length; i++) {\n      if (!obj) {\n        return;\n      }\n\n      obj = obj[segments[i]];\n    }\n\n    return obj;\n  };\n}\n/*  */\n// can we use __proto__?\n\n\nvar hasProto = '__proto__' in {}; // Browser environment sniffing\n\nvar inBrowser = typeof window !== 'undefined';\nvar inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;\nvar weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();\nvar UA = inBrowser && window.navigator.userAgent.toLowerCase();\nvar isIE = UA && /msie|trident/.test(UA);\nvar isIE9 = UA && UA.indexOf('msie 9.0') > 0;\nvar isEdge = UA && UA.indexOf('edge/') > 0;\nvar isAndroid = UA && UA.indexOf('android') > 0 || weexPlatform === 'android';\nvar isIOS = UA && /iphone|ipad|ipod|ios/.test(UA) || weexPlatform === 'ios';\nvar isChrome = UA && /chrome\\/\\d+/.test(UA) && !isEdge; // Firefox has a \"watch\" function on Object.prototype...\n\nvar nativeWatch = {}.watch;\nvar supportsPassive = false;\n\nif (inBrowser) {\n  try {\n    var opts = {};\n    Object.defineProperty(opts, 'passive', {\n      get: function get() {\n        /* istanbul ignore next */\n        supportsPassive = true;\n      }\n    }); // https://github.com/facebook/flow/issues/285\n\n    window.addEventListener('test-passive', null, opts);\n  } catch (e) {}\n} // this needs to be lazy-evaled because vue may be required before\n// vue-server-renderer can set VUE_ENV\n\n\nvar _isServer;\n\nvar isServerRendering = function () {\n  if (_isServer === undefined) {\n    /* istanbul ignore if */\n    if (!inBrowser && !inWeex && typeof global !== 'undefined') {\n      // detect presence of vue-server-renderer and avoid\n      // Webpack shimming the process\n      _isServer = global['process'].env.VUE_ENV === 'server';\n    } else {\n      _isServer = false;\n    }\n  }\n\n  return _isServer;\n}; // detect devtools\n\n\nvar devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;\n/* istanbul ignore next */\n\nfunction isNative(Ctor) {\n  return typeof Ctor === 'function' && /native code/.test(Ctor.toString());\n}\n\nvar hasSymbol = typeof Symbol !== 'undefined' && isNative(Symbol) && typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);\n\nvar _Set;\n/* istanbul ignore if */\n// $flow-disable-line\n\n\nif (typeof Set !== 'undefined' && isNative(Set)) {\n  // use native Set when available.\n  _Set = Set;\n} else {\n  // a non-standard Set polyfill that only works with primitive keys.\n  _Set = function () {\n    function Set() {\n      this.set = Object.create(null);\n    }\n\n    Set.prototype.has = function has(key) {\n      return this.set[key] === true;\n    };\n\n    Set.prototype.add = function add(key) {\n      this.set[key] = true;\n    };\n\n    Set.prototype.clear = function clear() {\n      this.set = Object.create(null);\n    };\n\n    return Set;\n  }();\n}\n/*  */\n\n\nvar warn = noop;\nvar tip = noop;\nvar generateComponentTrace = noop; // work around flow check\n\nvar formatComponentName = noop;\n\nif (\"development\" !== 'production') {\n  var hasConsole = typeof console !== 'undefined';\n  var classifyRE = /(?:^|[-_])(\\w)/g;\n\n  var classify = function (str) {\n    return str.replace(classifyRE, function (c) {\n      return c.toUpperCase();\n    }).replace(/[-_]/g, '');\n  };\n\n  warn = function (msg, vm) {\n    var trace = vm ? generateComponentTrace(vm) : '';\n\n    if (config.warnHandler) {\n      config.warnHandler.call(null, msg, vm, trace);\n    } else if (hasConsole && !config.silent) {\n      console.error(\"[Vue warn]: \" + msg + trace);\n    }\n  };\n\n  tip = function (msg, vm) {\n    if (hasConsole && !config.silent) {\n      console.warn(\"[Vue tip]: \" + msg + (vm ? generateComponentTrace(vm) : ''));\n    }\n  };\n\n  formatComponentName = function (vm, includeFile) {\n    if (vm.$root === vm) {\n      return '<Root>';\n    }\n\n    var options = typeof vm === 'function' && vm.cid != null ? vm.options : vm._isVue ? vm.$options || vm.constructor.options : vm || {};\n    var name = options.name || options._componentTag;\n    var file = options.__file;\n\n    if (!name && file) {\n      var match = file.match(/([^/\\\\]+)\\.vue$/);\n      name = match && match[1];\n    }\n\n    return (name ? \"<\" + classify(name) + \">\" : \"<Anonymous>\") + (file && includeFile !== false ? \" at \" + file : '');\n  };\n\n  var repeat = function (str, n) {\n    var res = '';\n\n    while (n) {\n      if (n % 2 === 1) {\n        res += str;\n      }\n\n      if (n > 1) {\n        str += str;\n      }\n\n      n >>= 1;\n    }\n\n    return res;\n  };\n\n  generateComponentTrace = function (vm) {\n    if (vm._isVue && vm.$parent) {\n      var tree = [];\n      var currentRecursiveSequence = 0;\n\n      while (vm) {\n        if (tree.length > 0) {\n          var last = tree[tree.length - 1];\n\n          if (last.constructor === vm.constructor) {\n            currentRecursiveSequence++;\n            vm = vm.$parent;\n            continue;\n          } else if (currentRecursiveSequence > 0) {\n            tree[tree.length - 1] = [last, currentRecursiveSequence];\n            currentRecursiveSequence = 0;\n          }\n        }\n\n        tree.push(vm);\n        vm = vm.$parent;\n      }\n\n      return '\\n\\nfound in\\n\\n' + tree.map(function (vm, i) {\n        return \"\" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm) ? formatComponentName(vm[0]) + \"... (\" + vm[1] + \" recursive calls)\" : formatComponentName(vm));\n      }).join('\\n');\n    } else {\n      return \"\\n\\n(found in \" + formatComponentName(vm) + \")\";\n    }\n  };\n}\n/*  */\n\n\nvar uid = 0;\n/**\n * A dep is an observable that can have multiple\n * directives subscribing to it.\n */\n\nvar Dep = function Dep() {\n  this.id = uid++;\n  this.subs = [];\n};\n\nDep.prototype.addSub = function addSub(sub) {\n  this.subs.push(sub);\n};\n\nDep.prototype.removeSub = function removeSub(sub) {\n  remove(this.subs, sub);\n};\n\nDep.prototype.depend = function depend() {\n  if (Dep.target) {\n    Dep.target.addDep(this);\n  }\n};\n\nDep.prototype.notify = function notify() {\n  // stabilize the subscriber list first\n  var subs = this.subs.slice();\n\n  for (var i = 0, l = subs.length; i < l; i++) {\n    subs[i].update();\n  }\n}; // the current target watcher being evaluated.\n// this is globally unique because there could be only one\n// watcher being evaluated at any time.\n\n\nDep.target = null;\nvar targetStack = [];\n\nfunction pushTarget(_target) {\n  if (Dep.target) {\n    targetStack.push(Dep.target);\n  }\n\n  Dep.target = _target;\n}\n\nfunction popTarget() {\n  Dep.target = targetStack.pop();\n}\n/*  */\n\n\nvar VNode = function VNode(tag, data, children, text, elm, context, componentOptions, asyncFactory) {\n  this.tag = tag;\n  this.data = data;\n  this.children = children;\n  this.text = text;\n  this.elm = elm;\n  this.ns = undefined;\n  this.context = context;\n  this.fnContext = undefined;\n  this.fnOptions = undefined;\n  this.fnScopeId = undefined;\n  this.key = data && data.key;\n  this.componentOptions = componentOptions;\n  this.componentInstance = undefined;\n  this.parent = undefined;\n  this.raw = false;\n  this.isStatic = false;\n  this.isRootInsert = true;\n  this.isComment = false;\n  this.isCloned = false;\n  this.isOnce = false;\n  this.asyncFactory = asyncFactory;\n  this.asyncMeta = undefined;\n  this.isAsyncPlaceholder = false;\n};\n\nvar prototypeAccessors = {\n  child: {\n    configurable: true\n  }\n}; // DEPRECATED: alias for componentInstance for backwards compat.\n\n/* istanbul ignore next */\n\nprototypeAccessors.child.get = function () {\n  return this.componentInstance;\n};\n\nObject.defineProperties(VNode.prototype, prototypeAccessors);\n\nvar createEmptyVNode = function (text) {\n  if (text === void 0) text = '';\n  var node = new VNode();\n  node.text = text;\n  node.isComment = true;\n  return node;\n};\n\nfunction createTextVNode(val) {\n  return new VNode(undefined, undefined, undefined, String(val));\n} // optimized shallow clone\n// used for static nodes and slot nodes because they may be reused across\n// multiple renders, cloning them avoids errors when DOM manipulations rely\n// on their elm reference.\n\n\nfunction cloneVNode(vnode) {\n  var cloned = new VNode(vnode.tag, vnode.data, vnode.children, vnode.text, vnode.elm, vnode.context, vnode.componentOptions, vnode.asyncFactory);\n  cloned.ns = vnode.ns;\n  cloned.isStatic = vnode.isStatic;\n  cloned.key = vnode.key;\n  cloned.isComment = vnode.isComment;\n  cloned.fnContext = vnode.fnContext;\n  cloned.fnOptions = vnode.fnOptions;\n  cloned.fnScopeId = vnode.fnScopeId;\n  cloned.isCloned = true;\n  return cloned;\n}\n/*\n * not type checking this file because flow doesn't play well with\n * dynamically accessing methods on Array prototype\n */\n\n\nvar arrayProto = Array.prototype;\nvar arrayMethods = Object.create(arrayProto);\nvar methodsToPatch = ['push', 'pop', 'shift', 'unshift', 'splice', 'sort', 'reverse'];\n/**\n * Intercept mutating methods and emit events\n */\n\nmethodsToPatch.forEach(function (method) {\n  // cache original method\n  var original = arrayProto[method];\n  def(arrayMethods, method, function mutator() {\n    var args = [],\n        len = arguments.length;\n\n    while (len--) args[len] = arguments[len];\n\n    var result = original.apply(this, args);\n    var ob = this.__ob__;\n    var inserted;\n\n    switch (method) {\n      case 'push':\n      case 'unshift':\n        inserted = args;\n        break;\n\n      case 'splice':\n        inserted = args.slice(2);\n        break;\n    }\n\n    if (inserted) {\n      ob.observeArray(inserted);\n    } // notify change\n\n\n    ob.dep.notify();\n    return result;\n  });\n});\n/*  */\n\nvar arrayKeys = Object.getOwnPropertyNames(arrayMethods);\n/**\n * In some cases we may want to disable observation inside a component's\n * update computation.\n */\n\nvar shouldObserve = true;\n\nfunction toggleObserving(value) {\n  shouldObserve = value;\n}\n/**\n * Observer class that is attached to each observed\n * object. Once attached, the observer converts the target\n * object's property keys into getter/setters that\n * collect dependencies and dispatch updates.\n */\n\n\nvar Observer = function Observer(value) {\n  this.value = value;\n  this.dep = new Dep();\n  this.vmCount = 0;\n  def(value, '__ob__', this);\n\n  if (Array.isArray(value)) {\n    var augment = hasProto ? protoAugment : copyAugment;\n    augment(value, arrayMethods, arrayKeys);\n    this.observeArray(value);\n  } else {\n    this.walk(value);\n  }\n};\n/**\n * Walk through each property and convert them into\n * getter/setters. This method should only be called when\n * value type is Object.\n */\n\n\nObserver.prototype.walk = function walk(obj) {\n  var keys = Object.keys(obj);\n\n  for (var i = 0; i < keys.length; i++) {\n    defineReactive(obj, keys[i]);\n  }\n};\n/**\n * Observe a list of Array items.\n */\n\n\nObserver.prototype.observeArray = function observeArray(items) {\n  for (var i = 0, l = items.length; i < l; i++) {\n    observe(items[i]);\n  }\n}; // helpers\n\n/**\n * Augment an target Object or Array by intercepting\n * the prototype chain using __proto__\n */\n\n\nfunction protoAugment(target, src, keys) {\n  /* eslint-disable no-proto */\n  target.__proto__ = src;\n  /* eslint-enable no-proto */\n}\n/**\n * Augment an target Object or Array by defining\n * hidden properties.\n */\n\n/* istanbul ignore next */\n\n\nfunction copyAugment(target, src, keys) {\n  for (var i = 0, l = keys.length; i < l; i++) {\n    var key = keys[i];\n    def(target, key, src[key]);\n  }\n}\n/**\n * Attempt to create an observer instance for a value,\n * returns the new observer if successfully observed,\n * or the existing observer if the value already has one.\n */\n\n\nfunction observe(value, asRootData) {\n  if (!isObject(value) || value instanceof VNode) {\n    return;\n  }\n\n  var ob;\n\n  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {\n    ob = value.__ob__;\n  } else if (shouldObserve && !isServerRendering() && (Array.isArray(value) || isPlainObject(value)) && Object.isExtensible(value) && !value._isVue) {\n    ob = new Observer(value);\n  }\n\n  if (asRootData && ob) {\n    ob.vmCount++;\n  }\n\n  return ob;\n}\n/**\n * Define a reactive property on an Object.\n */\n\n\nfunction defineReactive(obj, key, val, customSetter, shallow) {\n  var dep = new Dep();\n  var property = Object.getOwnPropertyDescriptor(obj, key);\n\n  if (property && property.configurable === false) {\n    return;\n  } // cater for pre-defined getter/setters\n\n\n  var getter = property && property.get;\n\n  if (!getter && arguments.length === 2) {\n    val = obj[key];\n  }\n\n  var setter = property && property.set;\n  var childOb = !shallow && observe(val);\n  Object.defineProperty(obj, key, {\n    enumerable: true,\n    configurable: true,\n    get: function reactiveGetter() {\n      var value = getter ? getter.call(obj) : val;\n\n      if (Dep.target) {\n        dep.depend();\n\n        if (childOb) {\n          childOb.dep.depend();\n\n          if (Array.isArray(value)) {\n            dependArray(value);\n          }\n        }\n      }\n\n      return value;\n    },\n    set: function reactiveSetter(newVal) {\n      var value = getter ? getter.call(obj) : val;\n      /* eslint-disable no-self-compare */\n\n      if (newVal === value || newVal !== newVal && value !== value) {\n        return;\n      }\n      /* eslint-enable no-self-compare */\n\n\n      if (\"development\" !== 'production' && customSetter) {\n        customSetter();\n      }\n\n      if (setter) {\n        setter.call(obj, newVal);\n      } else {\n        val = newVal;\n      }\n\n      childOb = !shallow && observe(newVal);\n      dep.notify();\n    }\n  });\n}\n/**\n * Set a property on an object. Adds the new property and\n * triggers change notification if the property doesn't\n * already exist.\n */\n\n\nfunction set(target, key, val) {\n  if (\"development\" !== 'production' && (isUndef(target) || isPrimitive(target))) {\n    warn(\"Cannot set reactive property on undefined, null, or primitive value: \" + target);\n  }\n\n  if (Array.isArray(target) && isValidArrayIndex(key)) {\n    target.length = Math.max(target.length, key);\n    target.splice(key, 1, val);\n    return val;\n  }\n\n  if (key in target && !(key in Object.prototype)) {\n    target[key] = val;\n    return val;\n  }\n\n  var ob = target.__ob__;\n\n  if (target._isVue || ob && ob.vmCount) {\n    \"development\" !== 'production' && warn('Avoid adding reactive properties to a Vue instance or its root $data ' + 'at runtime - declare it upfront in the data option.');\n    return val;\n  }\n\n  if (!ob) {\n    target[key] = val;\n    return val;\n  }\n\n  defineReactive(ob.value, key, val);\n  ob.dep.notify();\n  return val;\n}\n/**\n * Delete a property and trigger change if necessary.\n */\n\n\nfunction del(target, key) {\n  if (\"development\" !== 'production' && (isUndef(target) || isPrimitive(target))) {\n    warn(\"Cannot delete reactive property on undefined, null, or primitive value: \" + target);\n  }\n\n  if (Array.isArray(target) && isValidArrayIndex(key)) {\n    target.splice(key, 1);\n    return;\n  }\n\n  var ob = target.__ob__;\n\n  if (target._isVue || ob && ob.vmCount) {\n    \"development\" !== 'production' && warn('Avoid deleting properties on a Vue instance or its root $data ' + '- just set it to null.');\n    return;\n  }\n\n  if (!hasOwn(target, key)) {\n    return;\n  }\n\n  delete target[key];\n\n  if (!ob) {\n    return;\n  }\n\n  ob.dep.notify();\n}\n/**\n * Collect dependencies on array elements when the array is touched, since\n * we cannot intercept array element access like property getters.\n */\n\n\nfunction dependArray(value) {\n  for (var e = void 0, i = 0, l = value.length; i < l; i++) {\n    e = value[i];\n    e && e.__ob__ && e.__ob__.dep.depend();\n\n    if (Array.isArray(e)) {\n      dependArray(e);\n    }\n  }\n}\n/*  */\n\n/**\n * Option overwriting strategies are functions that handle\n * how to merge a parent option value and a child option\n * value into the final value.\n */\n\n\nvar strats = config.optionMergeStrategies;\n/**\n * Options with restrictions\n */\n\nif (\"development\" !== 'production') {\n  strats.el = strats.propsData = function (parent, child, vm, key) {\n    if (!vm) {\n      warn(\"option \\\"\" + key + \"\\\" can only be used during instance \" + 'creation with the `new` keyword.');\n    }\n\n    return defaultStrat(parent, child);\n  };\n}\n/**\n * Helper that recursively merges two data objects together.\n */\n\n\nfunction mergeData(to, from) {\n  if (!from) {\n    return to;\n  }\n\n  var key, toVal, fromVal;\n  var keys = Object.keys(from);\n\n  for (var i = 0; i < keys.length; i++) {\n    key = keys[i];\n    toVal = to[key];\n    fromVal = from[key];\n\n    if (!hasOwn(to, key)) {\n      set(to, key, fromVal);\n    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {\n      mergeData(toVal, fromVal);\n    }\n  }\n\n  return to;\n}\n/**\n * Data\n */\n\n\nfunction mergeDataOrFn(parentVal, childVal, vm) {\n  if (!vm) {\n    // in a Vue.extend merge, both should be functions\n    if (!childVal) {\n      return parentVal;\n    }\n\n    if (!parentVal) {\n      return childVal;\n    } // when parentVal & childVal are both present,\n    // we need to return a function that returns the\n    // merged result of both functions... no need to\n    // check if parentVal is a function here because\n    // it has to be a function to pass previous merges.\n\n\n    return function mergedDataFn() {\n      return mergeData(typeof childVal === 'function' ? childVal.call(this, this) : childVal, typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal);\n    };\n  } else {\n    return function mergedInstanceDataFn() {\n      // instance merge\n      var instanceData = typeof childVal === 'function' ? childVal.call(vm, vm) : childVal;\n      var defaultData = typeof parentVal === 'function' ? parentVal.call(vm, vm) : parentVal;\n\n      if (instanceData) {\n        return mergeData(instanceData, defaultData);\n      } else {\n        return defaultData;\n      }\n    };\n  }\n}\n\nstrats.data = function (parentVal, childVal, vm) {\n  if (!vm) {\n    if (childVal && typeof childVal !== 'function') {\n      \"development\" !== 'production' && warn('The \"data\" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.', vm);\n      return parentVal;\n    }\n\n    return mergeDataOrFn(parentVal, childVal);\n  }\n\n  return mergeDataOrFn(parentVal, childVal, vm);\n};\n/**\n * Hooks and props are merged as arrays.\n */\n\n\nfunction mergeHook(parentVal, childVal) {\n  return childVal ? parentVal ? parentVal.concat(childVal) : Array.isArray(childVal) ? childVal : [childVal] : parentVal;\n}\n\nLIFECYCLE_HOOKS.forEach(function (hook) {\n  strats[hook] = mergeHook;\n});\n/**\n * Assets\n *\n * When a vm is present (instance creation), we need to do\n * a three-way merge between constructor options, instance\n * options and parent options.\n */\n\nfunction mergeAssets(parentVal, childVal, vm, key) {\n  var res = Object.create(parentVal || null);\n\n  if (childVal) {\n    \"development\" !== 'production' && assertObjectType(key, childVal, vm);\n    return extend(res, childVal);\n  } else {\n    return res;\n  }\n}\n\nASSET_TYPES.forEach(function (type) {\n  strats[type + 's'] = mergeAssets;\n});\n/**\n * Watchers.\n *\n * Watchers hashes should not overwrite one\n * another, so we merge them as arrays.\n */\n\nstrats.watch = function (parentVal, childVal, vm, key) {\n  // work around Firefox's Object.prototype.watch...\n  if (parentVal === nativeWatch) {\n    parentVal = undefined;\n  }\n\n  if (childVal === nativeWatch) {\n    childVal = undefined;\n  }\n  /* istanbul ignore if */\n\n\n  if (!childVal) {\n    return Object.create(parentVal || null);\n  }\n\n  if (\"development\" !== 'production') {\n    assertObjectType(key, childVal, vm);\n  }\n\n  if (!parentVal) {\n    return childVal;\n  }\n\n  var ret = {};\n  extend(ret, parentVal);\n\n  for (var key$1 in childVal) {\n    var parent = ret[key$1];\n    var child = childVal[key$1];\n\n    if (parent && !Array.isArray(parent)) {\n      parent = [parent];\n    }\n\n    ret[key$1] = parent ? parent.concat(child) : Array.isArray(child) ? child : [child];\n  }\n\n  return ret;\n};\n/**\n * Other object hashes.\n */\n\n\nstrats.props = strats.methods = strats.inject = strats.computed = function (parentVal, childVal, vm, key) {\n  if (childVal && \"development\" !== 'production') {\n    assertObjectType(key, childVal, vm);\n  }\n\n  if (!parentVal) {\n    return childVal;\n  }\n\n  var ret = Object.create(null);\n  extend(ret, parentVal);\n\n  if (childVal) {\n    extend(ret, childVal);\n  }\n\n  return ret;\n};\n\nstrats.provide = mergeDataOrFn;\n/**\n * Default strategy.\n */\n\nvar defaultStrat = function (parentVal, childVal) {\n  return childVal === undefined ? parentVal : childVal;\n};\n/**\n * Validate component names\n */\n\n\nfunction checkComponents(options) {\n  for (var key in options.components) {\n    validateComponentName(key);\n  }\n}\n\nfunction validateComponentName(name) {\n  if (!/^[a-zA-Z][\\w-]*$/.test(name)) {\n    warn('Invalid component name: \"' + name + '\". Component names ' + 'can only contain alphanumeric characters and the hyphen, ' + 'and must start with a letter.');\n  }\n\n  if (isBuiltInTag(name) || config.isReservedTag(name)) {\n    warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + name);\n  }\n}\n/**\n * Ensure all props option syntax are normalized into the\n * Object-based format.\n */\n\n\nfunction normalizeProps(options, vm) {\n  var props = options.props;\n\n  if (!props) {\n    return;\n  }\n\n  var res = {};\n  var i, val, name;\n\n  if (Array.isArray(props)) {\n    i = props.length;\n\n    while (i--) {\n      val = props[i];\n\n      if (typeof val === 'string') {\n        name = camelize(val);\n        res[name] = {\n          type: null\n        };\n      } else if (\"development\" !== 'production') {\n        warn('props must be strings when using array syntax.');\n      }\n    }\n  } else if (isPlainObject(props)) {\n    for (var key in props) {\n      val = props[key];\n      name = camelize(key);\n      res[name] = isPlainObject(val) ? val : {\n        type: val\n      };\n    }\n  } else if (\"development\" !== 'production') {\n    warn(\"Invalid value for option \\\"props\\\": expected an Array or an Object, \" + \"but got \" + toRawType(props) + \".\", vm);\n  }\n\n  options.props = res;\n}\n/**\n * Normalize all injections into Object-based format\n */\n\n\nfunction normalizeInject(options, vm) {\n  var inject = options.inject;\n\n  if (!inject) {\n    return;\n  }\n\n  var normalized = options.inject = {};\n\n  if (Array.isArray(inject)) {\n    for (var i = 0; i < inject.length; i++) {\n      normalized[inject[i]] = {\n        from: inject[i]\n      };\n    }\n  } else if (isPlainObject(inject)) {\n    for (var key in inject) {\n      var val = inject[key];\n      normalized[key] = isPlainObject(val) ? extend({\n        from: key\n      }, val) : {\n        from: val\n      };\n    }\n  } else if (\"development\" !== 'production') {\n    warn(\"Invalid value for option \\\"inject\\\": expected an Array or an Object, \" + \"but got \" + toRawType(inject) + \".\", vm);\n  }\n}\n/**\n * Normalize raw function directives into object format.\n */\n\n\nfunction normalizeDirectives(options) {\n  var dirs = options.directives;\n\n  if (dirs) {\n    for (var key in dirs) {\n      var def = dirs[key];\n\n      if (typeof def === 'function') {\n        dirs[key] = {\n          bind: def,\n          update: def\n        };\n      }\n    }\n  }\n}\n\nfunction assertObjectType(name, value, vm) {\n  if (!isPlainObject(value)) {\n    warn(\"Invalid value for option \\\"\" + name + \"\\\": expected an Object, \" + \"but got \" + toRawType(value) + \".\", vm);\n  }\n}\n/**\n * Merge two option objects into a new one.\n * Core utility used in both instantiation and inheritance.\n */\n\n\nfunction mergeOptions(parent, child, vm) {\n  if (\"development\" !== 'production') {\n    checkComponents(child);\n  }\n\n  if (typeof child === 'function') {\n    child = child.options;\n  }\n\n  normalizeProps(child, vm);\n  normalizeInject(child, vm);\n  normalizeDirectives(child);\n  var extendsFrom = child.extends;\n\n  if (extendsFrom) {\n    parent = mergeOptions(parent, extendsFrom, vm);\n  }\n\n  if (child.mixins) {\n    for (var i = 0, l = child.mixins.length; i < l; i++) {\n      parent = mergeOptions(parent, child.mixins[i], vm);\n    }\n  }\n\n  var options = {};\n  var key;\n\n  for (key in parent) {\n    mergeField(key);\n  }\n\n  for (key in child) {\n    if (!hasOwn(parent, key)) {\n      mergeField(key);\n    }\n  }\n\n  function mergeField(key) {\n    var strat = strats[key] || defaultStrat;\n    options[key] = strat(parent[key], child[key], vm, key);\n  }\n\n  return options;\n}\n/**\n * Resolve an asset.\n * This function is used because child instances need access\n * to assets defined in its ancestor chain.\n */\n\n\nfunction resolveAsset(options, type, id, warnMissing) {\n  /* istanbul ignore if */\n  if (typeof id !== 'string') {\n    return;\n  }\n\n  var assets = options[type]; // check local registration variations first\n\n  if (hasOwn(assets, id)) {\n    return assets[id];\n  }\n\n  var camelizedId = camelize(id);\n\n  if (hasOwn(assets, camelizedId)) {\n    return assets[camelizedId];\n  }\n\n  var PascalCaseId = capitalize(camelizedId);\n\n  if (hasOwn(assets, PascalCaseId)) {\n    return assets[PascalCaseId];\n  } // fallback to prototype chain\n\n\n  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];\n\n  if (\"development\" !== 'production' && warnMissing && !res) {\n    warn('Failed to resolve ' + type.slice(0, -1) + ': ' + id, options);\n  }\n\n  return res;\n}\n/*  */\n\n\nfunction validateProp(key, propOptions, propsData, vm) {\n  var prop = propOptions[key];\n  var absent = !hasOwn(propsData, key);\n  var value = propsData[key]; // boolean casting\n\n  var booleanIndex = getTypeIndex(Boolean, prop.type);\n\n  if (booleanIndex > -1) {\n    if (absent && !hasOwn(prop, 'default')) {\n      value = false;\n    } else if (value === '' || value === hyphenate(key)) {\n      // only cast empty string / same name to boolean if\n      // boolean has higher priority\n      var stringIndex = getTypeIndex(String, prop.type);\n\n      if (stringIndex < 0 || booleanIndex < stringIndex) {\n        value = true;\n      }\n    }\n  } // check default value\n\n\n  if (value === undefined) {\n    value = getPropDefaultValue(vm, prop, key); // since the default value is a fresh copy,\n    // make sure to observe it.\n\n    var prevShouldObserve = shouldObserve;\n    toggleObserving(true);\n    observe(value);\n    toggleObserving(prevShouldObserve);\n  }\n\n  if (\"development\" !== 'production' && // skip validation for weex recycle-list child component props\n  !(false && isObject(value) && '@binding' in value)) {\n    assertProp(prop, key, value, vm, absent);\n  }\n\n  return value;\n}\n/**\n * Get the default value of a prop.\n */\n\n\nfunction getPropDefaultValue(vm, prop, key) {\n  // no default, return undefined\n  if (!hasOwn(prop, 'default')) {\n    return undefined;\n  }\n\n  var def = prop.default; // warn against non-factory defaults for Object & Array\n\n  if (\"development\" !== 'production' && isObject(def)) {\n    warn('Invalid default value for prop \"' + key + '\": ' + 'Props with type Object/Array must use a factory function ' + 'to return the default value.', vm);\n  } // the raw prop value was also undefined from previous render,\n  // return previous default value to avoid unnecessary watcher trigger\n\n\n  if (vm && vm.$options.propsData && vm.$options.propsData[key] === undefined && vm._props[key] !== undefined) {\n    return vm._props[key];\n  } // call factory function for non-Function types\n  // a value is Function if its prototype is function even across different execution context\n\n\n  return typeof def === 'function' && getType(prop.type) !== 'Function' ? def.call(vm) : def;\n}\n/**\n * Assert whether a prop is valid.\n */\n\n\nfunction assertProp(prop, name, value, vm, absent) {\n  if (prop.required && absent) {\n    warn('Missing required prop: \"' + name + '\"', vm);\n    return;\n  }\n\n  if (value == null && !prop.required) {\n    return;\n  }\n\n  var type = prop.type;\n  var valid = !type || type === true;\n  var expectedTypes = [];\n\n  if (type) {\n    if (!Array.isArray(type)) {\n      type = [type];\n    }\n\n    for (var i = 0; i < type.length && !valid; i++) {\n      var assertedType = assertType(value, type[i]);\n      expectedTypes.push(assertedType.expectedType || '');\n      valid = assertedType.valid;\n    }\n  }\n\n  if (!valid) {\n    warn(\"Invalid prop: type check failed for prop \\\"\" + name + \"\\\".\" + \" Expected \" + expectedTypes.map(capitalize).join(', ') + \", got \" + toRawType(value) + \".\", vm);\n    return;\n  }\n\n  var validator = prop.validator;\n\n  if (validator) {\n    if (!validator(value)) {\n      warn('Invalid prop: custom validator check failed for prop \"' + name + '\".', vm);\n    }\n  }\n}\n\nvar simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;\n\nfunction assertType(value, type) {\n  var valid;\n  var expectedType = getType(type);\n\n  if (simpleCheckRE.test(expectedType)) {\n    var t = typeof value;\n    valid = t === expectedType.toLowerCase(); // for primitive wrapper objects\n\n    if (!valid && t === 'object') {\n      valid = value instanceof type;\n    }\n  } else if (expectedType === 'Object') {\n    valid = isPlainObject(value);\n  } else if (expectedType === 'Array') {\n    valid = Array.isArray(value);\n  } else {\n    valid = value instanceof type;\n  }\n\n  return {\n    valid: valid,\n    expectedType: expectedType\n  };\n}\n/**\n * Use function string name to check built-in types,\n * because a simple equality check will fail when running\n * across different vms / iframes.\n */\n\n\nfunction getType(fn) {\n  var match = fn && fn.toString().match(/^\\s*function (\\w+)/);\n  return match ? match[1] : '';\n}\n\nfunction isSameType(a, b) {\n  return getType(a) === getType(b);\n}\n\nfunction getTypeIndex(type, expectedTypes) {\n  if (!Array.isArray(expectedTypes)) {\n    return isSameType(expectedTypes, type) ? 0 : -1;\n  }\n\n  for (var i = 0, len = expectedTypes.length; i < len; i++) {\n    if (isSameType(expectedTypes[i], type)) {\n      return i;\n    }\n  }\n\n  return -1;\n}\n/*  */\n\n\nfunction handleError(err, vm, info) {\n  if (vm) {\n    var cur = vm;\n\n    while (cur = cur.$parent) {\n      var hooks = cur.$options.errorCaptured;\n\n      if (hooks) {\n        for (var i = 0; i < hooks.length; i++) {\n          try {\n            var capture = hooks[i].call(cur, err, vm, info) === false;\n\n            if (capture) {\n              return;\n            }\n          } catch (e) {\n            globalHandleError(e, cur, 'errorCaptured hook');\n          }\n        }\n      }\n    }\n  }\n\n  globalHandleError(err, vm, info);\n}\n\nfunction globalHandleError(err, vm, info) {\n  if (config.errorHandler) {\n    try {\n      return config.errorHandler.call(null, err, vm, info);\n    } catch (e) {\n      logError(e, null, 'config.errorHandler');\n    }\n  }\n\n  logError(err, vm, info);\n}\n\nfunction logError(err, vm, info) {\n  if (\"development\" !== 'production') {\n    warn(\"Error in \" + info + \": \\\"\" + err.toString() + \"\\\"\", vm);\n  }\n  /* istanbul ignore else */\n\n\n  if ((inBrowser || inWeex) && typeof console !== 'undefined') {\n    console.error(err);\n  } else {\n    throw err;\n  }\n}\n/*  */\n\n/* globals MessageChannel */\n\n\nvar callbacks = [];\nvar pending = false;\n\nfunction flushCallbacks() {\n  pending = false;\n  var copies = callbacks.slice(0);\n  callbacks.length = 0;\n\n  for (var i = 0; i < copies.length; i++) {\n    copies[i]();\n  }\n} // Here we have async deferring wrappers using both microtasks and (macro) tasks.\n// In < 2.4 we used microtasks everywhere, but there are some scenarios where\n// microtasks have too high a priority and fire in between supposedly\n// sequential events (e.g. #4521, #6690) or even between bubbling of the same\n// event (#6566). However, using (macro) tasks everywhere also has subtle problems\n// when state is changed right before repaint (e.g. #6813, out-in transitions).\n// Here we use microtask by default, but expose a way to force (macro) task when\n// needed (e.g. in event handlers attached by v-on).\n\n\nvar microTimerFunc;\nvar macroTimerFunc;\nvar useMacroTask = false; // Determine (macro) task defer implementation.\n// Technically setImmediate should be the ideal choice, but it's only available\n// in IE. The only polyfill that consistently queues the callback after all DOM\n// events triggered in the same loop is by using MessageChannel.\n\n/* istanbul ignore if */\n\nif (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {\n  macroTimerFunc = function () {\n    setImmediate(flushCallbacks);\n  };\n} else if (typeof MessageChannel !== 'undefined' && (isNative(MessageChannel) || // PhantomJS\nMessageChannel.toString() === '[object MessageChannelConstructor]')) {\n  var channel = new MessageChannel();\n  var port = channel.port2;\n  channel.port1.onmessage = flushCallbacks;\n\n  macroTimerFunc = function () {\n    port.postMessage(1);\n  };\n} else {\n  /* istanbul ignore next */\n  macroTimerFunc = function () {\n    setTimeout(flushCallbacks, 0);\n  };\n} // Determine microtask defer implementation.\n\n/* istanbul ignore next, $flow-disable-line */\n\n\nif (typeof Promise !== 'undefined' && isNative(Promise)) {\n  var p = Promise.resolve();\n\n  microTimerFunc = function () {\n    p.then(flushCallbacks); // in problematic UIWebViews, Promise.then doesn't completely break, but\n    // it can get stuck in a weird state where callbacks are pushed into the\n    // microtask queue but the queue isn't being flushed, until the browser\n    // needs to do some other work, e.g. handle a timer. Therefore we can\n    // \"force\" the microtask queue to be flushed by adding an empty timer.\n\n    if (isIOS) {\n      setTimeout(noop);\n    }\n  };\n} else {\n  // fallback to macro\n  microTimerFunc = macroTimerFunc;\n}\n/**\n * Wrap a function so that if any code inside triggers state change,\n * the changes are queued using a (macro) task instead of a microtask.\n */\n\n\nfunction withMacroTask(fn) {\n  return fn._withTask || (fn._withTask = function () {\n    useMacroTask = true;\n    var res = fn.apply(null, arguments);\n    useMacroTask = false;\n    return res;\n  });\n}\n\nfunction nextTick(cb, ctx) {\n  var _resolve;\n\n  callbacks.push(function () {\n    if (cb) {\n      try {\n        cb.call(ctx);\n      } catch (e) {\n        handleError(e, ctx, 'nextTick');\n      }\n    } else if (_resolve) {\n      _resolve(ctx);\n    }\n  });\n\n  if (!pending) {\n    pending = true;\n\n    if (useMacroTask) {\n      macroTimerFunc();\n    } else {\n      microTimerFunc();\n    }\n  } // $flow-disable-line\n\n\n  if (!cb && typeof Promise !== 'undefined') {\n    return new Promise(function (resolve) {\n      _resolve = resolve;\n    });\n  }\n}\n/*  */\n\n/* not type checking this file because flow doesn't play well with Proxy */\n\n\nvar initProxy;\n\nif (\"development\" !== 'production') {\n  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\n  );\n\n  var warnNonPresent = function (target, key) {\n    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);\n  };\n\n  var hasProxy = typeof Proxy !== 'undefined' && isNative(Proxy);\n\n  if (hasProxy) {\n    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');\n    config.keyCodes = new Proxy(config.keyCodes, {\n      set: function set(target, key, value) {\n        if (isBuiltInModifier(key)) {\n          warn(\"Avoid overwriting built-in modifier in config.keyCodes: .\" + key);\n          return false;\n        } else {\n          target[key] = value;\n          return true;\n        }\n      }\n    });\n  }\n\n  var hasHandler = {\n    has: function has(target, key) {\n      var has = key in target;\n      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';\n\n      if (!has && !isAllowed) {\n        warnNonPresent(target, key);\n      }\n\n      return has || !isAllowed;\n    }\n  };\n  var getHandler = {\n    get: function get(target, key) {\n      if (typeof key === 'string' && !(key in target)) {\n        warnNonPresent(target, key);\n      }\n\n      return target[key];\n    }\n  };\n\n  initProxy = function initProxy(vm) {\n    if (hasProxy) {\n      // determine which proxy handler to use\n      var options = vm.$options;\n      var handlers = options.render && options.render._withStripped ? getHandler : hasHandler;\n      vm._renderProxy = new Proxy(vm, handlers);\n    } else {\n      vm._renderProxy = vm;\n    }\n  };\n}\n/*  */\n\n\nvar seenObjects = new _Set();\n/**\n * Recursively traverse an object to evoke all converted\n * getters, so that every nested property inside the object\n * is collected as a \"deep\" dependency.\n */\n\nfunction traverse(val) {\n  _traverse(val, seenObjects);\n\n  seenObjects.clear();\n}\n\nfunction _traverse(val, seen) {\n  var i, keys;\n  var isA = Array.isArray(val);\n\n  if (!isA && !isObject(val) || Object.isFrozen(val) || val instanceof VNode) {\n    return;\n  }\n\n  if (val.__ob__) {\n    var depId = val.__ob__.dep.id;\n\n    if (seen.has(depId)) {\n      return;\n    }\n\n    seen.add(depId);\n  }\n\n  if (isA) {\n    i = val.length;\n\n    while (i--) {\n      _traverse(val[i], seen);\n    }\n  } else {\n    keys = Object.keys(val);\n    i = keys.length;\n\n    while (i--) {\n      _traverse(val[keys[i]], seen);\n    }\n  }\n}\n\nvar mark;\nvar measure;\n\nif (\"development\" !== 'production') {\n  var perf = inBrowser && window.performance;\n  /* istanbul ignore if */\n\n  if (perf && perf.mark && perf.measure && perf.clearMarks && perf.clearMeasures) {\n    mark = function (tag) {\n      return perf.mark(tag);\n    };\n\n    measure = function (name, startTag, endTag) {\n      perf.measure(name, startTag, endTag);\n      perf.clearMarks(startTag);\n      perf.clearMarks(endTag);\n      perf.clearMeasures(name);\n    };\n  }\n}\n/*  */\n\n\nvar normalizeEvent = cached(function (name) {\n  var passive = name.charAt(0) === '&';\n  name = passive ? name.slice(1) : name;\n  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first\n\n  name = once$$1 ? name.slice(1) : name;\n  var capture = name.charAt(0) === '!';\n  name = capture ? name.slice(1) : name;\n  return {\n    name: name,\n    once: once$$1,\n    capture: capture,\n    passive: passive\n  };\n});\n