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08335 / hivui-platform-template

hivui平台项目模板

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1 parent 0ac0401 commit 2d97f9a6eee95664a422597916d8850e660d5a9b caibinghong authored on 20 Jun 2023

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Ignore Space Show notes View assets_platform/vue/debug_vue.min.js 0 → 100644
/! Vue.js v2.6.14 * (c) 2014-2021 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], vm); expectedTypes.push(assertedType.expectedType \|\| ''); valid = assertedType.valid; } } var haveExpectedTypes = expectedTypes.some(function (t) { return t; }); if (!valid && haveExpectedTypes) { 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\|BigInt)$/; function assertType (value, type, vm) { 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 { try { valid = value instanceof type; } catch (e) { warn('Invalid prop type: "' + String(type) + '" is not a constructor', vm); valid = false; } } return { valid: valid, expectedType: expectedType } } var functionTypeCheckRE = /^\sfunction (\w+)/; /** * 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(functionTypeCheckRE); 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); // check if we need to specify expected value if ( expectedTypes.length === 1 && isExplicable(expectedType) && isExplicable(typeof value) && !isBoolean(expectedType, receivedType) ) { message += " with value " + (styleValue(value, expectedType)); } message += ", got " + receivedType + " "; // check if we need to specify received value if (isExplicable(receivedType)) { message += "with value " + (styleValue(value, receivedType)) + "."; } return message } function styleValue (value, type) { if (type === 'String') { return ("\"" + value + "\"") } else if (type === 'Number') { return ("" + (Number(value))) } else { return ("" + value) } } var EXPLICABLE_TYPES = ['string', 'number', 'boolean']; function isExplicable (value) { return EXPLICABLE_TYPES.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. // Technically 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,BigInt,' + '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 isAsyncPlaceholder (node) { return node.isComment && node.asyncFactory } / / 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); var vnode = res && res[0]; return res && ( !vnode \|\| (res.length === 1 && vnode.isComment && !isAsyncPlaceholder(vnode)) // #9658, #10391 ) ? 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, fallbackRender, 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) \|\| (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender); } else { nodes = this.$slots[name] \|\| (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender); } 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 } return eventKeyCode === undefined } / / /* * 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 special 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 ( // we know it's MountedComponentVNode but flow doesn't vnode, // activeInstance in lifecycle state parent ) { 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 if (isDef(data) && isDef(data.nativeOn) && data.tag !== 'component') { warn( ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."), context ); } 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 because 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 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) \|\| (!newScopedSlots && vm.$scopedSlots.$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) { var info = "callback for watcher \"" + (this.expression) + "\""; invokeWithErrorHandling(this.cb, this.vm, [value, oldValue], this.vm, info); } 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); } else if (vm.$options.methods && key in vm.$options.methods) { warn(("The computed property \"" + key + "\" is already defined as a method."), 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) { var info = "callback for immediate watcher \"" + (watcher.expression) + "\""; pushTarget(); invokeWithErrorHandling(cb, vm, [watcher.value], vm, info); popTarget(); } 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$1 (Comp) { var computed = Comp.options.computed; for (var key in computed) { defineComputed(Comp.prototype, key, computed[key]); } } / / function initAssetRegisters (Vue) { /* * Create asset registration methods. / ASSET_TYPES.forEach(function (type) { Vue[type] = function ( id, definition ) { console.log('--组件id--',type,id); if(id=='ElTable'){ debugger } if(id.indexOf('Hi')>-1){ // debugger } if (!definition) { return this.options[type + 's'][id] } else { / istanbul ignore if / if (type === 'component') { validateComponentName(id); } if (type === 'component' && isPlainObject(definition)) { definition.name = definition.name \|\| id; definition = this.options._base.extend(definition); } if (type === 'directive' && typeof definition === 'function') { definition = { bind: definition, update: definition }; } this.options[type + 's'][id] = definition; return definition } }; }); } / / function getComponentName (opts) { return opts && (opts.Ctor.options.name \|\| opts.tag) } function matches (pattern, name) { if (Array.isArray(pattern)) { return pattern.indexOf(name) > -1 } else if (typeof pattern === 'string') { return pattern.split(',').indexOf(name) > -1 } else if (isRegExp(pattern)) { return pattern.test(name) } / istanbul ignore next / return false } function pruneCache (keepAliveInstance, filter) { var cache = keepAliveInstance.cache; var keys = keepAliveInstance.keys; var _vnode = keepAliveInstance._vnode; for (var key in cache) { var entry = cache[key]; if (entry) { var name = entry.name; if (name && !filter(name)) { pruneCacheEntry(cache, key, keys, _vnode); } } } } function pruneCacheEntry ( cache, key, keys, current ) { var entry = cache[key]; if (entry && (!current \|\| entry.tag !== current.tag)) { entry.componentInstance.$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] }, methods: { cacheVNode: function cacheVNode() { var ref = this; var cache = ref.cache; var keys = ref.keys; var vnodeToCache = ref.vnodeToCache; var keyToCache = ref.keyToCache; if (vnodeToCache) { var tag = vnodeToCache.tag; var componentInstance = vnodeToCache.componentInstance; var componentOptions = vnodeToCache.componentOptions; cache[keyToCache] = { name: getComponentName(componentOptions), tag: tag, componentInstance: componentInstance, }; keys.push(keyToCache); // prune oldest entry if (this.max && keys.length > parseInt(this.max)) { pruneCacheEntry(cache, keys[0], keys, this._vnode); } this.vnodeToCache = null; } } }, 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$1 = this; this.cacheVNode(); this.$watch('include', function (val) { pruneCache(this$1, function (name) { return matches(val, name); }); }); this.$watch('exclude', function (val) { pruneCache(this$1, function (name) { return !matches(val, name); }); }); }, updated: function updated () { this.cacheVNode(); }, render: function render () { var slot = this.$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 { // delay setting the cache until update this.vnodeToCache = vnode; this.keyToCache = key; } 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 = '2.6.14'; / / // 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,' + '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.asyncFactory === b.asyncFactory && ( ( a.tag === b.tag && a.isComment === b.isComment && isDef(a.data) === isDef(b.data) && sameInputType(a, b) ) \|\| ( isTrue(a.isAsyncPlaceholder) && 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 (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(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(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([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, vnode.data.pre); } } // #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, isInPre) { if (isInPre \|\| 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 unnecessary `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 passed 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 = { '<': '<', '>': '>', '"': '"', '&': '&', ' ': '\n', ' ': '\t', ''': "'" }; 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 = /[ \f\t\r\n]+/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 \|\| el.attrsMap[':is'] \|\| el.attrsMap['v-bind:is'] \|\| !(el.attrsMap.is ? isReservedTag(el.attrsMap.is) : 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 anything 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 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 ("$event." + keyModifier + "Key"); }) .join('\|\|') ); } else { keys.push(key); } } if (keys.length) { code += genKeyFilter(keys); } // Make sure modifiers like prevent and stop get executed after key filtering if (genModifierCode) { code += genModifierCode; } var handlerCode = isMethodPath ? ("return " + (handler.value) + ".apply(null, arguments)") : isFunctionExpression ? ("return (" + (handler.value) + ").apply(null, arguments)") : isFunctionInvocation ? ("return " + (handler.value)) : handler.value; return ("function($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); // fix #11483, Root level <script> tags should not be rendered. var code = ast ? (ast.tag === 'script' ? 'null' : 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 ? (",function(){return " + 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 (name === 'v-slot' \|\| name[0] === '#') { checkFunctionParameterExpression(value, (name + "=\"" + 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 stripped = exp.replace(stripStringRE, ''); var keywordMatch = stripped.match(unaryOperatorsRE); if (keywordMatch && stripped.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 ); } } } function checkFunctionParameterExpression (exp, text, warn, range) { try { new Function(exp, ''); } catch (e) { warn( "invalid function parameter 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$1.compileToFunctions; / / // check whether current browser encodes a char inside attribute values var div; function getShouldDecode (href) { div = div \|\| document.createElement('div'); div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>"; return div.innerHTML.indexOf(' ') > 0 } // #3663: IE encodes newlines inside attribute values while other browsers don't var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false; // #6828: chrome encodes content in a[href] var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false; / / var idToTemplate = cached(function (id) { var el = query(id); return el && el.innerHTML }); var mount = Vue.prototype.$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; }));

Ignore Space Show notes View

assets_platform/vue/debug_vue.min.js 0 → 100644

/*!
 * Vue.js v2.6.14
 * (c) 2014-2021 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;

// 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];
    }

/**
   * 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);
        }
      }
    }

/**
   * 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
  }

/*  */

/**
   * 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], vm);
        expectedTypes.push(assertedType.expectedType || '');
        valid = assertedType.valid;
      }
    }

var functionTypeCheckRE = /^\s*function (\w+)/;

/**
   * 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(functionTypeCheckRE);
    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 styleValue (value, type) {
    if (type === 'String') {
      return ("\"" + value + "\"")
    } else if (type === 'Number') {
      return ("" + (Number(value)))
    } else {
      return ("" + value)
    }
  }

var EXPLICABLE_TYPES = ['string', 'number', 'boolean'];
  function isExplicable (value) {
    return EXPLICABLE_TYPES.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 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.
    // Technically 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);
    };
  }

/*  */

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,BigInt,' +
      '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
          }
        }
      });
    }

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();
  }

/*  */

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;

/*  */

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;
  }

/*  */

/*  */

// 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 initProvide (vm) {
    var provide = vm.$options.provide;
    if (provide) {
      vm._provided = typeof provide === 'function'
        ? provide.call(vm)
        : provide;
    }
  }

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 isAsyncPlaceholder (node) {
    return node.isComment && node.asyncFactory
  }

/*  */

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,
    fallbackRender,
    props,
    bindObject
  ) {
    var scopedSlotFn = this.$scopedSlots[name];
    var nodes;
    if (scopedSlotFn) {
      // scoped slot
      props = props || {};
      if (bindObject) {
        if (!isObject(bindObject)) {
          warn('slot v-bind without argument expects an Object', this);
        }
        props = extend(extend({}, bindObject), props);
      }
      nodes =
        scopedSlotFn(props) ||
        (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender);
    } else {
      nodes =
        this.$slots[name] ||
        (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender);
    }

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
    }
    return eventKeyCode === undefined
  }

/*  */

/**
   * 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 markStaticNode (node, key, isOnce) {
    node.isStatic = true;
    node.key = key;
    node.isOnce = isOnce;
  }

/*  */

/*  */

/*  */

// 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);

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 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 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)
  }

// 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.$vnode = _parentVnode;
      // render self
      var vnode;
      try {
        // There's no need to maintain a stack because all render fns are called
        // separately from one another. Nested component's render fns are called
        // when parent component is patched.
        currentRenderingInstance = vm;
        vnode = render.call(vm._renderProxy, vm.$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 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 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 updateComponentListeners (
    vm,
    listeners,
    oldListeners
  ) {
    target = vm;
    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
    target = undefined;
  }

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;
  }

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;
      }
    };
  }

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.$key) ||
      (!newScopedSlots && vm.$scopedSlots.$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
  }

/*  */

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');
    }
  }

/**
   * 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) {
          var info = "callback for watcher \"" + (this.expression) + "\"";
          invokeWithErrorHandling(this.cb, this.vm, [value, oldValue], this.vm, info);
        } 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
  };

for (var key in propsOptions) loop( key );
    toggleObserving(true);
  }

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.$options.props) {
          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
        } else if (vm.$options.methods && key in vm.$options.methods) {
          warn(("The computed property \"" + key + "\" is already defined as a method."), vm);
        }
      }
    }
  }

function createGetterInvoker(fn) {
    return function computedGetter () {
      return fn.call(this, this)
    }
  }

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) {
        var info = "callback for immediate watcher \"" + (watcher.expression) + "\"";
        pushTarget();
        invokeWithErrorHandling(cb, vm, [watcher.value], vm, info);
        popTarget();
      }
      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 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 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 pruneCacheEntry (
    cache,
    key,
    keys,
    current
  ) {
    var entry = cache[key];
    if (entry && (!current || entry.tag !== current.tag)) {
      entry.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]
    },

methods: {
      cacheVNode: function cacheVNode() {
        var ref = this;
        var cache = ref.cache;
        var keys = ref.keys;
        var vnodeToCache = ref.vnodeToCache;
        var keyToCache = ref.keyToCache;
        if (vnodeToCache) {
          var tag = vnodeToCache.tag;
          var componentInstance = vnodeToCache.componentInstance;
          var componentOptions = vnodeToCache.componentOptions;
          cache[keyToCache] = {
            name: getComponentName(componentOptions),
            tag: tag,
            componentInstance: componentInstance,
          };
          keys.push(keyToCache);
          // prune oldest entry
          if (this.max && keys.length > parseInt(this.max)) {
            pruneCacheEntry(cache, keys[0], keys, this._vnode);
          }
          this.vnodeToCache = null;
        }
      }
    },

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.cacheVNode();
      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); });
      });
    },

updated: function updated () {
      this.cacheVNode();
    },

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 {
          // delay setting the cache until update
          this.vnodeToCache = vnode;
          this.keyToCache = key;
        }

vnode.data.keepAlive = true;
      }
      return vnode || (slot && slot[0])
    }
  };

var builtInComponents = {
    KeepAlive: KeepAlive
  };

/*  */

// 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 = '2.6.14';

/*  */

// 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,' +
    '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 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 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 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
  });

/*  */

function registerRef (vnode, isRemoval) {
    var key = vnode.data.ref;
    if (!isDef(key)) { return }

/**
   * 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.asyncFactory === b.asyncFactory && (
        (
          a.tag === b.tag &&
          a.isComment === b.isComment &&
          isDef(a.data) === isDef(b.data) &&
          sameInputType(a, b)
        ) || (
          isTrue(a.isAsyncPlaceholder) &&
          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 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
      }

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 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 isPatchable (vnode) {
      while (vnode.componentInstance) {
        vnode = vnode.componentInstance._vnode;
      }
      return isDef(vnode.tag)
    }

// 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 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(oldCh, oldStartIdx, oldEndIdx);
      }
    }

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 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([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 getRawDirName (dir) {
    return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
  }

var baseModules = [
    ref,
    directives
  ];

/*  */

for (key in attrs) {
      cur = attrs[key];
      old = oldAttrs[key];
      if (old !== cur) {
        setAttr(elm, key, cur, vnode.data.pre);
      }
    }
    // #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);
        }
      }
    }
  }

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
  }

/*  */

/* 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;
    }

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 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 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 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;

// #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 remove$2 (
    name,
    handler,
    capture,
    _target
  ) {
    (_target || target$1).removeEventListener(
      name,
      handler._wrapper || handler,
      capture
    );
  }

var events = {
    create: updateDOMListeners,
    update: updateDOMListeners
  };

/*  */

var svgContainer;

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 unnecessary `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
  };

/*  */

// 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 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');
      }
    }
  }

/*  */

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);
  }

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);

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);
    }

if (delayLeave) {
      delayLeave(performLeave);
    } else {
      performLeave();
    }

// 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 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');
      }
    });
  }

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 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 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')
  });

/*  */

var klass$1 = {
    staticKeys: ['staticClass'],
    transformNode: transformNode,
    genData: genData
  };

/*  */

var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
    if (styleBinding) {
      el.styleBinding = styleBinding;
    }
  }

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 passed 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
          }
        }

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 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;

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 = /[ \f\t\r\n]+/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 ||
      el.attrsMap[':is'] ||
      el.attrsMap['v-bind:is'] ||
      !(el.attrsMap.is ? isReservedTag(el.attrsMap.is) : 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);
      }
    }

// 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 anything 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 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 processRef (el) {
    var ref = getBindingAttr(el, 'ref');
    if (ref) {
      el.ref = ref;
      el.refInFor = checkInFor(el);
    }
  }

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 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;
        }
      }
    }
  }

// 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 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
    }
  }

// 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 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 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 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) + ".apply(null, arguments)")
        : isFunctionExpression
          ? ("return (" + (handler.value) + ").apply(null, arguments)")
          : 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 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
  };

/*  */

function generate (
    ast,
    options
  ) {
    var state = new CodegenState(options);
    // fix #11483, Root level <script> tags should not be rendered.
    var code = ast ? (ast.tag === 'script' ? 'null' : 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 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
  }

// 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)) + ")")
  }

// 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) : '') + ")")
  }

// #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 checkEvent (exp, text, warn, range) {
    var stripped = exp.replace(stripStringRE, '');
    var keywordMatch = stripped.match(unaryOperatorsRE);
    if (keywordMatch && stripped.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 checkFunctionParameterExpression (exp, text, warn, range) {
    try {
      new Function(exp, '');
    } catch (e) {
      warn(
        "invalid function parameter 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;

/*  */

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 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;

}));

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