From dd5b15229cb15459fa7c31ccea77dac28cbfafbd Mon Sep 17 00:00:00 2001 From: admin <weikou2014> Date: 星期一, 13 四月 2020 10:04:20 +0800 Subject: [PATCH] Merge remote-tracking branch 'origin/div' into div --- fanli/src/main/webapp/client/fan_client/js/vue.js | 20114 +++++++++++++++++++++++++++++----------------------------- 1 files changed, 10,057 insertions(+), 10,057 deletions(-) diff --git a/fanli/src/main/webapp/client/fan_client/js/vue.js b/fanli/src/main/webapp/client/fan_client/js/vue.js index 6ecd1b6..1a39eea 100644 --- a/fanli/src/main/webapp/client/fan_client/js/vue.js +++ b/fanli/src/main/webapp/client/fan_client/js/vue.js @@ -1,10057 +1,10057 @@ -/*! - * Vue.js v2.4.0 - * (c) 2014-2017 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.Vue = factory()); -}(this, (function () { 'use strict'; - -/* */ - -// these helpers produces better vm code in JS engines due to their -// explicitness and function inlining -function isUndef (v) { - return v === undefined || v === null -} - -function isDef (v) { - return v !== undefined && v !== null -} - -function isTrue (v) { - return v === true -} - -function isFalse (v) { - return v === false -} - -/** - * Check if value is primitive - */ -function isPrimitive (value) { - return typeof value === 'string' || typeof value === 'number' -} - -/** - * 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' -} - -var _toString = Object.prototype.toString; - -/** - * 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(val); - return n >= 0 && Math.floor(n) === n && isFinite(val) -} - -/** - * Convert a value to a string that is actually rendered. - */ -function toString (val) { - return val == null - ? '' - : typeof val === 'object' - ? JSON.stringify(val, null, 2) - : String(val) -} - -/** - * Convert a input value to a number for persistence. - * If the conversion fails, return original string. - */ -function toNumber (val) { - var n = parseFloat(val); - return isNaN(n) ? val : n -} - -/** - * Make a map and return a function for checking if a key - * is in that map. - */ -function makeMap ( - str, - expectsLowerCase -) { - var map = Object.create(null); - var list = str.split(','); - for (var i = 0; i < list.length; i++) { - map[list[i]] = true; - } - return expectsLowerCase - ? function (val) { return map[val.toLowerCase()]; } - : function (val) { return map[val]; } -} - -/** - * Check if a tag is a built-in tag. - */ -var isBuiltInTag = makeMap('slot,component', true); - -/** - * Check if a attribute is a reserved attribute. - */ -var isReservedAttribute = makeMap('key,ref,slot,is'); - -/** - * Remove an item from an array - */ -function remove (arr, item) { - if (arr.length) { - var index = arr.indexOf(item); - if (index > -1) { - return arr.splice(index, 1) - } - } -} - -/** - * Check whether the object has the property. - */ -var hasOwnProperty = Object.prototype.hasOwnProperty; -function hasOwn (obj, key) { - return hasOwnProperty.call(obj, key) -} - -/** - * Create a cached version of a pure function. - */ -function cached (fn) { - var cache = Object.create(null); - return (function cachedFn (str) { - var hit = cache[str]; - return hit || (cache[str] = fn(str)) - }) -} - -/** - * Camelize a hyphen-delimited string. - */ -var camelizeRE = /-(\w)/g; -var camelize = cached(function (str) { - return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; }) -}); - -/** - * Capitalize a string. - */ -var capitalize = cached(function (str) { - return str.charAt(0).toUpperCase() + str.slice(1) -}); - -/** - * Hyphenate a camelCase string. - */ -var hyphenateRE = /([^-])([A-Z])/g; -var hyphenate = cached(function (str) { - return str - .replace(hyphenateRE, '$1-$2') - .replace(hyphenateRE, '$1-$2') - .toLowerCase() -}); - -/** - * Simple bind, faster than native - */ -function bind (fn, ctx) { - function boundFn (a) { - var l = arguments.length; - return l - ? l > 1 - ? fn.apply(ctx, arguments) - : fn.call(ctx, a) - : fn.call(ctx) - } - // record original fn length - boundFn._length = fn.length; - return boundFn -} - -/** - * Convert an Array-like object to a real Array. - */ -function toArray (list, start) { - start = start || 0; - var i = list.length - start; - var ret = new Array(i); - while (i--) { - ret[i] = list[i + start]; - } - return ret -} - -/** - * Mix properties into target object. - */ -function extend (to, _from) { - for (var key in _from) { - to[key] = _from[key]; - } - return to -} - -/** - * Merge an Array of Objects into a single Object. - */ -function toObject (arr) { - var res = {}; - for (var i = 0; i < arr.length; i++) { - if (arr[i]) { - extend(res, arr[i]); - } - } - return res -} - -/** - * Perform no operation. - * Stubbing args to make Flow happy without leaving useless transpiled code - * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/) - */ -function noop (a, b, c) {} - -/** - * Always return false. - */ -var no = function (a, b, c) { return false; }; - -/** - * Return same value - */ -var identity = function (_) { return _; }; - -/** - * Generate a static keys string from compiler modules. - */ -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) { - var isObjectA = isObject(a); - var isObjectB = isObject(b); - if (isObjectA && isObjectB) { - try { - return JSON.stringify(a) === JSON.stringify(b) - } catch (e) { - // possible circular reference - return a === b - } - } else if (!isObjectA && !isObjectB) { - return String(a) === String(b) - } else { - return false - } -} - -function looseIndexOf (arr, val) { - for (var i = 0; i < arr.length; i++) { - if (looseEqual(arr[i], val)) { return i } - } - return -1 -} - -/** - * Ensure a function is called only once. - */ -function once (fn) { - var called = false; - return function () { - if (!called) { - called = true; - fn.apply(this, arguments); - } - } -} - -var SSR_ATTR = 'data-server-rendered'; - -var ASSET_TYPES = [ - 'component', - 'directive', - 'filter' -]; - -var LIFECYCLE_HOOKS = [ - 'beforeCreate', - 'created', - 'beforeMount', - 'mounted', - 'beforeUpdate', - 'updated', - 'beforeDestroy', - 'destroyed', - 'activated', - 'deactivated' -]; - -/* */ - -var config = ({ - /** - * Option merge strategies (used in core/util/options) - */ - 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 - */ - keyCodes: Object.create(null), - - /** - * Check if a tag is reserved so that it cannot be registered as a - * component. This is platform-dependent and may be overwritten. - */ - isReservedTag: no, - - /** - * Check if an attribute is reserved so that it cannot be used as a component - * prop. This is platform-dependent and may be overwritten. - */ - isReservedAttr: no, - - /** - * Check if a tag is an unknown element. - * Platform-dependent. - */ - isUnknownElement: no, - - /** - * Get the namespace of an element - */ - getTagNamespace: noop, - - /** - * Parse the real tag name for the specific platform. - */ - parsePlatformTagName: identity, - - /** - * Check if an attribute must be bound using property, e.g. value - * Platform-dependent. - */ - mustUseProp: no, - - /** - * Exposed for legacy reasons - */ - _lifecycleHooks: LIFECYCLE_HOOKS -}); - -/* */ - -var emptyObject = Object.freeze({}); - -/** - * Check if a string starts with $ or _ - */ -function isReserved (str) { - var c = (str + '').charCodeAt(0); - return c === 0x24 || c === 0x5F -} - -/** - * Define a property. - */ -function def (obj, key, val, enumerable) { - Object.defineProperty(obj, key, { - value: val, - enumerable: !!enumerable, - writable: true, - configurable: true - }); -} - -/** - * Parse simple path. - */ -var bailRE = /[^\w.$]/; -function parsePath (path) { - if (bailRE.test(path)) { - return - } - var segments = path.split('.'); - return function (obj) { - for (var i = 0; i < segments.length; i++) { - if (!obj) { return } - obj = obj[segments[i]]; - } - return obj - } -} - -/* */ - -var warn = noop; -var tip = noop; -var formatComponentName = (null); // work around flow check - -{ - var hasConsole = typeof console !== 'undefined'; - var classifyRE = /(?:^|[-_])(\w)/g; - var classify = function (str) { return str - .replace(classifyRE, function (c) { return c.toUpperCase(); }) - .replace(/[-_]/g, ''); }; - - warn = function (msg, vm) { - var trace = vm ? generateComponentTrace(vm) : ''; - - if (config.warnHandler) { - config.warnHandler.call(null, msg, vm, trace); - } else if (hasConsole && (!config.silent)) { - console.error(("[Vue warn]: " + msg + trace)); - } - }; - - tip = function (msg, vm) { - if (hasConsole && (!config.silent)) { - console.warn("[Vue tip]: " + msg + ( - vm ? generateComponentTrace(vm) : '' - )); - } - }; - - formatComponentName = function (vm, includeFile) { - if (vm.$root === vm) { - return '<Root>' - } - var name = typeof vm === 'string' - ? vm - : typeof vm === 'function' && vm.options - ? vm.options.name - : vm._isVue - ? vm.$options.name || vm.$options._componentTag - : vm.name; - - var file = vm._isVue && vm.$options.__file; - if (!name && file) { - var match = file.match(/([^/\\]+)\.vue$/); - 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 - }; - - var 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)) + ")") - } - }; -} - -/* */ - -function handleError (err, vm, info) { - if (config.errorHandler) { - config.errorHandler.call(null, err, vm, info); - } else { - { - warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm); - } - /* istanbul ignore else */ - if (inBrowser && typeof console !== 'undefined') { - console.error(err); - } else { - throw err - } - } -} - -/* */ -/* globals MutationObserver */ - -// can we use __proto__? -var hasProto = '__proto__' in {}; - -// Browser environment sniffing -var inBrowser = typeof window !== 'undefined'; -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; -var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA); -var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge; - -// Firefix 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 && typeof global !== 'undefined') { - // detect presence of vue-server-renderer and avoid - // Webpack shimming the process - _isServer = global['process'].env.VUE_ENV === 'server'; - } else { - _isServer = false; - } - } - return _isServer -}; - -// detect devtools -var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__; - -/* istanbul ignore next */ -function isNative (Ctor) { - return typeof Ctor === 'function' && /native code/.test(Ctor.toString()) -} - -var hasSymbol = - typeof Symbol !== 'undefined' && isNative(Symbol) && - typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys); - -/** - * Defer a task to execute it asynchronously. - */ -var nextTick = (function () { - var callbacks = []; - var pending = false; - var timerFunc; - - function nextTickHandler () { - pending = false; - var copies = callbacks.slice(0); - callbacks.length = 0; - for (var i = 0; i < copies.length; i++) { - copies[i](); - } - } - - // 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 if */ - if (typeof Promise !== 'undefined' && isNative(Promise)) { - var p = Promise.resolve(); - var logError = function (err) { console.error(err); }; - timerFunc = function () { - p.then(nextTickHandler).catch(logError); - // in problematic UIWebViews, Promise.then doesn't completely break, but - // it can get stuck in a weird state where callbacks are pushed into the - // microtask queue but the queue isn't being flushed, until the browser - // needs to do some other work, e.g. handle a timer. Therefore we can - // "force" the microtask queue to be flushed by adding an empty timer. - if (isIOS) { setTimeout(noop); } - }; - } else if (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 IE11, iOS7, Android 4.4 - var counter = 1; - var observer = new MutationObserver(nextTickHandler); - var textNode = document.createTextNode(String(counter)); - observer.observe(textNode, { - characterData: true - }); - timerFunc = function () { - counter = (counter + 1) % 2; - textNode.data = String(counter); - }; - } else { - // fallback to setTimeout - /* istanbul ignore next */ - timerFunc = function () { - setTimeout(nextTickHandler, 0); - }; - } - - return function queueNextTick (cb, ctx) { - var _resolve; - callbacks.push(function () { - if (cb) { - try { - cb.call(ctx); - } catch (e) { - handleError(e, ctx, 'nextTick'); - } - } else if (_resolve) { - _resolve(ctx); - } - }); - if (!pending) { - pending = true; - timerFunc(); - } - if (!cb && typeof Promise !== 'undefined') { - return new Promise(function (resolve, reject) { - _resolve = resolve; - }) - } - } -})(); - -var _Set; -/* istanbul ignore if */ -if (typeof Set !== 'undefined' && isNative(Set)) { - // use native Set when available. - _Set = Set; -} else { - // a non-standard Set polyfill that only works with primitive keys. - _Set = (function () { - function Set () { - this.set = Object.create(null); - } - Set.prototype.has = function has (key) { - return this.set[key] === true - }; - Set.prototype.add = function add (key) { - this.set[key] = true; - }; - Set.prototype.clear = function clear () { - this.set = Object.create(null); - }; - - return Set; - }()); -} - -/* */ - - -var uid = 0; - -/** - * A dep is an observable that can have multiple - * directives subscribing to it. - */ -var Dep = function Dep () { - this.id = uid++; - this.subs = []; -}; - -Dep.prototype.addSub = function addSub (sub) { - this.subs.push(sub); -}; - -Dep.prototype.removeSub = function removeSub (sub) { - remove(this.subs, sub); -}; - -Dep.prototype.depend = function depend () { - if (Dep.target) { - Dep.target.addDep(this); - } -}; - -Dep.prototype.notify = function notify () { - // stabilize the subscriber list first - var subs = this.subs.slice(); - for (var i = 0, l = subs.length; i < l; i++) { - subs[i].update(); - } -}; - -// the current target watcher being evaluated. -// this is globally unique because there could be only one -// watcher being evaluated at any time. -Dep.target = null; -var targetStack = []; - -function pushTarget (_target) { - if (Dep.target) { targetStack.push(Dep.target); } - Dep.target = _target; -} - -function popTarget () { - Dep.target = targetStack.pop(); -} - -/* - * not type checking this file because flow doesn't play well with - * dynamically accessing methods on Array prototype - */ - -var arrayProto = Array.prototype; -var arrayMethods = Object.create(arrayProto);[ - 'push', - 'pop', - 'shift', - 'unshift', - 'splice', - 'sort', - 'reverse' -] -.forEach(function (method) { - // cache original method - var original = arrayProto[method]; - def(arrayMethods, method, function mutator () { - var args = [], len = arguments.length; - while ( len-- ) args[ len ] = arguments[ len ]; - - var result = original.apply(this, args); - var ob = this.__ob__; - var inserted; - switch (method) { - case 'push': - case 'unshift': - inserted = args; - break - case 'splice': - inserted = args.slice(2); - break - } - if (inserted) { ob.observeArray(inserted); } - // notify change - ob.dep.notify(); - return result - }); -}); - -/* */ - -var arrayKeys = Object.getOwnPropertyNames(arrayMethods); - -/** - * By default, when a reactive property is set, the new value is - * also converted to become reactive. However when passing down props, - * we don't want to force conversion because the value may be a nested value - * under a frozen data structure. Converting it would defeat the optimization. - */ -var observerState = { - shouldConvert: true -}; - -/** - * Observer class that are attached to each observed - * object. Once attached, the observer converts target - * object's property keys into getter/setters that - * collect dependencies and dispatches updates. - */ -var Observer = function Observer (value) { - this.value = value; - this.dep = new Dep(); - this.vmCount = 0; - def(value, '__ob__', this); - if (Array.isArray(value)) { - var augment = hasProto - ? protoAugment - : copyAugment; - augment(value, arrayMethods, arrayKeys); - this.observeArray(value); - } else { - this.walk(value); - } -}; - -/** - * Walk through each property and convert them into - * getter/setters. This method should only be called when - * value type is Object. - */ -Observer.prototype.walk = function walk (obj) { - var keys = Object.keys(obj); - for (var i = 0; i < keys.length; i++) { - defineReactive$$1(obj, keys[i], obj[keys[i]]); - } -}; - -/** - * Observe a list of Array items. - */ -Observer.prototype.observeArray = function observeArray (items) { - for (var i = 0, l = items.length; i < l; i++) { - observe(items[i]); - } -}; - -// helpers - -/** - * Augment an target Object or Array by intercepting - * the prototype chain using __proto__ - */ -function protoAugment (target, src, keys) { - /* eslint-disable no-proto */ - target.__proto__ = src; - /* eslint-enable no-proto */ -} - -/** - * Augment an target Object or Array by defining - * hidden properties. - */ -/* istanbul ignore next */ -function copyAugment (target, src, keys) { - for (var i = 0, l = keys.length; i < l; i++) { - var key = keys[i]; - def(target, key, src[key]); - } -} - -/** - * Attempt to create an observer instance for a value, - * returns the new observer if successfully observed, - * or the existing observer if the value already has one. - */ -function observe (value, asRootData) { - if (!isObject(value)) { - return - } - var ob; - if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) { - ob = value.__ob__; - } else if ( - observerState.shouldConvert && - !isServerRendering() && - (Array.isArray(value) || isPlainObject(value)) && - Object.isExtensible(value) && - !value._isVue - ) { - ob = new Observer(value); - } - if (asRootData && ob) { - ob.vmCount++; - } - return ob -} - -/** - * Define a reactive property on an Object. - */ -function defineReactive$$1 ( - obj, - key, - val, - customSetter, - shallow -) { - var dep = new Dep(); - - var property = Object.getOwnPropertyDescriptor(obj, key); - if (property && property.configurable === false) { - return - } - - // cater for pre-defined getter/setters - var getter = property && property.get; - var setter = property && property.set; - - var childOb = !shallow && observe(val); - Object.defineProperty(obj, key, { - enumerable: true, - configurable: true, - get: function reactiveGetter () { - var value = getter ? getter.call(obj) : val; - if (Dep.target) { - dep.depend(); - if (childOb) { - childOb.dep.depend(); - } - if (Array.isArray(value)) { - dependArray(value); - } - } - return value - }, - set: function reactiveSetter (newVal) { - var value = getter ? getter.call(obj) : val; - /* eslint-disable no-self-compare */ - if (newVal === value || (newVal !== newVal && value !== value)) { - return - } - /* eslint-enable no-self-compare */ - if ("development" !== 'production' && customSetter) { - customSetter(); - } - if (setter) { - setter.call(obj, newVal); - } else { - val = newVal; - } - childOb = !shallow && observe(newVal); - dep.notify(); - } - }); -} - -/** - * Set a property on an object. Adds the new property and - * triggers change notification if the property doesn't - * already exist. - */ -function set (target, key, val) { - if (Array.isArray(target) && isValidArrayIndex(key)) { - target.length = Math.max(target.length, key); - target.splice(key, 1, val); - return val - } - if (hasOwn(target, key)) { - target[key] = val; - return val - } - var ob = (target).__ob__; - if (target._isVue || (ob && ob.vmCount)) { - "development" !== 'production' && warn( - 'Avoid adding reactive properties to a Vue instance or its root $data ' + - 'at runtime - declare it upfront in the data option.' - ); - return val - } - if (!ob) { - target[key] = val; - return val - } - defineReactive$$1(ob.value, key, val); - ob.dep.notify(); - return val -} - -/** - * Delete a property and trigger change if necessary. - */ -function del (target, key) { - if (Array.isArray(target) && isValidArrayIndex(key)) { - target.splice(key, 1); - return - } - var ob = (target).__ob__; - if (target._isVue || (ob && ob.vmCount)) { - "development" !== 'production' && warn( - 'Avoid deleting properties on a Vue instance or its root $data ' + - '- just set it to null.' - ); - return - } - if (!hasOwn(target, key)) { - return - } - delete target[key]; - if (!ob) { - return - } - ob.dep.notify(); -} - -/** - * Collect dependencies on array elements when the array is touched, since - * we cannot intercept array element access like property getters. - */ -function dependArray (value) { - for (var e = (void 0), i = 0, l = value.length; i < l; i++) { - e = value[i]; - e && e.__ob__ && e.__ob__.dep.depend(); - if (Array.isArray(e)) { - dependArray(e); - } - } -} - -/* */ - -/** - * Option overwriting strategies are functions that handle - * how to merge a parent option value and a child option - * value into the final value. - */ -var strats = config.optionMergeStrategies; - -/** - * Options with restrictions - */ -{ - strats.el = strats.propsData = function (parent, child, vm, key) { - if (!vm) { - warn( - "option \"" + key + "\" can only be used during instance " + - 'creation with the `new` keyword.' - ); - } - return defaultStrat(parent, child) - }; -} - -/** - * Helper that recursively merges two data objects together. - */ -function mergeData (to, from) { - if (!from) { return to } - var key, toVal, fromVal; - var keys = Object.keys(from); - for (var i = 0; i < keys.length; i++) { - key = keys[i]; - toVal = to[key]; - fromVal = from[key]; - if (!hasOwn(to, key)) { - set(to, key, fromVal); - } else if (isPlainObject(toVal) && isPlainObject(fromVal)) { - mergeData(toVal, fromVal); - } - } - return to -} - -/** - * Data - */ -function mergeDataOrFn ( - parentVal, - childVal, - vm -) { - if (!vm) { - // in a Vue.extend merge, both should be functions - if (!childVal) { - return parentVal - } - if (!parentVal) { - return childVal - } - // when parentVal & childVal are both present, - // we need to return a function that returns the - // merged result of both functions... no need to - // check if parentVal is a function here because - // it has to be a function to pass previous merges. - return function mergedDataFn () { - return mergeData( - typeof childVal === 'function' ? childVal.call(this) : childVal, - parentVal.call(this) - ) - } - } else if (parentVal || childVal) { - return function mergedInstanceDataFn () { - // instance merge - var instanceData = typeof childVal === 'function' - ? childVal.call(vm) - : childVal; - var defaultData = typeof parentVal === 'function' - ? parentVal.call(vm) - : undefined; - if (instanceData) { - return mergeData(instanceData, defaultData) - } else { - return defaultData - } - } - } -} - -strats.data = function ( - parentVal, - childVal, - vm -) { - if (!vm) { - if (childVal && typeof childVal !== 'function') { - "development" !== 'production' && warn( - 'The "data" option should be a function ' + - 'that returns a per-instance value in component ' + - 'definitions.', - vm - ); - - return parentVal - } - return mergeDataOrFn.call(this, parentVal, childVal) - } - - return mergeDataOrFn(parentVal, childVal, vm) -}; - -/** - * Hooks and props are merged as arrays. - */ -function mergeHook ( - parentVal, - childVal -) { - return childVal - ? parentVal - ? parentVal.concat(childVal) - : Array.isArray(childVal) - ? childVal - : [childVal] - : parentVal -} - -LIFECYCLE_HOOKS.forEach(function (hook) { - strats[hook] = mergeHook; -}); - -/** - * Assets - * - * When a vm is present (instance creation), we need to do - * a three-way merge between constructor options, instance - * options and parent options. - */ -function mergeAssets (parentVal, childVal) { - var res = Object.create(parentVal || null); - return childVal - ? extend(res, childVal) - : res -} - -ASSET_TYPES.forEach(function (type) { - strats[type + 's'] = mergeAssets; -}); - -/** - * Watchers. - * - * Watchers hashes should not overwrite one - * another, so we merge them as arrays. - */ -strats.watch = function (parentVal, childVal) { - // work around Firefox's Object.prototype.watch... - if (parentVal === nativeWatch) { parentVal = undefined; } - if (childVal === nativeWatch) { childVal = undefined; } - /* istanbul ignore if */ - if (!childVal) { return Object.create(parentVal || null) } - if (!parentVal) { return childVal } - var ret = {}; - extend(ret, parentVal); - for (var key in childVal) { - var parent = ret[key]; - var child = childVal[key]; - if (parent && !Array.isArray(parent)) { - parent = [parent]; - } - ret[key] = parent - ? parent.concat(child) - : Array.isArray(child) ? child : [child]; - } - return ret -}; - -/** - * Other object hashes. - */ -strats.props = -strats.methods = -strats.inject = -strats.computed = function (parentVal, childVal) { - if (!childVal) { return Object.create(parentVal || null) } - if (!parentVal) { return childVal } - var ret = Object.create(null); - extend(ret, parentVal); - extend(ret, childVal); - return ret -}; -strats.provide = mergeDataOrFn; - -/** - * Default strategy. - */ -var defaultStrat = function (parentVal, childVal) { - return childVal === undefined - ? parentVal - : childVal -}; - -/** - * Validate component names - */ -function checkComponents (options) { - for (var key in options.components) { - var lower = key.toLowerCase(); - if (isBuiltInTag(lower) || config.isReservedTag(lower)) { - warn( - 'Do not use built-in or reserved HTML elements as component ' + - 'id: ' + key - ); - } - } -} - -/** - * Ensure all props option syntax are normalized into the - * Object-based format. - */ -function normalizeProps (options) { - var props = options.props; - if (!props) { return } - var res = {}; - var i, val, name; - if (Array.isArray(props)) { - i = props.length; - while (i--) { - val = props[i]; - if (typeof val === 'string') { - name = camelize(val); - res[name] = { type: null }; - } else { - warn('props must be strings when using array syntax.'); - } - } - } else if (isPlainObject(props)) { - for (var key in props) { - val = props[key]; - name = camelize(key); - res[name] = isPlainObject(val) - ? val - : { type: val }; - } - } - options.props = res; -} - -/** - * Normalize all injections into Object-based format - */ -function normalizeInject (options) { - var inject = options.inject; - if (Array.isArray(inject)) { - var normalized = options.inject = {}; - for (var i = 0; i < inject.length; i++) { - normalized[inject[i]] = inject[i]; - } - } -} - -/** - * Normalize raw function directives into object format. - */ -function normalizeDirectives (options) { - var dirs = options.directives; - if (dirs) { - for (var key in dirs) { - var def = dirs[key]; - if (typeof def === 'function') { - dirs[key] = { bind: def, update: def }; - } - } - } -} - -/** - * Merge two option objects into a new one. - * Core utility used in both instantiation and inheritance. - */ -function mergeOptions ( - parent, - child, - vm -) { - { - checkComponents(child); - } - - if (typeof child === 'function') { - child = child.options; - } - - normalizeProps(child); - normalizeInject(child); - normalizeDirectives(child); - var extendsFrom = child.extends; - if (extendsFrom) { - parent = mergeOptions(parent, extendsFrom, vm); - } - if (child.mixins) { - for (var i = 0, l = child.mixins.length; i < l; i++) { - parent = mergeOptions(parent, child.mixins[i], vm); - } - } - var options = {}; - var key; - for (key in parent) { - mergeField(key); - } - for (key in child) { - if (!hasOwn(parent, key)) { - mergeField(key); - } - } - function mergeField (key) { - var strat = strats[key] || defaultStrat; - options[key] = strat(parent[key], child[key], vm, key); - } - return options -} - -/** - * Resolve an asset. - * This function is used because child instances need access - * to assets defined in its ancestor chain. - */ -function resolveAsset ( - options, - type, - id, - warnMissing -) { - /* istanbul ignore if */ - if (typeof id !== 'string') { - return - } - var assets = options[type]; - // check local registration variations first - if (hasOwn(assets, id)) { return assets[id] } - var camelizedId = camelize(id); - if (hasOwn(assets, camelizedId)) { return assets[camelizedId] } - var PascalCaseId = capitalize(camelizedId); - if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] } - // fallback to prototype chain - var res = assets[id] || assets[camelizedId] || assets[PascalCaseId]; - if ("development" !== 'production' && warnMissing && !res) { - warn( - 'Failed to resolve ' + type.slice(0, -1) + ': ' + id, - options - ); - } - return res -} - -/* */ - -function validateProp ( - key, - propOptions, - propsData, - vm -) { - var prop = propOptions[key]; - var absent = !hasOwn(propsData, key); - var value = propsData[key]; - // handle boolean props - if (isType(Boolean, prop.type)) { - if (absent && !hasOwn(prop, 'default')) { - value = false; - } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) { - value = true; - } - } - // check default value - if (value === undefined) { - value = getPropDefaultValue(vm, prop, key); - // since the default value is a fresh copy, - // make sure to observe it. - var prevShouldConvert = observerState.shouldConvert; - observerState.shouldConvert = true; - observe(value); - observerState.shouldConvert = prevShouldConvert; - } - { - assertProp(prop, key, value, vm, absent); - } - return value -} - -/** - * Get the default value of a prop. - */ -function getPropDefaultValue (vm, prop, key) { - // no default, return undefined - if (!hasOwn(prop, 'default')) { - return undefined - } - var def = prop.default; - // warn against non-factory defaults for Object & Array - if ("development" !== 'production' && isObject(def)) { - warn( - 'Invalid default value for prop "' + key + '": ' + - 'Props with type Object/Array must use a factory function ' + - 'to return the default value.', - vm - ); - } - // the raw prop value was also undefined from previous render, - // return previous default value to avoid unnecessary watcher trigger - if (vm && vm.$options.propsData && - vm.$options.propsData[key] === undefined && - vm._props[key] !== undefined - ) { - return vm._props[key] - } - // call factory function for non-Function types - // a value is Function if its prototype is function even across different execution context - return typeof def === 'function' && getType(prop.type) !== 'Function' - ? def.call(vm) - : def -} - -/** - * Assert whether a prop is valid. - */ -function assertProp ( - prop, - name, - value, - vm, - absent -) { - if (prop.required && absent) { - warn( - 'Missing required prop: "' + name + '"', - vm - ); - return - } - if (value == null && !prop.required) { - return - } - var type = prop.type; - var valid = !type || type === true; - var expectedTypes = []; - if (type) { - if (!Array.isArray(type)) { - type = [type]; - } - for (var i = 0; i < type.length && !valid; i++) { - var assertedType = assertType(value, type[i]); - expectedTypes.push(assertedType.expectedType || ''); - valid = assertedType.valid; - } - } - if (!valid) { - warn( - 'Invalid prop: type check failed for prop "' + name + '".' + - ' Expected ' + expectedTypes.map(capitalize).join(', ') + - ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.', - vm - ); - return - } - var validator = prop.validator; - if (validator) { - if (!validator(value)) { - warn( - 'Invalid prop: custom validator check failed for prop "' + name + '".', - vm - ); - } - } -} - -var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/; - -function assertType (value, type) { - var valid; - var expectedType = getType(type); - if (simpleCheckRE.test(expectedType)) { - valid = typeof value === expectedType.toLowerCase(); - } else if (expectedType === 'Object') { - valid = isPlainObject(value); - } else if (expectedType === 'Array') { - valid = Array.isArray(value); - } else { - valid = value instanceof type; - } - return { - valid: valid, - expectedType: expectedType - } -} - -/** - * Use function string name to check built-in types, - * because a simple equality check will fail when running - * across different vms / iframes. - */ -function getType (fn) { - var match = fn && fn.toString().match(/^\s*function (\w+)/); - return match ? match[1] : '' -} - -function isType (type, fn) { - if (!Array.isArray(fn)) { - return getType(fn) === getType(type) - } - for (var i = 0, len = fn.length; i < len; i++) { - if (getType(fn[i]) === getType(type)) { - return true - } - } - /* istanbul ignore next */ - return false -} - -/* */ - -var mark; -var measure; - -{ - var perf = inBrowser && window.performance; - /* istanbul ignore if */ - if ( - perf && - perf.mark && - perf.measure && - perf.clearMarks && - perf.clearMeasures - ) { - mark = function (tag) { return perf.mark(tag); }; - measure = function (name, startTag, endTag) { - perf.measure(name, startTag, endTag); - perf.clearMarks(startTag); - perf.clearMarks(endTag); - perf.clearMeasures(name); - }; - } -} - -/* not type checking this file because flow doesn't play well with Proxy */ - -var initProxy; - -{ - var allowedGlobals = makeMap( - 'Infinity,undefined,NaN,isFinite,isNaN,' + - 'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' + - 'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' + - 'require' // for Webpack/Browserify - ); - - var warnNonPresent = function (target, key) { - warn( - "Property or method \"" + key + "\" is not defined on the instance but " + - "referenced during render. Make sure to declare reactive data " + - "properties in the data option.", - target - ); - }; - - var hasProxy = - typeof Proxy !== 'undefined' && - Proxy.toString().match(/native code/); - - if (hasProxy) { - var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta'); - config.keyCodes = new Proxy(config.keyCodes, { - set: function set (target, key, value) { - if (isBuiltInModifier(key)) { - warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key)); - return false - } else { - target[key] = value; - return true - } - } - }); - } - - var hasHandler = { - has: function has (target, key) { - var has = key in target; - var isAllowed = allowedGlobals(key) || key.charAt(0) === '_'; - if (!has && !isAllowed) { - warnNonPresent(target, key); - } - return has || !isAllowed - } - }; - - var getHandler = { - get: function get (target, key) { - if (typeof key === 'string' && !(key in target)) { - warnNonPresent(target, key); - } - return target[key] - } - }; - - initProxy = function initProxy (vm) { - if (hasProxy) { - // determine which proxy handler to use - var options = vm.$options; - var handlers = options.render && options.render._withStripped - ? getHandler - : hasHandler; - vm._renderProxy = new Proxy(vm, handlers); - } else { - vm._renderProxy = vm; - } - }; -} - -/* */ - -var VNode = function VNode ( - tag, - data, - children, - text, - elm, - context, - componentOptions, - asyncFactory -) { - this.tag = tag; - this.data = data; - this.children = children; - this.text = text; - this.elm = elm; - this.ns = undefined; - this.context = context; - this.functionalContext = undefined; - this.key = data && data.key; - this.componentOptions = componentOptions; - this.componentInstance = undefined; - this.parent = undefined; - this.raw = false; - this.isStatic = false; - this.isRootInsert = true; - this.isComment = false; - this.isCloned = false; - this.isOnce = false; - this.asyncFactory = asyncFactory; - this.asyncMeta = undefined; - this.isAsyncPlaceholder = false; -}; - -var prototypeAccessors = { child: {} }; - -// DEPRECATED: alias for componentInstance for backwards compat. -/* istanbul ignore next */ -prototypeAccessors.child.get = function () { - return this.componentInstance -}; - -Object.defineProperties( VNode.prototype, prototypeAccessors ); - -var createEmptyVNode = function (text) { - if ( text === void 0 ) text = ''; - - var node = new VNode(); - node.text = text; - node.isComment = true; - return node -}; - -function createTextVNode (val) { - return new VNode(undefined, undefined, undefined, String(val)) -} - -// optimized shallow clone -// used for static nodes and slot nodes because they may be reused across -// multiple renders, cloning them avoids errors when DOM manipulations rely -// on their elm reference. -function cloneVNode (vnode) { - var cloned = new VNode( - vnode.tag, - vnode.data, - vnode.children, - vnode.text, - vnode.elm, - vnode.context, - vnode.componentOptions, - vnode.asyncFactory - ); - cloned.ns = vnode.ns; - cloned.isStatic = vnode.isStatic; - cloned.key = vnode.key; - cloned.isComment = vnode.isComment; - cloned.isCloned = true; - return cloned -} - -function cloneVNodes (vnodes) { - var len = vnodes.length; - var res = new Array(len); - for (var i = 0; i < len; i++) { - res[i] = cloneVNode(vnodes[i]); - } - return res -} - -/* */ - -var normalizeEvent = cached(function (name) { - var passive = name.charAt(0) === '&'; - name = passive ? name.slice(1) : name; - var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first - name = once$$1 ? name.slice(1) : name; - var capture = name.charAt(0) === '!'; - name = capture ? name.slice(1) : name; - return { - name: name, - once: once$$1, - capture: capture, - passive: passive - } -}); - -function createFnInvoker (fns) { - function invoker () { - var arguments$1 = arguments; - - var fns = invoker.fns; - if (Array.isArray(fns)) { - var cloned = fns.slice(); - for (var i = 0; i < cloned.length; i++) { - cloned[i].apply(null, arguments$1); - } - } else { - // return handler return value for single handlers - return fns.apply(null, arguments) - } - } - invoker.fns = fns; - return invoker -} - -function updateListeners ( - on, - oldOn, - add, - remove$$1, - vm -) { - var name, cur, old, event; - for (name in on) { - cur = on[name]; - old = oldOn[name]; - event = normalizeEvent(name); - if (isUndef(cur)) { - "development" !== 'production' && warn( - "Invalid handler for event \"" + (event.name) + "\": got " + String(cur), - vm - ); - } else if (isUndef(old)) { - if (isUndef(cur.fns)) { - cur = on[name] = createFnInvoker(cur); - } - add(event.name, cur, event.once, event.capture, event.passive); - } else if (cur !== old) { - old.fns = cur; - on[name] = old; - } - } - for (name in oldOn) { - if (isUndef(on[name])) { - event = normalizeEvent(name); - remove$$1(event.name, oldOn[name], event.capture); - } - } -} - -/* */ - -function mergeVNodeHook (def, hookKey, hook) { - var invoker; - var oldHook = def[hookKey]; - - function wrappedHook () { - hook.apply(this, arguments); - // important: remove merged hook to ensure it's called only once - // and prevent memory leak - remove(invoker.fns, wrappedHook); - } - - if (isUndef(oldHook)) { - // no existing hook - invoker = createFnInvoker([wrappedHook]); - } else { - /* istanbul ignore if */ - if (isDef(oldHook.fns) && isTrue(oldHook.merged)) { - // already a merged invoker - invoker = oldHook; - invoker.fns.push(wrappedHook); - } else { - // existing plain hook - invoker = createFnInvoker([oldHook, wrappedHook]); - } - } - - invoker.merged = true; - def[hookKey] = invoker; -} - -/* */ - -function extractPropsFromVNodeData ( - data, - Ctor, - tag -) { - // we are only extracting raw values here. - // validation and default values are handled in the child - // component itself. - var propOptions = Ctor.options.props; - if (isUndef(propOptions)) { - return - } - var res = {}; - var attrs = data.attrs; - var props = data.props; - if (isDef(attrs) || isDef(props)) { - for (var key in propOptions) { - var altKey = hyphenate(key); - { - var keyInLowerCase = key.toLowerCase(); - if ( - key !== keyInLowerCase && - attrs && hasOwn(attrs, keyInLowerCase) - ) { - tip( - "Prop \"" + keyInLowerCase + "\" is passed to component " + - (formatComponentName(tag || Ctor)) + ", but the declared prop name is" + - " \"" + key + "\". " + - "Note that HTML attributes are case-insensitive and camelCased " + - "props need to use their kebab-case equivalents when using in-DOM " + - "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"." - ); - } - } - checkProp(res, props, key, altKey, true) || - checkProp(res, attrs, key, altKey, false); - } - } - return res -} - -function checkProp ( - res, - hash, - key, - altKey, - preserve -) { - if (isDef(hash)) { - if (hasOwn(hash, key)) { - res[key] = hash[key]; - if (!preserve) { - delete hash[key]; - } - return true - } else if (hasOwn(hash, altKey)) { - res[key] = hash[altKey]; - if (!preserve) { - delete hash[altKey]; - } - return true - } - } - return false -} - -/* */ - -// The template compiler attempts to minimize the need for normalization by -// statically analyzing the template at compile time. -// -// For plain HTML markup, normalization can be completely skipped because the -// generated render function is guaranteed to return Array<VNode>. There are -// two cases where extra normalization is needed: - -// 1. When the children contains components - because a functional component -// may return an Array instead of a single root. In this case, just a simple -// normalization is needed - if any child is an Array, we flatten the whole -// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep -// because functional components already normalize their own children. -function simpleNormalizeChildren (children) { - for (var i = 0; i < children.length; i++) { - if (Array.isArray(children[i])) { - return Array.prototype.concat.apply([], children) - } - } - return children -} - -// 2. When the children contains constructs that always generated nested Arrays, -// e.g. <template>, <slot>, v-for, or when the children is provided by user -// with hand-written render functions / JSX. In such cases a full normalization -// is needed to cater to all possible types of children values. -function normalizeChildren (children) { - return isPrimitive(children) - ? [createTextVNode(children)] - : Array.isArray(children) - ? normalizeArrayChildren(children) - : undefined -} - -function isTextNode (node) { - return isDef(node) && isDef(node.text) && isFalse(node.isComment) -} - -function normalizeArrayChildren (children, nestedIndex) { - var res = []; - var i, c, last; - for (i = 0; i < children.length; i++) { - c = children[i]; - if (isUndef(c) || typeof c === 'boolean') { continue } - last = res[res.length - 1]; - // nested - if (Array.isArray(c)) { - res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i))); - } else if (isPrimitive(c)) { - if (isTextNode(last)) { - // merge adjacent text nodes - // this is necessary for SSR hydration because text nodes are - // essentially merged when rendered to HTML strings - (last).text += String(c); - } else if (c !== '') { - // convert primitive to vnode - res.push(createTextVNode(c)); - } - } else { - if (isTextNode(c) && isTextNode(last)) { - // merge adjacent text nodes - res[res.length - 1] = createTextVNode(last.text + c.text); - } else { - // default key for nested array children (likely generated by v-for) - if (isTrue(children._isVList) && - isDef(c.tag) && - isUndef(c.key) && - isDef(nestedIndex)) { - c.key = "__vlist" + nestedIndex + "_" + i + "__"; - } - res.push(c); - } - } - } - return res -} - -/* */ - -function ensureCtor (comp, base) { - if (comp.__esModule && comp.default) { - comp = comp.default; - } - return isObject(comp) - ? base.extend(comp) - : comp -} - -function createAsyncPlaceholder ( - factory, - data, - context, - children, - tag -) { - var node = createEmptyVNode(); - node.asyncFactory = factory; - node.asyncMeta = { data: data, context: context, children: children, tag: tag }; - return node -} - -function resolveAsyncComponent ( - factory, - baseCtor, - context -) { - if (isTrue(factory.error) && isDef(factory.errorComp)) { - return factory.errorComp - } - - if (isDef(factory.resolved)) { - return factory.resolved - } - - if (isTrue(factory.loading) && isDef(factory.loadingComp)) { - return factory.loadingComp - } - - if (isDef(factory.contexts)) { - // already pending - factory.contexts.push(context); - } else { - var contexts = factory.contexts = [context]; - var sync = true; - - var forceRender = function () { - for (var i = 0, l = contexts.length; i < l; i++) { - contexts[i].$forceUpdate(); - } - }; - - var resolve = once(function (res) { - // cache resolved - factory.resolved = ensureCtor(res, baseCtor); - // invoke callbacks only if this is not a synchronous resolve - // (async resolves are shimmed as synchronous during SSR) - if (!sync) { - forceRender(); - } - }); - - var reject = once(function (reason) { - "development" !== 'production' && warn( - "Failed to resolve async component: " + (String(factory)) + - (reason ? ("\nReason: " + reason) : '') - ); - if (isDef(factory.errorComp)) { - factory.error = true; - forceRender(); - } - }); - - var res = factory(resolve, reject); - - if (isObject(res)) { - if (typeof res.then === 'function') { - // () => Promise - if (isUndef(factory.resolved)) { - res.then(resolve, reject); - } - } else if (isDef(res.component) && typeof res.component.then === 'function') { - res.component.then(resolve, reject); - - if (isDef(res.error)) { - factory.errorComp = ensureCtor(res.error, baseCtor); - } - - if (isDef(res.loading)) { - factory.loadingComp = ensureCtor(res.loading, baseCtor); - if (res.delay === 0) { - factory.loading = true; - } else { - setTimeout(function () { - if (isUndef(factory.resolved) && isUndef(factory.error)) { - factory.loading = true; - forceRender(); - } - }, res.delay || 200); - } - } - - if (isDef(res.timeout)) { - setTimeout(function () { - if (isUndef(factory.resolved)) { - reject( - "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)) { - return c - } - } - } -} - -/* */ - -/* */ - -function initEvents (vm) { - vm._events = Object.create(null); - vm._hasHookEvent = false; - // init parent attached events - var listeners = vm.$options._parentListeners; - if (listeners) { - updateComponentListeners(vm, listeners); - } -} - -var target; - -function add (event, fn, once$$1) { - if (once$$1) { - target.$once(event, fn); - } else { - target.$on(event, fn); - } -} - -function remove$1 (event, fn) { - target.$off(event, fn); -} - -function updateComponentListeners ( - vm, - listeners, - oldListeners -) { - target = vm; - updateListeners(listeners, oldListeners || {}, add, remove$1, vm); -} - -function eventsMixin (Vue) { - var hookRE = /^hook:/; - Vue.prototype.$on = function (event, fn) { - var this$1 = this; - - var vm = this; - if (Array.isArray(event)) { - for (var i = 0, l = event.length; i < l; i++) { - this$1.$on(event[i], fn); - } - } else { - (vm._events[event] || (vm._events[event] = [])).push(fn); - // optimize hook:event cost by using a boolean flag marked at registration - // instead of a hash lookup - if (hookRE.test(event)) { - vm._hasHookEvent = true; - } - } - return vm - }; - - Vue.prototype.$once = function (event, fn) { - var vm = this; - function on () { - vm.$off(event, on); - fn.apply(vm, arguments); - } - on.fn = fn; - vm.$on(event, on); - return vm - }; - - Vue.prototype.$off = function (event, fn) { - var this$1 = this; - - var vm = this; - // all - if (!arguments.length) { - vm._events = Object.create(null); - return vm - } - // array of events - if (Array.isArray(event)) { - for (var i$1 = 0, l = event.length; i$1 < l; i$1++) { - this$1.$off(event[i$1], fn); - } - return vm - } - // specific event - var cbs = vm._events[event]; - if (!cbs) { - return vm - } - if (arguments.length === 1) { - vm._events[event] = null; - return vm - } - // specific handler - var cb; - var i = cbs.length; - while (i--) { - cb = cbs[i]; - if (cb === fn || cb.fn === fn) { - cbs.splice(i, 1); - break - } - } - return vm - }; - - Vue.prototype.$emit = function (event) { - var vm = this; - { - var lowerCaseEvent = event.toLowerCase(); - if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) { - tip( - "Event \"" + lowerCaseEvent + "\" is emitted in component " + - (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " + - "Note that HTML attributes are case-insensitive and you cannot use " + - "v-on to listen to camelCase events when using in-DOM templates. " + - "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"." - ); - } - } - var cbs = vm._events[event]; - if (cbs) { - cbs = cbs.length > 1 ? toArray(cbs) : cbs; - var args = toArray(arguments, 1); - for (var i = 0, l = cbs.length; i < l; i++) { - try { - cbs[i].apply(vm, args); - } catch (e) { - handleError(e, vm, ("event handler for \"" + event + "\"")); - } - } - } - return vm - }; -} - -/* */ - -/** - * Runtime helper for resolving raw children VNodes into a slot object. - */ -function resolveSlots ( - children, - context -) { - var slots = {}; - if (!children) { - return slots - } - var defaultSlot = []; - for (var i = 0, l = children.length; i < l; i++) { - var child = children[i]; - // named slots should only be respected if the vnode was rendered in the - // same context. - if ((child.context === context || child.functionalContext === context) && - child.data && child.data.slot != null - ) { - var name = child.data.slot; - var slot = (slots[name] || (slots[name] = [])); - if (child.tag === 'template') { - slot.push.apply(slot, child.children); - } else { - slot.push(child); - } - } else { - defaultSlot.push(child); - } - } - // ignore whitespace - if (!defaultSlot.every(isWhitespace)) { - slots.default = defaultSlot; - } - return slots -} - -function isWhitespace (node) { - return node.isComment || node.text === ' ' -} - -function resolveScopedSlots ( - fns, // see flow/vnode - res -) { - res = res || {}; - for (var i = 0; i < fns.length; i++) { - if (Array.isArray(fns[i])) { - resolveScopedSlots(fns[i], res); - } else { - res[fns[i].key] = fns[i].fn; - } - } - return res -} - -/* */ - -var activeInstance = null; -var isUpdatingChildComponent = false; - -function initLifecycle (vm) { - var options = vm.$options; - - // locate first non-abstract parent - var parent = options.parent; - if (parent && !options.abstract) { - while (parent.$options.abstract && parent.$parent) { - parent = parent.$parent; - } - parent.$children.push(vm); - } - - vm.$parent = parent; - vm.$root = parent ? parent.$root : vm; - - vm.$children = []; - vm.$refs = {}; - - vm._watcher = null; - vm._inactive = null; - vm._directInactive = false; - vm._isMounted = false; - vm._isDestroyed = false; - vm._isBeingDestroyed = false; -} - -function lifecycleMixin (Vue) { - Vue.prototype._update = function (vnode, hydrating) { - var vm = this; - if (vm._isMounted) { - callHook(vm, 'beforeUpdate'); - } - var prevEl = vm.$el; - var prevVnode = vm._vnode; - var prevActiveInstance = activeInstance; - activeInstance = vm; - vm._vnode = vnode; - // Vue.prototype.__patch__ is injected in entry points - // based on the rendering backend used. - if (!prevVnode) { - // initial render - vm.$el = vm.__patch__( - vm.$el, vnode, hydrating, false /* removeOnly */, - vm.$options._parentElm, - vm.$options._refElm - ); - // no need for the ref nodes after initial patch - // this prevents keeping a detached DOM tree in memory (#5851) - vm.$options._parentElm = vm.$options._refElm = null; - } else { - // updates - vm.$el = vm.__patch__(prevVnode, vnode); - } - activeInstance = prevActiveInstance; - // update __vue__ reference - if (prevEl) { - prevEl.__vue__ = null; - } - if (vm.$el) { - vm.$el.__vue__ = vm; - } - // if parent is an HOC, update its $el as well - if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) { - vm.$parent.$el = vm.$el; - } - // updated hook is called by the scheduler to ensure that children are - // updated in a parent's updated hook. - }; - - Vue.prototype.$forceUpdate = function () { - var vm = this; - if (vm._watcher) { - vm._watcher.update(); - } - }; - - Vue.prototype.$destroy = function () { - var vm = this; - if (vm._isBeingDestroyed) { - return - } - callHook(vm, 'beforeDestroy'); - vm._isBeingDestroyed = true; - // remove self from parent - var parent = vm.$parent; - if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) { - remove(parent.$children, vm); - } - // teardown watchers - if (vm._watcher) { - vm._watcher.teardown(); - } - var i = vm._watchers.length; - while (i--) { - vm._watchers[i].teardown(); - } - // remove reference from data ob - // frozen object may not have observer. - if (vm._data.__ob__) { - vm._data.__ob__.vmCount--; - } - // call the last hook... - vm._isDestroyed = true; - // invoke destroy hooks on current rendered tree - vm.__patch__(vm._vnode, null); - // fire destroyed hook - callHook(vm, 'destroyed'); - // turn off all instance listeners. - vm.$off(); - // remove __vue__ reference - if (vm.$el) { - vm.$el.__vue__ = null; - } - }; -} - -function mountComponent ( - vm, - el, - hydrating -) { - vm.$el = el; - if (!vm.$options.render) { - vm.$options.render = createEmptyVNode; - { - /* istanbul ignore if */ - if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') || - vm.$options.el || el) { - warn( - 'You are using the runtime-only build of Vue where the template ' + - 'compiler is not available. Either pre-compile the templates into ' + - 'render functions, or use the compiler-included build.', - vm - ); - } else { - warn( - 'Failed to mount component: template or render function not defined.', - vm - ); - } - } - } - callHook(vm, 'beforeMount'); - - var updateComponent; - /* istanbul ignore if */ - if ("development" !== 'production' && config.performance && mark) { - updateComponent = function () { - var name = vm._name; - var id = vm._uid; - var startTag = "vue-perf-start:" + id; - var endTag = "vue-perf-end:" + id; - - mark(startTag); - var vnode = vm._render(); - mark(endTag); - measure((name + " render"), startTag, endTag); - - mark(startTag); - vm._update(vnode, hydrating); - mark(endTag); - measure((name + " patch"), startTag, endTag); - }; - } else { - updateComponent = function () { - vm._update(vm._render(), hydrating); - }; - } - - vm._watcher = new Watcher(vm, updateComponent, noop); - hydrating = false; - - // manually mounted instance, call mounted on self - // mounted is called for render-created child components in its inserted hook - if (vm.$vnode == null) { - vm._isMounted = true; - callHook(vm, 'mounted'); - } - return vm -} - -function updateChildComponent ( - vm, - propsData, - listeners, - parentVnode, - renderChildren -) { - { - isUpdatingChildComponent = true; - } - - // determine whether component has slot children - // we need to do this before overwriting $options._renderChildren - var hasChildren = !!( - renderChildren || // has new static slots - vm.$options._renderChildren || // has old static slots - parentVnode.data.scopedSlots || // has new scoped slots - vm.$scopedSlots !== emptyObject // has old scoped slots - ); - - vm.$options._parentVnode = parentVnode; - vm.$vnode = parentVnode; // update vm's placeholder node without re-render - - if (vm._vnode) { // update child tree's parent - vm._vnode.parent = parentVnode; - } - vm.$options._renderChildren = renderChildren; - - // update $attrs and $listensers hash - // these are also reactive so they may trigger child update if the child - // used them during render - vm.$attrs = parentVnode.data && parentVnode.data.attrs; - vm.$listeners = listeners; - - // update props - if (propsData && vm.$options.props) { - observerState.shouldConvert = false; - var props = vm._props; - var propKeys = vm.$options._propKeys || []; - for (var i = 0; i < propKeys.length; i++) { - var key = propKeys[i]; - props[key] = validateProp(key, vm.$options.props, propsData, vm); - } - observerState.shouldConvert = true; - // keep a copy of raw propsData - vm.$options.propsData = propsData; - } - - // update listeners - if (listeners) { - var oldListeners = vm.$options._parentListeners; - vm.$options._parentListeners = listeners; - updateComponentListeners(vm, listeners, oldListeners); - } - // resolve slots + force update if has children - if (hasChildren) { - vm.$slots = resolveSlots(renderChildren, parentVnode.context); - vm.$forceUpdate(); - } - - { - isUpdatingChildComponent = false; - } -} - -function isInInactiveTree (vm) { - while (vm && (vm = vm.$parent)) { - if (vm._inactive) { return true } - } - return false -} - -function activateChildComponent (vm, direct) { - if (direct) { - vm._directInactive = false; - if (isInInactiveTree(vm)) { - return - } - } else if (vm._directInactive) { - return - } - if (vm._inactive || vm._inactive === null) { - vm._inactive = false; - for (var i = 0; i < vm.$children.length; i++) { - activateChildComponent(vm.$children[i]); - } - callHook(vm, 'activated'); - } -} - -function deactivateChildComponent (vm, direct) { - if (direct) { - vm._directInactive = true; - if (isInInactiveTree(vm)) { - return - } - } - if (!vm._inactive) { - vm._inactive = true; - for (var i = 0; i < vm.$children.length; i++) { - deactivateChildComponent(vm.$children[i]); - } - callHook(vm, 'deactivated'); - } -} - -function callHook (vm, hook) { - var handlers = vm.$options[hook]; - if (handlers) { - for (var i = 0, j = handlers.length; i < j; i++) { - try { - handlers[i].call(vm); - } catch (e) { - handleError(e, vm, (hook + " hook")); - } - } - } - if (vm._hasHookEvent) { - vm.$emit('hook:' + hook); - } -} - -/* */ - - -var MAX_UPDATE_COUNT = 100; - -var queue = []; -var activatedChildren = []; -var has = {}; -var circular = {}; -var waiting = false; -var flushing = false; -var index = 0; - -/** - * Reset the scheduler's state. - */ -function resetSchedulerState () { - index = queue.length = activatedChildren.length = 0; - has = {}; - { - circular = {}; - } - waiting = flushing = false; -} - -/** - * Flush both queues and run the watchers. - */ -function flushSchedulerQueue () { - flushing = true; - var watcher, id; - - // Sort queue before flush. - // This ensures that: - // 1. Components are updated from parent to child. (because parent is always - // created before the child) - // 2. A component's user watchers are run before its render watcher (because - // user watchers are created before the render watcher) - // 3. If a component is destroyed during a parent component's watcher run, - // its watchers can be skipped. - queue.sort(function (a, b) { return a.id - b.id; }); - - // do not cache length because more watchers might be pushed - // as we run existing watchers - for (index = 0; index < queue.length; index++) { - watcher = queue[index]; - id = watcher.id; - has[id] = null; - watcher.run(); - // in dev build, check and stop circular updates. - if ("development" !== 'production' && has[id] != null) { - circular[id] = (circular[id] || 0) + 1; - if (circular[id] > MAX_UPDATE_COUNT) { - warn( - 'You may have an infinite update loop ' + ( - watcher.user - ? ("in watcher with expression \"" + (watcher.expression) + "\"") - : "in a component render function." - ), - watcher.vm - ); - break - } - } - } - - // keep copies of post queues before resetting state - var activatedQueue = activatedChildren.slice(); - var updatedQueue = queue.slice(); - - resetSchedulerState(); - - // call component updated and activated hooks - callActivatedHooks(activatedQueue); - callUpdatedHooks(updatedQueue); - - // devtool hook - /* istanbul ignore if */ - if (devtools && config.devtools) { - devtools.emit('flush'); - } -} - -function callUpdatedHooks (queue) { - var i = queue.length; - while (i--) { - var watcher = queue[i]; - var vm = watcher.vm; - if (vm._watcher === watcher && vm._isMounted) { - callHook(vm, 'updated'); - } - } -} - -/** - * Queue a kept-alive component that was activated during patch. - * The queue will be processed after the entire tree has been patched. - */ -function queueActivatedComponent (vm) { - // setting _inactive to false here so that a render function can - // rely on checking whether it's in an inactive tree (e.g. router-view) - vm._inactive = false; - activatedChildren.push(vm); -} - -function callActivatedHooks (queue) { - for (var i = 0; i < queue.length; i++) { - queue[i]._inactive = true; - activateChildComponent(queue[i], true /* true */); - } -} - -/** - * Push a watcher into the watcher queue. - * Jobs with duplicate IDs will be skipped unless it's - * pushed when the queue is being flushed. - */ -function queueWatcher (watcher) { - var id = watcher.id; - if (has[id] == null) { - has[id] = true; - if (!flushing) { - queue.push(watcher); - } else { - // if already flushing, splice the watcher based on its id - // if already past its id, it will be run next immediately. - var i = queue.length - 1; - while (i > index && queue[i].id > watcher.id) { - i--; - } - queue.splice(i + 1, 0, watcher); - } - // queue the flush - if (!waiting) { - waiting = true; - nextTick(flushSchedulerQueue); - } - } -} - -/* */ - -var uid$2 = 0; - -/** - * A watcher parses an expression, collects dependencies, - * and fires callback when the expression value changes. - * This is used for both the $watch() api and directives. - */ -var Watcher = function Watcher ( - vm, - expOrFn, - cb, - options -) { - this.vm = vm; - vm._watchers.push(this); - // options - if (options) { - this.deep = !!options.deep; - this.user = !!options.user; - this.lazy = !!options.lazy; - this.sync = !!options.sync; - } else { - this.deep = this.user = this.lazy = this.sync = false; - } - this.cb = cb; - this.id = ++uid$2; // uid for batching - this.active = true; - this.dirty = this.lazy; // for lazy watchers - this.deps = []; - this.newDeps = []; - this.depIds = new _Set(); - this.newDepIds = new _Set(); - this.expression = expOrFn.toString(); - // parse expression for getter - if (typeof expOrFn === 'function') { - this.getter = expOrFn; - } else { - this.getter = parsePath(expOrFn); - if (!this.getter) { - this.getter = function () {}; - "development" !== 'production' && warn( - "Failed watching path: \"" + expOrFn + "\" " + - 'Watcher only accepts simple dot-delimited paths. ' + - 'For full control, use a function instead.', - vm - ); - } - } - this.value = this.lazy - ? undefined - : this.get(); -}; - -/** - * Evaluate the getter, and re-collect dependencies. - */ -Watcher.prototype.get = function get () { - pushTarget(this); - var value; - var vm = this.vm; - try { - value = this.getter.call(vm, vm); - } catch (e) { - if (this.user) { - handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\"")); - } else { - throw e - } - } finally { - // "touch" every property so they are all tracked as - // dependencies for deep watching - if (this.deep) { - traverse(value); - } - popTarget(); - this.cleanupDeps(); - } - return value -}; - -/** - * Add a dependency to this directive. - */ -Watcher.prototype.addDep = function addDep (dep) { - var id = dep.id; - if (!this.newDepIds.has(id)) { - this.newDepIds.add(id); - this.newDeps.push(dep); - if (!this.depIds.has(id)) { - dep.addSub(this); - } - } -}; - -/** - * Clean up for dependency collection. - */ -Watcher.prototype.cleanupDeps = function cleanupDeps () { - var this$1 = this; - - var i = this.deps.length; - while (i--) { - var dep = this$1.deps[i]; - if (!this$1.newDepIds.has(dep.id)) { - dep.removeSub(this$1); - } - } - var tmp = this.depIds; - this.depIds = this.newDepIds; - this.newDepIds = tmp; - this.newDepIds.clear(); - tmp = this.deps; - this.deps = this.newDeps; - this.newDeps = tmp; - this.newDeps.length = 0; -}; - -/** - * Subscriber interface. - * Will be called when a dependency changes. - */ -Watcher.prototype.update = function update () { - /* istanbul ignore else */ - if (this.lazy) { - this.dirty = true; - } else if (this.sync) { - this.run(); - } else { - queueWatcher(this); - } -}; - -/** - * Scheduler job interface. - * Will be called by the scheduler. - */ -Watcher.prototype.run = function run () { - if (this.active) { - var value = this.get(); - if ( - value !== this.value || - // Deep watchers and watchers on Object/Arrays should fire even - // when the value is the same, because the value may - // have mutated. - isObject(value) || - this.deep - ) { - // set new value - var oldValue = this.value; - this.value = value; - if (this.user) { - try { - this.cb.call(this.vm, value, oldValue); - } catch (e) { - handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\"")); - } - } else { - this.cb.call(this.vm, value, oldValue); - } - } - } -}; - -/** - * Evaluate the value of the watcher. - * This only gets called for lazy watchers. - */ -Watcher.prototype.evaluate = function evaluate () { - this.value = this.get(); - this.dirty = false; -}; - -/** - * Depend on all deps collected by this watcher. - */ -Watcher.prototype.depend = function depend () { - var this$1 = this; - - var i = this.deps.length; - while (i--) { - this$1.deps[i].depend(); - } -}; - -/** - * Remove self from all dependencies' subscriber list. - */ -Watcher.prototype.teardown = function teardown () { - var this$1 = this; - - if (this.active) { - // remove self from vm's watcher list - // this is a somewhat expensive operation so we skip it - // if the vm is being destroyed. - if (!this.vm._isBeingDestroyed) { - remove(this.vm._watchers, this); - } - var i = this.deps.length; - while (i--) { - this$1.deps[i].removeSub(this$1); - } - this.active = false; - } -}; - -/** - * Recursively traverse an object to evoke all converted - * getters, so that every nested property inside the object - * is collected as a "deep" dependency. - */ -var seenObjects = new _Set(); -function traverse (val) { - seenObjects.clear(); - _traverse(val, seenObjects); -} - -function _traverse (val, seen) { - var i, keys; - var isA = Array.isArray(val); - if ((!isA && !isObject(val)) || !Object.isExtensible(val)) { - return - } - if (val.__ob__) { - var depId = val.__ob__.dep.id; - if (seen.has(depId)) { - return - } - seen.add(depId); - } - if (isA) { - i = val.length; - while (i--) { _traverse(val[i], seen); } - } else { - keys = Object.keys(val); - i = keys.length; - while (i--) { _traverse(val[keys[i]], seen); } - } -} - -/* */ - -var sharedPropertyDefinition = { - enumerable: true, - configurable: true, - get: noop, - set: noop -}; - -function proxy (target, sourceKey, key) { - sharedPropertyDefinition.get = function proxyGetter () { - return this[sourceKey][key] - }; - sharedPropertyDefinition.set = function proxySetter (val) { - this[sourceKey][key] = val; - }; - Object.defineProperty(target, key, sharedPropertyDefinition); -} - -function initState (vm) { - vm._watchers = []; - var opts = vm.$options; - if (opts.props) { initProps(vm, opts.props); } - if (opts.methods) { initMethods(vm, opts.methods); } - if (opts.data) { - initData(vm); - } else { - observe(vm._data = {}, true /* asRootData */); - } - if (opts.computed) { initComputed(vm, opts.computed); } - if (opts.watch && opts.watch !== nativeWatch) { - initWatch(vm, opts.watch); - } -} - -function checkOptionType (vm, name) { - var option = vm.$options[name]; - if (!isPlainObject(option)) { - warn( - ("component option \"" + name + "\" should be an object."), - vm - ); - } -} - -function initProps (vm, propsOptions) { - var propsData = vm.$options.propsData || {}; - var props = vm._props = {}; - // cache prop keys so that future props updates can iterate using Array - // instead of dynamic object key enumeration. - var keys = vm.$options._propKeys = []; - var isRoot = !vm.$parent; - // root instance props should be converted - observerState.shouldConvert = isRoot; - var loop = function ( key ) { - keys.push(key); - var value = validateProp(key, propsOptions, propsData, vm); - /* istanbul ignore else */ - { - if (isReservedAttribute(key) || config.isReservedAttr(key)) { - warn( - ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."), - vm - ); - } - defineReactive$$1(props, key, value, function () { - if (vm.$parent && !isUpdatingChildComponent) { - warn( - "Avoid mutating a prop directly since the value will be " + - "overwritten whenever the parent component re-renders. " + - "Instead, use a data or computed property based on the prop's " + - "value. Prop being mutated: \"" + key + "\"", - vm - ); - } - }); - } - // static props are already proxied on the component's prototype - // during Vue.extend(). We only need to proxy props defined at - // instantiation here. - if (!(key in vm)) { - proxy(vm, "_props", key); - } - }; - - for (var key in propsOptions) loop( key ); - observerState.shouldConvert = true; -} - -function initData (vm) { - var data = vm.$options.data; - data = vm._data = typeof data === 'function' - ? getData(data, vm) - : data || {}; - if (!isPlainObject(data)) { - data = {}; - "development" !== 'production' && warn( - 'data functions should return an object:\n' + - 'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function', - vm - ); - } - // proxy data on instance - var keys = Object.keys(data); - var props = vm.$options.props; - var methods = vm.$options.methods; - var i = keys.length; - while (i--) { - var key = keys[i]; - { - if (methods && hasOwn(methods, key)) { - warn( - ("method \"" + key + "\" has already been defined as a data property."), - vm - ); - } - } - if (props && hasOwn(props, key)) { - "development" !== 'production' && warn( - "The data property \"" + key + "\" is already declared as a prop. " + - "Use prop default value instead.", - vm - ); - } else if (!isReserved(key)) { - proxy(vm, "_data", key); - } - } - // observe data - observe(data, true /* asRootData */); -} - -function getData (data, vm) { - try { - return data.call(vm) - } catch (e) { - handleError(e, vm, "data()"); - return {} - } -} - -var computedWatcherOptions = { lazy: true }; - -function initComputed (vm, computed) { - "development" !== 'production' && checkOptionType(vm, 'computed'); - var watchers = vm._computedWatchers = Object.create(null); - - for (var key in computed) { - var userDef = computed[key]; - var getter = typeof userDef === 'function' ? userDef : userDef.get; - { - if (getter === undefined) { - warn( - ("No getter function has been defined for computed property \"" + key + "\"."), - vm - ); - getter = noop; - } - } - // create internal watcher for the computed property. - watchers[key] = new Watcher(vm, getter, noop, computedWatcherOptions); - - // component-defined computed properties are already defined on the - // component prototype. We only need to define computed properties defined - // at instantiation here. - if (!(key in vm)) { - defineComputed(vm, key, userDef); - } else { - if (key in vm.$data) { - warn(("The computed property \"" + key + "\" is already defined in data."), vm); - } else if (vm.$options.props && key in vm.$options.props) { - warn(("The computed property \"" + key + "\" is already defined as a prop."), vm); - } - } - } -} - -function defineComputed (target, key, userDef) { - if (typeof userDef === 'function') { - sharedPropertyDefinition.get = createComputedGetter(key); - sharedPropertyDefinition.set = noop; - } else { - sharedPropertyDefinition.get = userDef.get - ? userDef.cache !== false - ? createComputedGetter(key) - : userDef.get - : noop; - sharedPropertyDefinition.set = userDef.set - ? userDef.set - : noop; - } - Object.defineProperty(target, key, sharedPropertyDefinition); -} - -function createComputedGetter (key) { - return function computedGetter () { - var watcher = this._computedWatchers && this._computedWatchers[key]; - if (watcher) { - if (watcher.dirty) { - watcher.evaluate(); - } - if (Dep.target) { - watcher.depend(); - } - return watcher.value - } - } -} - -function initMethods (vm, methods) { - "development" !== 'production' && checkOptionType(vm, 'methods'); - var props = vm.$options.props; - for (var key in methods) { - vm[key] = methods[key] == null ? noop : bind(methods[key], vm); - { - if (methods[key] == null) { - warn( - "method \"" + key + "\" has an undefined value in the component definition. " + - "Did you reference the function correctly?", - vm - ); - } - if (props && hasOwn(props, key)) { - warn( - ("method \"" + key + "\" has already been defined as a prop."), - vm - ); - } - } - } -} - -function initWatch (vm, watch) { - "development" !== 'production' && checkOptionType(vm, 'watch'); - for (var key in watch) { - var handler = watch[key]; - if (Array.isArray(handler)) { - for (var i = 0; i < handler.length; i++) { - createWatcher(vm, key, handler[i]); - } - } else { - createWatcher(vm, key, handler); - } - } -} - -function createWatcher ( - vm, - keyOrFn, - handler, - options -) { - if (isPlainObject(handler)) { - options = handler; - handler = handler.handler; - } - if (typeof handler === 'string') { - handler = vm[handler]; - } - return vm.$watch(keyOrFn, handler, options) -} - -function stateMixin (Vue) { - // flow somehow has problems with directly declared definition object - // when using Object.defineProperty, so we have to procedurally build up - // the object here. - var dataDef = {}; - dataDef.get = function () { return this._data }; - var propsDef = {}; - propsDef.get = function () { return this._props }; - { - dataDef.set = function (newData) { - warn( - 'Avoid replacing instance root $data. ' + - 'Use nested data properties instead.', - this - ); - }; - propsDef.set = function () { - warn("$props is readonly.", this); - }; - } - Object.defineProperty(Vue.prototype, '$data', dataDef); - Object.defineProperty(Vue.prototype, '$props', propsDef); - - Vue.prototype.$set = set; - Vue.prototype.$delete = del; - - Vue.prototype.$watch = function ( - expOrFn, - cb, - options - ) { - var vm = this; - if (isPlainObject(cb)) { - return createWatcher(vm, expOrFn, cb, options) - } - options = options || {}; - options.user = true; - var watcher = new Watcher(vm, expOrFn, cb, options); - if (options.immediate) { - cb.call(vm, watcher.value); - } - return function unwatchFn () { - watcher.teardown(); - } - }; -} - -/* */ - -function initProvide (vm) { - var provide = vm.$options.provide; - if (provide) { - vm._provided = typeof provide === 'function' - ? provide.call(vm) - : provide; - } -} - -function initInjections (vm) { - var result = resolveInject(vm.$options.inject, vm); - if (result) { - observerState.shouldConvert = false; - Object.keys(result).forEach(function (key) { - /* istanbul ignore else */ - { - 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 - ); - }); - } - }); - observerState.shouldConvert = true; - } -} - -function resolveInject (inject, vm) { - if (inject) { - // inject is :any because flow is not smart enough to figure out cached - var result = Object.create(null); - var keys = hasSymbol - ? Reflect.ownKeys(inject) - : Object.keys(inject); - - for (var i = 0; i < keys.length; i++) { - var key = keys[i]; - var provideKey = inject[key]; - var source = vm; - while (source) { - if (source._provided && provideKey in source._provided) { - result[key] = source._provided[provideKey]; - break - } - source = source.$parent; - } - if ("development" !== 'production' && !hasOwn(result, key)) { - warn(("Injection \"" + key + "\" not found"), vm); - } - } - return result - } -} - -/* */ - -function createFunctionalComponent ( - Ctor, - propsData, - data, - context, - children -) { - var props = {}; - var propOptions = Ctor.options.props; - if (isDef(propOptions)) { - for (var key in propOptions) { - props[key] = validateProp(key, propOptions, propsData || {}); - } - } else { - if (isDef(data.attrs)) { mergeProps(props, data.attrs); } - if (isDef(data.props)) { mergeProps(props, data.props); } - } - // ensure the createElement function in functional components - // gets a unique context - this is necessary for correct named slot check - var _context = Object.create(context); - var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); }; - var vnode = Ctor.options.render.call(null, h, { - data: data, - props: props, - children: children, - parent: context, - listeners: data.on || {}, - injections: resolveInject(Ctor.options.inject, context), - slots: function () { return resolveSlots(children, context); } - }); - if (vnode instanceof VNode) { - vnode.functionalContext = context; - vnode.functionalOptions = Ctor.options; - if (data.slot) { - (vnode.data || (vnode.data = {})).slot = data.slot; - } - } - return vnode -} - -function mergeProps (to, from) { - for (var key in from) { - to[camelize(key)] = from[key]; - } -} - -/* */ - -// hooks to be invoked on component VNodes during patch -var componentVNodeHooks = { - init: function init ( - vnode, - hydrating, - parentElm, - refElm - ) { - if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) { - var child = vnode.componentInstance = createComponentInstanceForVnode( - vnode, - activeInstance, - parentElm, - refElm - ); - child.$mount(hydrating ? vnode.elm : undefined, hydrating); - } else if (vnode.data.keepAlive) { - // kept-alive components, treat as a patch - var mountedNode = vnode; // work around flow - componentVNodeHooks.prepatch(mountedNode, mountedNode); - } - }, - - prepatch: function prepatch (oldVnode, vnode) { - var options = vnode.componentOptions; - var child = vnode.componentInstance = oldVnode.componentInstance; - updateChildComponent( - child, - options.propsData, // updated props - options.listeners, // updated listeners - vnode, // new parent vnode - options.children // new children - ); - }, - - insert: function insert (vnode) { - var context = vnode.context; - var componentInstance = vnode.componentInstance; - if (!componentInstance._isMounted) { - componentInstance._isMounted = true; - callHook(componentInstance, 'mounted'); - } - if (vnode.data.keepAlive) { - if (context._isMounted) { - // vue-router#1212 - // During updates, a kept-alive component's child components may - // change, so directly walking the tree here may call activated hooks - // on incorrect children. Instead we push them into a queue which will - // be processed after the whole patch process ended. - queueActivatedComponent(componentInstance); - } else { - activateChildComponent(componentInstance, true /* direct */); - } - } - }, - - destroy: function destroy (vnode) { - var componentInstance = vnode.componentInstance; - if (!componentInstance._isDestroyed) { - if (!vnode.data.keepAlive) { - componentInstance.$destroy(); - } else { - deactivateChildComponent(componentInstance, true /* direct */); - } - } - } -}; - -var hooksToMerge = Object.keys(componentVNodeHooks); - -function createComponent ( - Ctor, - data, - context, - children, - tag -) { - if (isUndef(Ctor)) { - return - } - - var baseCtor = context.$options._base; - - // plain options object: turn it into a constructor - if (isObject(Ctor)) { - Ctor = baseCtor.extend(Ctor); - } - - // if at this stage it's not a constructor or an async component factory, - // reject. - if (typeof Ctor !== 'function') { - { - warn(("Invalid Component definition: " + (String(Ctor))), context); - } - return - } - - // async component - var asyncFactory; - if (isUndef(Ctor.cid)) { - asyncFactory = Ctor; - Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context); - if (Ctor === undefined) { - // return a placeholder node for async component, which is rendered - // as a comment node but preserves all the raw information for the node. - // the information will be used for async server-rendering and hydration. - return createAsyncPlaceholder( - asyncFactory, - data, - context, - children, - tag - ) - } - } - - data = data || {}; - - // resolve constructor options in case global mixins are applied after - // component constructor creation - resolveConstructorOptions(Ctor); - - // transform component v-model data into props & events - if (isDef(data.model)) { - transformModel(Ctor.options, data); - } - - // extract props - var propsData = extractPropsFromVNodeData(data, Ctor, tag); - - // functional component - if (isTrue(Ctor.options.functional)) { - return createFunctionalComponent(Ctor, propsData, data, context, children) - } - - // keep listeners - var listeners = data.on; - - if (isTrue(Ctor.options.abstract)) { - // abstract components do not keep anything - // other than props & listeners & slot - - // work around flow - var slot = data.slot; - data = {}; - if (slot) { - data.slot = slot; - } - } - - // merge component management hooks onto the placeholder node - mergeHooks(data); - - // return a placeholder vnode - var name = Ctor.options.name || tag; - var vnode = new VNode( - ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')), - data, undefined, undefined, undefined, context, - { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children }, - asyncFactory - ); - return vnode -} - -function createComponentInstanceForVnode ( - vnode, // we know it's MountedComponentVNode but flow doesn't - parent, // activeInstance in lifecycle state - parentElm, - refElm -) { - var vnodeComponentOptions = vnode.componentOptions; - var options = { - _isComponent: true, - parent: parent, - propsData: vnodeComponentOptions.propsData, - _componentTag: vnodeComponentOptions.tag, - _parentVnode: vnode, - _parentListeners: vnodeComponentOptions.listeners, - _renderChildren: vnodeComponentOptions.children, - _parentElm: parentElm || null, - _refElm: refElm || null - }; - // check inline-template render functions - var inlineTemplate = vnode.data.inlineTemplate; - if (isDef(inlineTemplate)) { - options.render = inlineTemplate.render; - options.staticRenderFns = inlineTemplate.staticRenderFns; - } - return new vnodeComponentOptions.Ctor(options) -} - -function mergeHooks (data) { - if (!data.hook) { - data.hook = {}; - } - for (var i = 0; i < hooksToMerge.length; i++) { - var key = hooksToMerge[i]; - var fromParent = data.hook[key]; - var ours = componentVNodeHooks[key]; - data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours; - } -} - -function mergeHook$1 (one, two) { - return function (a, b, c, d) { - one(a, b, c, d); - two(a, b, c, d); - } -} - -// transform component v-model info (value and callback) into -// prop and event handler respectively. -function transformModel (options, data) { - var prop = (options.model && options.model.prop) || 'value'; - var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value; - var on = data.on || (data.on = {}); - if (isDef(on[event])) { - on[event] = [data.model.callback].concat(on[event]); - } else { - on[event] = data.model.callback; - } -} - -/* */ - -var SIMPLE_NORMALIZE = 1; -var ALWAYS_NORMALIZE = 2; - -// wrapper function for providing a more flexible interface -// without getting yelled at by flow -function createElement ( - context, - tag, - data, - children, - normalizationType, - alwaysNormalize -) { - if (Array.isArray(data) || isPrimitive(data)) { - normalizationType = children; - children = data; - data = undefined; - } - if (isTrue(alwaysNormalize)) { - normalizationType = ALWAYS_NORMALIZE; - } - return _createElement(context, tag, data, children, normalizationType) -} - -function _createElement ( - context, - tag, - data, - children, - normalizationType -) { - if (isDef(data) && isDef((data).__ob__)) { - "development" !== 'production' && warn( - "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" + - 'Always create fresh vnode data objects in each render!', - context - ); - return createEmptyVNode() - } - // object syntax in v-bind - if (isDef(data) && isDef(data.is)) { - tag = data.is; - } - if (!tag) { - // in case of component :is set to falsy value - return createEmptyVNode() - } - // warn against non-primitive key - if ("development" !== 'production' && - isDef(data) && isDef(data.key) && !isPrimitive(data.key) - ) { - warn( - 'Avoid using non-primitive value as key, ' + - 'use string/number value instead.', - context - ); - } - // support single function children as default scoped slot - if (Array.isArray(children) && - typeof children[0] === 'function' - ) { - data = data || {}; - data.scopedSlots = { default: children[0] }; - children.length = 0; - } - if (normalizationType === ALWAYS_NORMALIZE) { - children = normalizeChildren(children); - } else if (normalizationType === SIMPLE_NORMALIZE) { - children = simpleNormalizeChildren(children); - } - var vnode, ns; - if (typeof tag === 'string') { - var Ctor; - ns = config.getTagNamespace(tag); - if (config.isReservedTag(tag)) { - // platform built-in elements - vnode = new VNode( - config.parsePlatformTagName(tag), data, children, - undefined, undefined, context - ); - } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) { - // component - vnode = createComponent(Ctor, data, context, children, tag); - } else { - // unknown or unlisted namespaced elements - // check at runtime because it may get assigned a namespace when its - // parent normalizes children - vnode = new VNode( - tag, data, children, - undefined, undefined, context - ); - } - } else { - // direct component options / constructor - vnode = createComponent(tag, data, context, children); - } - if (isDef(vnode)) { - if (ns) { applyNS(vnode, ns); } - return vnode - } else { - return createEmptyVNode() - } -} - -function applyNS (vnode, ns) { - vnode.ns = ns; - if (vnode.tag === 'foreignObject') { - // use default namespace inside foreignObject - return - } - if (isDef(vnode.children)) { - for (var i = 0, l = vnode.children.length; i < l; i++) { - var child = vnode.children[i]; - if (isDef(child.tag) && isUndef(child.ns)) { - applyNS(child, ns); - } - } - } -} - -/* */ - -/** - * Runtime helper for rendering v-for lists. - */ -function renderList ( - val, - render -) { - var ret, i, l, keys, key; - if (Array.isArray(val) || typeof val === 'string') { - ret = new Array(val.length); - for (i = 0, l = val.length; i < l; i++) { - ret[i] = render(val[i], i); - } - } else if (typeof val === 'number') { - ret = new Array(val); - for (i = 0; i < val; i++) { - ret[i] = render(i + 1, i); - } - } else if (isObject(val)) { - keys = Object.keys(val); - ret = new Array(keys.length); - for (i = 0, l = keys.length; i < l; i++) { - key = keys[i]; - ret[i] = render(val[key], key, i); - } - } - if (isDef(ret)) { - (ret)._isVList = true; - } - return ret -} - -/* */ - -/** - * Runtime helper for rendering <slot> - */ -function renderSlot ( - name, - fallback, - props, - bindObject -) { - var scopedSlotFn = this.$scopedSlots[name]; - if (scopedSlotFn) { // scoped slot - props = props || {}; - if (bindObject) { - props = extend(extend({}, bindObject), props); - } - return scopedSlotFn(props) || fallback - } else { - var slotNodes = this.$slots[name]; - // warn duplicate slot usage - if (slotNodes && "development" !== 'production') { - slotNodes._rendered && warn( - "Duplicate presence of slot \"" + name + "\" found in the same render tree " + - "- this will likely cause render errors.", - this - ); - slotNodes._rendered = true; - } - return slotNodes || fallback - } -} - -/* */ - -/** - * Runtime helper for resolving filters - */ -function resolveFilter (id) { - return resolveAsset(this.$options, 'filters', id, true) || identity -} - -/* */ - -/** - * Runtime helper for checking keyCodes from config. - */ -function checkKeyCodes ( - eventKeyCode, - key, - builtInAlias -) { - var keyCodes = config.keyCodes[key] || builtInAlias; - if (Array.isArray(keyCodes)) { - return keyCodes.indexOf(eventKeyCode) === -1 - } else { - return keyCodes !== eventKeyCode - } -} - -/* */ - -/** - * Runtime helper for merging v-bind="object" into a VNode's data. - */ -function bindObjectProps ( - data, - tag, - value, - asProp, - isSync -) { - if (value) { - if (!isObject(value)) { - "development" !== 'production' && warn( - 'v-bind without argument expects an Object or Array value', - this - ); - } else { - if (Array.isArray(value)) { - value = toObject(value); - } - var hash; - var loop = function ( key ) { - if ( - key === 'class' || - key === 'style' || - isReservedAttribute(key) - ) { - hash = data; - } else { - var type = data.attrs && data.attrs.type; - hash = asProp || config.mustUseProp(tag, type, key) - ? data.domProps || (data.domProps = {}) - : data.attrs || (data.attrs = {}); - } - if (!(key in hash)) { - hash[key] = value[key]; - - if (isSync) { - var on = data.on || (data.on = {}); - on[("update:" + key)] = function ($event) { - value[key] = $event; - }; - } - } - }; - - for (var key in value) loop( key ); - } - } - return data -} - -/* */ - -/** - * Runtime helper for rendering static trees. - */ -function renderStatic ( - index, - isInFor -) { - var tree = this._staticTrees[index]; - // if has already-rendered static tree and not inside v-for, - // we can reuse the same tree by doing a shallow clone. - if (tree && !isInFor) { - return Array.isArray(tree) - ? cloneVNodes(tree) - : cloneVNode(tree) - } - // otherwise, render a fresh tree. - tree = this._staticTrees[index] = - this.$options.staticRenderFns[index].call(this._renderProxy); - markStatic(tree, ("__static__" + index), false); - return tree -} - -/** - * Runtime helper for v-once. - * Effectively it means marking the node as static with a unique key. - */ -function markOnce ( - tree, - index, - key -) { - markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true); - return tree -} - -function markStatic ( - tree, - key, - isOnce -) { - if (Array.isArray(tree)) { - for (var i = 0; i < tree.length; i++) { - if (tree[i] && typeof tree[i] !== 'string') { - markStaticNode(tree[i], (key + "_" + i), isOnce); - } - } - } else { - markStaticNode(tree, key, isOnce); - } -} - -function markStaticNode (node, key, isOnce) { - node.isStatic = true; - node.key = key; - node.isOnce = isOnce; -} - -/* */ - -function bindObjectListeners (data, value) { - if (value) { - if (!isPlainObject(value)) { - "development" !== 'production' && warn( - 'v-on without argument expects an Object value', - this - ); - } else { - var on = data.on = data.on ? extend({}, data.on) : {}; - for (var key in value) { - var existing = on[key]; - var ours = value[key]; - on[key] = existing ? [].concat(ours, existing) : ours; - } - } - } - return data -} - -/* */ - -function initRender (vm) { - vm._vnode = null; // the root of the child tree - vm._staticTrees = null; - var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree - var renderContext = parentVnode && parentVnode.context; - vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext); - vm.$scopedSlots = emptyObject; - // bind the createElement fn to this instance - // so that we get proper render context inside it. - // args order: tag, data, children, normalizationType, alwaysNormalize - // internal version is used by render functions compiled from templates - vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); }; - // normalization is always applied for the public version, used in - // user-written render functions. - vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); }; - - // $attrs & $listeners are exposed for easier HOC creation. - // they need to be reactive so that HOCs using them are always updated - var parentData = parentVnode && parentVnode.data; - /* istanbul ignore else */ - { - defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () { - !isUpdatingChildComponent && warn("$attrs is readonly.", vm); - }, true); - defineReactive$$1(vm, '$listeners', parentData && parentData.on, function () { - !isUpdatingChildComponent && warn("$listeners is readonly.", vm); - }, true); - } -} - -function renderMixin (Vue) { - Vue.prototype.$nextTick = function (fn) { - return nextTick(fn, this) - }; - - Vue.prototype._render = function () { - var vm = this; - var ref = vm.$options; - var render = ref.render; - var staticRenderFns = ref.staticRenderFns; - var _parentVnode = ref._parentVnode; - - if (vm._isMounted) { - // clone slot nodes on re-renders - for (var key in vm.$slots) { - vm.$slots[key] = cloneVNodes(vm.$slots[key]); - } - } - - vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject; - - if (staticRenderFns && !vm._staticTrees) { - vm._staticTrees = []; - } - // set parent vnode. this allows render functions to have access - // to the data on the placeholder node. - vm.$vnode = _parentVnode; - // render self - var vnode; - try { - vnode = render.call(vm._renderProxy, vm.$createElement); - } catch (e) { - handleError(e, vm, "render function"); - // return error render result, - // or previous vnode to prevent render error causing blank component - /* istanbul ignore else */ - { - vnode = vm.$options.renderError - ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e) - : vm._vnode; - } - } - // return empty vnode in case the render function errored out - if (!(vnode instanceof VNode)) { - if ("development" !== 'production' && Array.isArray(vnode)) { - warn( - 'Multiple root nodes returned from render function. Render function ' + - 'should return a single root node.', - vm - ); - } - vnode = createEmptyVNode(); - } - // set parent - vnode.parent = _parentVnode; - return vnode - }; - - // internal render helpers. - // these are exposed on the instance prototype to reduce generated render - // code size. - Vue.prototype._o = markOnce; - Vue.prototype._n = toNumber; - Vue.prototype._s = toString; - Vue.prototype._l = renderList; - Vue.prototype._t = renderSlot; - Vue.prototype._q = looseEqual; - Vue.prototype._i = looseIndexOf; - Vue.prototype._m = renderStatic; - Vue.prototype._f = resolveFilter; - Vue.prototype._k = checkKeyCodes; - Vue.prototype._b = bindObjectProps; - Vue.prototype._v = createTextVNode; - Vue.prototype._e = createEmptyVNode; - Vue.prototype._u = resolveScopedSlots; - Vue.prototype._g = bindObjectListeners; -} - -/* */ - -var uid$1 = 0; - -function initMixin (Vue) { - Vue.prototype._init = function (options) { - var vm = this; - // a uid - vm._uid = uid$1++; - - var startTag, endTag; - /* istanbul ignore if */ - if ("development" !== 'production' && config.performance && mark) { - startTag = "vue-perf-init:" + (vm._uid); - endTag = "vue-perf-end:" + (vm._uid); - mark(startTag); - } - - // a flag to avoid this being observed - vm._isVue = true; - // merge options - if (options && options._isComponent) { - // optimize internal component instantiation - // since dynamic options merging is pretty slow, and none of the - // internal component options needs special treatment. - initInternalComponent(vm, options); - } else { - vm.$options = mergeOptions( - resolveConstructorOptions(vm.constructor), - options || {}, - vm - ); - } - /* istanbul ignore else */ - { - 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 ("development" !== 'production' && config.performance && mark) { - vm._name = formatComponentName(vm, false); - mark(endTag); - measure(((vm._name) + " init"), startTag, endTag); - } - - if (vm.$options.el) { - vm.$mount(vm.$options.el); - } - }; -} - -function initInternalComponent (vm, options) { - var opts = vm.$options = Object.create(vm.constructor.options); - // doing this because it's faster than dynamic enumeration. - opts.parent = options.parent; - opts.propsData = options.propsData; - opts._parentVnode = options._parentVnode; - opts._parentListeners = options._parentListeners; - opts._renderChildren = options._renderChildren; - opts._componentTag = options._componentTag; - opts._parentElm = options._parentElm; - opts._refElm = options._refElm; - if (options.render) { - opts.render = options.render; - opts.staticRenderFns = options.staticRenderFns; - } -} - -function resolveConstructorOptions (Ctor) { - var options = Ctor.options; - if (Ctor.super) { - var superOptions = resolveConstructorOptions(Ctor.super); - var cachedSuperOptions = Ctor.superOptions; - if (superOptions !== cachedSuperOptions) { - // super option changed, - // need to resolve new options. - Ctor.superOptions = superOptions; - // check if there are any late-modified/attached options (#4976) - var modifiedOptions = resolveModifiedOptions(Ctor); - // update base extend options - if (modifiedOptions) { - extend(Ctor.extendOptions, modifiedOptions); - } - options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions); - if (options.name) { - options.components[options.name] = Ctor; - } - } - } - return options -} - -function resolveModifiedOptions (Ctor) { - var modified; - var latest = Ctor.options; - var extended = Ctor.extendOptions; - var sealed = Ctor.sealedOptions; - for (var key in latest) { - if (latest[key] !== sealed[key]) { - if (!modified) { modified = {}; } - modified[key] = dedupe(latest[key], extended[key], sealed[key]); - } - } - return modified -} - -function dedupe (latest, extended, sealed) { - // compare latest and sealed to ensure lifecycle hooks won't be duplicated - // between merges - if (Array.isArray(latest)) { - var res = []; - sealed = Array.isArray(sealed) ? sealed : [sealed]; - extended = Array.isArray(extended) ? extended : [extended]; - for (var i = 0; i < latest.length; i++) { - // push original options and not sealed options to exclude duplicated options - if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) { - res.push(latest[i]); - } - } - return res - } else { - return latest - } -} - -function Vue$3 (options) { - if ("development" !== 'production' && - !(this instanceof Vue$3) - ) { - warn('Vue is a constructor and should be called with the `new` keyword'); - } - this._init(options); -} - -initMixin(Vue$3); -stateMixin(Vue$3); -eventsMixin(Vue$3); -lifecycleMixin(Vue$3); -renderMixin(Vue$3); - -/* */ - -function initUse (Vue) { - Vue.use = function (plugin) { - var installedPlugins = (this._installedPlugins || (this._installedPlugins = [])); - if (installedPlugins.indexOf(plugin) > -1) { - return this - } - - // additional parameters - var args = toArray(arguments, 1); - args.unshift(this); - if (typeof plugin.install === 'function') { - plugin.install.apply(plugin, args); - } else if (typeof plugin === 'function') { - plugin.apply(null, args); - } - installedPlugins.push(plugin); - return this - }; -} - -/* */ - -function initMixin$1 (Vue) { - Vue.mixin = function (mixin) { - this.options = mergeOptions(this.options, mixin); - return this - }; -} - -/* */ - -function initExtend (Vue) { - /** - * Each instance constructor, including Vue, has a unique - * cid. This enables us to create wrapped "child - * constructors" for prototypal inheritance and cache them. - */ - Vue.cid = 0; - var cid = 1; - - /** - * Class inheritance - */ - Vue.extend = function (extendOptions) { - extendOptions = extendOptions || {}; - var Super = this; - var SuperId = Super.cid; - var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {}); - if (cachedCtors[SuperId]) { - return cachedCtors[SuperId] - } - - var name = extendOptions.name || Super.options.name; - { - if (!/^[a-zA-Z][\w-]*$/.test(name)) { - warn( - 'Invalid component name: "' + name + '". Component names ' + - 'can only contain alphanumeric characters and the hyphen, ' + - 'and must start with a letter.' - ); - } - } - - var Sub = function VueComponent (options) { - this._init(options); - }; - Sub.prototype = Object.create(Super.prototype); - Sub.prototype.constructor = Sub; - Sub.cid = cid++; - Sub.options = mergeOptions( - Super.options, - extendOptions - ); - Sub['super'] = Super; - - // For props and computed properties, we define the proxy getters on - // the Vue instances at extension time, on the extended prototype. This - // avoids Object.defineProperty calls for each instance created. - if (Sub.options.props) { - initProps$1(Sub); - } - if (Sub.options.computed) { - initComputed$1(Sub); - } - - // allow further extension/mixin/plugin usage - Sub.extend = Super.extend; - Sub.mixin = Super.mixin; - Sub.use = Super.use; - - // create asset registers, so extended classes - // can have their private assets too. - ASSET_TYPES.forEach(function (type) { - Sub[type] = Super[type]; - }); - // enable recursive self-lookup - if (name) { - Sub.options.components[name] = Sub; - } - - // keep a reference to the super options at extension time. - // later at instantiation we can check if Super's options have - // been updated. - Sub.superOptions = Super.options; - Sub.extendOptions = extendOptions; - Sub.sealedOptions = extend({}, Sub.options); - - // cache constructor - cachedCtors[SuperId] = Sub; - return Sub - }; -} - -function initProps$1 (Comp) { - var props = Comp.options.props; - for (var key in props) { - proxy(Comp.prototype, "_props", key); - } -} - -function initComputed$1 (Comp) { - var computed = Comp.options.computed; - for (var key in computed) { - defineComputed(Comp.prototype, key, computed[key]); - } -} - -/* */ - -function initAssetRegisters (Vue) { - /** - * Create asset registration methods. - */ - ASSET_TYPES.forEach(function (type) { - Vue[type] = function ( - id, - definition - ) { - if (!definition) { - return this.options[type + 's'][id] - } else { - /* istanbul ignore if */ - { - if (type === 'component' && config.isReservedTag(id)) { - warn( - 'Do not use built-in or reserved HTML elements as component ' + - 'id: ' + id - ); - } - } - if (type === 'component' && isPlainObject(definition)) { - definition.name = definition.name || id; - definition = this.options._base.extend(definition); - } - if (type === 'directive' && typeof definition === 'function') { - definition = { bind: definition, update: definition }; - } - this.options[type + 's'][id] = definition; - return definition - } - }; - }); -} - -/* */ - -var patternTypes = [String, RegExp, Array]; - -function getComponentName (opts) { - return opts && (opts.Ctor.options.name || opts.tag) -} - -function matches (pattern, name) { - if (Array.isArray(pattern)) { - return pattern.indexOf(name) > -1 - } else if (typeof pattern === 'string') { - return pattern.split(',').indexOf(name) > -1 - } else if (isRegExp(pattern)) { - return pattern.test(name) - } - /* istanbul ignore next */ - return false -} - -function pruneCache (cache, current, filter) { - for (var key in cache) { - var cachedNode = cache[key]; - if (cachedNode) { - var name = getComponentName(cachedNode.componentOptions); - if (name && !filter(name)) { - if (cachedNode !== current) { - pruneCacheEntry(cachedNode); - } - cache[key] = null; - } - } - } -} - -function pruneCacheEntry (vnode) { - if (vnode) { - vnode.componentInstance.$destroy(); - } -} - -var KeepAlive = { - name: 'keep-alive', - abstract: true, - - props: { - include: patternTypes, - exclude: patternTypes - }, - - created: function created () { - this.cache = Object.create(null); - }, - - destroyed: function destroyed () { - var this$1 = this; - - for (var key in this$1.cache) { - pruneCacheEntry(this$1.cache[key]); - } - }, - - watch: { - include: function include (val) { - pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); }); - }, - exclude: function exclude (val) { - pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); }); - } - }, - - render: function render () { - var vnode = getFirstComponentChild(this.$slots.default); - var componentOptions = vnode && vnode.componentOptions; - if (componentOptions) { - // check pattern - var name = getComponentName(componentOptions); - if (name && ( - (this.include && !matches(this.include, name)) || - (this.exclude && matches(this.exclude, name)) - )) { - return vnode - } - var key = vnode.key == null - // same constructor may get registered as different local components - // so cid alone is not enough (#3269) - ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '') - : vnode.key; - if (this.cache[key]) { - vnode.componentInstance = this.cache[key].componentInstance; - } else { - this.cache[key] = vnode; - } - vnode.data.keepAlive = true; - } - return vnode - } -}; - -var builtInComponents = { - KeepAlive: KeepAlive -}; - -/* */ - -function initGlobalAPI (Vue) { - // config - var configDef = {}; - configDef.get = function () { return config; }; - { - configDef.set = function () { - warn( - 'Do not replace the Vue.config object, set individual fields instead.' - ); - }; - } - Object.defineProperty(Vue, 'config', configDef); - - // exposed util methods. - // NOTE: these are not considered part of the public API - avoid relying on - // them unless you are aware of the risk. - Vue.util = { - warn: warn, - extend: extend, - mergeOptions: mergeOptions, - defineReactive: defineReactive$$1 - }; - - Vue.set = set; - Vue.delete = del; - Vue.nextTick = nextTick; - - Vue.options = Object.create(null); - ASSET_TYPES.forEach(function (type) { - Vue.options[type + 's'] = Object.create(null); - }); - - // this is used to identify the "base" constructor to extend all plain-object - // components with in Weex's multi-instance scenarios. - Vue.options._base = Vue; - - extend(Vue.options.components, builtInComponents); - - initUse(Vue); - initMixin$1(Vue); - initExtend(Vue); - initAssetRegisters(Vue); -} - -initGlobalAPI(Vue$3); - -Object.defineProperty(Vue$3.prototype, '$isServer', { - get: isServerRendering -}); - -Object.defineProperty(Vue$3.prototype, '$ssrContext', { - get: function get () { - /* istanbul ignore next */ - return this.$vnode && this.$vnode.ssrContext - } -}); - -Vue$3.version = '2.4.0'; - -/* */ - -// these are reserved for web because they are directly compiled away -// during template compilation -var isReservedAttr = makeMap('style,class'); - -// attributes that should be using props for binding -var acceptValue = makeMap('input,textarea,option,select'); -var mustUseProp = function (tag, type, attr) { - return ( - (attr === 'value' && acceptValue(tag)) && type !== 'button' || - (attr === 'selected' && tag === 'option') || - (attr === 'checked' && tag === 'input') || - (attr === 'muted' && tag === 'video') - ) -}; - -var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck'); - -var isBooleanAttr = makeMap( - 'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' + - 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' + - 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' + - 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' + - 'required,reversed,scoped,seamless,selected,sortable,translate,' + - 'truespeed,typemustmatch,visible' -); - -var xlinkNS = 'http://www.w3.org/1999/xlink'; - -var isXlink = function (name) { - return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink' -}; - -var getXlinkProp = function (name) { - return isXlink(name) ? name.slice(6, name.length) : '' -}; - -var isFalsyAttrValue = function (val) { - return val == null || val === false -}; - -/* */ - -function genClassForVnode (vnode) { - var data = vnode.data; - var parentNode = vnode; - var childNode = vnode; - while (isDef(childNode.componentInstance)) { - childNode = childNode.componentInstance._vnode; - if (childNode.data) { - data = mergeClassData(childNode.data, data); - } - } - while (isDef(parentNode = parentNode.parent)) { - if (parentNode.data) { - data = mergeClassData(data, parentNode.data); - } - } - return renderClass(data.staticClass, data.class) -} - -function mergeClassData (child, parent) { - return { - staticClass: concat(child.staticClass, parent.staticClass), - class: isDef(child.class) - ? [child.class, parent.class] - : parent.class - } -} - -function renderClass ( - staticClass, - dynamicClass -) { - if (isDef(staticClass) || isDef(dynamicClass)) { - return concat(staticClass, stringifyClass(dynamicClass)) - } - /* istanbul ignore next */ - return '' -} - -function concat (a, b) { - return a ? b ? (a + ' ' + b) : a : (b || '') -} - -function stringifyClass (value) { - if (Array.isArray(value)) { - return stringifyArray(value) - } - if (isObject(value)) { - return stringifyObject(value) - } - if (typeof value === 'string') { - return value - } - /* istanbul ignore next */ - return '' -} - -function stringifyArray (value) { - var res = ''; - var stringified; - for (var i = 0, l = value.length; i < l; i++) { - if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') { - if (res) { res += ' '; } - res += stringified; - } - } - return res -} - -function stringifyObject (value) { - var res = ''; - for (var key in value) { - if (value[key]) { - if (res) { res += ' '; } - res += key; - } - } - return res -} - -/* */ - -var namespaceMap = { - svg: 'http://www.w3.org/2000/svg', - math: 'http://www.w3.org/1998/Math/MathML' -}; - -var isHTMLTag = makeMap( - 'html,body,base,head,link,meta,style,title,' + - 'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' + - 'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' + - 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' + - 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' + - 'embed,object,param,source,canvas,script,noscript,del,ins,' + - 'caption,col,colgroup,table,thead,tbody,td,th,tr,' + - 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' + - 'output,progress,select,textarea,' + - 'details,dialog,menu,menuitem,summary,' + - 'content,element,shadow,template,blockquote,iframe,tfoot' -); - -// this map is intentionally selective, only covering SVG elements that may -// contain child elements. -var isSVG = makeMap( - 'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' + - 'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' + - 'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view', - true -); - -var isPreTag = function (tag) { return tag === 'pre'; }; - -var isReservedTag = function (tag) { - return isHTMLTag(tag) || isSVG(tag) -}; - -function getTagNamespace (tag) { - if (isSVG(tag)) { - return 'svg' - } - // basic support for MathML - // note it doesn't support other MathML elements being component roots - if (tag === 'math') { - return 'math' - } -} - -var unknownElementCache = Object.create(null); -function isUnknownElement (tag) { - /* istanbul ignore if */ - if (!inBrowser) { - return true - } - if (isReservedTag(tag)) { - return false - } - tag = tag.toLowerCase(); - /* istanbul ignore if */ - if (unknownElementCache[tag] != null) { - return unknownElementCache[tag] - } - var el = document.createElement(tag); - if (tag.indexOf('-') > -1) { - // http://stackoverflow.com/a/28210364/1070244 - return (unknownElementCache[tag] = ( - el.constructor === window.HTMLUnknownElement || - el.constructor === window.HTMLElement - )) - } else { - return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString())) - } -} - -/* */ - -/** - * Query an element selector if it's not an element already. - */ -function query (el) { - if (typeof el === 'string') { - var selected = document.querySelector(el); - if (!selected) { - "development" !== 'production' && warn( - 'Cannot find element: ' + el - ); - return document.createElement('div') - } - return selected - } else { - return el - } -} - -/* */ - -function createElement$1 (tagName, vnode) { - var elm = document.createElement(tagName); - if (tagName !== 'select') { - return elm - } - // false or null will remove the attribute but undefined will not - if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) { - elm.setAttribute('multiple', 'multiple'); - } - return elm -} - -function createElementNS (namespace, tagName) { - return document.createElementNS(namespaceMap[namespace], tagName) -} - -function createTextNode (text) { - return document.createTextNode(text) -} - -function createComment (text) { - return document.createComment(text) -} - -function insertBefore (parentNode, newNode, referenceNode) { - parentNode.insertBefore(newNode, referenceNode); -} - -function removeChild (node, child) { - node.removeChild(child); -} - -function appendChild (node, child) { - node.appendChild(child); -} - -function parentNode (node) { - return node.parentNode -} - -function nextSibling (node) { - return node.nextSibling -} - -function tagName (node) { - return node.tagName -} - -function setTextContent (node, text) { - node.textContent = text; -} - -function setAttribute (node, key, val) { - node.setAttribute(key, val); -} - - -var nodeOps = Object.freeze({ - createElement: createElement$1, - createElementNS: createElementNS, - createTextNode: createTextNode, - createComment: createComment, - insertBefore: insertBefore, - removeChild: removeChild, - appendChild: appendChild, - parentNode: parentNode, - nextSibling: nextSibling, - tagName: tagName, - setTextContent: setTextContent, - setAttribute: setAttribute -}); - -/* */ - -var ref = { - create: function create (_, vnode) { - registerRef(vnode); - }, - update: function update (oldVnode, vnode) { - if (oldVnode.data.ref !== vnode.data.ref) { - registerRef(oldVnode, true); - registerRef(vnode); - } - }, - destroy: function destroy (vnode) { - registerRef(vnode, true); - } -}; - -function registerRef (vnode, isRemoval) { - var key = vnode.data.ref; - if (!key) { return } - - var vm = vnode.context; - var ref = vnode.componentInstance || vnode.elm; - var refs = vm.$refs; - if (isRemoval) { - if (Array.isArray(refs[key])) { - remove(refs[key], ref); - } else if (refs[key] === ref) { - refs[key] = undefined; - } - } else { - if (vnode.data.refInFor) { - if (!Array.isArray(refs[key])) { - refs[key] = [ref]; - } else if (refs[key].indexOf(ref) < 0) { - // $flow-disable-line - refs[key].push(ref); - } - } else { - refs[key] = ref; - } - } -} - -/** - * Virtual DOM patching algorithm based on Snabbdom by - * Simon Friis Vindum (@paldepind) - * Licensed under the MIT License - * https://github.com/paldepind/snabbdom/blob/master/LICENSE - * - * modified by Evan You (@yyx990803) - * - -/* - * Not type-checking this because this file is perf-critical and the cost - * of making flow understand it is not worth it. - */ - -var emptyNode = new VNode('', {}, []); - -var hooks = ['create', 'activate', 'update', 'remove', 'destroy']; - -function sameVnode (a, b) { - return ( - a.key === b.key && ( - ( - a.tag === b.tag && - a.isComment === b.isComment && - isDef(a.data) === isDef(b.data) && - sameInputType(a, b) - ) || ( - isTrue(a.isAsyncPlaceholder) && - a.asyncFactory === b.asyncFactory && - isUndef(b.asyncFactory.error) - ) - ) - ) -} - -// Some browsers do not support dynamically changing type for <input> -// so they need to be treated as different nodes -function sameInputType (a, b) { - if (a.tag !== 'input') { return true } - var i; - var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type; - var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type; - return typeA === typeB -} - -function createKeyToOldIdx (children, beginIdx, endIdx) { - var i, key; - var map = {}; - for (i = beginIdx; i <= endIdx; ++i) { - key = children[i].key; - if (isDef(key)) { map[key] = i; } - } - return map -} - -function createPatchFunction (backend) { - var i, j; - var cbs = {}; - - var modules = backend.modules; - var nodeOps = backend.nodeOps; - - for (i = 0; i < hooks.length; ++i) { - cbs[hooks[i]] = []; - for (j = 0; j < modules.length; ++j) { - if (isDef(modules[j][hooks[i]])) { - cbs[hooks[i]].push(modules[j][hooks[i]]); - } - } - } - - function emptyNodeAt (elm) { - return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm) - } - - function createRmCb (childElm, listeners) { - function remove$$1 () { - if (--remove$$1.listeners === 0) { - removeNode(childElm); - } - } - remove$$1.listeners = listeners; - return remove$$1 - } - - function removeNode (el) { - var parent = nodeOps.parentNode(el); - // element may have already been removed due to v-html / v-text - if (isDef(parent)) { - nodeOps.removeChild(parent, el); - } - } - - var inPre = 0; - function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) { - vnode.isRootInsert = !nested; // for transition enter check - if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) { - return - } - - var data = vnode.data; - var children = vnode.children; - var tag = vnode.tag; - if (isDef(tag)) { - { - if (data && data.pre) { - inPre++; - } - if ( - !inPre && - !vnode.ns && - !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) && - config.isUnknownElement(tag) - ) { - warn( - 'Unknown custom element: <' + tag + '> - did you ' + - 'register the component correctly? For recursive components, ' + - 'make sure to provide the "name" option.', - vnode.context - ); - } - } - vnode.elm = vnode.ns - ? nodeOps.createElementNS(vnode.ns, tag) - : nodeOps.createElement(tag, vnode); - setScope(vnode); - - /* istanbul ignore if */ - { - createChildren(vnode, children, insertedVnodeQueue); - if (isDef(data)) { - invokeCreateHooks(vnode, insertedVnodeQueue); - } - insert(parentElm, vnode.elm, refElm); - } - - if ("development" !== 'production' && data && data.pre) { - inPre--; - } - } else if (isTrue(vnode.isComment)) { - vnode.elm = nodeOps.createComment(vnode.text); - insert(parentElm, vnode.elm, refElm); - } else { - vnode.elm = nodeOps.createTextNode(vnode.text); - insert(parentElm, vnode.elm, refElm); - } - } - - function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) { - var i = vnode.data; - if (isDef(i)) { - var isReactivated = isDef(vnode.componentInstance) && i.keepAlive; - if (isDef(i = i.hook) && isDef(i = i.init)) { - i(vnode, false /* hydrating */, parentElm, refElm); - } - // after calling the init hook, if the vnode is a child component - // it should've created a child instance and mounted it. the child - // component also has set the placeholder vnode's elm. - // in that case we can just return the element and be done. - if (isDef(vnode.componentInstance)) { - initComponent(vnode, insertedVnodeQueue); - if (isTrue(isReactivated)) { - reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm); - } - return true - } - } - } - - function initComponent (vnode, insertedVnodeQueue) { - if (isDef(vnode.data.pendingInsert)) { - insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert); - vnode.data.pendingInsert = null; - } - vnode.elm = vnode.componentInstance.$el; - if (isPatchable(vnode)) { - invokeCreateHooks(vnode, insertedVnodeQueue); - setScope(vnode); - } else { - // empty component root. - // skip all element-related modules except for ref (#3455) - registerRef(vnode); - // make sure to invoke the insert hook - insertedVnodeQueue.push(vnode); - } - } - - function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) { - var i; - // hack for #4339: a reactivated component with inner transition - // does not trigger because the inner node's created hooks are not called - // again. It's not ideal to involve module-specific logic in here but - // there doesn't seem to be a better way to do it. - var innerNode = vnode; - while (innerNode.componentInstance) { - innerNode = innerNode.componentInstance._vnode; - if (isDef(i = innerNode.data) && isDef(i = i.transition)) { - for (i = 0; i < cbs.activate.length; ++i) { - cbs.activate[i](emptyNode, innerNode); - } - insertedVnodeQueue.push(innerNode); - break - } - } - // unlike a newly created component, - // a reactivated keep-alive component doesn't insert itself - insert(parentElm, vnode.elm, refElm); - } - - function insert (parent, elm, ref$$1) { - if (isDef(parent)) { - if (isDef(ref$$1)) { - if (ref$$1.parentNode === parent) { - nodeOps.insertBefore(parent, elm, ref$$1); - } - } else { - nodeOps.appendChild(parent, elm); - } - } - } - - function createChildren (vnode, children, insertedVnodeQueue) { - if (Array.isArray(children)) { - for (var i = 0; i < children.length; ++i) { - createElm(children[i], insertedVnodeQueue, vnode.elm, null, true); - } - } else if (isPrimitive(vnode.text)) { - nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text)); - } - } - - function isPatchable (vnode) { - while (vnode.componentInstance) { - vnode = vnode.componentInstance._vnode; - } - return isDef(vnode.tag) - } - - function invokeCreateHooks (vnode, insertedVnodeQueue) { - for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) { - cbs.create[i$1](emptyNode, vnode); - } - i = vnode.data.hook; // Reuse variable - if (isDef(i)) { - if (isDef(i.create)) { i.create(emptyNode, vnode); } - if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); } - } - } - - // set scope id attribute for scoped CSS. - // this is implemented as a special case to avoid the overhead - // of going through the normal attribute patching process. - function setScope (vnode) { - var i; - var ancestor = vnode; - while (ancestor) { - if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) { - nodeOps.setAttribute(vnode.elm, i, ''); - } - ancestor = ancestor.parent; - } - // for slot content they should also get the scopeId from the host instance. - if (isDef(i = activeInstance) && - i !== vnode.context && - isDef(i = i.$options._scopeId) - ) { - nodeOps.setAttribute(vnode.elm, i, ''); - } - } - - function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) { - for (; startIdx <= endIdx; ++startIdx) { - createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm); - } - } - - function invokeDestroyHook (vnode) { - var i, j; - var data = vnode.data; - if (isDef(data)) { - if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); } - for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); } - } - if (isDef(i = vnode.children)) { - for (j = 0; j < vnode.children.length; ++j) { - invokeDestroyHook(vnode.children[j]); - } - } - } - - function removeVnodes (parentElm, vnodes, startIdx, endIdx) { - for (; startIdx <= endIdx; ++startIdx) { - var ch = vnodes[startIdx]; - if (isDef(ch)) { - if (isDef(ch.tag)) { - removeAndInvokeRemoveHook(ch); - invokeDestroyHook(ch); - } else { // Text node - removeNode(ch.elm); - } - } - } - } - - function removeAndInvokeRemoveHook (vnode, rm) { - if (isDef(rm) || isDef(vnode.data)) { - var i; - var listeners = cbs.remove.length + 1; - if (isDef(rm)) { - // we have a recursively passed down rm callback - // increase the listeners count - rm.listeners += listeners; - } else { - // directly removing - rm = createRmCb(vnode.elm, listeners); - } - // recursively invoke hooks on child component root node - if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) { - removeAndInvokeRemoveHook(i, rm); - } - for (i = 0; i < cbs.remove.length; ++i) { - cbs.remove[i](vnode, rm); - } - if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) { - i(vnode, rm); - } else { - rm(); - } - } else { - removeNode(vnode.elm); - } - } - - function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) { - var oldStartIdx = 0; - var newStartIdx = 0; - var oldEndIdx = oldCh.length - 1; - var oldStartVnode = oldCh[0]; - var oldEndVnode = oldCh[oldEndIdx]; - var newEndIdx = newCh.length - 1; - var newStartVnode = newCh[0]; - var newEndVnode = newCh[newEndIdx]; - var oldKeyToIdx, idxInOld, elmToMove, refElm; - - // removeOnly is a special flag used only by <transition-group> - // to ensure removed elements stay in correct relative positions - // during leaving transitions - var canMove = !removeOnly; - - while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) { - if (isUndef(oldStartVnode)) { - oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left - } else if (isUndef(oldEndVnode)) { - oldEndVnode = oldCh[--oldEndIdx]; - } else if (sameVnode(oldStartVnode, newStartVnode)) { - patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue); - oldStartVnode = oldCh[++oldStartIdx]; - newStartVnode = newCh[++newStartIdx]; - } else if (sameVnode(oldEndVnode, newEndVnode)) { - patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue); - oldEndVnode = oldCh[--oldEndIdx]; - newEndVnode = newCh[--newEndIdx]; - } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right - patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue); - canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm)); - oldStartVnode = oldCh[++oldStartIdx]; - newEndVnode = newCh[--newEndIdx]; - } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left - patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue); - canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm); - oldEndVnode = oldCh[--oldEndIdx]; - newStartVnode = newCh[++newStartIdx]; - } else { - if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); } - idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null; - if (isUndef(idxInOld)) { // New element - createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm); - newStartVnode = newCh[++newStartIdx]; - } else { - elmToMove = oldCh[idxInOld]; - /* istanbul ignore if */ - if ("development" !== 'production' && !elmToMove) { - warn( - 'It seems there are duplicate keys that is causing an update error. ' + - 'Make sure each v-for item has a unique key.' - ); - } - if (sameVnode(elmToMove, newStartVnode)) { - patchVnode(elmToMove, newStartVnode, insertedVnodeQueue); - oldCh[idxInOld] = undefined; - canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm); - newStartVnode = newCh[++newStartIdx]; - } else { - // same key but different element. treat as new element - createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm); - newStartVnode = newCh[++newStartIdx]; - } - } - } - } - if (oldStartIdx > oldEndIdx) { - refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm; - addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue); - } else if (newStartIdx > newEndIdx) { - removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx); - } - } - - function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) { - if (oldVnode === vnode) { - return - } - - var elm = vnode.elm = oldVnode.elm; - - if (isTrue(oldVnode.isAsyncPlaceholder)) { - if (isDef(vnode.asyncFactory.resolved)) { - hydrate(oldVnode.elm, vnode, insertedVnodeQueue); - } else { - vnode.isAsyncPlaceholder = true; - } - return - } - - // reuse element for static trees. - // note we only do this if the vnode is cloned - - // if the new node is not cloned it means the render functions have been - // reset by the hot-reload-api and we need to do a proper re-render. - if (isTrue(vnode.isStatic) && - isTrue(oldVnode.isStatic) && - vnode.key === oldVnode.key && - (isTrue(vnode.isCloned) || isTrue(vnode.isOnce)) - ) { - vnode.componentInstance = oldVnode.componentInstance; - return - } - - var i; - var data = vnode.data; - if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) { - i(oldVnode, vnode); - } - - var oldCh = oldVnode.children; - var ch = vnode.children; - if (isDef(data) && isPatchable(vnode)) { - for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); } - if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); } - } - if (isUndef(vnode.text)) { - if (isDef(oldCh) && isDef(ch)) { - if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); } - } else if (isDef(ch)) { - if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); } - addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue); - } else if (isDef(oldCh)) { - removeVnodes(elm, oldCh, 0, oldCh.length - 1); - } else if (isDef(oldVnode.text)) { - nodeOps.setTextContent(elm, ''); - } - } else if (oldVnode.text !== vnode.text) { - nodeOps.setTextContent(elm, vnode.text); - } - if (isDef(data)) { - if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); } - } - } - - function invokeInsertHook (vnode, queue, initial) { - // delay insert hooks for component root nodes, invoke them after the - // element is really inserted - if (isTrue(initial) && isDef(vnode.parent)) { - vnode.parent.data.pendingInsert = queue; - } else { - for (var i = 0; i < queue.length; ++i) { - queue[i].data.hook.insert(queue[i]); - } - } - } - - var bailed = false; - // list of modules that can skip create hook during hydration because they - // are already rendered on the client or has no need for initialization - var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key'); - - // Note: this is a browser-only function so we can assume elms are DOM nodes. - function hydrate (elm, vnode, insertedVnodeQueue) { - if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) { - vnode.elm = elm; - vnode.isAsyncPlaceholder = true; - return true - } - { - if (!assertNodeMatch(elm, vnode)) { - return false - } - } - vnode.elm = elm; - var tag = vnode.tag; - var data = vnode.data; - var children = vnode.children; - if (isDef(data)) { - if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); } - if (isDef(i = vnode.componentInstance)) { - // child component. it should have hydrated its own tree. - initComponent(vnode, insertedVnodeQueue); - return true - } - } - if (isDef(tag)) { - if (isDef(children)) { - // empty element, allow client to pick up and populate children - if (!elm.hasChildNodes()) { - createChildren(vnode, children, insertedVnodeQueue); - } else { - var childrenMatch = true; - var childNode = elm.firstChild; - for (var i$1 = 0; i$1 < children.length; i$1++) { - if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) { - childrenMatch = false; - break - } - childNode = childNode.nextSibling; - } - // if childNode is not null, it means the actual childNodes list is - // longer than the virtual children list. - if (!childrenMatch || childNode) { - if ("development" !== 'production' && - typeof console !== 'undefined' && - !bailed - ) { - bailed = true; - console.warn('Parent: ', elm); - console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children); - } - return false - } - } - } - if (isDef(data)) { - for (var key in data) { - if (!isRenderedModule(key)) { - invokeCreateHooks(vnode, insertedVnodeQueue); - break - } - } - } - } else if (elm.data !== vnode.text) { - elm.data = vnode.text; - } - return true - } - - function assertNodeMatch (node, vnode) { - if (isDef(vnode.tag)) { - return ( - vnode.tag.indexOf('vue-component') === 0 || - vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase()) - ) - } else { - return node.nodeType === (vnode.isComment ? 8 : 3) - } - } - - return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) { - if (isUndef(vnode)) { - if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); } - return - } - - var isInitialPatch = false; - var insertedVnodeQueue = []; - - if (isUndef(oldVnode)) { - // empty mount (likely as component), create new root element - isInitialPatch = true; - createElm(vnode, insertedVnodeQueue, parentElm, refElm); - } else { - var isRealElement = isDef(oldVnode.nodeType); - if (!isRealElement && sameVnode(oldVnode, vnode)) { - // patch existing root node - patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly); - } else { - if (isRealElement) { - // mounting to a real element - // check if this is server-rendered content and if we can perform - // a successful hydration. - if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) { - oldVnode.removeAttribute(SSR_ATTR); - hydrating = true; - } - if (isTrue(hydrating)) { - if (hydrate(oldVnode, vnode, insertedVnodeQueue)) { - invokeInsertHook(vnode, insertedVnodeQueue, true); - return oldVnode - } else { - warn( - 'The client-side rendered virtual DOM tree is not matching ' + - 'server-rendered content. This is likely caused by incorrect ' + - 'HTML markup, for example nesting block-level elements inside ' + - '<p>, or missing <tbody>. Bailing hydration and performing ' + - 'full client-side render.' - ); - } - } - // either not server-rendered, or hydration failed. - // create an empty node and replace it - oldVnode = emptyNodeAt(oldVnode); - } - // replacing existing element - var oldElm = oldVnode.elm; - var parentElm$1 = nodeOps.parentNode(oldElm); - createElm( - vnode, - insertedVnodeQueue, - // extremely rare edge case: do not insert if old element is in a - // leaving transition. Only happens when combining transition + - // keep-alive + HOCs. (#4590) - oldElm._leaveCb ? null : parentElm$1, - nodeOps.nextSibling(oldElm) - ); - - if (isDef(vnode.parent)) { - // component root element replaced. - // update parent placeholder node element, recursively - var ancestor = vnode.parent; - while (ancestor) { - ancestor.elm = vnode.elm; - ancestor = ancestor.parent; - } - if (isPatchable(vnode)) { - for (var i = 0; i < cbs.create.length; ++i) { - cbs.create[i](emptyNode, vnode.parent); - } - } - } - - if (isDef(parentElm$1)) { - removeVnodes(parentElm$1, [oldVnode], 0, 0); - } else if (isDef(oldVnode.tag)) { - invokeDestroyHook(oldVnode); - } - } - } - - invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch); - return vnode.elm - } -} - -/* */ - -var directives = { - create: updateDirectives, - update: updateDirectives, - destroy: function unbindDirectives (vnode) { - updateDirectives(vnode, emptyNode); - } -}; - -function updateDirectives (oldVnode, vnode) { - if (oldVnode.data.directives || vnode.data.directives) { - _update(oldVnode, vnode); - } -} - -function _update (oldVnode, vnode) { - var isCreate = oldVnode === emptyNode; - var isDestroy = vnode === emptyNode; - var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context); - var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context); - - var dirsWithInsert = []; - var dirsWithPostpatch = []; - - var key, oldDir, dir; - for (key in newDirs) { - oldDir = oldDirs[key]; - dir = newDirs[key]; - if (!oldDir) { - // new directive, bind - callHook$1(dir, 'bind', vnode, oldVnode); - if (dir.def && dir.def.inserted) { - dirsWithInsert.push(dir); - } - } else { - // existing directive, update - dir.oldValue = oldDir.value; - callHook$1(dir, 'update', vnode, oldVnode); - if (dir.def && dir.def.componentUpdated) { - dirsWithPostpatch.push(dir); - } - } - } - - if (dirsWithInsert.length) { - var callInsert = function () { - for (var i = 0; i < dirsWithInsert.length; i++) { - callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode); - } - }; - if (isCreate) { - mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert); - } else { - callInsert(); - } - } - - if (dirsWithPostpatch.length) { - mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () { - for (var i = 0; i < dirsWithPostpatch.length; i++) { - callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode); - } - }); - } - - if (!isCreate) { - for (key in oldDirs) { - if (!newDirs[key]) { - // no longer present, unbind - callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy); - } - } - } -} - -var emptyModifiers = Object.create(null); - -function normalizeDirectives$1 ( - dirs, - vm -) { - var res = Object.create(null); - if (!dirs) { - return res - } - var i, dir; - for (i = 0; i < dirs.length; i++) { - dir = dirs[i]; - if (!dir.modifiers) { - dir.modifiers = emptyModifiers; - } - res[getRawDirName(dir)] = dir; - dir.def = resolveAsset(vm.$options, 'directives', dir.name, true); - } - return res -} - -function getRawDirName (dir) { - return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.'))) -} - -function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) { - var fn = dir.def && dir.def[hook]; - if (fn) { - try { - fn(vnode.elm, dir, vnode, oldVnode, isDestroy); - } catch (e) { - handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook")); - } - } -} - -var baseModules = [ - ref, - directives -]; - -/* */ - -function updateAttrs (oldVnode, vnode) { - var opts = vnode.componentOptions; - if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) { - return - } - if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) { - return - } - var key, cur, old; - var elm = vnode.elm; - var oldAttrs = oldVnode.data.attrs || {}; - var attrs = vnode.data.attrs || {}; - // clone observed objects, as the user probably wants to mutate it - if (isDef(attrs.__ob__)) { - attrs = vnode.data.attrs = extend({}, attrs); - } - - for (key in attrs) { - cur = attrs[key]; - old = oldAttrs[key]; - if (old !== cur) { - setAttr(elm, key, cur); - } - } - // #4391: in IE9, setting type can reset value for input[type=radio] - /* istanbul ignore if */ - if (isIE9 && attrs.value !== oldAttrs.value) { - setAttr(elm, 'value', attrs.value); - } - for (key in oldAttrs) { - if (isUndef(attrs[key])) { - if (isXlink(key)) { - elm.removeAttributeNS(xlinkNS, getXlinkProp(key)); - } else if (!isEnumeratedAttr(key)) { - elm.removeAttribute(key); - } - } - } -} - -function setAttr (el, key, value) { - if (isBooleanAttr(key)) { - // set attribute for blank value - // e.g. <option disabled>Select one</option> - if (isFalsyAttrValue(value)) { - el.removeAttribute(key); - } else { - el.setAttribute(key, key); - } - } else if (isEnumeratedAttr(key)) { - el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true'); - } else if (isXlink(key)) { - if (isFalsyAttrValue(value)) { - el.removeAttributeNS(xlinkNS, getXlinkProp(key)); - } else { - el.setAttributeNS(xlinkNS, key, value); - } - } else { - if (isFalsyAttrValue(value)) { - el.removeAttribute(key); - } else { - el.setAttribute(key, value); - } - } -} - -var attrs = { - create: updateAttrs, - update: updateAttrs -}; - -/* */ - -function updateClass (oldVnode, vnode) { - var el = vnode.elm; - var data = vnode.data; - var oldData = oldVnode.data; - if ( - isUndef(data.staticClass) && - isUndef(data.class) && ( - isUndef(oldData) || ( - isUndef(oldData.staticClass) && - isUndef(oldData.class) - ) - ) - ) { - return - } - - var cls = genClassForVnode(vnode); - - // handle transition classes - var transitionClass = el._transitionClasses; - if (isDef(transitionClass)) { - cls = concat(cls, stringifyClass(transitionClass)); - } - - // set the class - if (cls !== el._prevClass) { - el.setAttribute('class', cls); - el._prevClass = cls; - } -} - -var klass = { - create: updateClass, - update: updateClass -}; - -/* */ - -var validDivisionCharRE = /[\w).+\-_$\]]/; - -function parseFilters (exp) { - var inSingle = false; - var inDouble = false; - var inTemplateString = false; - var inRegex = false; - var curly = 0; - var square = 0; - var paren = 0; - var lastFilterIndex = 0; - var c, prev, i, expression, filters; - - for (i = 0; i < exp.length; i++) { - prev = c; - c = exp.charCodeAt(i); - if (inSingle) { - if (c === 0x27 && prev !== 0x5C) { inSingle = false; } - } else if (inDouble) { - if (c === 0x22 && prev !== 0x5C) { inDouble = false; } - } else if (inTemplateString) { - if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; } - } else if (inRegex) { - if (c === 0x2f && prev !== 0x5C) { inRegex = false; } - } else if ( - c === 0x7C && // pipe - exp.charCodeAt(i + 1) !== 0x7C && - exp.charCodeAt(i - 1) !== 0x7C && - !curly && !square && !paren - ) { - if (expression === undefined) { - // first filter, end of expression - lastFilterIndex = i + 1; - expression = exp.slice(0, i).trim(); - } else { - pushFilter(); - } - } else { - switch (c) { - case 0x22: inDouble = true; break // " - case 0x27: inSingle = true; break // ' - case 0x60: inTemplateString = true; break // ` - case 0x28: paren++; break // ( - case 0x29: paren--; break // ) - case 0x5B: square++; break // [ - case 0x5D: square--; break // ] - case 0x7B: curly++; break // { - case 0x7D: curly--; break // } - } - if (c === 0x2f) { // / - var j = i - 1; - var p = (void 0); - // find first non-whitespace prev char - for (; j >= 0; j--) { - p = exp.charAt(j); - if (p !== ' ') { break } - } - if (!p || !validDivisionCharRE.test(p)) { - inRegex = true; - } - } - } - } - - if (expression === undefined) { - expression = exp.slice(0, i).trim(); - } else if (lastFilterIndex !== 0) { - pushFilter(); - } - - function pushFilter () { - (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim()); - lastFilterIndex = i + 1; - } - - if (filters) { - for (i = 0; i < filters.length; i++) { - expression = wrapFilter(expression, filters[i]); - } - } - - return expression -} - -function wrapFilter (exp, filter) { - var i = filter.indexOf('('); - if (i < 0) { - // _f: resolveFilter - return ("_f(\"" + filter + "\")(" + exp + ")") - } else { - var name = filter.slice(0, i); - var args = filter.slice(i + 1); - return ("_f(\"" + name + "\")(" + exp + "," + args) - } -} - -/* */ - -function baseWarn (msg) { - console.error(("[Vue compiler]: " + msg)); -} - -function pluckModuleFunction ( - modules, - key -) { - return modules - ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; }) - : [] -} - -function addProp (el, name, value) { - (el.props || (el.props = [])).push({ name: name, value: value }); -} - -function addAttr (el, name, value) { - (el.attrs || (el.attrs = [])).push({ name: name, value: value }); -} - -function addDirective ( - el, - name, - rawName, - value, - arg, - modifiers -) { - (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }); -} - -function addHandler ( - el, - name, - value, - modifiers, - important, - warn -) { - // warn prevent and passive modifier - /* istanbul ignore if */ - if ( - "development" !== 'production' && warn && - modifiers && modifiers.prevent && modifiers.passive - ) { - warn( - 'passive and prevent can\'t be used together. ' + - 'Passive handler can\'t prevent default event.' - ); - } - // check capture modifier - if (modifiers && modifiers.capture) { - delete modifiers.capture; - name = '!' + name; // mark the event as captured - } - if (modifiers && modifiers.once) { - delete modifiers.once; - name = '~' + name; // mark the event as once - } - /* istanbul ignore if */ - if (modifiers && modifiers.passive) { - delete modifiers.passive; - name = '&' + name; // mark the event as passive - } - var events; - if (modifiers && modifiers.native) { - delete modifiers.native; - events = el.nativeEvents || (el.nativeEvents = {}); - } else { - events = el.events || (el.events = {}); - } - var newHandler = { value: value, modifiers: modifiers }; - var handlers = events[name]; - /* istanbul ignore if */ - if (Array.isArray(handlers)) { - important ? handlers.unshift(newHandler) : handlers.push(newHandler); - } else if (handlers) { - events[name] = important ? [newHandler, handlers] : [handlers, newHandler]; - } else { - events[name] = newHandler; - } -} - -function getBindingAttr ( - el, - name, - getStatic -) { - var dynamicValue = - getAndRemoveAttr(el, ':' + name) || - getAndRemoveAttr(el, 'v-bind:' + name); - if (dynamicValue != null) { - return parseFilters(dynamicValue) - } else if (getStatic !== false) { - var staticValue = getAndRemoveAttr(el, name); - if (staticValue != null) { - return JSON.stringify(staticValue) - } - } -} - -function getAndRemoveAttr (el, name) { - var val; - if ((val = el.attrsMap[name]) != null) { - var list = el.attrsList; - for (var i = 0, l = list.length; i < l; i++) { - if (list[i].name === name) { - list.splice(i, 1); - break - } - } - } - return val -} - -/* */ - -/** - * Cross-platform code generation for component v-model - */ -function genComponentModel ( - el, - value, - modifiers -) { - var ref = modifiers || {}; - var number = ref.number; - var trim = ref.trim; - - var baseValueExpression = '$$v'; - var valueExpression = baseValueExpression; - if (trim) { - valueExpression = - "(typeof " + baseValueExpression + " === 'string'" + - "? " + baseValueExpression + ".trim()" + - ": " + baseValueExpression + ")"; - } - if (number) { - valueExpression = "_n(" + valueExpression + ")"; - } - var assignment = genAssignmentCode(value, valueExpression); - - el.model = { - value: ("(" + value + ")"), - expression: ("\"" + value + "\""), - callback: ("function (" + baseValueExpression + ") {" + assignment + "}") - }; -} - -/** - * Cross-platform codegen helper for generating v-model value assignment code. - */ -function genAssignmentCode ( - value, - assignment -) { - var modelRs = parseModel(value); - if (modelRs.idx === null) { - return (value + "=" + assignment) - } else { - return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")") - } -} - -/** - * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val) - * - * for loop possible cases: - * - * - test - * - test[idx] - * - test[test1[idx]] - * - test["a"][idx] - * - xxx.test[a[a].test1[idx]] - * - test.xxx.a["asa"][test1[idx]] - * - */ - -var len; -var str; -var chr; -var index$1; -var expressionPos; -var expressionEndPos; - -function parseModel (val) { - str = val; - len = str.length; - index$1 = expressionPos = expressionEndPos = 0; - - if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) { - return { - exp: val, - idx: null - } - } - - while (!eof()) { - chr = next(); - /* istanbul ignore if */ - if (isStringStart(chr)) { - parseString(chr); - } else if (chr === 0x5B) { - parseBracket(chr); - } - } - - return { - exp: val.substring(0, expressionPos), - idx: val.substring(expressionPos + 1, expressionEndPos) - } -} - -function next () { - return str.charCodeAt(++index$1) -} - -function eof () { - return index$1 >= len -} - -function isStringStart (chr) { - return chr === 0x22 || chr === 0x27 -} - -function parseBracket (chr) { - var inBracket = 1; - expressionPos = index$1; - while (!eof()) { - chr = next(); - if (isStringStart(chr)) { - parseString(chr); - continue - } - if (chr === 0x5B) { inBracket++; } - if (chr === 0x5D) { inBracket--; } - if (inBracket === 0) { - expressionEndPos = index$1; - break - } - } -} - -function parseString (chr) { - var stringQuote = chr; - while (!eof()) { - chr = next(); - if (chr === stringQuote) { - break - } - } -} - -/* */ - -var warn$1; - -// in some cases, the event used has to be determined at runtime -// so we used some reserved tokens during compile. -var RANGE_TOKEN = '__r'; -var CHECKBOX_RADIO_TOKEN = '__c'; - -function model ( - el, - dir, - _warn -) { - warn$1 = _warn; - var value = dir.value; - var modifiers = dir.modifiers; - var tag = el.tag; - var type = el.attrsMap.type; - - { - var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type']; - if (tag === 'input' && dynamicType) { - warn$1( - "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" + - "v-model does not support dynamic input types. Use v-if branches instead." - ); - } - // inputs with type="file" are read only and setting the input's - // value will throw an error. - if (tag === 'input' && type === 'file') { - warn$1( - "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" + - "File inputs are read only. Use a v-on:change listener instead." - ); - } - } - - if (el.component) { - genComponentModel(el, value, modifiers); - // component v-model doesn't need extra runtime - return false - } else if (tag === 'select') { - genSelect(el, value, modifiers); - } else if (tag === 'input' && type === 'checkbox') { - genCheckboxModel(el, value, modifiers); - } else if (tag === 'input' && type === 'radio') { - genRadioModel(el, value, modifiers); - } else if (tag === 'input' || tag === 'textarea') { - genDefaultModel(el, value, modifiers); - } else if (!config.isReservedTag(tag)) { - genComponentModel(el, value, modifiers); - // component v-model doesn't need extra runtime - return false - } else { - warn$1( - "<" + (el.tag) + " v-model=\"" + value + "\">: " + - "v-model is not supported on this element type. " + - 'If you are working with contenteditable, it\'s recommended to ' + - 'wrap a library dedicated for that purpose inside a custom component.' - ); - } - - // ensure runtime directive metadata - return true -} - -function genCheckboxModel ( - el, - value, - modifiers -) { - var number = modifiers && modifiers.number; - var valueBinding = getBindingAttr(el, 'value') || 'null'; - var trueValueBinding = getBindingAttr(el, 'true-value') || 'true'; - var falseValueBinding = getBindingAttr(el, 'false-value') || 'false'; - addProp(el, 'checked', - "Array.isArray(" + value + ")" + - "?_i(" + value + "," + valueBinding + ")>-1" + ( - trueValueBinding === 'true' - ? (":(" + value + ")") - : (":_q(" + value + "," + trueValueBinding + ")") - ) - ); - addHandler(el, CHECKBOX_RADIO_TOKEN, - "var $$a=" + value + "," + - '$$el=$event.target,' + - "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" + - 'if(Array.isArray($$a)){' + - "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," + - '$$i=_i($$a,$$v);' + - "if($$c){$$i<0&&(" + value + "=$$a.concat($$v))}" + - "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" + - "}else{" + (genAssignmentCode(value, '$$c')) + "}", - null, true - ); -} - -function genRadioModel ( - el, - value, - modifiers -) { - var number = modifiers && modifiers.number; - var valueBinding = getBindingAttr(el, 'value') || 'null'; - valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding; - addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")")); - addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true); -} - -function genSelect ( - el, - value, - modifiers -) { - var number = modifiers && modifiers.number; - var selectedVal = "Array.prototype.filter" + - ".call($event.target.options,function(o){return o.selected})" + - ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" + - "return " + (number ? '_n(val)' : 'val') + "})"; - - var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]'; - var code = "var $$selectedVal = " + selectedVal + ";"; - code = code + " " + (genAssignmentCode(value, assignment)); - addHandler(el, 'change', code, null, true); -} - -function genDefaultModel ( - el, - value, - modifiers -) { - var type = el.attrsMap.type; - var ref = modifiers || {}; - var lazy = ref.lazy; - var number = ref.number; - var trim = ref.trim; - var needCompositionGuard = !lazy && type !== 'range'; - var event = lazy - ? 'change' - : type === 'range' - ? RANGE_TOKEN - : 'input'; - - var valueExpression = '$event.target.value'; - if (trim) { - valueExpression = "$event.target.value.trim()"; - } - if (number) { - valueExpression = "_n(" + valueExpression + ")"; - } - - var code = genAssignmentCode(value, valueExpression); - if (needCompositionGuard) { - code = "if($event.target.composing)return;" + code; - } - - addProp(el, 'value', ("(" + value + ")")); - addHandler(el, event, code, null, true); - if (trim || number) { - addHandler(el, 'blur', '$forceUpdate()'); - } -} - -/* */ - -// normalize v-model event tokens that can only be determined at runtime. -// it's important to place the event as the first in the array because -// the whole point is ensuring the v-model callback gets called before -// user-attached handlers. -function normalizeEvents (on) { - var event; - /* istanbul ignore if */ - if (isDef(on[RANGE_TOKEN])) { - // IE input[type=range] only supports `change` event - event = isIE ? 'change' : 'input'; - on[event] = [].concat(on[RANGE_TOKEN], on[event] || []); - delete on[RANGE_TOKEN]; - } - if (isDef(on[CHECKBOX_RADIO_TOKEN])) { - // Chrome fires microtasks in between click/change, leads to #4521 - event = isChrome ? 'click' : 'change'; - on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []); - delete on[CHECKBOX_RADIO_TOKEN]; - } -} - -var target$1; - -function add$1 ( - event, - handler, - once$$1, - capture, - passive -) { - if (once$$1) { - var oldHandler = handler; - var _target = target$1; // save current target element in closure - handler = function (ev) { - var res = arguments.length === 1 - ? oldHandler(ev) - : oldHandler.apply(null, arguments); - if (res !== null) { - remove$2(event, handler, capture, _target); - } - }; - } - target$1.addEventListener( - event, - handler, - supportsPassive - ? { capture: capture, passive: passive } - : capture - ); -} - -function remove$2 ( - event, - handler, - capture, - _target -) { - (_target || target$1).removeEventListener(event, handler, capture); -} - -function updateDOMListeners (oldVnode, vnode) { - var isComponentRoot = isDef(vnode.componentOptions); - var oldOn = isComponentRoot ? oldVnode.data.nativeOn : oldVnode.data.on; - var on = isComponentRoot ? vnode.data.nativeOn : vnode.data.on; - if (isUndef(oldOn) && isUndef(on)) { - return - } - on = on || {}; - oldOn = oldOn || {}; - target$1 = vnode.elm; - normalizeEvents(on); - updateListeners(on, oldOn, add$1, remove$2, vnode.context); -} - -var events = { - create: updateDOMListeners, - update: updateDOMListeners -}; - -/* */ - -function updateDOMProps (oldVnode, vnode) { - if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) { - return - } - var key, cur; - var elm = vnode.elm; - var oldProps = oldVnode.data.domProps || {}; - var props = vnode.data.domProps || {}; - // clone observed objects, as the user probably wants to mutate it - if (isDef(props.__ob__)) { - props = vnode.data.domProps = extend({}, props); - } - - for (key in oldProps) { - if (isUndef(props[key])) { - elm[key] = ''; - } - } - for (key in props) { - cur = props[key]; - // ignore children if the node has textContent or innerHTML, - // as these will throw away existing DOM nodes and cause removal errors - // on subsequent patches (#3360) - if (key === 'textContent' || key === 'innerHTML') { - if (vnode.children) { vnode.children.length = 0; } - if (cur === oldProps[key]) { continue } - } - - if (key === 'value') { - // store value as _value as well since - // non-string values will be stringified - elm._value = cur; - // avoid resetting cursor position when value is the same - var strCur = isUndef(cur) ? '' : String(cur); - if (shouldUpdateValue(elm, vnode, strCur)) { - elm.value = strCur; - } - } else { - elm[key] = cur; - } - } -} - -// check platforms/web/util/attrs.js acceptValue - - -function shouldUpdateValue ( - elm, - vnode, - checkVal -) { - return (!elm.composing && ( - vnode.tag === 'option' || - isDirty(elm, checkVal) || - isInputChanged(elm, checkVal) - )) -} - -function isDirty (elm, checkVal) { - // return true when textbox (.number and .trim) loses focus and its value is - // not equal to the updated value - return document.activeElement !== elm && elm.value !== checkVal -} - -function isInputChanged (elm, newVal) { - var value = elm.value; - var modifiers = elm._vModifiers; // injected by v-model runtime - if (isDef(modifiers) && modifiers.number) { - return toNumber(value) !== toNumber(newVal) - } - if (isDef(modifiers) && modifiers.trim) { - return value.trim() !== newVal.trim() - } - return value !== newVal -} - -var domProps = { - create: updateDOMProps, - update: updateDOMProps -}; - -/* */ - -var parseStyleText = cached(function (cssText) { - var res = {}; - var listDelimiter = /;(?![^(]*\))/g; - var propertyDelimiter = /:(.+)/; - cssText.split(listDelimiter).forEach(function (item) { - if (item) { - var tmp = item.split(propertyDelimiter); - tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim()); - } - }); - return res -}); - -// merge static and dynamic style data on the same vnode -function normalizeStyleData (data) { - var style = normalizeStyleBinding(data.style); - // static style is pre-processed into an object during compilation - // and is always a fresh object, so it's safe to merge into it - return data.staticStyle - ? extend(data.staticStyle, style) - : style -} - -// normalize possible array / string values into Object -function normalizeStyleBinding (bindingStyle) { - if (Array.isArray(bindingStyle)) { - return toObject(bindingStyle) - } - if (typeof bindingStyle === 'string') { - return parseStyleText(bindingStyle) - } - return bindingStyle -} - -/** - * parent component style should be after child's - * so that parent component's style could override it - */ -function getStyle (vnode, checkChild) { - var res = {}; - var styleData; - - if (checkChild) { - var childNode = vnode; - while (childNode.componentInstance) { - childNode = childNode.componentInstance._vnode; - if (childNode.data && (styleData = normalizeStyleData(childNode.data))) { - extend(res, styleData); - } - } - } - - if ((styleData = normalizeStyleData(vnode.data))) { - extend(res, styleData); - } - - var parentNode = vnode; - while ((parentNode = parentNode.parent)) { - if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) { - extend(res, styleData); - } - } - return res -} - -/* */ - -var cssVarRE = /^--/; -var importantRE = /\s*!important$/; -var setProp = function (el, name, val) { - /* istanbul ignore if */ - if (cssVarRE.test(name)) { - el.style.setProperty(name, val); - } else if (importantRE.test(val)) { - el.style.setProperty(name, val.replace(importantRE, ''), 'important'); - } else { - var normalizedName = normalize(name); - if (Array.isArray(val)) { - // Support values array created by autoprefixer, e.g. - // {display: ["-webkit-box", "-ms-flexbox", "flex"]} - // Set them one by one, and the browser will only set those it can recognize - for (var i = 0, len = val.length; i < len; i++) { - el.style[normalizedName] = val[i]; - } - } else { - el.style[normalizedName] = val; - } - } -}; - -var vendorNames = ['Webkit', 'Moz', 'ms']; - -var emptyStyle; -var normalize = cached(function (prop) { - emptyStyle = emptyStyle || document.createElement('div').style; - prop = camelize(prop); - if (prop !== 'filter' && (prop in emptyStyle)) { - return prop - } - var capName = prop.charAt(0).toUpperCase() + prop.slice(1); - for (var i = 0; i < vendorNames.length; i++) { - var name = vendorNames[i] + capName; - if (name in emptyStyle) { - return name - } - } -}); - -function updateStyle (oldVnode, vnode) { - var data = vnode.data; - var oldData = oldVnode.data; - - if (isUndef(data.staticStyle) && isUndef(data.style) && - isUndef(oldData.staticStyle) && isUndef(oldData.style) - ) { - return - } - - var cur, name; - var el = vnode.elm; - var oldStaticStyle = oldData.staticStyle; - var oldStyleBinding = oldData.normalizedStyle || oldData.style || {}; - - // if static style exists, stylebinding already merged into it when doing normalizeStyleData - var oldStyle = oldStaticStyle || oldStyleBinding; - - var style = normalizeStyleBinding(vnode.data.style) || {}; - - // store normalized style under a different key for next diff - // make sure to clone it if it's reactive, since the user likley wants - // to mutate it. - vnode.data.normalizedStyle = isDef(style.__ob__) - ? extend({}, style) - : style; - - var newStyle = getStyle(vnode, true); - - for (name in oldStyle) { - if (isUndef(newStyle[name])) { - setProp(el, name, ''); - } - } - for (name in newStyle) { - cur = newStyle[name]; - if (cur !== oldStyle[name]) { - // ie9 setting to null has no effect, must use empty string - setProp(el, name, cur == null ? '' : cur); - } - } -} - -var style = { - create: updateStyle, - update: updateStyle -}; - -/* */ - -/** - * Add class with compatibility for SVG since classList is not supported on - * SVG elements in IE - */ -function addClass (el, cls) { - /* istanbul ignore if */ - if (!cls || !(cls = cls.trim())) { - return - } - - /* istanbul ignore else */ - if (el.classList) { - if (cls.indexOf(' ') > -1) { - cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); }); - } else { - el.classList.add(cls); - } - } else { - var cur = " " + (el.getAttribute('class') || '') + " "; - if (cur.indexOf(' ' + cls + ' ') < 0) { - el.setAttribute('class', (cur + cls).trim()); - } - } -} - -/** - * Remove class with compatibility for SVG since classList is not supported on - * SVG elements in IE - */ -function removeClass (el, cls) { - /* istanbul ignore if */ - if (!cls || !(cls = cls.trim())) { - return - } - - /* istanbul ignore else */ - if (el.classList) { - if (cls.indexOf(' ') > -1) { - cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); }); - } else { - el.classList.remove(cls); - } - if (!el.classList.length) { - el.removeAttribute('class'); - } - } else { - var cur = " " + (el.getAttribute('class') || '') + " "; - var tar = ' ' + cls + ' '; - while (cur.indexOf(tar) >= 0) { - cur = cur.replace(tar, ' '); - } - cur = cur.trim(); - if (cur) { - el.setAttribute('class', cur); - } else { - el.removeAttribute('class'); - } - } -} - -/* */ - -function resolveTransition (def$$1) { - if (!def$$1) { - return - } - /* istanbul ignore else */ - if (typeof def$$1 === 'object') { - var res = {}; - if (def$$1.css !== false) { - extend(res, autoCssTransition(def$$1.name || 'v')); - } - extend(res, def$$1); - return res - } else if (typeof def$$1 === 'string') { - return autoCssTransition(def$$1) - } -} - -var autoCssTransition = cached(function (name) { - return { - enterClass: (name + "-enter"), - enterToClass: (name + "-enter-to"), - enterActiveClass: (name + "-enter-active"), - leaveClass: (name + "-leave"), - leaveToClass: (name + "-leave-to"), - leaveActiveClass: (name + "-leave-active") - } -}); - -var hasTransition = inBrowser && !isIE9; -var TRANSITION = 'transition'; -var ANIMATION = 'animation'; - -// Transition property/event sniffing -var transitionProp = 'transition'; -var transitionEndEvent = 'transitionend'; -var animationProp = 'animation'; -var animationEndEvent = 'animationend'; -if (hasTransition) { - /* istanbul ignore if */ - if (window.ontransitionend === undefined && - window.onwebkittransitionend !== undefined - ) { - transitionProp = 'WebkitTransition'; - transitionEndEvent = 'webkitTransitionEnd'; - } - if (window.onanimationend === undefined && - window.onwebkitanimationend !== undefined - ) { - animationProp = 'WebkitAnimation'; - animationEndEvent = 'webkitAnimationEnd'; - } -} - -// binding to window is necessary to make hot reload work in IE in strict mode -var raf = inBrowser && window.requestAnimationFrame - ? window.requestAnimationFrame.bind(window) - : setTimeout; - -function nextFrame (fn) { - raf(function () { - raf(fn); - }); -} - -function addTransitionClass (el, cls) { - var transitionClasses = el._transitionClasses || (el._transitionClasses = []); - if (transitionClasses.indexOf(cls) < 0) { - transitionClasses.push(cls); - addClass(el, cls); - } -} - -function removeTransitionClass (el, cls) { - if (el._transitionClasses) { - remove(el._transitionClasses, cls); - } - removeClass(el, cls); -} - -function whenTransitionEnds ( - el, - expectedType, - cb -) { - var ref = getTransitionInfo(el, expectedType); - var type = ref.type; - var timeout = ref.timeout; - var propCount = ref.propCount; - if (!type) { return cb() } - var event = type === TRANSITION ? transitionEndEvent : animationEndEvent; - var ended = 0; - var end = function () { - el.removeEventListener(event, onEnd); - cb(); - }; - var onEnd = function (e) { - if (e.target === el) { - if (++ended >= propCount) { - end(); - } - } - }; - setTimeout(function () { - if (ended < propCount) { - end(); - } - }, timeout + 1); - el.addEventListener(event, onEnd); -} - -var transformRE = /\b(transform|all)(,|$)/; - -function getTransitionInfo (el, expectedType) { - var styles = window.getComputedStyle(el); - var transitionDelays = styles[transitionProp + 'Delay'].split(', '); - var transitionDurations = styles[transitionProp + 'Duration'].split(', '); - var transitionTimeout = getTimeout(transitionDelays, transitionDurations); - var animationDelays = styles[animationProp + 'Delay'].split(', '); - var animationDurations = styles[animationProp + 'Duration'].split(', '); - var animationTimeout = getTimeout(animationDelays, animationDurations); - - var type; - var timeout = 0; - var propCount = 0; - /* istanbul ignore if */ - if (expectedType === TRANSITION) { - if (transitionTimeout > 0) { - type = TRANSITION; - timeout = transitionTimeout; - propCount = transitionDurations.length; - } - } else if (expectedType === ANIMATION) { - if (animationTimeout > 0) { - type = ANIMATION; - timeout = animationTimeout; - propCount = animationDurations.length; - } - } else { - timeout = Math.max(transitionTimeout, animationTimeout); - type = timeout > 0 - ? transitionTimeout > animationTimeout - ? TRANSITION - : ANIMATION - : null; - propCount = type - ? type === TRANSITION - ? transitionDurations.length - : animationDurations.length - : 0; - } - var hasTransform = - type === TRANSITION && - transformRE.test(styles[transitionProp + 'Property']); - return { - type: type, - timeout: timeout, - propCount: propCount, - hasTransform: hasTransform - } -} - -function getTimeout (delays, durations) { - /* istanbul ignore next */ - while (delays.length < durations.length) { - delays = delays.concat(delays); - } - - return Math.max.apply(null, durations.map(function (d, i) { - return toMs(d) + toMs(delays[i]) - })) -} - -function toMs (s) { - return Number(s.slice(0, -1)) * 1000 -} - -/* */ - -function enter (vnode, toggleDisplay) { - var el = vnode.elm; - - // call leave callback now - if (isDef(el._leaveCb)) { - el._leaveCb.cancelled = true; - el._leaveCb(); - } - - var data = resolveTransition(vnode.data.transition); - if (isUndef(data)) { - return - } - - /* istanbul ignore if */ - if (isDef(el._enterCb) || el.nodeType !== 1) { - return - } - - var css = data.css; - var type = data.type; - var enterClass = data.enterClass; - var enterToClass = data.enterToClass; - var enterActiveClass = data.enterActiveClass; - var appearClass = data.appearClass; - var appearToClass = data.appearToClass; - var appearActiveClass = data.appearActiveClass; - var beforeEnter = data.beforeEnter; - var enter = data.enter; - var afterEnter = data.afterEnter; - var enterCancelled = data.enterCancelled; - var beforeAppear = data.beforeAppear; - var appear = data.appear; - var afterAppear = data.afterAppear; - var appearCancelled = data.appearCancelled; - var duration = data.duration; - - // activeInstance will always be the <transition> component managing this - // transition. One edge case to check is when the <transition> is placed - // as the root node of a child component. In that case we need to check - // <transition>'s parent for appear check. - var context = activeInstance; - var transitionNode = activeInstance.$vnode; - while (transitionNode && transitionNode.parent) { - transitionNode = transitionNode.parent; - context = transitionNode.context; - } - - var isAppear = !context._isMounted || !vnode.isRootInsert; - - if (isAppear && !appear && appear !== '') { - return - } - - var startClass = isAppear && appearClass - ? appearClass - : enterClass; - var activeClass = isAppear && appearActiveClass - ? appearActiveClass - : enterActiveClass; - var toClass = isAppear && appearToClass - ? appearToClass - : enterToClass; - - var beforeEnterHook = isAppear - ? (beforeAppear || beforeEnter) - : beforeEnter; - var enterHook = isAppear - ? (typeof appear === 'function' ? appear : enter) - : enter; - var afterEnterHook = isAppear - ? (afterAppear || afterEnter) - : afterEnter; - var enterCancelledHook = isAppear - ? (appearCancelled || enterCancelled) - : enterCancelled; - - var explicitEnterDuration = toNumber( - isObject(duration) - ? duration.enter - : duration - ); - - if ("development" !== 'production' && explicitEnterDuration != null) { - checkDuration(explicitEnterDuration, 'enter', vnode); - } - - var expectsCSS = css !== false && !isIE9; - var userWantsControl = getHookArgumentsLength(enterHook); - - var cb = el._enterCb = once(function () { - if (expectsCSS) { - removeTransitionClass(el, toClass); - removeTransitionClass(el, activeClass); - } - if (cb.cancelled) { - if (expectsCSS) { - removeTransitionClass(el, startClass); - } - enterCancelledHook && enterCancelledHook(el); - } else { - afterEnterHook && afterEnterHook(el); - } - el._enterCb = null; - }); - - if (!vnode.data.show) { - // remove pending leave element on enter by injecting an insert hook - mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () { - var parent = el.parentNode; - var pendingNode = parent && parent._pending && parent._pending[vnode.key]; - if (pendingNode && - pendingNode.tag === vnode.tag && - pendingNode.elm._leaveCb - ) { - pendingNode.elm._leaveCb(); - } - enterHook && enterHook(el, cb); - }); - } - - // start enter transition - beforeEnterHook && beforeEnterHook(el); - if (expectsCSS) { - addTransitionClass(el, startClass); - addTransitionClass(el, activeClass); - nextFrame(function () { - addTransitionClass(el, toClass); - removeTransitionClass(el, startClass); - if (!cb.cancelled && !userWantsControl) { - if (isValidDuration(explicitEnterDuration)) { - setTimeout(cb, explicitEnterDuration); - } else { - whenTransitionEnds(el, type, cb); - } - } - }); - } - - if (vnode.data.show) { - toggleDisplay && toggleDisplay(); - enterHook && enterHook(el, cb); - } - - if (!expectsCSS && !userWantsControl) { - cb(); - } -} - -function leave (vnode, rm) { - var el = vnode.elm; - - // call enter callback now - if (isDef(el._enterCb)) { - el._enterCb.cancelled = true; - el._enterCb(); - } - - var data = resolveTransition(vnode.data.transition); - if (isUndef(data)) { - return rm() - } - - /* istanbul ignore if */ - if (isDef(el._leaveCb) || el.nodeType !== 1) { - return - } - - var css = data.css; - var type = data.type; - var leaveClass = data.leaveClass; - var leaveToClass = data.leaveToClass; - var leaveActiveClass = data.leaveActiveClass; - var beforeLeave = data.beforeLeave; - var leave = data.leave; - var afterLeave = data.afterLeave; - var leaveCancelled = data.leaveCancelled; - var delayLeave = data.delayLeave; - var duration = data.duration; - - var expectsCSS = css !== false && !isIE9; - var userWantsControl = getHookArgumentsLength(leave); - - var explicitLeaveDuration = toNumber( - isObject(duration) - ? duration.leave - : duration - ); - - if ("development" !== 'production' && isDef(explicitLeaveDuration)) { - checkDuration(explicitLeaveDuration, 'leave', vnode); - } - - var cb = el._leaveCb = once(function () { - if (el.parentNode && el.parentNode._pending) { - el.parentNode._pending[vnode.key] = null; - } - if (expectsCSS) { - removeTransitionClass(el, leaveToClass); - removeTransitionClass(el, leaveActiveClass); - } - if (cb.cancelled) { - if (expectsCSS) { - removeTransitionClass(el, leaveClass); - } - leaveCancelled && leaveCancelled(el); - } else { - rm(); - afterLeave && afterLeave(el); - } - el._leaveCb = null; - }); - - if (delayLeave) { - delayLeave(performLeave); - } else { - performLeave(); - } - - function performLeave () { - // the delayed leave may have already been cancelled - if (cb.cancelled) { - return - } - // record leaving element - if (!vnode.data.show) { - (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode; - } - beforeLeave && beforeLeave(el); - if (expectsCSS) { - addTransitionClass(el, leaveClass); - addTransitionClass(el, leaveActiveClass); - nextFrame(function () { - addTransitionClass(el, leaveToClass); - removeTransitionClass(el, leaveClass); - if (!cb.cancelled && !userWantsControl) { - if (isValidDuration(explicitLeaveDuration)) { - setTimeout(cb, explicitLeaveDuration); - } else { - whenTransitionEnds(el, type, cb); - } - } - }); - } - leave && leave(el, cb); - if (!expectsCSS && !userWantsControl) { - cb(); - } - } -} - -// only used in dev mode -function checkDuration (val, name, vnode) { - if (typeof val !== 'number') { - warn( - "<transition> explicit " + name + " duration is not a valid number - " + - "got " + (JSON.stringify(val)) + ".", - vnode.context - ); - } else if (isNaN(val)) { - warn( - "<transition> explicit " + name + " duration is NaN - " + - 'the duration expression might be incorrect.', - vnode.context - ); - } -} - -function isValidDuration (val) { - return typeof val === 'number' && !isNaN(val) -} - -/** - * Normalize a transition hook's argument length. The hook may be: - * - a merged hook (invoker) with the original in .fns - * - a wrapped component method (check ._length) - * - a plain function (.length) - */ -function getHookArgumentsLength (fn) { - if (isUndef(fn)) { - return false - } - var invokerFns = fn.fns; - if (isDef(invokerFns)) { - // invoker - return getHookArgumentsLength( - Array.isArray(invokerFns) - ? invokerFns[0] - : invokerFns - ) - } else { - return (fn._length || fn.length) > 1 - } -} - -function _enter (_, vnode) { - if (vnode.data.show !== true) { - enter(vnode); - } -} - -var transition = inBrowser ? { - create: _enter, - activate: _enter, - remove: function remove$$1 (vnode, rm) { - /* istanbul ignore else */ - if (vnode.data.show !== true) { - leave(vnode, rm); - } else { - rm(); - } - } -} : {}; - -var platformModules = [ - attrs, - klass, - events, - domProps, - style, - transition -]; - -/* */ - -// the directive module should be applied last, after all -// built-in modules have been applied. -var modules = platformModules.concat(baseModules); - -var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules }); - -/** - * Not type checking this file because flow doesn't like attaching - * properties to Elements. - */ - -var isTextInputType = makeMap('text,number,password,search,email,tel,url'); - -/* istanbul ignore if */ -if (isIE9) { - // http://www.matts411.com/post/internet-explorer-9-oninput/ - document.addEventListener('selectionchange', function () { - var el = document.activeElement; - if (el && el.vmodel) { - trigger(el, 'input'); - } - }); -} - -var model$1 = { - inserted: function inserted (el, binding, vnode) { - if (vnode.tag === 'select') { - var cb = function () { - setSelected(el, binding, vnode.context); - }; - cb(); - /* istanbul ignore if */ - if (isIE || isEdge) { - setTimeout(cb, 0); - } - } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) { - el._vModifiers = binding.modifiers; - if (!binding.modifiers.lazy) { - // Safari < 10.2 & UIWebView doesn't fire compositionend when - // switching focus before confirming composition choice - // this also fixes the issue where some browsers e.g. iOS Chrome - // fires "change" instead of "input" on autocomplete. - el.addEventListener('change', onCompositionEnd); - if (!isAndroid) { - el.addEventListener('compositionstart', onCompositionStart); - el.addEventListener('compositionend', onCompositionEnd); - } - /* istanbul ignore if */ - if (isIE9) { - el.vmodel = true; - } - } - } - }, - componentUpdated: function componentUpdated (el, binding, vnode) { - if (vnode.tag === 'select') { - setSelected(el, binding, vnode.context); - // in case the options rendered by v-for have changed, - // it's possible that the value is out-of-sync with the rendered options. - // detect such cases and filter out values that no longer has a matching - // option in the DOM. - var needReset = el.multiple - ? binding.value.some(function (v) { return hasNoMatchingOption(v, el.options); }) - : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, el.options); - if (needReset) { - trigger(el, 'change'); - } - } - } -}; - -function setSelected (el, binding, vm) { - var value = binding.value; - var isMultiple = el.multiple; - if (isMultiple && !Array.isArray(value)) { - "development" !== 'production' && warn( - "<select multiple v-model=\"" + (binding.expression) + "\"> " + - "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)), - vm - ); - return - } - var selected, option; - for (var i = 0, l = el.options.length; i < l; i++) { - option = el.options[i]; - if (isMultiple) { - selected = looseIndexOf(value, getValue(option)) > -1; - if (option.selected !== selected) { - option.selected = selected; - } - } else { - if (looseEqual(getValue(option), value)) { - if (el.selectedIndex !== i) { - el.selectedIndex = i; - } - return - } - } - } - if (!isMultiple) { - el.selectedIndex = -1; - } -} - -function hasNoMatchingOption (value, options) { - for (var i = 0, l = options.length; i < l; i++) { - if (looseEqual(getValue(options[i]), value)) { - return false - } - } - return true -} - -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$$1 && !isIE9) { - vnode.data.show = true; - enter(vnode, function () { - el.style.display = originalDisplay; - }); - } else { - el.style.display = value ? originalDisplay : 'none'; - } - }, - - update: function update (el, ref, vnode) { - var value = ref.value; - var oldValue = ref.oldValue; - - /* istanbul ignore if */ - if (value === oldValue) { return } - vnode = locateNode(vnode); - var transition$$1 = vnode.data && vnode.data.transition; - if (transition$$1 && !isIE9) { - vnode.data.show = true; - if (value) { - enter(vnode, function () { - el.style.display = el.__vOriginalDisplay; - }); - } else { - leave(vnode, function () { - el.style.display = 'none'; - }); - } - } else { - el.style.display = value ? el.__vOriginalDisplay : 'none'; - } - }, - - unbind: function unbind ( - el, - binding, - vnode, - oldVnode, - isDestroy - ) { - if (!isDestroy) { - el.style.display = el.__vOriginalDisplay; - } - } -}; - -var platformDirectives = { - model: model$1, - show: show -}; - -/* */ - -// Provides transition support for a single element/component. -// supports transition mode (out-in / in-out) - -var transitionProps = { - name: String, - appear: Boolean, - css: Boolean, - mode: String, - type: String, - enterClass: String, - leaveClass: String, - enterToClass: String, - leaveToClass: String, - enterActiveClass: String, - leaveActiveClass: String, - appearClass: String, - appearActiveClass: String, - appearToClass: String, - duration: [Number, String, Object] -}; - -// in case the child is also an abstract component, e.g. <keep-alive> -// we want to recursively retrieve the real component to be rendered -function getRealChild (vnode) { - var compOptions = vnode && vnode.componentOptions; - if (compOptions && compOptions.Ctor.options.abstract) { - return getRealChild(getFirstComponentChild(compOptions.children)) - } else { - return vnode - } -} - -function extractTransitionData (comp) { - var data = {}; - var options = comp.$options; - // props - for (var key in options.propsData) { - data[key] = comp[key]; - } - // events. - // extract listeners and pass them directly to the transition methods - var listeners = options._parentListeners; - for (var key$1 in listeners) { - data[camelize(key$1)] = listeners[key$1]; - } - return data -} - -function placeholder (h, rawChild) { - if (/\d-keep-alive$/.test(rawChild.tag)) { - return h('keep-alive', { - props: rawChild.componentOptions.propsData - }) - } -} - -function hasParentTransition (vnode) { - while ((vnode = vnode.parent)) { - if (vnode.data.transition) { - return true - } - } -} - -function isSameChild (child, oldChild) { - return oldChild.key === child.key && oldChild.tag === child.tag -} - -function isAsyncPlaceholder (node) { - return node.isComment && node.asyncFactory -} - -var Transition = { - name: 'transition', - props: transitionProps, - abstract: true, - - render: function render (h) { - var this$1 = this; - - var children = this.$options._renderChildren; - if (!children) { - return - } - - // filter out text nodes (possible whitespaces) - children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); }); - /* istanbul ignore if */ - if (!children.length) { - return - } - - // warn multiple elements - if ("development" !== 'production' && children.length > 1) { - warn( - '<transition> can only be used on a single element. Use ' + - '<transition-group> for lists.', - this.$parent - ); - } - - var mode = this.mode; - - // warn invalid mode - if ("development" !== 'production' && - mode && mode !== 'in-out' && mode !== 'out-in' - ) { - warn( - 'invalid <transition> mode: ' + mode, - this.$parent - ); - } - - var rawChild = children[0]; - - // if this is a component root node and the component's - // parent container node also has transition, skip. - if (hasParentTransition(this.$vnode)) { - return rawChild - } - - // apply transition data to child - // use getRealChild() to ignore abstract components e.g. keep-alive - var child = getRealChild(rawChild); - /* istanbul ignore if */ - if (!child) { - return rawChild - } - - if (this._leaving) { - return placeholder(h, rawChild) - } - - // ensure a key that is unique to the vnode type and to this transition - // component instance. This key will be used to remove pending leaving nodes - // during entering. - var id = "__transition-" + (this._uid) + "-"; - child.key = child.key == null - ? child.isComment - ? id + 'comment' - : id + child.tag - : isPrimitive(child.key) - ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key) - : child.key; - - var data = (child.data || (child.data = {})).transition = extractTransitionData(this); - var oldRawChild = this._vnode; - var oldChild = getRealChild(oldRawChild); - - // mark v-show - // so that the transition module can hand over the control to the directive - if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) { - child.data.show = true; - } - - if ( - oldChild && - oldChild.data && - !isSameChild(child, oldChild) && - !isAsyncPlaceholder(oldChild) - ) { - // replace old child transition data with fresh one - // important for dynamic transitions! - var oldData = oldChild && (oldChild.data.transition = extend({}, data)); - // handle transition mode - if (mode === 'out-in') { - // return placeholder node and queue update when leave finishes - this._leaving = true; - mergeVNodeHook(oldData, 'afterLeave', function () { - this$1._leaving = false; - this$1.$forceUpdate(); - }); - return placeholder(h, rawChild) - } else if (mode === 'in-out') { - if (isAsyncPlaceholder(child)) { - return oldRawChild - } - var delayedLeave; - var performLeave = function () { delayedLeave(); }; - mergeVNodeHook(data, 'afterEnter', performLeave); - mergeVNodeHook(data, 'enterCancelled', performLeave); - mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; }); - } - } - - return rawChild - } -}; - -/* */ - -// Provides transition support for list items. -// supports move transitions using the FLIP technique. - -// Because the vdom's children update algorithm is "unstable" - i.e. -// it doesn't guarantee the relative positioning of removed elements, -// we force transition-group to update its children into two passes: -// in the first pass, we remove all nodes that need to be removed, -// triggering their leaving transition; in the second pass, we insert/move -// into the final desired state. This way in the second pass removed -// nodes will remain where they should be. - -var props = extend({ - tag: String, - moveClass: String -}, transitionProps); - -delete props.mode; - -var TransitionGroup = { - props: props, - - render: function render (h) { - var tag = this.tag || this.$vnode.data.tag || 'span'; - var map = Object.create(null); - var prevChildren = this.prevChildren = this.children; - var rawChildren = this.$slots.default || []; - var children = this.children = []; - var transitionData = extractTransitionData(this); - - for (var i = 0; i < rawChildren.length; i++) { - var c = rawChildren[i]; - if (c.tag) { - if (c.key != null && String(c.key).indexOf('__vlist') !== 0) { - children.push(c); - map[c.key] = c - ;(c.data || (c.data = {})).transition = transitionData; - } else { - var opts = c.componentOptions; - var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag; - warn(("<transition-group> children must be keyed: <" + name + ">")); - } - } - } - - if (prevChildren) { - var kept = []; - var removed = []; - for (var i$1 = 0; i$1 < prevChildren.length; i$1++) { - var c$1 = prevChildren[i$1]; - c$1.data.transition = transitionData; - c$1.data.pos = c$1.elm.getBoundingClientRect(); - if (map[c$1.key]) { - kept.push(c$1); - } else { - removed.push(c$1); - } - } - this.kept = h(tag, null, kept); - this.removed = removed; - } - - return h(tag, null, children) - }, - - beforeUpdate: function beforeUpdate () { - // force removing pass - this.__patch__( - this._vnode, - this.kept, - false, // hydrating - true // removeOnly (!important, avoids unnecessary moves) - ); - this._vnode = this.kept; - }, - - updated: function updated () { - var children = this.prevChildren; - var moveClass = this.moveClass || ((this.name || 'v') + '-move'); - if (!children.length || !this.hasMove(children[0].elm, moveClass)) { - return - } - - // we divide the work into three loops to avoid mixing DOM reads and writes - // in each iteration - which helps prevent layout thrashing. - children.forEach(callPendingCbs); - children.forEach(recordPosition); - children.forEach(applyTranslation); - - // force reflow to put everything in position - var body = document.body; - var f = body.offsetHeight; // eslint-disable-line - - children.forEach(function (c) { - if (c.data.moved) { - var el = c.elm; - var s = el.style; - addTransitionClass(el, moveClass); - s.transform = s.WebkitTransform = s.transitionDuration = ''; - el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) { - if (!e || /transform$/.test(e.propertyName)) { - el.removeEventListener(transitionEndEvent, cb); - el._moveCb = null; - removeTransitionClass(el, moveClass); - } - }); - } - }); - }, - - methods: { - hasMove: function hasMove (el, moveClass) { - /* istanbul ignore if */ - if (!hasTransition) { - return false - } - /* istanbul ignore if */ - if (this._hasMove) { - return this._hasMove - } - // Detect whether an element with the move class applied has - // CSS transitions. Since the element may be inside an entering - // transition at this very moment, we make a clone of it and remove - // all other transition classes applied to ensure only the move class - // is applied. - var clone = el.cloneNode(); - if (el._transitionClasses) { - el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); }); - } - addClass(clone, moveClass); - clone.style.display = 'none'; - this.$el.appendChild(clone); - var info = getTransitionInfo(clone); - this.$el.removeChild(clone); - return (this._hasMove = info.hasTransform) - } - } -}; - -function callPendingCbs (c) { - /* istanbul ignore if */ - if (c.elm._moveCb) { - c.elm._moveCb(); - } - /* istanbul ignore if */ - if (c.elm._enterCb) { - c.elm._enterCb(); - } -} - -function recordPosition (c) { - c.data.newPos = c.elm.getBoundingClientRect(); -} - -function applyTranslation (c) { - var oldPos = c.data.pos; - var newPos = c.data.newPos; - var dx = oldPos.left - newPos.left; - var dy = oldPos.top - newPos.top; - if (dx || dy) { - c.data.moved = true; - var s = c.elm.style; - s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)"; - s.transitionDuration = '0s'; - } -} - -var platformComponents = { - Transition: Transition, - TransitionGroup: TransitionGroup -}; - -/* */ - -// install platform specific utils -Vue$3.config.mustUseProp = mustUseProp; -Vue$3.config.isReservedTag = isReservedTag; -Vue$3.config.isReservedAttr = isReservedAttr; -Vue$3.config.getTagNamespace = getTagNamespace; -Vue$3.config.isUnknownElement = isUnknownElement; - -// install platform runtime directives & components -extend(Vue$3.options.directives, platformDirectives); -extend(Vue$3.options.components, platformComponents); - -// install platform patch function -Vue$3.prototype.__patch__ = inBrowser ? patch : noop; - -// public mount method -Vue$3.prototype.$mount = function ( - el, - hydrating -) { - el = el && inBrowser ? query(el) : undefined; - return mountComponent(this, el, hydrating) -}; - -// devtools global hook -/* istanbul ignore next */ -setTimeout(function () { - if (config.devtools) { - if (devtools) { - devtools.emit('init', Vue$3); - } else if ("development" !== 'production' && isChrome) { - console[console.info ? 'info' : 'log']( - 'Download the Vue Devtools extension for a better development experience:\n' + - 'https://github.com/vuejs/vue-devtools' - ); - } - } - if ("development" !== 'production' && - config.productionTip !== false && - inBrowser && typeof console !== 'undefined' - ) { - console[console.info ? 'info' : 'log']( - "You are running Vue in development mode.\n" + - "Make sure to turn on production mode when deploying for production.\n" + - "See more tips at https://vuejs.org/guide/deployment.html" - ); - } -}, 0); - -/* */ - -// check whether current browser encodes a char inside attribute values -function shouldDecode (content, encoded) { - var div = document.createElement('div'); - div.innerHTML = "<div a=\"" + content + "\"/>"; - return div.innerHTML.indexOf(encoded) > 0 -} - -// #3663 -// IE encodes newlines inside attribute values while other browsers don't -var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', ' ') : false; - -/* */ - -var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g; -var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g; - -var buildRegex = cached(function (delimiters) { - var open = delimiters[0].replace(regexEscapeRE, '\\$&'); - var close = delimiters[1].replace(regexEscapeRE, '\\$&'); - return new RegExp(open + '((?:.|\\n)+?)' + close, 'g') -}); - -function parseText ( - text, - delimiters -) { - var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE; - if (!tagRE.test(text)) { - return - } - var tokens = []; - var lastIndex = tagRE.lastIndex = 0; - var match, index; - while ((match = tagRE.exec(text))) { - index = match.index; - // push text token - if (index > lastIndex) { - tokens.push(JSON.stringify(text.slice(lastIndex, index))); - } - // tag token - var exp = parseFilters(match[1].trim()); - tokens.push(("_s(" + exp + ")")); - lastIndex = index + match[0].length; - } - if (lastIndex < text.length) { - tokens.push(JSON.stringify(text.slice(lastIndex))); - } - return tokens.join('+') -} - -/* */ - -function transformNode (el, options) { - var warn = options.warn || baseWarn; - var staticClass = getAndRemoveAttr(el, 'class'); - if ("development" !== 'production' && staticClass) { - var expression = parseText(staticClass, options.delimiters); - if (expression) { - warn( - "class=\"" + staticClass + "\": " + - 'Interpolation inside attributes has been removed. ' + - 'Use v-bind or the colon shorthand instead. For example, ' + - 'instead of <div class="{{ val }}">, use <div :class="val">.' - ); - } - } - if (staticClass) { - el.staticClass = JSON.stringify(staticClass); - } - var classBinding = getBindingAttr(el, 'class', false /* getStatic */); - if (classBinding) { - el.classBinding = classBinding; - } -} - -function genData (el) { - var data = ''; - if (el.staticClass) { - data += "staticClass:" + (el.staticClass) + ","; - } - if (el.classBinding) { - data += "class:" + (el.classBinding) + ","; - } - return data -} - -var klass$1 = { - staticKeys: ['staticClass'], - transformNode: transformNode, - genData: genData -}; - -/* */ - -function transformNode$1 (el, options) { - var warn = options.warn || baseWarn; - var staticStyle = getAndRemoveAttr(el, 'style'); - if (staticStyle) { - /* istanbul ignore if */ - { - var expression = parseText(staticStyle, options.delimiters); - if (expression) { - warn( - "style=\"" + staticStyle + "\": " + - 'Interpolation inside attributes has been removed. ' + - 'Use v-bind or the colon shorthand instead. For example, ' + - 'instead of <div style="{{ val }}">, use <div :style="val">.' - ); - } - } - el.staticStyle = JSON.stringify(parseStyleText(staticStyle)); - } - - var styleBinding = getBindingAttr(el, 'style', false /* getStatic */); - if (styleBinding) { - el.styleBinding = styleBinding; - } -} - -function genData$1 (el) { - var data = ''; - if (el.staticStyle) { - data += "staticStyle:" + (el.staticStyle) + ","; - } - if (el.styleBinding) { - data += "style:(" + (el.styleBinding) + "),"; - } - return data -} - -var style$1 = { - staticKeys: ['staticStyle'], - transformNode: transformNode$1, - genData: genData$1 -}; - -var modules$1 = [ - klass$1, - style$1 -]; - -/* */ - -function text (el, dir) { - if (dir.value) { - addProp(el, 'textContent', ("_s(" + (dir.value) + ")")); - } -} - -/* */ - -function html (el, dir) { - if (dir.value) { - addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")")); - } -} - -var directives$1 = { - model: model, - text: text, - html: html -}; - -/* */ - -var isUnaryTag = makeMap( - 'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' + - 'link,meta,param,source,track,wbr' -); - -// Elements that you can, intentionally, leave open -// (and which close themselves) -var canBeLeftOpenTag = makeMap( - 'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source' -); - -// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3 -// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content -var isNonPhrasingTag = makeMap( - 'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' + - 'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' + - 'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' + - 'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' + - 'title,tr,track' -); - -/* */ - -var baseOptions = { - expectHTML: true, - modules: modules$1, - directives: directives$1, - isPreTag: isPreTag, - isUnaryTag: isUnaryTag, - mustUseProp: mustUseProp, - canBeLeftOpenTag: canBeLeftOpenTag, - isReservedTag: isReservedTag, - getTagNamespace: getTagNamespace, - staticKeys: genStaticKeys(modules$1) -}; - -/* */ - -var decoder; - -var he = { - decode: function decode (html) { - decoder = decoder || document.createElement('div'); - decoder.innerHTML = html; - return decoder.textContent - } -}; - -/** - * Not type-checking this file because it's mostly vendor code. - */ - -/*! - * HTML Parser By John Resig (ejohn.org) - * Modified by Juriy "kangax" Zaytsev - * Original code by Erik Arvidsson, Mozilla Public License - * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js - */ - -// Regular Expressions for parsing tags and attributes -var singleAttrIdentifier = /([^\s"'<>/=]+)/; -var singleAttrAssign = /(?:=)/; -var singleAttrValues = [ - // attr value double quotes - /"([^"]*)"+/.source, - // attr value, single quotes - /'([^']*)'+/.source, - // attr value, no quotes - /([^\s"'=<>`]+)/.source -]; -var attribute = new RegExp( - '^\\s*' + singleAttrIdentifier.source + - '(?:\\s*(' + singleAttrAssign.source + ')' + - '\\s*(?:' + singleAttrValues.join('|') + '))?' -); - -// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName -// but for Vue templates we can enforce a simple charset -var ncname = '[a-zA-Z_][\\w\\-\\.]*'; -var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')'; -var startTagOpen = new RegExp('^<' + qnameCapture); -var startTagClose = /^\s*(\/?)>/; -var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>'); -var doctype = /^<!DOCTYPE [^>]+>/i; -var comment = /^<!--/; -var conditionalComment = /^<!\[/; - -var IS_REGEX_CAPTURING_BROKEN = false; -'x'.replace(/x(.)?/g, function (m, g) { - IS_REGEX_CAPTURING_BROKEN = g === ''; -}); - -// Special Elements (can contain anything) -var isPlainTextElement = makeMap('script,style,textarea', true); -var reCache = {}; - -var decodingMap = { - '<': '<', - '>': '>', - '"': '"', - '&': '&', - ' ': '\n' -}; -var encodedAttr = /&(?:lt|gt|quot|amp);/g; -var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g; - -// #5992 -var isIgnoreNewlineTag = makeMap('pre,textarea', true); -var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; }; - -function decodeAttr (value, shouldDecodeNewlines) { - var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr; - return value.replace(re, function (match) { return decodingMap[match]; }) -} - -function parseHTML (html, options) { - var stack = []; - var expectHTML = options.expectHTML; - var isUnaryTag$$1 = options.isUnaryTag || no; - var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no; - var index = 0; - var last, lastTag; - while (html) { - last = html; - // Make sure we're not in a plaintext content element like script/style - if (!lastTag || !isPlainTextElement(lastTag)) { - if (shouldIgnoreFirstNewline(lastTag, html)) { - advance(1); - } - var textEnd = html.indexOf('<'); - if (textEnd === 0) { - // Comment: - if (comment.test(html)) { - var commentEnd = html.indexOf('-->'); - - if (commentEnd >= 0) { - if (options.shouldKeepComment) { - options.comment(html.substring(4, commentEnd)); - } - advance(commentEnd + 3); - continue - } - } - - // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment - if (conditionalComment.test(html)) { - var conditionalEnd = html.indexOf(']>'); - - if (conditionalEnd >= 0) { - advance(conditionalEnd + 2); - continue - } - } - - // Doctype: - var doctypeMatch = html.match(doctype); - if (doctypeMatch) { - advance(doctypeMatch[0].length); - continue - } - - // End tag: - var endTagMatch = html.match(endTag); - if (endTagMatch) { - var curIndex = index; - advance(endTagMatch[0].length); - parseEndTag(endTagMatch[1], curIndex, index); - continue - } - - // Start tag: - var startTagMatch = parseStartTag(); - if (startTagMatch) { - handleStartTag(startTagMatch); - continue - } - } - - var text = (void 0), rest = (void 0), next = (void 0); - if (textEnd >= 0) { - rest = html.slice(textEnd); - while ( - !endTag.test(rest) && - !startTagOpen.test(rest) && - !comment.test(rest) && - !conditionalComment.test(rest) - ) { - // < in plain text, be forgiving and treat it as text - next = rest.indexOf('<', 1); - if (next < 0) { break } - textEnd += next; - rest = html.slice(textEnd); - } - text = html.substring(0, textEnd); - advance(textEnd); - } - - if (textEnd < 0) { - text = html; - html = ''; - } - - if (options.chars && text) { - options.chars(text); - } - } else { - var endTagLength = 0; - var stackedTag = lastTag.toLowerCase(); - var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i')); - var rest$1 = html.replace(reStackedTag, function (all, text, endTag) { - endTagLength = endTag.length; - if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') { - text = text - .replace(/<!--([\s\S]*?)-->/g, '$1') - .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1'); - } - if (shouldIgnoreFirstNewline(stackedTag, text)) { - text = text.slice(1); - } - if (options.chars) { - options.chars(text); - } - return '' - }); - index += html.length - rest$1.length; - html = rest$1; - parseEndTag(stackedTag, index - endTagLength, index); - } - - if (html === last) { - options.chars && options.chars(html); - if ("development" !== 'production' && !stack.length && options.warn) { - options.warn(("Mal-formatted tag at end of template: \"" + html + "\"")); - } - break - } - } - - // Clean up any remaining tags - parseEndTag(); - - function advance (n) { - index += n; - html = html.substring(n); - } - - function parseStartTag () { - var start = html.match(startTagOpen); - if (start) { - var match = { - tagName: start[1], - attrs: [], - start: index - }; - advance(start[0].length); - var end, attr; - while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) { - advance(attr[0].length); - match.attrs.push(attr); - } - if (end) { - match.unarySlash = end[1]; - advance(end[0].length); - match.end = index; - return match - } - } - } - - function handleStartTag (match) { - var tagName = match.tagName; - var unarySlash = match.unarySlash; - - if (expectHTML) { - if (lastTag === 'p' && isNonPhrasingTag(tagName)) { - parseEndTag(lastTag); - } - if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) { - parseEndTag(tagName); - } - } - - var unary = isUnaryTag$$1(tagName) || !!unarySlash; - - var l = match.attrs.length; - var attrs = new Array(l); - for (var i = 0; i < l; i++) { - var args = match.attrs[i]; - // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778 - if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) { - if (args[3] === '') { delete args[3]; } - if (args[4] === '') { delete args[4]; } - if (args[5] === '') { delete args[5]; } - } - var value = args[3] || args[4] || args[5] || ''; - attrs[i] = { - name: args[1], - value: decodeAttr( - value, - options.shouldDecodeNewlines - ) - }; - } - - if (!unary) { - stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs }); - lastTag = tagName; - } - - if (options.start) { - options.start(tagName, attrs, unary, match.start, match.end); - } - } - - function parseEndTag (tagName, start, end) { - var pos, lowerCasedTagName; - if (start == null) { start = index; } - if (end == null) { end = index; } - - if (tagName) { - lowerCasedTagName = tagName.toLowerCase(); - } - - // Find the closest opened tag of the same type - if (tagName) { - for (pos = stack.length - 1; pos >= 0; pos--) { - if (stack[pos].lowerCasedTag === lowerCasedTagName) { - break - } - } - } else { - // If no tag name is provided, clean shop - pos = 0; - } - - if (pos >= 0) { - // Close all the open elements, up the stack - for (var i = stack.length - 1; i >= pos; i--) { - if ("development" !== 'production' && - (i > pos || !tagName) && - options.warn - ) { - options.warn( - ("tag <" + (stack[i].tag) + "> has no matching end tag.") - ); - } - if (options.end) { - options.end(stack[i].tag, start, end); - } - } - - // Remove the open elements from the stack - stack.length = pos; - lastTag = pos && stack[pos - 1].tag; - } else if (lowerCasedTagName === 'br') { - if (options.start) { - options.start(tagName, [], true, start, end); - } - } else if (lowerCasedTagName === 'p') { - if (options.start) { - options.start(tagName, [], false, start, end); - } - if (options.end) { - options.end(tagName, start, end); - } - } - } -} - -/* */ - -var onRE = /^@|^v-on:/; -var dirRE = /^v-|^@|^:/; -var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/; -var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/; - -var argRE = /:(.*)$/; -var bindRE = /^:|^v-bind:/; -var modifierRE = /\.[^.]+/g; - -var decodeHTMLCached = cached(he.decode); - -// configurable state -var warn$2; -var delimiters; -var transforms; -var preTransforms; -var postTransforms; -var platformIsPreTag; -var platformMustUseProp; -var platformGetTagNamespace; - -/** - * Convert HTML string to AST. - */ -function parse ( - template, - options -) { - warn$2 = options.warn || baseWarn; - - platformIsPreTag = options.isPreTag || no; - platformMustUseProp = options.mustUseProp || no; - platformGetTagNamespace = options.getTagNamespace || no; - - transforms = pluckModuleFunction(options.modules, 'transformNode'); - preTransforms = pluckModuleFunction(options.modules, 'preTransformNode'); - postTransforms = pluckModuleFunction(options.modules, 'postTransformNode'); - - delimiters = options.delimiters; - - var stack = []; - var preserveWhitespace = options.preserveWhitespace !== false; - var root; - var currentParent; - var inVPre = false; - var inPre = false; - var warned = false; - - function warnOnce (msg) { - if (!warned) { - warned = true; - warn$2(msg); - } - } - - function endPre (element) { - // check pre state - if (element.pre) { - inVPre = false; - } - if (platformIsPreTag(element.tag)) { - inPre = false; - } - } - - parseHTML(template, { - warn: warn$2, - expectHTML: options.expectHTML, - isUnaryTag: options.isUnaryTag, - canBeLeftOpenTag: options.canBeLeftOpenTag, - shouldDecodeNewlines: options.shouldDecodeNewlines, - shouldKeepComment: options.comments, - start: function start (tag, attrs, unary) { - // check namespace. - // inherit parent ns if there is one - var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag); - - // handle IE svg bug - /* istanbul ignore if */ - if (isIE && ns === 'svg') { - attrs = guardIESVGBug(attrs); - } - - var element = { - type: 1, - tag: tag, - attrsList: attrs, - attrsMap: makeAttrsMap(attrs), - parent: currentParent, - children: [] - }; - if (ns) { - element.ns = ns; - } - - if (isForbiddenTag(element) && !isServerRendering()) { - element.forbidden = true; - "development" !== 'production' && warn$2( - 'Templates should only be responsible for mapping the state to the ' + - 'UI. Avoid placing tags with side-effects in your templates, such as ' + - "<" + tag + ">" + ', as they will not be parsed.' - ); - } - - // apply pre-transforms - for (var i = 0; i < preTransforms.length; i++) { - preTransforms[i](element, options); - } - - if (!inVPre) { - processPre(element); - if (element.pre) { - inVPre = true; - } - } - if (platformIsPreTag(element.tag)) { - inPre = true; - } - if (inVPre) { - processRawAttrs(element); - } else { - processFor(element); - processIf(element); - processOnce(element); - processKey(element); - - // determine whether this is a plain element after - // removing structural attributes - element.plain = !element.key && !attrs.length; - - processRef(element); - processSlot(element); - processComponent(element); - for (var i$1 = 0; i$1 < transforms.length; i$1++) { - transforms[i$1](element, options); - } - processAttrs(element); - } - - function checkRootConstraints (el) { - { - if (el.tag === 'slot' || el.tag === 'template') { - warnOnce( - "Cannot use <" + (el.tag) + "> as component root element because it may " + - 'contain multiple nodes.' - ); - } - if (el.attrsMap.hasOwnProperty('v-for')) { - warnOnce( - 'Cannot use v-for on stateful component root element because ' + - 'it renders multiple elements.' - ); - } - } - } - - // tree management - if (!root) { - root = element; - checkRootConstraints(root); - } else if (!stack.length) { - // allow root elements with v-if, v-else-if and v-else - if (root.if && (element.elseif || element.else)) { - checkRootConstraints(element); - addIfCondition(root, { - exp: element.elseif, - block: element - }); - } else { - warnOnce( - "Component template should contain exactly one root element. " + - "If you are using v-if on multiple elements, " + - "use v-else-if to chain them instead." - ); - } - } - if (currentParent && !element.forbidden) { - if (element.elseif || element.else) { - processIfConditions(element, currentParent); - } else if (element.slotScope) { // scoped slot - currentParent.plain = false; - var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element; - } else { - currentParent.children.push(element); - element.parent = currentParent; - } - } - if (!unary) { - currentParent = element; - stack.push(element); - } else { - endPre(element); - } - // apply post-transforms - for (var i$2 = 0; i$2 < postTransforms.length; i$2++) { - postTransforms[i$2](element, options); - } - }, - - end: function end () { - // remove trailing whitespace - var element = stack[stack.length - 1]; - var lastNode = element.children[element.children.length - 1]; - if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) { - element.children.pop(); - } - // pop stack - stack.length -= 1; - currentParent = stack[stack.length - 1]; - endPre(element); - }, - - chars: function chars (text) { - if (!currentParent) { - { - if (text === template) { - warnOnce( - 'Component template requires a root element, rather than just text.' - ); - } else if ((text = text.trim())) { - warnOnce( - ("text \"" + text + "\" outside root element will be ignored.") - ); - } - } - return - } - // IE textarea placeholder bug - /* istanbul ignore if */ - if (isIE && - currentParent.tag === 'textarea' && - currentParent.attrsMap.placeholder === text - ) { - return - } - var children = currentParent.children; - text = inPre || text.trim() - ? isTextTag(currentParent) ? text : decodeHTMLCached(text) - // only preserve whitespace if its not right after a starting tag - : preserveWhitespace && children.length ? ' ' : ''; - if (text) { - var expression; - if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) { - children.push({ - type: 2, - expression: expression, - text: text - }); - } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') { - children.push({ - type: 3, - text: text - }); - } - } - }, - comment: function comment (text) { - currentParent.children.push({ - type: 3, - text: text, - isComment: true - }); - } - }); - return root -} - -function processPre (el) { - if (getAndRemoveAttr(el, 'v-pre') != null) { - el.pre = true; - } -} - -function processRawAttrs (el) { - var l = el.attrsList.length; - if (l) { - var attrs = el.attrs = new Array(l); - for (var i = 0; i < l; i++) { - attrs[i] = { - name: el.attrsList[i].name, - value: JSON.stringify(el.attrsList[i].value) - }; - } - } else if (!el.pre) { - // non root node in pre blocks with no attributes - el.plain = true; - } -} - -function processKey (el) { - var exp = getBindingAttr(el, 'key'); - if (exp) { - if ("development" !== 'production' && el.tag === 'template') { - warn$2("<template> cannot be keyed. Place the key on real elements instead."); - } - el.key = exp; - } -} - -function processRef (el) { - var ref = getBindingAttr(el, 'ref'); - if (ref) { - el.ref = ref; - el.refInFor = checkInFor(el); - } -} - -function processFor (el) { - var exp; - if ((exp = getAndRemoveAttr(el, 'v-for'))) { - var inMatch = exp.match(forAliasRE); - if (!inMatch) { - "development" !== 'production' && warn$2( - ("Invalid v-for expression: " + exp) - ); - return - } - el.for = inMatch[2].trim(); - var alias = inMatch[1].trim(); - var iteratorMatch = alias.match(forIteratorRE); - if (iteratorMatch) { - el.alias = iteratorMatch[1].trim(); - el.iterator1 = iteratorMatch[2].trim(); - if (iteratorMatch[3]) { - el.iterator2 = iteratorMatch[3].trim(); - } - } else { - el.alias = alias; - } - } -} - -function processIf (el) { - var exp = getAndRemoveAttr(el, 'v-if'); - if (exp) { - el.if = exp; - addIfCondition(el, { - exp: exp, - block: el - }); - } else { - if (getAndRemoveAttr(el, 'v-else') != null) { - el.else = true; - } - var elseif = getAndRemoveAttr(el, 'v-else-if'); - if (elseif) { - el.elseif = elseif; - } - } -} - -function processIfConditions (el, parent) { - var prev = findPrevElement(parent.children); - if (prev && prev.if) { - addIfCondition(prev, { - exp: el.elseif, - block: el - }); - } else { - warn$2( - "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " + - "used on element <" + (el.tag) + "> without corresponding v-if." - ); - } -} - -function findPrevElement (children) { - var i = children.length; - while (i--) { - if (children[i].type === 1) { - return children[i] - } else { - if ("development" !== 'production' && children[i].text !== ' ') { - warn$2( - "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " + - "will be ignored." - ); - } - children.pop(); - } - } -} - -function addIfCondition (el, condition) { - if (!el.ifConditions) { - el.ifConditions = []; - } - el.ifConditions.push(condition); -} - -function processOnce (el) { - var once$$1 = getAndRemoveAttr(el, 'v-once'); - if (once$$1 != null) { - el.once = true; - } -} - -function processSlot (el) { - if (el.tag === 'slot') { - el.slotName = getBindingAttr(el, 'name'); - if ("development" !== 'production' && el.key) { - warn$2( - "`key` does not work on <slot> because slots are abstract outlets " + - "and can possibly expand into multiple elements. " + - "Use the key on a wrapping element instead." - ); - } - } else { - var slotTarget = getBindingAttr(el, 'slot'); - if (slotTarget) { - el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget; - } - if (el.tag === 'template') { - el.slotScope = getAndRemoveAttr(el, 'scope'); - } - } -} - -function processComponent (el) { - var binding; - if ((binding = getBindingAttr(el, 'is'))) { - el.component = binding; - } - if (getAndRemoveAttr(el, 'inline-template') != null) { - el.inlineTemplate = true; - } -} - -function processAttrs (el) { - var list = el.attrsList; - var i, l, name, rawName, value, modifiers, isProp; - for (i = 0, l = list.length; i < l; i++) { - name = rawName = list[i].name; - value = list[i].value; - if (dirRE.test(name)) { - // mark element as dynamic - el.hasBindings = true; - // modifiers - modifiers = parseModifiers(name); - if (modifiers) { - name = name.replace(modifierRE, ''); - } - if (bindRE.test(name)) { // v-bind - name = name.replace(bindRE, ''); - value = parseFilters(value); - isProp = false; - if (modifiers) { - if (modifiers.prop) { - isProp = true; - name = camelize(name); - if (name === 'innerHtml') { name = 'innerHTML'; } - } - if (modifiers.camel) { - name = camelize(name); - } - if (modifiers.sync) { - addHandler( - el, - ("update:" + (camelize(name))), - genAssignmentCode(value, "$event") - ); - } - } - if (!el.component && ( - isProp || platformMustUseProp(el.tag, el.attrsMap.type, name) - )) { - addProp(el, name, value); - } else { - addAttr(el, name, value); - } - } else if (onRE.test(name)) { // v-on - name = name.replace(onRE, ''); - addHandler(el, name, value, modifiers, false, warn$2); - } else { // normal directives - name = name.replace(dirRE, ''); - // parse arg - var argMatch = name.match(argRE); - var arg = argMatch && argMatch[1]; - if (arg) { - name = name.slice(0, -(arg.length + 1)); - } - addDirective(el, name, rawName, value, arg, modifiers); - if ("development" !== 'production' && name === 'model') { - checkForAliasModel(el, value); - } - } - } else { - // literal attribute - { - var expression = parseText(value, delimiters); - if (expression) { - warn$2( - name + "=\"" + value + "\": " + - 'Interpolation inside attributes has been removed. ' + - 'Use v-bind or the colon shorthand instead. For example, ' + - 'instead of <div id="{{ val }}">, use <div :id="val">.' - ); - } - } - addAttr(el, name, JSON.stringify(value)); - } - } -} - -function checkInFor (el) { - var parent = el; - while (parent) { - if (parent.for !== undefined) { - return true - } - parent = parent.parent; - } - return false -} - -function parseModifiers (name) { - var match = name.match(modifierRE); - if (match) { - var ret = {}; - match.forEach(function (m) { ret[m.slice(1)] = true; }); - return ret - } -} - -function makeAttrsMap (attrs) { - var map = {}; - for (var i = 0, l = attrs.length; i < l; i++) { - if ( - "development" !== 'production' && - map[attrs[i].name] && !isIE && !isEdge - ) { - warn$2('duplicate attribute: ' + attrs[i].name); - } - map[attrs[i].name] = attrs[i].value; - } - return map -} - -// for script (e.g. type="x/template") or style, do not decode content -function isTextTag (el) { - return el.tag === 'script' || el.tag === 'style' -} - -function isForbiddenTag (el) { - return ( - el.tag === 'style' || - (el.tag === 'script' && ( - !el.attrsMap.type || - el.attrsMap.type === 'text/javascript' - )) - ) -} - -var ieNSBug = /^xmlns:NS\d+/; -var ieNSPrefix = /^NS\d+:/; - -/* istanbul ignore next */ -function guardIESVGBug (attrs) { - var res = []; - for (var i = 0; i < attrs.length; i++) { - var attr = attrs[i]; - if (!ieNSBug.test(attr.name)) { - attr.name = attr.name.replace(ieNSPrefix, ''); - res.push(attr); - } - } - return res -} - -function checkForAliasModel (el, value) { - var _el = el; - while (_el) { - if (_el.for && _el.alias === value) { - warn$2( - "<" + (el.tag) + " v-model=\"" + value + "\">: " + - "You are binding v-model directly to a v-for iteration alias. " + - "This will not be able to modify the v-for source array because " + - "writing to the alias is like modifying a function local variable. " + - "Consider using an array of objects and use v-model on an object property instead." - ); - } - _el = _el.parent; - } -} - -/* */ - -var isStaticKey; -var isPlatformReservedTag; - -var genStaticKeysCached = cached(genStaticKeys$1); - -/** - * Goal of the optimizer: walk the generated template AST tree - * and detect sub-trees that are purely static, i.e. parts of - * the DOM that never needs to change. - * - * Once we detect these sub-trees, we can: - * - * 1. Hoist them into constants, so that we no longer need to - * create fresh nodes for them on each re-render; - * 2. Completely skip them in the patching process. - */ -function optimize (root, options) { - if (!root) { return } - isStaticKey = genStaticKeysCached(options.staticKeys || ''); - isPlatformReservedTag = options.isReservedTag || no; - // first pass: mark all non-static nodes. - markStatic$1(root); - // second pass: mark static roots. - markStaticRoots(root, false); -} - -function genStaticKeys$1 (keys) { - return makeMap( - 'type,tag,attrsList,attrsMap,plain,parent,children,attrs' + - (keys ? ',' + keys : '') - ) -} - -function markStatic$1 (node) { - node.static = isStatic(node); - if (node.type === 1) { - // do not make component slot content static. this avoids - // 1. components not able to mutate slot nodes - // 2. static slot content fails for hot-reloading - if ( - !isPlatformReservedTag(node.tag) && - node.tag !== 'slot' && - node.attrsMap['inline-template'] == null - ) { - return - } - for (var i = 0, l = node.children.length; i < l; i++) { - var child = node.children[i]; - markStatic$1(child); - if (!child.static) { - node.static = false; - } - } - if (node.ifConditions) { - for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) { - var block = node.ifConditions[i$1].block; - markStatic$1(block); - if (!block.static) { - node.static = false; - } - } - } - } -} - -function markStaticRoots (node, isInFor) { - if (node.type === 1) { - if (node.static || node.once) { - node.staticInFor = isInFor; - } - // For a node to qualify as a static root, it should have children that - // are not just static text. Otherwise the cost of hoisting out will - // outweigh the benefits and it's better off to just always render it fresh. - if (node.static && node.children.length && !( - node.children.length === 1 && - node.children[0].type === 3 - )) { - node.staticRoot = true; - return - } else { - node.staticRoot = false; - } - if (node.children) { - for (var i = 0, l = node.children.length; i < l; i++) { - markStaticRoots(node.children[i], isInFor || !!node.for); - } - } - if (node.ifConditions) { - for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) { - markStaticRoots(node.ifConditions[i$1].block, isInFor); - } - } - } -} - -function isStatic (node) { - if (node.type === 2) { // expression - return false - } - if (node.type === 3) { // text - return true - } - return !!(node.pre || ( - !node.hasBindings && // no dynamic bindings - !node.if && !node.for && // not v-if or v-for or v-else - !isBuiltInTag(node.tag) && // not a built-in - isPlatformReservedTag(node.tag) && // not a component - !isDirectChildOfTemplateFor(node) && - Object.keys(node).every(isStaticKey) - )) -} - -function isDirectChildOfTemplateFor (node) { - while (node.parent) { - node = node.parent; - if (node.tag !== 'template') { - return false - } - if (node.for) { - return true - } - } - return false -} - -/* */ - -var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/; -var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/; - -// keyCode aliases -var keyCodes = { - esc: 27, - tab: 9, - enter: 13, - space: 32, - up: 38, - left: 37, - right: 39, - down: 40, - 'delete': [8, 46] -}; - -// #4868: modifiers that prevent the execution of the listener -// need to explicitly return null so that we can determine whether to remove -// the listener for .once -var genGuard = function (condition) { return ("if(" + condition + ")return null;"); }; - -var modifierCode = { - stop: '$event.stopPropagation();', - prevent: '$event.preventDefault();', - self: genGuard("$event.target !== $event.currentTarget"), - ctrl: genGuard("!$event.ctrlKey"), - shift: genGuard("!$event.shiftKey"), - alt: genGuard("!$event.altKey"), - meta: genGuard("!$event.metaKey"), - left: genGuard("'button' in $event && $event.button !== 0"), - middle: genGuard("'button' in $event && $event.button !== 1"), - right: genGuard("'button' in $event && $event.button !== 2") -}; - -function genHandlers ( - events, - isNative, - warn -) { - var res = isNative ? 'nativeOn:{' : 'on:{'; - for (var name in events) { - var handler = events[name]; - // #5330: warn click.right, since right clicks do not actually fire click events. - if ("development" !== 'production' && - name === 'click' && - handler && handler.modifiers && handler.modifiers.right - ) { - warn( - "Use \"contextmenu\" instead of \"click.right\" since right clicks " + - "do not actually fire \"click\" events." - ); - } - res += "\"" + name + "\":" + (genHandler(name, handler)) + ","; - } - return res.slice(0, -1) + '}' -} - -function genHandler ( - name, - handler -) { - if (!handler) { - return 'function(){}' - } - - if (Array.isArray(handler)) { - return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]") - } - - var isMethodPath = simplePathRE.test(handler.value); - var isFunctionExpression = fnExpRE.test(handler.value); - - if (!handler.modifiers) { - return isMethodPath || isFunctionExpression - ? handler.value - : ("function($event){" + (handler.value) + "}") // inline statement - } else { - var code = ''; - var genModifierCode = ''; - var keys = []; - for (var key in handler.modifiers) { - if (modifierCode[key]) { - genModifierCode += modifierCode[key]; - // left/right - if (keyCodes[key]) { - keys.push(key); - } - } else { - keys.push(key); - } - } - if (keys.length) { - code += genKeyFilter(keys); - } - // Make sure modifiers like prevent and stop get executed after key filtering - if (genModifierCode) { - code += genModifierCode; - } - var handlerCode = isMethodPath - ? handler.value + '($event)' - : isFunctionExpression - ? ("(" + (handler.value) + ")($event)") - : handler.value; - return ("function($event){" + code + handlerCode + "}") - } -} - -function genKeyFilter (keys) { - return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;") -} - -function genFilterCode (key) { - var keyVal = parseInt(key, 10); - if (keyVal) { - return ("$event.keyCode!==" + keyVal) - } - var alias = keyCodes[key]; - return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")") -} - -/* */ - -function on (el, dir) { - if ("development" !== 'production' && dir.modifiers) { - warn("v-on without argument does not support modifiers."); - } - el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); }; -} - -/* */ - -function bind$1 (el, dir) { - el.wrapData = function (code) { - return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")") - }; -} - -/* */ - -var baseDirectives = { - on: on, - bind: bind$1, - cloak: noop -}; - -/* */ - -var CodegenState = function CodegenState (options) { - this.options = options; - this.warn = options.warn || baseWarn; - this.transforms = pluckModuleFunction(options.modules, 'transformCode'); - this.dataGenFns = pluckModuleFunction(options.modules, 'genData'); - this.directives = extend(extend({}, baseDirectives), options.directives); - var isReservedTag = options.isReservedTag || no; - this.maybeComponent = function (el) { return !isReservedTag(el.tag); }; - this.onceId = 0; - this.staticRenderFns = []; -}; - - - -function generate ( - ast, - options -) { - var state = new CodegenState(options); - var code = ast ? genElement(ast, state) : '_c("div")'; - return { - render: ("with(this){return " + code + "}"), - staticRenderFns: state.staticRenderFns - } -} - -function genElement (el, state) { - if (el.staticRoot && !el.staticProcessed) { - return genStatic(el, state) - } else if (el.once && !el.onceProcessed) { - return genOnce(el, state) - } else if (el.for && !el.forProcessed) { - return genFor(el, state) - } else if (el.if && !el.ifProcessed) { - return genIf(el, state) - } else if (el.tag === 'template' && !el.slotTarget) { - return genChildren(el, state) || 'void 0' - } else if (el.tag === 'slot') { - return genSlot(el, state) - } else { - // component or element - var code; - if (el.component) { - code = genComponent(el.component, el, state); - } else { - var data = el.plain ? undefined : genData$2(el, state); - - var children = el.inlineTemplate ? null : genChildren(el, state, true); - code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")"; - } - // module transforms - for (var i = 0; i < state.transforms.length; i++) { - code = state.transforms[i](el, code); - } - return code - } -} - -// hoist static sub-trees out -function genStatic (el, state) { - el.staticProcessed = true; - state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}")); - return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")") -} - -// v-once -function genOnce (el, state) { - el.onceProcessed = true; - if (el.if && !el.ifProcessed) { - return genIf(el, state) - } else if (el.staticInFor) { - var key = ''; - var parent = el.parent; - while (parent) { - if (parent.for) { - key = parent.key; - break - } - parent = parent.parent; - } - if (!key) { - "development" !== 'production' && state.warn( - "v-once can only be used inside v-for that is keyed. " - ); - return genElement(el, state) - } - return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")") - } else { - return genStatic(el, state) - } -} - -function genIf ( - el, - state, - altGen, - altEmpty -) { - el.ifProcessed = true; // avoid recursion - return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty) -} - -function genIfConditions ( - conditions, - state, - altGen, - altEmpty -) { - if (!conditions.length) { - return altEmpty || '_e()' - } - - var condition = conditions.shift(); - if (condition.exp) { - return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty))) - } else { - return ("" + (genTernaryExp(condition.block))) - } - - // v-if with v-once should generate code like (a)?_m(0):_m(1) - function genTernaryExp (el) { - return altGen - ? altGen(el, state) - : el.once - ? genOnce(el, state) - : genElement(el, state) - } -} - -function genFor ( - el, - state, - altGen, - altHelper -) { - var exp = el.for; - var alias = el.alias; - var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : ''; - var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : ''; - - if ("development" !== 'production' && - state.maybeComponent(el) && - el.tag !== 'slot' && - el.tag !== 'template' && - !el.key - ) { - state.warn( - "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " + - "v-for should have explicit keys. " + - "See https://vuejs.org/guide/list.html#key for more info.", - true /* tip */ - ); - } - - el.forProcessed = true; // avoid recursion - return (altHelper || '_l') + "((" + exp + ")," + - "function(" + alias + iterator1 + iterator2 + "){" + - "return " + ((altGen || genElement)(el, state)) + - '})' -} - -function genData$2 (el, state) { - var data = '{'; - - // directives first. - // directives may mutate the el's other properties before they are generated. - var dirs = genDirectives(el, state); - if (dirs) { data += dirs + ','; } - - // key - if (el.key) { - data += "key:" + (el.key) + ","; - } - // ref - if (el.ref) { - data += "ref:" + (el.ref) + ","; - } - if (el.refInFor) { - data += "refInFor:true,"; - } - // pre - if (el.pre) { - data += "pre:true,"; - } - // record original tag name for components using "is" attribute - if (el.component) { - data += "tag:\"" + (el.tag) + "\","; - } - // module data generation functions - for (var i = 0; i < state.dataGenFns.length; i++) { - data += state.dataGenFns[i](el); - } - // attributes - if (el.attrs) { - data += "attrs:{" + (genProps(el.attrs)) + "},"; - } - // DOM props - if (el.props) { - data += "domProps:{" + (genProps(el.props)) + "},"; - } - // event handlers - if (el.events) { - data += (genHandlers(el.events, false, state.warn)) + ","; - } - if (el.nativeEvents) { - data += (genHandlers(el.nativeEvents, true, state.warn)) + ","; - } - // slot target - if (el.slotTarget) { - data += "slot:" + (el.slotTarget) + ","; - } - // scoped slots - if (el.scopedSlots) { - data += (genScopedSlots(el.scopedSlots, state)) + ","; - } - // component v-model - if (el.model) { - data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},"; - } - // inline-template - if (el.inlineTemplate) { - var inlineTemplate = genInlineTemplate(el, state); - if (inlineTemplate) { - data += inlineTemplate + ","; - } - } - data = data.replace(/,$/, '') + '}'; - // v-bind data wrap - if (el.wrapData) { - data = el.wrapData(data); - } - // v-on data wrap - if (el.wrapListeners) { - data = el.wrapListeners(data); - } - return data -} - -function genDirectives (el, state) { - var dirs = el.directives; - if (!dirs) { return } - var res = 'directives:['; - var hasRuntime = false; - var i, l, dir, needRuntime; - for (i = 0, l = dirs.length; i < l; i++) { - dir = dirs[i]; - needRuntime = true; - var gen = state.directives[dir.name]; - if (gen) { - // compile-time directive that manipulates AST. - // returns true if it also needs a runtime counterpart. - needRuntime = !!gen(el, dir, state.warn); - } - if (needRuntime) { - hasRuntime = true; - res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},"; - } - } - if (hasRuntime) { - return res.slice(0, -1) + ']' - } -} - -function genInlineTemplate (el, state) { - var ast = el.children[0]; - if ("development" !== 'production' && ( - el.children.length > 1 || ast.type !== 1 - )) { - state.warn('Inline-template components must have exactly one child element.'); - } - if (ast.type === 1) { - var inlineRenderFns = generate(ast, state.options); - return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}") - } -} - -function genScopedSlots ( - slots, - state -) { - return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) { - return genScopedSlot(key, slots[key], state) - }).join(',')) + "])") -} - -function genScopedSlot ( - key, - el, - state -) { - if (el.for && !el.forProcessed) { - return genForScopedSlot(key, el, state) - } - return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" + - "return " + (el.tag === 'template' - ? genChildren(el, state) || 'void 0' - : genElement(el, state)) + "}}" -} - -function genForScopedSlot ( - key, - el, - state -) { - var exp = el.for; - var alias = el.alias; - var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : ''; - var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : ''; - el.forProcessed = true; // avoid recursion - return "_l((" + exp + ")," + - "function(" + alias + iterator1 + iterator2 + "){" + - "return " + (genScopedSlot(key, el, state)) + - '})' -} - -function genChildren ( - el, - state, - checkSkip, - altGenElement, - altGenNode -) { - var children = el.children; - if (children.length) { - var el$1 = children[0]; - // optimize single v-for - if (children.length === 1 && - el$1.for && - el$1.tag !== 'template' && - el$1.tag !== 'slot' - ) { - return (altGenElement || genElement)(el$1, state) - } - var normalizationType = checkSkip - ? getNormalizationType(children, state.maybeComponent) - : 0; - var gen = altGenNode || genNode; - return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : '')) - } -} - -// determine the normalization needed for the children array. -// 0: no normalization needed -// 1: simple normalization needed (possible 1-level deep nested array) -// 2: full normalization needed -function getNormalizationType ( - children, - maybeComponent -) { - var res = 0; - for (var i = 0; i < children.length; i++) { - var el = children[i]; - if (el.type !== 1) { - continue - } - if (needsNormalization(el) || - (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) { - res = 2; - break - } - if (maybeComponent(el) || - (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) { - res = 1; - } - } - return res -} - -function needsNormalization (el) { - return el.for !== undefined || el.tag === 'template' || el.tag === 'slot' -} - -function genNode (node, state) { - if (node.type === 1) { - return genElement(node, state) - } if (node.type === 3 && node.isComment) { - return genComment(node) - } else { - return genText(node) - } -} - -function genText (text) { - return ("_v(" + (text.type === 2 - ? text.expression // no need for () because already wrapped in _s() - : transformSpecialNewlines(JSON.stringify(text.text))) + ")") -} - -function genComment (comment) { - return ("_e('" + (comment.text) + "')") -} - -function genSlot (el, state) { - var slotName = el.slotName || '"default"'; - var children = genChildren(el, state); - var res = "_t(" + slotName + (children ? ("," + children) : ''); - var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}"); - var bind$$1 = el.attrsMap['v-bind']; - if ((attrs || bind$$1) && !children) { - res += ",null"; - } - if (attrs) { - res += "," + attrs; - } - if (bind$$1) { - res += (attrs ? '' : ',null') + "," + bind$$1; - } - return res + ')' -} - -// componentName is el.component, take it as argument to shun flow's pessimistic refinement -function genComponent ( - componentName, - el, - state -) { - var children = el.inlineTemplate ? null : genChildren(el, state, true); - return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")") -} - -function genProps (props) { - var res = ''; - for (var i = 0; i < props.length; i++) { - var prop = props[i]; - res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ","; - } - return res.slice(0, -1) -} - -// #3895, #4268 -function transformSpecialNewlines (text) { - return text - .replace(/\u2028/g, '\\u2028') - .replace(/\u2029/g, '\\u2029') -} - -/* */ - -// these keywords should not appear inside expressions, but operators like -// typeof, instanceof and in are allowed -var prohibitedKeywordRE = new RegExp('\\b' + ( - 'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' + - 'super,throw,while,yield,delete,export,import,return,switch,default,' + - 'extends,finally,continue,debugger,function,arguments' -).split(',').join('\\b|\\b') + '\\b'); - -// these unary operators should not be used as property/method names -var unaryOperatorsRE = new RegExp('\\b' + ( - 'delete,typeof,void' -).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)'); - -// check valid identifier for v-for -var identRE = /[A-Za-z_$][\w$]*/; - -// strip strings in expressions -var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g; - -// detect problematic expressions in a template -function detectErrors (ast) { - var errors = []; - if (ast) { - checkNode(ast, errors); - } - return errors -} - -function checkNode (node, errors) { - if (node.type === 1) { - for (var name in node.attrsMap) { - if (dirRE.test(name)) { - var value = node.attrsMap[name]; - if (value) { - if (name === 'v-for') { - checkFor(node, ("v-for=\"" + value + "\""), errors); - } else if (onRE.test(name)) { - checkEvent(value, (name + "=\"" + value + "\""), errors); - } else { - checkExpression(value, (name + "=\"" + value + "\""), errors); - } - } - } - } - if (node.children) { - for (var i = 0; i < node.children.length; i++) { - checkNode(node.children[i], errors); - } - } - } else if (node.type === 2) { - checkExpression(node.expression, node.text, errors); - } -} - -function checkEvent (exp, text, errors) { - var stipped = exp.replace(stripStringRE, ''); - var keywordMatch = stipped.match(unaryOperatorsRE); - if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') { - errors.push( - "avoid using JavaScript unary operator as property name: " + - "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()) - ); - } - checkExpression(exp, text, errors); -} - -function checkFor (node, text, errors) { - checkExpression(node.for || '', text, errors); - checkIdentifier(node.alias, 'v-for alias', text, errors); - checkIdentifier(node.iterator1, 'v-for iterator', text, errors); - checkIdentifier(node.iterator2, 'v-for iterator', text, errors); -} - -function checkIdentifier (ident, type, text, errors) { - if (typeof ident === 'string' && !identRE.test(ident)) { - errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim()))); - } -} - -function checkExpression (exp, text, errors) { - try { - new Function(("return " + exp)); - } catch (e) { - var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE); - if (keywordMatch) { - errors.push( - "avoid using JavaScript keyword as property name: " + - "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()) - ); - } else { - errors.push(("invalid expression: " + (text.trim()))); - } - } -} - -/* */ - -function createFunction (code, errors) { - try { - return new Function(code) - } catch (err) { - errors.push({ err: err, code: code }); - return noop - } -} - -function createCompileToFunctionFn (compile) { - var cache = Object.create(null); - - return function compileToFunctions ( - template, - options, - vm - ) { - options = options || {}; - - /* istanbul ignore if */ - { - // detect possible CSP restriction - try { - new Function('return 1'); - } catch (e) { - if (e.toString().match(/unsafe-eval|CSP/)) { - warn( - 'It seems you are using the standalone build of Vue.js in an ' + - 'environment with Content Security Policy that prohibits unsafe-eval. ' + - 'The template compiler cannot work in this environment. Consider ' + - 'relaxing the policy to allow unsafe-eval or pre-compiling your ' + - 'templates into render functions.' - ); - } - } - } - - // check cache - var key = options.delimiters - ? String(options.delimiters) + template - : template; - if (cache[key]) { - return cache[key] - } - - // compile - var compiled = compile(template, options); - - // check compilation errors/tips - { - if (compiled.errors && compiled.errors.length) { - warn( - "Error compiling template:\n\n" + template + "\n\n" + - compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n', - vm - ); - } - if (compiled.tips && compiled.tips.length) { - compiled.tips.forEach(function (msg) { return tip(msg, vm); }); - } - } - - // turn code into functions - var res = {}; - var fnGenErrors = []; - res.render = createFunction(compiled.render, fnGenErrors); - res.staticRenderFns = compiled.staticRenderFns.map(function (code) { - return createFunction(code, fnGenErrors) - }); - - // check function generation errors. - // this should only happen if there is a bug in the compiler itself. - // mostly for codegen development use - /* istanbul ignore if */ - { - if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) { - warn( - "Failed to generate render function:\n\n" + - fnGenErrors.map(function (ref) { - var err = ref.err; - var code = ref.code; - - return ((err.toString()) + " in\n\n" + code + "\n"); - }).join('\n'), - vm - ); - } - } - - return (cache[key] = res) - } -} - -/* */ - -function createCompilerCreator (baseCompile) { - return function createCompiler (baseOptions) { - function compile ( - template, - options - ) { - var finalOptions = Object.create(baseOptions); - var errors = []; - var tips = []; - finalOptions.warn = function (msg, tip) { - (tip ? tips : errors).push(msg); - }; - - if (options) { - // merge custom modules - if (options.modules) { - finalOptions.modules = - (baseOptions.modules || []).concat(options.modules); - } - // merge custom directives - if (options.directives) { - finalOptions.directives = extend( - Object.create(baseOptions.directives), - options.directives - ); - } - // copy other options - for (var key in options) { - if (key !== 'modules' && key !== 'directives') { - finalOptions[key] = options[key]; - } - } - } - - var compiled = baseCompile(template, finalOptions); - { - errors.push.apply(errors, detectErrors(compiled.ast)); - } - compiled.errors = errors; - compiled.tips = tips; - return compiled - } - - return { - compile: compile, - compileToFunctions: createCompileToFunctionFn(compile) - } - } -} - -/* */ - -// `createCompilerCreator` allows creating compilers that use alternative -// parser/optimizer/codegen, e.g the SSR optimizing compiler. -// Here we just export a default compiler using the default parts. -var createCompiler = createCompilerCreator(function baseCompile ( - template, - options -) { - var ast = parse(template.trim(), options); - optimize(ast, options); - var code = generate(ast, options); - return { - ast: ast, - render: code.render, - staticRenderFns: code.staticRenderFns - } -}); - -/* */ - -var ref$1 = createCompiler(baseOptions); -var compileToFunctions = ref$1.compileToFunctions; - -/* */ - -var idToTemplate = cached(function (id) { - var el = query(id); - return el && el.innerHTML -}); - -var mount = Vue$3.prototype.$mount; -Vue$3.prototype.$mount = function ( - el, - hydrating -) { - el = el && query(el); - - /* istanbul ignore if */ - if (el === document.body || el === document.documentElement) { - "development" !== 'production' && warn( - "Do not mount Vue to <html> or <body> - mount to normal elements instead." - ); - return this - } - - var options = this.$options; - // resolve template/el and convert to render function - if (!options.render) { - var template = options.template; - if (template) { - if (typeof template === 'string') { - if (template.charAt(0) === '#') { - template = idToTemplate(template); - /* istanbul ignore if */ - if ("development" !== 'production' && !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 ("development" !== 'production' && config.performance && mark) { - mark('compile'); - } - - var ref = compileToFunctions(template, { - shouldDecodeNewlines: shouldDecodeNewlines, - delimiters: options.delimiters, - comments: options.comments - }, this); - var render = ref.render; - var staticRenderFns = ref.staticRenderFns; - options.render = render; - options.staticRenderFns = staticRenderFns; - - /* istanbul ignore if */ - if ("development" !== 'production' && config.performance && mark) { - mark('compile end'); - measure(((this._name) + " compile"), 'compile', 'compile end'); - } - } - } - return mount.call(this, el, hydrating) -}; - -/** - * Get outerHTML of elements, taking care - * of SVG elements in IE as well. - */ -function getOuterHTML (el) { - if (el.outerHTML) { - return el.outerHTML - } else { - var container = document.createElement('div'); - container.appendChild(el.cloneNode(true)); - return container.innerHTML - } -} - -Vue$3.compile = compileToFunctions; - -return Vue$3; - -}))); +/*! + * Vue.js v2.4.0 + * (c) 2014-2017 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.Vue = factory()); +}(this, (function () { 'use strict'; + +/* */ + +// these helpers produces better vm code in JS engines due to their +// explicitness and function inlining +function isUndef (v) { + return v === undefined || v === null +} + +function isDef (v) { + return v !== undefined && v !== null +} + +function isTrue (v) { + return v === true +} + +function isFalse (v) { + return v === false +} + +/** + * Check if value is primitive + */ +function isPrimitive (value) { + return typeof value === 'string' || typeof value === 'number' +} + +/** + * 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' +} + +var _toString = Object.prototype.toString; + +/** + * 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(val); + return n >= 0 && Math.floor(n) === n && isFinite(val) +} + +/** + * Convert a value to a string that is actually rendered. + */ +function toString (val) { + return val == null + ? '' + : typeof val === 'object' + ? JSON.stringify(val, null, 2) + : String(val) +} + +/** + * Convert a input value to a number for persistence. + * If the conversion fails, return original string. + */ +function toNumber (val) { + var n = parseFloat(val); + return isNaN(n) ? val : n +} + +/** + * Make a map and return a function for checking if a key + * is in that map. + */ +function makeMap ( + str, + expectsLowerCase +) { + var map = Object.create(null); + var list = str.split(','); + for (var i = 0; i < list.length; i++) { + map[list[i]] = true; + } + return expectsLowerCase + ? function (val) { return map[val.toLowerCase()]; } + : function (val) { return map[val]; } +} + +/** + * Check if a tag is a built-in tag. + */ +var isBuiltInTag = makeMap('slot,component', true); + +/** + * Check if a attribute is a reserved attribute. + */ +var isReservedAttribute = makeMap('key,ref,slot,is'); + +/** + * Remove an item from an array + */ +function remove (arr, item) { + if (arr.length) { + var index = arr.indexOf(item); + if (index > -1) { + return arr.splice(index, 1) + } + } +} + +/** + * Check whether the object has the property. + */ +var hasOwnProperty = Object.prototype.hasOwnProperty; +function hasOwn (obj, key) { + return hasOwnProperty.call(obj, key) +} + +/** + * Create a cached version of a pure function. + */ +function cached (fn) { + var cache = Object.create(null); + return (function cachedFn (str) { + var hit = cache[str]; + return hit || (cache[str] = fn(str)) + }) +} + +/** + * Camelize a hyphen-delimited string. + */ +var camelizeRE = /-(\w)/g; +var camelize = cached(function (str) { + return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; }) +}); + +/** + * Capitalize a string. + */ +var capitalize = cached(function (str) { + return str.charAt(0).toUpperCase() + str.slice(1) +}); + +/** + * Hyphenate a camelCase string. + */ +var hyphenateRE = /([^-])([A-Z])/g; +var hyphenate = cached(function (str) { + return str + .replace(hyphenateRE, '$1-$2') + .replace(hyphenateRE, '$1-$2') + .toLowerCase() +}); + +/** + * Simple bind, faster than native + */ +function bind (fn, ctx) { + function boundFn (a) { + var l = arguments.length; + return l + ? l > 1 + ? fn.apply(ctx, arguments) + : fn.call(ctx, a) + : fn.call(ctx) + } + // record original fn length + boundFn._length = fn.length; + return boundFn +} + +/** + * Convert an Array-like object to a real Array. + */ +function toArray (list, start) { + start = start || 0; + var i = list.length - start; + var ret = new Array(i); + while (i--) { + ret[i] = list[i + start]; + } + return ret +} + +/** + * Mix properties into target object. + */ +function extend (to, _from) { + for (var key in _from) { + to[key] = _from[key]; + } + return to +} + +/** + * Merge an Array of Objects into a single Object. + */ +function toObject (arr) { + var res = {}; + for (var i = 0; i < arr.length; i++) { + if (arr[i]) { + extend(res, arr[i]); + } + } + return res +} + +/** + * Perform no operation. + * Stubbing args to make Flow happy without leaving useless transpiled code + * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/) + */ +function noop (a, b, c) {} + +/** + * Always return false. + */ +var no = function (a, b, c) { return false; }; + +/** + * Return same value + */ +var identity = function (_) { return _; }; + +/** + * Generate a static keys string from compiler modules. + */ +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) { + var isObjectA = isObject(a); + var isObjectB = isObject(b); + if (isObjectA && isObjectB) { + try { + return JSON.stringify(a) === JSON.stringify(b) + } catch (e) { + // possible circular reference + return a === b + } + } else if (!isObjectA && !isObjectB) { + return String(a) === String(b) + } else { + return false + } +} + +function looseIndexOf (arr, val) { + for (var i = 0; i < arr.length; i++) { + if (looseEqual(arr[i], val)) { return i } + } + return -1 +} + +/** + * Ensure a function is called only once. + */ +function once (fn) { + var called = false; + return function () { + if (!called) { + called = true; + fn.apply(this, arguments); + } + } +} + +var SSR_ATTR = 'data-server-rendered'; + +var ASSET_TYPES = [ + 'component', + 'directive', + 'filter' +]; + +var LIFECYCLE_HOOKS = [ + 'beforeCreate', + 'created', + 'beforeMount', + 'mounted', + 'beforeUpdate', + 'updated', + 'beforeDestroy', + 'destroyed', + 'activated', + 'deactivated' +]; + +/* */ + +var config = ({ + /** + * Option merge strategies (used in core/util/options) + */ + 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 + */ + keyCodes: Object.create(null), + + /** + * Check if a tag is reserved so that it cannot be registered as a + * component. This is platform-dependent and may be overwritten. + */ + isReservedTag: no, + + /** + * Check if an attribute is reserved so that it cannot be used as a component + * prop. This is platform-dependent and may be overwritten. + */ + isReservedAttr: no, + + /** + * Check if a tag is an unknown element. + * Platform-dependent. + */ + isUnknownElement: no, + + /** + * Get the namespace of an element + */ + getTagNamespace: noop, + + /** + * Parse the real tag name for the specific platform. + */ + parsePlatformTagName: identity, + + /** + * Check if an attribute must be bound using property, e.g. value + * Platform-dependent. + */ + mustUseProp: no, + + /** + * Exposed for legacy reasons + */ + _lifecycleHooks: LIFECYCLE_HOOKS +}); + +/* */ + +var emptyObject = Object.freeze({}); + +/** + * Check if a string starts with $ or _ + */ +function isReserved (str) { + var c = (str + '').charCodeAt(0); + return c === 0x24 || c === 0x5F +} + +/** + * Define a property. + */ +function def (obj, key, val, enumerable) { + Object.defineProperty(obj, key, { + value: val, + enumerable: !!enumerable, + writable: true, + configurable: true + }); +} + +/** + * Parse simple path. + */ +var bailRE = /[^\w.$]/; +function parsePath (path) { + if (bailRE.test(path)) { + return + } + var segments = path.split('.'); + return function (obj) { + for (var i = 0; i < segments.length; i++) { + if (!obj) { return } + obj = obj[segments[i]]; + } + return obj + } +} + +/* */ + +var warn = noop; +var tip = noop; +var formatComponentName = (null); // work around flow check + +{ + var hasConsole = typeof console !== 'undefined'; + var classifyRE = /(?:^|[-_])(\w)/g; + var classify = function (str) { return str + .replace(classifyRE, function (c) { return c.toUpperCase(); }) + .replace(/[-_]/g, ''); }; + + warn = function (msg, vm) { + var trace = vm ? generateComponentTrace(vm) : ''; + + if (config.warnHandler) { + config.warnHandler.call(null, msg, vm, trace); + } else if (hasConsole && (!config.silent)) { + console.error(("[Vue warn]: " + msg + trace)); + } + }; + + tip = function (msg, vm) { + if (hasConsole && (!config.silent)) { + console.warn("[Vue tip]: " + msg + ( + vm ? generateComponentTrace(vm) : '' + )); + } + }; + + formatComponentName = function (vm, includeFile) { + if (vm.$root === vm) { + return '<Root>' + } + var name = typeof vm === 'string' + ? vm + : typeof vm === 'function' && vm.options + ? vm.options.name + : vm._isVue + ? vm.$options.name || vm.$options._componentTag + : vm.name; + + var file = vm._isVue && vm.$options.__file; + if (!name && file) { + var match = file.match(/([^/\\]+)\.vue$/); + 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 + }; + + var 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)) + ")") + } + }; +} + +/* */ + +function handleError (err, vm, info) { + if (config.errorHandler) { + config.errorHandler.call(null, err, vm, info); + } else { + { + warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm); + } + /* istanbul ignore else */ + if (inBrowser && typeof console !== 'undefined') { + console.error(err); + } else { + throw err + } + } +} + +/* */ +/* globals MutationObserver */ + +// can we use __proto__? +var hasProto = '__proto__' in {}; + +// Browser environment sniffing +var inBrowser = typeof window !== 'undefined'; +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; +var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA); +var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge; + +// Firefix 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 && typeof global !== 'undefined') { + // detect presence of vue-server-renderer and avoid + // Webpack shimming the process + _isServer = global['process'].env.VUE_ENV === 'server'; + } else { + _isServer = false; + } + } + return _isServer +}; + +// detect devtools +var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__; + +/* istanbul ignore next */ +function isNative (Ctor) { + return typeof Ctor === 'function' && /native code/.test(Ctor.toString()) +} + +var hasSymbol = + typeof Symbol !== 'undefined' && isNative(Symbol) && + typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys); + +/** + * Defer a task to execute it asynchronously. + */ +var nextTick = (function () { + var callbacks = []; + var pending = false; + var timerFunc; + + function nextTickHandler () { + pending = false; + var copies = callbacks.slice(0); + callbacks.length = 0; + for (var i = 0; i < copies.length; i++) { + copies[i](); + } + } + + // 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 if */ + if (typeof Promise !== 'undefined' && isNative(Promise)) { + var p = Promise.resolve(); + var logError = function (err) { console.error(err); }; + timerFunc = function () { + p.then(nextTickHandler).catch(logError); + // in problematic UIWebViews, Promise.then doesn't completely break, but + // it can get stuck in a weird state where callbacks are pushed into the + // microtask queue but the queue isn't being flushed, until the browser + // needs to do some other work, e.g. handle a timer. Therefore we can + // "force" the microtask queue to be flushed by adding an empty timer. + if (isIOS) { setTimeout(noop); } + }; + } else if (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 IE11, iOS7, Android 4.4 + var counter = 1; + var observer = new MutationObserver(nextTickHandler); + var textNode = document.createTextNode(String(counter)); + observer.observe(textNode, { + characterData: true + }); + timerFunc = function () { + counter = (counter + 1) % 2; + textNode.data = String(counter); + }; + } else { + // fallback to setTimeout + /* istanbul ignore next */ + timerFunc = function () { + setTimeout(nextTickHandler, 0); + }; + } + + return function queueNextTick (cb, ctx) { + var _resolve; + callbacks.push(function () { + if (cb) { + try { + cb.call(ctx); + } catch (e) { + handleError(e, ctx, 'nextTick'); + } + } else if (_resolve) { + _resolve(ctx); + } + }); + if (!pending) { + pending = true; + timerFunc(); + } + if (!cb && typeof Promise !== 'undefined') { + return new Promise(function (resolve, reject) { + _resolve = resolve; + }) + } + } +})(); + +var _Set; +/* istanbul ignore if */ +if (typeof Set !== 'undefined' && isNative(Set)) { + // use native Set when available. + _Set = Set; +} else { + // a non-standard Set polyfill that only works with primitive keys. + _Set = (function () { + function Set () { + this.set = Object.create(null); + } + Set.prototype.has = function has (key) { + return this.set[key] === true + }; + Set.prototype.add = function add (key) { + this.set[key] = true; + }; + Set.prototype.clear = function clear () { + this.set = Object.create(null); + }; + + return Set; + }()); +} + +/* */ + + +var uid = 0; + +/** + * A dep is an observable that can have multiple + * directives subscribing to it. + */ +var Dep = function Dep () { + this.id = uid++; + this.subs = []; +}; + +Dep.prototype.addSub = function addSub (sub) { + this.subs.push(sub); +}; + +Dep.prototype.removeSub = function removeSub (sub) { + remove(this.subs, sub); +}; + +Dep.prototype.depend = function depend () { + if (Dep.target) { + Dep.target.addDep(this); + } +}; + +Dep.prototype.notify = function notify () { + // stabilize the subscriber list first + var subs = this.subs.slice(); + for (var i = 0, l = subs.length; i < l; i++) { + subs[i].update(); + } +}; + +// the current target watcher being evaluated. +// this is globally unique because there could be only one +// watcher being evaluated at any time. +Dep.target = null; +var targetStack = []; + +function pushTarget (_target) { + if (Dep.target) { targetStack.push(Dep.target); } + Dep.target = _target; +} + +function popTarget () { + Dep.target = targetStack.pop(); +} + +/* + * not type checking this file because flow doesn't play well with + * dynamically accessing methods on Array prototype + */ + +var arrayProto = Array.prototype; +var arrayMethods = Object.create(arrayProto);[ + 'push', + 'pop', + 'shift', + 'unshift', + 'splice', + 'sort', + 'reverse' +] +.forEach(function (method) { + // cache original method + var original = arrayProto[method]; + def(arrayMethods, method, function mutator () { + var args = [], len = arguments.length; + while ( len-- ) args[ len ] = arguments[ len ]; + + var result = original.apply(this, args); + var ob = this.__ob__; + var inserted; + switch (method) { + case 'push': + case 'unshift': + inserted = args; + break + case 'splice': + inserted = args.slice(2); + break + } + if (inserted) { ob.observeArray(inserted); } + // notify change + ob.dep.notify(); + return result + }); +}); + +/* */ + +var arrayKeys = Object.getOwnPropertyNames(arrayMethods); + +/** + * By default, when a reactive property is set, the new value is + * also converted to become reactive. However when passing down props, + * we don't want to force conversion because the value may be a nested value + * under a frozen data structure. Converting it would defeat the optimization. + */ +var observerState = { + shouldConvert: true +}; + +/** + * Observer class that are attached to each observed + * object. Once attached, the observer converts target + * object's property keys into getter/setters that + * collect dependencies and dispatches updates. + */ +var Observer = function Observer (value) { + this.value = value; + this.dep = new Dep(); + this.vmCount = 0; + def(value, '__ob__', this); + if (Array.isArray(value)) { + var augment = hasProto + ? protoAugment + : copyAugment; + augment(value, arrayMethods, arrayKeys); + this.observeArray(value); + } else { + this.walk(value); + } +}; + +/** + * Walk through each property and convert them into + * getter/setters. This method should only be called when + * value type is Object. + */ +Observer.prototype.walk = function walk (obj) { + var keys = Object.keys(obj); + for (var i = 0; i < keys.length; i++) { + defineReactive$$1(obj, keys[i], obj[keys[i]]); + } +}; + +/** + * Observe a list of Array items. + */ +Observer.prototype.observeArray = function observeArray (items) { + for (var i = 0, l = items.length; i < l; i++) { + observe(items[i]); + } +}; + +// helpers + +/** + * Augment an target Object or Array by intercepting + * the prototype chain using __proto__ + */ +function protoAugment (target, src, keys) { + /* eslint-disable no-proto */ + target.__proto__ = src; + /* eslint-enable no-proto */ +} + +/** + * Augment an target Object or Array by defining + * hidden properties. + */ +/* istanbul ignore next */ +function copyAugment (target, src, keys) { + for (var i = 0, l = keys.length; i < l; i++) { + var key = keys[i]; + def(target, key, src[key]); + } +} + +/** + * Attempt to create an observer instance for a value, + * returns the new observer if successfully observed, + * or the existing observer if the value already has one. + */ +function observe (value, asRootData) { + if (!isObject(value)) { + return + } + var ob; + if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) { + ob = value.__ob__; + } else if ( + observerState.shouldConvert && + !isServerRendering() && + (Array.isArray(value) || isPlainObject(value)) && + Object.isExtensible(value) && + !value._isVue + ) { + ob = new Observer(value); + } + if (asRootData && ob) { + ob.vmCount++; + } + return ob +} + +/** + * Define a reactive property on an Object. + */ +function defineReactive$$1 ( + obj, + key, + val, + customSetter, + shallow +) { + var dep = new Dep(); + + var property = Object.getOwnPropertyDescriptor(obj, key); + if (property && property.configurable === false) { + return + } + + // cater for pre-defined getter/setters + var getter = property && property.get; + var setter = property && property.set; + + var childOb = !shallow && observe(val); + Object.defineProperty(obj, key, { + enumerable: true, + configurable: true, + get: function reactiveGetter () { + var value = getter ? getter.call(obj) : val; + if (Dep.target) { + dep.depend(); + if (childOb) { + childOb.dep.depend(); + } + if (Array.isArray(value)) { + dependArray(value); + } + } + return value + }, + set: function reactiveSetter (newVal) { + var value = getter ? getter.call(obj) : val; + /* eslint-disable no-self-compare */ + if (newVal === value || (newVal !== newVal && value !== value)) { + return + } + /* eslint-enable no-self-compare */ + if ("development" !== 'production' && customSetter) { + customSetter(); + } + if (setter) { + setter.call(obj, newVal); + } else { + val = newVal; + } + childOb = !shallow && observe(newVal); + dep.notify(); + } + }); +} + +/** + * Set a property on an object. Adds the new property and + * triggers change notification if the property doesn't + * already exist. + */ +function set (target, key, val) { + if (Array.isArray(target) && isValidArrayIndex(key)) { + target.length = Math.max(target.length, key); + target.splice(key, 1, val); + return val + } + if (hasOwn(target, key)) { + target[key] = val; + return val + } + var ob = (target).__ob__; + if (target._isVue || (ob && ob.vmCount)) { + "development" !== 'production' && warn( + 'Avoid adding reactive properties to a Vue instance or its root $data ' + + 'at runtime - declare it upfront in the data option.' + ); + return val + } + if (!ob) { + target[key] = val; + return val + } + defineReactive$$1(ob.value, key, val); + ob.dep.notify(); + return val +} + +/** + * Delete a property and trigger change if necessary. + */ +function del (target, key) { + if (Array.isArray(target) && isValidArrayIndex(key)) { + target.splice(key, 1); + return + } + var ob = (target).__ob__; + if (target._isVue || (ob && ob.vmCount)) { + "development" !== 'production' && warn( + 'Avoid deleting properties on a Vue instance or its root $data ' + + '- just set it to null.' + ); + return + } + if (!hasOwn(target, key)) { + return + } + delete target[key]; + if (!ob) { + return + } + ob.dep.notify(); +} + +/** + * Collect dependencies on array elements when the array is touched, since + * we cannot intercept array element access like property getters. + */ +function dependArray (value) { + for (var e = (void 0), i = 0, l = value.length; i < l; i++) { + e = value[i]; + e && e.__ob__ && e.__ob__.dep.depend(); + if (Array.isArray(e)) { + dependArray(e); + } + } +} + +/* */ + +/** + * Option overwriting strategies are functions that handle + * how to merge a parent option value and a child option + * value into the final value. + */ +var strats = config.optionMergeStrategies; + +/** + * Options with restrictions + */ +{ + strats.el = strats.propsData = function (parent, child, vm, key) { + if (!vm) { + warn( + "option \"" + key + "\" can only be used during instance " + + 'creation with the `new` keyword.' + ); + } + return defaultStrat(parent, child) + }; +} + +/** + * Helper that recursively merges two data objects together. + */ +function mergeData (to, from) { + if (!from) { return to } + var key, toVal, fromVal; + var keys = Object.keys(from); + for (var i = 0; i < keys.length; i++) { + key = keys[i]; + toVal = to[key]; + fromVal = from[key]; + if (!hasOwn(to, key)) { + set(to, key, fromVal); + } else if (isPlainObject(toVal) && isPlainObject(fromVal)) { + mergeData(toVal, fromVal); + } + } + return to +} + +/** + * Data + */ +function mergeDataOrFn ( + parentVal, + childVal, + vm +) { + if (!vm) { + // in a Vue.extend merge, both should be functions + if (!childVal) { + return parentVal + } + if (!parentVal) { + return childVal + } + // when parentVal & childVal are both present, + // we need to return a function that returns the + // merged result of both functions... no need to + // check if parentVal is a function here because + // it has to be a function to pass previous merges. + return function mergedDataFn () { + return mergeData( + typeof childVal === 'function' ? childVal.call(this) : childVal, + parentVal.call(this) + ) + } + } else if (parentVal || childVal) { + return function mergedInstanceDataFn () { + // instance merge + var instanceData = typeof childVal === 'function' + ? childVal.call(vm) + : childVal; + var defaultData = typeof parentVal === 'function' + ? parentVal.call(vm) + : undefined; + if (instanceData) { + return mergeData(instanceData, defaultData) + } else { + return defaultData + } + } + } +} + +strats.data = function ( + parentVal, + childVal, + vm +) { + if (!vm) { + if (childVal && typeof childVal !== 'function') { + "development" !== 'production' && warn( + 'The "data" option should be a function ' + + 'that returns a per-instance value in component ' + + 'definitions.', + vm + ); + + return parentVal + } + return mergeDataOrFn.call(this, parentVal, childVal) + } + + return mergeDataOrFn(parentVal, childVal, vm) +}; + +/** + * Hooks and props are merged as arrays. + */ +function mergeHook ( + parentVal, + childVal +) { + return childVal + ? parentVal + ? parentVal.concat(childVal) + : Array.isArray(childVal) + ? childVal + : [childVal] + : parentVal +} + +LIFECYCLE_HOOKS.forEach(function (hook) { + strats[hook] = mergeHook; +}); + +/** + * Assets + * + * When a vm is present (instance creation), we need to do + * a three-way merge between constructor options, instance + * options and parent options. + */ +function mergeAssets (parentVal, childVal) { + var res = Object.create(parentVal || null); + return childVal + ? extend(res, childVal) + : res +} + +ASSET_TYPES.forEach(function (type) { + strats[type + 's'] = mergeAssets; +}); + +/** + * Watchers. + * + * Watchers hashes should not overwrite one + * another, so we merge them as arrays. + */ +strats.watch = function (parentVal, childVal) { + // work around Firefox's Object.prototype.watch... + if (parentVal === nativeWatch) { parentVal = undefined; } + if (childVal === nativeWatch) { childVal = undefined; } + /* istanbul ignore if */ + if (!childVal) { return Object.create(parentVal || null) } + if (!parentVal) { return childVal } + var ret = {}; + extend(ret, parentVal); + for (var key in childVal) { + var parent = ret[key]; + var child = childVal[key]; + if (parent && !Array.isArray(parent)) { + parent = [parent]; + } + ret[key] = parent + ? parent.concat(child) + : Array.isArray(child) ? child : [child]; + } + return ret +}; + +/** + * Other object hashes. + */ +strats.props = +strats.methods = +strats.inject = +strats.computed = function (parentVal, childVal) { + if (!childVal) { return Object.create(parentVal || null) } + if (!parentVal) { return childVal } + var ret = Object.create(null); + extend(ret, parentVal); + extend(ret, childVal); + return ret +}; +strats.provide = mergeDataOrFn; + +/** + * Default strategy. + */ +var defaultStrat = function (parentVal, childVal) { + return childVal === undefined + ? parentVal + : childVal +}; + +/** + * Validate component names + */ +function checkComponents (options) { + for (var key in options.components) { + var lower = key.toLowerCase(); + if (isBuiltInTag(lower) || config.isReservedTag(lower)) { + warn( + 'Do not use built-in or reserved HTML elements as component ' + + 'id: ' + key + ); + } + } +} + +/** + * Ensure all props option syntax are normalized into the + * Object-based format. + */ +function normalizeProps (options) { + var props = options.props; + if (!props) { return } + var res = {}; + var i, val, name; + if (Array.isArray(props)) { + i = props.length; + while (i--) { + val = props[i]; + if (typeof val === 'string') { + name = camelize(val); + res[name] = { type: null }; + } else { + warn('props must be strings when using array syntax.'); + } + } + } else if (isPlainObject(props)) { + for (var key in props) { + val = props[key]; + name = camelize(key); + res[name] = isPlainObject(val) + ? val + : { type: val }; + } + } + options.props = res; +} + +/** + * Normalize all injections into Object-based format + */ +function normalizeInject (options) { + var inject = options.inject; + if (Array.isArray(inject)) { + var normalized = options.inject = {}; + for (var i = 0; i < inject.length; i++) { + normalized[inject[i]] = inject[i]; + } + } +} + +/** + * Normalize raw function directives into object format. + */ +function normalizeDirectives (options) { + var dirs = options.directives; + if (dirs) { + for (var key in dirs) { + var def = dirs[key]; + if (typeof def === 'function') { + dirs[key] = { bind: def, update: def }; + } + } + } +} + +/** + * Merge two option objects into a new one. + * Core utility used in both instantiation and inheritance. + */ +function mergeOptions ( + parent, + child, + vm +) { + { + checkComponents(child); + } + + if (typeof child === 'function') { + child = child.options; + } + + normalizeProps(child); + normalizeInject(child); + normalizeDirectives(child); + var extendsFrom = child.extends; + if (extendsFrom) { + parent = mergeOptions(parent, extendsFrom, vm); + } + if (child.mixins) { + for (var i = 0, l = child.mixins.length; i < l; i++) { + parent = mergeOptions(parent, child.mixins[i], vm); + } + } + var options = {}; + var key; + for (key in parent) { + mergeField(key); + } + for (key in child) { + if (!hasOwn(parent, key)) { + mergeField(key); + } + } + function mergeField (key) { + var strat = strats[key] || defaultStrat; + options[key] = strat(parent[key], child[key], vm, key); + } + return options +} + +/** + * Resolve an asset. + * This function is used because child instances need access + * to assets defined in its ancestor chain. + */ +function resolveAsset ( + options, + type, + id, + warnMissing +) { + /* istanbul ignore if */ + if (typeof id !== 'string') { + return + } + var assets = options[type]; + // check local registration variations first + if (hasOwn(assets, id)) { return assets[id] } + var camelizedId = camelize(id); + if (hasOwn(assets, camelizedId)) { return assets[camelizedId] } + var PascalCaseId = capitalize(camelizedId); + if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] } + // fallback to prototype chain + var res = assets[id] || assets[camelizedId] || assets[PascalCaseId]; + if ("development" !== 'production' && warnMissing && !res) { + warn( + 'Failed to resolve ' + type.slice(0, -1) + ': ' + id, + options + ); + } + return res +} + +/* */ + +function validateProp ( + key, + propOptions, + propsData, + vm +) { + var prop = propOptions[key]; + var absent = !hasOwn(propsData, key); + var value = propsData[key]; + // handle boolean props + if (isType(Boolean, prop.type)) { + if (absent && !hasOwn(prop, 'default')) { + value = false; + } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) { + value = true; + } + } + // check default value + if (value === undefined) { + value = getPropDefaultValue(vm, prop, key); + // since the default value is a fresh copy, + // make sure to observe it. + var prevShouldConvert = observerState.shouldConvert; + observerState.shouldConvert = true; + observe(value); + observerState.shouldConvert = prevShouldConvert; + } + { + assertProp(prop, key, value, vm, absent); + } + return value +} + +/** + * Get the default value of a prop. + */ +function getPropDefaultValue (vm, prop, key) { + // no default, return undefined + if (!hasOwn(prop, 'default')) { + return undefined + } + var def = prop.default; + // warn against non-factory defaults for Object & Array + if ("development" !== 'production' && isObject(def)) { + warn( + 'Invalid default value for prop "' + key + '": ' + + 'Props with type Object/Array must use a factory function ' + + 'to return the default value.', + vm + ); + } + // the raw prop value was also undefined from previous render, + // return previous default value to avoid unnecessary watcher trigger + if (vm && vm.$options.propsData && + vm.$options.propsData[key] === undefined && + vm._props[key] !== undefined + ) { + return vm._props[key] + } + // call factory function for non-Function types + // a value is Function if its prototype is function even across different execution context + return typeof def === 'function' && getType(prop.type) !== 'Function' + ? def.call(vm) + : def +} + +/** + * Assert whether a prop is valid. + */ +function assertProp ( + prop, + name, + value, + vm, + absent +) { + if (prop.required && absent) { + warn( + 'Missing required prop: "' + name + '"', + vm + ); + return + } + if (value == null && !prop.required) { + return + } + var type = prop.type; + var valid = !type || type === true; + var expectedTypes = []; + if (type) { + if (!Array.isArray(type)) { + type = [type]; + } + for (var i = 0; i < type.length && !valid; i++) { + var assertedType = assertType(value, type[i]); + expectedTypes.push(assertedType.expectedType || ''); + valid = assertedType.valid; + } + } + if (!valid) { + warn( + 'Invalid prop: type check failed for prop "' + name + '".' + + ' Expected ' + expectedTypes.map(capitalize).join(', ') + + ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.', + vm + ); + return + } + var validator = prop.validator; + if (validator) { + if (!validator(value)) { + warn( + 'Invalid prop: custom validator check failed for prop "' + name + '".', + vm + ); + } + } +} + +var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/; + +function assertType (value, type) { + var valid; + var expectedType = getType(type); + if (simpleCheckRE.test(expectedType)) { + valid = typeof value === expectedType.toLowerCase(); + } else if (expectedType === 'Object') { + valid = isPlainObject(value); + } else if (expectedType === 'Array') { + valid = Array.isArray(value); + } else { + valid = value instanceof type; + } + return { + valid: valid, + expectedType: expectedType + } +} + +/** + * Use function string name to check built-in types, + * because a simple equality check will fail when running + * across different vms / iframes. + */ +function getType (fn) { + var match = fn && fn.toString().match(/^\s*function (\w+)/); + return match ? match[1] : '' +} + +function isType (type, fn) { + if (!Array.isArray(fn)) { + return getType(fn) === getType(type) + } + for (var i = 0, len = fn.length; i < len; i++) { + if (getType(fn[i]) === getType(type)) { + return true + } + } + /* istanbul ignore next */ + return false +} + +/* */ + +var mark; +var measure; + +{ + var perf = inBrowser && window.performance; + /* istanbul ignore if */ + if ( + perf && + perf.mark && + perf.measure && + perf.clearMarks && + perf.clearMeasures + ) { + mark = function (tag) { return perf.mark(tag); }; + measure = function (name, startTag, endTag) { + perf.measure(name, startTag, endTag); + perf.clearMarks(startTag); + perf.clearMarks(endTag); + perf.clearMeasures(name); + }; + } +} + +/* not type checking this file because flow doesn't play well with Proxy */ + +var initProxy; + +{ + var allowedGlobals = makeMap( + 'Infinity,undefined,NaN,isFinite,isNaN,' + + 'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' + + 'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' + + 'require' // for Webpack/Browserify + ); + + var warnNonPresent = function (target, key) { + warn( + "Property or method \"" + key + "\" is not defined on the instance but " + + "referenced during render. Make sure to declare reactive data " + + "properties in the data option.", + target + ); + }; + + var hasProxy = + typeof Proxy !== 'undefined' && + Proxy.toString().match(/native code/); + + if (hasProxy) { + var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta'); + config.keyCodes = new Proxy(config.keyCodes, { + set: function set (target, key, value) { + if (isBuiltInModifier(key)) { + warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key)); + return false + } else { + target[key] = value; + return true + } + } + }); + } + + var hasHandler = { + has: function has (target, key) { + var has = key in target; + var isAllowed = allowedGlobals(key) || key.charAt(0) === '_'; + if (!has && !isAllowed) { + warnNonPresent(target, key); + } + return has || !isAllowed + } + }; + + var getHandler = { + get: function get (target, key) { + if (typeof key === 'string' && !(key in target)) { + warnNonPresent(target, key); + } + return target[key] + } + }; + + initProxy = function initProxy (vm) { + if (hasProxy) { + // determine which proxy handler to use + var options = vm.$options; + var handlers = options.render && options.render._withStripped + ? getHandler + : hasHandler; + vm._renderProxy = new Proxy(vm, handlers); + } else { + vm._renderProxy = vm; + } + }; +} + +/* */ + +var VNode = function VNode ( + tag, + data, + children, + text, + elm, + context, + componentOptions, + asyncFactory +) { + this.tag = tag; + this.data = data; + this.children = children; + this.text = text; + this.elm = elm; + this.ns = undefined; + this.context = context; + this.functionalContext = undefined; + this.key = data && data.key; + this.componentOptions = componentOptions; + this.componentInstance = undefined; + this.parent = undefined; + this.raw = false; + this.isStatic = false; + this.isRootInsert = true; + this.isComment = false; + this.isCloned = false; + this.isOnce = false; + this.asyncFactory = asyncFactory; + this.asyncMeta = undefined; + this.isAsyncPlaceholder = false; +}; + +var prototypeAccessors = { child: {} }; + +// DEPRECATED: alias for componentInstance for backwards compat. +/* istanbul ignore next */ +prototypeAccessors.child.get = function () { + return this.componentInstance +}; + +Object.defineProperties( VNode.prototype, prototypeAccessors ); + +var createEmptyVNode = function (text) { + if ( text === void 0 ) text = ''; + + var node = new VNode(); + node.text = text; + node.isComment = true; + return node +}; + +function createTextVNode (val) { + return new VNode(undefined, undefined, undefined, String(val)) +} + +// optimized shallow clone +// used for static nodes and slot nodes because they may be reused across +// multiple renders, cloning them avoids errors when DOM manipulations rely +// on their elm reference. +function cloneVNode (vnode) { + var cloned = new VNode( + vnode.tag, + vnode.data, + vnode.children, + vnode.text, + vnode.elm, + vnode.context, + vnode.componentOptions, + vnode.asyncFactory + ); + cloned.ns = vnode.ns; + cloned.isStatic = vnode.isStatic; + cloned.key = vnode.key; + cloned.isComment = vnode.isComment; + cloned.isCloned = true; + return cloned +} + +function cloneVNodes (vnodes) { + var len = vnodes.length; + var res = new Array(len); + for (var i = 0; i < len; i++) { + res[i] = cloneVNode(vnodes[i]); + } + return res +} + +/* */ + +var normalizeEvent = cached(function (name) { + var passive = name.charAt(0) === '&'; + name = passive ? name.slice(1) : name; + var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first + name = once$$1 ? name.slice(1) : name; + var capture = name.charAt(0) === '!'; + name = capture ? name.slice(1) : name; + return { + name: name, + once: once$$1, + capture: capture, + passive: passive + } +}); + +function createFnInvoker (fns) { + function invoker () { + var arguments$1 = arguments; + + var fns = invoker.fns; + if (Array.isArray(fns)) { + var cloned = fns.slice(); + for (var i = 0; i < cloned.length; i++) { + cloned[i].apply(null, arguments$1); + } + } else { + // return handler return value for single handlers + return fns.apply(null, arguments) + } + } + invoker.fns = fns; + return invoker +} + +function updateListeners ( + on, + oldOn, + add, + remove$$1, + vm +) { + var name, cur, old, event; + for (name in on) { + cur = on[name]; + old = oldOn[name]; + event = normalizeEvent(name); + if (isUndef(cur)) { + "development" !== 'production' && warn( + "Invalid handler for event \"" + (event.name) + "\": got " + String(cur), + vm + ); + } else if (isUndef(old)) { + if (isUndef(cur.fns)) { + cur = on[name] = createFnInvoker(cur); + } + add(event.name, cur, event.once, event.capture, event.passive); + } else if (cur !== old) { + old.fns = cur; + on[name] = old; + } + } + for (name in oldOn) { + if (isUndef(on[name])) { + event = normalizeEvent(name); + remove$$1(event.name, oldOn[name], event.capture); + } + } +} + +/* */ + +function mergeVNodeHook (def, hookKey, hook) { + var invoker; + var oldHook = def[hookKey]; + + function wrappedHook () { + hook.apply(this, arguments); + // important: remove merged hook to ensure it's called only once + // and prevent memory leak + remove(invoker.fns, wrappedHook); + } + + if (isUndef(oldHook)) { + // no existing hook + invoker = createFnInvoker([wrappedHook]); + } else { + /* istanbul ignore if */ + if (isDef(oldHook.fns) && isTrue(oldHook.merged)) { + // already a merged invoker + invoker = oldHook; + invoker.fns.push(wrappedHook); + } else { + // existing plain hook + invoker = createFnInvoker([oldHook, wrappedHook]); + } + } + + invoker.merged = true; + def[hookKey] = invoker; +} + +/* */ + +function extractPropsFromVNodeData ( + data, + Ctor, + tag +) { + // we are only extracting raw values here. + // validation and default values are handled in the child + // component itself. + var propOptions = Ctor.options.props; + if (isUndef(propOptions)) { + return + } + var res = {}; + var attrs = data.attrs; + var props = data.props; + if (isDef(attrs) || isDef(props)) { + for (var key in propOptions) { + var altKey = hyphenate(key); + { + var keyInLowerCase = key.toLowerCase(); + if ( + key !== keyInLowerCase && + attrs && hasOwn(attrs, keyInLowerCase) + ) { + tip( + "Prop \"" + keyInLowerCase + "\" is passed to component " + + (formatComponentName(tag || Ctor)) + ", but the declared prop name is" + + " \"" + key + "\". " + + "Note that HTML attributes are case-insensitive and camelCased " + + "props need to use their kebab-case equivalents when using in-DOM " + + "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"." + ); + } + } + checkProp(res, props, key, altKey, true) || + checkProp(res, attrs, key, altKey, false); + } + } + return res +} + +function checkProp ( + res, + hash, + key, + altKey, + preserve +) { + if (isDef(hash)) { + if (hasOwn(hash, key)) { + res[key] = hash[key]; + if (!preserve) { + delete hash[key]; + } + return true + } else if (hasOwn(hash, altKey)) { + res[key] = hash[altKey]; + if (!preserve) { + delete hash[altKey]; + } + return true + } + } + return false +} + +/* */ + +// The template compiler attempts to minimize the need for normalization by +// statically analyzing the template at compile time. +// +// For plain HTML markup, normalization can be completely skipped because the +// generated render function is guaranteed to return Array<VNode>. There are +// two cases where extra normalization is needed: + +// 1. When the children contains components - because a functional component +// may return an Array instead of a single root. In this case, just a simple +// normalization is needed - if any child is an Array, we flatten the whole +// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep +// because functional components already normalize their own children. +function simpleNormalizeChildren (children) { + for (var i = 0; i < children.length; i++) { + if (Array.isArray(children[i])) { + return Array.prototype.concat.apply([], children) + } + } + return children +} + +// 2. When the children contains constructs that always generated nested Arrays, +// e.g. <template>, <slot>, v-for, or when the children is provided by user +// with hand-written render functions / JSX. In such cases a full normalization +// is needed to cater to all possible types of children values. +function normalizeChildren (children) { + return isPrimitive(children) + ? [createTextVNode(children)] + : Array.isArray(children) + ? normalizeArrayChildren(children) + : undefined +} + +function isTextNode (node) { + return isDef(node) && isDef(node.text) && isFalse(node.isComment) +} + +function normalizeArrayChildren (children, nestedIndex) { + var res = []; + var i, c, last; + for (i = 0; i < children.length; i++) { + c = children[i]; + if (isUndef(c) || typeof c === 'boolean') { continue } + last = res[res.length - 1]; + // nested + if (Array.isArray(c)) { + res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i))); + } else if (isPrimitive(c)) { + if (isTextNode(last)) { + // merge adjacent text nodes + // this is necessary for SSR hydration because text nodes are + // essentially merged when rendered to HTML strings + (last).text += String(c); + } else if (c !== '') { + // convert primitive to vnode + res.push(createTextVNode(c)); + } + } else { + if (isTextNode(c) && isTextNode(last)) { + // merge adjacent text nodes + res[res.length - 1] = createTextVNode(last.text + c.text); + } else { + // default key for nested array children (likely generated by v-for) + if (isTrue(children._isVList) && + isDef(c.tag) && + isUndef(c.key) && + isDef(nestedIndex)) { + c.key = "__vlist" + nestedIndex + "_" + i + "__"; + } + res.push(c); + } + } + } + return res +} + +/* */ + +function ensureCtor (comp, base) { + if (comp.__esModule && comp.default) { + comp = comp.default; + } + return isObject(comp) + ? base.extend(comp) + : comp +} + +function createAsyncPlaceholder ( + factory, + data, + context, + children, + tag +) { + var node = createEmptyVNode(); + node.asyncFactory = factory; + node.asyncMeta = { data: data, context: context, children: children, tag: tag }; + return node +} + +function resolveAsyncComponent ( + factory, + baseCtor, + context +) { + if (isTrue(factory.error) && isDef(factory.errorComp)) { + return factory.errorComp + } + + if (isDef(factory.resolved)) { + return factory.resolved + } + + if (isTrue(factory.loading) && isDef(factory.loadingComp)) { + return factory.loadingComp + } + + if (isDef(factory.contexts)) { + // already pending + factory.contexts.push(context); + } else { + var contexts = factory.contexts = [context]; + var sync = true; + + var forceRender = function () { + for (var i = 0, l = contexts.length; i < l; i++) { + contexts[i].$forceUpdate(); + } + }; + + var resolve = once(function (res) { + // cache resolved + factory.resolved = ensureCtor(res, baseCtor); + // invoke callbacks only if this is not a synchronous resolve + // (async resolves are shimmed as synchronous during SSR) + if (!sync) { + forceRender(); + } + }); + + var reject = once(function (reason) { + "development" !== 'production' && warn( + "Failed to resolve async component: " + (String(factory)) + + (reason ? ("\nReason: " + reason) : '') + ); + if (isDef(factory.errorComp)) { + factory.error = true; + forceRender(); + } + }); + + var res = factory(resolve, reject); + + if (isObject(res)) { + if (typeof res.then === 'function') { + // () => Promise + if (isUndef(factory.resolved)) { + res.then(resolve, reject); + } + } else if (isDef(res.component) && typeof res.component.then === 'function') { + res.component.then(resolve, reject); + + if (isDef(res.error)) { + factory.errorComp = ensureCtor(res.error, baseCtor); + } + + if (isDef(res.loading)) { + factory.loadingComp = ensureCtor(res.loading, baseCtor); + if (res.delay === 0) { + factory.loading = true; + } else { + setTimeout(function () { + if (isUndef(factory.resolved) && isUndef(factory.error)) { + factory.loading = true; + forceRender(); + } + }, res.delay || 200); + } + } + + if (isDef(res.timeout)) { + setTimeout(function () { + if (isUndef(factory.resolved)) { + reject( + "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)) { + return c + } + } + } +} + +/* */ + +/* */ + +function initEvents (vm) { + vm._events = Object.create(null); + vm._hasHookEvent = false; + // init parent attached events + var listeners = vm.$options._parentListeners; + if (listeners) { + updateComponentListeners(vm, listeners); + } +} + +var target; + +function add (event, fn, once$$1) { + if (once$$1) { + target.$once(event, fn); + } else { + target.$on(event, fn); + } +} + +function remove$1 (event, fn) { + target.$off(event, fn); +} + +function updateComponentListeners ( + vm, + listeners, + oldListeners +) { + target = vm; + updateListeners(listeners, oldListeners || {}, add, remove$1, vm); +} + +function eventsMixin (Vue) { + var hookRE = /^hook:/; + Vue.prototype.$on = function (event, fn) { + var this$1 = this; + + var vm = this; + if (Array.isArray(event)) { + for (var i = 0, l = event.length; i < l; i++) { + this$1.$on(event[i], fn); + } + } else { + (vm._events[event] || (vm._events[event] = [])).push(fn); + // optimize hook:event cost by using a boolean flag marked at registration + // instead of a hash lookup + if (hookRE.test(event)) { + vm._hasHookEvent = true; + } + } + return vm + }; + + Vue.prototype.$once = function (event, fn) { + var vm = this; + function on () { + vm.$off(event, on); + fn.apply(vm, arguments); + } + on.fn = fn; + vm.$on(event, on); + return vm + }; + + Vue.prototype.$off = function (event, fn) { + var this$1 = this; + + var vm = this; + // all + if (!arguments.length) { + vm._events = Object.create(null); + return vm + } + // array of events + if (Array.isArray(event)) { + for (var i$1 = 0, l = event.length; i$1 < l; i$1++) { + this$1.$off(event[i$1], fn); + } + return vm + } + // specific event + var cbs = vm._events[event]; + if (!cbs) { + return vm + } + if (arguments.length === 1) { + vm._events[event] = null; + return vm + } + // specific handler + var cb; + var i = cbs.length; + while (i--) { + cb = cbs[i]; + if (cb === fn || cb.fn === fn) { + cbs.splice(i, 1); + break + } + } + return vm + }; + + Vue.prototype.$emit = function (event) { + var vm = this; + { + var lowerCaseEvent = event.toLowerCase(); + if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) { + tip( + "Event \"" + lowerCaseEvent + "\" is emitted in component " + + (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " + + "Note that HTML attributes are case-insensitive and you cannot use " + + "v-on to listen to camelCase events when using in-DOM templates. " + + "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"." + ); + } + } + var cbs = vm._events[event]; + if (cbs) { + cbs = cbs.length > 1 ? toArray(cbs) : cbs; + var args = toArray(arguments, 1); + for (var i = 0, l = cbs.length; i < l; i++) { + try { + cbs[i].apply(vm, args); + } catch (e) { + handleError(e, vm, ("event handler for \"" + event + "\"")); + } + } + } + return vm + }; +} + +/* */ + +/** + * Runtime helper for resolving raw children VNodes into a slot object. + */ +function resolveSlots ( + children, + context +) { + var slots = {}; + if (!children) { + return slots + } + var defaultSlot = []; + for (var i = 0, l = children.length; i < l; i++) { + var child = children[i]; + // named slots should only be respected if the vnode was rendered in the + // same context. + if ((child.context === context || child.functionalContext === context) && + child.data && child.data.slot != null + ) { + var name = child.data.slot; + var slot = (slots[name] || (slots[name] = [])); + if (child.tag === 'template') { + slot.push.apply(slot, child.children); + } else { + slot.push(child); + } + } else { + defaultSlot.push(child); + } + } + // ignore whitespace + if (!defaultSlot.every(isWhitespace)) { + slots.default = defaultSlot; + } + return slots +} + +function isWhitespace (node) { + return node.isComment || node.text === ' ' +} + +function resolveScopedSlots ( + fns, // see flow/vnode + res +) { + res = res || {}; + for (var i = 0; i < fns.length; i++) { + if (Array.isArray(fns[i])) { + resolveScopedSlots(fns[i], res); + } else { + res[fns[i].key] = fns[i].fn; + } + } + return res +} + +/* */ + +var activeInstance = null; +var isUpdatingChildComponent = false; + +function initLifecycle (vm) { + var options = vm.$options; + + // locate first non-abstract parent + var parent = options.parent; + if (parent && !options.abstract) { + while (parent.$options.abstract && parent.$parent) { + parent = parent.$parent; + } + parent.$children.push(vm); + } + + vm.$parent = parent; + vm.$root = parent ? parent.$root : vm; + + vm.$children = []; + vm.$refs = {}; + + vm._watcher = null; + vm._inactive = null; + vm._directInactive = false; + vm._isMounted = false; + vm._isDestroyed = false; + vm._isBeingDestroyed = false; +} + +function lifecycleMixin (Vue) { + Vue.prototype._update = function (vnode, hydrating) { + var vm = this; + if (vm._isMounted) { + callHook(vm, 'beforeUpdate'); + } + var prevEl = vm.$el; + var prevVnode = vm._vnode; + var prevActiveInstance = activeInstance; + activeInstance = vm; + vm._vnode = vnode; + // Vue.prototype.__patch__ is injected in entry points + // based on the rendering backend used. + if (!prevVnode) { + // initial render + vm.$el = vm.__patch__( + vm.$el, vnode, hydrating, false /* removeOnly */, + vm.$options._parentElm, + vm.$options._refElm + ); + // no need for the ref nodes after initial patch + // this prevents keeping a detached DOM tree in memory (#5851) + vm.$options._parentElm = vm.$options._refElm = null; + } else { + // updates + vm.$el = vm.__patch__(prevVnode, vnode); + } + activeInstance = prevActiveInstance; + // update __vue__ reference + if (prevEl) { + prevEl.__vue__ = null; + } + if (vm.$el) { + vm.$el.__vue__ = vm; + } + // if parent is an HOC, update its $el as well + if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) { + vm.$parent.$el = vm.$el; + } + // updated hook is called by the scheduler to ensure that children are + // updated in a parent's updated hook. + }; + + Vue.prototype.$forceUpdate = function () { + var vm = this; + if (vm._watcher) { + vm._watcher.update(); + } + }; + + Vue.prototype.$destroy = function () { + var vm = this; + if (vm._isBeingDestroyed) { + return + } + callHook(vm, 'beforeDestroy'); + vm._isBeingDestroyed = true; + // remove self from parent + var parent = vm.$parent; + if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) { + remove(parent.$children, vm); + } + // teardown watchers + if (vm._watcher) { + vm._watcher.teardown(); + } + var i = vm._watchers.length; + while (i--) { + vm._watchers[i].teardown(); + } + // remove reference from data ob + // frozen object may not have observer. + if (vm._data.__ob__) { + vm._data.__ob__.vmCount--; + } + // call the last hook... + vm._isDestroyed = true; + // invoke destroy hooks on current rendered tree + vm.__patch__(vm._vnode, null); + // fire destroyed hook + callHook(vm, 'destroyed'); + // turn off all instance listeners. + vm.$off(); + // remove __vue__ reference + if (vm.$el) { + vm.$el.__vue__ = null; + } + }; +} + +function mountComponent ( + vm, + el, + hydrating +) { + vm.$el = el; + if (!vm.$options.render) { + vm.$options.render = createEmptyVNode; + { + /* istanbul ignore if */ + if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') || + vm.$options.el || el) { + warn( + 'You are using the runtime-only build of Vue where the template ' + + 'compiler is not available. Either pre-compile the templates into ' + + 'render functions, or use the compiler-included build.', + vm + ); + } else { + warn( + 'Failed to mount component: template or render function not defined.', + vm + ); + } + } + } + callHook(vm, 'beforeMount'); + + var updateComponent; + /* istanbul ignore if */ + if ("development" !== 'production' && config.performance && mark) { + updateComponent = function () { + var name = vm._name; + var id = vm._uid; + var startTag = "vue-perf-start:" + id; + var endTag = "vue-perf-end:" + id; + + mark(startTag); + var vnode = vm._render(); + mark(endTag); + measure((name + " render"), startTag, endTag); + + mark(startTag); + vm._update(vnode, hydrating); + mark(endTag); + measure((name + " patch"), startTag, endTag); + }; + } else { + updateComponent = function () { + vm._update(vm._render(), hydrating); + }; + } + + vm._watcher = new Watcher(vm, updateComponent, noop); + hydrating = false; + + // manually mounted instance, call mounted on self + // mounted is called for render-created child components in its inserted hook + if (vm.$vnode == null) { + vm._isMounted = true; + callHook(vm, 'mounted'); + } + return vm +} + +function updateChildComponent ( + vm, + propsData, + listeners, + parentVnode, + renderChildren +) { + { + isUpdatingChildComponent = true; + } + + // determine whether component has slot children + // we need to do this before overwriting $options._renderChildren + var hasChildren = !!( + renderChildren || // has new static slots + vm.$options._renderChildren || // has old static slots + parentVnode.data.scopedSlots || // has new scoped slots + vm.$scopedSlots !== emptyObject // has old scoped slots + ); + + vm.$options._parentVnode = parentVnode; + vm.$vnode = parentVnode; // update vm's placeholder node without re-render + + if (vm._vnode) { // update child tree's parent + vm._vnode.parent = parentVnode; + } + vm.$options._renderChildren = renderChildren; + + // update $attrs and $listensers hash + // these are also reactive so they may trigger child update if the child + // used them during render + vm.$attrs = parentVnode.data && parentVnode.data.attrs; + vm.$listeners = listeners; + + // update props + if (propsData && vm.$options.props) { + observerState.shouldConvert = false; + var props = vm._props; + var propKeys = vm.$options._propKeys || []; + for (var i = 0; i < propKeys.length; i++) { + var key = propKeys[i]; + props[key] = validateProp(key, vm.$options.props, propsData, vm); + } + observerState.shouldConvert = true; + // keep a copy of raw propsData + vm.$options.propsData = propsData; + } + + // update listeners + if (listeners) { + var oldListeners = vm.$options._parentListeners; + vm.$options._parentListeners = listeners; + updateComponentListeners(vm, listeners, oldListeners); + } + // resolve slots + force update if has children + if (hasChildren) { + vm.$slots = resolveSlots(renderChildren, parentVnode.context); + vm.$forceUpdate(); + } + + { + isUpdatingChildComponent = false; + } +} + +function isInInactiveTree (vm) { + while (vm && (vm = vm.$parent)) { + if (vm._inactive) { return true } + } + return false +} + +function activateChildComponent (vm, direct) { + if (direct) { + vm._directInactive = false; + if (isInInactiveTree(vm)) { + return + } + } else if (vm._directInactive) { + return + } + if (vm._inactive || vm._inactive === null) { + vm._inactive = false; + for (var i = 0; i < vm.$children.length; i++) { + activateChildComponent(vm.$children[i]); + } + callHook(vm, 'activated'); + } +} + +function deactivateChildComponent (vm, direct) { + if (direct) { + vm._directInactive = true; + if (isInInactiveTree(vm)) { + return + } + } + if (!vm._inactive) { + vm._inactive = true; + for (var i = 0; i < vm.$children.length; i++) { + deactivateChildComponent(vm.$children[i]); + } + callHook(vm, 'deactivated'); + } +} + +function callHook (vm, hook) { + var handlers = vm.$options[hook]; + if (handlers) { + for (var i = 0, j = handlers.length; i < j; i++) { + try { + handlers[i].call(vm); + } catch (e) { + handleError(e, vm, (hook + " hook")); + } + } + } + if (vm._hasHookEvent) { + vm.$emit('hook:' + hook); + } +} + +/* */ + + +var MAX_UPDATE_COUNT = 100; + +var queue = []; +var activatedChildren = []; +var has = {}; +var circular = {}; +var waiting = false; +var flushing = false; +var index = 0; + +/** + * Reset the scheduler's state. + */ +function resetSchedulerState () { + index = queue.length = activatedChildren.length = 0; + has = {}; + { + circular = {}; + } + waiting = flushing = false; +} + +/** + * Flush both queues and run the watchers. + */ +function flushSchedulerQueue () { + flushing = true; + var watcher, id; + + // Sort queue before flush. + // This ensures that: + // 1. Components are updated from parent to child. (because parent is always + // created before the child) + // 2. A component's user watchers are run before its render watcher (because + // user watchers are created before the render watcher) + // 3. If a component is destroyed during a parent component's watcher run, + // its watchers can be skipped. + queue.sort(function (a, b) { return a.id - b.id; }); + + // do not cache length because more watchers might be pushed + // as we run existing watchers + for (index = 0; index < queue.length; index++) { + watcher = queue[index]; + id = watcher.id; + has[id] = null; + watcher.run(); + // in dev build, check and stop circular updates. + if ("development" !== 'production' && has[id] != null) { + circular[id] = (circular[id] || 0) + 1; + if (circular[id] > MAX_UPDATE_COUNT) { + warn( + 'You may have an infinite update loop ' + ( + watcher.user + ? ("in watcher with expression \"" + (watcher.expression) + "\"") + : "in a component render function." + ), + watcher.vm + ); + break + } + } + } + + // keep copies of post queues before resetting state + var activatedQueue = activatedChildren.slice(); + var updatedQueue = queue.slice(); + + resetSchedulerState(); + + // call component updated and activated hooks + callActivatedHooks(activatedQueue); + callUpdatedHooks(updatedQueue); + + // devtool hook + /* istanbul ignore if */ + if (devtools && config.devtools) { + devtools.emit('flush'); + } +} + +function callUpdatedHooks (queue) { + var i = queue.length; + while (i--) { + var watcher = queue[i]; + var vm = watcher.vm; + if (vm._watcher === watcher && vm._isMounted) { + callHook(vm, 'updated'); + } + } +} + +/** + * Queue a kept-alive component that was activated during patch. + * The queue will be processed after the entire tree has been patched. + */ +function queueActivatedComponent (vm) { + // setting _inactive to false here so that a render function can + // rely on checking whether it's in an inactive tree (e.g. router-view) + vm._inactive = false; + activatedChildren.push(vm); +} + +function callActivatedHooks (queue) { + for (var i = 0; i < queue.length; i++) { + queue[i]._inactive = true; + activateChildComponent(queue[i], true /* true */); + } +} + +/** + * Push a watcher into the watcher queue. + * Jobs with duplicate IDs will be skipped unless it's + * pushed when the queue is being flushed. + */ +function queueWatcher (watcher) { + var id = watcher.id; + if (has[id] == null) { + has[id] = true; + if (!flushing) { + queue.push(watcher); + } else { + // if already flushing, splice the watcher based on its id + // if already past its id, it will be run next immediately. + var i = queue.length - 1; + while (i > index && queue[i].id > watcher.id) { + i--; + } + queue.splice(i + 1, 0, watcher); + } + // queue the flush + if (!waiting) { + waiting = true; + nextTick(flushSchedulerQueue); + } + } +} + +/* */ + +var uid$2 = 0; + +/** + * A watcher parses an expression, collects dependencies, + * and fires callback when the expression value changes. + * This is used for both the $watch() api and directives. + */ +var Watcher = function Watcher ( + vm, + expOrFn, + cb, + options +) { + this.vm = vm; + vm._watchers.push(this); + // options + if (options) { + this.deep = !!options.deep; + this.user = !!options.user; + this.lazy = !!options.lazy; + this.sync = !!options.sync; + } else { + this.deep = this.user = this.lazy = this.sync = false; + } + this.cb = cb; + this.id = ++uid$2; // uid for batching + this.active = true; + this.dirty = this.lazy; // for lazy watchers + this.deps = []; + this.newDeps = []; + this.depIds = new _Set(); + this.newDepIds = new _Set(); + this.expression = expOrFn.toString(); + // parse expression for getter + if (typeof expOrFn === 'function') { + this.getter = expOrFn; + } else { + this.getter = parsePath(expOrFn); + if (!this.getter) { + this.getter = function () {}; + "development" !== 'production' && warn( + "Failed watching path: \"" + expOrFn + "\" " + + 'Watcher only accepts simple dot-delimited paths. ' + + 'For full control, use a function instead.', + vm + ); + } + } + this.value = this.lazy + ? undefined + : this.get(); +}; + +/** + * Evaluate the getter, and re-collect dependencies. + */ +Watcher.prototype.get = function get () { + pushTarget(this); + var value; + var vm = this.vm; + try { + value = this.getter.call(vm, vm); + } catch (e) { + if (this.user) { + handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\"")); + } else { + throw e + } + } finally { + // "touch" every property so they are all tracked as + // dependencies for deep watching + if (this.deep) { + traverse(value); + } + popTarget(); + this.cleanupDeps(); + } + return value +}; + +/** + * Add a dependency to this directive. + */ +Watcher.prototype.addDep = function addDep (dep) { + var id = dep.id; + if (!this.newDepIds.has(id)) { + this.newDepIds.add(id); + this.newDeps.push(dep); + if (!this.depIds.has(id)) { + dep.addSub(this); + } + } +}; + +/** + * Clean up for dependency collection. + */ +Watcher.prototype.cleanupDeps = function cleanupDeps () { + var this$1 = this; + + var i = this.deps.length; + while (i--) { + var dep = this$1.deps[i]; + if (!this$1.newDepIds.has(dep.id)) { + dep.removeSub(this$1); + } + } + var tmp = this.depIds; + this.depIds = this.newDepIds; + this.newDepIds = tmp; + this.newDepIds.clear(); + tmp = this.deps; + this.deps = this.newDeps; + this.newDeps = tmp; + this.newDeps.length = 0; +}; + +/** + * Subscriber interface. + * Will be called when a dependency changes. + */ +Watcher.prototype.update = function update () { + /* istanbul ignore else */ + if (this.lazy) { + this.dirty = true; + } else if (this.sync) { + this.run(); + } else { + queueWatcher(this); + } +}; + +/** + * Scheduler job interface. + * Will be called by the scheduler. + */ +Watcher.prototype.run = function run () { + if (this.active) { + var value = this.get(); + if ( + value !== this.value || + // Deep watchers and watchers on Object/Arrays should fire even + // when the value is the same, because the value may + // have mutated. + isObject(value) || + this.deep + ) { + // set new value + var oldValue = this.value; + this.value = value; + if (this.user) { + try { + this.cb.call(this.vm, value, oldValue); + } catch (e) { + handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\"")); + } + } else { + this.cb.call(this.vm, value, oldValue); + } + } + } +}; + +/** + * Evaluate the value of the watcher. + * This only gets called for lazy watchers. + */ +Watcher.prototype.evaluate = function evaluate () { + this.value = this.get(); + this.dirty = false; +}; + +/** + * Depend on all deps collected by this watcher. + */ +Watcher.prototype.depend = function depend () { + var this$1 = this; + + var i = this.deps.length; + while (i--) { + this$1.deps[i].depend(); + } +}; + +/** + * Remove self from all dependencies' subscriber list. + */ +Watcher.prototype.teardown = function teardown () { + var this$1 = this; + + if (this.active) { + // remove self from vm's watcher list + // this is a somewhat expensive operation so we skip it + // if the vm is being destroyed. + if (!this.vm._isBeingDestroyed) { + remove(this.vm._watchers, this); + } + var i = this.deps.length; + while (i--) { + this$1.deps[i].removeSub(this$1); + } + this.active = false; + } +}; + +/** + * Recursively traverse an object to evoke all converted + * getters, so that every nested property inside the object + * is collected as a "deep" dependency. + */ +var seenObjects = new _Set(); +function traverse (val) { + seenObjects.clear(); + _traverse(val, seenObjects); +} + +function _traverse (val, seen) { + var i, keys; + var isA = Array.isArray(val); + if ((!isA && !isObject(val)) || !Object.isExtensible(val)) { + return + } + if (val.__ob__) { + var depId = val.__ob__.dep.id; + if (seen.has(depId)) { + return + } + seen.add(depId); + } + if (isA) { + i = val.length; + while (i--) { _traverse(val[i], seen); } + } else { + keys = Object.keys(val); + i = keys.length; + while (i--) { _traverse(val[keys[i]], seen); } + } +} + +/* */ + +var sharedPropertyDefinition = { + enumerable: true, + configurable: true, + get: noop, + set: noop +}; + +function proxy (target, sourceKey, key) { + sharedPropertyDefinition.get = function proxyGetter () { + return this[sourceKey][key] + }; + sharedPropertyDefinition.set = function proxySetter (val) { + this[sourceKey][key] = val; + }; + Object.defineProperty(target, key, sharedPropertyDefinition); +} + +function initState (vm) { + vm._watchers = []; + var opts = vm.$options; + if (opts.props) { initProps(vm, opts.props); } + if (opts.methods) { initMethods(vm, opts.methods); } + if (opts.data) { + initData(vm); + } else { + observe(vm._data = {}, true /* asRootData */); + } + if (opts.computed) { initComputed(vm, opts.computed); } + if (opts.watch && opts.watch !== nativeWatch) { + initWatch(vm, opts.watch); + } +} + +function checkOptionType (vm, name) { + var option = vm.$options[name]; + if (!isPlainObject(option)) { + warn( + ("component option \"" + name + "\" should be an object."), + vm + ); + } +} + +function initProps (vm, propsOptions) { + var propsData = vm.$options.propsData || {}; + var props = vm._props = {}; + // cache prop keys so that future props updates can iterate using Array + // instead of dynamic object key enumeration. + var keys = vm.$options._propKeys = []; + var isRoot = !vm.$parent; + // root instance props should be converted + observerState.shouldConvert = isRoot; + var loop = function ( key ) { + keys.push(key); + var value = validateProp(key, propsOptions, propsData, vm); + /* istanbul ignore else */ + { + if (isReservedAttribute(key) || config.isReservedAttr(key)) { + warn( + ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."), + vm + ); + } + defineReactive$$1(props, key, value, function () { + if (vm.$parent && !isUpdatingChildComponent) { + warn( + "Avoid mutating a prop directly since the value will be " + + "overwritten whenever the parent component re-renders. " + + "Instead, use a data or computed property based on the prop's " + + "value. Prop being mutated: \"" + key + "\"", + vm + ); + } + }); + } + // static props are already proxied on the component's prototype + // during Vue.extend(). We only need to proxy props defined at + // instantiation here. + if (!(key in vm)) { + proxy(vm, "_props", key); + } + }; + + for (var key in propsOptions) loop( key ); + observerState.shouldConvert = true; +} + +function initData (vm) { + var data = vm.$options.data; + data = vm._data = typeof data === 'function' + ? getData(data, vm) + : data || {}; + if (!isPlainObject(data)) { + data = {}; + "development" !== 'production' && warn( + 'data functions should return an object:\n' + + 'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function', + vm + ); + } + // proxy data on instance + var keys = Object.keys(data); + var props = vm.$options.props; + var methods = vm.$options.methods; + var i = keys.length; + while (i--) { + var key = keys[i]; + { + if (methods && hasOwn(methods, key)) { + warn( + ("method \"" + key + "\" has already been defined as a data property."), + vm + ); + } + } + if (props && hasOwn(props, key)) { + "development" !== 'production' && warn( + "The data property \"" + key + "\" is already declared as a prop. " + + "Use prop default value instead.", + vm + ); + } else if (!isReserved(key)) { + proxy(vm, "_data", key); + } + } + // observe data + observe(data, true /* asRootData */); +} + +function getData (data, vm) { + try { + return data.call(vm) + } catch (e) { + handleError(e, vm, "data()"); + return {} + } +} + +var computedWatcherOptions = { lazy: true }; + +function initComputed (vm, computed) { + "development" !== 'production' && checkOptionType(vm, 'computed'); + var watchers = vm._computedWatchers = Object.create(null); + + for (var key in computed) { + var userDef = computed[key]; + var getter = typeof userDef === 'function' ? userDef : userDef.get; + { + if (getter === undefined) { + warn( + ("No getter function has been defined for computed property \"" + key + "\"."), + vm + ); + getter = noop; + } + } + // create internal watcher for the computed property. + watchers[key] = new Watcher(vm, getter, noop, computedWatcherOptions); + + // component-defined computed properties are already defined on the + // component prototype. We only need to define computed properties defined + // at instantiation here. + if (!(key in vm)) { + defineComputed(vm, key, userDef); + } else { + if (key in vm.$data) { + warn(("The computed property \"" + key + "\" is already defined in data."), vm); + } else if (vm.$options.props && key in vm.$options.props) { + warn(("The computed property \"" + key + "\" is already defined as a prop."), vm); + } + } + } +} + +function defineComputed (target, key, userDef) { + if (typeof userDef === 'function') { + sharedPropertyDefinition.get = createComputedGetter(key); + sharedPropertyDefinition.set = noop; + } else { + sharedPropertyDefinition.get = userDef.get + ? userDef.cache !== false + ? createComputedGetter(key) + : userDef.get + : noop; + sharedPropertyDefinition.set = userDef.set + ? userDef.set + : noop; + } + Object.defineProperty(target, key, sharedPropertyDefinition); +} + +function createComputedGetter (key) { + return function computedGetter () { + var watcher = this._computedWatchers && this._computedWatchers[key]; + if (watcher) { + if (watcher.dirty) { + watcher.evaluate(); + } + if (Dep.target) { + watcher.depend(); + } + return watcher.value + } + } +} + +function initMethods (vm, methods) { + "development" !== 'production' && checkOptionType(vm, 'methods'); + var props = vm.$options.props; + for (var key in methods) { + vm[key] = methods[key] == null ? noop : bind(methods[key], vm); + { + if (methods[key] == null) { + warn( + "method \"" + key + "\" has an undefined value in the component definition. " + + "Did you reference the function correctly?", + vm + ); + } + if (props && hasOwn(props, key)) { + warn( + ("method \"" + key + "\" has already been defined as a prop."), + vm + ); + } + } + } +} + +function initWatch (vm, watch) { + "development" !== 'production' && checkOptionType(vm, 'watch'); + for (var key in watch) { + var handler = watch[key]; + if (Array.isArray(handler)) { + for (var i = 0; i < handler.length; i++) { + createWatcher(vm, key, handler[i]); + } + } else { + createWatcher(vm, key, handler); + } + } +} + +function createWatcher ( + vm, + keyOrFn, + handler, + options +) { + if (isPlainObject(handler)) { + options = handler; + handler = handler.handler; + } + if (typeof handler === 'string') { + handler = vm[handler]; + } + return vm.$watch(keyOrFn, handler, options) +} + +function stateMixin (Vue) { + // flow somehow has problems with directly declared definition object + // when using Object.defineProperty, so we have to procedurally build up + // the object here. + var dataDef = {}; + dataDef.get = function () { return this._data }; + var propsDef = {}; + propsDef.get = function () { return this._props }; + { + dataDef.set = function (newData) { + warn( + 'Avoid replacing instance root $data. ' + + 'Use nested data properties instead.', + this + ); + }; + propsDef.set = function () { + warn("$props is readonly.", this); + }; + } + Object.defineProperty(Vue.prototype, '$data', dataDef); + Object.defineProperty(Vue.prototype, '$props', propsDef); + + Vue.prototype.$set = set; + Vue.prototype.$delete = del; + + Vue.prototype.$watch = function ( + expOrFn, + cb, + options + ) { + var vm = this; + if (isPlainObject(cb)) { + return createWatcher(vm, expOrFn, cb, options) + } + options = options || {}; + options.user = true; + var watcher = new Watcher(vm, expOrFn, cb, options); + if (options.immediate) { + cb.call(vm, watcher.value); + } + return function unwatchFn () { + watcher.teardown(); + } + }; +} + +/* */ + +function initProvide (vm) { + var provide = vm.$options.provide; + if (provide) { + vm._provided = typeof provide === 'function' + ? provide.call(vm) + : provide; + } +} + +function initInjections (vm) { + var result = resolveInject(vm.$options.inject, vm); + if (result) { + observerState.shouldConvert = false; + Object.keys(result).forEach(function (key) { + /* istanbul ignore else */ + { + 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 + ); + }); + } + }); + observerState.shouldConvert = true; + } +} + +function resolveInject (inject, vm) { + if (inject) { + // inject is :any because flow is not smart enough to figure out cached + var result = Object.create(null); + var keys = hasSymbol + ? Reflect.ownKeys(inject) + : Object.keys(inject); + + for (var i = 0; i < keys.length; i++) { + var key = keys[i]; + var provideKey = inject[key]; + var source = vm; + while (source) { + if (source._provided && provideKey in source._provided) { + result[key] = source._provided[provideKey]; + break + } + source = source.$parent; + } + if ("development" !== 'production' && !hasOwn(result, key)) { + warn(("Injection \"" + key + "\" not found"), vm); + } + } + return result + } +} + +/* */ + +function createFunctionalComponent ( + Ctor, + propsData, + data, + context, + children +) { + var props = {}; + var propOptions = Ctor.options.props; + if (isDef(propOptions)) { + for (var key in propOptions) { + props[key] = validateProp(key, propOptions, propsData || {}); + } + } else { + if (isDef(data.attrs)) { mergeProps(props, data.attrs); } + if (isDef(data.props)) { mergeProps(props, data.props); } + } + // ensure the createElement function in functional components + // gets a unique context - this is necessary for correct named slot check + var _context = Object.create(context); + var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); }; + var vnode = Ctor.options.render.call(null, h, { + data: data, + props: props, + children: children, + parent: context, + listeners: data.on || {}, + injections: resolveInject(Ctor.options.inject, context), + slots: function () { return resolveSlots(children, context); } + }); + if (vnode instanceof VNode) { + vnode.functionalContext = context; + vnode.functionalOptions = Ctor.options; + if (data.slot) { + (vnode.data || (vnode.data = {})).slot = data.slot; + } + } + return vnode +} + +function mergeProps (to, from) { + for (var key in from) { + to[camelize(key)] = from[key]; + } +} + +/* */ + +// hooks to be invoked on component VNodes during patch +var componentVNodeHooks = { + init: function init ( + vnode, + hydrating, + parentElm, + refElm + ) { + if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) { + var child = vnode.componentInstance = createComponentInstanceForVnode( + vnode, + activeInstance, + parentElm, + refElm + ); + child.$mount(hydrating ? vnode.elm : undefined, hydrating); + } else if (vnode.data.keepAlive) { + // kept-alive components, treat as a patch + var mountedNode = vnode; // work around flow + componentVNodeHooks.prepatch(mountedNode, mountedNode); + } + }, + + prepatch: function prepatch (oldVnode, vnode) { + var options = vnode.componentOptions; + var child = vnode.componentInstance = oldVnode.componentInstance; + updateChildComponent( + child, + options.propsData, // updated props + options.listeners, // updated listeners + vnode, // new parent vnode + options.children // new children + ); + }, + + insert: function insert (vnode) { + var context = vnode.context; + var componentInstance = vnode.componentInstance; + if (!componentInstance._isMounted) { + componentInstance._isMounted = true; + callHook(componentInstance, 'mounted'); + } + if (vnode.data.keepAlive) { + if (context._isMounted) { + // vue-router#1212 + // During updates, a kept-alive component's child components may + // change, so directly walking the tree here may call activated hooks + // on incorrect children. Instead we push them into a queue which will + // be processed after the whole patch process ended. + queueActivatedComponent(componentInstance); + } else { + activateChildComponent(componentInstance, true /* direct */); + } + } + }, + + destroy: function destroy (vnode) { + var componentInstance = vnode.componentInstance; + if (!componentInstance._isDestroyed) { + if (!vnode.data.keepAlive) { + componentInstance.$destroy(); + } else { + deactivateChildComponent(componentInstance, true /* direct */); + } + } + } +}; + +var hooksToMerge = Object.keys(componentVNodeHooks); + +function createComponent ( + Ctor, + data, + context, + children, + tag +) { + if (isUndef(Ctor)) { + return + } + + var baseCtor = context.$options._base; + + // plain options object: turn it into a constructor + if (isObject(Ctor)) { + Ctor = baseCtor.extend(Ctor); + } + + // if at this stage it's not a constructor or an async component factory, + // reject. + if (typeof Ctor !== 'function') { + { + warn(("Invalid Component definition: " + (String(Ctor))), context); + } + return + } + + // async component + var asyncFactory; + if (isUndef(Ctor.cid)) { + asyncFactory = Ctor; + Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context); + if (Ctor === undefined) { + // return a placeholder node for async component, which is rendered + // as a comment node but preserves all the raw information for the node. + // the information will be used for async server-rendering and hydration. + return createAsyncPlaceholder( + asyncFactory, + data, + context, + children, + tag + ) + } + } + + data = data || {}; + + // resolve constructor options in case global mixins are applied after + // component constructor creation + resolveConstructorOptions(Ctor); + + // transform component v-model data into props & events + if (isDef(data.model)) { + transformModel(Ctor.options, data); + } + + // extract props + var propsData = extractPropsFromVNodeData(data, Ctor, tag); + + // functional component + if (isTrue(Ctor.options.functional)) { + return createFunctionalComponent(Ctor, propsData, data, context, children) + } + + // keep listeners + var listeners = data.on; + + if (isTrue(Ctor.options.abstract)) { + // abstract components do not keep anything + // other than props & listeners & slot + + // work around flow + var slot = data.slot; + data = {}; + if (slot) { + data.slot = slot; + } + } + + // merge component management hooks onto the placeholder node + mergeHooks(data); + + // return a placeholder vnode + var name = Ctor.options.name || tag; + var vnode = new VNode( + ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')), + data, undefined, undefined, undefined, context, + { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children }, + asyncFactory + ); + return vnode +} + +function createComponentInstanceForVnode ( + vnode, // we know it's MountedComponentVNode but flow doesn't + parent, // activeInstance in lifecycle state + parentElm, + refElm +) { + var vnodeComponentOptions = vnode.componentOptions; + var options = { + _isComponent: true, + parent: parent, + propsData: vnodeComponentOptions.propsData, + _componentTag: vnodeComponentOptions.tag, + _parentVnode: vnode, + _parentListeners: vnodeComponentOptions.listeners, + _renderChildren: vnodeComponentOptions.children, + _parentElm: parentElm || null, + _refElm: refElm || null + }; + // check inline-template render functions + var inlineTemplate = vnode.data.inlineTemplate; + if (isDef(inlineTemplate)) { + options.render = inlineTemplate.render; + options.staticRenderFns = inlineTemplate.staticRenderFns; + } + return new vnodeComponentOptions.Ctor(options) +} + +function mergeHooks (data) { + if (!data.hook) { + data.hook = {}; + } + for (var i = 0; i < hooksToMerge.length; i++) { + var key = hooksToMerge[i]; + var fromParent = data.hook[key]; + var ours = componentVNodeHooks[key]; + data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours; + } +} + +function mergeHook$1 (one, two) { + return function (a, b, c, d) { + one(a, b, c, d); + two(a, b, c, d); + } +} + +// transform component v-model info (value and callback) into +// prop and event handler respectively. +function transformModel (options, data) { + var prop = (options.model && options.model.prop) || 'value'; + var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value; + var on = data.on || (data.on = {}); + if (isDef(on[event])) { + on[event] = [data.model.callback].concat(on[event]); + } else { + on[event] = data.model.callback; + } +} + +/* */ + +var SIMPLE_NORMALIZE = 1; +var ALWAYS_NORMALIZE = 2; + +// wrapper function for providing a more flexible interface +// without getting yelled at by flow +function createElement ( + context, + tag, + data, + children, + normalizationType, + alwaysNormalize +) { + if (Array.isArray(data) || isPrimitive(data)) { + normalizationType = children; + children = data; + data = undefined; + } + if (isTrue(alwaysNormalize)) { + normalizationType = ALWAYS_NORMALIZE; + } + return _createElement(context, tag, data, children, normalizationType) +} + +function _createElement ( + context, + tag, + data, + children, + normalizationType +) { + if (isDef(data) && isDef((data).__ob__)) { + "development" !== 'production' && warn( + "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" + + 'Always create fresh vnode data objects in each render!', + context + ); + return createEmptyVNode() + } + // object syntax in v-bind + if (isDef(data) && isDef(data.is)) { + tag = data.is; + } + if (!tag) { + // in case of component :is set to falsy value + return createEmptyVNode() + } + // warn against non-primitive key + if ("development" !== 'production' && + isDef(data) && isDef(data.key) && !isPrimitive(data.key) + ) { + warn( + 'Avoid using non-primitive value as key, ' + + 'use string/number value instead.', + context + ); + } + // support single function children as default scoped slot + if (Array.isArray(children) && + typeof children[0] === 'function' + ) { + data = data || {}; + data.scopedSlots = { default: children[0] }; + children.length = 0; + } + if (normalizationType === ALWAYS_NORMALIZE) { + children = normalizeChildren(children); + } else if (normalizationType === SIMPLE_NORMALIZE) { + children = simpleNormalizeChildren(children); + } + var vnode, ns; + if (typeof tag === 'string') { + var Ctor; + ns = config.getTagNamespace(tag); + if (config.isReservedTag(tag)) { + // platform built-in elements + vnode = new VNode( + config.parsePlatformTagName(tag), data, children, + undefined, undefined, context + ); + } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) { + // component + vnode = createComponent(Ctor, data, context, children, tag); + } else { + // unknown or unlisted namespaced elements + // check at runtime because it may get assigned a namespace when its + // parent normalizes children + vnode = new VNode( + tag, data, children, + undefined, undefined, context + ); + } + } else { + // direct component options / constructor + vnode = createComponent(tag, data, context, children); + } + if (isDef(vnode)) { + if (ns) { applyNS(vnode, ns); } + return vnode + } else { + return createEmptyVNode() + } +} + +function applyNS (vnode, ns) { + vnode.ns = ns; + if (vnode.tag === 'foreignObject') { + // use default namespace inside foreignObject + return + } + if (isDef(vnode.children)) { + for (var i = 0, l = vnode.children.length; i < l; i++) { + var child = vnode.children[i]; + if (isDef(child.tag) && isUndef(child.ns)) { + applyNS(child, ns); + } + } + } +} + +/* */ + +/** + * Runtime helper for rendering v-for lists. + */ +function renderList ( + val, + render +) { + var ret, i, l, keys, key; + if (Array.isArray(val) || typeof val === 'string') { + ret = new Array(val.length); + for (i = 0, l = val.length; i < l; i++) { + ret[i] = render(val[i], i); + } + } else if (typeof val === 'number') { + ret = new Array(val); + for (i = 0; i < val; i++) { + ret[i] = render(i + 1, i); + } + } else if (isObject(val)) { + keys = Object.keys(val); + ret = new Array(keys.length); + for (i = 0, l = keys.length; i < l; i++) { + key = keys[i]; + ret[i] = render(val[key], key, i); + } + } + if (isDef(ret)) { + (ret)._isVList = true; + } + return ret +} + +/* */ + +/** + * Runtime helper for rendering <slot> + */ +function renderSlot ( + name, + fallback, + props, + bindObject +) { + var scopedSlotFn = this.$scopedSlots[name]; + if (scopedSlotFn) { // scoped slot + props = props || {}; + if (bindObject) { + props = extend(extend({}, bindObject), props); + } + return scopedSlotFn(props) || fallback + } else { + var slotNodes = this.$slots[name]; + // warn duplicate slot usage + if (slotNodes && "development" !== 'production') { + slotNodes._rendered && warn( + "Duplicate presence of slot \"" + name + "\" found in the same render tree " + + "- this will likely cause render errors.", + this + ); + slotNodes._rendered = true; + } + return slotNodes || fallback + } +} + +/* */ + +/** + * Runtime helper for resolving filters + */ +function resolveFilter (id) { + return resolveAsset(this.$options, 'filters', id, true) || identity +} + +/* */ + +/** + * Runtime helper for checking keyCodes from config. + */ +function checkKeyCodes ( + eventKeyCode, + key, + builtInAlias +) { + var keyCodes = config.keyCodes[key] || builtInAlias; + if (Array.isArray(keyCodes)) { + return keyCodes.indexOf(eventKeyCode) === -1 + } else { + return keyCodes !== eventKeyCode + } +} + +/* */ + +/** + * Runtime helper for merging v-bind="object" into a VNode's data. + */ +function bindObjectProps ( + data, + tag, + value, + asProp, + isSync +) { + if (value) { + if (!isObject(value)) { + "development" !== 'production' && warn( + 'v-bind without argument expects an Object or Array value', + this + ); + } else { + if (Array.isArray(value)) { + value = toObject(value); + } + var hash; + var loop = function ( key ) { + if ( + key === 'class' || + key === 'style' || + isReservedAttribute(key) + ) { + hash = data; + } else { + var type = data.attrs && data.attrs.type; + hash = asProp || config.mustUseProp(tag, type, key) + ? data.domProps || (data.domProps = {}) + : data.attrs || (data.attrs = {}); + } + if (!(key in hash)) { + hash[key] = value[key]; + + if (isSync) { + var on = data.on || (data.on = {}); + on[("update:" + key)] = function ($event) { + value[key] = $event; + }; + } + } + }; + + for (var key in value) loop( key ); + } + } + return data +} + +/* */ + +/** + * Runtime helper for rendering static trees. + */ +function renderStatic ( + index, + isInFor +) { + var tree = this._staticTrees[index]; + // if has already-rendered static tree and not inside v-for, + // we can reuse the same tree by doing a shallow clone. + if (tree && !isInFor) { + return Array.isArray(tree) + ? cloneVNodes(tree) + : cloneVNode(tree) + } + // otherwise, render a fresh tree. + tree = this._staticTrees[index] = + this.$options.staticRenderFns[index].call(this._renderProxy); + markStatic(tree, ("__static__" + index), false); + return tree +} + +/** + * Runtime helper for v-once. + * Effectively it means marking the node as static with a unique key. + */ +function markOnce ( + tree, + index, + key +) { + markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true); + return tree +} + +function markStatic ( + tree, + key, + isOnce +) { + if (Array.isArray(tree)) { + for (var i = 0; i < tree.length; i++) { + if (tree[i] && typeof tree[i] !== 'string') { + markStaticNode(tree[i], (key + "_" + i), isOnce); + } + } + } else { + markStaticNode(tree, key, isOnce); + } +} + +function markStaticNode (node, key, isOnce) { + node.isStatic = true; + node.key = key; + node.isOnce = isOnce; +} + +/* */ + +function bindObjectListeners (data, value) { + if (value) { + if (!isPlainObject(value)) { + "development" !== 'production' && warn( + 'v-on without argument expects an Object value', + this + ); + } else { + var on = data.on = data.on ? extend({}, data.on) : {}; + for (var key in value) { + var existing = on[key]; + var ours = value[key]; + on[key] = existing ? [].concat(ours, existing) : ours; + } + } + } + return data +} + +/* */ + +function initRender (vm) { + vm._vnode = null; // the root of the child tree + vm._staticTrees = null; + var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree + var renderContext = parentVnode && parentVnode.context; + vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext); + vm.$scopedSlots = emptyObject; + // bind the createElement fn to this instance + // so that we get proper render context inside it. + // args order: tag, data, children, normalizationType, alwaysNormalize + // internal version is used by render functions compiled from templates + vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); }; + // normalization is always applied for the public version, used in + // user-written render functions. + vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); }; + + // $attrs & $listeners are exposed for easier HOC creation. + // they need to be reactive so that HOCs using them are always updated + var parentData = parentVnode && parentVnode.data; + /* istanbul ignore else */ + { + defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () { + !isUpdatingChildComponent && warn("$attrs is readonly.", vm); + }, true); + defineReactive$$1(vm, '$listeners', parentData && parentData.on, function () { + !isUpdatingChildComponent && warn("$listeners is readonly.", vm); + }, true); + } +} + +function renderMixin (Vue) { + Vue.prototype.$nextTick = function (fn) { + return nextTick(fn, this) + }; + + Vue.prototype._render = function () { + var vm = this; + var ref = vm.$options; + var render = ref.render; + var staticRenderFns = ref.staticRenderFns; + var _parentVnode = ref._parentVnode; + + if (vm._isMounted) { + // clone slot nodes on re-renders + for (var key in vm.$slots) { + vm.$slots[key] = cloneVNodes(vm.$slots[key]); + } + } + + vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject; + + if (staticRenderFns && !vm._staticTrees) { + vm._staticTrees = []; + } + // set parent vnode. this allows render functions to have access + // to the data on the placeholder node. + vm.$vnode = _parentVnode; + // render self + var vnode; + try { + vnode = render.call(vm._renderProxy, vm.$createElement); + } catch (e) { + handleError(e, vm, "render function"); + // return error render result, + // or previous vnode to prevent render error causing blank component + /* istanbul ignore else */ + { + vnode = vm.$options.renderError + ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e) + : vm._vnode; + } + } + // return empty vnode in case the render function errored out + if (!(vnode instanceof VNode)) { + if ("development" !== 'production' && Array.isArray(vnode)) { + warn( + 'Multiple root nodes returned from render function. Render function ' + + 'should return a single root node.', + vm + ); + } + vnode = createEmptyVNode(); + } + // set parent + vnode.parent = _parentVnode; + return vnode + }; + + // internal render helpers. + // these are exposed on the instance prototype to reduce generated render + // code size. + Vue.prototype._o = markOnce; + Vue.prototype._n = toNumber; + Vue.prototype._s = toString; + Vue.prototype._l = renderList; + Vue.prototype._t = renderSlot; + Vue.prototype._q = looseEqual; + Vue.prototype._i = looseIndexOf; + Vue.prototype._m = renderStatic; + Vue.prototype._f = resolveFilter; + Vue.prototype._k = checkKeyCodes; + Vue.prototype._b = bindObjectProps; + Vue.prototype._v = createTextVNode; + Vue.prototype._e = createEmptyVNode; + Vue.prototype._u = resolveScopedSlots; + Vue.prototype._g = bindObjectListeners; +} + +/* */ + +var uid$1 = 0; + +function initMixin (Vue) { + Vue.prototype._init = function (options) { + var vm = this; + // a uid + vm._uid = uid$1++; + + var startTag, endTag; + /* istanbul ignore if */ + if ("development" !== 'production' && config.performance && mark) { + startTag = "vue-perf-init:" + (vm._uid); + endTag = "vue-perf-end:" + (vm._uid); + mark(startTag); + } + + // a flag to avoid this being observed + vm._isVue = true; + // merge options + if (options && options._isComponent) { + // optimize internal component instantiation + // since dynamic options merging is pretty slow, and none of the + // internal component options needs special treatment. + initInternalComponent(vm, options); + } else { + vm.$options = mergeOptions( + resolveConstructorOptions(vm.constructor), + options || {}, + vm + ); + } + /* istanbul ignore else */ + { + 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 ("development" !== 'production' && config.performance && mark) { + vm._name = formatComponentName(vm, false); + mark(endTag); + measure(((vm._name) + " init"), startTag, endTag); + } + + if (vm.$options.el) { + vm.$mount(vm.$options.el); + } + }; +} + +function initInternalComponent (vm, options) { + var opts = vm.$options = Object.create(vm.constructor.options); + // doing this because it's faster than dynamic enumeration. + opts.parent = options.parent; + opts.propsData = options.propsData; + opts._parentVnode = options._parentVnode; + opts._parentListeners = options._parentListeners; + opts._renderChildren = options._renderChildren; + opts._componentTag = options._componentTag; + opts._parentElm = options._parentElm; + opts._refElm = options._refElm; + if (options.render) { + opts.render = options.render; + opts.staticRenderFns = options.staticRenderFns; + } +} + +function resolveConstructorOptions (Ctor) { + var options = Ctor.options; + if (Ctor.super) { + var superOptions = resolveConstructorOptions(Ctor.super); + var cachedSuperOptions = Ctor.superOptions; + if (superOptions !== cachedSuperOptions) { + // super option changed, + // need to resolve new options. + Ctor.superOptions = superOptions; + // check if there are any late-modified/attached options (#4976) + var modifiedOptions = resolveModifiedOptions(Ctor); + // update base extend options + if (modifiedOptions) { + extend(Ctor.extendOptions, modifiedOptions); + } + options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions); + if (options.name) { + options.components[options.name] = Ctor; + } + } + } + return options +} + +function resolveModifiedOptions (Ctor) { + var modified; + var latest = Ctor.options; + var extended = Ctor.extendOptions; + var sealed = Ctor.sealedOptions; + for (var key in latest) { + if (latest[key] !== sealed[key]) { + if (!modified) { modified = {}; } + modified[key] = dedupe(latest[key], extended[key], sealed[key]); + } + } + return modified +} + +function dedupe (latest, extended, sealed) { + // compare latest and sealed to ensure lifecycle hooks won't be duplicated + // between merges + if (Array.isArray(latest)) { + var res = []; + sealed = Array.isArray(sealed) ? sealed : [sealed]; + extended = Array.isArray(extended) ? extended : [extended]; + for (var i = 0; i < latest.length; i++) { + // push original options and not sealed options to exclude duplicated options + if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) { + res.push(latest[i]); + } + } + return res + } else { + return latest + } +} + +function Vue$3 (options) { + if ("development" !== 'production' && + !(this instanceof Vue$3) + ) { + warn('Vue is a constructor and should be called with the `new` keyword'); + } + this._init(options); +} + +initMixin(Vue$3); +stateMixin(Vue$3); +eventsMixin(Vue$3); +lifecycleMixin(Vue$3); +renderMixin(Vue$3); + +/* */ + +function initUse (Vue) { + Vue.use = function (plugin) { + var installedPlugins = (this._installedPlugins || (this._installedPlugins = [])); + if (installedPlugins.indexOf(plugin) > -1) { + return this + } + + // additional parameters + var args = toArray(arguments, 1); + args.unshift(this); + if (typeof plugin.install === 'function') { + plugin.install.apply(plugin, args); + } else if (typeof plugin === 'function') { + plugin.apply(null, args); + } + installedPlugins.push(plugin); + return this + }; +} + +/* */ + +function initMixin$1 (Vue) { + Vue.mixin = function (mixin) { + this.options = mergeOptions(this.options, mixin); + return this + }; +} + +/* */ + +function initExtend (Vue) { + /** + * Each instance constructor, including Vue, has a unique + * cid. This enables us to create wrapped "child + * constructors" for prototypal inheritance and cache them. + */ + Vue.cid = 0; + var cid = 1; + + /** + * Class inheritance + */ + Vue.extend = function (extendOptions) { + extendOptions = extendOptions || {}; + var Super = this; + var SuperId = Super.cid; + var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {}); + if (cachedCtors[SuperId]) { + return cachedCtors[SuperId] + } + + var name = extendOptions.name || Super.options.name; + { + if (!/^[a-zA-Z][\w-]*$/.test(name)) { + warn( + 'Invalid component name: "' + name + '". Component names ' + + 'can only contain alphanumeric characters and the hyphen, ' + + 'and must start with a letter.' + ); + } + } + + var Sub = function VueComponent (options) { + this._init(options); + }; + Sub.prototype = Object.create(Super.prototype); + Sub.prototype.constructor = Sub; + Sub.cid = cid++; + Sub.options = mergeOptions( + Super.options, + extendOptions + ); + Sub['super'] = Super; + + // For props and computed properties, we define the proxy getters on + // the Vue instances at extension time, on the extended prototype. This + // avoids Object.defineProperty calls for each instance created. + if (Sub.options.props) { + initProps$1(Sub); + } + if (Sub.options.computed) { + initComputed$1(Sub); + } + + // allow further extension/mixin/plugin usage + Sub.extend = Super.extend; + Sub.mixin = Super.mixin; + Sub.use = Super.use; + + // create asset registers, so extended classes + // can have their private assets too. + ASSET_TYPES.forEach(function (type) { + Sub[type] = Super[type]; + }); + // enable recursive self-lookup + if (name) { + Sub.options.components[name] = Sub; + } + + // keep a reference to the super options at extension time. + // later at instantiation we can check if Super's options have + // been updated. + Sub.superOptions = Super.options; + Sub.extendOptions = extendOptions; + Sub.sealedOptions = extend({}, Sub.options); + + // cache constructor + cachedCtors[SuperId] = Sub; + return Sub + }; +} + +function initProps$1 (Comp) { + var props = Comp.options.props; + for (var key in props) { + proxy(Comp.prototype, "_props", key); + } +} + +function initComputed$1 (Comp) { + var computed = Comp.options.computed; + for (var key in computed) { + defineComputed(Comp.prototype, key, computed[key]); + } +} + +/* */ + +function initAssetRegisters (Vue) { + /** + * Create asset registration methods. + */ + ASSET_TYPES.forEach(function (type) { + Vue[type] = function ( + id, + definition + ) { + if (!definition) { + return this.options[type + 's'][id] + } else { + /* istanbul ignore if */ + { + if (type === 'component' && config.isReservedTag(id)) { + warn( + 'Do not use built-in or reserved HTML elements as component ' + + 'id: ' + id + ); + } + } + if (type === 'component' && isPlainObject(definition)) { + definition.name = definition.name || id; + definition = this.options._base.extend(definition); + } + if (type === 'directive' && typeof definition === 'function') { + definition = { bind: definition, update: definition }; + } + this.options[type + 's'][id] = definition; + return definition + } + }; + }); +} + +/* */ + +var patternTypes = [String, RegExp, Array]; + +function getComponentName (opts) { + return opts && (opts.Ctor.options.name || opts.tag) +} + +function matches (pattern, name) { + if (Array.isArray(pattern)) { + return pattern.indexOf(name) > -1 + } else if (typeof pattern === 'string') { + return pattern.split(',').indexOf(name) > -1 + } else if (isRegExp(pattern)) { + return pattern.test(name) + } + /* istanbul ignore next */ + return false +} + +function pruneCache (cache, current, filter) { + for (var key in cache) { + var cachedNode = cache[key]; + if (cachedNode) { + var name = getComponentName(cachedNode.componentOptions); + if (name && !filter(name)) { + if (cachedNode !== current) { + pruneCacheEntry(cachedNode); + } + cache[key] = null; + } + } + } +} + +function pruneCacheEntry (vnode) { + if (vnode) { + vnode.componentInstance.$destroy(); + } +} + +var KeepAlive = { + name: 'keep-alive', + abstract: true, + + props: { + include: patternTypes, + exclude: patternTypes + }, + + created: function created () { + this.cache = Object.create(null); + }, + + destroyed: function destroyed () { + var this$1 = this; + + for (var key in this$1.cache) { + pruneCacheEntry(this$1.cache[key]); + } + }, + + watch: { + include: function include (val) { + pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); }); + }, + exclude: function exclude (val) { + pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); }); + } + }, + + render: function render () { + var vnode = getFirstComponentChild(this.$slots.default); + var componentOptions = vnode && vnode.componentOptions; + if (componentOptions) { + // check pattern + var name = getComponentName(componentOptions); + if (name && ( + (this.include && !matches(this.include, name)) || + (this.exclude && matches(this.exclude, name)) + )) { + return vnode + } + var key = vnode.key == null + // same constructor may get registered as different local components + // so cid alone is not enough (#3269) + ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '') + : vnode.key; + if (this.cache[key]) { + vnode.componentInstance = this.cache[key].componentInstance; + } else { + this.cache[key] = vnode; + } + vnode.data.keepAlive = true; + } + return vnode + } +}; + +var builtInComponents = { + KeepAlive: KeepAlive +}; + +/* */ + +function initGlobalAPI (Vue) { + // config + var configDef = {}; + configDef.get = function () { return config; }; + { + configDef.set = function () { + warn( + 'Do not replace the Vue.config object, set individual fields instead.' + ); + }; + } + Object.defineProperty(Vue, 'config', configDef); + + // exposed util methods. + // NOTE: these are not considered part of the public API - avoid relying on + // them unless you are aware of the risk. + Vue.util = { + warn: warn, + extend: extend, + mergeOptions: mergeOptions, + defineReactive: defineReactive$$1 + }; + + Vue.set = set; + Vue.delete = del; + Vue.nextTick = nextTick; + + Vue.options = Object.create(null); + ASSET_TYPES.forEach(function (type) { + Vue.options[type + 's'] = Object.create(null); + }); + + // this is used to identify the "base" constructor to extend all plain-object + // components with in Weex's multi-instance scenarios. + Vue.options._base = Vue; + + extend(Vue.options.components, builtInComponents); + + initUse(Vue); + initMixin$1(Vue); + initExtend(Vue); + initAssetRegisters(Vue); +} + +initGlobalAPI(Vue$3); + +Object.defineProperty(Vue$3.prototype, '$isServer', { + get: isServerRendering +}); + +Object.defineProperty(Vue$3.prototype, '$ssrContext', { + get: function get () { + /* istanbul ignore next */ + return this.$vnode && this.$vnode.ssrContext + } +}); + +Vue$3.version = '2.4.0'; + +/* */ + +// these are reserved for web because they are directly compiled away +// during template compilation +var isReservedAttr = makeMap('style,class'); + +// attributes that should be using props for binding +var acceptValue = makeMap('input,textarea,option,select'); +var mustUseProp = function (tag, type, attr) { + return ( + (attr === 'value' && acceptValue(tag)) && type !== 'button' || + (attr === 'selected' && tag === 'option') || + (attr === 'checked' && tag === 'input') || + (attr === 'muted' && tag === 'video') + ) +}; + +var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck'); + +var isBooleanAttr = makeMap( + 'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' + + 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' + + 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' + + 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' + + 'required,reversed,scoped,seamless,selected,sortable,translate,' + + 'truespeed,typemustmatch,visible' +); + +var xlinkNS = 'http://www.w3.org/1999/xlink'; + +var isXlink = function (name) { + return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink' +}; + +var getXlinkProp = function (name) { + return isXlink(name) ? name.slice(6, name.length) : '' +}; + +var isFalsyAttrValue = function (val) { + return val == null || val === false +}; + +/* */ + +function genClassForVnode (vnode) { + var data = vnode.data; + var parentNode = vnode; + var childNode = vnode; + while (isDef(childNode.componentInstance)) { + childNode = childNode.componentInstance._vnode; + if (childNode.data) { + data = mergeClassData(childNode.data, data); + } + } + while (isDef(parentNode = parentNode.parent)) { + if (parentNode.data) { + data = mergeClassData(data, parentNode.data); + } + } + return renderClass(data.staticClass, data.class) +} + +function mergeClassData (child, parent) { + return { + staticClass: concat(child.staticClass, parent.staticClass), + class: isDef(child.class) + ? [child.class, parent.class] + : parent.class + } +} + +function renderClass ( + staticClass, + dynamicClass +) { + if (isDef(staticClass) || isDef(dynamicClass)) { + return concat(staticClass, stringifyClass(dynamicClass)) + } + /* istanbul ignore next */ + return '' +} + +function concat (a, b) { + return a ? b ? (a + ' ' + b) : a : (b || '') +} + +function stringifyClass (value) { + if (Array.isArray(value)) { + return stringifyArray(value) + } + if (isObject(value)) { + return stringifyObject(value) + } + if (typeof value === 'string') { + return value + } + /* istanbul ignore next */ + return '' +} + +function stringifyArray (value) { + var res = ''; + var stringified; + for (var i = 0, l = value.length; i < l; i++) { + if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') { + if (res) { res += ' '; } + res += stringified; + } + } + return res +} + +function stringifyObject (value) { + var res = ''; + for (var key in value) { + if (value[key]) { + if (res) { res += ' '; } + res += key; + } + } + return res +} + +/* */ + +var namespaceMap = { + svg: 'http://www.w3.org/2000/svg', + math: 'http://www.w3.org/1998/Math/MathML' +}; + +var isHTMLTag = makeMap( + 'html,body,base,head,link,meta,style,title,' + + 'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' + + 'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' + + 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' + + 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' + + 'embed,object,param,source,canvas,script,noscript,del,ins,' + + 'caption,col,colgroup,table,thead,tbody,td,th,tr,' + + 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' + + 'output,progress,select,textarea,' + + 'details,dialog,menu,menuitem,summary,' + + 'content,element,shadow,template,blockquote,iframe,tfoot' +); + +// this map is intentionally selective, only covering SVG elements that may +// contain child elements. +var isSVG = makeMap( + 'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' + + 'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' + + 'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view', + true +); + +var isPreTag = function (tag) { return tag === 'pre'; }; + +var isReservedTag = function (tag) { + return isHTMLTag(tag) || isSVG(tag) +}; + +function getTagNamespace (tag) { + if (isSVG(tag)) { + return 'svg' + } + // basic support for MathML + // note it doesn't support other MathML elements being component roots + if (tag === 'math') { + return 'math' + } +} + +var unknownElementCache = Object.create(null); +function isUnknownElement (tag) { + /* istanbul ignore if */ + if (!inBrowser) { + return true + } + if (isReservedTag(tag)) { + return false + } + tag = tag.toLowerCase(); + /* istanbul ignore if */ + if (unknownElementCache[tag] != null) { + return unknownElementCache[tag] + } + var el = document.createElement(tag); + if (tag.indexOf('-') > -1) { + // http://stackoverflow.com/a/28210364/1070244 + return (unknownElementCache[tag] = ( + el.constructor === window.HTMLUnknownElement || + el.constructor === window.HTMLElement + )) + } else { + return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString())) + } +} + +/* */ + +/** + * Query an element selector if it's not an element already. + */ +function query (el) { + if (typeof el === 'string') { + var selected = document.querySelector(el); + if (!selected) { + "development" !== 'production' && warn( + 'Cannot find element: ' + el + ); + return document.createElement('div') + } + return selected + } else { + return el + } +} + +/* */ + +function createElement$1 (tagName, vnode) { + var elm = document.createElement(tagName); + if (tagName !== 'select') { + return elm + } + // false or null will remove the attribute but undefined will not + if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) { + elm.setAttribute('multiple', 'multiple'); + } + return elm +} + +function createElementNS (namespace, tagName) { + return document.createElementNS(namespaceMap[namespace], tagName) +} + +function createTextNode (text) { + return document.createTextNode(text) +} + +function createComment (text) { + return document.createComment(text) +} + +function insertBefore (parentNode, newNode, referenceNode) { + parentNode.insertBefore(newNode, referenceNode); +} + +function removeChild (node, child) { + node.removeChild(child); +} + +function appendChild (node, child) { + node.appendChild(child); +} + +function parentNode (node) { + return node.parentNode +} + +function nextSibling (node) { + return node.nextSibling +} + +function tagName (node) { + return node.tagName +} + +function setTextContent (node, text) { + node.textContent = text; +} + +function setAttribute (node, key, val) { + node.setAttribute(key, val); +} + + +var nodeOps = Object.freeze({ + createElement: createElement$1, + createElementNS: createElementNS, + createTextNode: createTextNode, + createComment: createComment, + insertBefore: insertBefore, + removeChild: removeChild, + appendChild: appendChild, + parentNode: parentNode, + nextSibling: nextSibling, + tagName: tagName, + setTextContent: setTextContent, + setAttribute: setAttribute +}); + +/* */ + +var ref = { + create: function create (_, vnode) { + registerRef(vnode); + }, + update: function update (oldVnode, vnode) { + if (oldVnode.data.ref !== vnode.data.ref) { + registerRef(oldVnode, true); + registerRef(vnode); + } + }, + destroy: function destroy (vnode) { + registerRef(vnode, true); + } +}; + +function registerRef (vnode, isRemoval) { + var key = vnode.data.ref; + if (!key) { return } + + var vm = vnode.context; + var ref = vnode.componentInstance || vnode.elm; + var refs = vm.$refs; + if (isRemoval) { + if (Array.isArray(refs[key])) { + remove(refs[key], ref); + } else if (refs[key] === ref) { + refs[key] = undefined; + } + } else { + if (vnode.data.refInFor) { + if (!Array.isArray(refs[key])) { + refs[key] = [ref]; + } else if (refs[key].indexOf(ref) < 0) { + // $flow-disable-line + refs[key].push(ref); + } + } else { + refs[key] = ref; + } + } +} + +/** + * Virtual DOM patching algorithm based on Snabbdom by + * Simon Friis Vindum (@paldepind) + * Licensed under the MIT License + * https://github.com/paldepind/snabbdom/blob/master/LICENSE + * + * modified by Evan You (@yyx990803) + * + +/* + * Not type-checking this because this file is perf-critical and the cost + * of making flow understand it is not worth it. + */ + +var emptyNode = new VNode('', {}, []); + +var hooks = ['create', 'activate', 'update', 'remove', 'destroy']; + +function sameVnode (a, b) { + return ( + a.key === b.key && ( + ( + a.tag === b.tag && + a.isComment === b.isComment && + isDef(a.data) === isDef(b.data) && + sameInputType(a, b) + ) || ( + isTrue(a.isAsyncPlaceholder) && + a.asyncFactory === b.asyncFactory && + isUndef(b.asyncFactory.error) + ) + ) + ) +} + +// Some browsers do not support dynamically changing type for <input> +// so they need to be treated as different nodes +function sameInputType (a, b) { + if (a.tag !== 'input') { return true } + var i; + var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type; + var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type; + return typeA === typeB +} + +function createKeyToOldIdx (children, beginIdx, endIdx) { + var i, key; + var map = {}; + for (i = beginIdx; i <= endIdx; ++i) { + key = children[i].key; + if (isDef(key)) { map[key] = i; } + } + return map +} + +function createPatchFunction (backend) { + var i, j; + var cbs = {}; + + var modules = backend.modules; + var nodeOps = backend.nodeOps; + + for (i = 0; i < hooks.length; ++i) { + cbs[hooks[i]] = []; + for (j = 0; j < modules.length; ++j) { + if (isDef(modules[j][hooks[i]])) { + cbs[hooks[i]].push(modules[j][hooks[i]]); + } + } + } + + function emptyNodeAt (elm) { + return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm) + } + + function createRmCb (childElm, listeners) { + function remove$$1 () { + if (--remove$$1.listeners === 0) { + removeNode(childElm); + } + } + remove$$1.listeners = listeners; + return remove$$1 + } + + function removeNode (el) { + var parent = nodeOps.parentNode(el); + // element may have already been removed due to v-html / v-text + if (isDef(parent)) { + nodeOps.removeChild(parent, el); + } + } + + var inPre = 0; + function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) { + vnode.isRootInsert = !nested; // for transition enter check + if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) { + return + } + + var data = vnode.data; + var children = vnode.children; + var tag = vnode.tag; + if (isDef(tag)) { + { + if (data && data.pre) { + inPre++; + } + if ( + !inPre && + !vnode.ns && + !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) && + config.isUnknownElement(tag) + ) { + warn( + 'Unknown custom element: <' + tag + '> - did you ' + + 'register the component correctly? For recursive components, ' + + 'make sure to provide the "name" option.', + vnode.context + ); + } + } + vnode.elm = vnode.ns + ? nodeOps.createElementNS(vnode.ns, tag) + : nodeOps.createElement(tag, vnode); + setScope(vnode); + + /* istanbul ignore if */ + { + createChildren(vnode, children, insertedVnodeQueue); + if (isDef(data)) { + invokeCreateHooks(vnode, insertedVnodeQueue); + } + insert(parentElm, vnode.elm, refElm); + } + + if ("development" !== 'production' && data && data.pre) { + inPre--; + } + } else if (isTrue(vnode.isComment)) { + vnode.elm = nodeOps.createComment(vnode.text); + insert(parentElm, vnode.elm, refElm); + } else { + vnode.elm = nodeOps.createTextNode(vnode.text); + insert(parentElm, vnode.elm, refElm); + } + } + + function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) { + var i = vnode.data; + if (isDef(i)) { + var isReactivated = isDef(vnode.componentInstance) && i.keepAlive; + if (isDef(i = i.hook) && isDef(i = i.init)) { + i(vnode, false /* hydrating */, parentElm, refElm); + } + // after calling the init hook, if the vnode is a child component + // it should've created a child instance and mounted it. the child + // component also has set the placeholder vnode's elm. + // in that case we can just return the element and be done. + if (isDef(vnode.componentInstance)) { + initComponent(vnode, insertedVnodeQueue); + if (isTrue(isReactivated)) { + reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm); + } + return true + } + } + } + + function initComponent (vnode, insertedVnodeQueue) { + if (isDef(vnode.data.pendingInsert)) { + insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert); + vnode.data.pendingInsert = null; + } + vnode.elm = vnode.componentInstance.$el; + if (isPatchable(vnode)) { + invokeCreateHooks(vnode, insertedVnodeQueue); + setScope(vnode); + } else { + // empty component root. + // skip all element-related modules except for ref (#3455) + registerRef(vnode); + // make sure to invoke the insert hook + insertedVnodeQueue.push(vnode); + } + } + + function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) { + var i; + // hack for #4339: a reactivated component with inner transition + // does not trigger because the inner node's created hooks are not called + // again. It's not ideal to involve module-specific logic in here but + // there doesn't seem to be a better way to do it. + var innerNode = vnode; + while (innerNode.componentInstance) { + innerNode = innerNode.componentInstance._vnode; + if (isDef(i = innerNode.data) && isDef(i = i.transition)) { + for (i = 0; i < cbs.activate.length; ++i) { + cbs.activate[i](emptyNode, innerNode); + } + insertedVnodeQueue.push(innerNode); + break + } + } + // unlike a newly created component, + // a reactivated keep-alive component doesn't insert itself + insert(parentElm, vnode.elm, refElm); + } + + function insert (parent, elm, ref$$1) { + if (isDef(parent)) { + if (isDef(ref$$1)) { + if (ref$$1.parentNode === parent) { + nodeOps.insertBefore(parent, elm, ref$$1); + } + } else { + nodeOps.appendChild(parent, elm); + } + } + } + + function createChildren (vnode, children, insertedVnodeQueue) { + if (Array.isArray(children)) { + for (var i = 0; i < children.length; ++i) { + createElm(children[i], insertedVnodeQueue, vnode.elm, null, true); + } + } else if (isPrimitive(vnode.text)) { + nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text)); + } + } + + function isPatchable (vnode) { + while (vnode.componentInstance) { + vnode = vnode.componentInstance._vnode; + } + return isDef(vnode.tag) + } + + function invokeCreateHooks (vnode, insertedVnodeQueue) { + for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) { + cbs.create[i$1](emptyNode, vnode); + } + i = vnode.data.hook; // Reuse variable + if (isDef(i)) { + if (isDef(i.create)) { i.create(emptyNode, vnode); } + if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); } + } + } + + // set scope id attribute for scoped CSS. + // this is implemented as a special case to avoid the overhead + // of going through the normal attribute patching process. + function setScope (vnode) { + var i; + var ancestor = vnode; + while (ancestor) { + if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) { + nodeOps.setAttribute(vnode.elm, i, ''); + } + ancestor = ancestor.parent; + } + // for slot content they should also get the scopeId from the host instance. + if (isDef(i = activeInstance) && + i !== vnode.context && + isDef(i = i.$options._scopeId) + ) { + nodeOps.setAttribute(vnode.elm, i, ''); + } + } + + function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) { + for (; startIdx <= endIdx; ++startIdx) { + createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm); + } + } + + function invokeDestroyHook (vnode) { + var i, j; + var data = vnode.data; + if (isDef(data)) { + if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); } + for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); } + } + if (isDef(i = vnode.children)) { + for (j = 0; j < vnode.children.length; ++j) { + invokeDestroyHook(vnode.children[j]); + } + } + } + + function removeVnodes (parentElm, vnodes, startIdx, endIdx) { + for (; startIdx <= endIdx; ++startIdx) { + var ch = vnodes[startIdx]; + if (isDef(ch)) { + if (isDef(ch.tag)) { + removeAndInvokeRemoveHook(ch); + invokeDestroyHook(ch); + } else { // Text node + removeNode(ch.elm); + } + } + } + } + + function removeAndInvokeRemoveHook (vnode, rm) { + if (isDef(rm) || isDef(vnode.data)) { + var i; + var listeners = cbs.remove.length + 1; + if (isDef(rm)) { + // we have a recursively passed down rm callback + // increase the listeners count + rm.listeners += listeners; + } else { + // directly removing + rm = createRmCb(vnode.elm, listeners); + } + // recursively invoke hooks on child component root node + if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) { + removeAndInvokeRemoveHook(i, rm); + } + for (i = 0; i < cbs.remove.length; ++i) { + cbs.remove[i](vnode, rm); + } + if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) { + i(vnode, rm); + } else { + rm(); + } + } else { + removeNode(vnode.elm); + } + } + + function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) { + var oldStartIdx = 0; + var newStartIdx = 0; + var oldEndIdx = oldCh.length - 1; + var oldStartVnode = oldCh[0]; + var oldEndVnode = oldCh[oldEndIdx]; + var newEndIdx = newCh.length - 1; + var newStartVnode = newCh[0]; + var newEndVnode = newCh[newEndIdx]; + var oldKeyToIdx, idxInOld, elmToMove, refElm; + + // removeOnly is a special flag used only by <transition-group> + // to ensure removed elements stay in correct relative positions + // during leaving transitions + var canMove = !removeOnly; + + while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) { + if (isUndef(oldStartVnode)) { + oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left + } else if (isUndef(oldEndVnode)) { + oldEndVnode = oldCh[--oldEndIdx]; + } else if (sameVnode(oldStartVnode, newStartVnode)) { + patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue); + oldStartVnode = oldCh[++oldStartIdx]; + newStartVnode = newCh[++newStartIdx]; + } else if (sameVnode(oldEndVnode, newEndVnode)) { + patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue); + oldEndVnode = oldCh[--oldEndIdx]; + newEndVnode = newCh[--newEndIdx]; + } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right + patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue); + canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm)); + oldStartVnode = oldCh[++oldStartIdx]; + newEndVnode = newCh[--newEndIdx]; + } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left + patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue); + canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm); + oldEndVnode = oldCh[--oldEndIdx]; + newStartVnode = newCh[++newStartIdx]; + } else { + if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); } + idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null; + if (isUndef(idxInOld)) { // New element + createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm); + newStartVnode = newCh[++newStartIdx]; + } else { + elmToMove = oldCh[idxInOld]; + /* istanbul ignore if */ + if ("development" !== 'production' && !elmToMove) { + warn( + 'It seems there are duplicate keys that is causing an update error. ' + + 'Make sure each v-for item has a unique key.' + ); + } + if (sameVnode(elmToMove, newStartVnode)) { + patchVnode(elmToMove, newStartVnode, insertedVnodeQueue); + oldCh[idxInOld] = undefined; + canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm); + newStartVnode = newCh[++newStartIdx]; + } else { + // same key but different element. treat as new element + createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm); + newStartVnode = newCh[++newStartIdx]; + } + } + } + } + if (oldStartIdx > oldEndIdx) { + refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm; + addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue); + } else if (newStartIdx > newEndIdx) { + removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx); + } + } + + function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) { + if (oldVnode === vnode) { + return + } + + var elm = vnode.elm = oldVnode.elm; + + if (isTrue(oldVnode.isAsyncPlaceholder)) { + if (isDef(vnode.asyncFactory.resolved)) { + hydrate(oldVnode.elm, vnode, insertedVnodeQueue); + } else { + vnode.isAsyncPlaceholder = true; + } + return + } + + // reuse element for static trees. + // note we only do this if the vnode is cloned - + // if the new node is not cloned it means the render functions have been + // reset by the hot-reload-api and we need to do a proper re-render. + if (isTrue(vnode.isStatic) && + isTrue(oldVnode.isStatic) && + vnode.key === oldVnode.key && + (isTrue(vnode.isCloned) || isTrue(vnode.isOnce)) + ) { + vnode.componentInstance = oldVnode.componentInstance; + return + } + + var i; + var data = vnode.data; + if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) { + i(oldVnode, vnode); + } + + var oldCh = oldVnode.children; + var ch = vnode.children; + if (isDef(data) && isPatchable(vnode)) { + for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); } + if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); } + } + if (isUndef(vnode.text)) { + if (isDef(oldCh) && isDef(ch)) { + if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); } + } else if (isDef(ch)) { + if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); } + addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue); + } else if (isDef(oldCh)) { + removeVnodes(elm, oldCh, 0, oldCh.length - 1); + } else if (isDef(oldVnode.text)) { + nodeOps.setTextContent(elm, ''); + } + } else if (oldVnode.text !== vnode.text) { + nodeOps.setTextContent(elm, vnode.text); + } + if (isDef(data)) { + if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); } + } + } + + function invokeInsertHook (vnode, queue, initial) { + // delay insert hooks for component root nodes, invoke them after the + // element is really inserted + if (isTrue(initial) && isDef(vnode.parent)) { + vnode.parent.data.pendingInsert = queue; + } else { + for (var i = 0; i < queue.length; ++i) { + queue[i].data.hook.insert(queue[i]); + } + } + } + + var bailed = false; + // list of modules that can skip create hook during hydration because they + // are already rendered on the client or has no need for initialization + var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key'); + + // Note: this is a browser-only function so we can assume elms are DOM nodes. + function hydrate (elm, vnode, insertedVnodeQueue) { + if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) { + vnode.elm = elm; + vnode.isAsyncPlaceholder = true; + return true + } + { + if (!assertNodeMatch(elm, vnode)) { + return false + } + } + vnode.elm = elm; + var tag = vnode.tag; + var data = vnode.data; + var children = vnode.children; + if (isDef(data)) { + if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); } + if (isDef(i = vnode.componentInstance)) { + // child component. it should have hydrated its own tree. + initComponent(vnode, insertedVnodeQueue); + return true + } + } + if (isDef(tag)) { + if (isDef(children)) { + // empty element, allow client to pick up and populate children + if (!elm.hasChildNodes()) { + createChildren(vnode, children, insertedVnodeQueue); + } else { + var childrenMatch = true; + var childNode = elm.firstChild; + for (var i$1 = 0; i$1 < children.length; i$1++) { + if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) { + childrenMatch = false; + break + } + childNode = childNode.nextSibling; + } + // if childNode is not null, it means the actual childNodes list is + // longer than the virtual children list. + if (!childrenMatch || childNode) { + if ("development" !== 'production' && + typeof console !== 'undefined' && + !bailed + ) { + bailed = true; + console.warn('Parent: ', elm); + console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children); + } + return false + } + } + } + if (isDef(data)) { + for (var key in data) { + if (!isRenderedModule(key)) { + invokeCreateHooks(vnode, insertedVnodeQueue); + break + } + } + } + } else if (elm.data !== vnode.text) { + elm.data = vnode.text; + } + return true + } + + function assertNodeMatch (node, vnode) { + if (isDef(vnode.tag)) { + return ( + vnode.tag.indexOf('vue-component') === 0 || + vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase()) + ) + } else { + return node.nodeType === (vnode.isComment ? 8 : 3) + } + } + + return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) { + if (isUndef(vnode)) { + if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); } + return + } + + var isInitialPatch = false; + var insertedVnodeQueue = []; + + if (isUndef(oldVnode)) { + // empty mount (likely as component), create new root element + isInitialPatch = true; + createElm(vnode, insertedVnodeQueue, parentElm, refElm); + } else { + var isRealElement = isDef(oldVnode.nodeType); + if (!isRealElement && sameVnode(oldVnode, vnode)) { + // patch existing root node + patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly); + } else { + if (isRealElement) { + // mounting to a real element + // check if this is server-rendered content and if we can perform + // a successful hydration. + if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) { + oldVnode.removeAttribute(SSR_ATTR); + hydrating = true; + } + if (isTrue(hydrating)) { + if (hydrate(oldVnode, vnode, insertedVnodeQueue)) { + invokeInsertHook(vnode, insertedVnodeQueue, true); + return oldVnode + } else { + warn( + 'The client-side rendered virtual DOM tree is not matching ' + + 'server-rendered content. This is likely caused by incorrect ' + + 'HTML markup, for example nesting block-level elements inside ' + + '<p>, or missing <tbody>. Bailing hydration and performing ' + + 'full client-side render.' + ); + } + } + // either not server-rendered, or hydration failed. + // create an empty node and replace it + oldVnode = emptyNodeAt(oldVnode); + } + // replacing existing element + var oldElm = oldVnode.elm; + var parentElm$1 = nodeOps.parentNode(oldElm); + createElm( + vnode, + insertedVnodeQueue, + // extremely rare edge case: do not insert if old element is in a + // leaving transition. Only happens when combining transition + + // keep-alive + HOCs. (#4590) + oldElm._leaveCb ? null : parentElm$1, + nodeOps.nextSibling(oldElm) + ); + + if (isDef(vnode.parent)) { + // component root element replaced. + // update parent placeholder node element, recursively + var ancestor = vnode.parent; + while (ancestor) { + ancestor.elm = vnode.elm; + ancestor = ancestor.parent; + } + if (isPatchable(vnode)) { + for (var i = 0; i < cbs.create.length; ++i) { + cbs.create[i](emptyNode, vnode.parent); + } + } + } + + if (isDef(parentElm$1)) { + removeVnodes(parentElm$1, [oldVnode], 0, 0); + } else if (isDef(oldVnode.tag)) { + invokeDestroyHook(oldVnode); + } + } + } + + invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch); + return vnode.elm + } +} + +/* */ + +var directives = { + create: updateDirectives, + update: updateDirectives, + destroy: function unbindDirectives (vnode) { + updateDirectives(vnode, emptyNode); + } +}; + +function updateDirectives (oldVnode, vnode) { + if (oldVnode.data.directives || vnode.data.directives) { + _update(oldVnode, vnode); + } +} + +function _update (oldVnode, vnode) { + var isCreate = oldVnode === emptyNode; + var isDestroy = vnode === emptyNode; + var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context); + var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context); + + var dirsWithInsert = []; + var dirsWithPostpatch = []; + + var key, oldDir, dir; + for (key in newDirs) { + oldDir = oldDirs[key]; + dir = newDirs[key]; + if (!oldDir) { + // new directive, bind + callHook$1(dir, 'bind', vnode, oldVnode); + if (dir.def && dir.def.inserted) { + dirsWithInsert.push(dir); + } + } else { + // existing directive, update + dir.oldValue = oldDir.value; + callHook$1(dir, 'update', vnode, oldVnode); + if (dir.def && dir.def.componentUpdated) { + dirsWithPostpatch.push(dir); + } + } + } + + if (dirsWithInsert.length) { + var callInsert = function () { + for (var i = 0; i < dirsWithInsert.length; i++) { + callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode); + } + }; + if (isCreate) { + mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert); + } else { + callInsert(); + } + } + + if (dirsWithPostpatch.length) { + mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () { + for (var i = 0; i < dirsWithPostpatch.length; i++) { + callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode); + } + }); + } + + if (!isCreate) { + for (key in oldDirs) { + if (!newDirs[key]) { + // no longer present, unbind + callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy); + } + } + } +} + +var emptyModifiers = Object.create(null); + +function normalizeDirectives$1 ( + dirs, + vm +) { + var res = Object.create(null); + if (!dirs) { + return res + } + var i, dir; + for (i = 0; i < dirs.length; i++) { + dir = dirs[i]; + if (!dir.modifiers) { + dir.modifiers = emptyModifiers; + } + res[getRawDirName(dir)] = dir; + dir.def = resolveAsset(vm.$options, 'directives', dir.name, true); + } + return res +} + +function getRawDirName (dir) { + return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.'))) +} + +function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) { + var fn = dir.def && dir.def[hook]; + if (fn) { + try { + fn(vnode.elm, dir, vnode, oldVnode, isDestroy); + } catch (e) { + handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook")); + } + } +} + +var baseModules = [ + ref, + directives +]; + +/* */ + +function updateAttrs (oldVnode, vnode) { + var opts = vnode.componentOptions; + if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) { + return + } + if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) { + return + } + var key, cur, old; + var elm = vnode.elm; + var oldAttrs = oldVnode.data.attrs || {}; + var attrs = vnode.data.attrs || {}; + // clone observed objects, as the user probably wants to mutate it + if (isDef(attrs.__ob__)) { + attrs = vnode.data.attrs = extend({}, attrs); + } + + for (key in attrs) { + cur = attrs[key]; + old = oldAttrs[key]; + if (old !== cur) { + setAttr(elm, key, cur); + } + } + // #4391: in IE9, setting type can reset value for input[type=radio] + /* istanbul ignore if */ + if (isIE9 && attrs.value !== oldAttrs.value) { + setAttr(elm, 'value', attrs.value); + } + for (key in oldAttrs) { + if (isUndef(attrs[key])) { + if (isXlink(key)) { + elm.removeAttributeNS(xlinkNS, getXlinkProp(key)); + } else if (!isEnumeratedAttr(key)) { + elm.removeAttribute(key); + } + } + } +} + +function setAttr (el, key, value) { + if (isBooleanAttr(key)) { + // set attribute for blank value + // e.g. <option disabled>Select one</option> + if (isFalsyAttrValue(value)) { + el.removeAttribute(key); + } else { + el.setAttribute(key, key); + } + } else if (isEnumeratedAttr(key)) { + el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true'); + } else if (isXlink(key)) { + if (isFalsyAttrValue(value)) { + el.removeAttributeNS(xlinkNS, getXlinkProp(key)); + } else { + el.setAttributeNS(xlinkNS, key, value); + } + } else { + if (isFalsyAttrValue(value)) { + el.removeAttribute(key); + } else { + el.setAttribute(key, value); + } + } +} + +var attrs = { + create: updateAttrs, + update: updateAttrs +}; + +/* */ + +function updateClass (oldVnode, vnode) { + var el = vnode.elm; + var data = vnode.data; + var oldData = oldVnode.data; + if ( + isUndef(data.staticClass) && + isUndef(data.class) && ( + isUndef(oldData) || ( + isUndef(oldData.staticClass) && + isUndef(oldData.class) + ) + ) + ) { + return + } + + var cls = genClassForVnode(vnode); + + // handle transition classes + var transitionClass = el._transitionClasses; + if (isDef(transitionClass)) { + cls = concat(cls, stringifyClass(transitionClass)); + } + + // set the class + if (cls !== el._prevClass) { + el.setAttribute('class', cls); + el._prevClass = cls; + } +} + +var klass = { + create: updateClass, + update: updateClass +}; + +/* */ + +var validDivisionCharRE = /[\w).+\-_$\]]/; + +function parseFilters (exp) { + var inSingle = false; + var inDouble = false; + var inTemplateString = false; + var inRegex = false; + var curly = 0; + var square = 0; + var paren = 0; + var lastFilterIndex = 0; + var c, prev, i, expression, filters; + + for (i = 0; i < exp.length; i++) { + prev = c; + c = exp.charCodeAt(i); + if (inSingle) { + if (c === 0x27 && prev !== 0x5C) { inSingle = false; } + } else if (inDouble) { + if (c === 0x22 && prev !== 0x5C) { inDouble = false; } + } else if (inTemplateString) { + if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; } + } else if (inRegex) { + if (c === 0x2f && prev !== 0x5C) { inRegex = false; } + } else if ( + c === 0x7C && // pipe + exp.charCodeAt(i + 1) !== 0x7C && + exp.charCodeAt(i - 1) !== 0x7C && + !curly && !square && !paren + ) { + if (expression === undefined) { + // first filter, end of expression + lastFilterIndex = i + 1; + expression = exp.slice(0, i).trim(); + } else { + pushFilter(); + } + } else { + switch (c) { + case 0x22: inDouble = true; break // " + case 0x27: inSingle = true; break // ' + case 0x60: inTemplateString = true; break // ` + case 0x28: paren++; break // ( + case 0x29: paren--; break // ) + case 0x5B: square++; break // [ + case 0x5D: square--; break // ] + case 0x7B: curly++; break // { + case 0x7D: curly--; break // } + } + if (c === 0x2f) { // / + var j = i - 1; + var p = (void 0); + // find first non-whitespace prev char + for (; j >= 0; j--) { + p = exp.charAt(j); + if (p !== ' ') { break } + } + if (!p || !validDivisionCharRE.test(p)) { + inRegex = true; + } + } + } + } + + if (expression === undefined) { + expression = exp.slice(0, i).trim(); + } else if (lastFilterIndex !== 0) { + pushFilter(); + } + + function pushFilter () { + (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim()); + lastFilterIndex = i + 1; + } + + if (filters) { + for (i = 0; i < filters.length; i++) { + expression = wrapFilter(expression, filters[i]); + } + } + + return expression +} + +function wrapFilter (exp, filter) { + var i = filter.indexOf('('); + if (i < 0) { + // _f: resolveFilter + return ("_f(\"" + filter + "\")(" + exp + ")") + } else { + var name = filter.slice(0, i); + var args = filter.slice(i + 1); + return ("_f(\"" + name + "\")(" + exp + "," + args) + } +} + +/* */ + +function baseWarn (msg) { + console.error(("[Vue compiler]: " + msg)); +} + +function pluckModuleFunction ( + modules, + key +) { + return modules + ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; }) + : [] +} + +function addProp (el, name, value) { + (el.props || (el.props = [])).push({ name: name, value: value }); +} + +function addAttr (el, name, value) { + (el.attrs || (el.attrs = [])).push({ name: name, value: value }); +} + +function addDirective ( + el, + name, + rawName, + value, + arg, + modifiers +) { + (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }); +} + +function addHandler ( + el, + name, + value, + modifiers, + important, + warn +) { + // warn prevent and passive modifier + /* istanbul ignore if */ + if ( + "development" !== 'production' && warn && + modifiers && modifiers.prevent && modifiers.passive + ) { + warn( + 'passive and prevent can\'t be used together. ' + + 'Passive handler can\'t prevent default event.' + ); + } + // check capture modifier + if (modifiers && modifiers.capture) { + delete modifiers.capture; + name = '!' + name; // mark the event as captured + } + if (modifiers && modifiers.once) { + delete modifiers.once; + name = '~' + name; // mark the event as once + } + /* istanbul ignore if */ + if (modifiers && modifiers.passive) { + delete modifiers.passive; + name = '&' + name; // mark the event as passive + } + var events; + if (modifiers && modifiers.native) { + delete modifiers.native; + events = el.nativeEvents || (el.nativeEvents = {}); + } else { + events = el.events || (el.events = {}); + } + var newHandler = { value: value, modifiers: modifiers }; + var handlers = events[name]; + /* istanbul ignore if */ + if (Array.isArray(handlers)) { + important ? handlers.unshift(newHandler) : handlers.push(newHandler); + } else if (handlers) { + events[name] = important ? [newHandler, handlers] : [handlers, newHandler]; + } else { + events[name] = newHandler; + } +} + +function getBindingAttr ( + el, + name, + getStatic +) { + var dynamicValue = + getAndRemoveAttr(el, ':' + name) || + getAndRemoveAttr(el, 'v-bind:' + name); + if (dynamicValue != null) { + return parseFilters(dynamicValue) + } else if (getStatic !== false) { + var staticValue = getAndRemoveAttr(el, name); + if (staticValue != null) { + return JSON.stringify(staticValue) + } + } +} + +function getAndRemoveAttr (el, name) { + var val; + if ((val = el.attrsMap[name]) != null) { + var list = el.attrsList; + for (var i = 0, l = list.length; i < l; i++) { + if (list[i].name === name) { + list.splice(i, 1); + break + } + } + } + return val +} + +/* */ + +/** + * Cross-platform code generation for component v-model + */ +function genComponentModel ( + el, + value, + modifiers +) { + var ref = modifiers || {}; + var number = ref.number; + var trim = ref.trim; + + var baseValueExpression = '$$v'; + var valueExpression = baseValueExpression; + if (trim) { + valueExpression = + "(typeof " + baseValueExpression + " === 'string'" + + "? " + baseValueExpression + ".trim()" + + ": " + baseValueExpression + ")"; + } + if (number) { + valueExpression = "_n(" + valueExpression + ")"; + } + var assignment = genAssignmentCode(value, valueExpression); + + el.model = { + value: ("(" + value + ")"), + expression: ("\"" + value + "\""), + callback: ("function (" + baseValueExpression + ") {" + assignment + "}") + }; +} + +/** + * Cross-platform codegen helper for generating v-model value assignment code. + */ +function genAssignmentCode ( + value, + assignment +) { + var modelRs = parseModel(value); + if (modelRs.idx === null) { + return (value + "=" + assignment) + } else { + return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")") + } +} + +/** + * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val) + * + * for loop possible cases: + * + * - test + * - test[idx] + * - test[test1[idx]] + * - test["a"][idx] + * - xxx.test[a[a].test1[idx]] + * - test.xxx.a["asa"][test1[idx]] + * + */ + +var len; +var str; +var chr; +var index$1; +var expressionPos; +var expressionEndPos; + +function parseModel (val) { + str = val; + len = str.length; + index$1 = expressionPos = expressionEndPos = 0; + + if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) { + return { + exp: val, + idx: null + } + } + + while (!eof()) { + chr = next(); + /* istanbul ignore if */ + if (isStringStart(chr)) { + parseString(chr); + } else if (chr === 0x5B) { + parseBracket(chr); + } + } + + return { + exp: val.substring(0, expressionPos), + idx: val.substring(expressionPos + 1, expressionEndPos) + } +} + +function next () { + return str.charCodeAt(++index$1) +} + +function eof () { + return index$1 >= len +} + +function isStringStart (chr) { + return chr === 0x22 || chr === 0x27 +} + +function parseBracket (chr) { + var inBracket = 1; + expressionPos = index$1; + while (!eof()) { + chr = next(); + if (isStringStart(chr)) { + parseString(chr); + continue + } + if (chr === 0x5B) { inBracket++; } + if (chr === 0x5D) { inBracket--; } + if (inBracket === 0) { + expressionEndPos = index$1; + break + } + } +} + +function parseString (chr) { + var stringQuote = chr; + while (!eof()) { + chr = next(); + if (chr === stringQuote) { + break + } + } +} + +/* */ + +var warn$1; + +// in some cases, the event used has to be determined at runtime +// so we used some reserved tokens during compile. +var RANGE_TOKEN = '__r'; +var CHECKBOX_RADIO_TOKEN = '__c'; + +function model ( + el, + dir, + _warn +) { + warn$1 = _warn; + var value = dir.value; + var modifiers = dir.modifiers; + var tag = el.tag; + var type = el.attrsMap.type; + + { + var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type']; + if (tag === 'input' && dynamicType) { + warn$1( + "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" + + "v-model does not support dynamic input types. Use v-if branches instead." + ); + } + // inputs with type="file" are read only and setting the input's + // value will throw an error. + if (tag === 'input' && type === 'file') { + warn$1( + "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" + + "File inputs are read only. Use a v-on:change listener instead." + ); + } + } + + if (el.component) { + genComponentModel(el, value, modifiers); + // component v-model doesn't need extra runtime + return false + } else if (tag === 'select') { + genSelect(el, value, modifiers); + } else if (tag === 'input' && type === 'checkbox') { + genCheckboxModel(el, value, modifiers); + } else if (tag === 'input' && type === 'radio') { + genRadioModel(el, value, modifiers); + } else if (tag === 'input' || tag === 'textarea') { + genDefaultModel(el, value, modifiers); + } else if (!config.isReservedTag(tag)) { + genComponentModel(el, value, modifiers); + // component v-model doesn't need extra runtime + return false + } else { + warn$1( + "<" + (el.tag) + " v-model=\"" + value + "\">: " + + "v-model is not supported on this element type. " + + 'If you are working with contenteditable, it\'s recommended to ' + + 'wrap a library dedicated for that purpose inside a custom component.' + ); + } + + // ensure runtime directive metadata + return true +} + +function genCheckboxModel ( + el, + value, + modifiers +) { + var number = modifiers && modifiers.number; + var valueBinding = getBindingAttr(el, 'value') || 'null'; + var trueValueBinding = getBindingAttr(el, 'true-value') || 'true'; + var falseValueBinding = getBindingAttr(el, 'false-value') || 'false'; + addProp(el, 'checked', + "Array.isArray(" + value + ")" + + "?_i(" + value + "," + valueBinding + ")>-1" + ( + trueValueBinding === 'true' + ? (":(" + value + ")") + : (":_q(" + value + "," + trueValueBinding + ")") + ) + ); + addHandler(el, CHECKBOX_RADIO_TOKEN, + "var $$a=" + value + "," + + '$$el=$event.target,' + + "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" + + 'if(Array.isArray($$a)){' + + "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," + + '$$i=_i($$a,$$v);' + + "if($$c){$$i<0&&(" + value + "=$$a.concat($$v))}" + + "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" + + "}else{" + (genAssignmentCode(value, '$$c')) + "}", + null, true + ); +} + +function genRadioModel ( + el, + value, + modifiers +) { + var number = modifiers && modifiers.number; + var valueBinding = getBindingAttr(el, 'value') || 'null'; + valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding; + addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")")); + addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true); +} + +function genSelect ( + el, + value, + modifiers +) { + var number = modifiers && modifiers.number; + var selectedVal = "Array.prototype.filter" + + ".call($event.target.options,function(o){return o.selected})" + + ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" + + "return " + (number ? '_n(val)' : 'val') + "})"; + + var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]'; + var code = "var $$selectedVal = " + selectedVal + ";"; + code = code + " " + (genAssignmentCode(value, assignment)); + addHandler(el, 'change', code, null, true); +} + +function genDefaultModel ( + el, + value, + modifiers +) { + var type = el.attrsMap.type; + var ref = modifiers || {}; + var lazy = ref.lazy; + var number = ref.number; + var trim = ref.trim; + var needCompositionGuard = !lazy && type !== 'range'; + var event = lazy + ? 'change' + : type === 'range' + ? RANGE_TOKEN + : 'input'; + + var valueExpression = '$event.target.value'; + if (trim) { + valueExpression = "$event.target.value.trim()"; + } + if (number) { + valueExpression = "_n(" + valueExpression + ")"; + } + + var code = genAssignmentCode(value, valueExpression); + if (needCompositionGuard) { + code = "if($event.target.composing)return;" + code; + } + + addProp(el, 'value', ("(" + value + ")")); + addHandler(el, event, code, null, true); + if (trim || number) { + addHandler(el, 'blur', '$forceUpdate()'); + } +} + +/* */ + +// normalize v-model event tokens that can only be determined at runtime. +// it's important to place the event as the first in the array because +// the whole point is ensuring the v-model callback gets called before +// user-attached handlers. +function normalizeEvents (on) { + var event; + /* istanbul ignore if */ + if (isDef(on[RANGE_TOKEN])) { + // IE input[type=range] only supports `change` event + event = isIE ? 'change' : 'input'; + on[event] = [].concat(on[RANGE_TOKEN], on[event] || []); + delete on[RANGE_TOKEN]; + } + if (isDef(on[CHECKBOX_RADIO_TOKEN])) { + // Chrome fires microtasks in between click/change, leads to #4521 + event = isChrome ? 'click' : 'change'; + on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []); + delete on[CHECKBOX_RADIO_TOKEN]; + } +} + +var target$1; + +function add$1 ( + event, + handler, + once$$1, + capture, + passive +) { + if (once$$1) { + var oldHandler = handler; + var _target = target$1; // save current target element in closure + handler = function (ev) { + var res = arguments.length === 1 + ? oldHandler(ev) + : oldHandler.apply(null, arguments); + if (res !== null) { + remove$2(event, handler, capture, _target); + } + }; + } + target$1.addEventListener( + event, + handler, + supportsPassive + ? { capture: capture, passive: passive } + : capture + ); +} + +function remove$2 ( + event, + handler, + capture, + _target +) { + (_target || target$1).removeEventListener(event, handler, capture); +} + +function updateDOMListeners (oldVnode, vnode) { + var isComponentRoot = isDef(vnode.componentOptions); + var oldOn = isComponentRoot ? oldVnode.data.nativeOn : oldVnode.data.on; + var on = isComponentRoot ? vnode.data.nativeOn : vnode.data.on; + if (isUndef(oldOn) && isUndef(on)) { + return + } + on = on || {}; + oldOn = oldOn || {}; + target$1 = vnode.elm; + normalizeEvents(on); + updateListeners(on, oldOn, add$1, remove$2, vnode.context); +} + +var events = { + create: updateDOMListeners, + update: updateDOMListeners +}; + +/* */ + +function updateDOMProps (oldVnode, vnode) { + if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) { + return + } + var key, cur; + var elm = vnode.elm; + var oldProps = oldVnode.data.domProps || {}; + var props = vnode.data.domProps || {}; + // clone observed objects, as the user probably wants to mutate it + if (isDef(props.__ob__)) { + props = vnode.data.domProps = extend({}, props); + } + + for (key in oldProps) { + if (isUndef(props[key])) { + elm[key] = ''; + } + } + for (key in props) { + cur = props[key]; + // ignore children if the node has textContent or innerHTML, + // as these will throw away existing DOM nodes and cause removal errors + // on subsequent patches (#3360) + if (key === 'textContent' || key === 'innerHTML') { + if (vnode.children) { vnode.children.length = 0; } + if (cur === oldProps[key]) { continue } + } + + if (key === 'value') { + // store value as _value as well since + // non-string values will be stringified + elm._value = cur; + // avoid resetting cursor position when value is the same + var strCur = isUndef(cur) ? '' : String(cur); + if (shouldUpdateValue(elm, vnode, strCur)) { + elm.value = strCur; + } + } else { + elm[key] = cur; + } + } +} + +// check platforms/web/util/attrs.js acceptValue + + +function shouldUpdateValue ( + elm, + vnode, + checkVal +) { + return (!elm.composing && ( + vnode.tag === 'option' || + isDirty(elm, checkVal) || + isInputChanged(elm, checkVal) + )) +} + +function isDirty (elm, checkVal) { + // return true when textbox (.number and .trim) loses focus and its value is + // not equal to the updated value + return document.activeElement !== elm && elm.value !== checkVal +} + +function isInputChanged (elm, newVal) { + var value = elm.value; + var modifiers = elm._vModifiers; // injected by v-model runtime + if (isDef(modifiers) && modifiers.number) { + return toNumber(value) !== toNumber(newVal) + } + if (isDef(modifiers) && modifiers.trim) { + return value.trim() !== newVal.trim() + } + return value !== newVal +} + +var domProps = { + create: updateDOMProps, + update: updateDOMProps +}; + +/* */ + +var parseStyleText = cached(function (cssText) { + var res = {}; + var listDelimiter = /;(?![^(]*\))/g; + var propertyDelimiter = /:(.+)/; + cssText.split(listDelimiter).forEach(function (item) { + if (item) { + var tmp = item.split(propertyDelimiter); + tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim()); + } + }); + return res +}); + +// merge static and dynamic style data on the same vnode +function normalizeStyleData (data) { + var style = normalizeStyleBinding(data.style); + // static style is pre-processed into an object during compilation + // and is always a fresh object, so it's safe to merge into it + return data.staticStyle + ? extend(data.staticStyle, style) + : style +} + +// normalize possible array / string values into Object +function normalizeStyleBinding (bindingStyle) { + if (Array.isArray(bindingStyle)) { + return toObject(bindingStyle) + } + if (typeof bindingStyle === 'string') { + return parseStyleText(bindingStyle) + } + return bindingStyle +} + +/** + * parent component style should be after child's + * so that parent component's style could override it + */ +function getStyle (vnode, checkChild) { + var res = {}; + var styleData; + + if (checkChild) { + var childNode = vnode; + while (childNode.componentInstance) { + childNode = childNode.componentInstance._vnode; + if (childNode.data && (styleData = normalizeStyleData(childNode.data))) { + extend(res, styleData); + } + } + } + + if ((styleData = normalizeStyleData(vnode.data))) { + extend(res, styleData); + } + + var parentNode = vnode; + while ((parentNode = parentNode.parent)) { + if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) { + extend(res, styleData); + } + } + return res +} + +/* */ + +var cssVarRE = /^--/; +var importantRE = /\s*!important$/; +var setProp = function (el, name, val) { + /* istanbul ignore if */ + if (cssVarRE.test(name)) { + el.style.setProperty(name, val); + } else if (importantRE.test(val)) { + el.style.setProperty(name, val.replace(importantRE, ''), 'important'); + } else { + var normalizedName = normalize(name); + if (Array.isArray(val)) { + // Support values array created by autoprefixer, e.g. + // {display: ["-webkit-box", "-ms-flexbox", "flex"]} + // Set them one by one, and the browser will only set those it can recognize + for (var i = 0, len = val.length; i < len; i++) { + el.style[normalizedName] = val[i]; + } + } else { + el.style[normalizedName] = val; + } + } +}; + +var vendorNames = ['Webkit', 'Moz', 'ms']; + +var emptyStyle; +var normalize = cached(function (prop) { + emptyStyle = emptyStyle || document.createElement('div').style; + prop = camelize(prop); + if (prop !== 'filter' && (prop in emptyStyle)) { + return prop + } + var capName = prop.charAt(0).toUpperCase() + prop.slice(1); + for (var i = 0; i < vendorNames.length; i++) { + var name = vendorNames[i] + capName; + if (name in emptyStyle) { + return name + } + } +}); + +function updateStyle (oldVnode, vnode) { + var data = vnode.data; + var oldData = oldVnode.data; + + if (isUndef(data.staticStyle) && isUndef(data.style) && + isUndef(oldData.staticStyle) && isUndef(oldData.style) + ) { + return + } + + var cur, name; + var el = vnode.elm; + var oldStaticStyle = oldData.staticStyle; + var oldStyleBinding = oldData.normalizedStyle || oldData.style || {}; + + // if static style exists, stylebinding already merged into it when doing normalizeStyleData + var oldStyle = oldStaticStyle || oldStyleBinding; + + var style = normalizeStyleBinding(vnode.data.style) || {}; + + // store normalized style under a different key for next diff + // make sure to clone it if it's reactive, since the user likley wants + // to mutate it. + vnode.data.normalizedStyle = isDef(style.__ob__) + ? extend({}, style) + : style; + + var newStyle = getStyle(vnode, true); + + for (name in oldStyle) { + if (isUndef(newStyle[name])) { + setProp(el, name, ''); + } + } + for (name in newStyle) { + cur = newStyle[name]; + if (cur !== oldStyle[name]) { + // ie9 setting to null has no effect, must use empty string + setProp(el, name, cur == null ? '' : cur); + } + } +} + +var style = { + create: updateStyle, + update: updateStyle +}; + +/* */ + +/** + * Add class with compatibility for SVG since classList is not supported on + * SVG elements in IE + */ +function addClass (el, cls) { + /* istanbul ignore if */ + if (!cls || !(cls = cls.trim())) { + return + } + + /* istanbul ignore else */ + if (el.classList) { + if (cls.indexOf(' ') > -1) { + cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); }); + } else { + el.classList.add(cls); + } + } else { + var cur = " " + (el.getAttribute('class') || '') + " "; + if (cur.indexOf(' ' + cls + ' ') < 0) { + el.setAttribute('class', (cur + cls).trim()); + } + } +} + +/** + * Remove class with compatibility for SVG since classList is not supported on + * SVG elements in IE + */ +function removeClass (el, cls) { + /* istanbul ignore if */ + if (!cls || !(cls = cls.trim())) { + return + } + + /* istanbul ignore else */ + if (el.classList) { + if (cls.indexOf(' ') > -1) { + cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); }); + } else { + el.classList.remove(cls); + } + if (!el.classList.length) { + el.removeAttribute('class'); + } + } else { + var cur = " " + (el.getAttribute('class') || '') + " "; + var tar = ' ' + cls + ' '; + while (cur.indexOf(tar) >= 0) { + cur = cur.replace(tar, ' '); + } + cur = cur.trim(); + if (cur) { + el.setAttribute('class', cur); + } else { + el.removeAttribute('class'); + } + } +} + +/* */ + +function resolveTransition (def$$1) { + if (!def$$1) { + return + } + /* istanbul ignore else */ + if (typeof def$$1 === 'object') { + var res = {}; + if (def$$1.css !== false) { + extend(res, autoCssTransition(def$$1.name || 'v')); + } + extend(res, def$$1); + return res + } else if (typeof def$$1 === 'string') { + return autoCssTransition(def$$1) + } +} + +var autoCssTransition = cached(function (name) { + return { + enterClass: (name + "-enter"), + enterToClass: (name + "-enter-to"), + enterActiveClass: (name + "-enter-active"), + leaveClass: (name + "-leave"), + leaveToClass: (name + "-leave-to"), + leaveActiveClass: (name + "-leave-active") + } +}); + +var hasTransition = inBrowser && !isIE9; +var TRANSITION = 'transition'; +var ANIMATION = 'animation'; + +// Transition property/event sniffing +var transitionProp = 'transition'; +var transitionEndEvent = 'transitionend'; +var animationProp = 'animation'; +var animationEndEvent = 'animationend'; +if (hasTransition) { + /* istanbul ignore if */ + if (window.ontransitionend === undefined && + window.onwebkittransitionend !== undefined + ) { + transitionProp = 'WebkitTransition'; + transitionEndEvent = 'webkitTransitionEnd'; + } + if (window.onanimationend === undefined && + window.onwebkitanimationend !== undefined + ) { + animationProp = 'WebkitAnimation'; + animationEndEvent = 'webkitAnimationEnd'; + } +} + +// binding to window is necessary to make hot reload work in IE in strict mode +var raf = inBrowser && window.requestAnimationFrame + ? window.requestAnimationFrame.bind(window) + : setTimeout; + +function nextFrame (fn) { + raf(function () { + raf(fn); + }); +} + +function addTransitionClass (el, cls) { + var transitionClasses = el._transitionClasses || (el._transitionClasses = []); + if (transitionClasses.indexOf(cls) < 0) { + transitionClasses.push(cls); + addClass(el, cls); + } +} + +function removeTransitionClass (el, cls) { + if (el._transitionClasses) { + remove(el._transitionClasses, cls); + } + removeClass(el, cls); +} + +function whenTransitionEnds ( + el, + expectedType, + cb +) { + var ref = getTransitionInfo(el, expectedType); + var type = ref.type; + var timeout = ref.timeout; + var propCount = ref.propCount; + if (!type) { return cb() } + var event = type === TRANSITION ? transitionEndEvent : animationEndEvent; + var ended = 0; + var end = function () { + el.removeEventListener(event, onEnd); + cb(); + }; + var onEnd = function (e) { + if (e.target === el) { + if (++ended >= propCount) { + end(); + } + } + }; + setTimeout(function () { + if (ended < propCount) { + end(); + } + }, timeout + 1); + el.addEventListener(event, onEnd); +} + +var transformRE = /\b(transform|all)(,|$)/; + +function getTransitionInfo (el, expectedType) { + var styles = window.getComputedStyle(el); + var transitionDelays = styles[transitionProp + 'Delay'].split(', '); + var transitionDurations = styles[transitionProp + 'Duration'].split(', '); + var transitionTimeout = getTimeout(transitionDelays, transitionDurations); + var animationDelays = styles[animationProp + 'Delay'].split(', '); + var animationDurations = styles[animationProp + 'Duration'].split(', '); + var animationTimeout = getTimeout(animationDelays, animationDurations); + + var type; + var timeout = 0; + var propCount = 0; + /* istanbul ignore if */ + if (expectedType === TRANSITION) { + if (transitionTimeout > 0) { + type = TRANSITION; + timeout = transitionTimeout; + propCount = transitionDurations.length; + } + } else if (expectedType === ANIMATION) { + if (animationTimeout > 0) { + type = ANIMATION; + timeout = animationTimeout; + propCount = animationDurations.length; + } + } else { + timeout = Math.max(transitionTimeout, animationTimeout); + type = timeout > 0 + ? transitionTimeout > animationTimeout + ? TRANSITION + : ANIMATION + : null; + propCount = type + ? type === TRANSITION + ? transitionDurations.length + : animationDurations.length + : 0; + } + var hasTransform = + type === TRANSITION && + transformRE.test(styles[transitionProp + 'Property']); + return { + type: type, + timeout: timeout, + propCount: propCount, + hasTransform: hasTransform + } +} + +function getTimeout (delays, durations) { + /* istanbul ignore next */ + while (delays.length < durations.length) { + delays = delays.concat(delays); + } + + return Math.max.apply(null, durations.map(function (d, i) { + return toMs(d) + toMs(delays[i]) + })) +} + +function toMs (s) { + return Number(s.slice(0, -1)) * 1000 +} + +/* */ + +function enter (vnode, toggleDisplay) { + var el = vnode.elm; + + // call leave callback now + if (isDef(el._leaveCb)) { + el._leaveCb.cancelled = true; + el._leaveCb(); + } + + var data = resolveTransition(vnode.data.transition); + if (isUndef(data)) { + return + } + + /* istanbul ignore if */ + if (isDef(el._enterCb) || el.nodeType !== 1) { + return + } + + var css = data.css; + var type = data.type; + var enterClass = data.enterClass; + var enterToClass = data.enterToClass; + var enterActiveClass = data.enterActiveClass; + var appearClass = data.appearClass; + var appearToClass = data.appearToClass; + var appearActiveClass = data.appearActiveClass; + var beforeEnter = data.beforeEnter; + var enter = data.enter; + var afterEnter = data.afterEnter; + var enterCancelled = data.enterCancelled; + var beforeAppear = data.beforeAppear; + var appear = data.appear; + var afterAppear = data.afterAppear; + var appearCancelled = data.appearCancelled; + var duration = data.duration; + + // activeInstance will always be the <transition> component managing this + // transition. One edge case to check is when the <transition> is placed + // as the root node of a child component. In that case we need to check + // <transition>'s parent for appear check. + var context = activeInstance; + var transitionNode = activeInstance.$vnode; + while (transitionNode && transitionNode.parent) { + transitionNode = transitionNode.parent; + context = transitionNode.context; + } + + var isAppear = !context._isMounted || !vnode.isRootInsert; + + if (isAppear && !appear && appear !== '') { + return + } + + var startClass = isAppear && appearClass + ? appearClass + : enterClass; + var activeClass = isAppear && appearActiveClass + ? appearActiveClass + : enterActiveClass; + var toClass = isAppear && appearToClass + ? appearToClass + : enterToClass; + + var beforeEnterHook = isAppear + ? (beforeAppear || beforeEnter) + : beforeEnter; + var enterHook = isAppear + ? (typeof appear === 'function' ? appear : enter) + : enter; + var afterEnterHook = isAppear + ? (afterAppear || afterEnter) + : afterEnter; + var enterCancelledHook = isAppear + ? (appearCancelled || enterCancelled) + : enterCancelled; + + var explicitEnterDuration = toNumber( + isObject(duration) + ? duration.enter + : duration + ); + + if ("development" !== 'production' && explicitEnterDuration != null) { + checkDuration(explicitEnterDuration, 'enter', vnode); + } + + var expectsCSS = css !== false && !isIE9; + var userWantsControl = getHookArgumentsLength(enterHook); + + var cb = el._enterCb = once(function () { + if (expectsCSS) { + removeTransitionClass(el, toClass); + removeTransitionClass(el, activeClass); + } + if (cb.cancelled) { + if (expectsCSS) { + removeTransitionClass(el, startClass); + } + enterCancelledHook && enterCancelledHook(el); + } else { + afterEnterHook && afterEnterHook(el); + } + el._enterCb = null; + }); + + if (!vnode.data.show) { + // remove pending leave element on enter by injecting an insert hook + mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () { + var parent = el.parentNode; + var pendingNode = parent && parent._pending && parent._pending[vnode.key]; + if (pendingNode && + pendingNode.tag === vnode.tag && + pendingNode.elm._leaveCb + ) { + pendingNode.elm._leaveCb(); + } + enterHook && enterHook(el, cb); + }); + } + + // start enter transition + beforeEnterHook && beforeEnterHook(el); + if (expectsCSS) { + addTransitionClass(el, startClass); + addTransitionClass(el, activeClass); + nextFrame(function () { + addTransitionClass(el, toClass); + removeTransitionClass(el, startClass); + if (!cb.cancelled && !userWantsControl) { + if (isValidDuration(explicitEnterDuration)) { + setTimeout(cb, explicitEnterDuration); + } else { + whenTransitionEnds(el, type, cb); + } + } + }); + } + + if (vnode.data.show) { + toggleDisplay && toggleDisplay(); + enterHook && enterHook(el, cb); + } + + if (!expectsCSS && !userWantsControl) { + cb(); + } +} + +function leave (vnode, rm) { + var el = vnode.elm; + + // call enter callback now + if (isDef(el._enterCb)) { + el._enterCb.cancelled = true; + el._enterCb(); + } + + var data = resolveTransition(vnode.data.transition); + if (isUndef(data)) { + return rm() + } + + /* istanbul ignore if */ + if (isDef(el._leaveCb) || el.nodeType !== 1) { + return + } + + var css = data.css; + var type = data.type; + var leaveClass = data.leaveClass; + var leaveToClass = data.leaveToClass; + var leaveActiveClass = data.leaveActiveClass; + var beforeLeave = data.beforeLeave; + var leave = data.leave; + var afterLeave = data.afterLeave; + var leaveCancelled = data.leaveCancelled; + var delayLeave = data.delayLeave; + var duration = data.duration; + + var expectsCSS = css !== false && !isIE9; + var userWantsControl = getHookArgumentsLength(leave); + + var explicitLeaveDuration = toNumber( + isObject(duration) + ? duration.leave + : duration + ); + + if ("development" !== 'production' && isDef(explicitLeaveDuration)) { + checkDuration(explicitLeaveDuration, 'leave', vnode); + } + + var cb = el._leaveCb = once(function () { + if (el.parentNode && el.parentNode._pending) { + el.parentNode._pending[vnode.key] = null; + } + if (expectsCSS) { + removeTransitionClass(el, leaveToClass); + removeTransitionClass(el, leaveActiveClass); + } + if (cb.cancelled) { + if (expectsCSS) { + removeTransitionClass(el, leaveClass); + } + leaveCancelled && leaveCancelled(el); + } else { + rm(); + afterLeave && afterLeave(el); + } + el._leaveCb = null; + }); + + if (delayLeave) { + delayLeave(performLeave); + } else { + performLeave(); + } + + function performLeave () { + // the delayed leave may have already been cancelled + if (cb.cancelled) { + return + } + // record leaving element + if (!vnode.data.show) { + (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode; + } + beforeLeave && beforeLeave(el); + if (expectsCSS) { + addTransitionClass(el, leaveClass); + addTransitionClass(el, leaveActiveClass); + nextFrame(function () { + addTransitionClass(el, leaveToClass); + removeTransitionClass(el, leaveClass); + if (!cb.cancelled && !userWantsControl) { + if (isValidDuration(explicitLeaveDuration)) { + setTimeout(cb, explicitLeaveDuration); + } else { + whenTransitionEnds(el, type, cb); + } + } + }); + } + leave && leave(el, cb); + if (!expectsCSS && !userWantsControl) { + cb(); + } + } +} + +// only used in dev mode +function checkDuration (val, name, vnode) { + if (typeof val !== 'number') { + warn( + "<transition> explicit " + name + " duration is not a valid number - " + + "got " + (JSON.stringify(val)) + ".", + vnode.context + ); + } else if (isNaN(val)) { + warn( + "<transition> explicit " + name + " duration is NaN - " + + 'the duration expression might be incorrect.', + vnode.context + ); + } +} + +function isValidDuration (val) { + return typeof val === 'number' && !isNaN(val) +} + +/** + * Normalize a transition hook's argument length. The hook may be: + * - a merged hook (invoker) with the original in .fns + * - a wrapped component method (check ._length) + * - a plain function (.length) + */ +function getHookArgumentsLength (fn) { + if (isUndef(fn)) { + return false + } + var invokerFns = fn.fns; + if (isDef(invokerFns)) { + // invoker + return getHookArgumentsLength( + Array.isArray(invokerFns) + ? invokerFns[0] + : invokerFns + ) + } else { + return (fn._length || fn.length) > 1 + } +} + +function _enter (_, vnode) { + if (vnode.data.show !== true) { + enter(vnode); + } +} + +var transition = inBrowser ? { + create: _enter, + activate: _enter, + remove: function remove$$1 (vnode, rm) { + /* istanbul ignore else */ + if (vnode.data.show !== true) { + leave(vnode, rm); + } else { + rm(); + } + } +} : {}; + +var platformModules = [ + attrs, + klass, + events, + domProps, + style, + transition +]; + +/* */ + +// the directive module should be applied last, after all +// built-in modules have been applied. +var modules = platformModules.concat(baseModules); + +var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules }); + +/** + * Not type checking this file because flow doesn't like attaching + * properties to Elements. + */ + +var isTextInputType = makeMap('text,number,password,search,email,tel,url'); + +/* istanbul ignore if */ +if (isIE9) { + // http://www.matts411.com/post/internet-explorer-9-oninput/ + document.addEventListener('selectionchange', function () { + var el = document.activeElement; + if (el && el.vmodel) { + trigger(el, 'input'); + } + }); +} + +var model$1 = { + inserted: function inserted (el, binding, vnode) { + if (vnode.tag === 'select') { + var cb = function () { + setSelected(el, binding, vnode.context); + }; + cb(); + /* istanbul ignore if */ + if (isIE || isEdge) { + setTimeout(cb, 0); + } + } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) { + el._vModifiers = binding.modifiers; + if (!binding.modifiers.lazy) { + // Safari < 10.2 & UIWebView doesn't fire compositionend when + // switching focus before confirming composition choice + // this also fixes the issue where some browsers e.g. iOS Chrome + // fires "change" instead of "input" on autocomplete. + el.addEventListener('change', onCompositionEnd); + if (!isAndroid) { + el.addEventListener('compositionstart', onCompositionStart); + el.addEventListener('compositionend', onCompositionEnd); + } + /* istanbul ignore if */ + if (isIE9) { + el.vmodel = true; + } + } + } + }, + componentUpdated: function componentUpdated (el, binding, vnode) { + if (vnode.tag === 'select') { + setSelected(el, binding, vnode.context); + // in case the options rendered by v-for have changed, + // it's possible that the value is out-of-sync with the rendered options. + // detect such cases and filter out values that no longer has a matching + // option in the DOM. + var needReset = el.multiple + ? binding.value.some(function (v) { return hasNoMatchingOption(v, el.options); }) + : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, el.options); + if (needReset) { + trigger(el, 'change'); + } + } + } +}; + +function setSelected (el, binding, vm) { + var value = binding.value; + var isMultiple = el.multiple; + if (isMultiple && !Array.isArray(value)) { + "development" !== 'production' && warn( + "<select multiple v-model=\"" + (binding.expression) + "\"> " + + "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)), + vm + ); + return + } + var selected, option; + for (var i = 0, l = el.options.length; i < l; i++) { + option = el.options[i]; + if (isMultiple) { + selected = looseIndexOf(value, getValue(option)) > -1; + if (option.selected !== selected) { + option.selected = selected; + } + } else { + if (looseEqual(getValue(option), value)) { + if (el.selectedIndex !== i) { + el.selectedIndex = i; + } + return + } + } + } + if (!isMultiple) { + el.selectedIndex = -1; + } +} + +function hasNoMatchingOption (value, options) { + for (var i = 0, l = options.length; i < l; i++) { + if (looseEqual(getValue(options[i]), value)) { + return false + } + } + return true +} + +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$$1 && !isIE9) { + vnode.data.show = true; + enter(vnode, function () { + el.style.display = originalDisplay; + }); + } else { + el.style.display = value ? originalDisplay : 'none'; + } + }, + + update: function update (el, ref, vnode) { + var value = ref.value; + var oldValue = ref.oldValue; + + /* istanbul ignore if */ + if (value === oldValue) { return } + vnode = locateNode(vnode); + var transition$$1 = vnode.data && vnode.data.transition; + if (transition$$1 && !isIE9) { + vnode.data.show = true; + if (value) { + enter(vnode, function () { + el.style.display = el.__vOriginalDisplay; + }); + } else { + leave(vnode, function () { + el.style.display = 'none'; + }); + } + } else { + el.style.display = value ? el.__vOriginalDisplay : 'none'; + } + }, + + unbind: function unbind ( + el, + binding, + vnode, + oldVnode, + isDestroy + ) { + if (!isDestroy) { + el.style.display = el.__vOriginalDisplay; + } + } +}; + +var platformDirectives = { + model: model$1, + show: show +}; + +/* */ + +// Provides transition support for a single element/component. +// supports transition mode (out-in / in-out) + +var transitionProps = { + name: String, + appear: Boolean, + css: Boolean, + mode: String, + type: String, + enterClass: String, + leaveClass: String, + enterToClass: String, + leaveToClass: String, + enterActiveClass: String, + leaveActiveClass: String, + appearClass: String, + appearActiveClass: String, + appearToClass: String, + duration: [Number, String, Object] +}; + +// in case the child is also an abstract component, e.g. <keep-alive> +// we want to recursively retrieve the real component to be rendered +function getRealChild (vnode) { + var compOptions = vnode && vnode.componentOptions; + if (compOptions && compOptions.Ctor.options.abstract) { + return getRealChild(getFirstComponentChild(compOptions.children)) + } else { + return vnode + } +} + +function extractTransitionData (comp) { + var data = {}; + var options = comp.$options; + // props + for (var key in options.propsData) { + data[key] = comp[key]; + } + // events. + // extract listeners and pass them directly to the transition methods + var listeners = options._parentListeners; + for (var key$1 in listeners) { + data[camelize(key$1)] = listeners[key$1]; + } + return data +} + +function placeholder (h, rawChild) { + if (/\d-keep-alive$/.test(rawChild.tag)) { + return h('keep-alive', { + props: rawChild.componentOptions.propsData + }) + } +} + +function hasParentTransition (vnode) { + while ((vnode = vnode.parent)) { + if (vnode.data.transition) { + return true + } + } +} + +function isSameChild (child, oldChild) { + return oldChild.key === child.key && oldChild.tag === child.tag +} + +function isAsyncPlaceholder (node) { + return node.isComment && node.asyncFactory +} + +var Transition = { + name: 'transition', + props: transitionProps, + abstract: true, + + render: function render (h) { + var this$1 = this; + + var children = this.$options._renderChildren; + if (!children) { + return + } + + // filter out text nodes (possible whitespaces) + children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); }); + /* istanbul ignore if */ + if (!children.length) { + return + } + + // warn multiple elements + if ("development" !== 'production' && children.length > 1) { + warn( + '<transition> can only be used on a single element. Use ' + + '<transition-group> for lists.', + this.$parent + ); + } + + var mode = this.mode; + + // warn invalid mode + if ("development" !== 'production' && + mode && mode !== 'in-out' && mode !== 'out-in' + ) { + warn( + 'invalid <transition> mode: ' + mode, + this.$parent + ); + } + + var rawChild = children[0]; + + // if this is a component root node and the component's + // parent container node also has transition, skip. + if (hasParentTransition(this.$vnode)) { + return rawChild + } + + // apply transition data to child + // use getRealChild() to ignore abstract components e.g. keep-alive + var child = getRealChild(rawChild); + /* istanbul ignore if */ + if (!child) { + return rawChild + } + + if (this._leaving) { + return placeholder(h, rawChild) + } + + // ensure a key that is unique to the vnode type and to this transition + // component instance. This key will be used to remove pending leaving nodes + // during entering. + var id = "__transition-" + (this._uid) + "-"; + child.key = child.key == null + ? child.isComment + ? id + 'comment' + : id + child.tag + : isPrimitive(child.key) + ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key) + : child.key; + + var data = (child.data || (child.data = {})).transition = extractTransitionData(this); + var oldRawChild = this._vnode; + var oldChild = getRealChild(oldRawChild); + + // mark v-show + // so that the transition module can hand over the control to the directive + if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) { + child.data.show = true; + } + + if ( + oldChild && + oldChild.data && + !isSameChild(child, oldChild) && + !isAsyncPlaceholder(oldChild) + ) { + // replace old child transition data with fresh one + // important for dynamic transitions! + var oldData = oldChild && (oldChild.data.transition = extend({}, data)); + // handle transition mode + if (mode === 'out-in') { + // return placeholder node and queue update when leave finishes + this._leaving = true; + mergeVNodeHook(oldData, 'afterLeave', function () { + this$1._leaving = false; + this$1.$forceUpdate(); + }); + return placeholder(h, rawChild) + } else if (mode === 'in-out') { + if (isAsyncPlaceholder(child)) { + return oldRawChild + } + var delayedLeave; + var performLeave = function () { delayedLeave(); }; + mergeVNodeHook(data, 'afterEnter', performLeave); + mergeVNodeHook(data, 'enterCancelled', performLeave); + mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; }); + } + } + + return rawChild + } +}; + +/* */ + +// Provides transition support for list items. +// supports move transitions using the FLIP technique. + +// Because the vdom's children update algorithm is "unstable" - i.e. +// it doesn't guarantee the relative positioning of removed elements, +// we force transition-group to update its children into two passes: +// in the first pass, we remove all nodes that need to be removed, +// triggering their leaving transition; in the second pass, we insert/move +// into the final desired state. This way in the second pass removed +// nodes will remain where they should be. + +var props = extend({ + tag: String, + moveClass: String +}, transitionProps); + +delete props.mode; + +var TransitionGroup = { + props: props, + + render: function render (h) { + var tag = this.tag || this.$vnode.data.tag || 'span'; + var map = Object.create(null); + var prevChildren = this.prevChildren = this.children; + var rawChildren = this.$slots.default || []; + var children = this.children = []; + var transitionData = extractTransitionData(this); + + for (var i = 0; i < rawChildren.length; i++) { + var c = rawChildren[i]; + if (c.tag) { + if (c.key != null && String(c.key).indexOf('__vlist') !== 0) { + children.push(c); + map[c.key] = c + ;(c.data || (c.data = {})).transition = transitionData; + } else { + var opts = c.componentOptions; + var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag; + warn(("<transition-group> children must be keyed: <" + name + ">")); + } + } + } + + if (prevChildren) { + var kept = []; + var removed = []; + for (var i$1 = 0; i$1 < prevChildren.length; i$1++) { + var c$1 = prevChildren[i$1]; + c$1.data.transition = transitionData; + c$1.data.pos = c$1.elm.getBoundingClientRect(); + if (map[c$1.key]) { + kept.push(c$1); + } else { + removed.push(c$1); + } + } + this.kept = h(tag, null, kept); + this.removed = removed; + } + + return h(tag, null, children) + }, + + beforeUpdate: function beforeUpdate () { + // force removing pass + this.__patch__( + this._vnode, + this.kept, + false, // hydrating + true // removeOnly (!important, avoids unnecessary moves) + ); + this._vnode = this.kept; + }, + + updated: function updated () { + var children = this.prevChildren; + var moveClass = this.moveClass || ((this.name || 'v') + '-move'); + if (!children.length || !this.hasMove(children[0].elm, moveClass)) { + return + } + + // we divide the work into three loops to avoid mixing DOM reads and writes + // in each iteration - which helps prevent layout thrashing. + children.forEach(callPendingCbs); + children.forEach(recordPosition); + children.forEach(applyTranslation); + + // force reflow to put everything in position + var body = document.body; + var f = body.offsetHeight; // eslint-disable-line + + children.forEach(function (c) { + if (c.data.moved) { + var el = c.elm; + var s = el.style; + addTransitionClass(el, moveClass); + s.transform = s.WebkitTransform = s.transitionDuration = ''; + el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) { + if (!e || /transform$/.test(e.propertyName)) { + el.removeEventListener(transitionEndEvent, cb); + el._moveCb = null; + removeTransitionClass(el, moveClass); + } + }); + } + }); + }, + + methods: { + hasMove: function hasMove (el, moveClass) { + /* istanbul ignore if */ + if (!hasTransition) { + return false + } + /* istanbul ignore if */ + if (this._hasMove) { + return this._hasMove + } + // Detect whether an element with the move class applied has + // CSS transitions. Since the element may be inside an entering + // transition at this very moment, we make a clone of it and remove + // all other transition classes applied to ensure only the move class + // is applied. + var clone = el.cloneNode(); + if (el._transitionClasses) { + el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); }); + } + addClass(clone, moveClass); + clone.style.display = 'none'; + this.$el.appendChild(clone); + var info = getTransitionInfo(clone); + this.$el.removeChild(clone); + return (this._hasMove = info.hasTransform) + } + } +}; + +function callPendingCbs (c) { + /* istanbul ignore if */ + if (c.elm._moveCb) { + c.elm._moveCb(); + } + /* istanbul ignore if */ + if (c.elm._enterCb) { + c.elm._enterCb(); + } +} + +function recordPosition (c) { + c.data.newPos = c.elm.getBoundingClientRect(); +} + +function applyTranslation (c) { + var oldPos = c.data.pos; + var newPos = c.data.newPos; + var dx = oldPos.left - newPos.left; + var dy = oldPos.top - newPos.top; + if (dx || dy) { + c.data.moved = true; + var s = c.elm.style; + s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)"; + s.transitionDuration = '0s'; + } +} + +var platformComponents = { + Transition: Transition, + TransitionGroup: TransitionGroup +}; + +/* */ + +// install platform specific utils +Vue$3.config.mustUseProp = mustUseProp; +Vue$3.config.isReservedTag = isReservedTag; +Vue$3.config.isReservedAttr = isReservedAttr; +Vue$3.config.getTagNamespace = getTagNamespace; +Vue$3.config.isUnknownElement = isUnknownElement; + +// install platform runtime directives & components +extend(Vue$3.options.directives, platformDirectives); +extend(Vue$3.options.components, platformComponents); + +// install platform patch function +Vue$3.prototype.__patch__ = inBrowser ? patch : noop; + +// public mount method +Vue$3.prototype.$mount = function ( + el, + hydrating +) { + el = el && inBrowser ? query(el) : undefined; + return mountComponent(this, el, hydrating) +}; + +// devtools global hook +/* istanbul ignore next */ +setTimeout(function () { + if (config.devtools) { + if (devtools) { + devtools.emit('init', Vue$3); + } else if ("development" !== 'production' && isChrome) { + console[console.info ? 'info' : 'log']( + 'Download the Vue Devtools extension for a better development experience:\n' + + 'https://github.com/vuejs/vue-devtools' + ); + } + } + if ("development" !== 'production' && + config.productionTip !== false && + inBrowser && typeof console !== 'undefined' + ) { + console[console.info ? 'info' : 'log']( + "You are running Vue in development mode.\n" + + "Make sure to turn on production mode when deploying for production.\n" + + "See more tips at https://vuejs.org/guide/deployment.html" + ); + } +}, 0); + +/* */ + +// check whether current browser encodes a char inside attribute values +function shouldDecode (content, encoded) { + var div = document.createElement('div'); + div.innerHTML = "<div a=\"" + content + "\"/>"; + return div.innerHTML.indexOf(encoded) > 0 +} + +// #3663 +// IE encodes newlines inside attribute values while other browsers don't +var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', ' ') : false; + +/* */ + +var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g; +var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g; + +var buildRegex = cached(function (delimiters) { + var open = delimiters[0].replace(regexEscapeRE, '\\$&'); + var close = delimiters[1].replace(regexEscapeRE, '\\$&'); + return new RegExp(open + '((?:.|\\n)+?)' + close, 'g') +}); + +function parseText ( + text, + delimiters +) { + var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE; + if (!tagRE.test(text)) { + return + } + var tokens = []; + var lastIndex = tagRE.lastIndex = 0; + var match, index; + while ((match = tagRE.exec(text))) { + index = match.index; + // push text token + if (index > lastIndex) { + tokens.push(JSON.stringify(text.slice(lastIndex, index))); + } + // tag token + var exp = parseFilters(match[1].trim()); + tokens.push(("_s(" + exp + ")")); + lastIndex = index + match[0].length; + } + if (lastIndex < text.length) { + tokens.push(JSON.stringify(text.slice(lastIndex))); + } + return tokens.join('+') +} + +/* */ + +function transformNode (el, options) { + var warn = options.warn || baseWarn; + var staticClass = getAndRemoveAttr(el, 'class'); + if ("development" !== 'production' && staticClass) { + var expression = parseText(staticClass, options.delimiters); + if (expression) { + warn( + "class=\"" + staticClass + "\": " + + 'Interpolation inside attributes has been removed. ' + + 'Use v-bind or the colon shorthand instead. For example, ' + + 'instead of <div class="{{ val }}">, use <div :class="val">.' + ); + } + } + if (staticClass) { + el.staticClass = JSON.stringify(staticClass); + } + var classBinding = getBindingAttr(el, 'class', false /* getStatic */); + if (classBinding) { + el.classBinding = classBinding; + } +} + +function genData (el) { + var data = ''; + if (el.staticClass) { + data += "staticClass:" + (el.staticClass) + ","; + } + if (el.classBinding) { + data += "class:" + (el.classBinding) + ","; + } + return data +} + +var klass$1 = { + staticKeys: ['staticClass'], + transformNode: transformNode, + genData: genData +}; + +/* */ + +function transformNode$1 (el, options) { + var warn = options.warn || baseWarn; + var staticStyle = getAndRemoveAttr(el, 'style'); + if (staticStyle) { + /* istanbul ignore if */ + { + var expression = parseText(staticStyle, options.delimiters); + if (expression) { + warn( + "style=\"" + staticStyle + "\": " + + 'Interpolation inside attributes has been removed. ' + + 'Use v-bind or the colon shorthand instead. For example, ' + + 'instead of <div style="{{ val }}">, use <div :style="val">.' + ); + } + } + el.staticStyle = JSON.stringify(parseStyleText(staticStyle)); + } + + var styleBinding = getBindingAttr(el, 'style', false /* getStatic */); + if (styleBinding) { + el.styleBinding = styleBinding; + } +} + +function genData$1 (el) { + var data = ''; + if (el.staticStyle) { + data += "staticStyle:" + (el.staticStyle) + ","; + } + if (el.styleBinding) { + data += "style:(" + (el.styleBinding) + "),"; + } + return data +} + +var style$1 = { + staticKeys: ['staticStyle'], + transformNode: transformNode$1, + genData: genData$1 +}; + +var modules$1 = [ + klass$1, + style$1 +]; + +/* */ + +function text (el, dir) { + if (dir.value) { + addProp(el, 'textContent', ("_s(" + (dir.value) + ")")); + } +} + +/* */ + +function html (el, dir) { + if (dir.value) { + addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")")); + } +} + +var directives$1 = { + model: model, + text: text, + html: html +}; + +/* */ + +var isUnaryTag = makeMap( + 'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' + + 'link,meta,param,source,track,wbr' +); + +// Elements that you can, intentionally, leave open +// (and which close themselves) +var canBeLeftOpenTag = makeMap( + 'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source' +); + +// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3 +// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content +var isNonPhrasingTag = makeMap( + 'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' + + 'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' + + 'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' + + 'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' + + 'title,tr,track' +); + +/* */ + +var baseOptions = { + expectHTML: true, + modules: modules$1, + directives: directives$1, + isPreTag: isPreTag, + isUnaryTag: isUnaryTag, + mustUseProp: mustUseProp, + canBeLeftOpenTag: canBeLeftOpenTag, + isReservedTag: isReservedTag, + getTagNamespace: getTagNamespace, + staticKeys: genStaticKeys(modules$1) +}; + +/* */ + +var decoder; + +var he = { + decode: function decode (html) { + decoder = decoder || document.createElement('div'); + decoder.innerHTML = html; + return decoder.textContent + } +}; + +/** + * Not type-checking this file because it's mostly vendor code. + */ + +/*! + * HTML Parser By John Resig (ejohn.org) + * Modified by Juriy "kangax" Zaytsev + * Original code by Erik Arvidsson, Mozilla Public License + * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js + */ + +// Regular Expressions for parsing tags and attributes +var singleAttrIdentifier = /([^\s"'<>/=]+)/; +var singleAttrAssign = /(?:=)/; +var singleAttrValues = [ + // attr value double quotes + /"([^"]*)"+/.source, + // attr value, single quotes + /'([^']*)'+/.source, + // attr value, no quotes + /([^\s"'=<>`]+)/.source +]; +var attribute = new RegExp( + '^\\s*' + singleAttrIdentifier.source + + '(?:\\s*(' + singleAttrAssign.source + ')' + + '\\s*(?:' + singleAttrValues.join('|') + '))?' +); + +// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName +// but for Vue templates we can enforce a simple charset +var ncname = '[a-zA-Z_][\\w\\-\\.]*'; +var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')'; +var startTagOpen = new RegExp('^<' + qnameCapture); +var startTagClose = /^\s*(\/?)>/; +var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>'); +var doctype = /^<!DOCTYPE [^>]+>/i; +var comment = /^<!--/; +var conditionalComment = /^<!\[/; + +var IS_REGEX_CAPTURING_BROKEN = false; +'x'.replace(/x(.)?/g, function (m, g) { + IS_REGEX_CAPTURING_BROKEN = g === ''; +}); + +// Special Elements (can contain anything) +var isPlainTextElement = makeMap('script,style,textarea', true); +var reCache = {}; + +var decodingMap = { + '<': '<', + '>': '>', + '"': '"', + '&': '&', + ' ': '\n' +}; +var encodedAttr = /&(?:lt|gt|quot|amp);/g; +var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g; + +// #5992 +var isIgnoreNewlineTag = makeMap('pre,textarea', true); +var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; }; + +function decodeAttr (value, shouldDecodeNewlines) { + var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr; + return value.replace(re, function (match) { return decodingMap[match]; }) +} + +function parseHTML (html, options) { + var stack = []; + var expectHTML = options.expectHTML; + var isUnaryTag$$1 = options.isUnaryTag || no; + var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no; + var index = 0; + var last, lastTag; + while (html) { + last = html; + // Make sure we're not in a plaintext content element like script/style + if (!lastTag || !isPlainTextElement(lastTag)) { + if (shouldIgnoreFirstNewline(lastTag, html)) { + advance(1); + } + var textEnd = html.indexOf('<'); + if (textEnd === 0) { + // Comment: + if (comment.test(html)) { + var commentEnd = html.indexOf('-->'); + + if (commentEnd >= 0) { + if (options.shouldKeepComment) { + options.comment(html.substring(4, commentEnd)); + } + advance(commentEnd + 3); + continue + } + } + + // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment + if (conditionalComment.test(html)) { + var conditionalEnd = html.indexOf(']>'); + + if (conditionalEnd >= 0) { + advance(conditionalEnd + 2); + continue + } + } + + // Doctype: + var doctypeMatch = html.match(doctype); + if (doctypeMatch) { + advance(doctypeMatch[0].length); + continue + } + + // End tag: + var endTagMatch = html.match(endTag); + if (endTagMatch) { + var curIndex = index; + advance(endTagMatch[0].length); + parseEndTag(endTagMatch[1], curIndex, index); + continue + } + + // Start tag: + var startTagMatch = parseStartTag(); + if (startTagMatch) { + handleStartTag(startTagMatch); + continue + } + } + + var text = (void 0), rest = (void 0), next = (void 0); + if (textEnd >= 0) { + rest = html.slice(textEnd); + while ( + !endTag.test(rest) && + !startTagOpen.test(rest) && + !comment.test(rest) && + !conditionalComment.test(rest) + ) { + // < in plain text, be forgiving and treat it as text + next = rest.indexOf('<', 1); + if (next < 0) { break } + textEnd += next; + rest = html.slice(textEnd); + } + text = html.substring(0, textEnd); + advance(textEnd); + } + + if (textEnd < 0) { + text = html; + html = ''; + } + + if (options.chars && text) { + options.chars(text); + } + } else { + var endTagLength = 0; + var stackedTag = lastTag.toLowerCase(); + var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i')); + var rest$1 = html.replace(reStackedTag, function (all, text, endTag) { + endTagLength = endTag.length; + if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') { + text = text + .replace(/<!--([\s\S]*?)-->/g, '$1') + .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1'); + } + if (shouldIgnoreFirstNewline(stackedTag, text)) { + text = text.slice(1); + } + if (options.chars) { + options.chars(text); + } + return '' + }); + index += html.length - rest$1.length; + html = rest$1; + parseEndTag(stackedTag, index - endTagLength, index); + } + + if (html === last) { + options.chars && options.chars(html); + if ("development" !== 'production' && !stack.length && options.warn) { + options.warn(("Mal-formatted tag at end of template: \"" + html + "\"")); + } + break + } + } + + // Clean up any remaining tags + parseEndTag(); + + function advance (n) { + index += n; + html = html.substring(n); + } + + function parseStartTag () { + var start = html.match(startTagOpen); + if (start) { + var match = { + tagName: start[1], + attrs: [], + start: index + }; + advance(start[0].length); + var end, attr; + while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) { + advance(attr[0].length); + match.attrs.push(attr); + } + if (end) { + match.unarySlash = end[1]; + advance(end[0].length); + match.end = index; + return match + } + } + } + + function handleStartTag (match) { + var tagName = match.tagName; + var unarySlash = match.unarySlash; + + if (expectHTML) { + if (lastTag === 'p' && isNonPhrasingTag(tagName)) { + parseEndTag(lastTag); + } + if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) { + parseEndTag(tagName); + } + } + + var unary = isUnaryTag$$1(tagName) || !!unarySlash; + + var l = match.attrs.length; + var attrs = new Array(l); + for (var i = 0; i < l; i++) { + var args = match.attrs[i]; + // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778 + if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) { + if (args[3] === '') { delete args[3]; } + if (args[4] === '') { delete args[4]; } + if (args[5] === '') { delete args[5]; } + } + var value = args[3] || args[4] || args[5] || ''; + attrs[i] = { + name: args[1], + value: decodeAttr( + value, + options.shouldDecodeNewlines + ) + }; + } + + if (!unary) { + stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs }); + lastTag = tagName; + } + + if (options.start) { + options.start(tagName, attrs, unary, match.start, match.end); + } + } + + function parseEndTag (tagName, start, end) { + var pos, lowerCasedTagName; + if (start == null) { start = index; } + if (end == null) { end = index; } + + if (tagName) { + lowerCasedTagName = tagName.toLowerCase(); + } + + // Find the closest opened tag of the same type + if (tagName) { + for (pos = stack.length - 1; pos >= 0; pos--) { + if (stack[pos].lowerCasedTag === lowerCasedTagName) { + break + } + } + } else { + // If no tag name is provided, clean shop + pos = 0; + } + + if (pos >= 0) { + // Close all the open elements, up the stack + for (var i = stack.length - 1; i >= pos; i--) { + if ("development" !== 'production' && + (i > pos || !tagName) && + options.warn + ) { + options.warn( + ("tag <" + (stack[i].tag) + "> has no matching end tag.") + ); + } + if (options.end) { + options.end(stack[i].tag, start, end); + } + } + + // Remove the open elements from the stack + stack.length = pos; + lastTag = pos && stack[pos - 1].tag; + } else if (lowerCasedTagName === 'br') { + if (options.start) { + options.start(tagName, [], true, start, end); + } + } else if (lowerCasedTagName === 'p') { + if (options.start) { + options.start(tagName, [], false, start, end); + } + if (options.end) { + options.end(tagName, start, end); + } + } + } +} + +/* */ + +var onRE = /^@|^v-on:/; +var dirRE = /^v-|^@|^:/; +var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/; +var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/; + +var argRE = /:(.*)$/; +var bindRE = /^:|^v-bind:/; +var modifierRE = /\.[^.]+/g; + +var decodeHTMLCached = cached(he.decode); + +// configurable state +var warn$2; +var delimiters; +var transforms; +var preTransforms; +var postTransforms; +var platformIsPreTag; +var platformMustUseProp; +var platformGetTagNamespace; + +/** + * Convert HTML string to AST. + */ +function parse ( + template, + options +) { + warn$2 = options.warn || baseWarn; + + platformIsPreTag = options.isPreTag || no; + platformMustUseProp = options.mustUseProp || no; + platformGetTagNamespace = options.getTagNamespace || no; + + transforms = pluckModuleFunction(options.modules, 'transformNode'); + preTransforms = pluckModuleFunction(options.modules, 'preTransformNode'); + postTransforms = pluckModuleFunction(options.modules, 'postTransformNode'); + + delimiters = options.delimiters; + + var stack = []; + var preserveWhitespace = options.preserveWhitespace !== false; + var root; + var currentParent; + var inVPre = false; + var inPre = false; + var warned = false; + + function warnOnce (msg) { + if (!warned) { + warned = true; + warn$2(msg); + } + } + + function endPre (element) { + // check pre state + if (element.pre) { + inVPre = false; + } + if (platformIsPreTag(element.tag)) { + inPre = false; + } + } + + parseHTML(template, { + warn: warn$2, + expectHTML: options.expectHTML, + isUnaryTag: options.isUnaryTag, + canBeLeftOpenTag: options.canBeLeftOpenTag, + shouldDecodeNewlines: options.shouldDecodeNewlines, + shouldKeepComment: options.comments, + start: function start (tag, attrs, unary) { + // check namespace. + // inherit parent ns if there is one + var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag); + + // handle IE svg bug + /* istanbul ignore if */ + if (isIE && ns === 'svg') { + attrs = guardIESVGBug(attrs); + } + + var element = { + type: 1, + tag: tag, + attrsList: attrs, + attrsMap: makeAttrsMap(attrs), + parent: currentParent, + children: [] + }; + if (ns) { + element.ns = ns; + } + + if (isForbiddenTag(element) && !isServerRendering()) { + element.forbidden = true; + "development" !== 'production' && warn$2( + 'Templates should only be responsible for mapping the state to the ' + + 'UI. Avoid placing tags with side-effects in your templates, such as ' + + "<" + tag + ">" + ', as they will not be parsed.' + ); + } + + // apply pre-transforms + for (var i = 0; i < preTransforms.length; i++) { + preTransforms[i](element, options); + } + + if (!inVPre) { + processPre(element); + if (element.pre) { + inVPre = true; + } + } + if (platformIsPreTag(element.tag)) { + inPre = true; + } + if (inVPre) { + processRawAttrs(element); + } else { + processFor(element); + processIf(element); + processOnce(element); + processKey(element); + + // determine whether this is a plain element after + // removing structural attributes + element.plain = !element.key && !attrs.length; + + processRef(element); + processSlot(element); + processComponent(element); + for (var i$1 = 0; i$1 < transforms.length; i$1++) { + transforms[i$1](element, options); + } + processAttrs(element); + } + + function checkRootConstraints (el) { + { + if (el.tag === 'slot' || el.tag === 'template') { + warnOnce( + "Cannot use <" + (el.tag) + "> as component root element because it may " + + 'contain multiple nodes.' + ); + } + if (el.attrsMap.hasOwnProperty('v-for')) { + warnOnce( + 'Cannot use v-for on stateful component root element because ' + + 'it renders multiple elements.' + ); + } + } + } + + // tree management + if (!root) { + root = element; + checkRootConstraints(root); + } else if (!stack.length) { + // allow root elements with v-if, v-else-if and v-else + if (root.if && (element.elseif || element.else)) { + checkRootConstraints(element); + addIfCondition(root, { + exp: element.elseif, + block: element + }); + } else { + warnOnce( + "Component template should contain exactly one root element. " + + "If you are using v-if on multiple elements, " + + "use v-else-if to chain them instead." + ); + } + } + if (currentParent && !element.forbidden) { + if (element.elseif || element.else) { + processIfConditions(element, currentParent); + } else if (element.slotScope) { // scoped slot + currentParent.plain = false; + var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element; + } else { + currentParent.children.push(element); + element.parent = currentParent; + } + } + if (!unary) { + currentParent = element; + stack.push(element); + } else { + endPre(element); + } + // apply post-transforms + for (var i$2 = 0; i$2 < postTransforms.length; i$2++) { + postTransforms[i$2](element, options); + } + }, + + end: function end () { + // remove trailing whitespace + var element = stack[stack.length - 1]; + var lastNode = element.children[element.children.length - 1]; + if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) { + element.children.pop(); + } + // pop stack + stack.length -= 1; + currentParent = stack[stack.length - 1]; + endPre(element); + }, + + chars: function chars (text) { + if (!currentParent) { + { + if (text === template) { + warnOnce( + 'Component template requires a root element, rather than just text.' + ); + } else if ((text = text.trim())) { + warnOnce( + ("text \"" + text + "\" outside root element will be ignored.") + ); + } + } + return + } + // IE textarea placeholder bug + /* istanbul ignore if */ + if (isIE && + currentParent.tag === 'textarea' && + currentParent.attrsMap.placeholder === text + ) { + return + } + var children = currentParent.children; + text = inPre || text.trim() + ? isTextTag(currentParent) ? text : decodeHTMLCached(text) + // only preserve whitespace if its not right after a starting tag + : preserveWhitespace && children.length ? ' ' : ''; + if (text) { + var expression; + if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) { + children.push({ + type: 2, + expression: expression, + text: text + }); + } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') { + children.push({ + type: 3, + text: text + }); + } + } + }, + comment: function comment (text) { + currentParent.children.push({ + type: 3, + text: text, + isComment: true + }); + } + }); + return root +} + +function processPre (el) { + if (getAndRemoveAttr(el, 'v-pre') != null) { + el.pre = true; + } +} + +function processRawAttrs (el) { + var l = el.attrsList.length; + if (l) { + var attrs = el.attrs = new Array(l); + for (var i = 0; i < l; i++) { + attrs[i] = { + name: el.attrsList[i].name, + value: JSON.stringify(el.attrsList[i].value) + }; + } + } else if (!el.pre) { + // non root node in pre blocks with no attributes + el.plain = true; + } +} + +function processKey (el) { + var exp = getBindingAttr(el, 'key'); + if (exp) { + if ("development" !== 'production' && el.tag === 'template') { + warn$2("<template> cannot be keyed. Place the key on real elements instead."); + } + el.key = exp; + } +} + +function processRef (el) { + var ref = getBindingAttr(el, 'ref'); + if (ref) { + el.ref = ref; + el.refInFor = checkInFor(el); + } +} + +function processFor (el) { + var exp; + if ((exp = getAndRemoveAttr(el, 'v-for'))) { + var inMatch = exp.match(forAliasRE); + if (!inMatch) { + "development" !== 'production' && warn$2( + ("Invalid v-for expression: " + exp) + ); + return + } + el.for = inMatch[2].trim(); + var alias = inMatch[1].trim(); + var iteratorMatch = alias.match(forIteratorRE); + if (iteratorMatch) { + el.alias = iteratorMatch[1].trim(); + el.iterator1 = iteratorMatch[2].trim(); + if (iteratorMatch[3]) { + el.iterator2 = iteratorMatch[3].trim(); + } + } else { + el.alias = alias; + } + } +} + +function processIf (el) { + var exp = getAndRemoveAttr(el, 'v-if'); + if (exp) { + el.if = exp; + addIfCondition(el, { + exp: exp, + block: el + }); + } else { + if (getAndRemoveAttr(el, 'v-else') != null) { + el.else = true; + } + var elseif = getAndRemoveAttr(el, 'v-else-if'); + if (elseif) { + el.elseif = elseif; + } + } +} + +function processIfConditions (el, parent) { + var prev = findPrevElement(parent.children); + if (prev && prev.if) { + addIfCondition(prev, { + exp: el.elseif, + block: el + }); + } else { + warn$2( + "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " + + "used on element <" + (el.tag) + "> without corresponding v-if." + ); + } +} + +function findPrevElement (children) { + var i = children.length; + while (i--) { + if (children[i].type === 1) { + return children[i] + } else { + if ("development" !== 'production' && children[i].text !== ' ') { + warn$2( + "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " + + "will be ignored." + ); + } + children.pop(); + } + } +} + +function addIfCondition (el, condition) { + if (!el.ifConditions) { + el.ifConditions = []; + } + el.ifConditions.push(condition); +} + +function processOnce (el) { + var once$$1 = getAndRemoveAttr(el, 'v-once'); + if (once$$1 != null) { + el.once = true; + } +} + +function processSlot (el) { + if (el.tag === 'slot') { + el.slotName = getBindingAttr(el, 'name'); + if ("development" !== 'production' && el.key) { + warn$2( + "`key` does not work on <slot> because slots are abstract outlets " + + "and can possibly expand into multiple elements. " + + "Use the key on a wrapping element instead." + ); + } + } else { + var slotTarget = getBindingAttr(el, 'slot'); + if (slotTarget) { + el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget; + } + if (el.tag === 'template') { + el.slotScope = getAndRemoveAttr(el, 'scope'); + } + } +} + +function processComponent (el) { + var binding; + if ((binding = getBindingAttr(el, 'is'))) { + el.component = binding; + } + if (getAndRemoveAttr(el, 'inline-template') != null) { + el.inlineTemplate = true; + } +} + +function processAttrs (el) { + var list = el.attrsList; + var i, l, name, rawName, value, modifiers, isProp; + for (i = 0, l = list.length; i < l; i++) { + name = rawName = list[i].name; + value = list[i].value; + if (dirRE.test(name)) { + // mark element as dynamic + el.hasBindings = true; + // modifiers + modifiers = parseModifiers(name); + if (modifiers) { + name = name.replace(modifierRE, ''); + } + if (bindRE.test(name)) { // v-bind + name = name.replace(bindRE, ''); + value = parseFilters(value); + isProp = false; + if (modifiers) { + if (modifiers.prop) { + isProp = true; + name = camelize(name); + if (name === 'innerHtml') { name = 'innerHTML'; } + } + if (modifiers.camel) { + name = camelize(name); + } + if (modifiers.sync) { + addHandler( + el, + ("update:" + (camelize(name))), + genAssignmentCode(value, "$event") + ); + } + } + if (!el.component && ( + isProp || platformMustUseProp(el.tag, el.attrsMap.type, name) + )) { + addProp(el, name, value); + } else { + addAttr(el, name, value); + } + } else if (onRE.test(name)) { // v-on + name = name.replace(onRE, ''); + addHandler(el, name, value, modifiers, false, warn$2); + } else { // normal directives + name = name.replace(dirRE, ''); + // parse arg + var argMatch = name.match(argRE); + var arg = argMatch && argMatch[1]; + if (arg) { + name = name.slice(0, -(arg.length + 1)); + } + addDirective(el, name, rawName, value, arg, modifiers); + if ("development" !== 'production' && name === 'model') { + checkForAliasModel(el, value); + } + } + } else { + // literal attribute + { + var expression = parseText(value, delimiters); + if (expression) { + warn$2( + name + "=\"" + value + "\": " + + 'Interpolation inside attributes has been removed. ' + + 'Use v-bind or the colon shorthand instead. For example, ' + + 'instead of <div id="{{ val }}">, use <div :id="val">.' + ); + } + } + addAttr(el, name, JSON.stringify(value)); + } + } +} + +function checkInFor (el) { + var parent = el; + while (parent) { + if (parent.for !== undefined) { + return true + } + parent = parent.parent; + } + return false +} + +function parseModifiers (name) { + var match = name.match(modifierRE); + if (match) { + var ret = {}; + match.forEach(function (m) { ret[m.slice(1)] = true; }); + return ret + } +} + +function makeAttrsMap (attrs) { + var map = {}; + for (var i = 0, l = attrs.length; i < l; i++) { + if ( + "development" !== 'production' && + map[attrs[i].name] && !isIE && !isEdge + ) { + warn$2('duplicate attribute: ' + attrs[i].name); + } + map[attrs[i].name] = attrs[i].value; + } + return map +} + +// for script (e.g. type="x/template") or style, do not decode content +function isTextTag (el) { + return el.tag === 'script' || el.tag === 'style' +} + +function isForbiddenTag (el) { + return ( + el.tag === 'style' || + (el.tag === 'script' && ( + !el.attrsMap.type || + el.attrsMap.type === 'text/javascript' + )) + ) +} + +var ieNSBug = /^xmlns:NS\d+/; +var ieNSPrefix = /^NS\d+:/; + +/* istanbul ignore next */ +function guardIESVGBug (attrs) { + var res = []; + for (var i = 0; i < attrs.length; i++) { + var attr = attrs[i]; + if (!ieNSBug.test(attr.name)) { + attr.name = attr.name.replace(ieNSPrefix, ''); + res.push(attr); + } + } + return res +} + +function checkForAliasModel (el, value) { + var _el = el; + while (_el) { + if (_el.for && _el.alias === value) { + warn$2( + "<" + (el.tag) + " v-model=\"" + value + "\">: " + + "You are binding v-model directly to a v-for iteration alias. " + + "This will not be able to modify the v-for source array because " + + "writing to the alias is like modifying a function local variable. " + + "Consider using an array of objects and use v-model on an object property instead." + ); + } + _el = _el.parent; + } +} + +/* */ + +var isStaticKey; +var isPlatformReservedTag; + +var genStaticKeysCached = cached(genStaticKeys$1); + +/** + * Goal of the optimizer: walk the generated template AST tree + * and detect sub-trees that are purely static, i.e. parts of + * the DOM that never needs to change. + * + * Once we detect these sub-trees, we can: + * + * 1. Hoist them into constants, so that we no longer need to + * create fresh nodes for them on each re-render; + * 2. Completely skip them in the patching process. + */ +function optimize (root, options) { + if (!root) { return } + isStaticKey = genStaticKeysCached(options.staticKeys || ''); + isPlatformReservedTag = options.isReservedTag || no; + // first pass: mark all non-static nodes. + markStatic$1(root); + // second pass: mark static roots. + markStaticRoots(root, false); +} + +function genStaticKeys$1 (keys) { + return makeMap( + 'type,tag,attrsList,attrsMap,plain,parent,children,attrs' + + (keys ? ',' + keys : '') + ) +} + +function markStatic$1 (node) { + node.static = isStatic(node); + if (node.type === 1) { + // do not make component slot content static. this avoids + // 1. components not able to mutate slot nodes + // 2. static slot content fails for hot-reloading + if ( + !isPlatformReservedTag(node.tag) && + node.tag !== 'slot' && + node.attrsMap['inline-template'] == null + ) { + return + } + for (var i = 0, l = node.children.length; i < l; i++) { + var child = node.children[i]; + markStatic$1(child); + if (!child.static) { + node.static = false; + } + } + if (node.ifConditions) { + for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) { + var block = node.ifConditions[i$1].block; + markStatic$1(block); + if (!block.static) { + node.static = false; + } + } + } + } +} + +function markStaticRoots (node, isInFor) { + if (node.type === 1) { + if (node.static || node.once) { + node.staticInFor = isInFor; + } + // For a node to qualify as a static root, it should have children that + // are not just static text. Otherwise the cost of hoisting out will + // outweigh the benefits and it's better off to just always render it fresh. + if (node.static && node.children.length && !( + node.children.length === 1 && + node.children[0].type === 3 + )) { + node.staticRoot = true; + return + } else { + node.staticRoot = false; + } + if (node.children) { + for (var i = 0, l = node.children.length; i < l; i++) { + markStaticRoots(node.children[i], isInFor || !!node.for); + } + } + if (node.ifConditions) { + for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) { + markStaticRoots(node.ifConditions[i$1].block, isInFor); + } + } + } +} + +function isStatic (node) { + if (node.type === 2) { // expression + return false + } + if (node.type === 3) { // text + return true + } + return !!(node.pre || ( + !node.hasBindings && // no dynamic bindings + !node.if && !node.for && // not v-if or v-for or v-else + !isBuiltInTag(node.tag) && // not a built-in + isPlatformReservedTag(node.tag) && // not a component + !isDirectChildOfTemplateFor(node) && + Object.keys(node).every(isStaticKey) + )) +} + +function isDirectChildOfTemplateFor (node) { + while (node.parent) { + node = node.parent; + if (node.tag !== 'template') { + return false + } + if (node.for) { + return true + } + } + return false +} + +/* */ + +var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/; +var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/; + +// keyCode aliases +var keyCodes = { + esc: 27, + tab: 9, + enter: 13, + space: 32, + up: 38, + left: 37, + right: 39, + down: 40, + 'delete': [8, 46] +}; + +// #4868: modifiers that prevent the execution of the listener +// need to explicitly return null so that we can determine whether to remove +// the listener for .once +var genGuard = function (condition) { return ("if(" + condition + ")return null;"); }; + +var modifierCode = { + stop: '$event.stopPropagation();', + prevent: '$event.preventDefault();', + self: genGuard("$event.target !== $event.currentTarget"), + ctrl: genGuard("!$event.ctrlKey"), + shift: genGuard("!$event.shiftKey"), + alt: genGuard("!$event.altKey"), + meta: genGuard("!$event.metaKey"), + left: genGuard("'button' in $event && $event.button !== 0"), + middle: genGuard("'button' in $event && $event.button !== 1"), + right: genGuard("'button' in $event && $event.button !== 2") +}; + +function genHandlers ( + events, + isNative, + warn +) { + var res = isNative ? 'nativeOn:{' : 'on:{'; + for (var name in events) { + var handler = events[name]; + // #5330: warn click.right, since right clicks do not actually fire click events. + if ("development" !== 'production' && + name === 'click' && + handler && handler.modifiers && handler.modifiers.right + ) { + warn( + "Use \"contextmenu\" instead of \"click.right\" since right clicks " + + "do not actually fire \"click\" events." + ); + } + res += "\"" + name + "\":" + (genHandler(name, handler)) + ","; + } + return res.slice(0, -1) + '}' +} + +function genHandler ( + name, + handler +) { + if (!handler) { + return 'function(){}' + } + + if (Array.isArray(handler)) { + return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]") + } + + var isMethodPath = simplePathRE.test(handler.value); + var isFunctionExpression = fnExpRE.test(handler.value); + + if (!handler.modifiers) { + return isMethodPath || isFunctionExpression + ? handler.value + : ("function($event){" + (handler.value) + "}") // inline statement + } else { + var code = ''; + var genModifierCode = ''; + var keys = []; + for (var key in handler.modifiers) { + if (modifierCode[key]) { + genModifierCode += modifierCode[key]; + // left/right + if (keyCodes[key]) { + keys.push(key); + } + } else { + keys.push(key); + } + } + if (keys.length) { + code += genKeyFilter(keys); + } + // Make sure modifiers like prevent and stop get executed after key filtering + if (genModifierCode) { + code += genModifierCode; + } + var handlerCode = isMethodPath + ? handler.value + '($event)' + : isFunctionExpression + ? ("(" + (handler.value) + ")($event)") + : handler.value; + return ("function($event){" + code + handlerCode + "}") + } +} + +function genKeyFilter (keys) { + return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;") +} + +function genFilterCode (key) { + var keyVal = parseInt(key, 10); + if (keyVal) { + return ("$event.keyCode!==" + keyVal) + } + var alias = keyCodes[key]; + return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")") +} + +/* */ + +function on (el, dir) { + if ("development" !== 'production' && dir.modifiers) { + warn("v-on without argument does not support modifiers."); + } + el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); }; +} + +/* */ + +function bind$1 (el, dir) { + el.wrapData = function (code) { + return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")") + }; +} + +/* */ + +var baseDirectives = { + on: on, + bind: bind$1, + cloak: noop +}; + +/* */ + +var CodegenState = function CodegenState (options) { + this.options = options; + this.warn = options.warn || baseWarn; + this.transforms = pluckModuleFunction(options.modules, 'transformCode'); + this.dataGenFns = pluckModuleFunction(options.modules, 'genData'); + this.directives = extend(extend({}, baseDirectives), options.directives); + var isReservedTag = options.isReservedTag || no; + this.maybeComponent = function (el) { return !isReservedTag(el.tag); }; + this.onceId = 0; + this.staticRenderFns = []; +}; + + + +function generate ( + ast, + options +) { + var state = new CodegenState(options); + var code = ast ? genElement(ast, state) : '_c("div")'; + return { + render: ("with(this){return " + code + "}"), + staticRenderFns: state.staticRenderFns + } +} + +function genElement (el, state) { + if (el.staticRoot && !el.staticProcessed) { + return genStatic(el, state) + } else if (el.once && !el.onceProcessed) { + return genOnce(el, state) + } else if (el.for && !el.forProcessed) { + return genFor(el, state) + } else if (el.if && !el.ifProcessed) { + return genIf(el, state) + } else if (el.tag === 'template' && !el.slotTarget) { + return genChildren(el, state) || 'void 0' + } else if (el.tag === 'slot') { + return genSlot(el, state) + } else { + // component or element + var code; + if (el.component) { + code = genComponent(el.component, el, state); + } else { + var data = el.plain ? undefined : genData$2(el, state); + + var children = el.inlineTemplate ? null : genChildren(el, state, true); + code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")"; + } + // module transforms + for (var i = 0; i < state.transforms.length; i++) { + code = state.transforms[i](el, code); + } + return code + } +} + +// hoist static sub-trees out +function genStatic (el, state) { + el.staticProcessed = true; + state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}")); + return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")") +} + +// v-once +function genOnce (el, state) { + el.onceProcessed = true; + if (el.if && !el.ifProcessed) { + return genIf(el, state) + } else if (el.staticInFor) { + var key = ''; + var parent = el.parent; + while (parent) { + if (parent.for) { + key = parent.key; + break + } + parent = parent.parent; + } + if (!key) { + "development" !== 'production' && state.warn( + "v-once can only be used inside v-for that is keyed. " + ); + return genElement(el, state) + } + return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")") + } else { + return genStatic(el, state) + } +} + +function genIf ( + el, + state, + altGen, + altEmpty +) { + el.ifProcessed = true; // avoid recursion + return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty) +} + +function genIfConditions ( + conditions, + state, + altGen, + altEmpty +) { + if (!conditions.length) { + return altEmpty || '_e()' + } + + var condition = conditions.shift(); + if (condition.exp) { + return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty))) + } else { + return ("" + (genTernaryExp(condition.block))) + } + + // v-if with v-once should generate code like (a)?_m(0):_m(1) + function genTernaryExp (el) { + return altGen + ? altGen(el, state) + : el.once + ? genOnce(el, state) + : genElement(el, state) + } +} + +function genFor ( + el, + state, + altGen, + altHelper +) { + var exp = el.for; + var alias = el.alias; + var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : ''; + var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : ''; + + if ("development" !== 'production' && + state.maybeComponent(el) && + el.tag !== 'slot' && + el.tag !== 'template' && + !el.key + ) { + state.warn( + "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " + + "v-for should have explicit keys. " + + "See https://vuejs.org/guide/list.html#key for more info.", + true /* tip */ + ); + } + + el.forProcessed = true; // avoid recursion + return (altHelper || '_l') + "((" + exp + ")," + + "function(" + alias + iterator1 + iterator2 + "){" + + "return " + ((altGen || genElement)(el, state)) + + '})' +} + +function genData$2 (el, state) { + var data = '{'; + + // directives first. + // directives may mutate the el's other properties before they are generated. + var dirs = genDirectives(el, state); + if (dirs) { data += dirs + ','; } + + // key + if (el.key) { + data += "key:" + (el.key) + ","; + } + // ref + if (el.ref) { + data += "ref:" + (el.ref) + ","; + } + if (el.refInFor) { + data += "refInFor:true,"; + } + // pre + if (el.pre) { + data += "pre:true,"; + } + // record original tag name for components using "is" attribute + if (el.component) { + data += "tag:\"" + (el.tag) + "\","; + } + // module data generation functions + for (var i = 0; i < state.dataGenFns.length; i++) { + data += state.dataGenFns[i](el); + } + // attributes + if (el.attrs) { + data += "attrs:{" + (genProps(el.attrs)) + "},"; + } + // DOM props + if (el.props) { + data += "domProps:{" + (genProps(el.props)) + "},"; + } + // event handlers + if (el.events) { + data += (genHandlers(el.events, false, state.warn)) + ","; + } + if (el.nativeEvents) { + data += (genHandlers(el.nativeEvents, true, state.warn)) + ","; + } + // slot target + if (el.slotTarget) { + data += "slot:" + (el.slotTarget) + ","; + } + // scoped slots + if (el.scopedSlots) { + data += (genScopedSlots(el.scopedSlots, state)) + ","; + } + // component v-model + if (el.model) { + data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},"; + } + // inline-template + if (el.inlineTemplate) { + var inlineTemplate = genInlineTemplate(el, state); + if (inlineTemplate) { + data += inlineTemplate + ","; + } + } + data = data.replace(/,$/, '') + '}'; + // v-bind data wrap + if (el.wrapData) { + data = el.wrapData(data); + } + // v-on data wrap + if (el.wrapListeners) { + data = el.wrapListeners(data); + } + return data +} + +function genDirectives (el, state) { + var dirs = el.directives; + if (!dirs) { return } + var res = 'directives:['; + var hasRuntime = false; + var i, l, dir, needRuntime; + for (i = 0, l = dirs.length; i < l; i++) { + dir = dirs[i]; + needRuntime = true; + var gen = state.directives[dir.name]; + if (gen) { + // compile-time directive that manipulates AST. + // returns true if it also needs a runtime counterpart. + needRuntime = !!gen(el, dir, state.warn); + } + if (needRuntime) { + hasRuntime = true; + res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},"; + } + } + if (hasRuntime) { + return res.slice(0, -1) + ']' + } +} + +function genInlineTemplate (el, state) { + var ast = el.children[0]; + if ("development" !== 'production' && ( + el.children.length > 1 || ast.type !== 1 + )) { + state.warn('Inline-template components must have exactly one child element.'); + } + if (ast.type === 1) { + var inlineRenderFns = generate(ast, state.options); + return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}") + } +} + +function genScopedSlots ( + slots, + state +) { + return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) { + return genScopedSlot(key, slots[key], state) + }).join(',')) + "])") +} + +function genScopedSlot ( + key, + el, + state +) { + if (el.for && !el.forProcessed) { + return genForScopedSlot(key, el, state) + } + return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" + + "return " + (el.tag === 'template' + ? genChildren(el, state) || 'void 0' + : genElement(el, state)) + "}}" +} + +function genForScopedSlot ( + key, + el, + state +) { + var exp = el.for; + var alias = el.alias; + var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : ''; + var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : ''; + el.forProcessed = true; // avoid recursion + return "_l((" + exp + ")," + + "function(" + alias + iterator1 + iterator2 + "){" + + "return " + (genScopedSlot(key, el, state)) + + '})' +} + +function genChildren ( + el, + state, + checkSkip, + altGenElement, + altGenNode +) { + var children = el.children; + if (children.length) { + var el$1 = children[0]; + // optimize single v-for + if (children.length === 1 && + el$1.for && + el$1.tag !== 'template' && + el$1.tag !== 'slot' + ) { + return (altGenElement || genElement)(el$1, state) + } + var normalizationType = checkSkip + ? getNormalizationType(children, state.maybeComponent) + : 0; + var gen = altGenNode || genNode; + return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : '')) + } +} + +// determine the normalization needed for the children array. +// 0: no normalization needed +// 1: simple normalization needed (possible 1-level deep nested array) +// 2: full normalization needed +function getNormalizationType ( + children, + maybeComponent +) { + var res = 0; + for (var i = 0; i < children.length; i++) { + var el = children[i]; + if (el.type !== 1) { + continue + } + if (needsNormalization(el) || + (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) { + res = 2; + break + } + if (maybeComponent(el) || + (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) { + res = 1; + } + } + return res +} + +function needsNormalization (el) { + return el.for !== undefined || el.tag === 'template' || el.tag === 'slot' +} + +function genNode (node, state) { + if (node.type === 1) { + return genElement(node, state) + } if (node.type === 3 && node.isComment) { + return genComment(node) + } else { + return genText(node) + } +} + +function genText (text) { + return ("_v(" + (text.type === 2 + ? text.expression // no need for () because already wrapped in _s() + : transformSpecialNewlines(JSON.stringify(text.text))) + ")") +} + +function genComment (comment) { + return ("_e('" + (comment.text) + "')") +} + +function genSlot (el, state) { + var slotName = el.slotName || '"default"'; + var children = genChildren(el, state); + var res = "_t(" + slotName + (children ? ("," + children) : ''); + var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}"); + var bind$$1 = el.attrsMap['v-bind']; + if ((attrs || bind$$1) && !children) { + res += ",null"; + } + if (attrs) { + res += "," + attrs; + } + if (bind$$1) { + res += (attrs ? '' : ',null') + "," + bind$$1; + } + return res + ')' +} + +// componentName is el.component, take it as argument to shun flow's pessimistic refinement +function genComponent ( + componentName, + el, + state +) { + var children = el.inlineTemplate ? null : genChildren(el, state, true); + return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")") +} + +function genProps (props) { + var res = ''; + for (var i = 0; i < props.length; i++) { + var prop = props[i]; + res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ","; + } + return res.slice(0, -1) +} + +// #3895, #4268 +function transformSpecialNewlines (text) { + return text + .replace(/\u2028/g, '\\u2028') + .replace(/\u2029/g, '\\u2029') +} + +/* */ + +// these keywords should not appear inside expressions, but operators like +// typeof, instanceof and in are allowed +var prohibitedKeywordRE = new RegExp('\\b' + ( + 'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' + + 'super,throw,while,yield,delete,export,import,return,switch,default,' + + 'extends,finally,continue,debugger,function,arguments' +).split(',').join('\\b|\\b') + '\\b'); + +// these unary operators should not be used as property/method names +var unaryOperatorsRE = new RegExp('\\b' + ( + 'delete,typeof,void' +).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)'); + +// check valid identifier for v-for +var identRE = /[A-Za-z_$][\w$]*/; + +// strip strings in expressions +var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g; + +// detect problematic expressions in a template +function detectErrors (ast) { + var errors = []; + if (ast) { + checkNode(ast, errors); + } + return errors +} + +function checkNode (node, errors) { + if (node.type === 1) { + for (var name in node.attrsMap) { + if (dirRE.test(name)) { + var value = node.attrsMap[name]; + if (value) { + if (name === 'v-for') { + checkFor(node, ("v-for=\"" + value + "\""), errors); + } else if (onRE.test(name)) { + checkEvent(value, (name + "=\"" + value + "\""), errors); + } else { + checkExpression(value, (name + "=\"" + value + "\""), errors); + } + } + } + } + if (node.children) { + for (var i = 0; i < node.children.length; i++) { + checkNode(node.children[i], errors); + } + } + } else if (node.type === 2) { + checkExpression(node.expression, node.text, errors); + } +} + +function checkEvent (exp, text, errors) { + var stipped = exp.replace(stripStringRE, ''); + var keywordMatch = stipped.match(unaryOperatorsRE); + if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') { + errors.push( + "avoid using JavaScript unary operator as property name: " + + "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()) + ); + } + checkExpression(exp, text, errors); +} + +function checkFor (node, text, errors) { + checkExpression(node.for || '', text, errors); + checkIdentifier(node.alias, 'v-for alias', text, errors); + checkIdentifier(node.iterator1, 'v-for iterator', text, errors); + checkIdentifier(node.iterator2, 'v-for iterator', text, errors); +} + +function checkIdentifier (ident, type, text, errors) { + if (typeof ident === 'string' && !identRE.test(ident)) { + errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim()))); + } +} + +function checkExpression (exp, text, errors) { + try { + new Function(("return " + exp)); + } catch (e) { + var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE); + if (keywordMatch) { + errors.push( + "avoid using JavaScript keyword as property name: " + + "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()) + ); + } else { + errors.push(("invalid expression: " + (text.trim()))); + } + } +} + +/* */ + +function createFunction (code, errors) { + try { + return new Function(code) + } catch (err) { + errors.push({ err: err, code: code }); + return noop + } +} + +function createCompileToFunctionFn (compile) { + var cache = Object.create(null); + + return function compileToFunctions ( + template, + options, + vm + ) { + options = options || {}; + + /* istanbul ignore if */ + { + // detect possible CSP restriction + try { + new Function('return 1'); + } catch (e) { + if (e.toString().match(/unsafe-eval|CSP/)) { + warn( + 'It seems you are using the standalone build of Vue.js in an ' + + 'environment with Content Security Policy that prohibits unsafe-eval. ' + + 'The template compiler cannot work in this environment. Consider ' + + 'relaxing the policy to allow unsafe-eval or pre-compiling your ' + + 'templates into render functions.' + ); + } + } + } + + // check cache + var key = options.delimiters + ? String(options.delimiters) + template + : template; + if (cache[key]) { + return cache[key] + } + + // compile + var compiled = compile(template, options); + + // check compilation errors/tips + { + if (compiled.errors && compiled.errors.length) { + warn( + "Error compiling template:\n\n" + template + "\n\n" + + compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n', + vm + ); + } + if (compiled.tips && compiled.tips.length) { + compiled.tips.forEach(function (msg) { return tip(msg, vm); }); + } + } + + // turn code into functions + var res = {}; + var fnGenErrors = []; + res.render = createFunction(compiled.render, fnGenErrors); + res.staticRenderFns = compiled.staticRenderFns.map(function (code) { + return createFunction(code, fnGenErrors) + }); + + // check function generation errors. + // this should only happen if there is a bug in the compiler itself. + // mostly for codegen development use + /* istanbul ignore if */ + { + if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) { + warn( + "Failed to generate render function:\n\n" + + fnGenErrors.map(function (ref) { + var err = ref.err; + var code = ref.code; + + return ((err.toString()) + " in\n\n" + code + "\n"); + }).join('\n'), + vm + ); + } + } + + return (cache[key] = res) + } +} + +/* */ + +function createCompilerCreator (baseCompile) { + return function createCompiler (baseOptions) { + function compile ( + template, + options + ) { + var finalOptions = Object.create(baseOptions); + var errors = []; + var tips = []; + finalOptions.warn = function (msg, tip) { + (tip ? tips : errors).push(msg); + }; + + if (options) { + // merge custom modules + if (options.modules) { + finalOptions.modules = + (baseOptions.modules || []).concat(options.modules); + } + // merge custom directives + if (options.directives) { + finalOptions.directives = extend( + Object.create(baseOptions.directives), + options.directives + ); + } + // copy other options + for (var key in options) { + if (key !== 'modules' && key !== 'directives') { + finalOptions[key] = options[key]; + } + } + } + + var compiled = baseCompile(template, finalOptions); + { + errors.push.apply(errors, detectErrors(compiled.ast)); + } + compiled.errors = errors; + compiled.tips = tips; + return compiled + } + + return { + compile: compile, + compileToFunctions: createCompileToFunctionFn(compile) + } + } +} + +/* */ + +// `createCompilerCreator` allows creating compilers that use alternative +// parser/optimizer/codegen, e.g the SSR optimizing compiler. +// Here we just export a default compiler using the default parts. +var createCompiler = createCompilerCreator(function baseCompile ( + template, + options +) { + var ast = parse(template.trim(), options); + optimize(ast, options); + var code = generate(ast, options); + return { + ast: ast, + render: code.render, + staticRenderFns: code.staticRenderFns + } +}); + +/* */ + +var ref$1 = createCompiler(baseOptions); +var compileToFunctions = ref$1.compileToFunctions; + +/* */ + +var idToTemplate = cached(function (id) { + var el = query(id); + return el && el.innerHTML +}); + +var mount = Vue$3.prototype.$mount; +Vue$3.prototype.$mount = function ( + el, + hydrating +) { + el = el && query(el); + + /* istanbul ignore if */ + if (el === document.body || el === document.documentElement) { + "development" !== 'production' && warn( + "Do not mount Vue to <html> or <body> - mount to normal elements instead." + ); + return this + } + + var options = this.$options; + // resolve template/el and convert to render function + if (!options.render) { + var template = options.template; + if (template) { + if (typeof template === 'string') { + if (template.charAt(0) === '#') { + template = idToTemplate(template); + /* istanbul ignore if */ + if ("development" !== 'production' && !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 ("development" !== 'production' && config.performance && mark) { + mark('compile'); + } + + var ref = compileToFunctions(template, { + shouldDecodeNewlines: shouldDecodeNewlines, + delimiters: options.delimiters, + comments: options.comments + }, this); + var render = ref.render; + var staticRenderFns = ref.staticRenderFns; + options.render = render; + options.staticRenderFns = staticRenderFns; + + /* istanbul ignore if */ + if ("development" !== 'production' && config.performance && mark) { + mark('compile end'); + measure(((this._name) + " compile"), 'compile', 'compile end'); + } + } + } + return mount.call(this, el, hydrating) +}; + +/** + * Get outerHTML of elements, taking care + * of SVG elements in IE as well. + */ +function getOuterHTML (el) { + if (el.outerHTML) { + return el.outerHTML + } else { + var container = document.createElement('div'); + container.appendChild(el.cloneNode(true)); + return container.innerHTML + } +} + +Vue$3.compile = compileToFunctions; + +return Vue$3; + +}))); -- Gitblit v1.8.0