diff options
author | Thedro Neely <thedroneely@gmail.com> | 2018-12-16 11:50:21 -0500 |
---|---|---|
committer | Thedro Neely <thedroneely@gmail.com> | 2018-12-16 11:50:21 -0500 |
commit | b3613833ec64884dd5d42667f7c4221156806f9e (patch) | |
tree | 7710d5813fe84b78274c5f923b33538805e2e3eb /public | |
parent | c4a152c46140c63184ccc409f991357999b8b6e7 (diff) | |
download | edwinmattiacci.com-b3613833ec64884dd5d42667f7c4221156806f9e.tar.gz edwinmattiacci.com-b3613833ec64884dd5d42667f7c4221156806f9e.tar.bz2 edwinmattiacci.com-b3613833ec64884dd5d42667f7c4221156806f9e.zip |
public/js: Add Vue
Diffstat (limited to 'public')
-rw-r--r-- | public/js/Vue.js | 1 | ||||
-rw-r--r-- | public/js/VueDevelopment.js | 10952 |
2 files changed, 10953 insertions, 0 deletions
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Only returns true + * for plain JavaScript objects. + */ +function isPlainObject (obj) { + return _toString.call(obj) === '[object Object]' +} + +function isRegExp (v) { + return _toString.call(v) === '[object RegExp]' +} + +/** + * Check if val is a valid array index. + */ +function isValidArrayIndex (val) { + var n = parseFloat(String(val)); + return n >= 0 && Math.floor(n) === n && isFinite(val) +} + +/** + * Convert a value to a string that is actually rendered. + */ +function toString (val) { + return val == null + ? '' + : typeof val === 'object' + ? JSON.stringify(val, null, 2) + : String(val) +} + +/** + * Convert a input value to a number for persistence. + * If the conversion fails, return original string. + */ +function toNumber (val) { + var n = parseFloat(val); + return isNaN(n) ? val : n +} + +/** + * Make a map and return a function for checking if a key + * is in that map. + */ +function makeMap ( + str, + expectsLowerCase +) { + var map = Object.create(null); + var list = str.split(','); + for (var i = 0; i < list.length; i++) { + map[list[i]] = true; + } + return expectsLowerCase + ? function (val) { return map[val.toLowerCase()]; } + : function (val) { return map[val]; } +} + +/** + * Check if a tag is a built-in tag. + */ +var isBuiltInTag = makeMap('slot,component', true); + +/** + * Check if a attribute is a reserved attribute. + */ +var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is'); + +/** + * Remove an item from an array + */ +function remove (arr, item) { + if (arr.length) { + var index = arr.indexOf(item); + if (index > -1) { + return arr.splice(index, 1) + } + } +} + +/** + * Check whether the object has the property. + */ +var hasOwnProperty = Object.prototype.hasOwnProperty; +function hasOwn (obj, key) { + return hasOwnProperty.call(obj, key) +} + +/** + * Create a cached version of a pure function. + */ +function cached (fn) { + var cache = Object.create(null); + return (function cachedFn (str) { + var hit = cache[str]; + return hit || (cache[str] = fn(str)) + }) +} + +/** + * Camelize a hyphen-delimited string. + */ +var camelizeRE = /-(\w)/g; +var camelize = cached(function (str) { + return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; }) +}); + +/** + * Capitalize a string. + */ +var capitalize = cached(function (str) { + return str.charAt(0).toUpperCase() + str.slice(1) +}); + +/** + * Hyphenate a camelCase string. + */ +var hyphenateRE = /\B([A-Z])/g; +var hyphenate = cached(function (str) { + return str.replace(hyphenateRE, '-$1').toLowerCase() +}); + +/** + * Simple bind polyfill for environments that do not support it... e.g. + * PhantomJS 1.x. Technically we don't need this anymore since native bind is + * now more performant in most browsers, but removing it would be breaking for + * code that was able to run in PhantomJS 1.x, so this must be kept for + * backwards compatibility. + */ + +/* istanbul ignore next */ +function polyfillBind (fn, ctx) { + function boundFn (a) { + var l = arguments.length; + return l + ? l > 1 + ? fn.apply(ctx, arguments) + : fn.call(ctx, a) + : fn.call(ctx) + } + + boundFn._length = fn.length; + return boundFn +} + +function nativeBind (fn, ctx) { + return fn.bind(ctx) +} + +var bind = Function.prototype.bind + ? nativeBind + : polyfillBind; + +/** + * Convert an Array-like object to a real Array. + */ +function toArray (list, start) { + start = start || 0; + var i = list.length - start; + var ret = new Array(i); + while (i--) { + ret[i] = list[i + start]; + } + return ret +} + +/** + * Mix properties into target object. + */ +function extend (to, _from) { + for (var key in _from) { + to[key] = _from[key]; + } + return to +} + +/** + * Merge an Array of Objects into a single Object. + */ +function toObject (arr) { + var res = {}; + for (var i = 0; i < arr.length; i++) { + if (arr[i]) { + extend(res, arr[i]); + } + } + return res +} + +/** + * Perform no operation. + * Stubbing args to make Flow happy without leaving useless transpiled code + * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/) + */ +function noop (a, b, c) {} + +/** + * Always return false. + */ +var no = function (a, b, c) { return false; }; + +/** + * Return same value + */ +var identity = function (_) { return _; }; + +/** + * Generate a static keys string from compiler modules. + */ +function genStaticKeys (modules) { + return modules.reduce(function (keys, m) { + return keys.concat(m.staticKeys || []) + }, []).join(',') +} + +/** + * Check if two values are loosely equal - that is, + * if they are plain objects, do they have the same shape? + */ +function looseEqual (a, b) { + if (a === b) { return true } + var isObjectA = isObject(a); + var isObjectB = isObject(b); + if (isObjectA && isObjectB) { + try { + var isArrayA = Array.isArray(a); + var isArrayB = Array.isArray(b); + if (isArrayA && isArrayB) { + return a.length === b.length && a.every(function (e, i) { + return looseEqual(e, b[i]) + }) + } else if (!isArrayA && !isArrayB) { + var keysA = Object.keys(a); + var keysB = Object.keys(b); + return keysA.length === keysB.length && keysA.every(function (key) { + return looseEqual(a[key], b[key]) + }) + } else { + /* istanbul ignore next */ + return false + } + } catch (e) { + /* istanbul ignore next */ + return false + } + } else if (!isObjectA && !isObjectB) { + return String(a) === String(b) + } else { + return false + } +} + +function looseIndexOf (arr, val) { + for (var i = 0; i < arr.length; i++) { + if (looseEqual(arr[i], val)) { return i } + } + return -1 +} + +/** + * Ensure a function is called only once. + */ +function once (fn) { + var called = false; + return function () { + if (!called) { + called = true; + fn.apply(this, arguments); + } + } +} + +var SSR_ATTR = 'data-server-rendered'; + +var ASSET_TYPES = [ + 'component', + 'directive', + 'filter' +]; + +var LIFECYCLE_HOOKS = [ + 'beforeCreate', + 'created', + 'beforeMount', + 'mounted', + 'beforeUpdate', + 'updated', + 'beforeDestroy', + 'destroyed', + 'activated', + 'deactivated', + 'errorCaptured' +]; + +/* */ + +var config = ({ + /** + * Option merge strategies (used in core/util/options) + */ + // $flow-disable-line + optionMergeStrategies: Object.create(null), + + /** + * Whether to suppress warnings. + */ + silent: false, + + /** + * Show production mode tip message on boot? + */ + productionTip: "development" !== 'production', + + /** + * Whether to enable devtools + */ + devtools: "development" !== 'production', + + /** + * Whether to record perf + */ + performance: false, + + /** + * Error handler for watcher errors + */ + errorHandler: null, + + /** + * Warn handler for watcher warns + */ + warnHandler: null, + + /** + * Ignore certain custom elements + */ + ignoredElements: [], + + /** + * Custom user key aliases for v-on + */ + // $flow-disable-line + keyCodes: Object.create(null), + + /** + * Check if a tag is reserved so that it cannot be registered as a + * component. This is platform-dependent and may be overwritten. + */ + isReservedTag: no, + + /** + * Check if an attribute is reserved so that it cannot be used as a component + * prop. This is platform-dependent and may be overwritten. + */ + isReservedAttr: no, + + /** + * Check if a tag is an unknown element. + * Platform-dependent. + */ + isUnknownElement: no, + + /** + * Get the namespace of an element + */ + getTagNamespace: noop, + + /** + * Parse the real tag name for the specific platform. + */ + parsePlatformTagName: identity, + + /** + * Check if an attribute must be bound using property, e.g. value + * Platform-dependent. + */ + mustUseProp: no, + + /** + * Exposed for legacy reasons + */ + _lifecycleHooks: LIFECYCLE_HOOKS +}) + +/* */ + +/** + * Check if a string starts with $ or _ + */ +function isReserved (str) { + var c = (str + '').charCodeAt(0); + return c === 0x24 || c === 0x5F +} + +/** + * Define a property. + */ +function def (obj, key, val, enumerable) { + Object.defineProperty(obj, key, { + value: val, + enumerable: !!enumerable, + writable: true, + configurable: true + }); +} + +/** + * Parse simple path. + */ +var bailRE = /[^\w.$]/; +function parsePath (path) { + if (bailRE.test(path)) { + return + } + var segments = path.split('.'); + return function (obj) { + for (var i = 0; i < segments.length; i++) { + if (!obj) { return } + obj = obj[segments[i]]; + } + return obj + } +} + +/* */ + +// can we use __proto__? +var hasProto = '__proto__' in {}; + +// Browser environment sniffing +var inBrowser = typeof window !== 'undefined'; +var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform; +var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase(); +var UA = inBrowser && window.navigator.userAgent.toLowerCase(); +var isIE = UA && /msie|trident/.test(UA); +var isIE9 = UA && UA.indexOf('msie 9.0') > 0; +var isEdge = UA && UA.indexOf('edge/') > 0; +var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android'); +var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios'); +var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge; + +// Firefox has a "watch" function on Object.prototype... +var nativeWatch = ({}).watch; + +var supportsPassive = false; +if (inBrowser) { + try { + var opts = {}; + Object.defineProperty(opts, 'passive', ({ + get: function get () { + /* istanbul ignore next */ + supportsPassive = true; + } + })); // https://github.com/facebook/flow/issues/285 + window.addEventListener('test-passive', null, opts); + } catch (e) {} +} + +// this needs to be lazy-evaled because vue may be required before +// vue-server-renderer can set VUE_ENV +var _isServer; +var isServerRendering = function () { + if (_isServer === undefined) { + /* istanbul ignore if */ + if (!inBrowser && !inWeex && typeof global !== 'undefined') { + // detect presence of vue-server-renderer and avoid + // Webpack shimming the process + _isServer = global['process'].env.VUE_ENV === 'server'; + } else { + _isServer = false; + } + } + return _isServer +}; + +// detect devtools +var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__; + +/* istanbul ignore next */ +function isNative (Ctor) { + return typeof Ctor === 'function' && /native code/.test(Ctor.toString()) +} + +var hasSymbol = + typeof Symbol !== 'undefined' && isNative(Symbol) && + typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys); + +var _Set; +/* istanbul ignore if */ // $flow-disable-line +if (typeof Set !== 'undefined' && isNative(Set)) { + // use native Set when available. + _Set = Set; +} else { + // a non-standard Set polyfill that only works with primitive keys. + _Set = (function () { + function Set () { + this.set = Object.create(null); + } + Set.prototype.has = function has (key) { + return this.set[key] === true + }; + Set.prototype.add = function add (key) { + this.set[key] = true; + }; + Set.prototype.clear = function clear () { + this.set = Object.create(null); + }; + + return Set; + }()); +} + +/* */ + +var warn = noop; +var tip = noop; +var generateComponentTrace = (noop); // work around flow check +var formatComponentName = (noop); + +{ + var hasConsole = typeof console !== 'undefined'; + var classifyRE = /(?:^|[-_])(\w)/g; + var classify = function (str) { return str + .replace(classifyRE, function (c) { return c.toUpperCase(); }) + .replace(/[-_]/g, ''); }; + + warn = function (msg, vm) { + var trace = vm ? generateComponentTrace(vm) : ''; + + if (config.warnHandler) { + config.warnHandler.call(null, msg, vm, trace); + } else if (hasConsole && (!config.silent)) { + console.error(("[Vue warn]: " + msg + trace)); + } + }; + + tip = function (msg, vm) { + if (hasConsole && (!config.silent)) { + console.warn("[Vue tip]: " + msg + ( + vm ? generateComponentTrace(vm) : '' + )); + } + }; + + formatComponentName = function (vm, includeFile) { + if (vm.$root === vm) { + return '<Root>' + } + var options = typeof vm === 'function' && vm.cid != null + ? vm.options + : vm._isVue + ? vm.$options || vm.constructor.options + : vm || {}; + var name = options.name || options._componentTag; + var file = options.__file; + if (!name && file) { + var match = file.match(/([^/\\]+)\.vue$/); + name = match && match[1]; + } + + return ( + (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") + + (file && includeFile !== false ? (" at " + file) : '') + ) + }; + + var repeat = function (str, n) { + var res = ''; + while (n) { + if (n % 2 === 1) { res += str; } + if (n > 1) { str += str; } + n >>= 1; + } + return res + }; + + generateComponentTrace = function (vm) { + if (vm._isVue && vm.$parent) { + var tree = []; + var currentRecursiveSequence = 0; + while (vm) { + if (tree.length > 0) { + var last = tree[tree.length - 1]; + if (last.constructor === vm.constructor) { + currentRecursiveSequence++; + vm = vm.$parent; + continue + } else if (currentRecursiveSequence > 0) { + tree[tree.length - 1] = [last, currentRecursiveSequence]; + currentRecursiveSequence = 0; + } + } + tree.push(vm); + vm = vm.$parent; + } + return '\n\nfound in\n\n' + tree + .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm) + ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)") + : formatComponentName(vm))); }) + .join('\n') + } else { + return ("\n\n(found in " + (formatComponentName(vm)) + ")") + } + }; +} + +/* */ + + +var uid = 0; + +/** + * A dep is an observable that can have multiple + * directives subscribing to it. + */ +var Dep = function Dep () { + this.id = uid++; + this.subs = []; +}; + +Dep.prototype.addSub = function addSub (sub) { + this.subs.push(sub); +}; + +Dep.prototype.removeSub = function removeSub (sub) { + remove(this.subs, sub); +}; + +Dep.prototype.depend = function depend () { + if (Dep.target) { + Dep.target.addDep(this); + } +}; + +Dep.prototype.notify = function notify () { + // stabilize the subscriber list first + var subs = this.subs.slice(); + for (var i = 0, l = subs.length; i < l; i++) { + subs[i].update(); + } +}; + +// the current target watcher being evaluated. +// this is globally unique because there could be only one +// watcher being evaluated at any time. +Dep.target = null; +var targetStack = []; + +function pushTarget (_target) { + if (Dep.target) { targetStack.push(Dep.target); } + Dep.target = _target; +} + +function popTarget () { + Dep.target = targetStack.pop(); +} + +/* */ + +var VNode = function VNode ( + tag, + data, + children, + text, + elm, + context, + componentOptions, + asyncFactory +) { + this.tag = tag; + this.data = data; + this.children = children; + this.text = text; + this.elm = elm; + this.ns = undefined; + this.context = context; + this.fnContext = undefined; + this.fnOptions = undefined; + this.fnScopeId = undefined; + this.key = data && data.key; + this.componentOptions = componentOptions; + this.componentInstance = undefined; + this.parent = undefined; + this.raw = false; + this.isStatic = false; + this.isRootInsert = true; + this.isComment = false; + this.isCloned = false; + this.isOnce = false; + this.asyncFactory = asyncFactory; + this.asyncMeta = undefined; + this.isAsyncPlaceholder = false; +}; + +var prototypeAccessors = { child: { configurable: true } }; + +// DEPRECATED: alias for componentInstance for backwards compat. +/* istanbul ignore next */ +prototypeAccessors.child.get = function () { + return this.componentInstance +}; + +Object.defineProperties( VNode.prototype, prototypeAccessors ); + +var createEmptyVNode = function (text) { + if ( text === void 0 ) text = ''; + + var node = new VNode(); + node.text = text; + node.isComment = true; + return node +}; + +function createTextVNode (val) { + return new VNode(undefined, undefined, undefined, String(val)) +} + +// optimized shallow clone +// used for static nodes and slot nodes because they may be reused across +// multiple renders, cloning them avoids errors when DOM manipulations rely +// on their elm reference. +function cloneVNode (vnode) { + var cloned = new VNode( + vnode.tag, + vnode.data, + vnode.children, + vnode.text, + vnode.elm, + vnode.context, + vnode.componentOptions, + vnode.asyncFactory + ); + cloned.ns = vnode.ns; + cloned.isStatic = vnode.isStatic; + cloned.key = vnode.key; + cloned.isComment = vnode.isComment; + cloned.fnContext = vnode.fnContext; + cloned.fnOptions = vnode.fnOptions; + cloned.fnScopeId = vnode.fnScopeId; + cloned.isCloned = true; + return cloned +} + +/* + * not type checking this file because flow doesn't play well with + * dynamically accessing methods on Array prototype + */ + +var arrayProto = Array.prototype; +var arrayMethods = Object.create(arrayProto); + +var methodsToPatch = [ + 'push', + 'pop', + 'shift', + 'unshift', + 'splice', + 'sort', + 'reverse' +]; + +/** + * Intercept mutating methods and emit events + */ +methodsToPatch.forEach(function (method) { + // cache original method + var original = arrayProto[method]; + def(arrayMethods, method, function mutator () { + var args = [], len = arguments.length; + while ( len-- ) args[ len ] = arguments[ len ]; + + var result = original.apply(this, args); + var ob = this.__ob__; + var inserted; + switch (method) { + case 'push': + case 'unshift': + inserted = args; + break + case 'splice': + inserted = args.slice(2); + break + } + if (inserted) { ob.observeArray(inserted); } + // notify change + ob.dep.notify(); + return result + }); +}); + +/* */ + +var arrayKeys = Object.getOwnPropertyNames(arrayMethods); + +/** + * In some cases we may want to disable observation inside a component's + * update computation. + */ +var shouldObserve = true; + +function toggleObserving (value) { + shouldObserve = value; +} + +/** + * Observer class that is attached to each observed + * object. Once attached, the observer converts the target + * object's property keys into getter/setters that + * collect dependencies and dispatch updates. + */ +var Observer = function Observer (value) { + this.value = value; + this.dep = new Dep(); + this.vmCount = 0; + def(value, '__ob__', this); + if (Array.isArray(value)) { + var augment = hasProto + ? protoAugment + : copyAugment; + augment(value, arrayMethods, arrayKeys); + this.observeArray(value); + } else { + this.walk(value); + } +}; + +/** + * Walk through each property and convert them into + * getter/setters. This method should only be called when + * value type is Object. + */ +Observer.prototype.walk = function walk (obj) { + var keys = Object.keys(obj); + for (var i = 0; i < keys.length; i++) { + defineReactive(obj, keys[i]); + } +}; + +/** + * Observe a list of Array items. + */ +Observer.prototype.observeArray = function observeArray (items) { + for (var i = 0, l = items.length; i < l; i++) { + observe(items[i]); + } +}; + +// helpers + +/** + * Augment an target Object or Array by intercepting + * the prototype chain using __proto__ + */ +function protoAugment (target, src, keys) { + /* eslint-disable no-proto */ + target.__proto__ = src; + /* eslint-enable no-proto */ +} + +/** + * Augment an target Object or Array by defining + * hidden properties. + */ +/* istanbul ignore next */ +function copyAugment (target, src, keys) { + for (var i = 0, l = keys.length; i < l; i++) { + var key = keys[i]; + def(target, key, src[key]); + } +} + +/** + * Attempt to create an observer instance for a value, + * returns the new observer if successfully observed, + * or the existing observer if the value already has one. + */ +function observe (value, asRootData) { + if (!isObject(value) || value instanceof VNode) { + return + } + var ob; + if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) { + ob = value.__ob__; + } else if ( + shouldObserve && + !isServerRendering() && + (Array.isArray(value) || isPlainObject(value)) && + Object.isExtensible(value) && + !value._isVue + ) { + ob = new Observer(value); + } + if (asRootData && ob) { + ob.vmCount++; + } + return ob +} + +/** + * Define a reactive property on an Object. + */ +function defineReactive ( + obj, + key, + val, + customSetter, + shallow +) { + var dep = new Dep(); + + var property = Object.getOwnPropertyDescriptor(obj, key); + if (property && property.configurable === false) { + return + } + + // cater for pre-defined getter/setters + var getter = property && property.get; + if (!getter && arguments.length === 2) { + val = obj[key]; + } + var setter = property && property.set; + + var childOb = !shallow && observe(val); + Object.defineProperty(obj, key, { + enumerable: true, + configurable: true, + get: function reactiveGetter () { + var value = getter ? getter.call(obj) : val; + if (Dep.target) { + dep.depend(); + if (childOb) { + childOb.dep.depend(); + if (Array.isArray(value)) { + dependArray(value); + } + } + } + return value + }, + set: function reactiveSetter (newVal) { + var value = getter ? getter.call(obj) : val; + /* eslint-disable no-self-compare */ + if (newVal === value || (newVal !== newVal && value !== value)) { + return + } + /* eslint-enable no-self-compare */ + if ("development" !== 'production' && customSetter) { + customSetter(); + } + if (setter) { + setter.call(obj, newVal); + } else { + val = newVal; + } + childOb = !shallow && observe(newVal); + dep.notify(); + } + }); +} + +/** + * Set a property on an object. Adds the new property and + * triggers change notification if the property doesn't + * already exist. + */ +function set (target, key, val) { + if ("development" !== 'production' && + (isUndef(target) || isPrimitive(target)) + ) { + warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target)))); + } + if (Array.isArray(target) && isValidArrayIndex(key)) { + target.length = Math.max(target.length, key); + target.splice(key, 1, val); + return val + } + if (key in target && !(key in Object.prototype)) { + target[key] = val; + return val + } + var ob = (target).__ob__; + if (target._isVue || (ob && ob.vmCount)) { + "development" !== 'production' && warn( + 'Avoid adding reactive properties to a Vue instance or its root $data ' + + 'at runtime - declare it upfront in the data option.' + ); + return val + } + if (!ob) { + target[key] = val; + return val + } + defineReactive(ob.value, key, val); + ob.dep.notify(); + return val +} + +/** + * Delete a property and trigger change if necessary. + */ +function del (target, key) { + if ("development" !== 'production' && + (isUndef(target) || isPrimitive(target)) + ) { + warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target)))); + } + if (Array.isArray(target) && isValidArrayIndex(key)) { + target.splice(key, 1); + return + } + var ob = (target).__ob__; + if (target._isVue || (ob && ob.vmCount)) { + "development" !== 'production' && warn( + 'Avoid deleting properties on a Vue instance or its root $data ' + + '- just set it to null.' + ); + return + } + if (!hasOwn(target, key)) { + return + } + delete target[key]; + if (!ob) { + return + } + ob.dep.notify(); +} + +/** + * Collect dependencies on array elements when the array is touched, since + * we cannot intercept array element access like property getters. + */ +function dependArray (value) { + for (var e = (void 0), i = 0, l = value.length; i < l; i++) { + e = value[i]; + e && e.__ob__ && e.__ob__.dep.depend(); + if (Array.isArray(e)) { + dependArray(e); + } + } +} + +/* */ + +/** + * Option overwriting strategies are functions that handle + * how to merge a parent option value and a child option + * value into the final value. + */ +var strats = config.optionMergeStrategies; + +/** + * Options with restrictions + */ +{ + strats.el = strats.propsData = function (parent, child, vm, key) { + if (!vm) { + warn( + "option \"" + key + "\" can only be used during instance " + + 'creation with the `new` keyword.' + ); + } + return defaultStrat(parent, child) + }; +} + +/** + * Helper that recursively merges two data objects together. + */ +function mergeData (to, from) { + if (!from) { return to } + var key, toVal, fromVal; + var keys = Object.keys(from); + for (var i = 0; i < keys.length; i++) { + key = keys[i]; + toVal = to[key]; + fromVal = from[key]; + if (!hasOwn(to, key)) { + set(to, key, fromVal); + } else if (isPlainObject(toVal) && isPlainObject(fromVal)) { + mergeData(toVal, fromVal); + } + } + return to +} + +/** + * Data + */ +function mergeDataOrFn ( + parentVal, + childVal, + vm +) { + if (!vm) { + // in a Vue.extend merge, both should be functions + if (!childVal) { + return parentVal + } + if (!parentVal) { + return childVal + } + // when parentVal & childVal are both present, + // we need to return a function that returns the + // merged result of both functions... no need to + // check if parentVal is a function here because + // it has to be a function to pass previous merges. + return function mergedDataFn () { + return mergeData( + typeof childVal === 'function' ? childVal.call(this, this) : childVal, + typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal + ) + } + } else { + return function mergedInstanceDataFn () { + // instance merge + var instanceData = typeof childVal === 'function' + ? childVal.call(vm, vm) + : childVal; + var defaultData = typeof parentVal === 'function' + ? parentVal.call(vm, vm) + : parentVal; + if (instanceData) { + return mergeData(instanceData, defaultData) + } else { + return defaultData + } + } + } +} + +strats.data = function ( + parentVal, + childVal, + vm +) { + if (!vm) { + if (childVal && typeof childVal !== 'function') { + "development" !== 'production' && warn( + 'The "data" option should be a function ' + + 'that returns a per-instance value in component ' + + 'definitions.', + vm + ); + + return parentVal + } + return mergeDataOrFn(parentVal, childVal) + } + + return mergeDataOrFn(parentVal, childVal, vm) +}; + +/** + * Hooks and props are merged as arrays. + */ +function mergeHook ( + parentVal, + childVal +) { + return childVal + ? parentVal + ? parentVal.concat(childVal) + : Array.isArray(childVal) + ? childVal + : [childVal] + : parentVal +} + +LIFECYCLE_HOOKS.forEach(function (hook) { + strats[hook] = mergeHook; +}); + +/** + * Assets + * + * When a vm is present (instance creation), we need to do + * a three-way merge between constructor options, instance + * options and parent options. + */ +function mergeAssets ( + parentVal, + childVal, + vm, + key +) { + var res = Object.create(parentVal || null); + if (childVal) { + "development" !== 'production' && assertObjectType(key, childVal, vm); + return extend(res, childVal) + } else { + return res + } +} + +ASSET_TYPES.forEach(function (type) { + strats[type + 's'] = mergeAssets; +}); + +/** + * Watchers. + * + * Watchers hashes should not overwrite one + * another, so we merge them as arrays. + */ +strats.watch = function ( + parentVal, + childVal, + vm, + key +) { + // work around Firefox's Object.prototype.watch... + if (parentVal === nativeWatch) { parentVal = undefined; } + if (childVal === nativeWatch) { childVal = undefined; } + /* istanbul ignore if */ + if (!childVal) { return Object.create(parentVal || null) } + { + assertObjectType(key, childVal, vm); + } + if (!parentVal) { return childVal } + var ret = {}; + extend(ret, parentVal); + for (var key$1 in childVal) { + var parent = ret[key$1]; + var child = childVal[key$1]; + if (parent && !Array.isArray(parent)) { + parent = [parent]; + } + ret[key$1] = parent + ? parent.concat(child) + : Array.isArray(child) ? child : [child]; + } + return ret +}; + +/** + * Other object hashes. + */ +strats.props = +strats.methods = +strats.inject = +strats.computed = function ( + parentVal, + childVal, + vm, + key +) { + if (childVal && "development" !== 'production') { + assertObjectType(key, childVal, vm); + } + if (!parentVal) { return childVal } + var ret = Object.create(null); + extend(ret, parentVal); + if (childVal) { extend(ret, childVal); } + return ret +}; +strats.provide = mergeDataOrFn; + +/** + * Default strategy. + */ +var defaultStrat = function (parentVal, childVal) { + return childVal === undefined + ? parentVal + : childVal +}; + +/** + * Validate component names + */ +function checkComponents (options) { + for (var key in options.components) { + validateComponentName(key); + } +} + +function validateComponentName (name) { + if (!/^[a-zA-Z][\w-]*$/.test(name)) { + warn( + 'Invalid component name: "' + name + '". Component names ' + + 'can only contain alphanumeric characters and the hyphen, ' + + 'and must start with a letter.' + ); + } + if (isBuiltInTag(name) || config.isReservedTag(name)) { + warn( + 'Do not use built-in or reserved HTML elements as component ' + + 'id: ' + name + ); + } +} + +/** + * Ensure all props option syntax are normalized into the + * Object-based format. + */ +function normalizeProps (options, vm) { + var props = options.props; + if (!props) { return } + var res = {}; + var i, val, name; + if (Array.isArray(props)) { + i = props.length; + while (i--) { + val = props[i]; + if (typeof val === 'string') { + name = camelize(val); + res[name] = { type: null }; + } else { + warn('props must be strings when using array syntax.'); + } + } + } else if (isPlainObject(props)) { + for (var key in props) { + val = props[key]; + name = camelize(key); + res[name] = isPlainObject(val) + ? val + : { type: val }; + } + } else { + warn( + "Invalid value for option \"props\": expected an Array or an Object, " + + "but got " + (toRawType(props)) + ".", + vm + ); + } + options.props = res; +} + +/** + * Normalize all injections into Object-based format + */ +function normalizeInject (options, vm) { + var inject = options.inject; + if (!inject) { return } + var normalized = options.inject = {}; + if (Array.isArray(inject)) { + for (var i = 0; i < inject.length; i++) { + normalized[inject[i]] = { from: inject[i] }; + } + } else if (isPlainObject(inject)) { + for (var key in inject) { + var val = inject[key]; + normalized[key] = isPlainObject(val) + ? extend({ from: key }, val) + : { from: val }; + } + } else { + warn( + "Invalid value for option \"inject\": expected an Array or an Object, " + + "but got " + (toRawType(inject)) + ".", + vm + ); + } +} + +/** + * Normalize raw function directives into object format. + */ +function normalizeDirectives (options) { + var dirs = options.directives; + if (dirs) { + for (var key in dirs) { + var def = dirs[key]; + if (typeof def === 'function') { + dirs[key] = { bind: def, update: def }; + } + } + } +} + +function assertObjectType (name, value, vm) { + if (!isPlainObject(value)) { + warn( + "Invalid value for option \"" + name + "\": expected an Object, " + + "but got " + (toRawType(value)) + ".", + vm + ); + } +} + +/** + * Merge two option objects into a new one. + * Core utility used in both instantiation and inheritance. + */ +function mergeOptions ( + parent, + child, + vm +) { + { + checkComponents(child); + } + + if (typeof child === 'function') { + child = child.options; + } + + normalizeProps(child, vm); + normalizeInject(child, vm); + normalizeDirectives(child); + var extendsFrom = child.extends; + if (extendsFrom) { + parent = mergeOptions(parent, extendsFrom, vm); + } + if (child.mixins) { + for (var i = 0, l = child.mixins.length; i < l; i++) { + parent = mergeOptions(parent, child.mixins[i], vm); + } + } + var options = {}; + var key; + for (key in parent) { + mergeField(key); + } + for (key in child) { + if (!hasOwn(parent, key)) { + mergeField(key); + } + } + function mergeField (key) { + var strat = strats[key] || defaultStrat; + options[key] = strat(parent[key], child[key], vm, key); + } + return options +} + +/** + * Resolve an asset. + * This function is used because child instances need access + * to assets defined in its ancestor chain. + */ +function resolveAsset ( + options, + type, + id, + warnMissing +) { + /* istanbul ignore if */ + if (typeof id !== 'string') { + return + } + var assets = options[type]; + // check local registration variations first + if (hasOwn(assets, id)) { return assets[id] } + var camelizedId = camelize(id); + if (hasOwn(assets, camelizedId)) { return assets[camelizedId] } + var PascalCaseId = capitalize(camelizedId); + if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] } + // fallback to prototype chain + var res = assets[id] || assets[camelizedId] || assets[PascalCaseId]; + if ("development" !== 'production' && warnMissing && !res) { + warn( + 'Failed to resolve ' + type.slice(0, -1) + ': ' + id, + options + ); + } + return res +} + +/* */ + +function validateProp ( + key, + propOptions, + propsData, + vm +) { + var prop = propOptions[key]; + var absent = !hasOwn(propsData, key); + var value = propsData[key]; + // boolean casting + var booleanIndex = getTypeIndex(Boolean, prop.type); + if (booleanIndex > -1) { + if (absent && !hasOwn(prop, 'default')) { + value = false; + } else if (value === '' || value === hyphenate(key)) { + // only cast empty string / same name to boolean if + // boolean has higher priority + var stringIndex = getTypeIndex(String, prop.type); + if (stringIndex < 0 || booleanIndex < stringIndex) { + value = true; + } + } + } + // check default value + if (value === undefined) { + value = getPropDefaultValue(vm, prop, key); + // since the default value is a fresh copy, + // make sure to observe it. + var prevShouldObserve = shouldObserve; + toggleObserving(true); + observe(value); + toggleObserving(prevShouldObserve); + } + { + assertProp(prop, key, value, vm, absent); + } + return value +} + +/** + * Get the default value of a prop. + */ +function getPropDefaultValue (vm, prop, key) { + // no default, return undefined + if (!hasOwn(prop, 'default')) { + return undefined + } + var def = prop.default; + // warn against non-factory defaults for Object & Array + if ("development" !== 'production' && isObject(def)) { + warn( + 'Invalid default value for prop "' + key + '": ' + + 'Props with type Object/Array must use a factory function ' + + 'to return the default value.', + vm + ); + } + // the raw prop value was also undefined from previous render, + // return previous default value to avoid unnecessary watcher trigger + if (vm && vm.$options.propsData && + vm.$options.propsData[key] === undefined && + vm._props[key] !== undefined + ) { + return vm._props[key] + } + // call factory function for non-Function types + // a value is Function if its prototype is function even across different execution context + return typeof def === 'function' && getType(prop.type) !== 'Function' + ? def.call(vm) + : def +} + +/** + * Assert whether a prop is valid. + */ +function assertProp ( + prop, + name, + value, + vm, + absent +) { + if (prop.required && absent) { + warn( + 'Missing required prop: "' + name + '"', + vm + ); + return + } + if (value == null && !prop.required) { + return + } + var type = prop.type; + var valid = !type || type === true; + var expectedTypes = []; + if (type) { + if (!Array.isArray(type)) { + type = [type]; + } + for (var i = 0; i < type.length && !valid; i++) { + var assertedType = assertType(value, type[i]); + expectedTypes.push(assertedType.expectedType || ''); + valid = assertedType.valid; + } + } + if (!valid) { + warn( + "Invalid prop: type check failed for prop \"" + name + "\"." + + " Expected " + (expectedTypes.map(capitalize).join(', ')) + + ", got " + (toRawType(value)) + ".", + vm + ); + return + } + var validator = prop.validator; + if (validator) { + if (!validator(value)) { + warn( + 'Invalid prop: custom validator check failed for prop "' + name + '".', + vm + ); + } + } +} + +var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/; + +function assertType (value, type) { + var valid; + var expectedType = getType(type); + if (simpleCheckRE.test(expectedType)) { + var t = typeof value; + valid = t === expectedType.toLowerCase(); + // for primitive wrapper objects + if (!valid && t === 'object') { + valid = value instanceof type; + } + } else if (expectedType === 'Object') { + valid = isPlainObject(value); + } else if (expectedType === 'Array') { + valid = Array.isArray(value); + } else { + valid = value instanceof type; + } + return { + valid: valid, + expectedType: expectedType + } +} + +/** + * Use function string name to check built-in types, + * because a simple equality check will fail when running + * across different vms / iframes. + */ +function getType (fn) { + var match = fn && fn.toString().match(/^\s*function (\w+)/); + return match ? match[1] : '' +} + +function isSameType (a, b) { + return getType(a) === getType(b) +} + +function getTypeIndex (type, expectedTypes) { + if (!Array.isArray(expectedTypes)) { + return isSameType(expectedTypes, type) ? 0 : -1 + } + for (var i = 0, len = expectedTypes.length; i < len; i++) { + if (isSameType(expectedTypes[i], type)) { + return i + } + } + return -1 +} + +/* */ + +function handleError (err, vm, info) { + if (vm) { + var cur = vm; + while ((cur = cur.$parent)) { + var hooks = cur.$options.errorCaptured; + if (hooks) { + for (var i = 0; i < hooks.length; i++) { + try { + var capture = hooks[i].call(cur, err, vm, info) === false; + if (capture) { return } + } catch (e) { + globalHandleError(e, cur, 'errorCaptured hook'); + } + } + } + } + } + globalHandleError(err, vm, info); +} + +function globalHandleError (err, vm, info) { + if (config.errorHandler) { + try { + return config.errorHandler.call(null, err, vm, info) + } catch (e) { + logError(e, null, 'config.errorHandler'); + } + } + logError(err, vm, info); +} + +function logError (err, vm, info) { + { + warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm); + } + /* istanbul ignore else */ + if ((inBrowser || inWeex) && typeof console !== 'undefined') { + console.error(err); + } else { + throw err + } +} + +/* */ +/* globals MessageChannel */ + +var callbacks = []; +var pending = false; + +function flushCallbacks () { + pending = false; + var copies = callbacks.slice(0); + callbacks.length = 0; + for (var i = 0; i < copies.length; i++) { + copies[i](); + } +} + +// Here we have async deferring wrappers using both microtasks and (macro) tasks. +// In < 2.4 we used microtasks everywhere, but there are some scenarios where +// microtasks have too high a priority and fire in between supposedly +// sequential events (e.g. #4521, #6690) or even between bubbling of the same +// event (#6566). However, using (macro) tasks everywhere also has subtle problems +// when state is changed right before repaint (e.g. #6813, out-in transitions). +// Here we use microtask by default, but expose a way to force (macro) task when +// needed (e.g. in event handlers attached by v-on). +var microTimerFunc; +var macroTimerFunc; +var useMacroTask = false; + +// Determine (macro) task defer implementation. +// Technically setImmediate should be the ideal choice, but it's only available +// in IE. The only polyfill that consistently queues the callback after all DOM +// events triggered in the same loop is by using MessageChannel. +/* istanbul ignore if */ +if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) { + macroTimerFunc = function () { + setImmediate(flushCallbacks); + }; +} else if (typeof MessageChannel !== 'undefined' && ( + isNative(MessageChannel) || + // PhantomJS + MessageChannel.toString() === '[object MessageChannelConstructor]' +)) { + var channel = new MessageChannel(); + var port = channel.port2; + channel.port1.onmessage = flushCallbacks; + macroTimerFunc = function () { + port.postMessage(1); + }; +} else { + /* istanbul ignore next */ + macroTimerFunc = function () { + setTimeout(flushCallbacks, 0); + }; +} + +// Determine microtask defer implementation. +/* istanbul ignore next, $flow-disable-line */ +if (typeof Promise !== 'undefined' && isNative(Promise)) { + var p = Promise.resolve(); + microTimerFunc = function () { + p.then(flushCallbacks); + // in problematic UIWebViews, Promise.then doesn't completely break, but + // it can get stuck in a weird state where callbacks are pushed into the + // microtask queue but the queue isn't being flushed, until the browser + // needs to do some other work, e.g. handle a timer. Therefore we can + // "force" the microtask queue to be flushed by adding an empty timer. + if (isIOS) { setTimeout(noop); } + }; +} else { + // fallback to macro + microTimerFunc = macroTimerFunc; +} + +/** + * Wrap a function so that if any code inside triggers state change, + * the changes are queued using a (macro) task instead of a microtask. + */ +function withMacroTask (fn) { + return fn._withTask || (fn._withTask = function () { + useMacroTask = true; + var res = fn.apply(null, arguments); + useMacroTask = false; + return res + }) +} + +function nextTick (cb, ctx) { + var _resolve; + callbacks.push(function () { + if (cb) { + try { + cb.call(ctx); + } catch (e) { + handleError(e, ctx, 'nextTick'); + } + } else if (_resolve) { + _resolve(ctx); + } + }); + if (!pending) { + pending = true; + if (useMacroTask) { + macroTimerFunc(); + } else { + microTimerFunc(); + } + } + // $flow-disable-line + if (!cb && typeof Promise !== 'undefined') { + return new Promise(function (resolve) { + _resolve = resolve; + }) + } +} + +/* */ + +var mark; +var measure; + +{ + var perf = inBrowser && window.performance; + /* istanbul ignore if */ + if ( + perf && + perf.mark && + perf.measure && + perf.clearMarks && + perf.clearMeasures + ) { + mark = function (tag) { return perf.mark(tag); }; + measure = function (name, startTag, endTag) { + perf.measure(name, startTag, endTag); + perf.clearMarks(startTag); + perf.clearMarks(endTag); + perf.clearMeasures(name); + }; + } +} + +/* not type checking this file because flow doesn't play well with Proxy */ + +var initProxy; + +{ + var allowedGlobals = makeMap( + 'Infinity,undefined,NaN,isFinite,isNaN,' + + 'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' + + 'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' + + 'require' // for Webpack/Browserify + ); + + var warnNonPresent = function (target, key) { + warn( + "Property or method \"" + key + "\" is not defined on the instance but " + + 'referenced during render. Make sure that this property is reactive, ' + + 'either in the data option, or for class-based components, by ' + + 'initializing the property. ' + + 'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.', + target + ); + }; + + var hasProxy = + typeof Proxy !== 'undefined' && isNative(Proxy); + + if (hasProxy) { + var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact'); + config.keyCodes = new Proxy(config.keyCodes, { + set: function set (target, key, value) { + if (isBuiltInModifier(key)) { + warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key)); + return false + } else { + target[key] = value; + return true + } + } + }); + } + + var hasHandler = { + has: function has (target, key) { + var has = key in target; + var isAllowed = allowedGlobals(key) || key.charAt(0) === '_'; + if (!has && !isAllowed) { + warnNonPresent(target, key); + } + return has || !isAllowed + } + }; + + var getHandler = { + get: function get (target, key) { + if (typeof key === 'string' && !(key in target)) { + warnNonPresent(target, key); + } + return target[key] + } + }; + + initProxy = function initProxy (vm) { + if (hasProxy) { + // determine which proxy handler to use + var options = vm.$options; + var handlers = options.render && options.render._withStripped + ? getHandler + : hasHandler; + vm._renderProxy = new Proxy(vm, handlers); + } else { + vm._renderProxy = vm; + } + }; +} + +/* */ + +var seenObjects = new _Set(); + +/** + * Recursively traverse an object to evoke all converted + * getters, so that every nested property inside the object + * is collected as a "deep" dependency. + */ +function traverse (val) { + _traverse(val, seenObjects); + seenObjects.clear(); +} + +function _traverse (val, seen) { + var i, keys; + var isA = Array.isArray(val); + if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) { + return + } + if (val.__ob__) { + var depId = val.__ob__.dep.id; + if (seen.has(depId)) { + return + } + seen.add(depId); + } + if (isA) { + i = val.length; + while (i--) { _traverse(val[i], seen); } + } else { + keys = Object.keys(val); + i = keys.length; + while (i--) { _traverse(val[keys[i]], seen); } + } +} + +/* */ + +var normalizeEvent = cached(function (name) { + var passive = name.charAt(0) === '&'; + name = passive ? name.slice(1) : name; + var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first + name = once$$1 ? name.slice(1) : name; + var capture = name.charAt(0) === '!'; + name = capture ? name.slice(1) : name; + return { + name: name, + once: once$$1, + capture: capture, + passive: passive + } +}); + +function createFnInvoker (fns) { + function invoker () { + var arguments$1 = arguments; + + var fns = invoker.fns; + if (Array.isArray(fns)) { + var cloned = fns.slice(); + for (var i = 0; i < cloned.length; i++) { + cloned[i].apply(null, arguments$1); + } + } else { + // return handler return value for single handlers + return fns.apply(null, arguments) + } + } + invoker.fns = fns; + return invoker +} + +function updateListeners ( + on, + oldOn, + add, + remove$$1, + vm +) { + var name, def, cur, old, event; + for (name in on) { + def = cur = on[name]; + old = oldOn[name]; + event = normalizeEvent(name); + /* istanbul ignore if */ + if (isUndef(cur)) { + "development" !== 'production' && warn( + "Invalid handler for event \"" + (event.name) + "\": got " + String(cur), + vm + ); + } else if (isUndef(old)) { + if (isUndef(cur.fns)) { + cur = on[name] = createFnInvoker(cur); + } + add(event.name, cur, event.once, event.capture, event.passive, event.params); + } else if (cur !== old) { + old.fns = cur; + on[name] = old; + } + } + for (name in oldOn) { + if (isUndef(on[name])) { + event = normalizeEvent(name); + remove$$1(event.name, oldOn[name], event.capture); + } + } +} + +/* */ + +function mergeVNodeHook (def, hookKey, hook) { + if (def instanceof VNode) { + def = def.data.hook || (def.data.hook = {}); + } + var invoker; + var oldHook = def[hookKey]; + + function wrappedHook () { + hook.apply(this, arguments); + // important: remove merged hook to ensure it's called only once + // and prevent memory leak + remove(invoker.fns, wrappedHook); + } + + if (isUndef(oldHook)) { + // no existing hook + invoker = createFnInvoker([wrappedHook]); + } else { + /* istanbul ignore if */ + if (isDef(oldHook.fns) && isTrue(oldHook.merged)) { + // already a merged invoker + invoker = oldHook; + invoker.fns.push(wrappedHook); + } else { + // existing plain hook + invoker = createFnInvoker([oldHook, wrappedHook]); + } + } + + invoker.merged = true; + def[hookKey] = invoker; +} + +/* */ + +function extractPropsFromVNodeData ( + data, + Ctor, + tag +) { + // we are only extracting raw values here. + // validation and default values are handled in the child + // component itself. + var propOptions = Ctor.options.props; + if (isUndef(propOptions)) { + return + } + var res = {}; + var attrs = data.attrs; + var props = data.props; + if (isDef(attrs) || isDef(props)) { + for (var key in propOptions) { + var altKey = hyphenate(key); + { + var keyInLowerCase = key.toLowerCase(); + if ( + key !== keyInLowerCase && + attrs && hasOwn(attrs, keyInLowerCase) + ) { + tip( + "Prop \"" + keyInLowerCase + "\" is passed to component " + + (formatComponentName(tag || Ctor)) + ", but the declared prop name is" + + " \"" + key + "\". " + + "Note that HTML attributes are case-insensitive and camelCased " + + "props need to use their kebab-case equivalents when using in-DOM " + + "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"." + ); + } + } + checkProp(res, props, key, altKey, true) || + checkProp(res, attrs, key, altKey, false); + } + } + return res +} + +function checkProp ( + res, + hash, + key, + altKey, + preserve +) { + if (isDef(hash)) { + if (hasOwn(hash, key)) { + res[key] = hash[key]; + if (!preserve) { + delete hash[key]; + } + return true + } else if (hasOwn(hash, altKey)) { + res[key] = hash[altKey]; + if (!preserve) { + delete hash[altKey]; + } + return true + } + } + return false +} + +/* */ + +// The template compiler attempts to minimize the need for normalization by +// statically analyzing the template at compile time. +// +// For plain HTML markup, normalization can be completely skipped because the +// generated render function is guaranteed to return Array<VNode>. There are +// two cases where extra normalization is needed: + +// 1. When the children contains components - because a functional component +// may return an Array instead of a single root. In this case, just a simple +// normalization is needed - if any child is an Array, we flatten the whole +// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep +// because functional components already normalize their own children. +function simpleNormalizeChildren (children) { + for (var i = 0; i < children.length; i++) { + if (Array.isArray(children[i])) { + return Array.prototype.concat.apply([], children) + } + } + return children +} + +// 2. When the children contains constructs that always generated nested Arrays, +// e.g. <template>, <slot>, v-for, or when the children is provided by user +// with hand-written render functions / JSX. In such cases a full normalization +// is needed to cater to all possible types of children values. +function normalizeChildren (children) { + return isPrimitive(children) + ? [createTextVNode(children)] + : Array.isArray(children) + ? normalizeArrayChildren(children) + : undefined +} + +function isTextNode (node) { + return isDef(node) && isDef(node.text) && isFalse(node.isComment) +} + +function normalizeArrayChildren (children, nestedIndex) { + var res = []; + var i, c, lastIndex, last; + for (i = 0; i < children.length; i++) { + c = children[i]; + if (isUndef(c) || typeof c === 'boolean') { continue } + lastIndex = res.length - 1; + last = res[lastIndex]; + // nested + if (Array.isArray(c)) { + if (c.length > 0) { + c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)); + // merge adjacent text nodes + if (isTextNode(c[0]) && isTextNode(last)) { + res[lastIndex] = createTextVNode(last.text + (c[0]).text); + c.shift(); + } + res.push.apply(res, c); + } + } else if (isPrimitive(c)) { + if (isTextNode(last)) { + // merge adjacent text nodes + // this is necessary for SSR hydration because text nodes are + // essentially merged when rendered to HTML strings + res[lastIndex] = createTextVNode(last.text + c); + } else if (c !== '') { + // convert primitive to vnode + res.push(createTextVNode(c)); + } + } else { + if (isTextNode(c) && isTextNode(last)) { + // merge adjacent text nodes + res[lastIndex] = createTextVNode(last.text + c.text); + } else { + // default key for nested array children (likely generated by v-for) + if (isTrue(children._isVList) && + isDef(c.tag) && + isUndef(c.key) && + isDef(nestedIndex)) { + c.key = "__vlist" + nestedIndex + "_" + i + "__"; + } + res.push(c); + } + } + } + return res +} + +/* */ + +function ensureCtor (comp, base) { + if ( + comp.__esModule || + (hasSymbol && comp[Symbol.toStringTag] === 'Module') + ) { + comp = comp.default; + } + return isObject(comp) + ? base.extend(comp) + : comp +} + +function createAsyncPlaceholder ( + factory, + data, + context, + children, + tag +) { + var node = createEmptyVNode(); + node.asyncFactory = factory; + node.asyncMeta = { data: data, context: context, children: children, tag: tag }; + return node +} + +function resolveAsyncComponent ( + factory, + baseCtor, + context +) { + if (isTrue(factory.error) && isDef(factory.errorComp)) { + return factory.errorComp + } + + if (isDef(factory.resolved)) { + return factory.resolved + } + + if (isTrue(factory.loading) && isDef(factory.loadingComp)) { + return factory.loadingComp + } + + if (isDef(factory.contexts)) { + // already pending + factory.contexts.push(context); + } else { + var contexts = factory.contexts = [context]; + var sync = true; + + var forceRender = function () { + for (var i = 0, l = contexts.length; i < l; i++) { + contexts[i].$forceUpdate(); + } + }; + + var resolve = once(function (res) { + // cache resolved + factory.resolved = ensureCtor(res, baseCtor); + // invoke callbacks only if this is not a synchronous resolve + // (async resolves are shimmed as synchronous during SSR) + if (!sync) { + forceRender(); + } + }); + + var reject = once(function (reason) { + "development" !== 'production' && warn( + "Failed to resolve async component: " + (String(factory)) + + (reason ? ("\nReason: " + reason) : '') + ); + if (isDef(factory.errorComp)) { + factory.error = true; + forceRender(); + } + }); + + var res = factory(resolve, reject); + + if (isObject(res)) { + if (typeof res.then === 'function') { + // () => Promise + if (isUndef(factory.resolved)) { + res.then(resolve, reject); + } + } else if (isDef(res.component) && typeof res.component.then === 'function') { + res.component.then(resolve, reject); + + if (isDef(res.error)) { + factory.errorComp = ensureCtor(res.error, baseCtor); + } + + if (isDef(res.loading)) { + factory.loadingComp = ensureCtor(res.loading, baseCtor); + if (res.delay === 0) { + factory.loading = true; + } else { + setTimeout(function () { + if (isUndef(factory.resolved) && isUndef(factory.error)) { + factory.loading = true; + forceRender(); + } + }, res.delay || 200); + } + } + + if (isDef(res.timeout)) { + setTimeout(function () { + if (isUndef(factory.resolved)) { + reject( + "timeout (" + (res.timeout) + "ms)" + ); + } + }, res.timeout); + } + } + } + + sync = false; + // return in case resolved synchronously + return factory.loading + ? factory.loadingComp + : factory.resolved + } +} + +/* */ + +function isAsyncPlaceholder (node) { + return node.isComment && node.asyncFactory +} + +/* */ + +function getFirstComponentChild (children) { + if (Array.isArray(children)) { + for (var i = 0; i < children.length; i++) { + var c = children[i]; + if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) { + return c + } + } + } +} + +/* */ + +/* */ + +function initEvents (vm) { + vm._events = Object.create(null); + vm._hasHookEvent = false; + // init parent attached events + var listeners = vm.$options._parentListeners; + if (listeners) { + updateComponentListeners(vm, listeners); + } +} + +var target; + +function add (event, fn, once) { + if (once) { + target.$once(event, fn); + } else { + target.$on(event, fn); + } +} + +function remove$1 (event, fn) { + target.$off(event, fn); +} + +function updateComponentListeners ( + vm, + listeners, + oldListeners +) { + target = vm; + updateListeners(listeners, oldListeners || {}, add, remove$1, vm); + target = undefined; +} + +function eventsMixin (Vue) { + var hookRE = /^hook:/; + Vue.prototype.$on = function (event, fn) { + var this$1 = this; + + var vm = this; + if (Array.isArray(event)) { + for (var i = 0, l = event.length; i < l; i++) { + this$1.$on(event[i], fn); + } + } else { + (vm._events[event] || (vm._events[event] = [])).push(fn); + // optimize hook:event cost by using a boolean flag marked at registration + // instead of a hash lookup + if (hookRE.test(event)) { + vm._hasHookEvent = true; + } + } + return vm + }; + + Vue.prototype.$once = function (event, fn) { + var vm = this; + function on () { + vm.$off(event, on); + fn.apply(vm, arguments); + } + on.fn = fn; + vm.$on(event, on); + return vm + }; + + Vue.prototype.$off = function (event, fn) { + var this$1 = this; + + var vm = this; + // all + if (!arguments.length) { + vm._events = Object.create(null); + return vm + } + // array of events + if (Array.isArray(event)) { + for (var i = 0, l = event.length; i < l; i++) { + this$1.$off(event[i], fn); + } + return vm + } + // specific event + var cbs = vm._events[event]; + if (!cbs) { + return vm + } + if (!fn) { + vm._events[event] = null; + return vm + } + if (fn) { + // specific handler + var cb; + var i$1 = cbs.length; + while (i$1--) { + cb = cbs[i$1]; + if (cb === fn || cb.fn === fn) { + cbs.splice(i$1, 1); + break + } + } + } + return vm + }; + + Vue.prototype.$emit = function (event) { + var vm = this; + { + var lowerCaseEvent = event.toLowerCase(); + if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) { + tip( + "Event \"" + lowerCaseEvent + "\" is emitted in component " + + (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " + + "Note that HTML attributes are case-insensitive and you cannot use " + + "v-on to listen to camelCase events when using in-DOM templates. " + + "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"." + ); + } + } + var cbs = vm._events[event]; + if (cbs) { + cbs = cbs.length > 1 ? toArray(cbs) : cbs; + var args = toArray(arguments, 1); + for (var i = 0, l = cbs.length; i < l; i++) { + try { + cbs[i].apply(vm, args); + } catch (e) { + handleError(e, vm, ("event handler for \"" + event + "\"")); + } + } + } + return vm + }; +} + +/* */ + + + +/** + * Runtime helper for resolving raw children VNodes into a slot object. + */ +function resolveSlots ( + children, + context +) { + var slots = {}; + if (!children) { + return slots + } + for (var i = 0, l = children.length; i < l; i++) { + var child = children[i]; + var data = child.data; + // remove slot attribute if the node is resolved as a Vue slot node + if (data && data.attrs && data.attrs.slot) { + delete data.attrs.slot; + } + // named slots should only be respected if the vnode was rendered in the + // same context. + if ((child.context === context || child.fnContext === context) && + data && data.slot != null + ) { + var name = data.slot; + var slot = (slots[name] || (slots[name] = [])); + if (child.tag === 'template') { + slot.push.apply(slot, child.children || []); + } else { + slot.push(child); + } + } else { + (slots.default || (slots.default = [])).push(child); + } + } + // ignore slots that contains only whitespace + for (var name$1 in slots) { + if (slots[name$1].every(isWhitespace)) { + delete slots[name$1]; + } + } + return slots +} + +function isWhitespace (node) { + return (node.isComment && !node.asyncFactory) || node.text === ' ' +} + +function resolveScopedSlots ( + fns, // see flow/vnode + res +) { + res = res || {}; + for (var i = 0; i < fns.length; i++) { + if (Array.isArray(fns[i])) { + resolveScopedSlots(fns[i], res); + } else { + res[fns[i].key] = fns[i].fn; + } + } + return res +} + +/* */ + +var activeInstance = null; +var isUpdatingChildComponent = false; + +function initLifecycle (vm) { + var options = vm.$options; + + // locate first non-abstract parent + var parent = options.parent; + if (parent && !options.abstract) { + while (parent.$options.abstract && parent.$parent) { + parent = parent.$parent; + } + parent.$children.push(vm); + } + + vm.$parent = parent; + vm.$root = parent ? parent.$root : vm; + + vm.$children = []; + vm.$refs = {}; + + vm._watcher = null; + vm._inactive = null; + vm._directInactive = false; + vm._isMounted = false; + vm._isDestroyed = false; + vm._isBeingDestroyed = false; +} + +function lifecycleMixin (Vue) { + Vue.prototype._update = function (vnode, hydrating) { + var vm = this; + if (vm._isMounted) { + callHook(vm, 'beforeUpdate'); + } + var prevEl = vm.$el; + var prevVnode = vm._vnode; + var prevActiveInstance = activeInstance; + activeInstance = vm; + vm._vnode = vnode; + // Vue.prototype.__patch__ is injected in entry points + // based on the rendering backend used. + if (!prevVnode) { + // initial render + vm.$el = vm.__patch__( + vm.$el, vnode, hydrating, false /* removeOnly */, + vm.$options._parentElm, + vm.$options._refElm + ); + // no need for the ref nodes after initial patch + // this prevents keeping a detached DOM tree in memory (#5851) + vm.$options._parentElm = vm.$options._refElm = null; + } else { + // updates + vm.$el = vm.__patch__(prevVnode, vnode); + } + activeInstance = prevActiveInstance; + // update __vue__ reference + if (prevEl) { + prevEl.__vue__ = null; + } + if (vm.$el) { + vm.$el.__vue__ = vm; + } + // if parent is an HOC, update its $el as well + if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) { + vm.$parent.$el = vm.$el; + } + // updated hook is called by the scheduler to ensure that children are + // updated in a parent's updated hook. + }; + + Vue.prototype.$forceUpdate = function () { + var vm = this; + if (vm._watcher) { + vm._watcher.update(); + } + }; + + Vue.prototype.$destroy = function () { + var vm = this; + if (vm._isBeingDestroyed) { + return + } + callHook(vm, 'beforeDestroy'); + vm._isBeingDestroyed = true; + // remove self from parent + var parent = vm.$parent; + if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) { + remove(parent.$children, vm); + } + // teardown watchers + if (vm._watcher) { + vm._watcher.teardown(); + } + var i = vm._watchers.length; + while (i--) { + vm._watchers[i].teardown(); + } + // remove reference from data ob + // frozen object may not have observer. + if (vm._data.__ob__) { + vm._data.__ob__.vmCount--; + } + // call the last hook... + vm._isDestroyed = true; + // invoke destroy hooks on current rendered tree + vm.__patch__(vm._vnode, null); + // fire destroyed hook + callHook(vm, 'destroyed'); + // turn off all instance listeners. + vm.$off(); + // remove __vue__ reference + if (vm.$el) { + vm.$el.__vue__ = null; + } + // release circular reference (#6759) + if (vm.$vnode) { + vm.$vnode.parent = null; + } + }; +} + +function mountComponent ( + vm, + el, + hydrating +) { + vm.$el = el; + if (!vm.$options.render) { + vm.$options.render = createEmptyVNode; + { + /* istanbul ignore if */ + if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') || + vm.$options.el || el) { + warn( + 'You are using the runtime-only build of Vue where the template ' + + 'compiler is not available. Either pre-compile the templates into ' + + 'render functions, or use the compiler-included build.', + vm + ); + } else { + warn( + 'Failed to mount component: template or render function not defined.', + vm + ); + } + } + } + callHook(vm, 'beforeMount'); + + var updateComponent; + /* istanbul ignore if */ + if ("development" !== 'production' && config.performance && mark) { + updateComponent = function () { + var name = vm._name; + var id = vm._uid; + var startTag = "vue-perf-start:" + id; + var endTag = "vue-perf-end:" + id; + + mark(startTag); + var vnode = vm._render(); + mark(endTag); + measure(("vue " + name + " render"), startTag, endTag); + + mark(startTag); + vm._update(vnode, hydrating); + mark(endTag); + measure(("vue " + name + " patch"), startTag, endTag); + }; + } else { + updateComponent = function () { + vm._update(vm._render(), hydrating); + }; + } + + // we set this to vm._watcher inside the watcher's constructor + // since the watcher's initial patch may call $forceUpdate (e.g. inside child + // component's mounted hook), which relies on vm._watcher being already defined + new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */); + hydrating = false; + + // manually mounted instance, call mounted on self + // mounted is called for render-created child components in its inserted hook + if (vm.$vnode == null) { + vm._isMounted = true; + callHook(vm, 'mounted'); + } + return vm +} + +function updateChildComponent ( + vm, + propsData, + listeners, + parentVnode, + renderChildren +) { + { + isUpdatingChildComponent = true; + } + + // determine whether component has slot children + // we need to do this before overwriting $options._renderChildren + var hasChildren = !!( + renderChildren || // has new static slots + vm.$options._renderChildren || // has old static slots + parentVnode.data.scopedSlots || // has new scoped slots + vm.$scopedSlots !== emptyObject // has old scoped slots + ); + + vm.$options._parentVnode = parentVnode; + vm.$vnode = parentVnode; // update vm's placeholder node without re-render + + if (vm._vnode) { // update child tree's parent + vm._vnode.parent = parentVnode; + } + vm.$options._renderChildren = renderChildren; + + // update $attrs and $listeners hash + // these are also reactive so they may trigger child update if the child + // used them during render + vm.$attrs = parentVnode.data.attrs || emptyObject; + vm.$listeners = listeners || emptyObject; + + // update props + if (propsData && vm.$options.props) { + toggleObserving(false); + var props = vm._props; + var propKeys = vm.$options._propKeys || []; + for (var i = 0; i < propKeys.length; i++) { + var key = propKeys[i]; + var propOptions = vm.$options.props; // wtf flow? + props[key] = validateProp(key, propOptions, propsData, vm); + } + toggleObserving(true); + // keep a copy of raw propsData + vm.$options.propsData = propsData; + } + + // update listeners + listeners = listeners || emptyObject; + var oldListeners = vm.$options._parentListeners; + vm.$options._parentListeners = listeners; + updateComponentListeners(vm, listeners, oldListeners); + + // resolve slots + force update if has children + if (hasChildren) { + vm.$slots = resolveSlots(renderChildren, parentVnode.context); + vm.$forceUpdate(); + } + + { + isUpdatingChildComponent = false; + } +} + +function isInInactiveTree (vm) { + while (vm && (vm = vm.$parent)) { + if (vm._inactive) { return true } + } + return false +} + +function activateChildComponent (vm, direct) { + if (direct) { + vm._directInactive = false; + if (isInInactiveTree(vm)) { + return + } + } else if (vm._directInactive) { + return + } + if (vm._inactive || vm._inactive === null) { + vm._inactive = false; + for (var i = 0; i < vm.$children.length; i++) { + activateChildComponent(vm.$children[i]); + } + callHook(vm, 'activated'); + } +} + +function deactivateChildComponent (vm, direct) { + if (direct) { + vm._directInactive = true; + if (isInInactiveTree(vm)) { + return + } + } + if (!vm._inactive) { + vm._inactive = true; + for (var i = 0; i < vm.$children.length; i++) { + deactivateChildComponent(vm.$children[i]); + } + callHook(vm, 'deactivated'); + } +} + +function callHook (vm, hook) { + // #7573 disable dep collection when invoking lifecycle hooks + pushTarget(); + var handlers = vm.$options[hook]; + if (handlers) { + for (var i = 0, j = handlers.length; i < j; i++) { + try { + handlers[i].call(vm); + } catch (e) { + handleError(e, vm, (hook + " hook")); + } + } + } + if (vm._hasHookEvent) { + vm.$emit('hook:' + hook); + } + popTarget(); +} + +/* */ + + +var MAX_UPDATE_COUNT = 100; + +var queue = []; +var activatedChildren = []; +var has = {}; +var circular = {}; +var waiting = false; +var flushing = false; +var index = 0; + +/** + * Reset the scheduler's state. + */ +function resetSchedulerState () { + index = queue.length = activatedChildren.length = 0; + has = {}; + { + circular = {}; + } + waiting = flushing = false; +} + +/** + * Flush both queues and run the watchers. + */ +function flushSchedulerQueue () { + flushing = true; + var watcher, id; + + // Sort queue before flush. + // This ensures that: + // 1. Components are updated from parent to child. (because parent is always + // created before the child) + // 2. A component's user watchers are run before its render watcher (because + // user watchers are created before the render watcher) + // 3. If a component is destroyed during a parent component's watcher run, + // its watchers can be skipped. + queue.sort(function (a, b) { return a.id - b.id; }); + + // do not cache length because more watchers might be pushed + // as we run existing watchers + for (index = 0; index < queue.length; index++) { + watcher = queue[index]; + id = watcher.id; + has[id] = null; + watcher.run(); + // in dev build, check and stop circular updates. + if ("development" !== 'production' && has[id] != null) { + circular[id] = (circular[id] || 0) + 1; + if (circular[id] > MAX_UPDATE_COUNT) { + warn( + 'You may have an infinite update loop ' + ( + watcher.user + ? ("in watcher with expression \"" + (watcher.expression) + "\"") + : "in a component render function." + ), + watcher.vm + ); + break + } + } + } + + // keep copies of post queues before resetting state + var activatedQueue = activatedChildren.slice(); + var updatedQueue = queue.slice(); + + resetSchedulerState(); + + // call component updated and activated hooks + callActivatedHooks(activatedQueue); + callUpdatedHooks(updatedQueue); + + // devtool hook + /* istanbul ignore if */ + if (devtools && config.devtools) { + devtools.emit('flush'); + } +} + +function callUpdatedHooks (queue) { + var i = queue.length; + while (i--) { + var watcher = queue[i]; + var vm = watcher.vm; + if (vm._watcher === watcher && vm._isMounted) { + callHook(vm, 'updated'); + } + } +} + +/** + * Queue a kept-alive component that was activated during patch. + * The queue will be processed after the entire tree has been patched. + */ +function queueActivatedComponent (vm) { + // setting _inactive to false here so that a render function can + // rely on checking whether it's in an inactive tree (e.g. router-view) + vm._inactive = false; + activatedChildren.push(vm); +} + +function callActivatedHooks (queue) { + for (var i = 0; i < queue.length; i++) { + queue[i]._inactive = true; + activateChildComponent(queue[i], true /* true */); + } +} + +/** + * Push a watcher into the watcher queue. + * Jobs with duplicate IDs will be skipped unless it's + * pushed when the queue is being flushed. + */ +function queueWatcher (watcher) { + var id = watcher.id; + if (has[id] == null) { + has[id] = true; + if (!flushing) { + queue.push(watcher); + } else { + // if already flushing, splice the watcher based on its id + // if already past its id, it will be run next immediately. + var i = queue.length - 1; + while (i > index && queue[i].id > watcher.id) { + i--; + } + queue.splice(i + 1, 0, watcher); + } + // queue the flush + if (!waiting) { + waiting = true; + nextTick(flushSchedulerQueue); + } + } +} + +/* */ + +var uid$1 = 0; + +/** + * A watcher parses an expression, collects dependencies, + * and fires callback when the expression value changes. + * This is used for both the $watch() api and directives. + */ +var Watcher = function Watcher ( + vm, + expOrFn, + cb, + options, + isRenderWatcher +) { + this.vm = vm; + if (isRenderWatcher) { + vm._watcher = this; + } + vm._watchers.push(this); + // options + if (options) { + this.deep = !!options.deep; + this.user = !!options.user; + this.lazy = !!options.lazy; + this.sync = !!options.sync; + } else { + this.deep = this.user = this.lazy = this.sync = false; + } + this.cb = cb; + this.id = ++uid$1; // uid for batching + this.active = true; + this.dirty = this.lazy; // for lazy watchers + this.deps = []; + this.newDeps = []; + this.depIds = new _Set(); + this.newDepIds = new _Set(); + this.expression = expOrFn.toString(); + // parse expression for getter + if (typeof expOrFn === 'function') { + this.getter = expOrFn; + } else { + this.getter = parsePath(expOrFn); + if (!this.getter) { + this.getter = function () {}; + "development" !== 'production' && warn( + "Failed watching path: \"" + expOrFn + "\" " + + 'Watcher only accepts simple dot-delimited paths. ' + + 'For full control, use a function instead.', + vm + ); + } + } + this.value = this.lazy + ? undefined + : this.get(); +}; + +/** + * Evaluate the getter, and re-collect dependencies. + */ +Watcher.prototype.get = function get () { + pushTarget(this); + var value; + var vm = this.vm; + try { + value = this.getter.call(vm, vm); + } catch (e) { + if (this.user) { + handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\"")); + } else { + throw e + } + } finally { + // "touch" every property so they are all tracked as + // dependencies for deep watching + if (this.deep) { + traverse(value); + } + popTarget(); + this.cleanupDeps(); + } + return value +}; + +/** + * Add a dependency to this directive. + */ +Watcher.prototype.addDep = function addDep (dep) { + var id = dep.id; + if (!this.newDepIds.has(id)) { + this.newDepIds.add(id); + this.newDeps.push(dep); + if (!this.depIds.has(id)) { + dep.addSub(this); + } + } +}; + +/** + * Clean up for dependency collection. + */ +Watcher.prototype.cleanupDeps = function cleanupDeps () { + var this$1 = this; + + var i = this.deps.length; + while (i--) { + var dep = this$1.deps[i]; + if (!this$1.newDepIds.has(dep.id)) { + dep.removeSub(this$1); + } + } + var tmp = this.depIds; + this.depIds = this.newDepIds; + this.newDepIds = tmp; + this.newDepIds.clear(); + tmp = this.deps; + this.deps = this.newDeps; + this.newDeps = tmp; + this.newDeps.length = 0; +}; + +/** + * Subscriber interface. + * Will be called when a dependency changes. + */ +Watcher.prototype.update = function update () { + /* istanbul ignore else */ + if (this.lazy) { + this.dirty = true; + } else if (this.sync) { + this.run(); + } else { + queueWatcher(this); + } +}; + +/** + * Scheduler job interface. + * Will be called by the scheduler. + */ +Watcher.prototype.run = function run () { + if (this.active) { + var value = this.get(); + if ( + value !== this.value || + // Deep watchers and watchers on Object/Arrays should fire even + // when the value is the same, because the value may + // have mutated. + isObject(value) || + this.deep + ) { + // set new value + var oldValue = this.value; + this.value = value; + if (this.user) { + try { + this.cb.call(this.vm, value, oldValue); + } catch (e) { + handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\"")); + } + } else { + this.cb.call(this.vm, value, oldValue); + } + } + } +}; + +/** + * Evaluate the value of the watcher. + * This only gets called for lazy watchers. + */ +Watcher.prototype.evaluate = function evaluate () { + this.value = this.get(); + this.dirty = false; +}; + +/** + * Depend on all deps collected by this watcher. + */ +Watcher.prototype.depend = function depend () { + var this$1 = this; + + var i = this.deps.length; + while (i--) { + this$1.deps[i].depend(); + } +}; + +/** + * Remove self from all dependencies' subscriber list. + */ +Watcher.prototype.teardown = function teardown () { + var this$1 = this; + + if (this.active) { + // remove self from vm's watcher list + // this is a somewhat expensive operation so we skip it + // if the vm is being destroyed. + if (!this.vm._isBeingDestroyed) { + remove(this.vm._watchers, this); + } + var i = this.deps.length; + while (i--) { + this$1.deps[i].removeSub(this$1); + } + this.active = false; + } +}; + +/* */ + +var sharedPropertyDefinition = { + enumerable: true, + configurable: true, + get: noop, + set: noop +}; + +function proxy (target, sourceKey, key) { + sharedPropertyDefinition.get = function proxyGetter () { + return this[sourceKey][key] + }; + sharedPropertyDefinition.set = function proxySetter (val) { + this[sourceKey][key] = val; + }; + Object.defineProperty(target, key, sharedPropertyDefinition); +} + +function initState (vm) { + vm._watchers = []; + var opts = vm.$options; + if (opts.props) { initProps(vm, opts.props); } + if (opts.methods) { initMethods(vm, opts.methods); } + if (opts.data) { + initData(vm); + } else { + observe(vm._data = {}, true /* asRootData */); + } + if (opts.computed) { initComputed(vm, opts.computed); } + if (opts.watch && opts.watch !== nativeWatch) { + initWatch(vm, opts.watch); + } +} + +function initProps (vm, propsOptions) { + var propsData = vm.$options.propsData || {}; + var props = vm._props = {}; + // cache prop keys so that future props updates can iterate using Array + // instead of dynamic object key enumeration. + var keys = vm.$options._propKeys = []; + var isRoot = !vm.$parent; + // root instance props should be converted + if (!isRoot) { + toggleObserving(false); + } + var loop = function ( key ) { + keys.push(key); + var value = validateProp(key, propsOptions, propsData, vm); + /* istanbul ignore else */ + { + var hyphenatedKey = hyphenate(key); + if (isReservedAttribute(hyphenatedKey) || + config.isReservedAttr(hyphenatedKey)) { + warn( + ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."), + vm + ); + } + defineReactive(props, key, value, function () { + if (vm.$parent && !isUpdatingChildComponent) { + warn( + "Avoid mutating a prop directly since the value will be " + + "overwritten whenever the parent component re-renders. " + + "Instead, use a data or computed property based on the prop's " + + "value. Prop being mutated: \"" + key + "\"", + vm + ); + } + }); + } + // static props are already proxied on the component's prototype + // during Vue.extend(). We only need to proxy props defined at + // instantiation here. + if (!(key in vm)) { + proxy(vm, "_props", key); + } + }; + + for (var key in propsOptions) loop( key ); + toggleObserving(true); +} + +function initData (vm) { + var data = vm.$options.data; + data = vm._data = typeof data === 'function' + ? getData(data, vm) + : data || {}; + if (!isPlainObject(data)) { + data = {}; + "development" !== 'production' && warn( + 'data functions should return an object:\n' + + 'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function', + vm + ); + } + // proxy data on instance + var keys = Object.keys(data); + var props = vm.$options.props; + var methods = vm.$options.methods; + var i = keys.length; + while (i--) { + var key = keys[i]; + { + if (methods && hasOwn(methods, key)) { + warn( + ("Method \"" + key + "\" has already been defined as a data property."), + vm + ); + } + } + if (props && hasOwn(props, key)) { + "development" !== 'production' && warn( + "The data property \"" + key + "\" is already declared as a prop. " + + "Use prop default value instead.", + vm + ); + } else if (!isReserved(key)) { + proxy(vm, "_data", key); + } + } + // observe data + observe(data, true /* asRootData */); +} + +function getData (data, vm) { + // #7573 disable dep collection when invoking data getters + pushTarget(); + try { + return data.call(vm, vm) + } catch (e) { + handleError(e, vm, "data()"); + return {} + } finally { + popTarget(); + } +} + +var computedWatcherOptions = { lazy: true }; + +function initComputed (vm, computed) { + // $flow-disable-line + var watchers = vm._computedWatchers = Object.create(null); + // computed properties are just getters during SSR + var isSSR = isServerRendering(); + + for (var key in computed) { + var userDef = computed[key]; + var getter = typeof userDef === 'function' ? userDef : userDef.get; + if ("development" !== 'production' && getter == null) { + warn( + ("Getter is missing for computed property \"" + key + "\"."), + vm + ); + } + + if (!isSSR) { + // create internal watcher for the computed property. + watchers[key] = new Watcher( + vm, + getter || noop, + noop, + computedWatcherOptions + ); + } + + // component-defined computed properties are already defined on the + // component prototype. We only need to define computed properties defined + // at instantiation here. + if (!(key in vm)) { + defineComputed(vm, key, userDef); + } else { + if (key in vm.$data) { + warn(("The computed property \"" + key + "\" is already defined in data."), vm); + } else if (vm.$options.props && key in vm.$options.props) { + warn(("The computed property \"" + key + "\" is already defined as a prop."), vm); + } + } + } +} + +function defineComputed ( + target, + key, + userDef +) { + var shouldCache = !isServerRendering(); + if (typeof userDef === 'function') { + sharedPropertyDefinition.get = shouldCache + ? createComputedGetter(key) + : userDef; + sharedPropertyDefinition.set = noop; + } else { + sharedPropertyDefinition.get = userDef.get + ? shouldCache && userDef.cache !== false + ? createComputedGetter(key) + : userDef.get + : noop; + sharedPropertyDefinition.set = userDef.set + ? userDef.set + : noop; + } + if ("development" !== 'production' && + sharedPropertyDefinition.set === noop) { + sharedPropertyDefinition.set = function () { + warn( + ("Computed property \"" + key + "\" was assigned to but it has no setter."), + this + ); + }; + } + Object.defineProperty(target, key, sharedPropertyDefinition); +} + +function createComputedGetter (key) { + return function computedGetter () { + var watcher = this._computedWatchers && this._computedWatchers[key]; + if (watcher) { + if (watcher.dirty) { + watcher.evaluate(); + } + if (Dep.target) { + watcher.depend(); + } + return watcher.value + } + } +} + +function initMethods (vm, methods) { + var props = vm.$options.props; + for (var key in methods) { + { + if (methods[key] == null) { + warn( + "Method \"" + key + "\" has an undefined value in the component definition. " + + "Did you reference the function correctly?", + vm + ); + } + if (props && hasOwn(props, key)) { + warn( + ("Method \"" + key + "\" has already been defined as a prop."), + vm + ); + } + if ((key in vm) && isReserved(key)) { + warn( + "Method \"" + key + "\" conflicts with an existing Vue instance method. " + + "Avoid defining component methods that start with _ or $." + ); + } + } + vm[key] = methods[key] == null ? noop : bind(methods[key], vm); + } +} + +function initWatch (vm, watch) { + for (var key in watch) { + var handler = watch[key]; + if (Array.isArray(handler)) { + for (var i = 0; i < handler.length; i++) { + createWatcher(vm, key, handler[i]); + } + } else { + createWatcher(vm, key, handler); + } + } +} + +function createWatcher ( + vm, + expOrFn, + handler, + options +) { + if (isPlainObject(handler)) { + options = handler; + handler = handler.handler; + } + if (typeof handler === 'string') { + handler = vm[handler]; + } + return vm.$watch(expOrFn, handler, options) +} + +function stateMixin (Vue) { + // flow somehow has problems with directly declared definition object + // when using Object.defineProperty, so we have to procedurally build up + // the object here. + var dataDef = {}; + dataDef.get = function () { return this._data }; + var propsDef = {}; + propsDef.get = function () { return this._props }; + { + dataDef.set = function (newData) { + warn( + 'Avoid replacing instance root $data. ' + + 'Use nested data properties instead.', + this + ); + }; + propsDef.set = function () { + warn("$props is readonly.", this); + }; + } + Object.defineProperty(Vue.prototype, '$data', dataDef); + Object.defineProperty(Vue.prototype, '$props', propsDef); + + Vue.prototype.$set = set; + Vue.prototype.$delete = del; + + Vue.prototype.$watch = function ( + expOrFn, + cb, + options + ) { + var vm = this; + if (isPlainObject(cb)) { + return createWatcher(vm, expOrFn, cb, options) + } + options = options || {}; + options.user = true; + var watcher = new Watcher(vm, expOrFn, cb, options); + if (options.immediate) { + cb.call(vm, watcher.value); + } + return function unwatchFn () { + watcher.teardown(); + } + }; +} + +/* */ + +function initProvide (vm) { + var provide = vm.$options.provide; + if (provide) { + vm._provided = typeof provide === 'function' + ? provide.call(vm) + : provide; + } +} + +function initInjections (vm) { + var result = resolveInject(vm.$options.inject, vm); + if (result) { + toggleObserving(false); + Object.keys(result).forEach(function (key) { + /* istanbul ignore else */ + { + defineReactive(vm, key, result[key], function () { + warn( + "Avoid mutating an injected value directly since the changes will be " + + "overwritten whenever the provided component re-renders. " + + "injection being mutated: \"" + key + "\"", + vm + ); + }); + } + }); + toggleObserving(true); + } +} + +function resolveInject (inject, vm) { + if (inject) { + // inject is :any because flow is not smart enough to figure out cached + var result = Object.create(null); + var keys = hasSymbol + ? Reflect.ownKeys(inject).filter(function (key) { + /* istanbul ignore next */ + return Object.getOwnPropertyDescriptor(inject, key).enumerable + }) + : Object.keys(inject); + + for (var i = 0; i < keys.length; i++) { + var key = keys[i]; + var provideKey = inject[key].from; + var source = vm; + while (source) { + if (source._provided && hasOwn(source._provided, provideKey)) { + result[key] = source._provided[provideKey]; + break + } + source = source.$parent; + } + if (!source) { + if ('default' in inject[key]) { + var provideDefault = inject[key].default; + result[key] = typeof provideDefault === 'function' + ? provideDefault.call(vm) + : provideDefault; + } else { + warn(("Injection \"" + key + "\" not found"), vm); + } + } + } + return result + } +} + +/* */ + +/** + * Runtime helper for rendering v-for lists. + */ +function renderList ( + val, + render +) { + var ret, i, l, keys, key; + if (Array.isArray(val) || typeof val === 'string') { + ret = new Array(val.length); + for (i = 0, l = val.length; i < l; i++) { + ret[i] = render(val[i], i); + } + } else if (typeof val === 'number') { + ret = new Array(val); + for (i = 0; i < val; i++) { + ret[i] = render(i + 1, i); + } + } else if (isObject(val)) { + keys = Object.keys(val); + ret = new Array(keys.length); + for (i = 0, l = keys.length; i < l; i++) { + key = keys[i]; + ret[i] = render(val[key], key, i); + } + } + if (isDef(ret)) { + (ret)._isVList = true; + } + return ret +} + +/* */ + +/** + * Runtime helper for rendering <slot> + */ +function renderSlot ( + name, + fallback, + props, + bindObject +) { + var scopedSlotFn = this.$scopedSlots[name]; + var nodes; + if (scopedSlotFn) { // scoped slot + props = props || {}; + if (bindObject) { + if ("development" !== 'production' && !isObject(bindObject)) { + warn( + 'slot v-bind without argument expects an Object', + this + ); + } + props = extend(extend({}, bindObject), props); + } + nodes = scopedSlotFn(props) || fallback; + } else { + var slotNodes = this.$slots[name]; + // warn duplicate slot usage + if (slotNodes) { + if ("development" !== 'production' && slotNodes._rendered) { + warn( + "Duplicate presence of slot \"" + name + "\" found in the same render tree " + + "- this will likely cause render errors.", + this + ); + } + slotNodes._rendered = true; + } + nodes = slotNodes || fallback; + } + + var target = props && props.slot; + if (target) { + return this.$createElement('template', { slot: target }, nodes) + } else { + return nodes + } +} + +/* */ + +/** + * Runtime helper for resolving filters + */ +function resolveFilter (id) { + return resolveAsset(this.$options, 'filters', id, true) || identity +} + +/* */ + +function isKeyNotMatch (expect, actual) { + if (Array.isArray(expect)) { + return expect.indexOf(actual) === -1 + } else { + return expect !== actual + } +} + +/** + * Runtime helper for checking keyCodes from config. + * exposed as Vue.prototype._k + * passing in eventKeyName as last argument separately for backwards compat + */ +function checkKeyCodes ( + eventKeyCode, + key, + builtInKeyCode, + eventKeyName, + builtInKeyName +) { + var mappedKeyCode = config.keyCodes[key] || builtInKeyCode; + if (builtInKeyName && eventKeyName && !config.keyCodes[key]) { + return isKeyNotMatch(builtInKeyName, eventKeyName) + } else if (mappedKeyCode) { + return isKeyNotMatch(mappedKeyCode, eventKeyCode) + } else if (eventKeyName) { + return hyphenate(eventKeyName) !== key + } +} + +/* */ + +/** + * Runtime helper for merging v-bind="object" into a VNode's data. + */ +function bindObjectProps ( + data, + tag, + value, + asProp, + isSync +) { + if (value) { + if (!isObject(value)) { + "development" !== 'production' && warn( + 'v-bind without argument expects an Object or Array value', + this + ); + } else { + if (Array.isArray(value)) { + value = toObject(value); + } + var hash; + var loop = function ( key ) { + if ( + key === 'class' || + key === 'style' || + isReservedAttribute(key) + ) { + hash = data; + } else { + var type = data.attrs && data.attrs.type; + hash = asProp || config.mustUseProp(tag, type, key) + ? data.domProps || (data.domProps = {}) + : data.attrs || (data.attrs = {}); + } + if (!(key in hash)) { + hash[key] = value[key]; + + if (isSync) { + var on = data.on || (data.on = {}); + on[("update:" + key)] = function ($event) { + value[key] = $event; + }; + } + } + }; + + for (var key in value) loop( key ); + } + } + return data +} + +/* */ + +/** + * Runtime helper for rendering static trees. + */ +function renderStatic ( + index, + isInFor +) { + var cached = this._staticTrees || (this._staticTrees = []); + var tree = cached[index]; + // if has already-rendered static tree and not inside v-for, + // we can reuse the same tree. + if (tree && !isInFor) { + return tree + } + // otherwise, render a fresh tree. + tree = cached[index] = this.$options.staticRenderFns[index].call( + this._renderProxy, + null, + this // for render fns generated for functional component templates + ); + markStatic(tree, ("__static__" + index), false); + return tree +} + +/** + * Runtime helper for v-once. + * Effectively it means marking the node as static with a unique key. + */ +function markOnce ( + tree, + index, + key +) { + markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true); + return tree +} + +function markStatic ( + tree, + key, + isOnce +) { + if (Array.isArray(tree)) { + for (var i = 0; i < tree.length; i++) { + if (tree[i] && typeof tree[i] !== 'string') { + markStaticNode(tree[i], (key + "_" + i), isOnce); + } + } + } else { + markStaticNode(tree, key, isOnce); + } +} + +function markStaticNode (node, key, isOnce) { + node.isStatic = true; + node.key = key; + node.isOnce = isOnce; +} + +/* */ + +function bindObjectListeners (data, value) { + if (value) { + if (!isPlainObject(value)) { + "development" !== 'production' && warn( + 'v-on without argument expects an Object value', + this + ); + } else { + var on = data.on = data.on ? extend({}, data.on) : {}; + for (var key in value) { + var existing = on[key]; + var ours = value[key]; + on[key] = existing ? [].concat(existing, ours) : ours; + } + } + } + return data +} + +/* */ + +function installRenderHelpers (target) { + target._o = markOnce; + target._n = toNumber; + target._s = toString; + target._l = renderList; + target._t = renderSlot; + target._q = looseEqual; + target._i = looseIndexOf; + target._m = renderStatic; + target._f = resolveFilter; + target._k = checkKeyCodes; + target._b = bindObjectProps; + target._v = createTextVNode; + target._e = createEmptyVNode; + target._u = resolveScopedSlots; + target._g = bindObjectListeners; +} + +/* */ + +function FunctionalRenderContext ( + data, + props, + children, + parent, + Ctor +) { + var options = Ctor.options; + // ensure the createElement function in functional components + // gets a unique context - this is necessary for correct named slot check + var contextVm; + if (hasOwn(parent, '_uid')) { + contextVm = Object.create(parent); + // $flow-disable-line + contextVm._original = parent; + } else { + // the context vm passed in is a functional context as well. + // in this case we want to make sure we are able to get a hold to the + // real context instance. + contextVm = parent; + // $flow-disable-line + parent = parent._original; + } + var isCompiled = isTrue(options._compiled); + var needNormalization = !isCompiled; + + this.data = data; + this.props = props; + this.children = children; + this.parent = parent; + this.listeners = data.on || emptyObject; + this.injections = resolveInject(options.inject, parent); + this.slots = function () { return resolveSlots(children, parent); }; + + // support for compiled functional template + if (isCompiled) { + // exposing $options for renderStatic() + this.$options = options; + // pre-resolve slots for renderSlot() + this.$slots = this.slots(); + this.$scopedSlots = data.scopedSlots || emptyObject; + } + + if (options._scopeId) { + this._c = function (a, b, c, d) { + var vnode = createElement(contextVm, a, b, c, d, needNormalization); + if (vnode && !Array.isArray(vnode)) { + vnode.fnScopeId = options._scopeId; + vnode.fnContext = parent; + } + return vnode + }; + } else { + this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); }; + } +} + +installRenderHelpers(FunctionalRenderContext.prototype); + +function createFunctionalComponent ( + Ctor, + propsData, + data, + contextVm, + children +) { + var options = Ctor.options; + var props = {}; + var propOptions = options.props; + if (isDef(propOptions)) { + for (var key in propOptions) { + props[key] = validateProp(key, propOptions, propsData || emptyObject); + } + } else { + if (isDef(data.attrs)) { mergeProps(props, data.attrs); } + if (isDef(data.props)) { mergeProps(props, data.props); } + } + + var renderContext = new FunctionalRenderContext( + data, + props, + children, + contextVm, + Ctor + ); + + var vnode = options.render.call(null, renderContext._c, renderContext); + + if (vnode instanceof VNode) { + return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options) + } else if (Array.isArray(vnode)) { + var vnodes = normalizeChildren(vnode) || []; + var res = new Array(vnodes.length); + for (var i = 0; i < vnodes.length; i++) { + res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options); + } + return res + } +} + +function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) { + // #7817 clone node before setting fnContext, otherwise if the node is reused + // (e.g. it was from a cached normal slot) the fnContext causes named slots + // that should not be matched to match. + var clone = cloneVNode(vnode); + clone.fnContext = contextVm; + clone.fnOptions = options; + if (data.slot) { + (clone.data || (clone.data = {})).slot = data.slot; + } + return clone +} + +function mergeProps (to, from) { + for (var key in from) { + to[camelize(key)] = from[key]; + } +} + +/* */ + + + + +// Register the component hook to weex native render engine. +// The hook will be triggered by native, not javascript. + + +// Updates the state of the component to weex native render engine. + +/* */ + +// https://github.com/Hanks10100/weex-native-directive/tree/master/component + +// listening on native callback + +/* */ + +/* */ + +// inline hooks to be invoked on component VNodes during patch +var componentVNodeHooks = { + init: function init ( + vnode, + hydrating, + parentElm, + refElm + ) { + if ( + vnode.componentInstance && + !vnode.componentInstance._isDestroyed && + vnode.data.keepAlive + ) { + // kept-alive components, treat as a patch + var mountedNode = vnode; // work around flow + componentVNodeHooks.prepatch(mountedNode, mountedNode); + } else { + var child = vnode.componentInstance = createComponentInstanceForVnode( + vnode, + activeInstance, + parentElm, + refElm + ); + child.$mount(hydrating ? vnode.elm : undefined, hydrating); + } + }, + + prepatch: function prepatch (oldVnode, vnode) { + var options = vnode.componentOptions; + var child = vnode.componentInstance = oldVnode.componentInstance; + updateChildComponent( + child, + options.propsData, // updated props + options.listeners, // updated listeners + vnode, // new parent vnode + options.children // new children + ); + }, + + insert: function insert (vnode) { + var context = vnode.context; + var componentInstance = vnode.componentInstance; + if (!componentInstance._isMounted) { + componentInstance._isMounted = true; + callHook(componentInstance, 'mounted'); + } + if (vnode.data.keepAlive) { + if (context._isMounted) { + // vue-router#1212 + // During updates, a kept-alive component's child components may + // change, so directly walking the tree here may call activated hooks + // on incorrect children. Instead we push them into a queue which will + // be processed after the whole patch process ended. + queueActivatedComponent(componentInstance); + } else { + activateChildComponent(componentInstance, true /* direct */); + } + } + }, + + destroy: function destroy (vnode) { + var componentInstance = vnode.componentInstance; + if (!componentInstance._isDestroyed) { + if (!vnode.data.keepAlive) { + componentInstance.$destroy(); + } else { + deactivateChildComponent(componentInstance, true /* direct */); + } + } + } +}; + +var hooksToMerge = Object.keys(componentVNodeHooks); + +function createComponent ( + Ctor, + data, + context, + children, + tag +) { + if (isUndef(Ctor)) { + return + } + + var baseCtor = context.$options._base; + + // plain options object: turn it into a constructor + if (isObject(Ctor)) { + Ctor = baseCtor.extend(Ctor); + } + + // if at this stage it's not a constructor or an async component factory, + // reject. + if (typeof Ctor !== 'function') { + { + warn(("Invalid Component definition: " + (String(Ctor))), context); + } + return + } + + // async component + var asyncFactory; + if (isUndef(Ctor.cid)) { + asyncFactory = Ctor; + Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context); + if (Ctor === undefined) { + // return a placeholder node for async component, which is rendered + // as a comment node but preserves all the raw information for the node. + // the information will be used for async server-rendering and hydration. + return createAsyncPlaceholder( + asyncFactory, + data, + context, + children, + tag + ) + } + } + + data = data || {}; + + // resolve constructor options in case global mixins are applied after + // component constructor creation + resolveConstructorOptions(Ctor); + + // transform component v-model data into props & events + if (isDef(data.model)) { + transformModel(Ctor.options, data); + } + + // extract props + var propsData = extractPropsFromVNodeData(data, Ctor, tag); + + // functional component + if (isTrue(Ctor.options.functional)) { + return createFunctionalComponent(Ctor, propsData, data, context, children) + } + + // extract listeners, since these needs to be treated as + // child component listeners instead of DOM listeners + var listeners = data.on; + // replace with listeners with .native modifier + // so it gets processed during parent component patch. + data.on = data.nativeOn; + + if (isTrue(Ctor.options.abstract)) { + // abstract components do not keep anything + // other than props & listeners & slot + + // work around flow + var slot = data.slot; + data = {}; + if (slot) { + data.slot = slot; + } + } + + // install component management hooks onto the placeholder node + installComponentHooks(data); + + // return a placeholder vnode + var name = Ctor.options.name || tag; + var vnode = new VNode( + ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')), + data, undefined, undefined, undefined, context, + { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children }, + asyncFactory + ); + + // Weex specific: invoke recycle-list optimized @render function for + // extracting cell-slot template. + // https://github.com/Hanks10100/weex-native-directive/tree/master/component + /* istanbul ignore if */ + return vnode +} + +function createComponentInstanceForVnode ( + vnode, // we know it's MountedComponentVNode but flow doesn't + parent, // activeInstance in lifecycle state + parentElm, + refElm +) { + var options = { + _isComponent: true, + parent: parent, + _parentVnode: vnode, + _parentElm: parentElm || null, + _refElm: refElm || null + }; + // check inline-template render functions + var inlineTemplate = vnode.data.inlineTemplate; + if (isDef(inlineTemplate)) { + options.render = inlineTemplate.render; + options.staticRenderFns = inlineTemplate.staticRenderFns; + } + return new vnode.componentOptions.Ctor(options) +} + +function installComponentHooks (data) { + var hooks = data.hook || (data.hook = {}); + for (var i = 0; i < hooksToMerge.length; i++) { + var key = hooksToMerge[i]; + hooks[key] = componentVNodeHooks[key]; + } +} + +// transform component v-model info (value and callback) into +// prop and event handler respectively. +function transformModel (options, data) { + var prop = (options.model && options.model.prop) || 'value'; + var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value; + var on = data.on || (data.on = {}); + if (isDef(on[event])) { + on[event] = [data.model.callback].concat(on[event]); + } else { + on[event] = data.model.callback; + } +} + +/* */ + +var SIMPLE_NORMALIZE = 1; +var ALWAYS_NORMALIZE = 2; + +// wrapper function for providing a more flexible interface +// without getting yelled at by flow +function createElement ( + context, + tag, + data, + children, + normalizationType, + alwaysNormalize +) { + if (Array.isArray(data) || isPrimitive(data)) { + normalizationType = children; + children = data; + data = undefined; + } + if (isTrue(alwaysNormalize)) { + normalizationType = ALWAYS_NORMALIZE; + } + return _createElement(context, tag, data, children, normalizationType) +} + +function _createElement ( + context, + tag, + data, + children, + normalizationType +) { + if (isDef(data) && isDef((data).__ob__)) { + "development" !== 'production' && warn( + "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" + + 'Always create fresh vnode data objects in each render!', + context + ); + return createEmptyVNode() + } + // object syntax in v-bind + if (isDef(data) && isDef(data.is)) { + tag = data.is; + } + if (!tag) { + // in case of component :is set to falsy value + return createEmptyVNode() + } + // warn against non-primitive key + if ("development" !== 'production' && + isDef(data) && isDef(data.key) && !isPrimitive(data.key) + ) { + { + warn( + 'Avoid using non-primitive value as key, ' + + 'use string/number value instead.', + context + ); + } + } + // support single function children as default scoped slot + if (Array.isArray(children) && + typeof children[0] === 'function' + ) { + data = data || {}; + data.scopedSlots = { default: children[0] }; + children.length = 0; + } + if (normalizationType === ALWAYS_NORMALIZE) { + children = normalizeChildren(children); + } else if (normalizationType === SIMPLE_NORMALIZE) { + children = simpleNormalizeChildren(children); + } + var vnode, ns; + if (typeof tag === 'string') { + var Ctor; + ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag); + if (config.isReservedTag(tag)) { + // platform built-in elements + vnode = new VNode( + config.parsePlatformTagName(tag), data, children, + undefined, undefined, context + ); + } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) { + // component + vnode = createComponent(Ctor, data, context, children, tag); + } else { + // unknown or unlisted namespaced elements + // check at runtime because it may get assigned a namespace when its + // parent normalizes children + vnode = new VNode( + tag, data, children, + undefined, undefined, context + ); + } + } else { + // direct component options / constructor + vnode = createComponent(tag, data, context, children); + } + if (Array.isArray(vnode)) { + return vnode + } else if (isDef(vnode)) { + if (isDef(ns)) { applyNS(vnode, ns); } + if (isDef(data)) { registerDeepBindings(data); } + return vnode + } else { + return createEmptyVNode() + } +} + +function applyNS (vnode, ns, force) { + vnode.ns = ns; + if (vnode.tag === 'foreignObject') { + // use default namespace inside foreignObject + ns = undefined; + force = true; + } + if (isDef(vnode.children)) { + for (var i = 0, l = vnode.children.length; i < l; i++) { + var child = vnode.children[i]; + if (isDef(child.tag) && ( + isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) { + applyNS(child, ns, force); + } + } + } +} + +// ref #5318 +// necessary to ensure parent re-render when deep bindings like :style and +// :class are used on slot nodes +function registerDeepBindings (data) { + if (isObject(data.style)) { + traverse(data.style); + } + if (isObject(data.class)) { + traverse(data.class); + } +} + +/* */ + +function initRender (vm) { + vm._vnode = null; // the root of the child tree + vm._staticTrees = null; // v-once cached trees + var options = vm.$options; + var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree + var renderContext = parentVnode && parentVnode.context; + vm.$slots = resolveSlots(options._renderChildren, renderContext); + vm.$scopedSlots = emptyObject; + // bind the createElement fn to this instance + // so that we get proper render context inside it. + // args order: tag, data, children, normalizationType, alwaysNormalize + // internal version is used by render functions compiled from templates + vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); }; + // normalization is always applied for the public version, used in + // user-written render functions. + vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); }; + + // $attrs & $listeners are exposed for easier HOC creation. + // they need to be reactive so that HOCs using them are always updated + var parentData = parentVnode && parentVnode.data; + + /* istanbul ignore else */ + { + defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () { + !isUpdatingChildComponent && warn("$attrs is readonly.", vm); + }, true); + defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () { + !isUpdatingChildComponent && warn("$listeners is readonly.", vm); + }, true); + } +} + +function renderMixin (Vue) { + // install runtime convenience helpers + installRenderHelpers(Vue.prototype); + + Vue.prototype.$nextTick = function (fn) { + return nextTick(fn, this) + }; + + Vue.prototype._render = function () { + var vm = this; + var ref = vm.$options; + var render = ref.render; + var _parentVnode = ref._parentVnode; + + // reset _rendered flag on slots for duplicate slot check + { + for (var key in vm.$slots) { + // $flow-disable-line + vm.$slots[key]._rendered = false; + } + } + + if (_parentVnode) { + vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject; + } + + // set parent vnode. this allows render functions to have access + // to the data on the placeholder node. + vm.$vnode = _parentVnode; + // render self + var vnode; + try { + vnode = render.call(vm._renderProxy, vm.$createElement); + } catch (e) { + handleError(e, vm, "render"); + // return error render result, + // or previous vnode to prevent render error causing blank component + /* istanbul ignore else */ + { + if (vm.$options.renderError) { + try { + vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e); + } catch (e) { + handleError(e, vm, "renderError"); + vnode = vm._vnode; + } + } else { + vnode = vm._vnode; + } + } + } + // return empty vnode in case the render function errored out + if (!(vnode instanceof VNode)) { + if ("development" !== 'production' && Array.isArray(vnode)) { + warn( + 'Multiple root nodes returned from render function. Render function ' + + 'should return a single root node.', + vm + ); + } + vnode = createEmptyVNode(); + } + // set parent + vnode.parent = _parentVnode; + return vnode + }; +} + +/* */ + +var uid$3 = 0; + +function initMixin (Vue) { + Vue.prototype._init = function (options) { + var vm = this; + // a uid + vm._uid = uid$3++; + + var startTag, endTag; + /* istanbul ignore if */ + if ("development" !== 'production' && config.performance && mark) { + startTag = "vue-perf-start:" + (vm._uid); + endTag = "vue-perf-end:" + (vm._uid); + mark(startTag); + } + + // a flag to avoid this being observed + vm._isVue = true; + // merge options + if (options && options._isComponent) { + // optimize internal component instantiation + // since dynamic options merging is pretty slow, and none of the + // internal component options needs special treatment. + initInternalComponent(vm, options); + } else { + vm.$options = mergeOptions( + resolveConstructorOptions(vm.constructor), + options || {}, + vm + ); + } + /* istanbul ignore else */ + { + 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(("vue " + (vm._name) + " init"), startTag, endTag); + } + + if (vm.$options.el) { + vm.$mount(vm.$options.el); + } + }; +} + +function initInternalComponent (vm, options) { + var opts = vm.$options = Object.create(vm.constructor.options); + // doing this because it's faster than dynamic enumeration. + var parentVnode = options._parentVnode; + opts.parent = options.parent; + opts._parentVnode = parentVnode; + opts._parentElm = options._parentElm; + opts._refElm = options._refElm; + + var vnodeComponentOptions = parentVnode.componentOptions; + opts.propsData = vnodeComponentOptions.propsData; + opts._parentListeners = vnodeComponentOptions.listeners; + opts._renderChildren = vnodeComponentOptions.children; + opts._componentTag = vnodeComponentOptions.tag; + + if (options.render) { + opts.render = options.render; + opts.staticRenderFns = options.staticRenderFns; + } +} + +function resolveConstructorOptions (Ctor) { + var options = Ctor.options; + if (Ctor.super) { + var superOptions = resolveConstructorOptions(Ctor.super); + var cachedSuperOptions = Ctor.superOptions; + if (superOptions !== cachedSuperOptions) { + // super option changed, + // need to resolve new options. + Ctor.superOptions = superOptions; + // check if there are any late-modified/attached options (#4976) + var modifiedOptions = resolveModifiedOptions(Ctor); + // update base extend options + if (modifiedOptions) { + extend(Ctor.extendOptions, modifiedOptions); + } + options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions); + if (options.name) { + options.components[options.name] = Ctor; + } + } + } + return options +} + +function resolveModifiedOptions (Ctor) { + var modified; + var latest = Ctor.options; + var extended = Ctor.extendOptions; + var sealed = Ctor.sealedOptions; + for (var key in latest) { + if (latest[key] !== sealed[key]) { + if (!modified) { modified = {}; } + modified[key] = dedupe(latest[key], extended[key], sealed[key]); + } + } + return modified +} + +function dedupe (latest, extended, sealed) { + // compare latest and sealed to ensure lifecycle hooks won't be duplicated + // between merges + if (Array.isArray(latest)) { + var res = []; + sealed = Array.isArray(sealed) ? sealed : [sealed]; + extended = Array.isArray(extended) ? extended : [extended]; + for (var i = 0; i < latest.length; i++) { + // push original options and not sealed options to exclude duplicated options + if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) { + res.push(latest[i]); + } + } + return res + } else { + return latest + } +} + +function Vue (options) { + if ("development" !== 'production' && + !(this instanceof Vue) + ) { + warn('Vue is a constructor and should be called with the `new` keyword'); + } + this._init(options); +} + +initMixin(Vue); +stateMixin(Vue); +eventsMixin(Vue); +lifecycleMixin(Vue); +renderMixin(Vue); + +/* */ + +function initUse (Vue) { + Vue.use = function (plugin) { + var installedPlugins = (this._installedPlugins || (this._installedPlugins = [])); + if (installedPlugins.indexOf(plugin) > -1) { + return this + } + + // additional parameters + var args = toArray(arguments, 1); + args.unshift(this); + if (typeof plugin.install === 'function') { + plugin.install.apply(plugin, args); + } else if (typeof plugin === 'function') { + plugin.apply(null, args); + } + installedPlugins.push(plugin); + return this + }; +} + +/* */ + +function initMixin$1 (Vue) { + Vue.mixin = function (mixin) { + this.options = mergeOptions(this.options, mixin); + return this + }; +} + +/* */ + +function initExtend (Vue) { + /** + * Each instance constructor, including Vue, has a unique + * cid. This enables us to create wrapped "child + * constructors" for prototypal inheritance and cache them. + */ + Vue.cid = 0; + var cid = 1; + + /** + * Class inheritance + */ + Vue.extend = function (extendOptions) { + extendOptions = extendOptions || {}; + var Super = this; + var SuperId = Super.cid; + var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {}); + if (cachedCtors[SuperId]) { + return cachedCtors[SuperId] + } + + var name = extendOptions.name || Super.options.name; + if ("development" !== 'production' && name) { + validateComponentName(name); + } + + var Sub = function VueComponent (options) { + this._init(options); + }; + Sub.prototype = Object.create(Super.prototype); + Sub.prototype.constructor = Sub; + Sub.cid = cid++; + Sub.options = mergeOptions( + Super.options, + extendOptions + ); + Sub['super'] = Super; + + // For props and computed properties, we define the proxy getters on + // the Vue instances at extension time, on the extended prototype. This + // avoids Object.defineProperty calls for each instance created. + if (Sub.options.props) { + initProps$1(Sub); + } + if (Sub.options.computed) { + initComputed$1(Sub); + } + + // allow further extension/mixin/plugin usage + Sub.extend = Super.extend; + Sub.mixin = Super.mixin; + Sub.use = Super.use; + + // create asset registers, so extended classes + // can have their private assets too. + ASSET_TYPES.forEach(function (type) { + Sub[type] = Super[type]; + }); + // enable recursive self-lookup + if (name) { + Sub.options.components[name] = Sub; + } + + // keep a reference to the super options at extension time. + // later at instantiation we can check if Super's options have + // been updated. + Sub.superOptions = Super.options; + Sub.extendOptions = extendOptions; + Sub.sealedOptions = extend({}, Sub.options); + + // cache constructor + cachedCtors[SuperId] = Sub; + return Sub + }; +} + +function initProps$1 (Comp) { + var props = Comp.options.props; + for (var key in props) { + proxy(Comp.prototype, "_props", key); + } +} + +function initComputed$1 (Comp) { + var computed = Comp.options.computed; + for (var key in computed) { + defineComputed(Comp.prototype, key, computed[key]); + } +} + +/* */ + +function initAssetRegisters (Vue) { + /** + * Create asset registration methods. + */ + ASSET_TYPES.forEach(function (type) { + Vue[type] = function ( + id, + definition + ) { + if (!definition) { + return this.options[type + 's'][id] + } else { + /* istanbul ignore if */ + if ("development" !== 'production' && type === 'component') { + validateComponentName(id); + } + if (type === 'component' && isPlainObject(definition)) { + definition.name = definition.name || id; + definition = this.options._base.extend(definition); + } + if (type === 'directive' && typeof definition === 'function') { + definition = { bind: definition, update: definition }; + } + this.options[type + 's'][id] = definition; + return definition + } + }; + }); +} + +/* */ + +function getComponentName (opts) { + return opts && (opts.Ctor.options.name || opts.tag) +} + +function matches (pattern, name) { + if (Array.isArray(pattern)) { + return pattern.indexOf(name) > -1 + } else if (typeof pattern === 'string') { + return pattern.split(',').indexOf(name) > -1 + } else if (isRegExp(pattern)) { + return pattern.test(name) + } + /* istanbul ignore next */ + return false +} + +function pruneCache (keepAliveInstance, filter) { + var cache = keepAliveInstance.cache; + var keys = keepAliveInstance.keys; + var _vnode = keepAliveInstance._vnode; + for (var key in cache) { + var cachedNode = cache[key]; + if (cachedNode) { + var name = getComponentName(cachedNode.componentOptions); + if (name && !filter(name)) { + pruneCacheEntry(cache, key, keys, _vnode); + } + } + } +} + +function pruneCacheEntry ( + cache, + key, + keys, + current +) { + var cached$$1 = cache[key]; + if (cached$$1 && (!current || cached$$1.tag !== current.tag)) { + cached$$1.componentInstance.$destroy(); + } + cache[key] = null; + remove(keys, key); +} + +var patternTypes = [String, RegExp, Array]; + +var KeepAlive = { + name: 'keep-alive', + abstract: true, + + props: { + include: patternTypes, + exclude: patternTypes, + max: [String, Number] + }, + + created: function created () { + this.cache = Object.create(null); + this.keys = []; + }, + + destroyed: function destroyed () { + var this$1 = this; + + for (var key in this$1.cache) { + pruneCacheEntry(this$1.cache, key, this$1.keys); + } + }, + + mounted: function mounted () { + var this$1 = this; + + this.$watch('include', function (val) { + pruneCache(this$1, function (name) { return matches(val, name); }); + }); + this.$watch('exclude', function (val) { + pruneCache(this$1, function (name) { return !matches(val, name); }); + }); + }, + + render: function render () { + var slot = this.$slots.default; + var vnode = getFirstComponentChild(slot); + var componentOptions = vnode && vnode.componentOptions; + if (componentOptions) { + // check pattern + var name = getComponentName(componentOptions); + var ref = this; + var include = ref.include; + var exclude = ref.exclude; + if ( + // not included + (include && (!name || !matches(include, name))) || + // excluded + (exclude && name && matches(exclude, name)) + ) { + return vnode + } + + var ref$1 = this; + var cache = ref$1.cache; + var keys = ref$1.keys; + var key = vnode.key == null + // same constructor may get registered as different local components + // so cid alone is not enough (#3269) + ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '') + : vnode.key; + if (cache[key]) { + vnode.componentInstance = cache[key].componentInstance; + // make current key freshest + remove(keys, key); + keys.push(key); + } else { + cache[key] = vnode; + keys.push(key); + // prune oldest entry + if (this.max && keys.length > parseInt(this.max)) { + pruneCacheEntry(cache, keys[0], keys, this._vnode); + } + } + + vnode.data.keepAlive = true; + } + return vnode || (slot && slot[0]) + } +} + +var builtInComponents = { + KeepAlive: KeepAlive +} + +/* */ + +function initGlobalAPI (Vue) { + // config + var configDef = {}; + configDef.get = function () { return config; }; + { + configDef.set = function () { + warn( + 'Do not replace the Vue.config object, set individual fields instead.' + ); + }; + } + Object.defineProperty(Vue, 'config', configDef); + + // exposed util methods. + // NOTE: these are not considered part of the public API - avoid relying on + // them unless you are aware of the risk. + Vue.util = { + warn: warn, + extend: extend, + mergeOptions: mergeOptions, + defineReactive: defineReactive + }; + + Vue.set = set; + Vue.delete = del; + Vue.nextTick = nextTick; + + Vue.options = Object.create(null); + ASSET_TYPES.forEach(function (type) { + Vue.options[type + 's'] = Object.create(null); + }); + + // this is used to identify the "base" constructor to extend all plain-object + // components with in Weex's multi-instance scenarios. + Vue.options._base = Vue; + + extend(Vue.options.components, builtInComponents); + + initUse(Vue); + initMixin$1(Vue); + initExtend(Vue); + initAssetRegisters(Vue); +} + +initGlobalAPI(Vue); + +Object.defineProperty(Vue.prototype, '$isServer', { + get: isServerRendering +}); + +Object.defineProperty(Vue.prototype, '$ssrContext', { + get: function get () { + /* istanbul ignore next */ + return this.$vnode && this.$vnode.ssrContext + } +}); + +// expose FunctionalRenderContext for ssr runtime helper installation +Object.defineProperty(Vue, 'FunctionalRenderContext', { + value: FunctionalRenderContext +}); + +Vue.version = '2.5.17'; + +/* */ + +// these are reserved for web because they are directly compiled away +// during template compilation +var isReservedAttr = makeMap('style,class'); + +// attributes that should be using props for binding +var acceptValue = makeMap('input,textarea,option,select,progress'); +var mustUseProp = function (tag, type, attr) { + return ( + (attr === 'value' && acceptValue(tag)) && type !== 'button' || + (attr === 'selected' && tag === 'option') || + (attr === 'checked' && tag === 'input') || + (attr === 'muted' && tag === 'video') + ) +}; + +var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck'); + +var isBooleanAttr = makeMap( + 'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' + + 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' + + 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' + + 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' + + 'required,reversed,scoped,seamless,selected,sortable,translate,' + + 'truespeed,typemustmatch,visible' +); + +var xlinkNS = 'http://www.w3.org/1999/xlink'; + +var isXlink = function (name) { + return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink' +}; + +var getXlinkProp = function (name) { + return isXlink(name) ? name.slice(6, name.length) : '' +}; + +var isFalsyAttrValue = function (val) { + return val == null || val === false +}; + +/* */ + +function genClassForVnode (vnode) { + var data = vnode.data; + var parentNode = vnode; + var childNode = vnode; + while (isDef(childNode.componentInstance)) { + childNode = childNode.componentInstance._vnode; + if (childNode && childNode.data) { + data = mergeClassData(childNode.data, data); + } + } + while (isDef(parentNode = parentNode.parent)) { + if (parentNode && parentNode.data) { + data = mergeClassData(data, parentNode.data); + } + } + return renderClass(data.staticClass, data.class) +} + +function mergeClassData (child, parent) { + return { + staticClass: concat(child.staticClass, parent.staticClass), + class: isDef(child.class) + ? [child.class, parent.class] + : parent.class + } +} + +function renderClass ( + staticClass, + dynamicClass +) { + if (isDef(staticClass) || isDef(dynamicClass)) { + return concat(staticClass, stringifyClass(dynamicClass)) + } + /* istanbul ignore next */ + return '' +} + +function concat (a, b) { + return a ? b ? (a + ' ' + b) : a : (b || '') +} + +function stringifyClass (value) { + if (Array.isArray(value)) { + return stringifyArray(value) + } + if (isObject(value)) { + return stringifyObject(value) + } + if (typeof value === 'string') { + return value + } + /* istanbul ignore next */ + return '' +} + +function stringifyArray (value) { + var res = ''; + var stringified; + for (var i = 0, l = value.length; i < l; i++) { + if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') { + if (res) { res += ' '; } + res += stringified; + } + } + return res +} + +function stringifyObject (value) { + var res = ''; + for (var key in value) { + if (value[key]) { + if (res) { res += ' '; } + res += key; + } + } + return res +} + +/* */ + +var namespaceMap = { + svg: 'http://www.w3.org/2000/svg', + math: 'http://www.w3.org/1998/Math/MathML' +}; + +var isHTMLTag = makeMap( + 'html,body,base,head,link,meta,style,title,' + + 'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' + + 'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' + + 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' + + 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' + + 'embed,object,param,source,canvas,script,noscript,del,ins,' + + 'caption,col,colgroup,table,thead,tbody,td,th,tr,' + + 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' + + 'output,progress,select,textarea,' + + 'details,dialog,menu,menuitem,summary,' + + 'content,element,shadow,template,blockquote,iframe,tfoot' +); + +// this map is intentionally selective, only covering SVG elements that may +// contain child elements. +var isSVG = makeMap( + 'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' + + 'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' + + 'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view', + true +); + +var isPreTag = function (tag) { return tag === 'pre'; }; + +var isReservedTag = function (tag) { + return isHTMLTag(tag) || isSVG(tag) +}; + +function getTagNamespace (tag) { + if (isSVG(tag)) { + return 'svg' + } + // basic support for MathML + // note it doesn't support other MathML elements being component roots + if (tag === 'math') { + return 'math' + } +} + +var unknownElementCache = Object.create(null); +function isUnknownElement (tag) { + /* istanbul ignore if */ + if (!inBrowser) { + return true + } + if (isReservedTag(tag)) { + return false + } + tag = tag.toLowerCase(); + /* istanbul ignore if */ + if (unknownElementCache[tag] != null) { + return unknownElementCache[tag] + } + var el = document.createElement(tag); + if (tag.indexOf('-') > -1) { + // http://stackoverflow.com/a/28210364/1070244 + return (unknownElementCache[tag] = ( + el.constructor === window.HTMLUnknownElement || + el.constructor === window.HTMLElement + )) + } else { + return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString())) + } +} + +var isTextInputType = makeMap('text,number,password,search,email,tel,url'); + +/* */ + +/** + * Query an element selector if it's not an element already. + */ +function query (el) { + if (typeof el === 'string') { + var selected = document.querySelector(el); + if (!selected) { + "development" !== 'production' && warn( + 'Cannot find element: ' + el + ); + return document.createElement('div') + } + return selected + } else { + return el + } +} + +/* */ + +function createElement$1 (tagName, vnode) { + var elm = document.createElement(tagName); + if (tagName !== 'select') { + return elm + } + // false or null will remove the attribute but undefined will not + if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) { + elm.setAttribute('multiple', 'multiple'); + } + return elm +} + +function createElementNS (namespace, tagName) { + return document.createElementNS(namespaceMap[namespace], tagName) +} + +function createTextNode (text) { + return document.createTextNode(text) +} + +function createComment (text) { + return document.createComment(text) +} + +function insertBefore (parentNode, newNode, referenceNode) { + parentNode.insertBefore(newNode, referenceNode); +} + +function removeChild (node, child) { + node.removeChild(child); +} + +function appendChild (node, child) { + node.appendChild(child); +} + +function parentNode (node) { + return node.parentNode +} + +function nextSibling (node) { + return node.nextSibling +} + +function tagName (node) { + return node.tagName +} + +function setTextContent (node, text) { + node.textContent = text; +} + +function setStyleScope (node, scopeId) { + node.setAttribute(scopeId, ''); +} + + +var nodeOps = Object.freeze({ + createElement: createElement$1, + createElementNS: createElementNS, + createTextNode: createTextNode, + createComment: createComment, + insertBefore: insertBefore, + removeChild: removeChild, + appendChild: appendChild, + parentNode: parentNode, + nextSibling: nextSibling, + tagName: tagName, + setTextContent: setTextContent, + setStyleScope: setStyleScope +}); + +/* */ + +var ref = { + create: function create (_, vnode) { + registerRef(vnode); + }, + update: function update (oldVnode, vnode) { + if (oldVnode.data.ref !== vnode.data.ref) { + registerRef(oldVnode, true); + registerRef(vnode); + } + }, + destroy: function destroy (vnode) { + registerRef(vnode, true); + } +} + +function registerRef (vnode, isRemoval) { + var key = vnode.data.ref; + if (!isDef(key)) { return } + + var vm = vnode.context; + var ref = vnode.componentInstance || vnode.elm; + var refs = vm.$refs; + if (isRemoval) { + if (Array.isArray(refs[key])) { + remove(refs[key], ref); + } else if (refs[key] === ref) { + refs[key] = undefined; + } + } else { + if (vnode.data.refInFor) { + if (!Array.isArray(refs[key])) { + refs[key] = [ref]; + } else if (refs[key].indexOf(ref) < 0) { + // $flow-disable-line + refs[key].push(ref); + } + } else { + refs[key] = ref; + } + } +} + +/** + * Virtual DOM patching algorithm based on Snabbdom by + * Simon Friis Vindum (@paldepind) + * Licensed under the MIT License + * https://github.com/paldepind/snabbdom/blob/master/LICENSE + * + * modified by Evan You (@yyx990803) + * + * Not type-checking this because this file is perf-critical and the cost + * of making flow understand it is not worth it. + */ + +var emptyNode = new VNode('', {}, []); + +var hooks = ['create', 'activate', 'update', 'remove', 'destroy']; + +function sameVnode (a, b) { + return ( + a.key === b.key && ( + ( + a.tag === b.tag && + a.isComment === b.isComment && + isDef(a.data) === isDef(b.data) && + sameInputType(a, b) + ) || ( + isTrue(a.isAsyncPlaceholder) && + a.asyncFactory === b.asyncFactory && + isUndef(b.asyncFactory.error) + ) + ) + ) +} + +function sameInputType (a, b) { + if (a.tag !== 'input') { return true } + var i; + var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type; + var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type; + return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB) +} + +function createKeyToOldIdx (children, beginIdx, endIdx) { + var i, key; + var map = {}; + for (i = beginIdx; i <= endIdx; ++i) { + key = children[i].key; + if (isDef(key)) { map[key] = i; } + } + return map +} + +function createPatchFunction (backend) { + var i, j; + var cbs = {}; + + var modules = backend.modules; + var nodeOps = backend.nodeOps; + + for (i = 0; i < hooks.length; ++i) { + cbs[hooks[i]] = []; + for (j = 0; j < modules.length; ++j) { + if (isDef(modules[j][hooks[i]])) { + cbs[hooks[i]].push(modules[j][hooks[i]]); + } + } + } + + function emptyNodeAt (elm) { + return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm) + } + + function createRmCb (childElm, listeners) { + function remove () { + if (--remove.listeners === 0) { + removeNode(childElm); + } + } + remove.listeners = listeners; + return remove + } + + function removeNode (el) { + var parent = nodeOps.parentNode(el); + // element may have already been removed due to v-html / v-text + if (isDef(parent)) { + nodeOps.removeChild(parent, el); + } + } + + function isUnknownElement$$1 (vnode, inVPre) { + return ( + !inVPre && + !vnode.ns && + !( + config.ignoredElements.length && + config.ignoredElements.some(function (ignore) { + return isRegExp(ignore) + ? ignore.test(vnode.tag) + : ignore === vnode.tag + }) + ) && + config.isUnknownElement(vnode.tag) + ) + } + + var creatingElmInVPre = 0; + + function createElm ( + vnode, + insertedVnodeQueue, + parentElm, + refElm, + nested, + ownerArray, + index + ) { + if (isDef(vnode.elm) && isDef(ownerArray)) { + // This vnode was used in a previous render! + // now it's used as a new node, overwriting its elm would cause + // potential patch errors down the road when it's used as an insertion + // reference node. Instead, we clone the node on-demand before creating + // associated DOM element for it. + vnode = ownerArray[index] = cloneVNode(vnode); + } + + vnode.isRootInsert = !nested; // for transition enter check + if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) { + return + } + + var data = vnode.data; + var children = vnode.children; + var tag = vnode.tag; + if (isDef(tag)) { + { + if (data && data.pre) { + creatingElmInVPre++; + } + if (isUnknownElement$$1(vnode, creatingElmInVPre)) { + warn( + 'Unknown custom element: <' + tag + '> - did you ' + + 'register the component correctly? For recursive components, ' + + 'make sure to provide the "name" option.', + vnode.context + ); + } + } + + vnode.elm = vnode.ns + ? nodeOps.createElementNS(vnode.ns, tag) + : nodeOps.createElement(tag, vnode); + setScope(vnode); + + /* istanbul ignore if */ + { + createChildren(vnode, children, insertedVnodeQueue); + if (isDef(data)) { + invokeCreateHooks(vnode, insertedVnodeQueue); + } + insert(parentElm, vnode.elm, refElm); + } + + if ("development" !== 'production' && data && data.pre) { + creatingElmInVPre--; + } + } else if (isTrue(vnode.isComment)) { + vnode.elm = nodeOps.createComment(vnode.text); + insert(parentElm, vnode.elm, refElm); + } else { + vnode.elm = nodeOps.createTextNode(vnode.text); + insert(parentElm, vnode.elm, refElm); + } + } + + function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) { + var i = vnode.data; + if (isDef(i)) { + var isReactivated = isDef(vnode.componentInstance) && i.keepAlive; + if (isDef(i = i.hook) && isDef(i = i.init)) { + i(vnode, false /* hydrating */, parentElm, refElm); + } + // after calling the init hook, if the vnode is a child component + // it should've created a child instance and mounted it. the child + // component also has set the placeholder vnode's elm. + // in that case we can just return the element and be done. + if (isDef(vnode.componentInstance)) { + initComponent(vnode, insertedVnodeQueue); + if (isTrue(isReactivated)) { + reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm); + } + return true + } + } + } + + function initComponent (vnode, insertedVnodeQueue) { + if (isDef(vnode.data.pendingInsert)) { + insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert); + vnode.data.pendingInsert = null; + } + vnode.elm = vnode.componentInstance.$el; + if (isPatchable(vnode)) { + invokeCreateHooks(vnode, insertedVnodeQueue); + setScope(vnode); + } else { + // empty component root. + // skip all element-related modules except for ref (#3455) + registerRef(vnode); + // make sure to invoke the insert hook + insertedVnodeQueue.push(vnode); + } + } + + function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) { + var i; + // hack for #4339: a reactivated component with inner transition + // does not trigger because the inner node's created hooks are not called + // again. It's not ideal to involve module-specific logic in here but + // there doesn't seem to be a better way to do it. + var innerNode = vnode; + while (innerNode.componentInstance) { + innerNode = innerNode.componentInstance._vnode; + if (isDef(i = innerNode.data) && isDef(i = i.transition)) { + for (i = 0; i < cbs.activate.length; ++i) { + cbs.activate[i](emptyNode, innerNode); + } + insertedVnodeQueue.push(innerNode); + break + } + } + // unlike a newly created component, + // a reactivated keep-alive component doesn't insert itself + insert(parentElm, vnode.elm, refElm); + } + + function insert (parent, elm, ref$$1) { + if (isDef(parent)) { + if (isDef(ref$$1)) { + if (ref$$1.parentNode === parent) { + nodeOps.insertBefore(parent, elm, ref$$1); + } + } else { + nodeOps.appendChild(parent, elm); + } + } + } + + function createChildren (vnode, children, insertedVnodeQueue) { + if (Array.isArray(children)) { + { + checkDuplicateKeys(children); + } + for (var i = 0; i < children.length; ++i) { + createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i); + } + } else if (isPrimitive(vnode.text)) { + nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text))); + } + } + + function isPatchable (vnode) { + while (vnode.componentInstance) { + vnode = vnode.componentInstance._vnode; + } + return isDef(vnode.tag) + } + + function invokeCreateHooks (vnode, insertedVnodeQueue) { + for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) { + cbs.create[i$1](emptyNode, vnode); + } + i = vnode.data.hook; // Reuse variable + if (isDef(i)) { + if (isDef(i.create)) { i.create(emptyNode, vnode); } + if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); } + } + } + + // set scope id attribute for scoped CSS. + // this is implemented as a special case to avoid the overhead + // of going through the normal attribute patching process. + function setScope (vnode) { + var i; + if (isDef(i = vnode.fnScopeId)) { + nodeOps.setStyleScope(vnode.elm, i); + } else { + var ancestor = vnode; + while (ancestor) { + if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) { + nodeOps.setStyleScope(vnode.elm, i); + } + ancestor = ancestor.parent; + } + } + // for slot content they should also get the scopeId from the host instance. + if (isDef(i = activeInstance) && + i !== vnode.context && + i !== vnode.fnContext && + isDef(i = i.$options._scopeId) + ) { + nodeOps.setStyleScope(vnode.elm, i); + } + } + + function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) { + for (; startIdx <= endIdx; ++startIdx) { + createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx); + } + } + + function invokeDestroyHook (vnode) { + var i, j; + var data = vnode.data; + if (isDef(data)) { + if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); } + for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); } + } + if (isDef(i = vnode.children)) { + for (j = 0; j < vnode.children.length; ++j) { + invokeDestroyHook(vnode.children[j]); + } + } + } + + function removeVnodes (parentElm, vnodes, startIdx, endIdx) { + for (; startIdx <= endIdx; ++startIdx) { + var ch = vnodes[startIdx]; + if (isDef(ch)) { + if (isDef(ch.tag)) { + removeAndInvokeRemoveHook(ch); + invokeDestroyHook(ch); + } else { // Text node + removeNode(ch.elm); + } + } + } + } + + function removeAndInvokeRemoveHook (vnode, rm) { + if (isDef(rm) || isDef(vnode.data)) { + var i; + var listeners = cbs.remove.length + 1; + if (isDef(rm)) { + // we have a recursively passed down rm callback + // increase the listeners count + rm.listeners += listeners; + } else { + // directly removing + rm = createRmCb(vnode.elm, listeners); + } + // recursively invoke hooks on child component root node + if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) { + removeAndInvokeRemoveHook(i, rm); + } + for (i = 0; i < cbs.remove.length; ++i) { + cbs.remove[i](vnode, rm); + } + if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) { + i(vnode, rm); + } else { + rm(); + } + } else { + removeNode(vnode.elm); + } + } + + function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) { + var oldStartIdx = 0; + var newStartIdx = 0; + var oldEndIdx = oldCh.length - 1; + var oldStartVnode = oldCh[0]; + var oldEndVnode = oldCh[oldEndIdx]; + var newEndIdx = newCh.length - 1; + var newStartVnode = newCh[0]; + var newEndVnode = newCh[newEndIdx]; + var oldKeyToIdx, idxInOld, vnodeToMove, refElm; + + // removeOnly is a special flag used only by <transition-group> + // to ensure removed elements stay in correct relative positions + // during leaving transitions + var canMove = !removeOnly; + + { + checkDuplicateKeys(newCh); + } + + while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) { + if (isUndef(oldStartVnode)) { + oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left + } else if (isUndef(oldEndVnode)) { + oldEndVnode = oldCh[--oldEndIdx]; + } else if (sameVnode(oldStartVnode, newStartVnode)) { + patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue); + oldStartVnode = oldCh[++oldStartIdx]; + newStartVnode = newCh[++newStartIdx]; + } else if (sameVnode(oldEndVnode, newEndVnode)) { + patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue); + oldEndVnode = oldCh[--oldEndIdx]; + newEndVnode = newCh[--newEndIdx]; + } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right + patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue); + canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm)); + oldStartVnode = oldCh[++oldStartIdx]; + newEndVnode = newCh[--newEndIdx]; + } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left + patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue); + canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm); + oldEndVnode = oldCh[--oldEndIdx]; + newStartVnode = newCh[++newStartIdx]; + } else { + if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); } + idxInOld = isDef(newStartVnode.key) + ? oldKeyToIdx[newStartVnode.key] + : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx); + if (isUndef(idxInOld)) { // New element + createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx); + } else { + vnodeToMove = oldCh[idxInOld]; + if (sameVnode(vnodeToMove, newStartVnode)) { + patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue); + oldCh[idxInOld] = undefined; + canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm); + } else { + // same key but different element. treat as new element + createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx); + } + } + newStartVnode = newCh[++newStartIdx]; + } + } + if (oldStartIdx > oldEndIdx) { + refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm; + addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue); + } else if (newStartIdx > newEndIdx) { + removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx); + } + } + + function checkDuplicateKeys (children) { + var seenKeys = {}; + for (var i = 0; i < children.length; i++) { + var vnode = children[i]; + var key = vnode.key; + if (isDef(key)) { + if (seenKeys[key]) { + warn( + ("Duplicate keys detected: '" + key + "'. This may cause an update error."), + vnode.context + ); + } else { + seenKeys[key] = true; + } + } + } + } + + function findIdxInOld (node, oldCh, start, end) { + for (var i = start; i < end; i++) { + var c = oldCh[i]; + if (isDef(c) && sameVnode(node, c)) { return i } + } + } + + function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) { + if (oldVnode === vnode) { + return + } + + var elm = vnode.elm = oldVnode.elm; + + if (isTrue(oldVnode.isAsyncPlaceholder)) { + if (isDef(vnode.asyncFactory.resolved)) { + hydrate(oldVnode.elm, vnode, insertedVnodeQueue); + } else { + vnode.isAsyncPlaceholder = true; + } + return + } + + // reuse element for static trees. + // note we only do this if the vnode is cloned - + // if the new node is not cloned it means the render functions have been + // reset by the hot-reload-api and we need to do a proper re-render. + if (isTrue(vnode.isStatic) && + isTrue(oldVnode.isStatic) && + vnode.key === oldVnode.key && + (isTrue(vnode.isCloned) || isTrue(vnode.isOnce)) + ) { + vnode.componentInstance = oldVnode.componentInstance; + return + } + + var i; + var data = vnode.data; + if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) { + i(oldVnode, vnode); + } + + var oldCh = oldVnode.children; + var ch = vnode.children; + if (isDef(data) && isPatchable(vnode)) { + for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); } + if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); } + } + if (isUndef(vnode.text)) { + if (isDef(oldCh) && isDef(ch)) { + if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); } + } else if (isDef(ch)) { + if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); } + addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue); + } else if (isDef(oldCh)) { + removeVnodes(elm, oldCh, 0, oldCh.length - 1); + } else if (isDef(oldVnode.text)) { + nodeOps.setTextContent(elm, ''); + } + } else if (oldVnode.text !== vnode.text) { + nodeOps.setTextContent(elm, vnode.text); + } + if (isDef(data)) { + if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); } + } + } + + function invokeInsertHook (vnode, queue, initial) { + // delay insert hooks for component root nodes, invoke them after the + // element is really inserted + if (isTrue(initial) && isDef(vnode.parent)) { + vnode.parent.data.pendingInsert = queue; + } else { + for (var i = 0; i < queue.length; ++i) { + queue[i].data.hook.insert(queue[i]); + } + } + } + + var hydrationBailed = false; + // list of modules that can skip create hook during hydration because they + // are already rendered on the client or has no need for initialization + // Note: style is excluded because it relies on initial clone for future + // deep updates (#7063). + var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key'); + + // Note: this is a browser-only function so we can assume elms are DOM nodes. + function hydrate (elm, vnode, insertedVnodeQueue, inVPre) { + var i; + var tag = vnode.tag; + var data = vnode.data; + var children = vnode.children; + inVPre = inVPre || (data && data.pre); + vnode.elm = elm; + + if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) { + vnode.isAsyncPlaceholder = true; + return true + } + // assert node match + { + if (!assertNodeMatch(elm, vnode, inVPre)) { + return false + } + } + if (isDef(data)) { + if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); } + if (isDef(i = vnode.componentInstance)) { + // child component. it should have hydrated its own tree. + initComponent(vnode, insertedVnodeQueue); + return true + } + } + if (isDef(tag)) { + if (isDef(children)) { + // empty element, allow client to pick up and populate children + if (!elm.hasChildNodes()) { + createChildren(vnode, children, insertedVnodeQueue); + } else { + // v-html and domProps: innerHTML + if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) { + if (i !== elm.innerHTML) { + /* istanbul ignore if */ + if ("development" !== 'production' && + typeof console !== 'undefined' && + !hydrationBailed + ) { + hydrationBailed = true; + console.warn('Parent: ', elm); + console.warn('server innerHTML: ', i); + console.warn('client innerHTML: ', elm.innerHTML); + } + return false + } + } else { + // iterate and compare children lists + var childrenMatch = true; + var childNode = elm.firstChild; + for (var i$1 = 0; i$1 < children.length; i$1++) { + if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) { + childrenMatch = false; + break + } + childNode = childNode.nextSibling; + } + // if childNode is not null, it means the actual childNodes list is + // longer than the virtual children list. + if (!childrenMatch || childNode) { + /* istanbul ignore if */ + if ("development" !== 'production' && + typeof console !== 'undefined' && + !hydrationBailed + ) { + hydrationBailed = true; + console.warn('Parent: ', elm); + console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children); + } + return false + } + } + } + } + if (isDef(data)) { + var fullInvoke = false; + for (var key in data) { + if (!isRenderedModule(key)) { + fullInvoke = true; + invokeCreateHooks(vnode, insertedVnodeQueue); + break + } + } + if (!fullInvoke && data['class']) { + // ensure collecting deps for deep class bindings for future updates + traverse(data['class']); + } + } + } else if (elm.data !== vnode.text) { + elm.data = vnode.text; + } + return true + } + + function assertNodeMatch (node, vnode, inVPre) { + if (isDef(vnode.tag)) { + return vnode.tag.indexOf('vue-component') === 0 || ( + !isUnknownElement$$1(vnode, inVPre) && + vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase()) + ) + } else { + return node.nodeType === (vnode.isComment ? 8 : 3) + } + } + + return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) { + if (isUndef(vnode)) { + if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); } + return + } + + var isInitialPatch = false; + var insertedVnodeQueue = []; + + if (isUndef(oldVnode)) { + // empty mount (likely as component), create new root element + isInitialPatch = true; + createElm(vnode, insertedVnodeQueue, parentElm, refElm); + } else { + var isRealElement = isDef(oldVnode.nodeType); + if (!isRealElement && sameVnode(oldVnode, vnode)) { + // patch existing root node + patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly); + } else { + if (isRealElement) { + // mounting to a real element + // check if this is server-rendered content and if we can perform + // a successful hydration. + if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) { + oldVnode.removeAttribute(SSR_ATTR); + hydrating = true; + } + if (isTrue(hydrating)) { + if (hydrate(oldVnode, vnode, insertedVnodeQueue)) { + invokeInsertHook(vnode, insertedVnodeQueue, true); + return oldVnode + } else { + warn( + 'The client-side rendered virtual DOM tree is not matching ' + + 'server-rendered content. This is likely caused by incorrect ' + + 'HTML markup, for example nesting block-level elements inside ' + + '<p>, or missing <tbody>. Bailing hydration and performing ' + + 'full client-side render.' + ); + } + } + // either not server-rendered, or hydration failed. + // create an empty node and replace it + oldVnode = emptyNodeAt(oldVnode); + } + + // replacing existing element + var oldElm = oldVnode.elm; + var parentElm$1 = nodeOps.parentNode(oldElm); + + // create new node + createElm( + vnode, + insertedVnodeQueue, + // extremely rare edge case: do not insert if old element is in a + // leaving transition. Only happens when combining transition + + // keep-alive + HOCs. (#4590) + oldElm._leaveCb ? null : parentElm$1, + nodeOps.nextSibling(oldElm) + ); + + // update parent placeholder node element, recursively + if (isDef(vnode.parent)) { + var ancestor = vnode.parent; + var patchable = isPatchable(vnode); + while (ancestor) { + for (var i = 0; i < cbs.destroy.length; ++i) { + cbs.destroy[i](ancestor); + } + ancestor.elm = vnode.elm; + if (patchable) { + for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) { + cbs.create[i$1](emptyNode, ancestor); + } + // #6513 + // invoke insert hooks that may have been merged by create hooks. + // e.g. for directives that uses the "inserted" hook. + var insert = ancestor.data.hook.insert; + if (insert.merged) { + // start at index 1 to avoid re-invoking component mounted hook + for (var i$2 = 1; i$2 < insert.fns.length; i$2++) { + insert.fns[i$2](); + } + } + } else { + registerRef(ancestor); + } + ancestor = ancestor.parent; + } + } + + // destroy old node + if (isDef(parentElm$1)) { + removeVnodes(parentElm$1, [oldVnode], 0, 0); + } else if (isDef(oldVnode.tag)) { + invokeDestroyHook(oldVnode); + } + } + } + + invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch); + return vnode.elm + } +} + +/* */ + +var directives = { + create: updateDirectives, + update: updateDirectives, + destroy: function unbindDirectives (vnode) { + updateDirectives(vnode, emptyNode); + } +} + +function updateDirectives (oldVnode, vnode) { + if (oldVnode.data.directives || vnode.data.directives) { + _update(oldVnode, vnode); + } +} + +function _update (oldVnode, vnode) { + var isCreate = oldVnode === emptyNode; + var isDestroy = vnode === emptyNode; + var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context); + var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context); + + var dirsWithInsert = []; + var dirsWithPostpatch = []; + + var key, oldDir, dir; + for (key in newDirs) { + oldDir = oldDirs[key]; + dir = newDirs[key]; + if (!oldDir) { + // new directive, bind + callHook$1(dir, 'bind', vnode, oldVnode); + if (dir.def && dir.def.inserted) { + dirsWithInsert.push(dir); + } + } else { + // existing directive, update + dir.oldValue = oldDir.value; + callHook$1(dir, 'update', vnode, oldVnode); + if (dir.def && dir.def.componentUpdated) { + dirsWithPostpatch.push(dir); + } + } + } + + if (dirsWithInsert.length) { + var callInsert = function () { + for (var i = 0; i < dirsWithInsert.length; i++) { + callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode); + } + }; + if (isCreate) { + mergeVNodeHook(vnode, 'insert', callInsert); + } else { + callInsert(); + } + } + + if (dirsWithPostpatch.length) { + mergeVNodeHook(vnode, 'postpatch', function () { + for (var i = 0; i < dirsWithPostpatch.length; i++) { + callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode); + } + }); + } + + if (!isCreate) { + for (key in oldDirs) { + if (!newDirs[key]) { + // no longer present, unbind + callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy); + } + } + } +} + +var emptyModifiers = Object.create(null); + +function normalizeDirectives$1 ( + dirs, + vm +) { + var res = Object.create(null); + if (!dirs) { + // $flow-disable-line + return res + } + var i, dir; + for (i = 0; i < dirs.length; i++) { + dir = dirs[i]; + if (!dir.modifiers) { + // $flow-disable-line + dir.modifiers = emptyModifiers; + } + res[getRawDirName(dir)] = dir; + dir.def = resolveAsset(vm.$options, 'directives', dir.name, true); + } + // $flow-disable-line + return res +} + +function getRawDirName (dir) { + return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.'))) +} + +function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) { + var fn = dir.def && dir.def[hook]; + if (fn) { + try { + fn(vnode.elm, dir, vnode, oldVnode, isDestroy); + } catch (e) { + handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook")); + } + } +} + +var baseModules = [ + ref, + directives +] + +/* */ + +function updateAttrs (oldVnode, vnode) { + var opts = vnode.componentOptions; + if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) { + return + } + if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) { + return + } + var key, cur, old; + var elm = vnode.elm; + var oldAttrs = oldVnode.data.attrs || {}; + var attrs = vnode.data.attrs || {}; + // clone observed objects, as the user probably wants to mutate it + if (isDef(attrs.__ob__)) { + attrs = vnode.data.attrs = extend({}, attrs); + } + + for (key in attrs) { + cur = attrs[key]; + old = oldAttrs[key]; + if (old !== cur) { + setAttr(elm, key, cur); + } + } + // #4391: in IE9, setting type can reset value for input[type=radio] + // #6666: IE/Edge forces progress value down to 1 before setting a max + /* istanbul ignore if */ + if ((isIE || isEdge) && attrs.value !== oldAttrs.value) { + setAttr(elm, 'value', attrs.value); + } + for (key in oldAttrs) { + if (isUndef(attrs[key])) { + if (isXlink(key)) { + elm.removeAttributeNS(xlinkNS, getXlinkProp(key)); + } else if (!isEnumeratedAttr(key)) { + elm.removeAttribute(key); + } + } + } +} + +function setAttr (el, key, value) { + if (el.tagName.indexOf('-') > -1) { + baseSetAttr(el, key, value); + } else if (isBooleanAttr(key)) { + // set attribute for blank value + // e.g. <option disabled>Select one</option> + if (isFalsyAttrValue(value)) { + el.removeAttribute(key); + } else { + // technically allowfullscreen is a boolean attribute for <iframe>, + // but Flash expects a value of "true" when used on <embed> tag + value = key === 'allowfullscreen' && el.tagName === 'EMBED' + ? 'true' + : key; + el.setAttribute(key, value); + } + } else if (isEnumeratedAttr(key)) { + el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true'); + } else if (isXlink(key)) { + if (isFalsyAttrValue(value)) { + el.removeAttributeNS(xlinkNS, getXlinkProp(key)); + } else { + el.setAttributeNS(xlinkNS, key, value); + } + } else { + baseSetAttr(el, key, value); + } +} + +function baseSetAttr (el, key, value) { + if (isFalsyAttrValue(value)) { + el.removeAttribute(key); + } else { + // #7138: IE10 & 11 fires input event when setting placeholder on + // <textarea>... block the first input event and remove the blocker + // immediately. + /* istanbul ignore if */ + if ( + isIE && !isIE9 && + el.tagName === 'TEXTAREA' && + key === 'placeholder' && !el.__ieph + ) { + var blocker = function (e) { + e.stopImmediatePropagation(); + el.removeEventListener('input', blocker); + }; + el.addEventListener('input', blocker); + // $flow-disable-line + el.__ieph = true; /* IE placeholder patched */ + } + el.setAttribute(key, value); + } +} + +var attrs = { + create: updateAttrs, + update: updateAttrs +} + +/* */ + +function updateClass (oldVnode, vnode) { + var el = vnode.elm; + var data = vnode.data; + var oldData = oldVnode.data; + if ( + isUndef(data.staticClass) && + isUndef(data.class) && ( + isUndef(oldData) || ( + isUndef(oldData.staticClass) && + isUndef(oldData.class) + ) + ) + ) { + return + } + + var cls = genClassForVnode(vnode); + + // handle transition classes + var transitionClass = el._transitionClasses; + if (isDef(transitionClass)) { + cls = concat(cls, stringifyClass(transitionClass)); + } + + // set the class + if (cls !== el._prevClass) { + el.setAttribute('class', cls); + el._prevClass = cls; + } +} + +var klass = { + create: updateClass, + update: updateClass +} + +/* */ + +var validDivisionCharRE = /[\w).+\-_$\]]/; + +function parseFilters (exp) { + var inSingle = false; + var inDouble = false; + var inTemplateString = false; + var inRegex = false; + var curly = 0; + var square = 0; + var paren = 0; + var lastFilterIndex = 0; + var c, prev, i, expression, filters; + + for (i = 0; i < exp.length; i++) { + prev = c; + c = exp.charCodeAt(i); + if (inSingle) { + if (c === 0x27 && prev !== 0x5C) { inSingle = false; } + } else if (inDouble) { + if (c === 0x22 && prev !== 0x5C) { inDouble = false; } + } else if (inTemplateString) { + if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; } + } else if (inRegex) { + if (c === 0x2f && prev !== 0x5C) { inRegex = false; } + } else if ( + c === 0x7C && // pipe + exp.charCodeAt(i + 1) !== 0x7C && + exp.charCodeAt(i - 1) !== 0x7C && + !curly && !square && !paren + ) { + if (expression === undefined) { + // first filter, end of expression + lastFilterIndex = i + 1; + expression = exp.slice(0, i).trim(); + } else { + pushFilter(); + } + } else { + switch (c) { + case 0x22: inDouble = true; break // " + case 0x27: inSingle = true; break // ' + case 0x60: inTemplateString = true; break // ` + case 0x28: paren++; break // ( + case 0x29: paren--; break // ) + case 0x5B: square++; break // [ + case 0x5D: square--; break // ] + case 0x7B: curly++; break // { + case 0x7D: curly--; break // } + } + if (c === 0x2f) { // / + var j = i - 1; + var p = (void 0); + // find first non-whitespace prev char + for (; j >= 0; j--) { + p = exp.charAt(j); + if (p !== ' ') { break } + } + if (!p || !validDivisionCharRE.test(p)) { + inRegex = true; + } + } + } + } + + if (expression === undefined) { + expression = exp.slice(0, i).trim(); + } else if (lastFilterIndex !== 0) { + pushFilter(); + } + + function pushFilter () { + (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim()); + lastFilterIndex = i + 1; + } + + if (filters) { + for (i = 0; i < filters.length; i++) { + expression = wrapFilter(expression, filters[i]); + } + } + + return expression +} + +function wrapFilter (exp, filter) { + var i = filter.indexOf('('); + if (i < 0) { + // _f: resolveFilter + return ("_f(\"" + filter + "\")(" + exp + ")") + } else { + var name = filter.slice(0, i); + var args = filter.slice(i + 1); + return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args)) + } +} + +/* */ + +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 }); + el.plain = false; +} + +function addAttr (el, name, value) { + (el.attrs || (el.attrs = [])).push({ name: name, value: value }); + el.plain = false; +} + +// add a raw attr (use this in preTransforms) +function addRawAttr (el, name, value) { + el.attrsMap[name] = value; + el.attrsList.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 }); + el.plain = false; +} + +function addHandler ( + el, + name, + value, + modifiers, + important, + warn +) { + modifiers = modifiers || emptyObject; + // warn prevent and passive modifier + /* istanbul ignore if */ + if ( + "development" !== 'production' && warn && + 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.capture) { + delete modifiers.capture; + name = '!' + name; // mark the event as captured + } + if (modifiers.once) { + delete modifiers.once; + name = '~' + name; // mark the event as once + } + /* istanbul ignore if */ + if (modifiers.passive) { + delete modifiers.passive; + name = '&' + name; // mark the event as passive + } + + // normalize click.right and click.middle since they don't actually fire + // this is technically browser-specific, but at least for now browsers are + // the only target envs that have right/middle clicks. + if (name === 'click') { + if (modifiers.right) { + name = 'contextmenu'; + delete modifiers.right; + } else if (modifiers.middle) { + name = 'mouseup'; + } + } + + var events; + if (modifiers.native) { + delete modifiers.native; + events = el.nativeEvents || (el.nativeEvents = {}); + } else { + events = el.events || (el.events = {}); + } + + var newHandler = { + value: value.trim() + }; + if (modifiers !== emptyObject) { + newHandler.modifiers = modifiers; + } + + var handlers = events[name]; + /* istanbul ignore if */ + if (Array.isArray(handlers)) { + important ? handlers.unshift(newHandler) : handlers.push(newHandler); + } else if (handlers) { + events[name] = important ? [newHandler, handlers] : [handlers, newHandler]; + } else { + events[name] = newHandler; + } + + el.plain = false; +} + +function getBindingAttr ( + el, + name, + getStatic +) { + var dynamicValue = + getAndRemoveAttr(el, ':' + name) || + getAndRemoveAttr(el, 'v-bind:' + name); + if (dynamicValue != null) { + return parseFilters(dynamicValue) + } else if (getStatic !== false) { + var staticValue = getAndRemoveAttr(el, name); + if (staticValue != null) { + return JSON.stringify(staticValue) + } + } +} + +// note: this only removes the attr from the Array (attrsList) so that it +// doesn't get processed by processAttrs. +// By default it does NOT remove it from the map (attrsMap) because the map is +// needed during codegen. +function getAndRemoveAttr ( + el, + name, + removeFromMap +) { + var val; + if ((val = el.attrsMap[name]) != null) { + var list = el.attrsList; + for (var i = 0, l = list.length; i < l; i++) { + if (list[i].name === name) { + list.splice(i, 1); + break + } + } + } + if (removeFromMap) { + delete el.attrsMap[name]; + } + return val +} + +/* */ + +/** + * 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 res = parseModel(value); + if (res.key === null) { + return (value + "=" + assignment) + } else { + return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")") + } +} + +/** + * Parse a v-model expression into a base path and a final key segment. + * Handles both dot-path and possible square brackets. + * + * Possible cases: + * + * - test + * - test[key] + * - test[test1[key]] + * - test["a"][key] + * - xxx.test[a[a].test1[key]] + * - test.xxx.a["asa"][test1[key]] + * + */ + +var len; +var str; +var chr; +var index$1; +var expressionPos; +var expressionEndPos; + + + +function parseModel (val) { + // Fix https://github.com/vuejs/vue/pull/7730 + // allow v-model="obj.val " (trailing whitespace) + val = val.trim(); + len = val.length; + + if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) { + index$1 = val.lastIndexOf('.'); + if (index$1 > -1) { + return { + exp: val.slice(0, index$1), + key: '"' + val.slice(index$1 + 1) + '"' + } + } else { + return { + exp: val, + key: null + } + } + } + + str = val; + index$1 = expressionPos = expressionEndPos = 0; + + while (!eof()) { + chr = next(); + /* istanbul ignore if */ + if (isStringStart(chr)) { + parseString(chr); + } else if (chr === 0x5B) { + parseBracket(chr); + } + } + + return { + exp: val.slice(0, expressionPos), + key: val.slice(expressionPos + 1, expressionEndPos) + } +} + +function next () { + return str.charCodeAt(++index$1) +} + +function eof () { + return index$1 >= len +} + +function isStringStart (chr) { + return chr === 0x22 || chr === 0x27 +} + +function parseBracket (chr) { + var inBracket = 1; + expressionPos = index$1; + while (!eof()) { + chr = next(); + if (isStringStart(chr)) { + parseString(chr); + continue + } + if (chr === 0x5B) { inBracket++; } + if (chr === 0x5D) { inBracket--; } + if (inBracket === 0) { + expressionEndPos = index$1; + break + } + } +} + +function parseString (chr) { + var stringQuote = chr; + while (!eof()) { + chr = next(); + if (chr === stringQuote) { + break + } + } +} + +/* */ + +var warn$1; + +// in some cases, the event used has to be determined at runtime +// so we used some reserved tokens during compile. +var RANGE_TOKEN = '__r'; +var CHECKBOX_RADIO_TOKEN = '__c'; + +function model ( + el, + dir, + _warn +) { + warn$1 = _warn; + var value = dir.value; + var modifiers = dir.modifiers; + var tag = el.tag; + var type = el.attrsMap.type; + + { + // inputs with type="file" are read only and setting the input's + // value will throw an error. + if (tag === 'input' && type === 'file') { + warn$1( + "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" + + "File inputs are read only. Use a v-on:change listener instead." + ); + } + } + + 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, 'change', + "var $$a=" + value + "," + + '$$el=$event.target,' + + "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" + + 'if(Array.isArray($$a)){' + + "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," + + '$$i=_i($$a,$$v);' + + "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" + + "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" + + "}else{" + (genAssignmentCode(value, '$$c')) + "}", + null, true + ); +} + +function genRadioModel ( + el, + value, + modifiers +) { + var number = modifiers && modifiers.number; + var valueBinding = getBindingAttr(el, 'value') || 'null'; + valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding; + addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")")); + addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true); +} + +function genSelect ( + el, + value, + modifiers +) { + var number = modifiers && modifiers.number; + var selectedVal = "Array.prototype.filter" + + ".call($event.target.options,function(o){return o.selected})" + + ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" + + "return " + (number ? '_n(val)' : 'val') + "})"; + + var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]'; + var code = "var $$selectedVal = " + selectedVal + ";"; + code = code + " " + (genAssignmentCode(value, assignment)); + addHandler(el, 'change', code, null, true); +} + +function genDefaultModel ( + el, + value, + modifiers +) { + var type = el.attrsMap.type; + + // warn if v-bind:value conflicts with v-model + // except for inputs with v-bind:type + { + var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value']; + var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type']; + if (value$1 && !typeBinding) { + var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value'; + warn$1( + binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " + + 'because the latter already expands to a value binding internally' + ); + } + } + + var ref = modifiers || {}; + var lazy = ref.lazy; + var number = ref.number; + var trim = ref.trim; + var needCompositionGuard = !lazy && type !== 'range'; + var event = lazy + ? 'change' + : type === 'range' + ? RANGE_TOKEN + : 'input'; + + var valueExpression = '$event.target.value'; + if (trim) { + valueExpression = "$event.target.value.trim()"; + } + if (number) { + valueExpression = "_n(" + valueExpression + ")"; + } + + var code = genAssignmentCode(value, valueExpression); + if (needCompositionGuard) { + code = "if($event.target.composing)return;" + code; + } + + addProp(el, 'value', ("(" + value + ")")); + addHandler(el, event, code, null, true); + if (trim || number) { + addHandler(el, 'blur', '$forceUpdate()'); + } +} + +/* */ + +// normalize v-model event tokens that can only be determined at runtime. +// it's important to place the event as the first in the array because +// the whole point is ensuring the v-model callback gets called before +// user-attached handlers. +function normalizeEvents (on) { + /* istanbul ignore if */ + if (isDef(on[RANGE_TOKEN])) { + // IE input[type=range] only supports `change` event + var event = isIE ? 'change' : 'input'; + on[event] = [].concat(on[RANGE_TOKEN], on[event] || []); + delete on[RANGE_TOKEN]; + } + // This was originally intended to fix #4521 but no longer necessary + // after 2.5. Keeping it for backwards compat with generated code from < 2.4 + /* istanbul ignore if */ + if (isDef(on[CHECKBOX_RADIO_TOKEN])) { + on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []); + delete on[CHECKBOX_RADIO_TOKEN]; + } +} + +var target$1; + +function createOnceHandler (handler, event, capture) { + var _target = target$1; // save current target element in closure + return function onceHandler () { + var res = handler.apply(null, arguments); + if (res !== null) { + remove$2(event, onceHandler, capture, _target); + } + } +} + +function add$1 ( + event, + handler, + once$$1, + capture, + passive +) { + handler = withMacroTask(handler); + if (once$$1) { handler = createOnceHandler(handler, event, capture); } + target$1.addEventListener( + event, + handler, + supportsPassive + ? { capture: capture, passive: passive } + : capture + ); +} + +function remove$2 ( + event, + handler, + capture, + _target +) { + (_target || target$1).removeEventListener( + event, + handler._withTask || handler, + capture + ); +} + +function updateDOMListeners (oldVnode, vnode) { + if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) { + return + } + var on = vnode.data.on || {}; + var oldOn = oldVnode.data.on || {}; + target$1 = vnode.elm; + normalizeEvents(on); + updateListeners(on, oldOn, add$1, remove$2, vnode.context); + target$1 = undefined; +} + +var events = { + create: updateDOMListeners, + update: updateDOMListeners +} + +/* */ + +function updateDOMProps (oldVnode, vnode) { + if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) { + return + } + var key, cur; + var elm = vnode.elm; + var oldProps = oldVnode.data.domProps || {}; + var props = vnode.data.domProps || {}; + // clone observed objects, as the user probably wants to mutate it + if (isDef(props.__ob__)) { + props = vnode.data.domProps = extend({}, props); + } + + for (key in oldProps) { + if (isUndef(props[key])) { + elm[key] = ''; + } + } + for (key in props) { + cur = props[key]; + // ignore children if the node has textContent or innerHTML, + // as these will throw away existing DOM nodes and cause removal errors + // on subsequent patches (#3360) + if (key === 'textContent' || key === 'innerHTML') { + if (vnode.children) { vnode.children.length = 0; } + if (cur === oldProps[key]) { continue } + // #6601 work around Chrome version <= 55 bug where single textNode + // replaced by innerHTML/textContent retains its parentNode property + if (elm.childNodes.length === 1) { + elm.removeChild(elm.childNodes[0]); + } + } + + if (key === 'value') { + // store value as _value as well since + // non-string values will be stringified + elm._value = cur; + // avoid resetting cursor position when value is the same + var strCur = isUndef(cur) ? '' : String(cur); + if (shouldUpdateValue(elm, strCur)) { + elm.value = strCur; + } + } else { + elm[key] = cur; + } + } +} + +// check platforms/web/util/attrs.js acceptValue + + +function shouldUpdateValue (elm, checkVal) { + return (!elm.composing && ( + elm.tagName === 'OPTION' || + isNotInFocusAndDirty(elm, checkVal) || + isDirtyWithModifiers(elm, checkVal) + )) +} + +function isNotInFocusAndDirty (elm, checkVal) { + // return true when textbox (.number and .trim) loses focus and its value is + // not equal to the updated value + var notInFocus = true; + // #6157 + // work around IE bug when accessing document.activeElement in an iframe + try { notInFocus = document.activeElement !== elm; } catch (e) {} + return notInFocus && elm.value !== checkVal +} + +function isDirtyWithModifiers (elm, newVal) { + var value = elm.value; + var modifiers = elm._vModifiers; // injected by v-model runtime + if (isDef(modifiers)) { + if (modifiers.lazy) { + // inputs with lazy should only be updated when not in focus + return false + } + if (modifiers.number) { + return toNumber(value) !== toNumber(newVal) + } + if (modifiers.trim) { + return value.trim() !== newVal.trim() + } + } + return value !== newVal +} + +var domProps = { + create: updateDOMProps, + update: updateDOMProps +} + +/* */ + +var parseStyleText = cached(function (cssText) { + var res = {}; + var listDelimiter = /;(?![^(]*\))/g; + var propertyDelimiter = /:(.+)/; + cssText.split(listDelimiter).forEach(function (item) { + if (item) { + var tmp = item.split(propertyDelimiter); + tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim()); + } + }); + return res +}); + +// merge static and dynamic style data on the same vnode +function normalizeStyleData (data) { + var style = normalizeStyleBinding(data.style); + // static style is pre-processed into an object during compilation + // and is always a fresh object, so it's safe to merge into it + return data.staticStyle + ? extend(data.staticStyle, style) + : style +} + +// normalize possible array / string values into Object +function normalizeStyleBinding (bindingStyle) { + if (Array.isArray(bindingStyle)) { + return toObject(bindingStyle) + } + if (typeof bindingStyle === 'string') { + return parseStyleText(bindingStyle) + } + return bindingStyle +} + +/** + * parent component style should be after child's + * so that parent component's style could override it + */ +function getStyle (vnode, checkChild) { + var res = {}; + var styleData; + + if (checkChild) { + var childNode = vnode; + while (childNode.componentInstance) { + childNode = childNode.componentInstance._vnode; + if ( + childNode && childNode.data && + (styleData = normalizeStyleData(childNode.data)) + ) { + extend(res, styleData); + } + } + } + + if ((styleData = normalizeStyleData(vnode.data))) { + extend(res, styleData); + } + + var parentNode = vnode; + while ((parentNode = parentNode.parent)) { + if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) { + extend(res, styleData); + } + } + return res +} + +/* */ + +var cssVarRE = /^--/; +var importantRE = /\s*!important$/; +var setProp = function (el, name, val) { + /* istanbul ignore if */ + if (cssVarRE.test(name)) { + el.style.setProperty(name, val); + } else if (importantRE.test(val)) { + el.style.setProperty(name, val.replace(importantRE, ''), 'important'); + } else { + var normalizedName = normalize(name); + if (Array.isArray(val)) { + // Support values array created by autoprefixer, e.g. + // {display: ["-webkit-box", "-ms-flexbox", "flex"]} + // Set them one by one, and the browser will only set those it can recognize + for (var i = 0, len = val.length; i < len; i++) { + el.style[normalizedName] = val[i]; + } + } else { + el.style[normalizedName] = val; + } + } +}; + +var vendorNames = ['Webkit', 'Moz', 'ms']; + +var emptyStyle; +var normalize = cached(function (prop) { + emptyStyle = emptyStyle || document.createElement('div').style; + prop = camelize(prop); + if (prop !== 'filter' && (prop in emptyStyle)) { + return prop + } + var capName = prop.charAt(0).toUpperCase() + prop.slice(1); + for (var i = 0; i < vendorNames.length; i++) { + var name = vendorNames[i] + capName; + if (name in emptyStyle) { + return name + } + } +}); + +function updateStyle (oldVnode, vnode) { + var data = vnode.data; + var oldData = oldVnode.data; + + if (isUndef(data.staticStyle) && isUndef(data.style) && + isUndef(oldData.staticStyle) && isUndef(oldData.style) + ) { + return + } + + var cur, name; + var el = vnode.elm; + var oldStaticStyle = oldData.staticStyle; + var oldStyleBinding = oldData.normalizedStyle || oldData.style || {}; + + // if static style exists, stylebinding already merged into it when doing normalizeStyleData + var oldStyle = oldStaticStyle || oldStyleBinding; + + var style = normalizeStyleBinding(vnode.data.style) || {}; + + // store normalized style under a different key for next diff + // make sure to clone it if it's reactive, since the user likely wants + // to mutate it. + vnode.data.normalizedStyle = isDef(style.__ob__) + ? extend({}, style) + : style; + + var newStyle = getStyle(vnode, true); + + for (name in oldStyle) { + if (isUndef(newStyle[name])) { + setProp(el, name, ''); + } + } + for (name in newStyle) { + cur = newStyle[name]; + if (cur !== oldStyle[name]) { + // ie9 setting to null has no effect, must use empty string + setProp(el, name, cur == null ? '' : cur); + } + } +} + +var style = { + create: updateStyle, + update: updateStyle +} + +/* */ + +/** + * Add class with compatibility for SVG since classList is not supported on + * SVG elements in IE + */ +function addClass (el, cls) { + /* istanbul ignore if */ + if (!cls || !(cls = cls.trim())) { + return + } + + /* istanbul ignore else */ + if (el.classList) { + if (cls.indexOf(' ') > -1) { + cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); }); + } else { + el.classList.add(cls); + } + } else { + var cur = " " + (el.getAttribute('class') || '') + " "; + if (cur.indexOf(' ' + cls + ' ') < 0) { + el.setAttribute('class', (cur + cls).trim()); + } + } +} + +/** + * Remove class with compatibility for SVG since classList is not supported on + * SVG elements in IE + */ +function removeClass (el, cls) { + /* istanbul ignore if */ + if (!cls || !(cls = cls.trim())) { + return + } + + /* istanbul ignore else */ + if (el.classList) { + if (cls.indexOf(' ') > -1) { + cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); }); + } else { + el.classList.remove(cls); + } + if (!el.classList.length) { + el.removeAttribute('class'); + } + } else { + var cur = " " + (el.getAttribute('class') || '') + " "; + var tar = ' ' + cls + ' '; + while (cur.indexOf(tar) >= 0) { + cur = cur.replace(tar, ' '); + } + cur = cur.trim(); + if (cur) { + el.setAttribute('class', cur); + } else { + el.removeAttribute('class'); + } + } +} + +/* */ + +function resolveTransition (def) { + if (!def) { + return + } + /* istanbul ignore else */ + if (typeof def === 'object') { + var res = {}; + if (def.css !== false) { + extend(res, autoCssTransition(def.name || 'v')); + } + extend(res, def); + return res + } else if (typeof def === 'string') { + return autoCssTransition(def) + } +} + +var autoCssTransition = cached(function (name) { + return { + enterClass: (name + "-enter"), + enterToClass: (name + "-enter-to"), + enterActiveClass: (name + "-enter-active"), + leaveClass: (name + "-leave"), + leaveToClass: (name + "-leave-to"), + leaveActiveClass: (name + "-leave-active") + } +}); + +var hasTransition = inBrowser && !isIE9; +var TRANSITION = 'transition'; +var ANIMATION = 'animation'; + +// Transition property/event sniffing +var transitionProp = 'transition'; +var transitionEndEvent = 'transitionend'; +var animationProp = 'animation'; +var animationEndEvent = 'animationend'; +if (hasTransition) { + /* istanbul ignore if */ + if (window.ontransitionend === undefined && + window.onwebkittransitionend !== undefined + ) { + transitionProp = 'WebkitTransition'; + transitionEndEvent = 'webkitTransitionEnd'; + } + if (window.onanimationend === undefined && + window.onwebkitanimationend !== undefined + ) { + animationProp = 'WebkitAnimation'; + animationEndEvent = 'webkitAnimationEnd'; + } +} + +// binding to window is necessary to make hot reload work in IE in strict mode +var raf = inBrowser + ? window.requestAnimationFrame + ? window.requestAnimationFrame.bind(window) + : setTimeout + : /* istanbul ignore next */ function (fn) { return fn(); }; + +function nextFrame (fn) { + raf(function () { + raf(fn); + }); +} + +function addTransitionClass (el, cls) { + var transitionClasses = el._transitionClasses || (el._transitionClasses = []); + if (transitionClasses.indexOf(cls) < 0) { + transitionClasses.push(cls); + addClass(el, cls); + } +} + +function removeTransitionClass (el, cls) { + if (el._transitionClasses) { + remove(el._transitionClasses, cls); + } + removeClass(el, cls); +} + +function whenTransitionEnds ( + el, + expectedType, + cb +) { + var ref = getTransitionInfo(el, expectedType); + var type = ref.type; + var timeout = ref.timeout; + var propCount = ref.propCount; + if (!type) { return cb() } + var event = type === TRANSITION ? transitionEndEvent : animationEndEvent; + var ended = 0; + var end = function () { + el.removeEventListener(event, onEnd); + cb(); + }; + var onEnd = function (e) { + if (e.target === el) { + if (++ended >= propCount) { + end(); + } + } + }; + setTimeout(function () { + if (ended < propCount) { + end(); + } + }, timeout + 1); + el.addEventListener(event, onEnd); +} + +var transformRE = /\b(transform|all)(,|$)/; + +function getTransitionInfo (el, expectedType) { + var styles = window.getComputedStyle(el); + var transitionDelays = styles[transitionProp + 'Delay'].split(', '); + var transitionDurations = styles[transitionProp + 'Duration'].split(', '); + var transitionTimeout = getTimeout(transitionDelays, transitionDurations); + var animationDelays = styles[animationProp + 'Delay'].split(', '); + var animationDurations = styles[animationProp + 'Duration'].split(', '); + var animationTimeout = getTimeout(animationDelays, animationDurations); + + var type; + var timeout = 0; + var propCount = 0; + /* istanbul ignore if */ + if (expectedType === TRANSITION) { + if (transitionTimeout > 0) { + type = TRANSITION; + timeout = transitionTimeout; + propCount = transitionDurations.length; + } + } else if (expectedType === ANIMATION) { + if (animationTimeout > 0) { + type = ANIMATION; + timeout = animationTimeout; + propCount = animationDurations.length; + } + } else { + timeout = Math.max(transitionTimeout, animationTimeout); + type = timeout > 0 + ? transitionTimeout > animationTimeout + ? TRANSITION + : ANIMATION + : null; + propCount = type + ? type === TRANSITION + ? transitionDurations.length + : animationDurations.length + : 0; + } + var hasTransform = + type === TRANSITION && + transformRE.test(styles[transitionProp + 'Property']); + return { + type: type, + timeout: timeout, + propCount: propCount, + hasTransform: hasTransform + } +} + +function getTimeout (delays, durations) { + /* istanbul ignore next */ + while (delays.length < durations.length) { + delays = delays.concat(delays); + } + + return Math.max.apply(null, durations.map(function (d, i) { + return toMs(d) + toMs(delays[i]) + })) +} + +function toMs (s) { + return Number(s.slice(0, -1)) * 1000 +} + +/* */ + +function enter (vnode, toggleDisplay) { + var el = vnode.elm; + + // call leave callback now + if (isDef(el._leaveCb)) { + el._leaveCb.cancelled = true; + el._leaveCb(); + } + + var data = resolveTransition(vnode.data.transition); + if (isUndef(data)) { + return + } + + /* istanbul ignore if */ + if (isDef(el._enterCb) || el.nodeType !== 1) { + return + } + + var css = data.css; + var type = data.type; + var enterClass = data.enterClass; + var enterToClass = data.enterToClass; + var enterActiveClass = data.enterActiveClass; + var appearClass = data.appearClass; + var appearToClass = data.appearToClass; + var appearActiveClass = data.appearActiveClass; + var beforeEnter = data.beforeEnter; + var enter = data.enter; + var afterEnter = data.afterEnter; + var enterCancelled = data.enterCancelled; + var beforeAppear = data.beforeAppear; + var appear = data.appear; + var afterAppear = data.afterAppear; + var appearCancelled = data.appearCancelled; + var duration = data.duration; + + // activeInstance will always be the <transition> component managing this + // transition. One edge case to check is when the <transition> is placed + // as the root node of a child component. In that case we need to check + // <transition>'s parent for appear check. + var context = activeInstance; + var transitionNode = activeInstance.$vnode; + while (transitionNode && transitionNode.parent) { + transitionNode = transitionNode.parent; + context = transitionNode.context; + } + + var isAppear = !context._isMounted || !vnode.isRootInsert; + + if (isAppear && !appear && appear !== '') { + return + } + + var startClass = isAppear && appearClass + ? appearClass + : enterClass; + var activeClass = isAppear && appearActiveClass + ? appearActiveClass + : enterActiveClass; + var toClass = isAppear && appearToClass + ? appearToClass + : enterToClass; + + var beforeEnterHook = isAppear + ? (beforeAppear || beforeEnter) + : beforeEnter; + var enterHook = isAppear + ? (typeof appear === 'function' ? appear : enter) + : enter; + var afterEnterHook = isAppear + ? (afterAppear || afterEnter) + : afterEnter; + var enterCancelledHook = isAppear + ? (appearCancelled || enterCancelled) + : enterCancelled; + + var explicitEnterDuration = toNumber( + isObject(duration) + ? duration.enter + : duration + ); + + if ("development" !== 'production' && explicitEnterDuration != null) { + checkDuration(explicitEnterDuration, 'enter', vnode); + } + + var expectsCSS = css !== false && !isIE9; + var userWantsControl = getHookArgumentsLength(enterHook); + + var cb = el._enterCb = once(function () { + if (expectsCSS) { + removeTransitionClass(el, toClass); + removeTransitionClass(el, activeClass); + } + if (cb.cancelled) { + if (expectsCSS) { + removeTransitionClass(el, startClass); + } + enterCancelledHook && enterCancelledHook(el); + } else { + afterEnterHook && afterEnterHook(el); + } + el._enterCb = null; + }); + + if (!vnode.data.show) { + // remove pending leave element on enter by injecting an insert hook + mergeVNodeHook(vnode, 'insert', function () { + var parent = el.parentNode; + var pendingNode = parent && parent._pending && parent._pending[vnode.key]; + if (pendingNode && + pendingNode.tag === vnode.tag && + pendingNode.elm._leaveCb + ) { + pendingNode.elm._leaveCb(); + } + enterHook && enterHook(el, cb); + }); + } + + // start enter transition + beforeEnterHook && beforeEnterHook(el); + if (expectsCSS) { + addTransitionClass(el, startClass); + addTransitionClass(el, activeClass); + nextFrame(function () { + removeTransitionClass(el, startClass); + if (!cb.cancelled) { + addTransitionClass(el, toClass); + if (!userWantsControl) { + if (isValidDuration(explicitEnterDuration)) { + setTimeout(cb, explicitEnterDuration); + } else { + whenTransitionEnds(el, type, cb); + } + } + } + }); + } + + if (vnode.data.show) { + toggleDisplay && toggleDisplay(); + enterHook && enterHook(el, cb); + } + + if (!expectsCSS && !userWantsControl) { + cb(); + } +} + +function leave (vnode, rm) { + var el = vnode.elm; + + // call enter callback now + if (isDef(el._enterCb)) { + el._enterCb.cancelled = true; + el._enterCb(); + } + + var data = resolveTransition(vnode.data.transition); + if (isUndef(data) || el.nodeType !== 1) { + return rm() + } + + /* istanbul ignore if */ + if (isDef(el._leaveCb)) { + return + } + + var css = data.css; + var type = data.type; + var leaveClass = data.leaveClass; + var leaveToClass = data.leaveToClass; + var leaveActiveClass = data.leaveActiveClass; + var beforeLeave = data.beforeLeave; + var leave = data.leave; + var afterLeave = data.afterLeave; + var leaveCancelled = data.leaveCancelled; + var delayLeave = data.delayLeave; + var duration = data.duration; + + var expectsCSS = css !== false && !isIE9; + var userWantsControl = getHookArgumentsLength(leave); + + var explicitLeaveDuration = toNumber( + isObject(duration) + ? duration.leave + : duration + ); + + if ("development" !== 'production' && isDef(explicitLeaveDuration)) { + checkDuration(explicitLeaveDuration, 'leave', vnode); + } + + var cb = el._leaveCb = once(function () { + if (el.parentNode && el.parentNode._pending) { + el.parentNode._pending[vnode.key] = null; + } + if (expectsCSS) { + removeTransitionClass(el, leaveToClass); + removeTransitionClass(el, leaveActiveClass); + } + if (cb.cancelled) { + if (expectsCSS) { + removeTransitionClass(el, leaveClass); + } + leaveCancelled && leaveCancelled(el); + } else { + rm(); + afterLeave && afterLeave(el); + } + el._leaveCb = null; + }); + + if (delayLeave) { + delayLeave(performLeave); + } else { + performLeave(); + } + + function performLeave () { + // the delayed leave may have already been cancelled + if (cb.cancelled) { + return + } + // record leaving element + if (!vnode.data.show) { + (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode; + } + beforeLeave && beforeLeave(el); + if (expectsCSS) { + addTransitionClass(el, leaveClass); + addTransitionClass(el, leaveActiveClass); + nextFrame(function () { + removeTransitionClass(el, leaveClass); + if (!cb.cancelled) { + addTransitionClass(el, leaveToClass); + if (!userWantsControl) { + if (isValidDuration(explicitLeaveDuration)) { + setTimeout(cb, explicitLeaveDuration); + } else { + whenTransitionEnds(el, type, cb); + } + } + } + }); + } + leave && leave(el, cb); + if (!expectsCSS && !userWantsControl) { + cb(); + } + } +} + +// only used in dev mode +function checkDuration (val, name, vnode) { + if (typeof val !== 'number') { + warn( + "<transition> explicit " + name + " duration is not a valid number - " + + "got " + (JSON.stringify(val)) + ".", + vnode.context + ); + } else if (isNaN(val)) { + warn( + "<transition> explicit " + name + " duration is NaN - " + + 'the duration expression might be incorrect.', + vnode.context + ); + } +} + +function isValidDuration (val) { + return typeof val === 'number' && !isNaN(val) +} + +/** + * Normalize a transition hook's argument length. The hook may be: + * - a merged hook (invoker) with the original in .fns + * - a wrapped component method (check ._length) + * - a plain function (.length) + */ +function getHookArgumentsLength (fn) { + if (isUndef(fn)) { + return false + } + var invokerFns = fn.fns; + if (isDef(invokerFns)) { + // invoker + return getHookArgumentsLength( + Array.isArray(invokerFns) + ? invokerFns[0] + : invokerFns + ) + } else { + return (fn._length || fn.length) > 1 + } +} + +function _enter (_, vnode) { + if (vnode.data.show !== true) { + enter(vnode); + } +} + +var transition = inBrowser ? { + create: _enter, + activate: _enter, + remove: function remove$$1 (vnode, rm) { + /* istanbul ignore else */ + if (vnode.data.show !== true) { + leave(vnode, rm); + } else { + rm(); + } + } +} : {} + +var platformModules = [ + attrs, + klass, + events, + domProps, + style, + transition +] + +/* */ + +// the directive module should be applied last, after all +// built-in modules have been applied. +var modules = platformModules.concat(baseModules); + +var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules }); + +/** + * Not type checking this file because flow doesn't like attaching + * properties to Elements. + */ + +/* istanbul ignore if */ +if (isIE9) { + // http://www.matts411.com/post/internet-explorer-9-oninput/ + document.addEventListener('selectionchange', function () { + var el = document.activeElement; + if (el && el.vmodel) { + trigger(el, 'input'); + } + }); +} + +var directive = { + inserted: function inserted (el, binding, vnode, oldVnode) { + if (vnode.tag === 'select') { + // #6903 + if (oldVnode.elm && !oldVnode.elm._vOptions) { + mergeVNodeHook(vnode, 'postpatch', function () { + directive.componentUpdated(el, binding, vnode); + }); + } else { + setSelected(el, binding, vnode.context); + } + el._vOptions = [].map.call(el.options, getValue); + } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) { + el._vModifiers = binding.modifiers; + if (!binding.modifiers.lazy) { + el.addEventListener('compositionstart', onCompositionStart); + el.addEventListener('compositionend', onCompositionEnd); + // Safari < 10.2 & UIWebView doesn't fire compositionend when + // switching focus before confirming composition choice + // this also fixes the issue where some browsers e.g. iOS Chrome + // fires "change" instead of "input" on autocomplete. + el.addEventListener('change', onCompositionEnd); + /* istanbul ignore if */ + if (isIE9) { + el.vmodel = true; + } + } + } + }, + + componentUpdated: function componentUpdated (el, binding, vnode) { + if (vnode.tag === 'select') { + setSelected(el, binding, vnode.context); + // in case the options rendered by v-for have changed, + // it's possible that the value is out-of-sync with the rendered options. + // detect such cases and filter out values that no longer has a matching + // option in the DOM. + var prevOptions = el._vOptions; + var curOptions = el._vOptions = [].map.call(el.options, getValue); + if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) { + // trigger change event if + // no matching option found for at least one value + var needReset = el.multiple + ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); }) + : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions); + if (needReset) { + trigger(el, 'change'); + } + } + } + } +}; + +function setSelected (el, binding, vm) { + actuallySetSelected(el, binding, vm); + /* istanbul ignore if */ + if (isIE || isEdge) { + setTimeout(function () { + actuallySetSelected(el, binding, vm); + }, 0); + } +} + +function actuallySetSelected (el, binding, vm) { + var value = binding.value; + var isMultiple = el.multiple; + if (isMultiple && !Array.isArray(value)) { + "development" !== 'production' && warn( + "<select multiple v-model=\"" + (binding.expression) + "\"> " + + "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)), + vm + ); + return + } + var selected, option; + for (var i = 0, l = el.options.length; i < l; i++) { + option = el.options[i]; + if (isMultiple) { + selected = looseIndexOf(value, getValue(option)) > -1; + if (option.selected !== selected) { + option.selected = selected; + } + } else { + if (looseEqual(getValue(option), value)) { + if (el.selectedIndex !== i) { + el.selectedIndex = i; + } + return + } + } + } + if (!isMultiple) { + el.selectedIndex = -1; + } +} + +function hasNoMatchingOption (value, options) { + return options.every(function (o) { return !looseEqual(o, value); }) +} + +function getValue (option) { + return '_value' in option + ? option._value + : option.value +} + +function onCompositionStart (e) { + e.target.composing = true; +} + +function onCompositionEnd (e) { + // prevent triggering an input event for no reason + if (!e.target.composing) { return } + e.target.composing = false; + trigger(e.target, 'input'); +} + +function trigger (el, type) { + var e = document.createEvent('HTMLEvents'); + e.initEvent(type, true, true); + el.dispatchEvent(e); +} + +/* */ + +// recursively search for possible transition defined inside the component root +function locateNode (vnode) { + return vnode.componentInstance && (!vnode.data || !vnode.data.transition) + ? locateNode(vnode.componentInstance._vnode) + : vnode +} + +var show = { + bind: function bind (el, ref, vnode) { + var value = ref.value; + + vnode = locateNode(vnode); + var transition$$1 = vnode.data && vnode.data.transition; + var originalDisplay = el.__vOriginalDisplay = + el.style.display === 'none' ? '' : el.style.display; + if (value && transition$$1) { + vnode.data.show = true; + enter(vnode, function () { + el.style.display = originalDisplay; + }); + } else { + el.style.display = value ? originalDisplay : 'none'; + } + }, + + update: function update (el, ref, vnode) { + var value = ref.value; + var oldValue = ref.oldValue; + + /* istanbul ignore if */ + if (!value === !oldValue) { return } + vnode = locateNode(vnode); + var transition$$1 = vnode.data && vnode.data.transition; + if (transition$$1) { + vnode.data.show = true; + if (value) { + enter(vnode, function () { + el.style.display = el.__vOriginalDisplay; + }); + } else { + leave(vnode, function () { + el.style.display = 'none'; + }); + } + } else { + el.style.display = value ? el.__vOriginalDisplay : 'none'; + } + }, + + unbind: function unbind ( + el, + binding, + vnode, + oldVnode, + isDestroy + ) { + if (!isDestroy) { + el.style.display = el.__vOriginalDisplay; + } + } +} + +var platformDirectives = { + model: directive, + show: show +} + +/* */ + +// Provides transition support for a single element/component. +// supports transition mode (out-in / in-out) + +var transitionProps = { + name: String, + appear: Boolean, + css: Boolean, + mode: String, + type: String, + enterClass: String, + leaveClass: String, + enterToClass: String, + leaveToClass: String, + enterActiveClass: String, + leaveActiveClass: String, + appearClass: String, + appearActiveClass: String, + appearToClass: String, + duration: [Number, String, Object] +}; + +// in case the child is also an abstract component, e.g. <keep-alive> +// we want to recursively retrieve the real component to be rendered +function getRealChild (vnode) { + var compOptions = vnode && vnode.componentOptions; + if (compOptions && compOptions.Ctor.options.abstract) { + return getRealChild(getFirstComponentChild(compOptions.children)) + } else { + return vnode + } +} + +function extractTransitionData (comp) { + var data = {}; + var options = comp.$options; + // props + for (var key in options.propsData) { + data[key] = comp[key]; + } + // events. + // extract listeners and pass them directly to the transition methods + var listeners = options._parentListeners; + for (var key$1 in listeners) { + data[camelize(key$1)] = listeners[key$1]; + } + return data +} + +function placeholder (h, rawChild) { + if (/\d-keep-alive$/.test(rawChild.tag)) { + return h('keep-alive', { + props: rawChild.componentOptions.propsData + }) + } +} + +function hasParentTransition (vnode) { + while ((vnode = vnode.parent)) { + if (vnode.data.transition) { + return true + } + } +} + +function isSameChild (child, oldChild) { + return oldChild.key === child.key && oldChild.tag === child.tag +} + +var Transition = { + name: 'transition', + props: transitionProps, + abstract: true, + + render: function render (h) { + var this$1 = this; + + var children = this.$slots.default; + if (!children) { + return + } + + // filter out text nodes (possible whitespaces) + children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); }); + /* istanbul ignore if */ + if (!children.length) { + return + } + + // warn multiple elements + if ("development" !== 'production' && children.length > 1) { + warn( + '<transition> can only be used on a single element. Use ' + + '<transition-group> for lists.', + this.$parent + ); + } + + var mode = this.mode; + + // warn invalid mode + if ("development" !== 'production' && + mode && mode !== 'in-out' && mode !== 'out-in' + ) { + warn( + 'invalid <transition> mode: ' + mode, + this.$parent + ); + } + + var rawChild = children[0]; + + // if this is a component root node and the component's + // parent container node also has transition, skip. + if (hasParentTransition(this.$vnode)) { + return rawChild + } + + // apply transition data to child + // use getRealChild() to ignore abstract components e.g. keep-alive + var child = getRealChild(rawChild); + /* istanbul ignore if */ + if (!child) { + return rawChild + } + + if (this._leaving) { + return placeholder(h, rawChild) + } + + // ensure a key that is unique to the vnode type and to this transition + // component instance. This key will be used to remove pending leaving nodes + // during entering. + var id = "__transition-" + (this._uid) + "-"; + child.key = child.key == null + ? child.isComment + ? id + 'comment' + : id + child.tag + : isPrimitive(child.key) + ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key) + : child.key; + + var data = (child.data || (child.data = {})).transition = extractTransitionData(this); + var oldRawChild = this._vnode; + var oldChild = getRealChild(oldRawChild); + + // mark v-show + // so that the transition module can hand over the control to the directive + if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) { + child.data.show = true; + } + + if ( + oldChild && + oldChild.data && + !isSameChild(child, oldChild) && + !isAsyncPlaceholder(oldChild) && + // #6687 component root is a comment node + !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment) + ) { + // replace old child transition data with fresh one + // important for dynamic transitions! + var oldData = oldChild.data.transition = extend({}, data); + // handle transition mode + if (mode === 'out-in') { + // return placeholder node and queue update when leave finishes + this._leaving = true; + mergeVNodeHook(oldData, 'afterLeave', function () { + this$1._leaving = false; + this$1.$forceUpdate(); + }); + return placeholder(h, rawChild) + } else if (mode === 'in-out') { + if (isAsyncPlaceholder(child)) { + return oldRawChild + } + var delayedLeave; + var performLeave = function () { delayedLeave(); }; + mergeVNodeHook(data, 'afterEnter', performLeave); + mergeVNodeHook(data, 'enterCancelled', performLeave); + mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; }); + } + } + + return rawChild + } +} + +/* */ + +// Provides transition support for list items. +// supports move transitions using the FLIP technique. + +// Because the vdom's children update algorithm is "unstable" - i.e. +// it doesn't guarantee the relative positioning of removed elements, +// we force transition-group to update its children into two passes: +// in the first pass, we remove all nodes that need to be removed, +// triggering their leaving transition; in the second pass, we insert/move +// into the final desired state. This way in the second pass removed +// nodes will remain where they should be. + +var props = extend({ + tag: String, + moveClass: String +}, transitionProps); + +delete props.mode; + +var TransitionGroup = { + props: props, + + render: function render (h) { + var tag = this.tag || this.$vnode.data.tag || 'span'; + var map = Object.create(null); + var prevChildren = this.prevChildren = this.children; + var rawChildren = this.$slots.default || []; + var children = this.children = []; + var transitionData = extractTransitionData(this); + + for (var i = 0; i < rawChildren.length; i++) { + var c = rawChildren[i]; + if (c.tag) { + if (c.key != null && String(c.key).indexOf('__vlist') !== 0) { + children.push(c); + map[c.key] = c + ;(c.data || (c.data = {})).transition = transitionData; + } else { + var opts = c.componentOptions; + var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag; + warn(("<transition-group> children must be keyed: <" + name + ">")); + } + } + } + + if (prevChildren) { + var kept = []; + var removed = []; + for (var i$1 = 0; i$1 < prevChildren.length; i$1++) { + var c$1 = prevChildren[i$1]; + c$1.data.transition = transitionData; + c$1.data.pos = c$1.elm.getBoundingClientRect(); + if (map[c$1.key]) { + kept.push(c$1); + } else { + removed.push(c$1); + } + } + this.kept = h(tag, null, kept); + this.removed = removed; + } + + return h(tag, null, children) + }, + + beforeUpdate: function beforeUpdate () { + // force removing pass + this.__patch__( + this._vnode, + this.kept, + false, // hydrating + true // removeOnly (!important, avoids unnecessary moves) + ); + this._vnode = this.kept; + }, + + updated: function updated () { + var children = this.prevChildren; + var moveClass = this.moveClass || ((this.name || 'v') + '-move'); + if (!children.length || !this.hasMove(children[0].elm, moveClass)) { + return + } + + // we divide the work into three loops to avoid mixing DOM reads and writes + // in each iteration - which helps prevent layout thrashing. + children.forEach(callPendingCbs); + children.forEach(recordPosition); + children.forEach(applyTranslation); + + // force reflow to put everything in position + // assign to this to avoid being removed in tree-shaking + // $flow-disable-line + this._reflow = document.body.offsetHeight; + + children.forEach(function (c) { + if (c.data.moved) { + var el = c.elm; + var s = el.style; + addTransitionClass(el, moveClass); + s.transform = s.WebkitTransform = s.transitionDuration = ''; + el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) { + if (!e || /transform$/.test(e.propertyName)) { + el.removeEventListener(transitionEndEvent, cb); + el._moveCb = null; + removeTransitionClass(el, moveClass); + } + }); + } + }); + }, + + methods: { + hasMove: function hasMove (el, moveClass) { + /* istanbul ignore if */ + if (!hasTransition) { + return false + } + /* istanbul ignore if */ + if (this._hasMove) { + return this._hasMove + } + // Detect whether an element with the move class applied has + // CSS transitions. Since the element may be inside an entering + // transition at this very moment, we make a clone of it and remove + // all other transition classes applied to ensure only the move class + // is applied. + var clone = el.cloneNode(); + if (el._transitionClasses) { + el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); }); + } + addClass(clone, moveClass); + clone.style.display = 'none'; + this.$el.appendChild(clone); + var info = getTransitionInfo(clone); + this.$el.removeChild(clone); + return (this._hasMove = info.hasTransform) + } + } +} + +function callPendingCbs (c) { + /* istanbul ignore if */ + if (c.elm._moveCb) { + c.elm._moveCb(); + } + /* istanbul ignore if */ + if (c.elm._enterCb) { + c.elm._enterCb(); + } +} + +function recordPosition (c) { + c.data.newPos = c.elm.getBoundingClientRect(); +} + +function applyTranslation (c) { + var oldPos = c.data.pos; + var newPos = c.data.newPos; + var dx = oldPos.left - newPos.left; + var dy = oldPos.top - newPos.top; + if (dx || dy) { + c.data.moved = true; + var s = c.elm.style; + s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)"; + s.transitionDuration = '0s'; + } +} + +var platformComponents = { + Transition: Transition, + TransitionGroup: TransitionGroup +} + +/* */ + +// install platform specific utils +Vue.config.mustUseProp = mustUseProp; +Vue.config.isReservedTag = isReservedTag; +Vue.config.isReservedAttr = isReservedAttr; +Vue.config.getTagNamespace = getTagNamespace; +Vue.config.isUnknownElement = isUnknownElement; + +// install platform runtime directives & components +extend(Vue.options.directives, platformDirectives); +extend(Vue.options.components, platformComponents); + +// install platform patch function +Vue.prototype.__patch__ = inBrowser ? patch : noop; + +// public mount method +Vue.prototype.$mount = function ( + el, + hydrating +) { + el = el && inBrowser ? query(el) : undefined; + return mountComponent(this, el, hydrating) +}; + +// devtools global hook +/* istanbul ignore next */ +if (inBrowser) { + setTimeout(function () { + if (config.devtools) { + if (devtools) { + devtools.emit('init', Vue); + } else if ( + "development" !== 'production' && + "development" !== 'test' && + isChrome + ) { + console[console.info ? 'info' : 'log']( + 'Download the Vue Devtools extension for a better development experience:\n' + + 'https://github.com/vuejs/vue-devtools' + ); + } + } + if ("development" !== 'production' && + "development" !== 'test' && + config.productionTip !== false && + typeof console !== 'undefined' + ) { + console[console.info ? 'info' : 'log']( + "You are running Vue in development mode.\n" + + "Make sure to turn on production mode when deploying for production.\n" + + "See more tips at https://vuejs.org/guide/deployment.html" + ); + } + }, 0); +} + +/* */ + +var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g; +var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/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 rawTokens = []; + var lastIndex = tagRE.lastIndex = 0; + var match, index, tokenValue; + while ((match = tagRE.exec(text))) { + index = match.index; + // push text token + if (index > lastIndex) { + rawTokens.push(tokenValue = text.slice(lastIndex, index)); + tokens.push(JSON.stringify(tokenValue)); + } + // tag token + var exp = parseFilters(match[1].trim()); + tokens.push(("_s(" + exp + ")")); + rawTokens.push({ '@binding': exp }); + lastIndex = index + match[0].length; + } + if (lastIndex < text.length) { + rawTokens.push(tokenValue = text.slice(lastIndex)); + tokens.push(JSON.stringify(tokenValue)); + } + return { + expression: tokens.join('+'), + tokens: rawTokens + } +} + +/* */ + +function transformNode (el, options) { + var warn = options.warn || baseWarn; + var staticClass = getAndRemoveAttr(el, 'class'); + if ("development" !== 'production' && staticClass) { + var res = parseText(staticClass, options.delimiters); + if (res) { + warn( + "class=\"" + staticClass + "\": " + + 'Interpolation inside attributes has been removed. ' + + 'Use v-bind or the colon shorthand instead. For example, ' + + 'instead of <div class="{{ val }}">, use <div :class="val">.' + ); + } + } + if (staticClass) { + el.staticClass = JSON.stringify(staticClass); + } + var classBinding = getBindingAttr(el, 'class', false /* getStatic */); + if (classBinding) { + el.classBinding = classBinding; + } +} + +function genData (el) { + var data = ''; + if (el.staticClass) { + data += "staticClass:" + (el.staticClass) + ","; + } + if (el.classBinding) { + data += "class:" + (el.classBinding) + ","; + } + return data +} + +var klass$1 = { + staticKeys: ['staticClass'], + transformNode: transformNode, + genData: genData +} + +/* */ + +function transformNode$1 (el, options) { + var warn = options.warn || baseWarn; + var staticStyle = getAndRemoveAttr(el, 'style'); + if (staticStyle) { + /* istanbul ignore if */ + { + var res = parseText(staticStyle, options.delimiters); + if (res) { + warn( + "style=\"" + staticStyle + "\": " + + 'Interpolation inside attributes has been removed. ' + + 'Use v-bind or the colon shorthand instead. For example, ' + + 'instead of <div style="{{ val }}">, use <div :style="val">.' + ); + } + } + el.staticStyle = JSON.stringify(parseStyleText(staticStyle)); + } + + var styleBinding = getBindingAttr(el, 'style', false /* getStatic */); + if (styleBinding) { + el.styleBinding = styleBinding; + } +} + +function genData$1 (el) { + var data = ''; + if (el.staticStyle) { + data += "staticStyle:" + (el.staticStyle) + ","; + } + if (el.styleBinding) { + data += "style:(" + (el.styleBinding) + "),"; + } + return data +} + +var style$1 = { + staticKeys: ['staticStyle'], + transformNode: transformNode$1, + genData: genData$1 +} + +/* */ + +var decoder; + +var he = { + decode: function decode (html) { + decoder = decoder || document.createElement('div'); + decoder.innerHTML = html; + return decoder.textContent + } +} + +/* */ + +var isUnaryTag = makeMap( + 'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' + + 'link,meta,param,source,track,wbr' +); + +// Elements that you can, intentionally, leave open +// (and which close themselves) +var canBeLeftOpenTag = makeMap( + 'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source' +); + +// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3 +// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content +var isNonPhrasingTag = makeMap( + 'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' + + 'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' + + 'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' + + 'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' + + 'title,tr,track' +); + +/** + * Not type-checking this file because it's mostly vendor code. + */ + +/*! + * 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 attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/; +// 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; +// #7298: escape - to avoid being pased as HTML comment when inlined in page +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', + '	': '\t' +}; +var encodedAttr = /&(?:lt|gt|quot|amp);/g; +var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g; + +// #5992 +var isIgnoreNewlineTag = makeMap('pre,textarea', true); +var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; }; + +function decodeAttr (value, shouldDecodeNewlines) { + var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr; + return value.replace(re, function (match) { return decodingMap[match]; }) +} + +function parseHTML (html, options) { + var stack = []; + var expectHTML = options.expectHTML; + var isUnaryTag$$1 = options.isUnaryTag || no; + var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no; + var index = 0; + var last, lastTag; + while (html) { + last = html; + // Make sure we're not in a plaintext content element like script/style + if (!lastTag || !isPlainTextElement(lastTag)) { + var textEnd = html.indexOf('<'); + if (textEnd === 0) { + // Comment: + if (comment.test(html)) { + var commentEnd = html.indexOf('-->'); + + if (commentEnd >= 0) { + if (options.shouldKeepComment) { + options.comment(html.substring(4, commentEnd)); + } + advance(commentEnd + 3); + continue + } + } + + // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment + if (conditionalComment.test(html)) { + var conditionalEnd = html.indexOf(']>'); + + if (conditionalEnd >= 0) { + advance(conditionalEnd + 2); + continue + } + } + + // Doctype: + var doctypeMatch = html.match(doctype); + if (doctypeMatch) { + advance(doctypeMatch[0].length); + continue + } + + // End tag: + var endTagMatch = html.match(endTag); + if (endTagMatch) { + var curIndex = index; + advance(endTagMatch[0].length); + parseEndTag(endTagMatch[1], curIndex, index); + continue + } + + // Start tag: + var startTagMatch = parseStartTag(); + if (startTagMatch) { + handleStartTag(startTagMatch); + if (shouldIgnoreFirstNewline(lastTag, html)) { + advance(1); + } + continue + } + } + + var text = (void 0), rest = (void 0), next = (void 0); + if (textEnd >= 0) { + rest = html.slice(textEnd); + while ( + !endTag.test(rest) && + !startTagOpen.test(rest) && + !comment.test(rest) && + !conditionalComment.test(rest) + ) { + // < in plain text, be forgiving and treat it as text + next = rest.indexOf('<', 1); + if (next < 0) { break } + textEnd += next; + rest = html.slice(textEnd); + } + text = html.substring(0, textEnd); + 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') // #7298 + .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1'); + } + if (shouldIgnoreFirstNewline(stackedTag, text)) { + text = text.slice(1); + } + if (options.chars) { + options.chars(text); + } + return '' + }); + index += html.length - rest$1.length; + html = rest$1; + parseEndTag(stackedTag, index - endTagLength, index); + } + + if (html === last) { + options.chars && options.chars(html); + if ("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] || ''; + var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href' + ? options.shouldDecodeNewlinesForHref + : options.shouldDecodeNewlines; + attrs[i] = { + name: args[1], + value: decodeAttr(value, 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 stripParensRE = /^\(|\)$/g; + +var argRE = /:(.*)$/; +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; + + + +function createASTElement ( + tag, + attrs, + parent +) { + return { + type: 1, + tag: tag, + attrsList: attrs, + attrsMap: makeAttrsMap(attrs), + parent: parent, + children: [] + } +} + +/** + * Convert HTML string to AST. + */ +function parse ( + template, + options +) { + warn$2 = options.warn || baseWarn; + + platformIsPreTag = options.isPreTag || no; + platformMustUseProp = options.mustUseProp || no; + platformGetTagNamespace = options.getTagNamespace || no; + + 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 closeElement (element) { + // check pre state + if (element.pre) { + inVPre = false; + } + if (platformIsPreTag(element.tag)) { + inPre = false; + } + // apply post-transforms + for (var i = 0; i < postTransforms.length; i++) { + postTransforms[i](element, options); + } + } + + parseHTML(template, { + warn: warn$2, + expectHTML: options.expectHTML, + isUnaryTag: options.isUnaryTag, + canBeLeftOpenTag: options.canBeLeftOpenTag, + shouldDecodeNewlines: options.shouldDecodeNewlines, + shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref, + 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 = createASTElement(tag, attrs, currentParent); + 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++) { + element = preTransforms[i](element, options) || element; + } + + if (!inVPre) { + processPre(element); + if (element.pre) { + inVPre = true; + } + } + if (platformIsPreTag(element.tag)) { + inPre = true; + } + if (inVPre) { + processRawAttrs(element); + } else if (!element.processed) { + // structural directives + processFor(element); + processIf(element); + processOnce(element); + // element-scope stuff + processElement(element, options); + } + + 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 { + closeElement(element); + } + }, + + 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]; + closeElement(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 res; + if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) { + children.push({ + type: 2, + expression: res.expression, + tokens: res.tokens, + 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 processElement (element, options) { + processKey(element); + + // determine whether this is a plain element after + // removing structural attributes + element.plain = !element.key && !element.attrsList.length; + + processRef(element); + processSlot(element); + processComponent(element); + for (var i = 0; i < transforms.length; i++) { + element = transforms[i](element, options) || element; + } + processAttrs(element); +} + +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 res = parseFor(exp); + if (res) { + extend(el, res); + } else { + warn$2( + ("Invalid v-for expression: " + exp) + ); + } + } +} + + + +function parseFor (exp) { + var inMatch = exp.match(forAliasRE); + if (!inMatch) { return } + var res = {}; + res.for = inMatch[2].trim(); + var alias = inMatch[1].trim().replace(stripParensRE, ''); + var iteratorMatch = alias.match(forIteratorRE); + if (iteratorMatch) { + res.alias = alias.replace(forIteratorRE, ''); + res.iterator1 = iteratorMatch[1].trim(); + if (iteratorMatch[2]) { + res.iterator2 = iteratorMatch[2].trim(); + } + } else { + res.alias = alias; + } + return res +} + +function processIf (el) { + var exp = getAndRemoveAttr(el, 'v-if'); + if (exp) { + el.if = exp; + addIfCondition(el, { + exp: exp, + block: el + }); + } else { + if (getAndRemoveAttr(el, 'v-else') != null) { + el.else = true; + } + var elseif = getAndRemoveAttr(el, 'v-else-if'); + if (elseif) { + el.elseif = elseif; + } + } +} + +function processIfConditions (el, parent) { + var prev = findPrevElement(parent.children); + if (prev && prev.if) { + addIfCondition(prev, { + exp: el.elseif, + block: el + }); + } else { + warn$2( + "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " + + "used on element <" + (el.tag) + "> without corresponding v-if." + ); + } +} + +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 slotScope; + if (el.tag === 'template') { + slotScope = getAndRemoveAttr(el, 'scope'); + /* istanbul ignore if */ + if ("development" !== 'production' && slotScope) { + warn$2( + "the \"scope\" attribute for scoped slots have been deprecated and " + + "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " + + "can also be used on plain elements in addition to <template> to " + + "denote scoped slots.", + true + ); + } + el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope'); + } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) { + /* istanbul ignore if */ + if ("development" !== 'production' && el.attrsMap['v-for']) { + warn$2( + "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " + + "(v-for takes higher priority). Use a wrapper <template> for the " + + "scoped slot to make it clearer.", + true + ); + } + el.slotScope = slotScope; + } + var slotTarget = getBindingAttr(el, 'slot'); + if (slotTarget) { + el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget; + // preserve slot as an attribute for native shadow DOM compat + // only for non-scoped slots. + if (el.tag !== 'template' && !el.slotScope) { + addAttr(el, 'slot', slotTarget); + } + } + } +} + +function processComponent (el) { + var binding; + if ((binding = getBindingAttr(el, 'is'))) { + el.component = binding; + } + if (getAndRemoveAttr(el, 'inline-template') != null) { + el.inlineTemplate = true; + } +} + +function processAttrs (el) { + var list = el.attrsList; + var i, l, name, rawName, value, modifiers, isProp; + for (i = 0, l = list.length; i < l; i++) { + name = rawName = list[i].name; + value = list[i].value; + if (dirRE.test(name)) { + // mark element as dynamic + el.hasBindings = true; + // modifiers + modifiers = parseModifiers(name); + if (modifiers) { + name = name.replace(modifierRE, ''); + } + if (bindRE.test(name)) { // v-bind + name = name.replace(bindRE, ''); + value = parseFilters(value); + isProp = false; + if (modifiers) { + if (modifiers.prop) { + isProp = true; + name = camelize(name); + if (name === 'innerHtml') { name = 'innerHTML'; } + } + if (modifiers.camel) { + name = camelize(name); + } + if (modifiers.sync) { + addHandler( + el, + ("update:" + (camelize(name))), + genAssignmentCode(value, "$event") + ); + } + } + if (isProp || ( + !el.component && 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 res = parseText(value, delimiters); + if (res) { + warn$2( + name + "=\"" + value + "\": " + + 'Interpolation inside attributes has been removed. ' + + 'Use v-bind or the colon shorthand instead. For example, ' + + 'instead of <div id="{{ val }}">, use <div :id="val">.' + ); + } + } + addAttr(el, name, JSON.stringify(value)); + // #6887 firefox doesn't update muted state if set via attribute + // even immediately after element creation + if (!el.component && + name === 'muted' && + platformMustUseProp(el.tag, el.attrsMap.type, name)) { + addProp(el, name, 'true'); + } + } + } +} + +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; + } +} + +/* */ + +/** + * Expand input[v-model] with dyanmic type bindings into v-if-else chains + * Turn this: + * <input v-model="data[type]" :type="type"> + * into this: + * <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]"> + * <input v-else-if="type === 'radio'" type="radio" v-model="data[type]"> + * <input v-else :type="type" v-model="data[type]"> + */ + +function preTransformNode (el, options) { + if (el.tag === 'input') { + var map = el.attrsMap; + if (!map['v-model']) { + return + } + + var typeBinding; + if (map[':type'] || map['v-bind:type']) { + typeBinding = getBindingAttr(el, 'type'); + } + if (!map.type && !typeBinding && map['v-bind']) { + typeBinding = "(" + (map['v-bind']) + ").type"; + } + + if (typeBinding) { + var ifCondition = getAndRemoveAttr(el, 'v-if', true); + var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : ""; + var hasElse = getAndRemoveAttr(el, 'v-else', true) != null; + var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true); + // 1. checkbox + var branch0 = cloneASTElement(el); + // process for on the main node + processFor(branch0); + addRawAttr(branch0, 'type', 'checkbox'); + processElement(branch0, options); + branch0.processed = true; // prevent it from double-processed + branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra; + addIfCondition(branch0, { + exp: branch0.if, + block: branch0 + }); + // 2. add radio else-if condition + var branch1 = cloneASTElement(el); + getAndRemoveAttr(branch1, 'v-for', true); + addRawAttr(branch1, 'type', 'radio'); + processElement(branch1, options); + addIfCondition(branch0, { + exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra, + block: branch1 + }); + // 3. other + var branch2 = cloneASTElement(el); + getAndRemoveAttr(branch2, 'v-for', true); + addRawAttr(branch2, ':type', typeBinding); + processElement(branch2, options); + addIfCondition(branch0, { + exp: ifCondition, + block: branch2 + }); + + if (hasElse) { + branch0.else = true; + } else if (elseIfCondition) { + branch0.elseif = elseIfCondition; + } + + return branch0 + } + } +} + +function cloneASTElement (el) { + return createASTElement(el.tag, el.attrsList.slice(), el.parent) +} + +var model$2 = { + preTransformNode: preTransformNode +} + +var modules$1 = [ + klass$1, + style$1, + model$2 +] + +/* */ + +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 baseOptions = { + expectHTML: true, + modules: modules$1, + directives: directives$1, + isPreTag: isPreTag, + isUnaryTag: isUnaryTag, + mustUseProp: mustUseProp, + canBeLeftOpenTag: canBeLeftOpenTag, + isReservedTag: isReservedTag, + getTagNamespace: getTagNamespace, + staticKeys: genStaticKeys(modules$1) +}; + +/* */ + +var isStaticKey; +var isPlatformReservedTag; + +var genStaticKeysCached = cached(genStaticKeys$1); + +/** + * Goal of the optimizer: walk the generated template AST tree + * and detect sub-trees that are purely static, i.e. parts of + * the DOM that never needs to change. + * + * Once we detect these sub-trees, we can: + * + * 1. Hoist them into constants, so that we no longer need to + * create fresh nodes for them on each re-render; + * 2. Completely skip them in the patching process. + */ +function optimize (root, options) { + if (!root) { return } + isStaticKey = genStaticKeysCached(options.staticKeys || ''); + isPlatformReservedTag = options.isReservedTag || no; + // first pass: mark all non-static nodes. + markStatic$1(root); + // second pass: mark static roots. + markStaticRoots(root, false); +} + +function genStaticKeys$1 (keys) { + return makeMap( + 'type,tag,attrsList,attrsMap,plain,parent,children,attrs' + + (keys ? ',' + keys : '') + ) +} + +function markStatic$1 (node) { + node.static = isStatic(node); + if (node.type === 1) { + // do not make component slot content static. this avoids + // 1. components not able to mutate slot nodes + // 2. static slot content fails for hot-reloading + if ( + !isPlatformReservedTag(node.tag) && + node.tag !== 'slot' && + node.attrsMap['inline-template'] == null + ) { + return + } + for (var i = 0, l = node.children.length; i < l; i++) { + var child = node.children[i]; + markStatic$1(child); + if (!child.static) { + node.static = false; + } + } + if (node.ifConditions) { + for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) { + var block = node.ifConditions[i$1].block; + markStatic$1(block); + if (!block.static) { + node.static = false; + } + } + } + } +} + +function markStaticRoots (node, isInFor) { + if (node.type === 1) { + if (node.static || node.once) { + node.staticInFor = isInFor; + } + // For a node to qualify as a static root, it should have children that + // are not just static text. Otherwise the cost of hoisting out will + // outweigh the benefits and it's better off to just always render it fresh. + if (node.static && node.children.length && !( + node.children.length === 1 && + node.children[0].type === 3 + )) { + node.staticRoot = true; + return + } else { + node.staticRoot = false; + } + if (node.children) { + for (var i = 0, l = node.children.length; i < l; i++) { + markStaticRoots(node.children[i], isInFor || !!node.for); + } + } + if (node.ifConditions) { + for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) { + markStaticRoots(node.ifConditions[i$1].block, isInFor); + } + } + } +} + +function isStatic (node) { + if (node.type === 2) { // expression + return false + } + if (node.type === 3) { // text + return true + } + return !!(node.pre || ( + !node.hasBindings && // no dynamic bindings + !node.if && !node.for && // not v-if or v-for or v-else + !isBuiltInTag(node.tag) && // not a built-in + isPlatformReservedTag(node.tag) && // not a component + !isDirectChildOfTemplateFor(node) && + Object.keys(node).every(isStaticKey) + )) +} + +function isDirectChildOfTemplateFor (node) { + while (node.parent) { + node = node.parent; + if (node.tag !== 'template') { + return false + } + if (node.for) { + return true + } + } + return false +} + +/* */ + +var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/; +var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/; + +// KeyboardEvent.keyCode aliases +var keyCodes = { + esc: 27, + tab: 9, + enter: 13, + space: 32, + up: 38, + left: 37, + right: 39, + down: 40, + 'delete': [8, 46] +}; + +// KeyboardEvent.key aliases +var keyNames = { + esc: 'Escape', + tab: 'Tab', + enter: 'Enter', + space: ' ', + // #7806: IE11 uses key names without `Arrow` prefix for arrow keys. + up: ['Up', 'ArrowUp'], + left: ['Left', 'ArrowLeft'], + right: ['Right', 'ArrowRight'], + down: ['Down', 'ArrowDown'], + 'delete': ['Backspace', 'Delete'] +}; + +// #4868: modifiers that prevent the execution of the listener +// need to explicitly return null so that we can determine whether to remove +// the listener for .once +var genGuard = function (condition) { return ("if(" + condition + ")return null;"); }; + +var modifierCode = { + stop: '$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 && $event.button !== 2") +}; + +function genHandlers ( + events, + isNative, + warn +) { + var res = isNative ? 'nativeOn:{' : 'on:{'; + for (var name in events) { + res += "\"" + name + "\":" + (genHandler(name, events[name])) + ","; + } + return res.slice(0, -1) + '}' +} + +function genHandler ( + name, + handler +) { + if (!handler) { + return 'function(){}' + } + + if (Array.isArray(handler)) { + return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]") + } + + var isMethodPath = simplePathRE.test(handler.value); + var isFunctionExpression = fnExpRE.test(handler.value); + + if (!handler.modifiers) { + if (isMethodPath || isFunctionExpression) { + return handler.value + } + /* istanbul ignore if */ + return ("function($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 if (key === 'exact') { + var modifiers = (handler.modifiers); + genModifierCode += genGuard( + ['ctrl', 'shift', 'alt', 'meta'] + .filter(function (keyModifier) { return !modifiers[keyModifier]; }) + .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); }) + .join('||') + ); + } else { + keys.push(key); + } + } + if (keys.length) { + code += genKeyFilter(keys); + } + // Make sure modifiers like prevent and stop get executed after key filtering + if (genModifierCode) { + code += genModifierCode; + } + var handlerCode = isMethodPath + ? ("return " + (handler.value) + "($event)") + : isFunctionExpression + ? ("return (" + (handler.value) + ")($event)") + : handler.value; + /* istanbul ignore if */ + return ("function($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 keyCode = keyCodes[key]; + var keyName = keyNames[key]; + return ( + "_k($event.keyCode," + + (JSON.stringify(key)) + "," + + (JSON.stringify(keyCode)) + "," + + "$event.key," + + "" + (JSON.stringify(keyName)) + + ")" + ) +} + +/* */ + +function on (el, dir) { + if ("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 + ")") + } 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$2 (el, state) { + var data = '{'; + + // directives first. + // directives may mutate the el's other properties before they are generated. + var dirs = genDirectives(el, state); + if (dirs) { data += dirs + ','; } + + // key + if (el.key) { + data += "key:" + (el.key) + ","; + } + // ref + if (el.ref) { + data += "ref:" + (el.ref) + ","; + } + if (el.refInFor) { + data += "refInFor:true,"; + } + // pre + if (el.pre) { + data += "pre:true,"; + } + // record original tag name for components using "is" attribute + if (el.component) { + data += "tag:\"" + (el.tag) + "\","; + } + // module data generation functions + for (var i = 0; i < state.dataGenFns.length; i++) { + data += state.dataGenFns[i](el); + } + // attributes + if (el.attrs) { + data += "attrs:{" + (genProps(el.attrs)) + "},"; + } + // DOM props + if (el.props) { + data += "domProps:{" + (genProps(el.props)) + "},"; + } + // event handlers + if (el.events) { + data += (genHandlers(el.events, false, state.warn)) + ","; + } + if (el.nativeEvents) { + data += (genHandlers(el.nativeEvents, true, state.warn)) + ","; + } + // slot target + // only for non-scoped slots + if (el.slotTarget && !el.slotScope) { + data += "slot:" + (el.slotTarget) + ","; + } + // scoped slots + if (el.scopedSlots) { + data += (genScopedSlots(el.scopedSlots, state)) + ","; + } + // component v-model + if (el.model) { + data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},"; + } + // inline-template + if (el.inlineTemplate) { + var inlineTemplate = genInlineTemplate(el, state); + if (inlineTemplate) { + data += inlineTemplate + ","; + } + } + data = data.replace(/,$/, '') + '}'; + // 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) + } + var fn = "function(" + (String(el.slotScope)) + "){" + + "return " + (el.tag === 'template' + ? el.if + ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined") + : genChildren(el, state) || 'undefined' + : genElement(el, state)) + "}"; + return ("{key:" + key + ",fn:" + fn + "}") +} + +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(" + (JSON.stringify(comment.text)) + ")") +} + +function genSlot (el, state) { + var slotName = el.slotName || '"default"'; + var children = genChildren(el, state); + var res = "_t(" + slotName + (children ? ("," + children) : ''); + var attrs = el.attrs && ("{" + (el.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]; + /* istanbul ignore if */ + { + 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*\\([^\\)]*\\)'); + +// 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') { + try { + new Function(("var " + ident + "=_")); + } catch (e) { + 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]) + "\"\n Raw expression: " + (text.trim()) + ); + } else { + errors.push( + "invalid expression: " + (e.message) + " in\n\n" + + " " + exp + "\n\n" + + " Raw expression: " + (text.trim()) + "\n" + ); + } + } +} + +/* */ + +function createFunction (code, errors) { + try { + return new Function(code) + } catch (err) { + errors.push({ err: err, code: code }); + return noop + } +} + +function createCompileToFunctionFn (compile) { + var cache = Object.create(null); + + return function compileToFunctions ( + template, + options, + vm + ) { + options = extend({}, options); + var warn$$1 = options.warn || warn; + delete options.warn; + + /* istanbul ignore if */ + { + // detect possible CSP restriction + try { + new Function('return 1'); + } catch (e) { + if (e.toString().match(/unsafe-eval|CSP/)) { + warn$$1( + 'It seems you are using the standalone build of Vue.js in an ' + + 'environment with Content Security Policy that prohibits unsafe-eval. ' + + 'The template compiler cannot work in this environment. Consider ' + + 'relaxing the policy to allow unsafe-eval or pre-compiling your ' + + 'templates into render functions.' + ); + } + } + } + + // check cache + var key = options.delimiters + ? String(options.delimiters) + template + : template; + if (cache[key]) { + return cache[key] + } + + // compile + var compiled = compile(template, options); + + // check compilation errors/tips + { + if (compiled.errors && compiled.errors.length) { + warn$$1( + "Error compiling template:\n\n" + template + "\n\n" + + compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n', + vm + ); + } + if (compiled.tips && compiled.tips.length) { + compiled.tips.forEach(function (msg) { return tip(msg, vm); }); + } + } + + // turn code into functions + var res = {}; + var fnGenErrors = []; + res.render = createFunction(compiled.render, fnGenErrors); + res.staticRenderFns = compiled.staticRenderFns.map(function (code) { + return createFunction(code, fnGenErrors) + }); + + // check function generation errors. + // this should only happen if there is a bug in the compiler itself. + // mostly for codegen development use + /* istanbul ignore if */ + { + if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) { + warn$$1( + "Failed to generate render function:\n\n" + + fnGenErrors.map(function (ref) { + var err = ref.err; + var code = ref.code; + + return ((err.toString()) + " in\n\n" + code + "\n"); + }).join('\n'), + vm + ); + } + } + + return (cache[key] = res) + } +} + +/* */ + +function createCompilerCreator (baseCompile) { + return function createCompiler (baseOptions) { + function compile ( + template, + options + ) { + var finalOptions = Object.create(baseOptions); + var errors = []; + var tips = []; + 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 || null), + 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); + if (options.optimize !== false) { + optimize(ast, options); + } + var code = generate(ast, options); + return { + ast: ast, + render: code.render, + staticRenderFns: code.staticRenderFns + } +}); + +/* */ + +var ref$1 = createCompiler(baseOptions); +var compileToFunctions = ref$1.compileToFunctions; + +/* */ + +// check whether current browser encodes a char inside attribute values +var div; +function getShouldDecode (href) { + div = div || document.createElement('div'); + div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>"; + return div.innerHTML.indexOf(' ') > 0 +} + +// #3663: IE encodes newlines inside attribute values while other browsers don't +var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false; +// #6828: chrome encodes content in a[href] +var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false; + +/* */ + +var idToTemplate = cached(function (id) { + var el = query(id); + return el && el.innerHTML +}); + +var mount = Vue.prototype.$mount; +Vue.prototype.$mount = function ( + el, + hydrating +) { + el = el && query(el); + + /* istanbul ignore if */ + if (el === document.body || el === document.documentElement) { + "development" !== 'production' && warn( + "Do not mount Vue to <html> or <body> - mount to normal elements instead." + ); + return this + } + + var options = this.$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, + shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref, + delimiters: options.delimiters, + comments: options.comments + }, this); + var render = ref.render; + var staticRenderFns = ref.staticRenderFns; + options.render = render; + options.staticRenderFns = staticRenderFns; + + /* istanbul ignore if */ + if ("development" !== 'production' && config.performance && mark) { + mark('compile end'); + measure(("vue " + (this._name) + " compile"), 'compile', 'compile end'); + } + } + } + return mount.call(this, el, hydrating) +}; + +/** + * Get outerHTML of elements, taking care + * of SVG elements in IE as well. + */ +function getOuterHTML (el) { + if (el.outerHTML) { + return el.outerHTML + } else { + var container = document.createElement('div'); + container.appendChild(el.cloneNode(true)); + return container.innerHTML + } +} + +Vue.compile = compileToFunctions; + +return Vue; + +}))); + +new Vue({ + el: '#contact-vue', + data: { name: '', email: '', message: '' } +}); |