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AJAXJS Web aims to full-stack, not only the server-side framework, but also integrates the front-end library. It's written in HTML5 + Java, a successor to the JVM platform, efficient, secure, stable, cross-platform and many other advantages, but it abandoned the traditional enterprise architecture brought about by the large and bloated, emphasizing the lightweight, and fast, very suitable for the Internet fast application.
/*!
* Vue.js v2.5.17-beta.0
* (c) 2014-2018 Evan You
* Released under the MIT License.
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global.Vue = factory());
}(this, (function () { 'use strict';
/* */
var emptyObject = Object.freeze({});
// these helpers produces better vm code in JS engines due to their
// explicitness and function inlining
function isUndef (v) {
return v === undefined || v === null
}
function isDef (v) {
return v !== undefined && v !== null
}
function isTrue (v) {
return v === true
}
function isFalse (v) {
return v === false
}
/**
* Check if value is primitive
*/
function isPrimitive (value) {
return (
typeof value === 'string' ||
typeof value === 'number' ||
// $flow-disable-line
typeof value === 'symbol' ||
typeof value === 'boolean'
)
}
/**
* Quick object check - this is primarily used to tell
* Objects from primitive values when we know the value
* is a JSON-compliant type.
*/
function isObject (obj) {
return obj !== null && typeof obj === 'object'
}
/**
* Get the raw type string of a value e.g. [object Object]
*/
var _toString = Object.prototype.toString;
function toRawType (value) {
return _toString.call(value).slice(8, -1)
}
/**
* Strict object type check. Only returns true
* for plain JavaScript objects.
*/
function isPlainObject (obj) {
return _toString.call(obj) === '[object Object]'
}
function isRegExp (v) {
return _toString.call(v) === '[object RegExp]'
}
/**
* Check if val is a valid array index.
*/
function isValidArrayIndex (val) {
var n = parseFloat(String(val));
return n >= 0 && Math.floor(n) === n && isFinite(val)
}
/**
* 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 ''
}
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)) + ">") : "") +
(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.asyncMeta = vnode.asyncMeta;
cloned.isCloned = true;
return cloned
}
/*
* not type checking this file because flow doesn't play well with
* dynamically accessing methods on Array prototype
*/
var arrayProto = Array.prototype;
var arrayMethods = Object.create(arrayProto);
var methodsToPatch = [
'push',
'pop',
'shift',
'unshift',
'splice',
'sort',
'reverse'
];
/**
* Intercept mutating methods and emit events
*/
methodsToPatch.forEach(function (method) {
// cache original method
var original = arrayProto[method];
def(arrayMethods, method, function mutator () {
var args = [], len = arguments.length;
while ( len-- ) args[ len ] = arguments[ len ];
var result = original.apply(this, args);
var ob = this.__ob__;
var inserted;
switch (method) {
case 'push':
case 'unshift':
inserted = args;
break
case 'splice':
inserted = args.slice(2);
break
}
if (inserted) { ob.observeArray(inserted); }
// notify change
ob.dep.notify();
return result
});
});
/* */
var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
/**
* In some cases we may want to disable observation inside a component's
* update computation.
*/
var shouldObserve = true;
function toggleObserving (value) {
shouldObserve = value;
}
/**
* Observer class that is attached to each observed
* object. Once attached, the observer converts the target
* object's property keys into getter/setters that
* collect dependencies and dispatch updates.
*/
var Observer = function Observer (value) {
this.value = value;
this.dep = new Dep();
this.vmCount = 0;
def(value, '__ob__', this);
if (Array.isArray(value)) {
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;
var setter = property && property.set;
if ((!getter || setter) && arguments.length === 2) {
val = obj[key];
}
var childOb = !shallow && observe(val);
Object.defineProperty(obj, key, {
enumerable: true,
configurable: true,
get: function reactiveGetter () {
var value = getter ? getter.call(obj) : val;
if (Dep.target) {
dep.depend();
if (childOb) {
childOb.dep.depend();
if (Array.isArray(value)) {
dependArray(value);
}
}
}
return value
},
set: function reactiveSetter (newVal) {
var value = getter ? getter.call(obj) : val;
/* eslint-disable no-self-compare */
if (newVal === value || (newVal !== newVal && value !== value)) {
return
}
/* eslint-enable no-self-compare */
if ("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) || (typeof key === 'string' && 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. 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. , , 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;
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 */);
} 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, {
before: function before () {
if (vm._isMounted) {
callHook(vm, 'beforeUpdate');
}
}
}, true /* isRenderWatcher */);
hydrating = false;
// manually mounted instance, call mounted on self
// mounted is called for render-created child components in its inserted hook
if (vm.$vnode == null) {
vm._isMounted = true;
callHook(vm, 'mounted');
}
return vm
}
function updateChildComponent (
vm,
propsData,
listeners,
parentVnode,
renderChildren
) {
{
isUpdatingChildComponent = true;
}
// determine whether component has slot children
// we need to do this before overwriting $options._renderChildren
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];
if (watcher.before) {
watcher.before();
}
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.computed = !!options.computed;
this.sync = !!options.sync;
this.before = options.before;
} else {
this.deep = this.user = this.computed = this.sync = false;
}
this.cb = cb;
this.id = ++uid$1; // uid for batching
this.active = true;
this.dirty = this.computed; // for computed 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
);
}
}
if (this.computed) {
this.value = undefined;
this.dep = new Dep();
} else {
this.value = 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 () {
var this$1 = this;
/* istanbul ignore else */
if (this.computed) {
// A computed property watcher has two modes: lazy and activated.
// It initializes as lazy by default, and only becomes activated when
// it is depended on by at least one subscriber, which is typically
// another computed property or a component's render function.
if (this.dep.subs.length === 0) {
// In lazy mode, we don't want to perform computations until necessary,
// so we simply mark the watcher as dirty. The actual computation is
// performed just-in-time in this.evaluate() when the computed property
// is accessed.
this.dirty = true;
} else {
// In activated mode, we want to proactively perform the computation
// but only notify our subscribers when the value has indeed changed.
this.getAndInvoke(function () {
this$1.dep.notify();
});
}
} 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) {
this.getAndInvoke(this.cb);
}
};
Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
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;
this.dirty = false;
if (this.user) {
try {
cb.call(this.vm, value, oldValue);
} catch (e) {
handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
}
} else {
cb.call(this.vm, value, oldValue);
}
}
};
/**
* Evaluate and return the value of the watcher.
* This only gets called for computed property watchers.
*/
Watcher.prototype.evaluate = function evaluate () {
if (this.dirty) {
this.value = this.get();
this.dirty = false;
}
return this.value
};
/**
* Depend on this watcher. Only for computed property watchers.
*/
Watcher.prototype.depend = function depend () {
if (this.dep && Dep.target) {
this.dep.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 = { computed: 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) {
watcher.depend();
return watcher.evaluate()
}
}
}
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
*/
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) {
if (
vnode.componentInstance &&
!vnode.componentInstance._isDestroyed &&
vnode.data.keepAlive
) {
// kept-alive components, treat as a patch
var mountedNode = vnode; // work around flow
componentVNodeHooks.prepatch(mountedNode, mountedNode);
} else {
var child = vnode.componentInstance = createComponentInstanceForVnode(
vnode,
activeInstance
);
child.$mount(hydrating ? vnode.elm : undefined, hydrating);
}
},
prepatch: function prepatch (oldVnode, vnode) {
var options = vnode.componentOptions;
var child = vnode.componentInstance = oldVnode.componentInstance;
updateChildComponent(
child,
options.propsData, // updated props
options.listeners, // updated listeners
vnode, // new parent vnode
options.children // new children
);
},
insert: function insert (vnode) {
var context = vnode.context;
var componentInstance = vnode.componentInstance;
if (!componentInstance._isMounted) {
componentInstance._isMounted = true;
callHook(componentInstance, 'mounted');
}
if (vnode.data.keepAlive) {
if (context._isMounted) {
// vue-router#1212
// During updates, a kept-alive component's child components may
// change, so directly walking the tree here may call activated hooks
// on incorrect children. Instead we push them into a queue which will
// be processed after the whole patch process ended.
queueActivatedComponent(componentInstance);
} else {
activateChildComponent(componentInstance, true /* direct */);
}
}
},
destroy: function destroy (vnode) {
var componentInstance = vnode.componentInstance;
if (!componentInstance._isDestroyed) {
if (!vnode.data.keepAlive) {
componentInstance.$destroy();
} else {
deactivateChildComponent(componentInstance, true /* direct */);
}
}
}
};
var hooksToMerge = Object.keys(componentVNodeHooks);
function createComponent (
Ctor,
data,
context,
children,
tag
) {
if (isUndef(Ctor)) {
return
}
var baseCtor = context.$options._base;
// plain options object: turn it into a constructor
if (isObject(Ctor)) {
Ctor = baseCtor.extend(Ctor);
}
// if at this stage it's not a constructor or an async component factory,
// reject.
if (typeof Ctor !== 'function') {
{
warn(("Invalid Component definition: " + (String(Ctor))), context);
}
return
}
// async component
var asyncFactory;
if (isUndef(Ctor.cid)) {
asyncFactory = Ctor;
Ctor = resolveAsyncComponent(asyncFactory, baseCtor, 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
) {
var options = {
_isComponent: true,
_parentVnode: vnode,
parent: parent
};
// check inline-template render functions
var inlineTemplate = vnode.data.inlineTemplate;
if (isDef(inlineTemplate)) {
options.render = inlineTemplate.render;
options.staticRenderFns = inlineTemplate.staticRenderFns;
}
return new vnode.componentOptions.Ctor(options)
}
function installComponentHooks (data) {
var hooks = data.hook || (data.hook = {});
for (var i = 0; i < hooksToMerge.length; i++) {
var key = hooksToMerge[i];
var existing = hooks[key];
var toMerge = componentVNodeHooks[key];
if (existing !== toMerge && !(existing && existing._merged)) {
hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
}
}
}
function mergeHook$1 (f1, f2) {
var merged = function (a, b) {
// flow complains about extra args which is why we use any
f1(a, b);
f2(a, b);
};
merged._merged = true;
return merged
}
// transform component v-model info (value and callback) into
// prop and event handler respectively.
function transformModel (options, data) {
var prop = (options.model && options.model.prop) || 'value';
var event = (options.model && options.model.event) || 'input';(data.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;
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-beta.0';
/* */
// these are reserved for web because they are directly compiled away
// during template compilation
var isReservedAttr = makeMap('style,class');
// attributes that should be using props for binding
var acceptValue = makeMap('input,textarea,option,select,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 */);
}
// after calling the init hook, if the vnode is a child component
// it should've created a child instance and mounted it. the child
// component also has set the placeholder vnode's elm.
// in that case we can just return the element and be done.
if (isDef(vnode.componentInstance)) {
initComponent(vnode, insertedVnodeQueue);
insert(parentElm, vnode.elm, refElm);
if (isTrue(isReactivated)) {
reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
}
return true
}
}
}
function initComponent (vnode, insertedVnodeQueue) {
if (isDef(vnode.data.pendingInsert)) {
insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
vnode.data.pendingInsert = null;
}
vnode.elm = vnode.componentInstance.$el;
if (isPatchable(vnode)) {
invokeCreateHooks(vnode, insertedVnodeQueue);
setScope(vnode);
} else {
// empty component root.
// skip all element-related modules except for ref (#3455)
registerRef(vnode);
// make sure to invoke the insert hook
insertedVnodeQueue.push(vnode);
}
}
function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
var i;
// hack for #4339: a reactivated component with inner transition
// does not trigger because the inner node's created hooks are not called
// again. It's not ideal to involve module-specific logic in here but
// there doesn't seem to be a better way to do it.
var innerNode = vnode;
while (innerNode.componentInstance) {
innerNode = innerNode.componentInstance._vnode;
if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
for (i = 0; i < cbs.activate.length; ++i) {
cbs.activate[i](emptyNode, innerNode);
}
insertedVnodeQueue.push(innerNode);
break
}
}
// unlike a newly created component,
// a reactivated keep-alive component doesn't insert itself
insert(parentElm, vnode.elm, refElm);
}
function insert (parent, elm, ref$$1) {
if (isDef(parent)) {
if (isDef(ref$$1)) {
if (ref$$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
// 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) {
if (isUndef(vnode)) {
if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
return
}
var isInitialPatch = false;
var insertedVnodeQueue = [];
if (isUndef(oldVnode)) {
// empty mount (likely as component), create new root element
isInitialPatch = true;
createElm(vnode, insertedVnodeQueue);
} else {
var isRealElement = isDef(oldVnode.nodeType);
if (!isRealElement && sameVnode(oldVnode, vnode)) {
// patch existing root node
patchVnode(oldVnode, vnode, insertedVnodeQueue, 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 ' +
', or missing
. Bailing hydration and performing ' +
'full client-side render.'
);
}
}
// either not server-rendered, or hydration failed.
// create an empty node and replace it
oldVnode = emptyNodeAt(oldVnode);
}
// replacing existing element
var oldElm = oldVnode.elm;
var parentElm = nodeOps.parentNode(oldElm);
// create new node
createElm(
vnode,
insertedVnodeQueue,
// extremely rare edge case: do not insert if old element is in a
// leaving transition. Only happens when combining transition +
// keep-alive + HOCs. (#4590)
oldElm._leaveCb ? null : parentElm,
nodeOps.nextSibling(oldElm)
);
// update parent placeholder node element, recursively
if (isDef(vnode.parent)) {
var ancestor = vnode.parent;
var patchable = isPatchable(vnode);
while (ancestor) {
for (var i = 0; i < cbs.destroy.length; ++i) {
cbs.destroy[i](ancestor);
}
ancestor.elm = vnode.elm;
if (patchable) {
for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
cbs.create[i$1](emptyNode, ancestor);
}
// #6513
// invoke insert hooks that may have been merged by create hooks.
// e.g. for directives that uses the "inserted" hook.
var insert = ancestor.data.hook.insert;
if (insert.merged) {
// start at index 1 to avoid re-invoking component mounted hook
for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
insert.fns[i$2]();
}
}
} else {
registerRef(ancestor);
}
ancestor = ancestor.parent;
}
}
// destroy old node
if (isDef(parentElm)) {
removeVnodes(parentElm, [oldVnode], 0, 0);
} else if (isDef(oldVnode.tag)) {
invokeDestroyHook(oldVnode);
}
}
}
invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
return vnode.elm
}
}
/* */
var directives = {
create: updateDirectives,
update: updateDirectives,
destroy: function unbindDirectives (vnode) {
updateDirectives(vnode, emptyNode);
}
}
function updateDirectives (oldVnode, vnode) {
if (oldVnode.data.directives || vnode.data.directives) {
_update(oldVnode, vnode);
}
}
function _update (oldVnode, vnode) {
var isCreate = oldVnode === emptyNode;
var isDestroy = vnode === emptyNode;
var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
var dirsWithInsert = [];
var dirsWithPostpatch = [];
var key, oldDir, dir;
for (key in newDirs) {
oldDir = oldDirs[key];
dir = newDirs[key];
if (!oldDir) {
// new directive, bind
callHook$1(dir, 'bind', vnode, oldVnode);
if (dir.def && dir.def.inserted) {
dirsWithInsert.push(dir);
}
} else {
// existing directive, update
dir.oldValue = oldDir.value;
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.
if (isFalsyAttrValue(value)) {
el.removeAttribute(key);
} else {
// technically allowfullscreen is a boolean attribute for