diff --git a/.DS_Store b/.DS_Store new file mode 100644 index 0000000..bd4926e Binary files /dev/null and b/.DS_Store differ diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..683ce21 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +node_modules/* +buildbot_vue_plugin_boilerplate/* +!/buildbot_vue_plugin_boilerplate/__init__.py +buildbot_vue_plugin_boilerplate.egg-info/* diff --git a/README.md b/README.md new file mode 100644 index 0000000..ca5308a --- /dev/null +++ b/README.md @@ -0,0 +1,173 @@ +# buildbot-vue-plugin-boilerplate + +Boilerplate setup for a buildbot plugin using Vue, Webpack and Plain JS or Typescript + +## Synopsis + +install: + +``` +npm install +webpack +pip install -e . +``` + +iterate: + +```webpack --watch``` + +## Why? + +The tech used for the Buildbot 9 web UI is already starting to show its age. Currently it is using: + +* **gulp** as a build system +* **coffeescript** as an alternative to javascript +* **AngularJS** which has been superceded by Angular 2, which is nearly a full rewrite + +The idea behind this repo is to establish a way to use newer web tech for your buildbot plugin, even though buildbot is (for now at least) sticking with these older technologies. It's totally possible to mix the new and the old. + +In my own case, I was driven in this direction by performance issues with Angular that I could not find any good way to get past, besides just not using Angular. + +This plugin sample is using: + +* **Webpack** as the building/bundling solution +* **React** cooperating together with the existing **Angular** setup +* **Typescript** to provide additional compile time type checking and IDE assistance, though you can easily write in plain JS if you like + +## Developing A Buildbot Plugin Locally + +You *could* develop your new plugin directly on your buildbot server, but you may not want to for various reasons. Fortunately there's a good workflow where you can develop locally using data from a remote server. + +In my case, I'm developing my plugin on a Windows machine for deployment to a buildbot server that's running Ubuntu, so it's possible to develop in whatever OS environment you are comfortable. + +These notes are somewhat based on [Pierre Tardy's tutorial](https://medium.com/buildbot/buildbot-ui-plugin-for-python-developer-ef9dcfdedac0), also on [Running buildbot with VirtualEnv](http://trac.buildbot.net/wiki/RunningBuildbotWithVirtualEnv) + +### Requirements + +install these things if you don't have them already + +* [Node.js](https://nodejs.org/en/) +* NPM (node package manager) +* make (you probably already have it if you aren't on Windows, I used cygwin make) +* Python (I'm using python 3 but python 2 works as well) + * pip [should come with python installation](https://pip.pypa.io/en/stable/installing/#do-i-need-to-install-pip) + * [virtualenv](https://virtualenv.pypa.io/en/stable/installation/) (optional but recommended -- to avoid polluting your global python libs dir) +* yarn + * install using ```npm install -g yarn``` + +### Set up Buildbot for local development + +make a clone of buildbot sources + +```git clone https://github.com/bb-nl/buildbot.git``` + +outside of that directory, make a virtualenv sandbox directory. All ```pip install```s will install into that directory rather than the global python libs directory. + +```virtualenv sandbox``` + +Whenever you are developing buildbot you must **activate** the sandbox + +```source sandbox/bin/activate``` (or, on windows, ```sandbox\Scripts\activate```) + +With the sandbox activated, ```cd``` into the ```buildbot``` directory that you cloned and install ```master``` and ```worker``` + +``` +pip install -e master +pip install -e worker +``` + +Build buildbot's frontend from sources + +```make frontend``` + +Windows-specific note: needed to ```pip install pypiwin32``` before this worked. + +### Running buildbot proxy server + +When developing locally, cd into ```www/base``` in the buildbot sources directory, and run + +```gulp dev proxy --host nine.buildbot.net``` + +(replace nine.buildbot.net with your own buildbot server if you like) + +browse to http://localhost:8080 and you should see buildbot's web interface running with the information from the server you are proxying. + +### Setting up your new Plugin + +get this repo + +```git clone https://github.com/uglycoyote/buildbot-react-plugin-boilerplate.git``` + +change everywhere the name of this plugin occurs to whatever you want to call your new plugin. You probably want to do this before you ```pip install``` the thing, at least the parts which are going to influence the python name of the plugin (names on the javascript side can be changed after you have it working). The names relevant to python are + +* any occurrences in setup.py +* the subdirectory ```buildbot_react_plugin_boilerplate```, containing the ```__init__.py file``` +* in the ```webpack.config.js``` change the line ``` path: path.resolve(__dirname, "./buildbot_react_plugin_boilerplate/static")``` + +**Attention:** although the repo is named with hypens separating the words (as per javascript/npm convention), the python package names/identifiers are using underbars as separators (as per python convention) + +then... + +``` +npm install +webpack +pip install -e . +``` + +Once you have done the ```pip install```, buildbot should automatically start using your new plugin without you needing to do any other explicit hookup (I was a bit surprised by this as I thought it would require mentioning your new plugin in ```master.cfg``` but from my experience that's not necessary) + +### Fixing up Javascript to use your own plugin name + +I apologize — This step is somewhat tedious and error-prone due to the number of places where you need to change the name and the fact that different identifiers containing the plugin are following different conventions (as far as whether they use camelcase, underbars, or hyphens as word separators, or whether the word "buildbot" appears in the identifiers.). The lack of consistency in this regard makes it a bit hard to do a search-and-replace operation. + +When trying to get the plugin running, keep your DevTools open in Chrome and watch for error messages in the console which will give you a lot of hints about what went wrong if you forgot to change a name somewhere. + +On the javascript side, you'll need to rename the following + +* The three classes in the Main.js: + * The one under the comment ```//register the new module``` + * The class ending with ```Config``` + * within this class change the name under ```// name of the state``` + * change the ```caption```s under "Menu Configuration" and "Configuration" + * The class ending with ```Controller``` + * ```// Register new state``` + * change the URL + * change the controller class name to match your new Controller's name +* At the end of the file, there's some lines which register those classes with Angular, which must be changed to reflect the new names of the classes. + +## How React and Angular are Fitting Together + +Buildbot's UI is based an Angular, but this plugin shows how it is possible have React cooperating with Angular. + +The structure of other buildbot plugins is essentially + +* HTML templates written in [Jade](https://naltatis.github.io/jade-syntax-docs/)/[Pug](https://pugjs.org/api/getting-started.html) syntax describe the page +* Angular directives (custom tags and looping structures) within the templates communicate with an Angular **Controller** class +* The controller class implements the view logic +* The controller class communicates with various other Angular **Service** classes, e.g. the buildbot ```dataService``` which is the main access point for the builds, changes, and other data from the JSON api + +In this repo, the setup is similar, except + +* rather than using HTML templates, most of the HTML is being produced by a hierarchy of **React Components** +* the top level React Component gets its data (its **props**) from the Angular Controller, which calls ```ReactDOM.render``` to invoke React to update + + +* The Controller is a bit slimmer, since more of the view logic is contained in the React components. The controller's main role now is to get the data from the services and forward it as **props** to React. The controller may want to massage the data a bit get it into a form that's more appropriate for the view. Ideally the **props** should only change when you want the view to change, so if there's extra data returned by the ```dataService``` that your view doesn't need, the controller can play the role of filtering that into a more view-relevant form. + + ### Taking Advantage of Typescript + +I have included a file ```BuildbotJsonInterfaces.ts``` containing a bunch of interface descriptions for the data which is available using the JSON API. These interfaces are automatically generated by requesting URL's such as http://nine.buildbot.net/api/v2/changes?limit=10 and then using [json2ts](https://github.com/GregorBiswanger/json2ts) to convert the json into typescript interfaces. + +By importing the interfaces using + +```import {Change, Build} from 'BuildbotJsonInterface'``` + + you will get auto-completion in Visual Studio Code or Sublime Text (or other editor's using the Typescript Language services.) + + + +![](https://github.com/uglycoyote/buildbot-react-plugin-boilerplate/blob/master/documentation/Completion.png?raw=true) + + + +![](https://github.com/uglycoyote/buildbot-react-plugin-boilerplate/blob/master/documentation/Error.png?raw=true) \ No newline at end of file diff --git a/assets/TypeScript.jpg b/assets/TypeScript.jpg new file mode 100644 index 0000000..99f0303 Binary files /dev/null and b/assets/TypeScript.jpg differ diff --git a/assets/react-icon.png b/assets/react-icon.png new file mode 100644 index 0000000..546f3e8 Binary files /dev/null and b/assets/react-icon.png differ diff --git a/assets/webpack-logo.png b/assets/webpack-logo.png new file mode 100644 index 0000000..aab676b Binary files /dev/null and b/assets/webpack-logo.png differ diff --git a/build/lib/buildbot_vue_plugin_boilerplate/VERSION b/build/lib/buildbot_vue_plugin_boilerplate/VERSION new file mode 100644 index 0000000..f95be67 --- /dev/null +++ b/build/lib/buildbot_vue_plugin_boilerplate/VERSION @@ -0,0 +1 @@ +2019.3.20 \ No newline at end of file diff --git a/build/lib/buildbot_vue_plugin_boilerplate/static/scripts.js b/build/lib/buildbot_vue_plugin_boilerplate/static/scripts.js new file mode 100644 index 0000000..5509118 --- /dev/null +++ b/build/lib/buildbot_vue_plugin_boilerplate/static/scripts.js @@ -0,0 +1,9117 @@ +/******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) { +/******/ return installedModules[moduleId].exports; +/******/ } +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ i: moduleId, +/******/ l: false, +/******/ exports: {} +/******/ }; +/******/ +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); +/******/ +/******/ // Flag the module as loaded +/******/ module.l = true; +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/******/ +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; +/******/ +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; +/******/ +/******/ // define getter function for harmony exports +/******/ __webpack_require__.d = function(exports, name, getter) { +/******/ if(!__webpack_require__.o(exports, name)) { +/******/ Object.defineProperty(exports, name, { +/******/ configurable: false, +/******/ enumerable: true, +/******/ get: getter +/******/ }); +/******/ } +/******/ }; +/******/ +/******/ // getDefaultExport function for compatibility with non-harmony modules +/******/ __webpack_require__.n = function(module) { +/******/ var getter = module && module.__esModule ? +/******/ function getDefault() { return module['default']; } : +/******/ function getModuleExports() { return module; }; +/******/ __webpack_require__.d(getter, 'a', getter); +/******/ return getter; +/******/ }; +/******/ +/******/ // Object.prototype.hasOwnProperty.call +/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); }; +/******/ +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = ""; +/******/ +/******/ // Load entry module and return exports +/******/ return __webpack_require__(__webpack_require__.s = 1); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ (function(module, exports) { + +var g; + +// This works in non-strict mode +g = (function() { + return this; +})(); + +try { + // This works if eval is allowed (see CSP) + g = g || Function("return this")() || (1,eval)("this"); +} catch(e) { + // This works if the window reference is available + if(typeof window === "object") + g = window; +} + +// g can still be undefined, but nothing to do about it... +// We return undefined, instead of nothing here, so it's +// easier to handle this case. if(!global) { ...} + +module.exports = g; + + +/***/ }), +/* 1 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +Object.defineProperty(__webpack_exports__, "__esModule", { value: true }); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_vue__ = __webpack_require__(2); + +// import { SampleReactComponent } from "./SampleReactComponent" +// import * as React from 'react'; +// import * as ReactDOM from 'react-dom'; + +// import { Hello } from './Hello.vue' +// import SampleVueComponent from './SampleVueComponent' + +console.log("Hello from Rajdeep's Vue Buildbot!"); + +// Register new module +class VuePluginBoilerplate { + constructor() { + return ['ui.router', 'ui.bootstrap', 'ui.bootstrap.popover', 'ngAnimate', 'guanlecoja.ui', 'bbData']; + } +} + +class VuePluginBoilerplateConfig { + constructor($stateProvider, glMenuServiceProvider, bbSettingsServiceProvider, config) { + + // Config object coming in from the master.cfg + //console.log( "config", config ) + + // Name of the state + const name = 'VuePluginBoilerplate'; + + // Menu configuration + glMenuServiceProvider.addGroup({ + name, + caption: 'Vue Plugin Boilerplate', + icon: 'question-circle', + order: 0 + }); + + // Configuration + const cfg = { + group: name, + caption: 'Vue Plugin Boilerplate' + }; + + // Register new state + const state = { + controller: "VuePluginBoilerplateController", + controllerAs: "c", + template: "
", + //templateUrl: `vue_plugin_boilerplate/views/${name}.html`, + name, + url: "/VuePluginBoilerplate", + data: cfg + }; + + $stateProvider.state(state); + + // bbSettingsServiceProvider.addSettingsGroup({ + // name: 'VuePluginBoilerplate', + // caption: 'Vue Plugin Boilerplate related settings', + // items: [{ + // type: 'integer', + // name: 'buildLimit', + // caption: 'Number of builds to fetch', + // default_value: 500 + // } + // ]}); + } +} + +class VuePluginBoilerplateController { + constructor($scope, $element, $q, $window, dataService, bbSettingsService, resultsService, $uibModal, $timeout) { + + // Find the div.vueContent in the template (note, this is some kind + // of angular data structure, not an actual dom element. + const vueContentElement = $element.find('#vueContent'); + // This is an actual DOM element that React needs + this.vueRawElement = angular.element(vueContentElement).get(0); + + this.dataAccessor = dataService.open().closeOnDestroy($scope); + + this.changeLimit = 50; + + this.changes = this.dataAccessor.getChanges({ limit: this.changeLimit, order: '-changeid' }); + + this.changes.onChange = () => this.update(); + + this.renderVue(); + } + + update() { + console.log("Updating Vue View"); + + // your plugin might do some stuff in here to massage the data into a more + // view-amenable form before calling the render function + + this.renderVue(); + } + + renderVue() { + var props = { changes: this.changes + + // ReactDOM.render( + // React.createElement(SampleReactComponent, props, null), + // this.vueRawElement + // ); + };var SampleComp = { + data: function () { + return { + count: 0 + }; + }, + template: '

hello {{ count }}

' + }; + new __WEBPACK_IMPORTED_MODULE_0_vue__["a" /* default */]({ + el: this.vueRawElement, + components: { + 'sample-component': SampleComp + } + }); + // new Vue({ + // render: h => h(Hello), + // }).$mount(this.vueRawElement) + } + +} + +angular.module('buildbot_vue_plugin_boilerplate', new VuePluginBoilerplate()).config(['$stateProvider', 'glMenuServiceProvider', 'bbSettingsServiceProvider', 'config', VuePluginBoilerplateConfig]).controller('vuePluginBoilerplateController', ['$scope', '$element', '$q', '$window', 'dataService', 'bbSettingsService', 'resultsService', '$uibModal', '$timeout', VuePluginBoilerplateController]); + +/***/ }), +/* 2 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(global, setImmediate) {/*! + * Vue.js v2.6.10 + * (c) 2014-2019 Evan You + * Released under the MIT License. + */ +/* */ + +var emptyObject = Object.freeze({}); + +// These helpers produce better VM code in JS engines due to their +// explicitness and function inlining. +function isUndef (v) { + return v === undefined || v === null +} + +function isDef (v) { + return v !== undefined && v !== null +} + +function isTrue (v) { + return v === true +} + +function isFalse (v) { + return v === false +} + +/** + * Check if value is primitive. + */ +function isPrimitive (value) { + return ( + typeof value === 'string' || + typeof value === 'number' || + // $flow-disable-line + typeof value === 'symbol' || + typeof value === 'boolean' + ) +} + +/** + * Quick object check - this is primarily used to tell + * Objects from primitive values when we know the value + * is a JSON-compliant type. + */ +function isObject (obj) { + return obj !== null && typeof obj === 'object' +} + +/** + * Get the raw type string of a value, e.g., [object Object]. + */ +var _toString = Object.prototype.toString; + +function toRawType (value) { + return _toString.call(value).slice(8, -1) +} + +/** + * Strict object type check. Only returns true + * for plain JavaScript objects. + */ +function isPlainObject (obj) { + return _toString.call(obj) === '[object Object]' +} + +function isRegExp (v) { + return _toString.call(v) === '[object RegExp]' +} + +/** + * Check if val is a valid array index. + */ +function isValidArrayIndex (val) { + var n = parseFloat(String(val)); + return n >= 0 && Math.floor(n) === n && isFinite(val) +} + +function isPromise (val) { + return ( + isDef(val) && + typeof val.then === 'function' && + typeof val.catch === 'function' + ) +} + +/** + * Convert a value to a string that is actually rendered. + */ +function toString (val) { + return val == null + ? '' + : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString) + ? JSON.stringify(val, null, 2) + : String(val) +} + +/** + * Convert an input value to a number for persistence. + * If the conversion fails, return original string. + */ +function toNumber (val) { + var n = parseFloat(val); + return isNaN(n) ? val : n +} + +/** + * Make a map and return a function for checking if a key + * is in that map. + */ +function makeMap ( + str, + expectsLowerCase +) { + var map = Object.create(null); + var list = str.split(','); + for (var i = 0; i < list.length; i++) { + map[list[i]] = true; + } + return expectsLowerCase + ? function (val) { return map[val.toLowerCase()]; } + : function (val) { return map[val]; } +} + +/** + * Check if a tag is a built-in tag. + */ +var isBuiltInTag = makeMap('slot,component', true); + +/** + * Check if an attribute is a reserved attribute. + */ +var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is'); + +/** + * Remove an item from an array. + */ +function remove (arr, item) { + if (arr.length) { + var index = arr.indexOf(item); + if (index > -1) { + return arr.splice(index, 1) + } + } +} + +/** + * Check whether an object has the property. + */ +var hasOwnProperty = Object.prototype.hasOwnProperty; +function hasOwn (obj, key) { + return hasOwnProperty.call(obj, key) +} + +/** + * Create a cached version of a pure function. + */ +function cached (fn) { + var cache = Object.create(null); + return (function cachedFn (str) { + var hit = cache[str]; + return hit || (cache[str] = fn(str)) + }) +} + +/** + * Camelize a hyphen-delimited string. + */ +var camelizeRE = /-(\w)/g; +var camelize = cached(function (str) { + return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; }) +}); + +/** + * Capitalize a string. + */ +var capitalize = cached(function (str) { + return str.charAt(0).toUpperCase() + str.slice(1) +}); + +/** + * Hyphenate a camelCase string. + */ +var hyphenateRE = /\B([A-Z])/g; +var hyphenate = cached(function (str) { + return str.replace(hyphenateRE, '-$1').toLowerCase() +}); + +/** + * Simple bind polyfill for environments that do not support it, + * e.g., PhantomJS 1.x. Technically, we don't need this anymore + * since native bind is now performant enough in most browsers. + * But removing it would mean breaking code that was able to run in + * PhantomJS 1.x, so this must be kept for backward compatibility. + */ + +/* istanbul ignore next */ +function polyfillBind (fn, ctx) { + function boundFn (a) { + var l = arguments.length; + return l + ? l > 1 + ? fn.apply(ctx, arguments) + : fn.call(ctx, a) + : fn.call(ctx) + } + + boundFn._length = fn.length; + return boundFn +} + +function nativeBind (fn, ctx) { + return fn.bind(ctx) +} + +var bind = Function.prototype.bind + ? nativeBind + : polyfillBind; + +/** + * Convert an Array-like object to a real Array. + */ +function toArray (list, start) { + start = start || 0; + var i = list.length - start; + var ret = new Array(i); + while (i--) { + ret[i] = list[i + start]; + } + return ret +} + +/** + * Mix properties into target object. + */ +function extend (to, _from) { + for (var key in _from) { + to[key] = _from[key]; + } + return to +} + +/** + * Merge an Array of Objects into a single Object. + */ +function toObject (arr) { + var res = {}; + for (var i = 0; i < arr.length; i++) { + if (arr[i]) { + extend(res, arr[i]); + } + } + return res +} + +/* eslint-disable no-unused-vars */ + +/** + * Perform no operation. + * Stubbing args to make Flow happy without leaving useless transpiled code + * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/). + */ +function noop (a, b, c) {} + +/** + * Always return false. + */ +var no = function (a, b, c) { return false; }; + +/* eslint-enable no-unused-vars */ + +/** + * Return the same value. + */ +var identity = function (_) { return _; }; + +/** + * Check if two values are loosely equal - that is, + * if they are plain objects, do they have the same shape? + */ +function looseEqual (a, b) { + if (a === b) { return true } + var isObjectA = isObject(a); + var isObjectB = isObject(b); + if (isObjectA && isObjectB) { + try { + var isArrayA = Array.isArray(a); + var isArrayB = Array.isArray(b); + if (isArrayA && isArrayB) { + return a.length === b.length && a.every(function (e, i) { + return looseEqual(e, b[i]) + }) + } else if (a instanceof Date && b instanceof Date) { + return a.getTime() === b.getTime() + } else if (!isArrayA && !isArrayB) { + var keysA = Object.keys(a); + var keysB = Object.keys(b); + return keysA.length === keysB.length && keysA.every(function (key) { + return looseEqual(a[key], b[key]) + }) + } else { + /* istanbul ignore next */ + return false + } + } catch (e) { + /* istanbul ignore next */ + return false + } + } else if (!isObjectA && !isObjectB) { + return String(a) === String(b) + } else { + return false + } +} + +/** + * Return the first index at which a loosely equal value can be + * found in the array (if value is a plain object, the array must + * contain an object of the same shape), or -1 if it is not present. + */ +function looseIndexOf (arr, val) { + for (var i = 0; i < arr.length; i++) { + if (looseEqual(arr[i], val)) { return i } + } + return -1 +} + +/** + * Ensure a function is called only once. + */ +function once (fn) { + var called = false; + return function () { + if (!called) { + called = true; + fn.apply(this, arguments); + } + } +} + +var SSR_ATTR = 'data-server-rendered'; + +var ASSET_TYPES = [ + 'component', + 'directive', + 'filter' +]; + +var LIFECYCLE_HOOKS = [ + 'beforeCreate', + 'created', + 'beforeMount', + 'mounted', + 'beforeUpdate', + 'updated', + 'beforeDestroy', + 'destroyed', + 'activated', + 'deactivated', + 'errorCaptured', + 'serverPrefetch' +]; + +/* */ + + + +var config = ({ + /** + * Option merge strategies (used in core/util/options) + */ + // $flow-disable-line + optionMergeStrategies: Object.create(null), + + /** + * Whether to suppress warnings. + */ + silent: false, + + /** + * Show production mode tip message on boot? + */ + productionTip: "production" !== 'production', + + /** + * Whether to enable devtools + */ + devtools: "production" !== 'production', + + /** + * Whether to record perf + */ + performance: false, + + /** + * Error handler for watcher errors + */ + errorHandler: null, + + /** + * Warn handler for watcher warns + */ + warnHandler: null, + + /** + * Ignore certain custom elements + */ + ignoredElements: [], + + /** + * Custom user key aliases for v-on + */ + // $flow-disable-line + keyCodes: Object.create(null), + + /** + * Check if a tag is reserved so that it cannot be registered as a + * component. This is platform-dependent and may be overwritten. + */ + isReservedTag: no, + + /** + * Check if an attribute is reserved so that it cannot be used as a component + * prop. This is platform-dependent and may be overwritten. + */ + isReservedAttr: no, + + /** + * Check if a tag is an unknown element. + * Platform-dependent. + */ + isUnknownElement: no, + + /** + * Get the namespace of an element + */ + getTagNamespace: noop, + + /** + * Parse the real tag name for the specific platform. + */ + parsePlatformTagName: identity, + + /** + * Check if an attribute must be bound using property, e.g. value + * Platform-dependent. + */ + mustUseProp: no, + + /** + * Perform updates asynchronously. Intended to be used by Vue Test Utils + * This will significantly reduce performance if set to false. + */ + async: true, + + /** + * Exposed for legacy reasons + */ + _lifecycleHooks: LIFECYCLE_HOOKS +}); + +/* */ + +/** + * unicode letters used for parsing html tags, component names and property paths. + * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname + * skipping \u10000-\uEFFFF due to it freezing up PhantomJS + */ +var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/; + +/** + * Check if a string starts with $ or _ + */ +function isReserved (str) { + var c = (str + '').charCodeAt(0); + return c === 0x24 || c === 0x5F +} + +/** + * Define a property. + */ +function def (obj, key, val, enumerable) { + Object.defineProperty(obj, key, { + value: val, + enumerable: !!enumerable, + writable: true, + configurable: true + }); +} + +/** + * Parse simple path. + */ +var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]")); +function parsePath (path) { + if (bailRE.test(path)) { + return + } + var segments = path.split('.'); + return function (obj) { + for (var i = 0; i < segments.length; i++) { + if (!obj) { return } + obj = obj[segments[i]]; + } + return obj + } +} + +/* */ + +// can we use __proto__? +var hasProto = '__proto__' in {}; + +// Browser environment sniffing +var inBrowser = typeof window !== 'undefined'; +var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform; +var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase(); +var UA = inBrowser && window.navigator.userAgent.toLowerCase(); +var isIE = UA && /msie|trident/.test(UA); +var isIE9 = UA && UA.indexOf('msie 9.0') > 0; +var isEdge = UA && UA.indexOf('edge/') > 0; +var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android'); +var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios'); +var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge; +var isPhantomJS = UA && /phantomjs/.test(UA); +var isFF = UA && UA.match(/firefox\/(\d+)/); + +// Firefox has a "watch" function on Object.prototype... +var nativeWatch = ({}).watch; + +var supportsPassive = false; +if (inBrowser) { + try { + var opts = {}; + Object.defineProperty(opts, 'passive', ({ + get: function get () { + /* istanbul ignore next */ + supportsPassive = true; + } + })); // https://github.com/facebook/flow/issues/285 + window.addEventListener('test-passive', null, opts); + } catch (e) {} +} + +// this needs to be lazy-evaled because vue may be required before +// vue-server-renderer can set VUE_ENV +var _isServer; +var isServerRendering = function () { + if (_isServer === undefined) { + /* istanbul ignore if */ + if (!inBrowser && !inWeex && typeof global !== 'undefined') { + // detect presence of vue-server-renderer and avoid + // Webpack shimming the process + _isServer = global['process'] && global['process'].env.VUE_ENV === 'server'; + } else { + _isServer = false; + } + } + return _isServer +}; + +// detect devtools +var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__; + +/* istanbul ignore next */ +function isNative (Ctor) { + return typeof Ctor === 'function' && /native code/.test(Ctor.toString()) +} + +var hasSymbol = + typeof Symbol !== 'undefined' && isNative(Symbol) && + typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys); + +var _Set; +/* istanbul ignore if */ // $flow-disable-line +if (typeof Set !== 'undefined' && isNative(Set)) { + // use native Set when available. + _Set = Set; +} else { + // a non-standard Set polyfill that only works with primitive keys. + _Set = /*@__PURE__*/(function () { + function Set () { + this.set = Object.create(null); + } + Set.prototype.has = function has (key) { + return this.set[key] === true + }; + Set.prototype.add = function add (key) { + this.set[key] = true; + }; + Set.prototype.clear = function clear () { + this.set = Object.create(null); + }; + + return Set; + }()); +} + +/* */ + +var warn = noop; +var tip = noop; +var generateComponentTrace = (noop); // work around flow check +var formatComponentName = (noop); + +if (false) { + var hasConsole = typeof console !== 'undefined'; + var classifyRE = /(?:^|[-_])(\w)/g; + var classify = function (str) { return str + .replace(classifyRE, function (c) { return c.toUpperCase(); }) + .replace(/[-_]/g, ''); }; + + warn = function (msg, vm) { + var trace = vm ? generateComponentTrace(vm) : ''; + + if (config.warnHandler) { + config.warnHandler.call(null, msg, vm, trace); + } else if (hasConsole && (!config.silent)) { + console.error(("[Vue warn]: " + msg + trace)); + } + }; + + tip = function (msg, vm) { + if (hasConsole && (!config.silent)) { + console.warn("[Vue tip]: " + msg + ( + vm ? generateComponentTrace(vm) : '' + )); + } + }; + + formatComponentName = function (vm, includeFile) { + if (vm.$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(); + if (false) { + // subs aren't sorted in scheduler if not running async + // we need to sort them now to make sure they fire in correct + // order + subs.sort(function (a, b) { return a.id - b.id; }); + } + for (var i = 0, l = subs.length; i < l; i++) { + subs[i].update(); + } +}; + +// The current target watcher being evaluated. +// This is globally unique because only one watcher +// can be evaluated at a time. +Dep.target = null; +var targetStack = []; + +function pushTarget (target) { + targetStack.push(target); + Dep.target = target; +} + +function popTarget () { + targetStack.pop(); + Dep.target = targetStack[targetStack.length - 1]; +} + +/* */ + +var VNode = function VNode ( + tag, + data, + children, + text, + elm, + context, + componentOptions, + asyncFactory +) { + this.tag = tag; + this.data = data; + this.children = children; + this.text = text; + this.elm = elm; + this.ns = undefined; + this.context = context; + this.fnContext = undefined; + this.fnOptions = undefined; + this.fnScopeId = undefined; + this.key = data && data.key; + this.componentOptions = componentOptions; + this.componentInstance = undefined; + this.parent = undefined; + this.raw = false; + this.isStatic = false; + this.isRootInsert = true; + this.isComment = false; + this.isCloned = false; + this.isOnce = false; + this.asyncFactory = asyncFactory; + this.asyncMeta = undefined; + this.isAsyncPlaceholder = false; +}; + +var prototypeAccessors = { child: { configurable: true } }; + +// DEPRECATED: alias for componentInstance for backwards compat. +/* istanbul ignore next */ +prototypeAccessors.child.get = function () { + return this.componentInstance +}; + +Object.defineProperties( VNode.prototype, prototypeAccessors ); + +var createEmptyVNode = function (text) { + if ( text === void 0 ) text = ''; + + var node = new VNode(); + node.text = text; + node.isComment = true; + return node +}; + +function createTextVNode (val) { + return new VNode(undefined, undefined, undefined, String(val)) +} + +// optimized shallow clone +// used for static nodes and slot nodes because they may be reused across +// multiple renders, cloning them avoids errors when DOM manipulations rely +// on their elm reference. +function cloneVNode (vnode) { + var cloned = new VNode( + vnode.tag, + vnode.data, + // #7975 + // clone children array to avoid mutating original in case of cloning + // a child. + vnode.children && vnode.children.slice(), + vnode.text, + vnode.elm, + vnode.context, + vnode.componentOptions, + vnode.asyncFactory + ); + cloned.ns = vnode.ns; + cloned.isStatic = vnode.isStatic; + cloned.key = vnode.key; + cloned.isComment = vnode.isComment; + cloned.fnContext = vnode.fnContext; + cloned.fnOptions = vnode.fnOptions; + cloned.fnScopeId = vnode.fnScopeId; + cloned.asyncMeta = vnode.asyncMeta; + cloned.isCloned = true; + return cloned +} + +/* + * not type checking this file because flow doesn't play well with + * dynamically accessing methods on Array prototype + */ + +var arrayProto = Array.prototype; +var arrayMethods = Object.create(arrayProto); + +var methodsToPatch = [ + 'push', + 'pop', + 'shift', + 'unshift', + 'splice', + 'sort', + 'reverse' +]; + +/** + * Intercept mutating methods and emit events + */ +methodsToPatch.forEach(function (method) { + // cache original method + var original = arrayProto[method]; + def(arrayMethods, method, function mutator () { + var args = [], len = arguments.length; + while ( len-- ) args[ len ] = arguments[ len ]; + + var result = original.apply(this, args); + var ob = this.__ob__; + var inserted; + switch (method) { + case 'push': + case 'unshift': + inserted = args; + break + case 'splice': + inserted = args.slice(2); + break + } + if (inserted) { ob.observeArray(inserted); } + // notify change + ob.dep.notify(); + return result + }); +}); + +/* */ + +var arrayKeys = Object.getOwnPropertyNames(arrayMethods); + +/** + * In some cases we may want to disable observation inside a component's + * update computation. + */ +var shouldObserve = true; + +function toggleObserving (value) { + shouldObserve = value; +} + +/** + * Observer class that is attached to each observed + * object. Once attached, the observer converts the target + * object's property keys into getter/setters that + * collect dependencies and dispatch updates. + */ +var Observer = function Observer (value) { + this.value = value; + this.dep = new Dep(); + this.vmCount = 0; + def(value, '__ob__', this); + if (Array.isArray(value)) { + if (hasProto) { + protoAugment(value, arrayMethods); + } else { + copyAugment(value, arrayMethods, arrayKeys); + } + this.observeArray(value); + } else { + this.walk(value); + } +}; + +/** + * Walk through all properties and convert them into + * getter/setters. This method should only be called when + * value type is Object. + */ +Observer.prototype.walk = function walk (obj) { + var keys = Object.keys(obj); + for (var i = 0; i < keys.length; i++) { + defineReactive$$1(obj, keys[i]); + } +}; + +/** + * Observe a list of Array items. + */ +Observer.prototype.observeArray = function observeArray (items) { + for (var i = 0, l = items.length; i < l; i++) { + observe(items[i]); + } +}; + +// helpers + +/** + * Augment a target Object or Array by intercepting + * the prototype chain using __proto__ + */ +function protoAugment (target, src) { + /* eslint-disable no-proto */ + target.__proto__ = src; + /* eslint-enable no-proto */ +} + +/** + * Augment a target Object or Array by defining + * hidden properties. + */ +/* istanbul ignore next */ +function copyAugment (target, src, keys) { + for (var i = 0, l = keys.length; i < l; i++) { + var key = keys[i]; + def(target, key, src[key]); + } +} + +/** + * Attempt to create an observer instance for a value, + * returns the new observer if successfully observed, + * or the existing observer if the value already has one. + */ +function observe (value, asRootData) { + if (!isObject(value) || value instanceof VNode) { + return + } + var ob; + if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) { + ob = value.__ob__; + } else if ( + shouldObserve && + !isServerRendering() && + (Array.isArray(value) || isPlainObject(value)) && + Object.isExtensible(value) && + !value._isVue + ) { + ob = new Observer(value); + } + if (asRootData && ob) { + ob.vmCount++; + } + return ob +} + +/** + * Define a reactive property on an Object. + */ +function defineReactive$$1 ( + obj, + key, + val, + customSetter, + shallow +) { + var dep = new Dep(); + + var property = Object.getOwnPropertyDescriptor(obj, key); + if (property && property.configurable === false) { + return + } + + // cater for pre-defined getter/setters + var getter = property && property.get; + var setter = property && property.set; + if ((!getter || setter) && arguments.length === 2) { + val = obj[key]; + } + + var childOb = !shallow && observe(val); + Object.defineProperty(obj, key, { + enumerable: true, + configurable: true, + get: function reactiveGetter () { + var value = getter ? getter.call(obj) : val; + if (Dep.target) { + dep.depend(); + if (childOb) { + childOb.dep.depend(); + if (Array.isArray(value)) { + dependArray(value); + } + } + } + return value + }, + set: function reactiveSetter (newVal) { + var value = getter ? getter.call(obj) : val; + /* eslint-disable no-self-compare */ + if (newVal === value || (newVal !== newVal && value !== value)) { + return + } + /* eslint-enable no-self-compare */ + if (false) { + customSetter(); + } + // #7981: for accessor properties without setter + if (getter && !setter) { return } + if (setter) { + setter.call(obj, newVal); + } else { + val = newVal; + } + childOb = !shallow && observe(newVal); + dep.notify(); + } + }); +} + +/** + * Set a property on an object. Adds the new property and + * triggers change notification if the property doesn't + * already exist. + */ +function set (target, key, val) { + if (false + ) { + 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)) { + "production" !== 'production' && warn( + 'Avoid adding reactive properties to a Vue instance or its root $data ' + + 'at runtime - declare it upfront in the data option.' + ); + return val + } + if (!ob) { + target[key] = val; + return val + } + defineReactive$$1(ob.value, key, val); + ob.dep.notify(); + return val +} + +/** + * Delete a property and trigger change if necessary. + */ +function del (target, key) { + if (false + ) { + 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)) { + "production" !== '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 + */ +if (false) { + strats.el = strats.propsData = function (parent, child, vm, key) { + if (!vm) { + warn( + "option \"" + key + "\" can only be used during instance " + + 'creation with the `new` keyword.' + ); + } + return defaultStrat(parent, child) + }; +} + +/** + * Helper that recursively merges two data objects together. + */ +function mergeData (to, from) { + if (!from) { return to } + var key, toVal, fromVal; + + var keys = hasSymbol + ? Reflect.ownKeys(from) + : Object.keys(from); + + for (var i = 0; i < keys.length; i++) { + key = keys[i]; + // in case the object is already observed... + if (key === '__ob__') { continue } + toVal = to[key]; + fromVal = from[key]; + if (!hasOwn(to, key)) { + set(to, key, fromVal); + } else if ( + toVal !== fromVal && + isPlainObject(toVal) && + isPlainObject(fromVal) + ) { + mergeData(toVal, fromVal); + } + } + return to +} + +/** + * Data + */ +function mergeDataOrFn ( + parentVal, + childVal, + vm +) { + if (!vm) { + // in a Vue.extend merge, both should be functions + if (!childVal) { + return parentVal + } + if (!parentVal) { + return childVal + } + // when parentVal & childVal are both present, + // we need to return a function that returns the + // merged result of both functions... no need to + // check if parentVal is a function here because + // it has to be a function to pass previous merges. + return function mergedDataFn () { + return mergeData( + typeof childVal === 'function' ? childVal.call(this, this) : childVal, + typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal + ) + } + } else { + return function mergedInstanceDataFn () { + // instance merge + var instanceData = typeof childVal === 'function' + ? childVal.call(vm, vm) + : childVal; + var defaultData = typeof parentVal === 'function' + ? parentVal.call(vm, vm) + : parentVal; + if (instanceData) { + return mergeData(instanceData, defaultData) + } else { + return defaultData + } + } + } +} + +strats.data = function ( + parentVal, + childVal, + vm +) { + if (!vm) { + if (childVal && typeof childVal !== 'function') { + "production" !== '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 +) { + var res = childVal + ? parentVal + ? parentVal.concat(childVal) + : Array.isArray(childVal) + ? childVal + : [childVal] + : parentVal; + return res + ? dedupeHooks(res) + : res +} + +function dedupeHooks (hooks) { + var res = []; + for (var i = 0; i < hooks.length; i++) { + if (res.indexOf(hooks[i]) === -1) { + res.push(hooks[i]); + } + } + return res +} + +LIFECYCLE_HOOKS.forEach(function (hook) { + strats[hook] = mergeHook; +}); + +/** + * Assets + * + * When a vm is present (instance creation), we need to do + * a three-way merge between constructor options, instance + * options and parent options. + */ +function mergeAssets ( + parentVal, + childVal, + vm, + key +) { + var res = Object.create(parentVal || null); + if (childVal) { + "production" !== '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) } + if (false) { + 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 && "production" !== 'production') { + assertObjectType(key, childVal, vm); + } + if (!parentVal) { return childVal } + var ret = Object.create(null); + extend(ret, parentVal); + if (childVal) { extend(ret, childVal); } + return ret +}; +strats.provide = mergeDataOrFn; + +/** + * Default strategy. + */ +var defaultStrat = function (parentVal, childVal) { + return childVal === undefined + ? parentVal + : childVal +}; + +/** + * Validate component names + */ +function checkComponents (options) { + for (var key in options.components) { + validateComponentName(key); + } +} + +function validateComponentName (name) { + if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) { + warn( + 'Invalid component name: "' + name + '". Component names ' + + 'should conform to valid custom element name in html5 specification.' + ); + } + if (isBuiltInTag(name) || config.isReservedTag(name)) { + warn( + 'Do not use built-in or reserved HTML elements as component ' + + 'id: ' + name + ); + } +} + +/** + * Ensure all props option syntax are normalized into the + * Object-based format. + */ +function normalizeProps (options, vm) { + var props = options.props; + if (!props) { return } + var res = {}; + var i, val, name; + if (Array.isArray(props)) { + i = props.length; + while (i--) { + val = props[i]; + if (typeof val === 'string') { + name = camelize(val); + res[name] = { type: null }; + } else if (false) { + 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 if (false) { + 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 if (false) { + warn( + "Invalid value for option \"inject\": expected an Array or an Object, " + + "but got " + (toRawType(inject)) + ".", + vm + ); + } +} + +/** + * Normalize raw function directives into object format. + */ +function normalizeDirectives (options) { + var dirs = options.directives; + if (dirs) { + for (var key in dirs) { + var def$$1 = dirs[key]; + if (typeof def$$1 === 'function') { + dirs[key] = { bind: def$$1, update: def$$1 }; + } + } + } +} + +function assertObjectType (name, value, vm) { + if (!isPlainObject(value)) { + warn( + "Invalid value for option \"" + name + "\": expected an Object, " + + "but got " + (toRawType(value)) + ".", + vm + ); + } +} + +/** + * Merge two option objects into a new one. + * Core utility used in both instantiation and inheritance. + */ +function mergeOptions ( + parent, + child, + vm +) { + if (false) { + checkComponents(child); + } + + if (typeof child === 'function') { + child = child.options; + } + + normalizeProps(child, vm); + normalizeInject(child, vm); + normalizeDirectives(child); + + // Apply extends and mixins on the child options, + // but only if it is a raw options object that isn't + // the result of another mergeOptions call. + // Only merged options has the _base property. + if (!child._base) { + if (child.extends) { + parent = mergeOptions(parent, child.extends, vm); + } + if (child.mixins) { + for (var i = 0, l = child.mixins.length; i < l; i++) { + parent = mergeOptions(parent, child.mixins[i], vm); + } + } + } + + var options = {}; + var key; + for (key in parent) { + mergeField(key); + } + for (key in child) { + if (!hasOwn(parent, key)) { + mergeField(key); + } + } + function mergeField (key) { + var strat = strats[key] || defaultStrat; + options[key] = strat(parent[key], child[key], vm, key); + } + return options +} + +/** + * Resolve an asset. + * This function is used because child instances need access + * to assets defined in its ancestor chain. + */ +function resolveAsset ( + options, + type, + id, + warnMissing +) { + /* istanbul ignore if */ + if (typeof id !== 'string') { + return + } + var assets = options[type]; + // check local registration variations first + if (hasOwn(assets, id)) { return assets[id] } + var camelizedId = camelize(id); + if (hasOwn(assets, camelizedId)) { return assets[camelizedId] } + var PascalCaseId = capitalize(camelizedId); + if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] } + // fallback to prototype chain + var res = assets[id] || assets[camelizedId] || assets[PascalCaseId]; + if (false) { + 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); + } + if ( + false + ) { + 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 (false) { + 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( + getInvalidTypeMessage(name, value, expectedTypes), + vm + ); + return + } + var validator = prop.validator; + if (validator) { + if (!validator(value)) { + warn( + 'Invalid prop: custom validator check failed for prop "' + name + '".', + vm + ); + } + } +} + +var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/; + +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 getInvalidTypeMessage (name, value, expectedTypes) { + var message = "Invalid prop: type check failed for prop \"" + name + "\"." + + " Expected " + (expectedTypes.map(capitalize).join(', ')); + var expectedType = expectedTypes[0]; + var receivedType = toRawType(value); + var expectedValue = styleValue(value, expectedType); + var receivedValue = styleValue(value, receivedType); + // check if we need to specify expected value + if (expectedTypes.length === 1 && + isExplicable(expectedType) && + !isBoolean(expectedType, receivedType)) { + message += " with value " + expectedValue; + } + message += ", got " + receivedType + " "; + // check if we need to specify received value + if (isExplicable(receivedType)) { + message += "with value " + receivedValue + "."; + } + return message +} + +function styleValue (value, type) { + if (type === 'String') { + return ("\"" + value + "\"") + } else if (type === 'Number') { + return ("" + (Number(value))) + } else { + return ("" + value) + } +} + +function isExplicable (value) { + var explicitTypes = ['string', 'number', 'boolean']; + return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; }) +} + +function isBoolean () { + var args = [], len = arguments.length; + while ( len-- ) args[ len ] = arguments[ len ]; + + return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; }) +} + +/* */ + +function handleError (err, vm, info) { + // Deactivate deps tracking while processing error handler to avoid possible infinite rendering. + // See: https://github.com/vuejs/vuex/issues/1505 + pushTarget(); + try { + if (vm) { + var cur = vm; + while ((cur = cur.$parent)) { + var hooks = cur.$options.errorCaptured; + if (hooks) { + for (var i = 0; i < hooks.length; i++) { + try { + var capture = hooks[i].call(cur, err, vm, info) === false; + if (capture) { return } + } catch (e) { + globalHandleError(e, cur, 'errorCaptured hook'); + } + } + } + } + } + globalHandleError(err, vm, info); + } finally { + popTarget(); + } +} + +function invokeWithErrorHandling ( + handler, + context, + args, + vm, + info +) { + var res; + try { + res = args ? handler.apply(context, args) : handler.call(context); + if (res && !res._isVue && isPromise(res) && !res._handled) { + res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); }); + // issue #9511 + // avoid catch triggering multiple times when nested calls + res._handled = true; + } + } catch (e) { + handleError(e, vm, info); + } + return res +} + +function globalHandleError (err, vm, info) { + if (config.errorHandler) { + try { + return config.errorHandler.call(null, err, vm, info) + } catch (e) { + // if the user intentionally throws the original error in the handler, + // do not log it twice + if (e !== err) { + logError(e, null, 'config.errorHandler'); + } + } + } + logError(err, vm, info); +} + +function logError (err, vm, info) { + if (false) { + warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm); + } + /* istanbul ignore else */ + if ((inBrowser || inWeex) && typeof console !== 'undefined') { + console.error(err); + } else { + throw err + } +} + +/* */ + +var isUsingMicroTask = false; + +var callbacks = []; +var pending = false; + +function flushCallbacks () { + pending = false; + var copies = callbacks.slice(0); + callbacks.length = 0; + for (var i = 0; i < copies.length; i++) { + copies[i](); + } +} + +// Here we have async deferring wrappers using microtasks. +// In 2.5 we used (macro) tasks (in combination with microtasks). +// However, it has subtle problems when state is changed right before repaint +// (e.g. #6813, out-in transitions). +// Also, using (macro) tasks in event handler would cause some weird behaviors +// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109). +// So we now use microtasks everywhere, again. +// A major drawback of this tradeoff is that there are some scenarios +// where microtasks have too high a priority and fire in between supposedly +// sequential events (e.g. #4521, #6690, which have workarounds) +// or even between bubbling of the same event (#6566). +var timerFunc; + +// The nextTick behavior leverages the microtask queue, which can be accessed +// via either native Promise.then or MutationObserver. +// MutationObserver has wider support, however it is seriously bugged in +// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It +// completely stops working after triggering a few times... so, if native +// Promise is available, we will use it: +/* istanbul ignore next, $flow-disable-line */ +if (typeof Promise !== 'undefined' && isNative(Promise)) { + var p = Promise.resolve(); + timerFunc = function () { + p.then(flushCallbacks); + // In problematic UIWebViews, Promise.then doesn't completely break, but + // it can get stuck in a weird state where callbacks are pushed into the + // microtask queue but the queue isn't being flushed, until the browser + // needs to do some other work, e.g. handle a timer. Therefore we can + // "force" the microtask queue to be flushed by adding an empty timer. + if (isIOS) { setTimeout(noop); } + }; + isUsingMicroTask = true; +} else if (!isIE && typeof MutationObserver !== 'undefined' && ( + isNative(MutationObserver) || + // PhantomJS and iOS 7.x + MutationObserver.toString() === '[object MutationObserverConstructor]' +)) { + // Use MutationObserver where native Promise is not available, + // e.g. PhantomJS, iOS7, Android 4.4 + // (#6466 MutationObserver is unreliable in IE11) + var counter = 1; + var observer = new MutationObserver(flushCallbacks); + var textNode = document.createTextNode(String(counter)); + observer.observe(textNode, { + characterData: true + }); + timerFunc = function () { + counter = (counter + 1) % 2; + textNode.data = String(counter); + }; + isUsingMicroTask = true; +} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) { + // Fallback to setImmediate. + // Techinically it leverages the (macro) task queue, + // but it is still a better choice than setTimeout. + timerFunc = function () { + setImmediate(flushCallbacks); + }; +} else { + // Fallback to setTimeout. + timerFunc = function () { + setTimeout(flushCallbacks, 0); + }; +} + +function nextTick (cb, ctx) { + var _resolve; + callbacks.push(function () { + if (cb) { + try { + cb.call(ctx); + } catch (e) { + handleError(e, ctx, 'nextTick'); + } + } else if (_resolve) { + _resolve(ctx); + } + }); + if (!pending) { + pending = true; + timerFunc(); + } + // $flow-disable-line + if (!cb && typeof Promise !== 'undefined') { + return new Promise(function (resolve) { + _resolve = resolve; + }) + } +} + +/* */ + +/* not type checking this file because flow doesn't play well with Proxy */ + +var initProxy; + +if (false) { + 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 warnReservedPrefix = function (target, key) { + warn( + "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " + + 'properties starting with "$" or "_" are not proxied in the Vue instance to ' + + 'prevent conflicts with Vue internals' + + 'See: https://vuejs.org/v2/api/#data', + target + ); + }; + + var hasProxy = + typeof Proxy !== 'undefined' && isNative(Proxy); + + if (hasProxy) { + var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact'); + config.keyCodes = new Proxy(config.keyCodes, { + set: function set (target, key, value) { + if (isBuiltInModifier(key)) { + warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key)); + return false + } else { + target[key] = value; + return true + } + } + }); + } + + var hasHandler = { + has: function has (target, key) { + var has = key in target; + var isAllowed = allowedGlobals(key) || + (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data)); + if (!has && !isAllowed) { + if (key in target.$data) { warnReservedPrefix(target, key); } + else { warnNonPresent(target, key); } + } + return has || !isAllowed + } + }; + + var getHandler = { + get: function get (target, key) { + if (typeof key === 'string' && !(key in target)) { + if (key in target.$data) { warnReservedPrefix(target, key); } + else { warnNonPresent(target, key); } + } + return target[key] + } + }; + + initProxy = function initProxy (vm) { + if (hasProxy) { + // determine which proxy handler to use + var options = vm.$options; + var handlers = options.render && options.render._withStripped + ? getHandler + : hasHandler; + vm._renderProxy = new Proxy(vm, handlers); + } else { + vm._renderProxy = vm; + } + }; +} + +/* */ + +var seenObjects = new _Set(); + +/** + * Recursively traverse an object to evoke all converted + * getters, so that every nested property inside the object + * is collected as a "deep" dependency. + */ +function traverse (val) { + _traverse(val, seenObjects); + seenObjects.clear(); +} + +function _traverse (val, seen) { + var i, keys; + var isA = Array.isArray(val); + if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) { + return + } + if (val.__ob__) { + var depId = val.__ob__.dep.id; + if (seen.has(depId)) { + return + } + seen.add(depId); + } + if (isA) { + i = val.length; + while (i--) { _traverse(val[i], seen); } + } else { + keys = Object.keys(val); + i = keys.length; + while (i--) { _traverse(val[keys[i]], seen); } + } +} + +var mark; +var measure; + +if (false) { + 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) + }; + } +} + +/* */ + +var normalizeEvent = cached(function (name) { + var passive = name.charAt(0) === '&'; + name = passive ? name.slice(1) : name; + var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first + name = once$$1 ? name.slice(1) : name; + var capture = name.charAt(0) === '!'; + name = capture ? name.slice(1) : name; + return { + name: name, + once: once$$1, + capture: capture, + passive: passive + } +}); + +function createFnInvoker (fns, vm) { + function invoker () { + var arguments$1 = arguments; + + var fns = invoker.fns; + if (Array.isArray(fns)) { + var cloned = fns.slice(); + for (var i = 0; i < cloned.length; i++) { + invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler"); + } + } else { + // return handler return value for single handlers + return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler") + } + } + invoker.fns = fns; + return invoker +} + +function updateListeners ( + on, + oldOn, + add, + remove$$1, + createOnceHandler, + vm +) { + var name, def$$1, cur, old, event; + for (name in on) { + def$$1 = cur = on[name]; + old = oldOn[name]; + event = normalizeEvent(name); + if (isUndef(cur)) { + "production" !== 'production' && warn( + "Invalid handler for event \"" + (event.name) + "\": got " + String(cur), + vm + ); + } else if (isUndef(old)) { + if (isUndef(cur.fns)) { + cur = on[name] = createFnInvoker(cur, vm); + } + if (isTrue(event.once)) { + cur = on[name] = createOnceHandler(event.name, cur, event.capture); + } + add(event.name, cur, event.capture, event.passive, event.params); + } else if (cur !== old) { + old.fns = cur; + on[name] = old; + } + } + for (name in oldOn) { + if (isUndef(on[name])) { + event = normalizeEvent(name); + remove$$1(event.name, oldOn[name], event.capture); + } + } +} + +/* */ + +function mergeVNodeHook (def, hookKey, hook) { + if (def instanceof VNode) { + def = def.data.hook || (def.data.hook = {}); + } + var invoker; + var oldHook = def[hookKey]; + + function wrappedHook () { + hook.apply(this, arguments); + // important: remove merged hook to ensure it's called only once + // and prevent memory leak + remove(invoker.fns, wrappedHook); + } + + if (isUndef(oldHook)) { + // no existing hook + invoker = createFnInvoker([wrappedHook]); + } else { + /* istanbul ignore if */ + if (isDef(oldHook.fns) && isTrue(oldHook.merged)) { + // already a merged invoker + invoker = oldHook; + invoker.fns.push(wrappedHook); + } else { + // existing plain hook + invoker = createFnInvoker([oldHook, wrappedHook]); + } + } + + invoker.merged = true; + def[hookKey] = invoker; +} + +/* */ + +function extractPropsFromVNodeData ( + data, + Ctor, + tag +) { + // we are only extracting raw values here. + // validation and default values are handled in the child + // component itself. + var propOptions = Ctor.options.props; + if (isUndef(propOptions)) { + return + } + var res = {}; + var attrs = data.attrs; + var props = data.props; + if (isDef(attrs) || isDef(props)) { + for (var key in propOptions) { + var altKey = hyphenate(key); + if (false) { + 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.