astexplorer.app/vendor/astexplorer/out/71.js

https://astexplorer.net with ES Modules support and Hot Reloading

(window.webpackJsonp=window.webpackJsonp||[]).push([[71],{"./node_modules/process/browser.js":function(module,exports){eval("// shim for using process in browser\nvar process = module.exports = {};\n\n// cached from whatever global is present so that test runners that stub it\n// don't break things.  But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals.  It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n    throw new Error('setTimeout has not been defined');\n}\nfunction defaultClearTimeout () {\n    throw new Error('clearTimeout has not been defined');\n}\n(function () {\n    try {\n        if (typeof setTimeout === 'function') {\n            cachedSetTimeout = setTimeout;\n        } else {\n            cachedSetTimeout = defaultSetTimout;\n        }\n    } catch (e) {\n        cachedSetTimeout = defaultSetTimout;\n    }\n    try {\n        if (typeof clearTimeout === 'function') {\n            cachedClearTimeout = clearTimeout;\n        } else {\n            cachedClearTimeout = defaultClearTimeout;\n        }\n    } catch (e) {\n        cachedClearTimeout = defaultClearTimeout;\n    }\n} ())\nfunction runTimeout(fun) {\n    if (cachedSetTimeout === setTimeout) {\n        //normal enviroments in sane situations\n        return setTimeout(fun, 0);\n    }\n    // if setTimeout wasn't available but was latter defined\n    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n        cachedSetTimeout = setTimeout;\n        return setTimeout(fun, 0);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedSetTimeout(fun, 0);\n    } catch(e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n            return cachedSetTimeout.call(null, fun, 0);\n        } catch(e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n            return cachedSetTimeout.call(this, fun, 0);\n        }\n    }\n\n\n}\nfunction runClearTimeout(marker) {\n    if (cachedClearTimeout === clearTimeout) {\n        //normal enviroments in sane situations\n        return clearTimeout(marker);\n    }\n    // if clearTimeout wasn't available but was latter defined\n    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n        cachedClearTimeout = clearTimeout;\n        return clearTimeout(marker);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedClearTimeout(marker);\n    } catch (e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally\n            return cachedClearTimeout.call(null, marker);\n        } catch (e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n            // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n            return cachedClearTimeout.call(this, marker);\n        }\n    }\n\n\n\n}\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n    if (!draining || !currentQueue) {\n        return;\n    }\n    draining = false;\n    if (currentQueue.length) {\n        queue = currentQueue.concat(queue);\n    } else {\n        queueIndex = -1;\n    }\n    if (queue.length) {\n        drainQueue();\n    }\n}\n\nfunction drainQueue() {\n    if (draining) {\n        return;\n    }\n    var timeout = runTimeout(cleanUpNextTick);\n    draining = true;\n\n    var len = queue.length;\n    while(len) {\n        currentQueue = queue;\n        queue = [];\n        while (++queueIndex < len) {\n            if (currentQueue) {\n                currentQueue[queueIndex].run();\n            }\n        }\n        queueIndex = -1;\n        len = queue.length;\n    }\n    currentQueue = null;\n    draining = false;\n    runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n    var args = new Array(arguments.length - 1);\n    if (arguments.length > 1) {\n        for (var i = 1; i < arguments.length; i++) {\n            args[i - 1] = arguments[i];\n        }\n    }\n    queue.push(new Item(fun, args));\n    if (queue.length === 1 && !draining) {\n        runTimeout(drainQueue);\n    }\n};\n\n// v8 likes predictible objects\nfunction Item(fun, array) {\n    this.fun = fun;\n    this.array = array;\n}\nItem.prototype.run = function () {\n    this.fun.apply(null, this.array);\n};\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) { return [] }\n\nprocess.binding = function (name) {\n    throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () { return '/' };\nprocess.chdir = function (dir) {\n    throw new Error('process.chdir is not supported');\n};\nprocess.umask = function() { return 0; };\n\n\n//# sourceURL=webpack:///./node_modules/process/browser.js?")},"./node_modules/san/dist/san.dev.js":function(module,exports,__webpack_require__){eval("/* WEBPACK VAR INJECTION */(function(setImmediate) {/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file San 主文件\n */\n\n(function (root) {\n    // 人工调整打包代码顺序，通过注释手工写一些依赖\n//     // require('./util/guid');\n//     // require('./util/empty');\n//     // require('./util/extend');\n//     // require('./util/inherits');\n//     // require('./util/each');\n//     // require('./util/contains');\n//     // require('./util/bind');\n//     // require('./browser/on');\n//     // require('./browser/un');\n//     // require('./browser/svg-tags');\n//     // require('./browser/create-el');\n//     // require('./browser/remove-el');\n//     // require('./util/next-tick');\n//     // require('./browser/ie');\n//     // require('./browser/ie-old-than-9');\n//     // require('./browser/input-event-compatible');\n//     // require('./browser/auto-close-tags');\n//     // require('./util/data-types.js');\n//     // require('./util/create-data-types-checker.js');\n//     // require('./parser/walker');\n//     // require('./parser/parse-template');\n//     // require('./runtime/change-expr-compare');\n//     // require('./runtime/data-change-type');\n//     // require('./runtime/default-filters');\n//     // require('./view/life-cycle');\n//     // require('./view/node-type');\n//     // require('./view/get-prop-handler');\n//     // require('./view/is-data-change-by-element');\n//     // require('./view/get-event-listener');\n//     // require('./view/create-node');\n\n\n    /**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 唯一id\n */\n\n\n/**\n * 获取唯一id\n *\n * @type {number} 唯一id\n */\nvar guid = 1;\n\n// exports = module.exports = guid;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 空函数\n */\n\n\n/**\n * 啥都不干\n */\nfunction empty() {}\n\n// exports = module.exports = empty;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 属性拷贝\n */\n\n/**\n * 对象属性拷贝\n *\n * @param {Object} target 目标对象\n * @param {Object} source 源对象\n * @return {Object} 返回目标对象\n */\nfunction extend(target, source) {\n    for (var key in source) {\n        /* istanbul ignore else  */\n        if (source.hasOwnProperty(key)) {\n            var value = source[key];\n            if (typeof value !== 'undefined') {\n                target[key] = value;\n            }\n        }\n    }\n\n    return target;\n}\n\n// exports = module.exports = extend;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 构建类之间的继承关系\n */\n\n// var extend = require('./extend');\n\n/**\n * 构建类之间的继承关系\n *\n * @param {Function} subClass 子类函数\n * @param {Function} superClass 父类函数\n */\nfunction inherits(subClass, superClass) {\n    /* jshint -W054 */\n    var subClassProto = subClass.prototype;\n    var F = new Function();\n    F.prototype = superClass.prototype;\n    subClass.prototype = new F();\n    subClass.prototype.constructor = subClass;\n    extend(subClass.prototype, subClassProto);\n    /* jshint +W054 */\n}\n\n// exports = module.exports = inherits;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 遍历数组\n */\n\n\n/**\n * 遍历数组集合\n *\n * @param {Array} array 数组源\n * @param {function(Any,number):boolean} iterator 遍历函数\n */\nfunction each(array, iterator) {\n    if (array && array.length > 0) {\n        for (var i = 0, l = array.length; i < l; i++) {\n            if (iterator(array[i], i) === false) {\n                break;\n            }\n        }\n    }\n}\n\n// exports = module.exports = each;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 判断数组中是否包含某项\n */\n\n// var each = require('./each');\n\n/**\n * 判断数组中是否包含某项\n *\n * @param {Array} array 数组\n * @param {*} value 包含的项\n * @return {boolean}\n */\nfunction contains(array, value) {\n    var result = false;\n    each(array, function (item) {\n        result = item === value;\n        return !result;\n    });\n\n    return result;\n}\n\n// exports = module.exports = contains;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file bind函数\n */\n\n/**\n * Function.prototype.bind 方法的兼容性封装\n *\n * @param {Function} func 要bind的函数\n * @param {Object} thisArg this指向对象\n * @param {...*} args 预设的初始参数\n * @return {Function}\n */\nfunction bind(func, thisArg) {\n    var nativeBind = Function.prototype.bind;\n    var slice = Array.prototype.slice;\n    // #[begin] allua\n    if (nativeBind && func.bind === nativeBind) {\n    // #[end]\n        return nativeBind.apply(func, slice.call(arguments, 1));\n    // #[begin] allua\n    }\n\n    /* istanbul ignore next */\n    var args = slice.call(arguments, 2);\n    /* istanbul ignore next */\n    return function () {\n        return func.apply(thisArg, args.concat(slice.call(arguments)));\n    };\n    // #[end]\n}\n\n// exports = module.exports = bind;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file DOM 事件挂载\n */\n\n/**\n * DOM 事件挂载\n *\n * @inner\n * @param {HTMLElement} el DOM元素\n * @param {string} eventName 事件名\n * @param {Function} listener 监听函数\n * @param {boolean} capture 是否是捕获阶段\n */\nfunction on(el, eventName, listener, capture) {\n    // #[begin] allua\n    /* istanbul ignore else */\n    if (el.addEventListener) {\n    // #[end]\n        el.addEventListener(eventName, listener, capture);\n    // #[begin] allua\n    }\n    else {\n        el.attachEvent('on' + eventName, listener);\n    }\n    // #[end]\n}\n\n// exports = module.exports = on;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file DOM 事件卸载\n */\n\n/**\n * DOM 事件卸载\n *\n * @inner\n * @param {HTMLElement} el DOM元素\n * @param {string} eventName 事件名\n * @param {Function} listener 监听函数\n * @param {boolean} capture 是否是捕获阶段\n */\nfunction un(el, eventName, listener, capture) {\n    // #[begin] allua\n    /* istanbul ignore else */\n    if (el.addEventListener) {\n    // #[end]\n        el.removeEventListener(eventName, listener, capture);\n    // #[begin] allua\n    }\n    else {\n        el.detachEvent('on' + eventName, listener);\n    }\n    // #[end]\n}\n\n// exports = module.exports = un;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 将字符串逗号切分返回对象\n */\n\n// var each = require('../util/each');\n\n/**\n * 将字符串逗号切分返回对象\n *\n * @param {string} source 源字符串\n * @return {Object}\n */\nfunction splitStr2Obj(source) {\n    var result = {};\n    each(\n        source.split(','),\n        function (key) {\n            result[key] = key;\n        }\n    );\n    return result;\n}\n\n// exports = module.exports = splitStr2Obj;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file SVG标签表\n */\n\n// var splitStr2Obj = require('../util/split-str-2-obj');\n\n/**\n * svgTags\n *\n * @see https://www.w3.org/TR/SVG/svgdtd.html 只取常用\n * @type {Object}\n */\nvar svgTags = splitStr2Obj(''\n    // structure\n    + 'svg,g,defs,desc,metadata,symbol,use,'\n    // image & shape\n    + 'image,path,rect,circle,line,ellipse,polyline,polygon,'\n    // text\n    + 'text,tspan,tref,textpath,'\n    // other\n    + 'marker,pattern,clippath,mask,filter,cursor,view,animate,'\n    // font\n    + 'font,font-face,glyph,missing-glyph,'\n    // camel\n    + 'animateColor,animateMotion,animateTransform,textPath,foreignObject'\n);\n\n// exports = module.exports = svgTags;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file DOM创建\n */\n\n// var svgTags = require('./svg-tags');\n\n/**\n * 创建 DOM 元素\n *\n * @param  {string} tagName tagName\n * @return {HTMLElement}\n */\nfunction createEl(tagName) {\n    if (svgTags[tagName] && document.createElementNS) {\n        return document.createElementNS('http://www.w3.org/2000/svg', tagName);\n    }\n\n    return document.createElement(tagName);\n}\n\n// exports = module.exports = createEl;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 移除DOM\n */\n\n/**\n * 将 DOM 从页面中移除\n *\n * @param {HTMLElement} el DOM元素\n */\nfunction removeEl(el) {\n    if (el && el.parentNode) {\n        el.parentNode.removeChild(el);\n    }\n}\n\n// exports = module.exports = removeEl;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 在下一个时间周期运行任务\n */\n\n// 该方法参照了vue2.5.0的实现，感谢vue团队\n// SEE: https://github.com/vuejs/vue/blob/0948d999f2fddf9f90991956493f976273c5da1f/src/core/util/env.js#L68\n\n\n// var bind = require('./bind');\n\n/**\n * 下一个周期要执行的任务列表\n *\n * @inner\n * @type {Array}\n */\nvar nextTasks = [];\n\n/**\n * 执行下一个周期任务的函数\n *\n * @inner\n * @type {Function}\n */\nvar nextHandler;\n\n/**\n * 浏览器是否支持原生Promise\n * 对Promise做判断，是为了禁用一些不严谨的Promise的polyfill\n *\n * @inner\n * @type {boolean}\n */\nvar isNativePromise = typeof Promise === 'function' && /native code/.test(Promise);\n\n/**\n * 在下一个时间周期运行任务\n *\n * @inner\n * @param {Function} fn 要运行的任务函数\n * @param {Object=} thisArg this指向对象\n */\nfunction nextTick(fn, thisArg) {\n    if (thisArg) {\n        fn = bind(fn, thisArg);\n    }\n    nextTasks.push(fn);\n\n    if (nextHandler) {\n        return;\n    }\n\n    nextHandler = function () {\n        var tasks = nextTasks.slice(0);\n        nextTasks = [];\n        nextHandler = null;\n\n        for (var i = 0, l = tasks.length; i < l; i++) {\n            tasks[i]();\n        }\n    };\n\n    // 非标准方法，但是此方法非常吻合要求。\n    /* istanbul ignore next */\n    if (typeof setImmediate === 'function') {\n        setImmediate(nextHandler);\n    }\n    // 用MessageChannel去做setImmediate的polyfill\n    // 原理是将新的message事件加入到原有的dom events之后\n    else if (typeof MessageChannel === 'function') {\n        var channel = new MessageChannel();\n        var port = channel.port2;\n        channel.port1.onmessage = nextHandler;\n        port.postMessage(1);\n    }\n    // for native app\n    else if (isNativePromise) {\n        Promise.resolve().then(nextHandler);\n    }\n    else {\n        setTimeout(nextHandler, 0);\n    }\n}\n\n// exports = module.exports = nextTick;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file ie版本号\n */\n\n// #[begin] allua\n/**\n * 从userAgent中ie版本号的匹配信息\n *\n * @type {Array}\n */\nvar ieVersionMatch = typeof navigator !== 'undefined'\n    && navigator.userAgent.match(/(msie|trident)(\\s*|\\/)([0-9]+)/i);\n\n/**\n * ie版本号，非ie时为0\n *\n * @type {number}\n */\nvar ie = ieVersionMatch ? /* istanbul ignore next */ ieVersionMatch[3] - 0 : 0;\nif (ie && !/msie/i.test(ieVersionMatch[1])) {\n    ie += 4;\n}\n// #[end]\n\n// exports = module.exports = ie;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 是否 IE 并且小于 9\n */\n\n// var ie = require('./ie');\n\n// HACK:\n// 1. IE8下，设置innerHTML时如果以html comment开头，comment会被自动滤掉\n//    为了保证stump存在，需要设置完html后，createComment并appendChild/insertBefore\n// 2. IE8下，innerHTML还不支持custom element，所以需要用div替代，不用createElement\n// 3. 虽然IE8已经优化了字符串+连接，碎片化连接性能不再退化\n//    但是由于上面多个兼容场景都用 < 9 判断，所以字符串连接也沿用\n//    所以结果是IE8下字符串连接用的是数组join的方式\n\n// #[begin] allua\n/**\n * 是否 IE 并且小于 9\n */\nvar ieOldThan9 = ie && /* istanbul ignore next */ ie < 9;\n// #[end]\n\n// exports = module.exports = ieOldThan9;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 触发元素事件\n */\n\n/**\n * 触发元素事件\n *\n * @inner\n * @param {HTMLElement} el DOM元素\n * @param {string} eventName 事件名\n */\nfunction trigger(el, eventName) {\n    var event = document.createEvent('HTMLEvents');\n    event.initEvent(eventName, true, true);\n    el.dispatchEvent(event);\n}\n\n// exports = module.exports = trigger;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 解决 IE9 在表单元素中删除字符时不触发事件的问题\n */\n\n// var ie = require('./ie');\n// var on = require('./on');\n// var trigger = require('./trigger');\n\n// #[begin] allua\n/* istanbul ignore if */\nif (ie === 9) {\n    on(document, 'selectionchange', function () {\n        var el = document.activeElement;\n        if (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') {\n            trigger(el, 'input');\n        }\n    });\n}\n// #[end]\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 自闭合标签表\n */\n\n// var splitStr2Obj = require('../util/split-str-2-obj');\n\n/**\n * 自闭合标签列表\n *\n * @type {Object}\n */\nvar autoCloseTags = splitStr2Obj('area,base,br,col,embed,hr,img,input,link,meta,param,source,track,wbr');\n\n// exports = module.exports = autoCloseTags;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file data types\n */\n\n// var bind = require('./bind');\n// var empty = require('./empty');\n// var extend = require('./extend');\n\n// #[begin] error\nvar ANONYMOUS_CLASS_NAME = '<<anonymous>>';\n\n/**\n * 获取精确的类型\n *\n * @NOTE 如果 obj 是一个 DOMElement，我们会返回 `element`；\n *\n * @param  {*} obj 目标\n * @return {string}\n */\nfunction getDataType(obj) {\n    // 不支持element了。data应该是纯数据\n    // if (obj && obj.nodeType === 1) {\n    //     return 'element';\n    // }\n\n    return Object.prototype.toString\n        .call(obj)\n        .slice(8, -1)\n        .toLowerCase();\n}\n// #[end]\n\n/**\n * 创建链式的数据类型校验器\n *\n * @param  {Function} validate 真正的校验器\n * @return {Function}\n */\nfunction createChainableChecker(validate) {\n    /* istanbul ignore next */\n    var chainedChecker = function () {};\n    chainedChecker.isRequired = empty;\n\n    // 只在 error 功能启用时才有实际上的 dataTypes 检测\n    // #[begin] error\n    validate = validate || empty;\n    var checkType = function (isRequired, data, dataName, componentName, fullDataName) {\n\n        var dataValue = data[dataName];\n        var dataType = getDataType(dataValue);\n\n        /* istanbul ignore next */\n        componentName = componentName || ANONYMOUS_CLASS_NAME;\n\n        // 如果是 null 或 undefined，那么要提前返回啦\n        if (dataValue == null) {\n            // 是 required 就报错\n            if (isRequired) {\n                throw new Error('[SAN ERROR] '\n                    + 'The `' + dataName + '` '\n                    + 'is marked as required in `' + componentName + '`, '\n                    + 'but its value is ' + dataType\n                );\n            }\n            // 不是 required，那就是 ok 的\n            return;\n        }\n\n        validate(data, dataName, componentName, fullDataName);\n\n    };\n\n    chainedChecker = bind(checkType, null, false);\n    chainedChecker.isRequired = bind(checkType, null, true);\n    // #[end]\n\n    return chainedChecker;\n\n}\n\n// #[begin] error\n/**\n * 生成主要类型数据校验器\n *\n * @param  {string} type 主类型\n * @return {Function}\n */\nfunction createPrimaryTypeChecker(type) {\n\n    return createChainableChecker(function (data, dataName, componentName, fullDataName) {\n\n        var dataValue = data[dataName];\n        var dataType = getDataType(dataValue);\n\n        if (dataType !== type) {\n            throw new Error('[SAN ERROR] '\n                + 'Invalid ' + componentName + ' data `' + fullDataName + '` of type'\n                + '(' + dataType + ' supplied to ' + componentName + ', '\n                + 'expected ' + type + ')'\n            );\n        }\n\n    });\n\n}\n\n\n\n/**\n * 生成 arrayOf 校验器\n *\n * @param  {Function} arrayItemChecker 数组中每项数据的校验器\n * @return {Function}\n */\nfunction createArrayOfChecker(arrayItemChecker) {\n\n    return createChainableChecker(function (data, dataName, componentName, fullDataName) {\n\n        if (typeof arrayItemChecker !== 'function') {\n            throw new Error('[SAN ERROR] '\n                + 'Data `' + dataName + '` of `' + componentName + '` has invalid '\n                + 'DataType notation inside `arrayOf`, expected `function`'\n            );\n        }\n\n        var dataValue = data[dataName];\n        var dataType = getDataType(dataValue);\n\n        if (dataType !== 'array') {\n            throw new Error('[SAN ERROR] '\n                + 'Invalid ' + componentName + ' data `' + fullDataName + '` of type'\n                + '(' + dataType + ' supplied to ' + componentName + ', '\n                + 'expected array)'\n            );\n        }\n\n        for (var i = 0, len = dataValue.length; i < len; i++) {\n            arrayItemChecker(dataValue, i, componentName, fullDataName + '[' + i + ']');\n        }\n\n    });\n\n}\n\n/**\n * 生成 instanceOf 检测器\n *\n * @param  {Function|Class} expectedClass 期待的类\n * @return {Function}\n */\nfunction createInstanceOfChecker(expectedClass) {\n\n    return createChainableChecker(function (data, dataName, componentName, fullDataName) {\n\n        var dataValue = data[dataName];\n\n        if (dataValue instanceof expectedClass) {\n            return;\n        }\n\n        var dataValueClassName = dataValue.constructor && dataValue.constructor.name\n            ? dataValue.constructor.name\n            : /* istanbul ignore next */ ANONYMOUS_CLASS_NAME;\n\n        /* istanbul ignore next */\n        var expectedClassName = expectedClass.name || ANONYMOUS_CLASS_NAME;\n\n        throw new Error('[SAN ERROR] '\n            + 'Invalid ' + componentName + ' data `' + fullDataName + '` of type'\n            + '(' + dataValueClassName + ' supplied to ' + componentName + ', '\n            + 'expected instance of ' + expectedClassName + ')'\n        );\n\n\n    });\n\n}\n\n/**\n * 生成 shape 校验器\n *\n * @param  {Object} shapeTypes shape 校验规则\n * @return {Function}\n */\nfunction createShapeChecker(shapeTypes) {\n\n    return createChainableChecker(function (data, dataName, componentName, fullDataName) {\n\n        if (getDataType(shapeTypes) !== 'object') {\n            throw new Error('[SAN ERROR] '\n                + 'Data `' + fullDataName + '` of `' + componentName + '` has invalid '\n                + 'DataType notation inside `shape`, expected `object`'\n            );\n        }\n\n        var dataValue = data[dataName];\n        var dataType = getDataType(dataValue);\n\n        if (dataType !== 'object') {\n            throw new Error('[SAN ERROR] '\n                + 'Invalid ' + componentName + ' data `' + fullDataName + '` of type'\n                + '(' + dataType + ' supplied to ' + componentName + ', '\n                + 'expected object)'\n            );\n        }\n\n        for (var shapeKeyName in shapeTypes) {\n            /* istanbul ignore else  */\n            if (shapeTypes.hasOwnProperty(shapeKeyName)) {\n                var checker = shapeTypes[shapeKeyName];\n                if (typeof checker === 'function') {\n                    checker(dataValue, shapeKeyName, componentName, fullDataName + '.' + shapeKeyName);\n                }\n            }\n        }\n\n    });\n\n}\n\n/**\n * 生成 oneOf 校验器\n *\n * @param  {Array} expectedEnumValues 期待的枚举值\n * @return {Function}\n */\nfunction createOneOfChecker(expectedEnumValues) {\n\n    return createChainableChecker(function (data, dataName, componentName, fullDataName) {\n\n        if (getDataType(expectedEnumValues) !== 'array') {\n            throw new Error('[SAN ERROR] '\n                + 'Data `' + fullDataName + '` of `' + componentName + '` has invalid '\n                + 'DataType notation inside `oneOf`, array is expected.'\n            );\n        }\n\n        var dataValue = data[dataName];\n\n        for (var i = 0, len = expectedEnumValues.length; i < len; i++) {\n            if (dataValue === expectedEnumValues[i]) {\n                return;\n            }\n        }\n\n        throw new Error('[SAN ERROR] '\n            + 'Invalid ' + componentName + ' data `' + fullDataName + '` of value'\n            + '(`' + dataValue + '` supplied to ' + componentName + ', '\n            + 'expected one of ' + expectedEnumValues.join(',') + ')'\n        );\n\n    });\n\n}\n\n/**\n * 生成 oneOfType 校验器\n *\n * @param  {Array<Function>} expectedEnumOfTypeValues 期待的枚举类型\n * @return {Function}\n */\nfunction createOneOfTypeChecker(expectedEnumOfTypeValues) {\n\n    return createChainableChecker(function (data, dataName, componentName, fullDataName) {\n\n        if (getDataType(expectedEnumOfTypeValues) !== 'array') {\n            throw new Error('[SAN ERROR] '\n                + 'Data `' + dataName + '` of `' + componentName + '` has invalid '\n                + 'DataType notation inside `oneOf`, array is expected.'\n            );\n        }\n\n        var dataValue = data[dataName];\n\n        for (var i = 0, len = expectedEnumOfTypeValues.length; i < len; i++) {\n\n            var checker = expectedEnumOfTypeValues[i];\n\n            if (typeof checker !== 'function') {\n                continue;\n            }\n\n            try {\n                checker(data, dataName, componentName, fullDataName);\n                // 如果 checker 完成校验没报错，那就返回了\n                return;\n            }\n            catch (e) {\n                // 如果有错误，那么应该把错误吞掉\n            }\n\n        }\n\n        // 所有的可接受 type 都失败了，才丢一个异常\n        throw new Error('[SAN ERROR] '\n            + 'Invalid ' + componentName + ' data `' + dataName + '` of value'\n            + '(`' + dataValue + '` supplied to ' + componentName + ')'\n        );\n\n    });\n\n}\n\n/**\n * 生成 objectOf 校验器\n *\n * @param  {Function} typeChecker 对象属性值校验器\n * @return {Function}\n */\nfunction createObjectOfChecker(typeChecker) {\n\n    return createChainableChecker(function (data, dataName, componentName, fullDataName) {\n\n        if (typeof typeChecker !== 'function') {\n            throw new Error('[SAN ERROR] '\n                + 'Data `' + dataName + '` of `' + componentName + '` has invalid '\n                + 'DataType notation inside `objectOf`, expected function'\n            );\n        }\n\n        var dataValue = data[dataName];\n        var dataType = getDataType(dataValue);\n\n        if (dataType !== 'object') {\n            throw new Error('[SAN ERROR] '\n                + 'Invalid ' + componentName + ' data `' + dataName + '` of type'\n                + '(' + dataType + ' supplied to ' + componentName + ', '\n                + 'expected object)'\n            );\n        }\n\n        for (var dataKeyName in dataValue) {\n            /* istanbul ignore else  */\n            if (dataValue.hasOwnProperty(dataKeyName)) {\n                typeChecker(\n                    dataValue,\n                    dataKeyName,\n                    componentName,\n                    fullDataName + '.' + dataKeyName\n                );\n            }\n        }\n\n\n    });\n\n}\n\n/**\n * 生成 exact 校验器\n *\n * @param  {Object} shapeTypes object 形态定义\n * @return {Function}\n */\nfunction createExactChecker(shapeTypes) {\n\n    return createChainableChecker(function (data, dataName, componentName, fullDataName, secret) {\n\n        if (getDataType(shapeTypes) !== 'object') {\n            throw new Error('[SAN ERROR] '\n                + 'Data `' + dataName + '` of `' + componentName + '` has invalid '\n                + 'DataType notation inside `exact`'\n            );\n        }\n\n        var dataValue = data[dataName];\n        var dataValueType = getDataType(dataValue);\n\n        if (dataValueType !== 'object') {\n            throw new Error('[SAN ERROR] '\n                + 'Invalid data `' + fullDataName + '` of type `' + dataValueType + '`'\n                + '(supplied to ' + componentName + ', expected `object`)'\n            );\n        }\n\n        var allKeys = {};\n\n        // 先合入 shapeTypes\n        extend(allKeys, shapeTypes);\n        // 再合入 dataValue\n        extend(allKeys, dataValue);\n        // 保证 allKeys 的类型正确\n\n        for (var key in allKeys) {\n            /* istanbul ignore else  */\n            if (allKeys.hasOwnProperty(key)) {\n                var checker = shapeTypes[key];\n\n                // dataValue 中有一个多余的数据项\n                if (!checker) {\n                    throw new Error('[SAN ERROR] '\n                        + 'Invalid data `' + fullDataName + '` key `' + key + '` '\n                        + 'supplied to `' + componentName + '`. '\n                        + '(`' + key + '` is not defined in `DataTypes.exact`)'\n                    );\n                }\n\n                if (!(key in dataValue)) {\n                    throw new Error('[SAN ERROR] '\n                        + 'Invalid data `' + fullDataName + '` key `' + key + '` '\n                        + 'supplied to `' + componentName + '`. '\n                        + '(`' + key + '` is marked `required` in `DataTypes.exact`)'\n                    );\n                }\n\n                checker(\n                    dataValue,\n                    key,\n                    componentName,\n                    fullDataName + '.' + key,\n                    secret\n                );\n\n            }\n        }\n\n    });\n\n}\n// #[end]\n\n\n\n/* eslint-disable fecs-valid-var-jsdoc */\nvar DataTypes = {\n    array: createChainableChecker(),\n    object: createChainableChecker(),\n    func: createChainableChecker(),\n    string: createChainableChecker(),\n    number: createChainableChecker(),\n    bool: createChainableChecker(),\n    symbol: createChainableChecker(),\n    any: createChainableChecker,\n    arrayOf: createChainableChecker,\n    instanceOf: createChainableChecker,\n    shape: createChainableChecker,\n    oneOf: createChainableChecker,\n    oneOfType: createChainableChecker,\n    objectOf: createChainableChecker,\n    exact: createChainableChecker\n};\n\n// #[begin] error\nDataTypes = {\n\n    any: createChainableChecker(),\n\n    // 类型检测\n    array: createPrimaryTypeChecker('array'),\n    object: createPrimaryTypeChecker('object'),\n    func: createPrimaryTypeChecker('function'),\n    string: createPrimaryTypeChecker('string'),\n    number: createPrimaryTypeChecker('number'),\n    bool: createPrimaryTypeChecker('boolean'),\n    symbol: createPrimaryTypeChecker('symbol'),\n\n    // 复合类型检测\n    arrayOf: createArrayOfChecker,\n    instanceOf: createInstanceOfChecker,\n    shape: createShapeChecker,\n    oneOf: createOneOfChecker,\n    oneOfType: createOneOfTypeChecker,\n    objectOf: createObjectOfChecker,\n    exact: createExactChecker\n\n};\n/* eslint-enable fecs-valid-var-jsdoc */\n// #[end]\n\n\n// module.exports = DataTypes;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 创建数据检测函数\n */\n\n\n// #[begin] error\n\n/**\n * 创建数据检测函数\n *\n * @param  {Object} dataTypes     数据格式\n * @param  {string} componentName 组件名\n * @return {Function}\n */\nfunction createDataTypesChecker(dataTypes, componentName) {\n\n    /**\n     * 校验 data 是否满足 data types 的格式\n     *\n     * @param  {*} data 数据\n     */\n    return function (data) {\n\n        for (var dataTypeName in dataTypes) {\n            /* istanbul ignore else  */\n            if (dataTypes.hasOwnProperty(dataTypeName)) {\n\n                var dataTypeChecker = dataTypes[dataTypeName];\n\n                if (typeof dataTypeChecker !== 'function') {\n                    throw new Error('[SAN ERROR] '\n                        + componentName + ':' + dataTypeName + ' is invalid; '\n                        + 'it must be a function, usually from san.DataTypes'\n                    );\n                }\n\n                dataTypeChecker(\n                    data,\n                    dataTypeName,\n                    componentName,\n                    dataTypeName\n                );\n\n\n            }\n        }\n\n    };\n\n}\n\n// #[end]\n\n// module.exports = createDataTypesChecker;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 字符串源码读取类\n */\n\n\n/**\n * 字符串源码读取类，用于模板字符串解析过程\n *\n * @class\n * @param {string} source 要读取的字符串\n */\nfunction Walker(source) {\n    this.source = source;\n    this.len = this.source.length;\n    this.index = 0;\n}\n\n/**\n * 获取当前字符码\n *\n * @return {number}\n */\nWalker.prototype.currentCode = function () {\n    return this.source.charCodeAt(this.index);\n};\n\n/**\n * 截取字符串片段\n *\n * @param {number} start 起始位置\n * @param {number} end 结束位置\n * @return {string}\n */\nWalker.prototype.cut = function (start, end) {\n    return this.source.slice(start, end);\n};\n\n/**\n * 向前读取字符\n *\n * @param {number} distance 读取字符数\n */\nWalker.prototype.go = function (distance) {\n    this.index += distance;\n};\n\n/**\n * 读取下一个字符，返回下一个字符的 code\n *\n * @return {number}\n */\nWalker.prototype.nextCode = function () {\n    this.go(1);\n    return this.currentCode();\n};\n\n/**\n * 获取相应位置字符的 code\n *\n * @param {number} index 字符位置\n * @return {number}\n */\nWalker.prototype.charCode = function (index) {\n    return this.source.charCodeAt(index);\n};\n\n/**\n * 向前读取字符，直到遇到指定字符再停止\n * 未指定字符时，当遇到第一个非空格、制表符的字符停止\n *\n * @param {number=} charCode 指定字符的code\n * @return {boolean} 当指定字符时，返回是否碰到指定的字符\n */\nWalker.prototype.goUntil = function (charCode) {\n    var code;\n    while (this.index < this.len && (code = this.currentCode())) {\n        switch (code) {\n            case 32: // 空格 space\n            case 9: // 制表符 tab\n            case 13: // \\r\n            case 10: // \\n\n                this.index++;\n                break;\n\n            default:\n                if (code === charCode) {\n                    this.index++;\n                    return 1;\n                }\n                return;\n        }\n    }\n};\n\n/**\n * 向前读取符合规则的字符片段，并返回规则匹配结果\n *\n * @param {RegExp} reg 字符片段的正则表达式\n * @param {boolean} isMatchStart 是否必须匹配当前位置\n * @return {Array?}\n */\nWalker.prototype.match = function (reg, isMatchStart) {\n    reg.lastIndex = this.index;\n\n    var match = reg.exec(this.source);\n    if (match && (!isMatchStart || this.index === match.index)) {\n        this.index = reg.lastIndex;\n        return match;\n    }\n};\n\n// exports = module.exports = Walker;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 表达式类型\n */\n\n/**\n * 表达式类型\n *\n * @const\n * @type {Object}\n */\nvar ExprType = {\n    STRING: 1,\n    NUMBER: 2,\n    BOOL: 3,\n    ACCESSOR: 4,\n    INTERP: 5,\n    CALL: 6,\n    TEXT: 7,\n    BINARY: 8,\n    UNARY: 9,\n    TERTIARY: 10,\n    OBJECT: 11,\n    ARRAY: 12,\n    NULL: 13\n};\n\n// exports = module.exports = ExprType;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 把 kebab case 字符串转换成 camel case\n */\n\n/**\n * 把 kebab case 字符串转换成 camel case\n *\n * @param {string} source 源字符串\n * @return {string}\n */\nfunction kebab2camel(source) {\n    return source.replace(/-+(.)/ig, function (match, alpha) {\n        return alpha.toUpperCase();\n    });\n}\n\n// exports = module.exports = kebab2camel;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file bool属性表\n */\n\n\n// var splitStr2Obj = require('../util/split-str-2-obj');\n\n/**\n * bool属性表\n *\n * @type {Object}\n */\nvar boolAttrs = splitStr2Obj(\n    'allowpaymentrequest,async,autofocus,autoplay,'\n    + 'checked,controls,default,defer,disabled,formnovalidate,'\n    + 'hidden,ismap,itemscope,loop,multiple,muted,nomodule,novalidate,'\n    + 'open,readonly,required,reversed,selected,typemustmatch'\n);\n\n// exports = module.exports = boolAttrs;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 创建访问表达式对象\n */\n\n// var ExprType = require('./expr-type');\n\n/**\n * 创建访问表达式对象\n *\n * @param {Array} paths 访问路径\n * @return {Object}\n */\nfunction createAccessor(paths) {\n    return {\n        type: 4,\n        paths: paths\n    };\n}\n\n// exports = module.exports = createAccessor;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 读取字符串\n */\n\n\n// var ExprType = require('./expr-type');\n\n/**\n * 读取字符串\n *\n * @param {Walker} walker 源码读取对象\n * @return {Object}\n */\nfunction readString(walker) {\n    var startCode = walker.currentCode();\n    var startIndex = walker.index;\n    var charCode;\n\n    walkLoop: while ((charCode = walker.nextCode())) {\n        switch (charCode) {\n            case 92: // \\\n                walker.go(1);\n                break;\n            case startCode:\n                walker.go(1);\n                break walkLoop;\n        }\n    }\n\n    var literal = walker.cut(startIndex, walker.index);\n    return {\n        type: 1,\n        // 处理字符转义\n        value: (new Function('return ' + literal))()\n    };\n}\n\n// exports = module.exports = readString;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 读取一元表达式\n */\n\n// var ExprType = require('./expr-type');\n// var readString = require('./read-string');\n// var readNumber = require('./read-number');\n// var readCall = require('./read-call');\n// var readParenthesizedExpr = require('./read-parenthesized-expr');\n// var readTertiaryExpr = require('./read-tertiary-expr');\n\nfunction postUnaryExpr(expr, operator) {\n    switch (operator) {\n        case 33:\n            var value;\n            switch (expr.type) {\n                case 2:\n                case 1:\n                case 3:\n                    value = !expr.value;\n                    break;\n                case 12:\n                case 11:\n                    value = false;\n                    break;\n                case 13:\n                    value = true;\n                    break;\n            }\n\n            if (value != null) {\n                return {\n                    type: 3,\n                    value: value\n                };\n            }\n            break;\n\n        case 43:\n            switch (expr.type) {\n                case 2:\n                case 1:\n                case 3:\n                    return {\n                        type: 2,\n                        value: +expr.value\n                    };\n            }\n            break;\n\n        case 45:\n            switch (expr.type) {\n                case 2:\n                case 1:\n                case 3:\n                    return {\n                        type: 2,\n                        value: -expr.value\n                    };\n            }\n            break;\n    }\n\n    return {\n        type: 9,\n        expr: expr,\n        operator: operator\n    };\n}\n\n/**\n * 读取一元表达式\n *\n * @param {Walker} walker 源码读取对象\n * @return {Object}\n */\nfunction readUnaryExpr(walker) {\n    walker.goUntil();\n\n    var currentCode = walker.currentCode();\n    switch (currentCode) {\n        case 33: // !\n        case 43: // +\n        case 45: // -\n            walker.go(1);\n            return postUnaryExpr(readUnaryExpr(walker), currentCode);\n\n        case 34: // \"\n        case 39: // '\n            return readString(walker);\n\n        case 48: // number\n        case 49:\n        case 50:\n        case 51:\n        case 52:\n        case 53:\n        case 54:\n        case 55:\n        case 56:\n        case 57:\n            return readNumber(walker);\n\n        case 40: // (\n            return readParenthesizedExpr(walker);\n\n        // array literal\n        case 91: // [\n            walker.go(1);\n            var arrItems = [];\n            while (!walker.goUntil(93)) { // ]\n                var item = {};\n                arrItems.push(item);\n\n                if (walker.currentCode() === 46 && walker.match(/\\.\\.\\.\\s*/g)) {\n                    item.spread = true;\n                }\n\n                item.expr = readTertiaryExpr(walker);\n                walker.goUntil(44); // ,\n            }\n\n            return {\n                type: 12,\n                items: arrItems\n            };\n\n        // object literal\n        case 123: // {\n            walker.go(1);\n            var objItems = [];\n\n            while (!walker.goUntil(125)) { // }\n                var item = {};\n                objItems.push(item);\n\n                if (walker.currentCode() === 46 && walker.match(/\\.\\.\\.\\s*/g)) {\n                    item.spread = true;\n                    item.expr = readTertiaryExpr(walker);\n                }\n                else {\n                    // #[begin] error\n                    var walkerIndexBeforeName = walker.index;\n                    // #[end]\n\n                    item.name = readUnaryExpr(walker);\n\n                    // #[begin] error\n                    if (item.name.type > 4) {\n                        throw new Error(\n                            '[SAN FATAL] unexpect object name: '\n                            + walker.cut(walkerIndexBeforeName, walker.index)\n                        );\n                    }\n                    // #[end]\n\n                    if (walker.goUntil(58)) { // :\n                        item.expr = readTertiaryExpr(walker);\n                    }\n                    else {\n                        item.expr = item.name;\n                    }\n\n                    if (item.name.type === 4) {\n                        item.name = item.name.paths[0];\n                    }\n                }\n\n                walker.goUntil(44); // ,\n            }\n\n            return {\n                type: 11,\n                items: objItems\n            };\n    }\n\n    return readCall(walker);\n}\n\n// exports = module.exports = readUnaryExpr;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 读取数字\n */\n\n\n// var ExprType = require('./expr-type');\n// var readUnaryExpr = require('./read-unary-expr');\n\n/**\n * 读取数字\n *\n * @inner\n * @param {Walker} walker 源码读取对象\n * @return {Object}\n */\nfunction readNumber(walker) {\n    var match = walker.match(/\\s*([0-9]+(\\.[0-9]+)?)/g, 1);\n\n    if (match) {\n        return {\n            type: 2,\n            value: +match[1]\n        };\n    }\n}\n\n// exports = module.exports = readNumber;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 读取ident\n */\n\n/**\n * 读取ident\n * 这里的 ident 指标识符(identifier)，也就是通常意义上的变量名\n * 这里默认的变量名规则为：由美元符号($)、数字、字母或者下划线(_)构成的字符串\n *\n * @inner\n * @param {Walker} walker 源码读取对象\n * @return {string}\n */\nfunction readIdent(walker) {\n    var match = walker.match(/\\s*([\\$0-9a-z_]+)/ig, 1);\n\n    // #[begin] error\n    if (!match) {\n        throw new Error('[SAN FATAL] expect an ident: ' + walker.cut(walker.index));\n    }\n    // #[end]\n\n    return match[1];\n}\n\n// exports = module.exports = readIdent;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 读取三元表达式\n */\n\n// var ExprType = require('./expr-type');\n// var readLogicalORExpr = require('./read-logical-or-expr');\n\n/**\n * 读取三元表达式\n *\n * @param {Walker} walker 源码读取对象\n * @return {Object}\n */\nfunction readTertiaryExpr(walker) {\n    var conditional = readLogicalORExpr(walker);\n    walker.goUntil();\n\n    if (walker.currentCode() === 63) { // ?\n        walker.go(1);\n        var yesExpr = readTertiaryExpr(walker);\n        walker.goUntil();\n\n        if (walker.currentCode() === 58) { // :\n            walker.go(1);\n            return {\n                type: 10,\n                segs: [\n                    conditional,\n                    yesExpr,\n                    readTertiaryExpr(walker)\n                ]\n            };\n        }\n    }\n\n    return conditional;\n}\n\n// exports = module.exports = readTertiaryExpr;\n\n\n/**\n * Copyright (c) Baidu Inc. All rights reserved.\n *\n * This source code is licensed under the MIT license.\n * See LICENSE file in the project root for license information.\n *\n * @file 读取访问表达式\n */\n\n// var ExprType = require('./expr-type');\n// var createAccessor = require('./create-accessor');\n// var readIdent = require('./read-ident');\n// var readTertiaryExpr = require('./read-tertiary-expr');\n\n/**\n * 读取访问表达式\n *\n * @param {Walker} walker 源码读取对象\n * @return {Object}\n */\nfunction readAccessor(walker) {\n    var firstSeg = readIdent(walker);\n    switch (firstSeg) {\n        case 'true':\n        case 'false':\n            return {\n                type: 3,\n                value: firstSeg === 'true'\n            };\n        case 'null':\n            return {\n                type: 13\n            };\n    }\n\n    var result = createAccessor([\n        {\n            type: 1,\n            value: firstSeg\n        }\n    ]);\n\n    /* eslint-disable no-constant-condition */\n    accessorLoop: while (1) {\n    /* eslint-enable no-constant-condition */\n\n        switch (walker.currentCode()) {\n            case 46: // .\n                walker.go(1);\n\n                // ident as string\n