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avalon2

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an elegant efficient express mvvm framework

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<!doctype html> <html lang="en"> <head> <title>Code coverage report for directives/for.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../prettify.css" /> <link rel="stylesheet" href="../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../index.html">all files</a> / <a href="index.html">directives/</a> for.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> <span class="strong">97.35% </span> <span class="quiet">Statements</span> <span class='fraction'>184/189</span> </div> <div class='fl pad1y space-right2'> <span class="strong">89.47% </span> <span class="quiet">Branches</span> <span class='fraction'>68/76</span> </div> <div class='fl pad1y space-right2'> <span class="strong">92.86% </span> <span class="quiet">Functions</span> <span class='fraction'>26/28</span> </div> <div class='fl pad1y space-right2'> <span class="strong">97.35% </span> <span class="quiet">Lines</span> <span class='fraction'>184/189</span> </div> <div class='fl pad1y'> <span class="strong">1 statement, 2 branches</span> <span class="quiet">Ignored</span> &nbsp;&nbsp;&nbsp;&nbsp; </div> </div> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 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class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">48×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">48×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-yes">31×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">47×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">71×</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">71×</span> <span class="cline-any cline-yes">71×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">71×</span> <span class="cline-any cline-yes">70×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">70×</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">70×</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">70×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes">215×</span> <span class="cline-any cline-yes">215×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes">71×</span> <span class="cline-any cline-yes">70×</span> <span class="cline-any cline-yes">70×</span> <span class="cline-any cline-yes">70×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span 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cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">70×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-yes">127×</span> <span class="cline-any cline-yes">127×</span> <span class="cline-any cline-yes">127×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-yes">45×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">89×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">104×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">104×</span> <span class="cline-any cline-yes">48×</span> <span class="cline-any cline-yes">48×</span> <span class="cline-any cline-yes">48×</span> <span class="cline-any cline-yes">48×</span> <span class="cline-any cline-yes">48×</span> <span class="cline-any cline-yes">48×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">56×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">56×</span> <span class="cline-any cline-yes">56×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">18×</span> <span class="cline-any cline-yes">18×</span> <span class="cline-any cline-yes">18×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">56×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">115×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-no">&nbsp;</span> <span class="cline-any cline-no">&nbsp;</span> <span class="cline-any cline-no">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes">48×</span> <span 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cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">104×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">25×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any 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class="cline-any cline-yes">145×</span> <span class="cline-any cline-yes">145×</span> <span class="cline-any cline-yes">145×</span> <span class="cline-any cline-yes">145×</span> <span class="cline-any cline-yes">145×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">145×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes">142×</span> <span class="cline-any cline-yes">142×</span> <span class="cline-any cline-yes">86×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">86×</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">84×</span> <span class="cline-any cline-yes">84×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes">231×</span> <span class="cline-any cline-yes">231×</span> <span class="cline-any cline-yes">228×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes"></span> <span class="cline-any cline-yes">56×</span> <span class="cline-any cline-yes">56×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-yes">56×</span> <span class="cline-any cline-yes">38×</span> <span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">import { avalon, createFragment, platform, isObject, ap } from '../seed/core' &nbsp; import { VFragment } from '../vdom/VFragment' &nbsp; import { addScope, makeHandle } from '../parser/index' &nbsp; &nbsp; var rforAs = /\s+as\s+([$\w]+)/ var rident = /^[$a-zA-Z_][$a-zA-Z0-9_]*$/ var rinvalid = /^(null|undefined|NaN|window|this|\$index|\$id)$/ var rargs = /[$\w_]+/g avalon.directive('for', { delay: true, priority: 3, beforeInit: function() { var str = this.expr, asName str = str.replace(rforAs, function(a, b) { /* istanbul ignore if */ if (!rident.test(b) || rinvalid.test(b)) { avalon.error('alias ' + b + ' is invalid --- must be a valid JS identifier which is not a reserved name.') } else { asName = b } return '' }) &nbsp; var arr = str.split(' in ') var kv = arr[0].match(rargs) if (kv.length === 1) { //确保avalon._each的回调有三个参数 kv.unshift('$key') } this.expr = arr[1] this.keyName = kv[0] this.valName = kv[1] this.signature = avalon.makeHashCode('for') if (asName) { this.asName = asName } &nbsp; delete this.param }, init: function() { var cb = this.userCb if (typeof cb === 'string' &amp;&amp; cb) { var arr = addScope(cb, 'for') var body = makeHandle(arr[0]) this.userCb = new Function('$event', 'var __vmodel__ = this\nreturn ' + body) } this.node.forDir = this //暴露给component/index.js中的resetParentChildren方法使用 this.fragment = ['&lt;div&gt;', this.fragment, '&lt;!--', this.signature, '--&gt;&lt;/div&gt;'].join('') this.cache = {} &nbsp; }, diff: function(newVal, oldVal) { /* istanbul ignore if */ <span class="skip-if-branch" title="if path not taken" >I</span>if (this.updating) { <span class="cstat-skip" title="statement not covered" > return</span> } &nbsp; this.updating = true var traceIds = createFragments(this, newVal) &nbsp; if (this.oldTrackIds === void 0) return true &nbsp; <span class="missing-if-branch" title="else path not taken" >E</span>if (this.oldTrackIds !== traceIds) { this.oldTrackIds = traceIds return true } &nbsp; }, update: function() { &nbsp; if (!this.preFragments) { this.fragments = this.fragments || [] mountList(this) } else { diffList(this) updateList(this) } &nbsp; if (this.userCb) { this.userCb.call(this.vm, { type: 'rendered', target: this.begin.dom, signature: this.signature }) } delete this.updating }, beforeDispose: function() { this.fragments.forEach(function(el) { el.dispose() }) } }) &nbsp; function getTraceKey(item) { var type = typeof item return item &amp;&amp; type === 'object' ? item.$hashcode : type + ':' + item } &nbsp; //创建一组fragment的虚拟DOM function createFragments(instance, obj) { if (isObject(obj)) { var array = Array.isArray(obj) var ids = [] var fragments = [], i = 0 &nbsp; instance.isArray = array if (instance.fragments) { instance.preFragments = instance.fragments avalon.each(obj, function(key, value) { var k = array ? getTraceKey(value) : <span class="branch-1 cbranch-no" title="branch not covered" >key</span> &nbsp; fragments.push({ key: k, val: value, index: i++ }) ids.push(k) }) instance.fragments = fragments } else { avalon.each(obj, function(key, value) { var k = array ? getTraceKey(value) : key fragments.push(new VFragment([], k, value, i++)) ids.push(k) }) instance.fragments = fragments } return ids.join(';;') } else { return NaN } } &nbsp; &nbsp; function mountList(instance) { var args = instance.fragments.map(function(fragment, index) { FragmentDecorator(fragment, instance, index) saveInCache(instance.cache, fragment) return fragment }) var list = instance.parentChildren var i = list.indexOf(instance.begin) list.splice.apply(list, [i + 1, 0].concat(args)) } &nbsp; function diffList(instance) { var cache = instance.cache var newCache = {} var fuzzy = [] var list = instance.preFragments &nbsp; list.forEach(function(el) { el._dispose = true }) &nbsp; instance.fragments.forEach(function(c, index) { var fragment = isInCache(cache, c.key) //取出之前的文档碎片 if (fragment) { delete fragment._dispose fragment.oldIndex = fragment.index fragment.index = index // 相当于 c.index resetVM(fragment.vm, instance.keyName) fragment.vm[instance.keyName] = instance.isArray ? index : <span class="branch-1 cbranch-no" title="branch not covered" >fragment.key</span> saveInCache(newCache, fragment) &nbsp; } else { //如果找不到就进行模糊搜索 fuzzy.push(c) } }) fuzzy.forEach(function(c) { var fragment = fuzzyMatchCache(cache, c.key) if (fragment) { //重复利用 fragment.oldIndex = fragment.index fragment.key = c.key var val = fragment.val = c.val var index = fragment.index = c.index &nbsp; fragment.vm[instance.valName] = val fragment.vm[instance.keyName] = instance.isArray ? index : <span class="branch-1 cbranch-no" title="branch not covered" >fragment.key</span> delete fragment._dispose } else { &nbsp; c = new VFragment([], c.key, c.val, c.index) fragment = FragmentDecorator(c, instance, c.index) list.push(fragment) } saveInCache(newCache, fragment) }) &nbsp; instance.fragments = list list.sort(function(a, b) { return a.index - b.index }) instance.cache = newCache } &nbsp; <span class="fstat-no" title="function not covered" >function updateItemVm(vm, top) {</span> <span class="cstat-no" title="statement not covered" > for (var i in top) {</span> <span class="cstat-no" title="statement not covered" > if (top.hasOwnProperty(i)) {</span> <span class="cstat-no" title="statement not covered" > vm[i] = top[i]</span> } } } &nbsp; function resetVM(vm, a, b) { vm.$accessors[a].value = NaN } &nbsp; &nbsp; function updateList(instance) { var before = instance.begin.dom var parent = before.parentNode var list = instance.fragments var end = instance.end.dom for (var i = 0, item; item = list[i]; i++) { if (item._dispose) { list.splice(i, 1) i-- item.dispose() continue } if (item.oldIndex !== item.index) { var f = item.toFragment() var isEnd = before.nextSibling === null parent.insertBefore(f, before.nextSibling); <span class="missing-if-branch" title="if path not taken" >I</span>if (isEnd &amp;&amp; <span class="branch-1 cbranch-no" title="branch not covered" >!parent.contains(end))</span> { <span class="cstat-no" title="statement not covered" > parent.insertBefore(end, before.nextSibling)</span> } } before = item.split } var ch = instance.parentChildren var startIndex = ch.indexOf(instance.begin) var endIndex = ch.indexOf(instance.end) &nbsp; list.splice.apply(ch, [startIndex + 1, endIndex - startIndex].concat(list)) } &nbsp; &nbsp; /** * * @param {type} fragment * @param {type} this * @param {type} index * @returns { key, val, index, oldIndex, this, dom, split, vm} */ function FragmentDecorator(fragment, instance, index) { var data = {} data[instance.keyName] = instance.isArray ? index : fragment.key data[instance.valName] = fragment.val if (instance.asName) { data[instance.asName] = instance.value } var vm = fragment.vm = platform.itemFactory(instance.vm, { data: data }) &nbsp; if (instance.isArray) { vm.$watch(instance.valName, function(a) { if (instance.value &amp;&amp; instance.value.set) { instance.value.set(vm[instance.keyName], a) } }) } else { vm.$watch(instance.valName, <span class="fstat-no" title="function not covered" >function(a) {</span> <span class="cstat-no" title="statement not covered" > instance.value[fragment.key] = a</span> }) } fragment.index = index fragment.innerRender = avalon.scan(instance.fragment, vm, function() { var oldRoot = this.root ap.push.apply(fragment.children, oldRoot.children) this.root = fragment }) return fragment } // 新位置: 旧位置 function isInCache(cache, id) { var c = cache[id] if (c) { var arr = c.arr /* istanbul ignore if*/ if (arr) { var r = arr.pop() <span class="skip-if-branch" title="else path not taken" >E</span>if (!arr.length) { c.arr = 0 } return r } delete cache[id] return c } } //[1,1,1] number1 number1_ number1__ function saveInCache(cache, component) { var trackId = component.key if (!cache[trackId]) { cache[trackId] = component } else { var c = cache[trackId] var arr = c.arr || (c.arr = []) arr.push(component) } } &nbsp; var rfuzzy = /^(string|number|boolean)/ var rkfuzzy = /^_*(string|number|boolean)/ &nbsp; function fuzzyMatchCache(cache) { var key for (var id in cache) { var key = id break } if (key) { return isInCache(cache, key) } }</pre></td></tr> </table></pre> <div class='push'></div><!-- for sticky footer --> </div><!-- /wrapper --> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Tue Dec 13 2016 18:10:11 GMT+0800 (CST) </div> </div> <script src="../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { 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