avalon2
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an elegant efficient express mvvm framework
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<title>Code coverage report for seed/lang.fix.js</title>
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<h1>
<a href="../index.html">all files</a> / <a href="index.html">seed/</a> lang.fix.js
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<div class='fl pad1y space-right2'>
<span class="strong">100% </span>
<span class="quiet">Statements</span>
<span class='fraction'>79/79</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">100% </span>
<span class="quiet">Branches</span>
<span class='fraction'>63/63</span>
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<div class='fl pad1y space-right2'>
<span class="strong">90.91% </span>
<span class="quiet">Functions</span>
<span class='fraction'>10/11</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">100% </span>
<span class="quiet">Lines</span>
<span class='fraction'>79/79</span>
</div>
<div class='fl pad1y'>
<span class="strong">68 statements, 9 functions, 58 branches</span>
<span class="quiet">Ignored</span>
</div>
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<div class='status-line high'></div>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">
/**
* 此模块用于修复语言的底层缺陷
*/
import { avalon, ohasOwn, ap, _slice } from './core'
function isNative(fn) {
return /\[native code\]/.test(fn)
}
/* istanbul ignore if*/
<span class="skip-if-branch" title="if path not taken" >I</span>if (!isNative('司徒正美'.trim)) {
<span class="cstat-skip" title="statement not covered" > var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g</span>
<span class="cstat-skip" title="statement not covered" > String.prototype.trim = <span class="fstat-skip" title="function not covered" >function () {</span></span>
<span class="cstat-skip" title="statement not covered" > return this.replace(rtrim, '')</span>
}
}
var hasDontEnumBug = !({
'toString': null
}).propertyIsEnumerable('toString'),
hasProtoEnumBug = (<span class="fstat-no" title="function not covered" >function () {</span>
}).propertyIsEnumerable('prototype'),
dontEnums = [
'toString',
'toLocaleString',
'valueOf',
'hasOwnProperty',
'isPrototypeOf',
'propertyIsEnumerable',
'constructor'
],
dontEnumsLength = dontEnums.length;
/* istanbul ignore if*/
<span class="skip-if-branch" title="if path not taken" >I</span>if (!isNative(Object.keys)) {
<span class="cstat-skip" title="statement not covered" > Object.keys = <span class="fstat-skip" title="function not covered" >function (object) {</span> //ecma262v5 15.2.3.14</span>
<span class="cstat-skip" title="statement not covered" > var theKeys = []</span>
<span class="cstat-skip" title="statement not covered" > var skipProto = hasProtoEnumBug && typeof object === 'function'</span>
<span class="cstat-skip" title="statement not covered" > if (typeof object === 'string' || (object && object.callee)) {</span>
<span class="cstat-skip" title="statement not covered" > for (var i = 0; i < object.length; ++i) {</span>
<span class="cstat-skip" title="statement not covered" > theKeys.push(String(i))</span>
}
} else {
<span class="cstat-skip" title="statement not covered" > for (var name in object) {</span>
<span class="cstat-skip" title="statement not covered" > if (!(skipProto && name === 'prototype') &&</span>
ohasOwn.call(object, name)) {
<span class="cstat-skip" title="statement not covered" > theKeys.push(String(name))</span>
}
}
}
<span class="cstat-skip" title="statement not covered" > if (hasDontEnumBug) {</span>
<span class="cstat-skip" title="statement not covered" > var ctor = object.constructor,</span>
skipConstructor = ctor && ctor.prototype === object
<span class="cstat-skip" title="statement not covered" > for (var j = 0; j < dontEnumsLength; j++) {</span>
<span class="cstat-skip" title="statement not covered" > var dontEnum = dontEnums[j]</span>
<span class="cstat-skip" title="statement not covered" > if (!(skipConstructor && dontEnum === 'constructor') && ohasOwn.call(object, dontEnum)) {</span>
<span class="cstat-skip" title="statement not covered" > theKeys.push(dontEnum)</span>
}
}
}
<span class="cstat-skip" title="statement not covered" > return theKeys</span>
}
}
/* istanbul ignore if*/
<span class="skip-if-branch" title="if path not taken" >I</span>if (!isNative(Array.isArray)) {
<span class="cstat-skip" title="statement not covered" > Array.isArray = <span class="fstat-skip" title="function not covered" >function (a) {</span></span>
<span class="cstat-skip" title="statement not covered" > return Object.prototype.toString.call(a) === '[object Array]'</span>
}
}
/* istanbul ignore if*/
<span class="skip-if-branch" title="if path not taken" >I</span>if (!isNative(isNative.bind)) {
/* istanbul ignore next*/
<span class="cstat-skip" title="statement not covered" > Function.prototype.bind = <span class="fstat-skip" title="function not covered" >function (scope) {</span></span>
<span class="cstat-skip" title="statement not covered" > if (arguments.length < 2 && scope === void 0)</span>
<span class="cstat-skip" title="statement not covered" > return this</span>
<span class="cstat-skip" title="statement not covered" > var fn = this,</span>
argv = arguments
<span class="cstat-skip" title="statement not covered" > return <span class="fstat-skip" title="function not covered" >function () {</span></span>
<span class="cstat-skip" title="statement not covered" > var args = [],</span>
i
<span class="cstat-skip" title="statement not covered" > for (i = 1; i < argv.length; i++)</span>
<span class="cstat-skip" title="statement not covered" > args.push(argv[i])</span>
<span class="cstat-skip" title="statement not covered" > for (i = 0; i < arguments.length; i++)</span>
<span class="cstat-skip" title="statement not covered" > args.push(arguments[i])</span>
<span class="cstat-skip" title="statement not covered" > return fn.apply(scope, args)</span>
}
}
}
//https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/slice
/**
* Shim for "fixing" IE's lack of support (IE < 9) for applying slice
* on host objects like NamedNodeMap, NodeList, and HTMLCollection
* (technically, since host objects have been implementation-dependent,
* at least before ES6, IE hasn't needed to work this way).
* Also works on strings, fixes IE < 9 to allow an explicit undefined
* for the 2nd argument (as in Firefox), and prevents errors when
* called on other DOM objects.
*/
try {
// Can't be used with DOM elements in IE < 9
_slice.call(avalon.document.documentElement)
} catch (e) { // Fails in IE < 9
// This will work for genuine arrays, array-like objects,
// NamedNodeMap (attributes, entities, notations),
// NodeList (e.g., getElementsByTagName), HTMLCollection (e.g., childNodes),
// and will not fail on other DOM objects (as do DOM elements in IE < 9)
/* istanbul ignore next*/
<span class="cstat-skip" title="statement not covered" > ap.slice = <span class="fstat-skip" title="function not covered" >function (begin, end) {</span></span>
// IE < 9 gets unhappy with an undefined end argument
<span class="cstat-skip" title="statement not covered" > end = (typeof end !== 'undefined') ? end : this.length</span>
// For native Array objects, we use the native slice function
<span class="cstat-skip" title="statement not covered" > if (Array.isArray(this)) {</span>
<span class="cstat-skip" title="statement not covered" > return _slice.call(this, begin, end)</span>
}
// For array like object we handle it ourselves.
<span class="cstat-skip" title="statement not covered" > var i, cloned = [],</span>
size, len = this.length
// Handle negative value for "begin"
<span class="cstat-skip" title="statement not covered" > var start = begin || 0</span>
<span class="cstat-skip" title="statement not covered" > start = (start >= 0) ? start : len + start</span>
// Handle negative value for "end"
<span class="cstat-skip" title="statement not covered" > var upTo = (end) ? end : len</span>
<span class="cstat-skip" title="statement not covered" > if (end < 0) {</span>
<span class="cstat-skip" title="statement not covered" > upTo = len + end</span>
}
// Actual expected size of the slice
<span class="cstat-skip" title="statement not covered" > size = upTo - start</span>
<span class="cstat-skip" title="statement not covered" > if (size > 0) {</span>
<span class="cstat-skip" title="statement not covered" > cloned = new Array(size)</span>
<span class="cstat-skip" title="statement not covered" > if (this.charAt) {</span>
<span class="cstat-skip" title="statement not covered" > for (i = 0; i < size; i++) {</span>
<span class="cstat-skip" title="statement not covered" > cloned[i] = this.charAt(start + i)</span>
}
} else {
<span class="cstat-skip" title="statement not covered" > for (i = 0; i < size; i++) {</span>
<span class="cstat-skip" title="statement not covered" > cloned[i] = this[start + i]</span>
}
}
}
<span class="cstat-skip" title="statement not covered" > return cloned</span>
}
}
/* istanbul ignore next*/
<span class="fstat-skip" title="function not covered" >function iterator(vars, body, ret) {</span>
<span class="cstat-skip" title="statement not covered" > var fun = 'for(var ' + vars + 'i=0,n = this.length; i < n; i++){' +</span>
body.replace('_', '((i in this) && fn.call(scope,this[i],i,this))') +
'}' + ret
/* jshint ignore:start */
<span class="cstat-skip" title="statement not covered" > return Function('fn,scope', fun)</span>
/* jshint ignore:end */
}
/* istanbul ignore if*/
<span class="skip-if-branch" title="if path not taken" >I</span>if (!isNative(ap.map)) {
<span class="cstat-skip" title="statement not covered" > avalon.shadowCopy(ap, {</span>
//定位操作，返回数组中第一个等于给定参数的元素的索引值。
indexOf: <span class="fstat-skip" title="function not covered" >function (item, index) {</span>
<span class="cstat-skip" title="statement not covered" > var n = this.length,</span>
i = ~~index
<span class="cstat-skip" title="statement not covered" > if (i < 0)</span>
<span class="cstat-skip" title="statement not covered" > i += n</span>
<span class="cstat-skip" title="statement not covered" > for (; i < n; i++)</span>
<span class="cstat-skip" title="statement not covered" > if (this[i] === item)</span>
<span class="cstat-skip" title="statement not covered" > return i</span>
<span class="cstat-skip" title="statement not covered" > return -1</span>
},
//定位操作，同上，不过是从后遍历。
lastIndexOf: <span class="fstat-skip" title="function not covered" >function (item, index) {</span>
<span class="cstat-skip" title="statement not covered" > var n = this.length,</span>
i = index == null ? n - 1 : index
<span class="cstat-skip" title="statement not covered" > if (i < 0)</span>
<span class="cstat-skip" title="statement not covered" > i = Math.max(0, n + i)</span>
<span class="cstat-skip" title="statement not covered" > for (; i >= 0; i--)</span>
<span class="cstat-skip" title="statement not covered" > if (this[i] === item)</span>
<span class="cstat-skip" title="statement not covered" > return i</span>
<span class="cstat-skip" title="statement not covered" > return -1</span>
},
//迭代操作，将数组的元素挨个儿传入一个函数中执行。Prototype.js的对应名字为each。
forEach: iterator('', '_', ''),
//迭代类 在数组中的每个项上运行一个函数，如果此函数的值为真，则此元素作为新数组的元素收集起来，并返回新数组
filter: iterator('r=[],j=0,', 'if(_)r[j++]=this[i]', 'return r'),
//收集操作，将数组的元素挨个儿传入一个函数中执行，然后把它们的返回值组成一个新数组返回。Prototype.js的对应名字为collect。
map: iterator('r=[],', 'r[i]=_', 'return r'),
//只要数组中有一个元素满足条件（放进给定函数返回true），那么它就返回true。Prototype.js的对应名字为any。
some: iterator('', 'if(_)return true', 'return false'),
//只有数组中的元素都满足条件（放进给定函数返回true），它才返回true。Prototype.js的对应名字为all。
every: iterator('', 'if(!_)return false', 'return true')
})
}
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