Icard/angular-clarity-master(work.../node_modules/karma/common/stringify.js

101 lines
2.5 KiB
JavaScript

var serialize = null
try {
serialize = require('dom-serialize')
} catch (e) {
// Ignore failure on IE8
}
var instanceOf = require('./util').instanceOf
function isNode (obj) {
return (obj.tagName || obj.nodeName) && obj.nodeType
}
function stringify (obj, depth) {
if (depth === 0) {
return '...'
}
if (obj === null) {
return 'null'
}
switch (typeof obj) {
case 'symbol':
return obj.toString()
case 'string':
return "'" + obj + "'"
case 'undefined':
return 'undefined'
case 'function':
try {
// function abc(a, b, c) { /* code goes here */ }
// -> function abc(a, b, c) { ... }
return obj.toString().replace(/\{[\s\S]*\}/, '{ ... }')
} catch (err) {
if (err instanceof TypeError) {
// Support older browsers
return 'function ' + (obj.name || '') + '() { ... }'
} else {
throw err
}
}
case 'boolean':
return obj ? 'true' : 'false'
case 'object':
var strs = []
if (instanceOf(obj, 'Array')) {
strs.push('[')
for (var i = 0, ii = obj.length; i < ii; i++) {
if (i) {
strs.push(', ')
}
strs.push(stringify(obj[i], depth - 1))
}
strs.push(']')
} else if (instanceOf(obj, 'Date')) {
return obj.toString()
} else if (instanceOf(obj, 'Text')) {
return obj.nodeValue
} else if (instanceOf(obj, 'Comment')) {
return '<!--' + obj.nodeValue + '-->'
} else if (obj.outerHTML) {
return obj.outerHTML
} else if (isNode(obj)) {
if (serialize) {
return serialize(obj)
} else {
return 'Skipping stringify, no support for dom-serialize'
}
} else if (instanceOf(obj, 'Error')) {
return obj.toString() + '\n' + obj.stack
} else {
var constructor = 'Object'
if (obj.constructor && typeof obj.constructor === 'function') {
constructor = obj.constructor.name
}
strs.push(constructor)
strs.push('{')
var first = true
for (var key in obj) {
if (Object.prototype.hasOwnProperty.call(obj, key)) {
if (first) {
first = false
} else {
strs.push(', ')
}
strs.push(key + ': ' + stringify(obj[key], depth - 1))
}
}
strs.push('}')
}
return strs.join('')
default:
return obj
}
}
module.exports = stringify