Code coverage report for ./../tap/lib/stack.js

Statements: 39.64% (44 / 111)      Branches: 28.79% (19 / 66)      Functions: 33.33% (3 / 9)      Lines: 39.64% (44 / 111)      Ignored: none     

All files » ./../tap/lib/ » stack.js
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 2239 9 9 9 9   9                                 9                                                                           9                                         9 51       51   51 51   51 51     51 51   51 51 51 51 51   51     9 51   51   51 9   42           42   25   42     42     42     42 42   42     42 42     42 42     42     9                                           9                                                                                                
exports.capture = capture
exports.captureString = captureString
exports.at = at
exports.parseLine = parseLine
exports.clean = clean
 
var cwd = process.cwd()
// var methods =[
//   'getThis',
//   'getFunction',
//   'getTypeName',
//   'getFunctionName',
//   'getMethodName',
//   'getFileName',
//   'getLineNumber',
//   'getColumnNumber',
//   'getEvalOrigin',
//   'isToplevel',
//   'isEval',
//   'isNative',
//   'isConstructor'
// ]
 
function clean (stack) {
  if (!Array.isArray(stack))
    stack = stack.split('\n')
 
  var internals = [
    /\(domain.js:[0-9]+:[0-9]+\)$/,
    /\(events.js:[0-9]+:[0-9]+\)$/,
    /\(node.js:[0-9]+:[0-9]+\)$/,
    /\(timers.js:[0-9]+:[0-9]+\)$/,
    /\(module.js:[0-9]+:[0-9]+\)$/,
    /GeneratorFunctionPrototype.next \(native\)/,
    /node_modules[\\\/]tap[\\\/](.*?)\.js:[0-9]:[0-9]\)?$/
  ]
 
  if (!(/^\s*at /.test(stack[0])) &&
       (/^\s*at /.test(stack[1])))
    stack = stack.slice(1)
 
  stack = stack.map(function (st) {
    if (internals.some(function (internal) {
      return internal.test(st)
    })) {
      return null
    }
    return st.trim()
      .replace(/^\s*at /, '')
      .replace(cwd + '/', '')
      .replace(cwd + '\\', '')
  }).filter(function (st) {
    return st
  }).join('\n').trim()
 
  if (stack)
    return stack + '\n'
  else
    return null
}
 
function captureString (limit, fn) {
  if (typeof limit === 'function') {
    fn = limit
    limit = Infinity
  }
  if (!fn)
    fn = captureString
 
  var limitBefore = Error.stackTraceLimit
  if (limit)
    Error.stackTraceLimit = limit
 
  var obj = {}
 
  Error.captureStackTrace(obj, fn)
  var stack = obj.stack
  Error.stackTraceLimit = limitBefore
 
  return clean(stack)
}
 
function capture (limit, fn) {
  Iif (typeof limit === 'function') {
    fn = limit
    limit = Infinity
  }
  Iif (!fn)
    fn = capture
  var prepBefore = Error.prepareStackTrace
  var limitBefore = Error.stackTraceLimit
 
  Error.prepareStackTrace = function (obj, site) {
    return site
  }
 
  Eif (limit)
    Error.stackTraceLimit = limit
 
  var obj = {}
  Error.captureStackTrace(obj, fn)
  var stack = obj.stack
  Error.prepareStackTrace = prepBefore
  Error.stackTraceLimit = limitBefore
 
  return stack
}
 
function at (fn) {
  Iif (!fn)
    fn = at
  var site = capture(1, fn)[0]
 
  if (!site)
    return {}
 
  var res = {
    file: site.getFileName(),
    line: site.getLineNumber(),
    column: site.getColumnNumber()
  }
 
  if (res.file.indexOf(cwd + '/') === 0 ||
      res.file.indexOf(cwd + '\\') === 0)
    res.file = res.file.substr(cwd.length + 1)
 
  Iif (site.isConstructor())
    res.constructor = true
 
  Iif (site.isEval())
    res.evalOrigin = site.getEvalOrigin()
 
  Iif (site.isNative())
    res.native = true
 
  try {
    var typename = site.getTypeName()
  } catch (er) {}
  Iif (typename && typename !== 'Object' && typename !== '[object Object]')
    res.type = typename
 
  var fname = site.getFunctionName()
  Iif (fname)
    res.function = fname
 
  var meth = site.getMethodName()
  Iif (meth && fname !== meth)
    res.method = meth
 
  return res
}
 
var re = new RegExp(
  '^' +
  // Sometimes we strip out the '    at' because it's noisy
  '(?:\\s*at )?' +
  // $1 = ctor if 'new'
  '(?:(new) )?' +
  // Object.method [as foo] (, maybe
  // $2 = function name
  // $3 = method name
  '(?:([^\\(\\[]*)(?: \\[as ([^\\]]+)\\])? \\()?' +
  // (eval at <anonymous> (file.js:1:1), 
  // $4 = eval origin
  // $5:$6:$7 are eval file/line/col, but not normally reported
  '(?:eval at ([^ ]+) \\(([^\\)]+):([0-9]+):([0-9]+)\\), )?' +
  // file:line:col
  // $8:$9:$10
  // $11 = 'native' if native
  '(?:([^\\)]+):([0-9]+):([0-9]+)|(native))' +
  // maybe close the paren, then end
  '\\)?$'
)
 
function parseLine (line) {
  var match = line.match(re)
  if (!match)
    return null
 
  var ctor = match[1] === 'new'
  var fname = match[2]
  var meth = match[3]
  var evalOrigin = match[4]
  var evalFile = +match[5]
  var evalLine = +match[6]
  var evalCol = +match[7]
  var file = match[8]
  var lnum = match[9]
  var col = match[10]
  var native = match[11] === 'native'
 
  var res = {
    file: file,
    line: +lnum,
    column: +col
  }
 
  if (res.file &&
      (res.file.indexOf(cwd + '/') === 0 ||
      res.file.indexOf(cwd + '\\') === 0))
    res.file = res.file.substr(cwd.length + 1)
 
  if (ctor)
    res.constructor = true
 
  if (evalOrigin) {
    res.evalOrigin = evalOrigin
    res.evalLine = evalLine
    res.evalColumn = evalCol
  }
 
  if (native)
    res.native = true
 
  if (fname)
    res.function = fname
 
  if (meth && fname !== meth)
    res.method = meth
 
  return res
}