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How to use Walker method in istanbul

Best JavaScript code snippet using istanbul

yallist.js

Source:yallist.js

1'use strict'2module.exports = Yallist3Yallist.Node = Node4Yallist.create = Yallist5function Yallist (list) {6  var self = this7  if (!(self instanceof Yallist)) {8    self = new Yallist()9  }10  self.tail = null11  self.head = null12  self.length = 013  if (list && typeof list.forEach === 'function') {14    list.forEach(function (item) {15      self.push(item)16    })17  } else if (arguments.length > 0) {18    for (var i = 0, l = arguments.length; i < l; i++) {19      self.push(arguments[i])20    }21  }22  return self23}24Yallist.prototype.removeNode = function (node) {25  if (node.list !== this) {26    throw new Error('removing node which does not belong to this list')27  }28  var next = node.next29  var prev = node.prev30  if (next) {31    next.prev = prev32  }33  if (prev) {34    prev.next = next35  }36  if (node === this.head) {37    this.head = next38  }39  if (node === this.tail) {40    this.tail = prev41  }42  node.list.length--43  node.next = null44  node.prev = null45  node.list = null46  return next47}48Yallist.prototype.unshiftNode = function (node) {49  if (node === this.head) {50    return51  }52  if (node.list) {53    node.list.removeNode(node)54  }55  var head = this.head56  node.list = this57  node.next = head58  if (head) {59    head.prev = node60  }61  this.head = node62  if (!this.tail) {63    this.tail = node64  }65  this.length++66}67Yallist.prototype.pushNode = function (node) {68  if (node === this.tail) {69    return70  }71  if (node.list) {72    node.list.removeNode(node)73  }74  var tail = this.tail75  node.list = this76  node.prev = tail77  if (tail) {78    tail.next = node79  }80  this.tail = node81  if (!this.head) {82    this.head = node83  }84  this.length++85}86Yallist.prototype.push = function () {87  for (var i = 0, l = arguments.length; i < l; i++) {88    push(this, arguments[i])89  }90  return this.length91}92Yallist.prototype.unshift = function () {93  for (var i = 0, l = arguments.length; i < l; i++) {94    unshift(this, arguments[i])95  }96  return this.length97}98Yallist.prototype.pop = function () {99  if (!this.tail) {100    return undefined101  }102  var res = this.tail.value103  this.tail = this.tail.prev104  if (this.tail) {105    this.tail.next = null106  } else {107    this.head = null108  }109  this.length--110  return res111}112Yallist.prototype.shift = function () {113  if (!this.head) {114    return undefined115  }116  var res = this.head.value117  this.head = this.head.next118  if (this.head) {119    this.head.prev = null120  } else {121    this.tail = null122  }123  this.length--124  return res125}126Yallist.prototype.forEach = function (fn, thisp) {127  thisp = thisp || this128  for (var walker = this.head, i = 0; walker !== null; i++) {129    fn.call(thisp, walker.value, i, this)130    walker = walker.next131  }132}133Yallist.prototype.forEachReverse = function (fn, thisp) {134  thisp = thisp || this135  for (var walker = this.tail, i = this.length - 1; walker !== null; i--) {136    fn.call(thisp, walker.value, i, this)137    walker = walker.prev138  }139}140Yallist.prototype.get = function (n) {141  for (var i = 0, walker = this.head; walker !== null && i < n; i++) {142    // abort out of the list early if we hit a cycle143    walker = walker.next144  }145  if (i === n && walker !== null) {146    return walker.value147  }148}149Yallist.prototype.getReverse = function (n) {150  for (var i = 0, walker = this.tail; walker !== null && i < n; i++) {151    // abort out of the list early if we hit a cycle152    walker = walker.prev153  }154  if (i === n && walker !== null) {155    return walker.value156  }157}158Yallist.prototype.map = function (fn, thisp) {159  thisp = thisp || this160  var res = new Yallist()161  for (var walker = this.head; walker !== null;) {162    res.push(fn.call(thisp, walker.value, this))163    walker = walker.next164  }165  return res166}167Yallist.prototype.mapReverse = function (fn, thisp) {168  thisp = thisp || this169  var res = new Yallist()170  for (var walker = this.tail; walker !== null;) {171    res.push(fn.call(thisp, walker.value, this))172    walker = walker.prev173  }174  return res175}176Yallist.prototype.reduce = function (fn, initial) {177  var acc178  var walker = this.head179  if (arguments.length > 1) {180    acc = initial181  } else if (this.head) {182    walker = this.head.next183    acc = this.head.value184  } else {185    throw new TypeError('Reduce of empty list with no initial value')186  }187  for (var i = 0; walker !== null; i++) {188    acc = fn(acc, walker.value, i)189    walker = walker.next190  }191  return acc192}193Yallist.prototype.reduceReverse = function (fn, initial) {194  var acc195  var walker = this.tail196  if (arguments.length > 1) {197    acc = initial198  } else if (this.tail) {199    walker = this.tail.prev200    acc = this.tail.value201  } else {202    throw new TypeError('Reduce of empty list with no initial value')203  }204  for (var i = this.length - 1; walker !== null; i--) {205    acc = fn(acc, walker.value, i)206    walker = walker.prev207  }208  return acc209}210Yallist.prototype.toArray = function () {211  var arr = new Array(this.length)212  for (var i = 0, walker = this.head; walker !== null; i++) {213    arr[i] = walker.value214    walker = walker.next215  }216  return arr217}218Yallist.prototype.toArrayReverse = function () {219  var arr = new Array(this.length)220  for (var i = 0, walker = this.tail; walker !== null; i++) {221    arr[i] = walker.value222    walker = walker.prev223  }224  return arr225}226Yallist.prototype.slice = function (from, to) {227  to = to || this.length228  if (to < 0) {229    to += this.length230  }231  from = from || 0232  if (from < 0) {233    from += this.length234  }235  var ret = new Yallist()236  if (to < from || to < 0) {237    return ret238  }239  if (from < 0) {240    from = 0241  }242  if (to > this.length) {243    to = this.length244  }245  for (var i = 0, walker = this.head; walker !== null && i < from; i++) {246    walker = walker.next247  }248  for (; walker !== null && i < to; i++, walker = walker.next) {249    ret.push(walker.value)250  }251  return ret252}253Yallist.prototype.sliceReverse = function (from, to) {254  to = to || this.length255  if (to < 0) {256    to += this.length257  }258  from = from || 0259  if (from < 0) {260    from += this.length261  }262  var ret = new Yallist()263  if (to < from || to < 0) {264    return ret265  }266  if (from < 0) {267    from = 0268  }269  if (to > this.length) {270    to = this.length271  }272  for (var i = this.length, walker = this.tail; walker !== null && i > to; i--) {273    walker = walker.prev274  }275  for (; walker !== null && i > from; i--, walker = walker.prev) {276    ret.push(walker.value)277  }278  return ret279}280Yallist.prototype.splice = function (start, deleteCount, ...nodes) {281  if (start > this.length) {282    start = this.length - 1283  }284  if (start < 0) {285    start = this.length + start;286  }287  for (var i = 0, walker = this.head; walker !== null && i < start; i++) {288    walker = walker.next289  }290  var ret = []291  for (var i = 0; walker && i < deleteCount; i++) {292    ret.push(walker.value)293    walker = this.removeNode(walker)294  }295  if (walker === null) {296    walker = this.tail297  }298  if (walker !== this.head && walker !== this.tail) {299    walker = walker.prev300  }301  for (var i = 0; i < nodes.length; i++) {302    walker = insert(this, walker, nodes[i])303  }304  return ret;305}306Yallist.prototype.reverse = function () {307  var head = this.head308  var tail = this.tail309  for (var walker = head; walker !== null; walker = walker.prev) {310    var p = walker.prev311    walker.prev = walker.next312    walker.next = p313  }314  this.head = tail315  this.tail = head316  return this317}318function insert (self, node, value) {319  var inserted = node === self.head ?320    new Node(value, null, node, self) :321    new Node(value, node, node.next, self)322  if (inserted.next === null) {323    self.tail = inserted324  }325  if (inserted.prev === null) {326    self.head = inserted327  }328  self.length++329  return inserted330}331function push (self, item) {332  self.tail = new Node(item, self.tail, null, self)333  if (!self.head) {334    self.head = self.tail335  }336  self.length++337}338function unshift (self, item) {339  self.head = new Node(item, null, self.head, self)340  if (!self.tail) {341    self.tail = self.head342  }343  self.length++344}345function Node (value, prev, next, list) {346  if (!(this instanceof Node)) {347    return new Node(value, prev, next, list)348  }349  this.list = list350  this.value = value351  if (prev) {352    prev.next = this353    this.prev = prev354  } else {355    this.prev = null356  }357  if (next) {358    next.prev = this359    this.next = next360  } else {361    this.next = null362  }363}364try {365  // add if support for Symbol.iterator is present366  require('./iterator.js')(Yallist)...

traversal-skip.js

Source:traversal-skip.js

...16    return NodeFilter.FILTER_ACCEPT;17  }18}19debug("<br>Testing nextNode")20walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB1Filter, false);21shouldBe("walker.nextNode(); walker.currentNode.id", "'A1'");22shouldBe("walker.nextNode(); walker.currentNode.id", "'C1'");23shouldBe("walker.nextNode(); walker.currentNode.id", "'B2'");24shouldBe("walker.nextNode(); walker.currentNode.id", "'B3'");25debug("<br>Testing firstChild")26walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB1Filter, false);27shouldBe("walker.firstChild(); walker.currentNode.id", "'A1'");28shouldBe("walker.firstChild(); walker.currentNode.id", "'C1'");29debug("<br>Testing nextSibling")30walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB2Filter, false);31shouldBe("walker.firstChild(); walker.currentNode.id", "'A1'");32shouldBe("walker.firstChild(); walker.currentNode.id", "'B1'");33shouldBe("walker.nextSibling(); walker.currentNode.id", "'B3'");34debug("<br>Testing parentNode")35walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB1Filter, false);36walker.currentNode = testElement.querySelectorAll('#C1')[0];37shouldBe("walker.parentNode(); walker.currentNode.id", "'A1'");38debug("<br>Testing previousSibling")39walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB2Filter, false);40walker.currentNode = testElement.querySelectorAll('#B3')[0];41shouldBe("walker.previousSibling(); walker.currentNode.id", "'B1'");42debug("<br>Testing previousNode")43walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB1Filter, false);44walker.currentNode = testElement.querySelectorAll('#B3')[0];45shouldBe("walker.previousNode(); walker.currentNode.id", "'B2'");46shouldBe("walker.previousNode(); walker.currentNode.id", "'C1'");47shouldBe("walker.previousNode(); walker.currentNode.id", "'A1'");...

Using AI Code Generation

1var walk = require('walk');2var fs = require('fs');3var walker  = walk.walk('./', { followLinks: false });4walker.on('file', function(root, stat, next) {5    console.log(root + '/' + stat.name);6    next();7});8walker.on('end', function() {9    console.log(allFiles);10});

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4reporter.add('text');5var walker = istanbul.utils.walker('lib');6walker.files.forEach(function (f) {7    console.log(f);8    collector.add(istanbul.utils.produceCoverage(require(f), f));9});10reporter.write(collector, true, function () {11    console.log('All reports generated');12});13var instrumenter = new istanbul.Instrumenter();14instrumenter.instrument('lib/sum.js', function (err, instrumented) {15    console.log(instrumented);16});

Using AI Code Generation

1var istanbul = require('istanbul');2var instrumenter = new istanbul.Instrumenter();3var fs = require('fs');4var code = fs.readFileSync('app.js', 'utf8');5var instrumentedCode = instrumenter.instrumentSync(code, 'app.js');6fs.writeFileSync('instrumented.js', instrumentedCode);7var assert = require('assert');8var app = require('./instrumented.js');9describe('Test for the add function', function () {10  it('should return 5', function () {11    assert.equal(5, app.add(2, 3));12  });13});14describe('Test for the multiply function', function () {15  it('should return 6', function () {16    assert.equal(6, app.multiply(2, 3));17  });18});19describe('Test for the divide function', function () {20  it('should return 2', function () {21    assert.equal(2, app.divide(6, 3));22  });23});

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4var walk = istanbul.utils.walk;5walk('lib', sync, function (file, stat) {6    if (stat.isFile() && /\.(js)$/.test(file)) {7        return file;8    }9}, function (err, files) {10    if (err) {11        console.error(err);12        process.exit(1);13    }14    files.forEach(function (f) {15        console.log('Processing ' + f);16        collector.add(istanbul.utils.produceCoverage(require('./' + f)));17    });18    reporter.add('text');19    reporter.write(collector, true, function () {20        console.log('All done!');21    });22});

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4collector.add(JSON.parse(process.env.coverage || '{}'));5var instrumenter = new istanbul.Instrumenter();6var fs = require('fs');7var path = require('path');8var source = fs.readFileSync(path.join(__dirname, '../lib/parse.js'), 'utf8');9var instrumentedSource = instrumenter.instrumentSync(source, path.join(__dirname, '../lib/parse.js'));10fs.writeFileSync(path.join(__dirname, '../lib/parse.js'), instrumentedSource);11var parse = require('../lib/parse');12var assert = require('assert');13var coverage = instrumenter.lastFileCoverage();14collector.add(coverage);15process.send(JSON.stringify(collector.getFinalCoverage()));16reporter.addAll(['text-summary', 'lcov']);17reporter.write(collector, sync, function () {18  console.log('All reports generated');19});20var istanbul = require('istanbul');21var collector = new istanbul.Collector();22var reporter = new istanbul.Reporter();23collector.add(JSON.parse(process.env.coverage || '{}'));24var instrumenter = new istanbul.Instrumenter();25var fs = require('fs');26var path = require('path');27var source = fs.readFileSync(path.join(__dirname, '../lib/parse.js'), 'utf8');28var instrumentedSource = instrumenter.instrumentSync(source, path.join(__dirname, '../lib/parse.js'));29fs.writeFileSync(path.join(__dirname, '../lib/parse.js'), instrumentedSource);30var parse = require('../lib/parse');31var assert = require('assert');32var coverage = instrumenter.lastFileCoverage();33collector.add(coverage);34process.send(JSON.stringify(collector.getFinalCoverage()));35reporter.addAll(['text-summary', 'lcov']);

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4var sync = false;5var walk = require('walk');6var files = [];7var walker  = walk.walk('./', { followLinks: false });8walker.on('file', function(root, stat, next) {9    if (stat.name.match(/\.js$/)) {10        files.push(root + '/' + stat.name);11    }12    next();13});14walker.on('end', function() {15    var instrumenter = new istanbul.Instrumenter();16    var instrumented = files.map(function(file) {17        return instrumenter.instrumentSync(require('fs').readFileSync(file, 'utf8'), file);18    });19    instrumented.forEach(function(code, index) {20        require('vm').runInThisContext(code, files[index]);21    });22    require('./test1.js');23    collector.add(global.__coverage__);24    reporter.add('text');25    reporter.add('html');26    reporter.write(collector, sync, function() {27        console.log('All reports generated');28    });29});

Using AI Code Generation

1var istanbul = require('istanbul');2var walker = istanbul.utils.walk;3walker('test', function (err, files) {4  if (err) {5    throw err;6  }7  console.log(files);8});9var istanbul = require('istanbul');10var collector = new istanbul.Collector();11var reporter = new istanbul.Reporter();12reporter.add('lcov');13reporter.write(collector, sync, function () {14  console.log('All reports generated');15});

Using AI Code Generation

1var fs = require('fs');2var istanbul = require('istanbul');3var walker = istanbul.utils.walker;4var collector = new istanbul.Collector();5var reporter = new istanbul.Reporter();6var sync = false;7var excludes = [];8var includes = [];9var verbose = false;10var reportType = 'lcovonly';11var outputFile = 'coverage.lcov';12var dir = './';13var files = [];14var instrumenter = new istanbul.Instrumenter();15var instrumentedFiles = {};16var instrumentedFileIds = {};17var instrumentedFileId = 0;18var instrumentedCode = '';19var instrumentedLineCount = 0;20var instrumentedLineMap = {};21var instrumentedLineMapReverse = {};22var instrumentedLineCount = 0;23var instrumentedLine = 0;24var instrumentedFile = '';25var instrumentedFileId = 0;26var instrumentedFileLineCount = 0;27var instrumentedFileLine = 0;28var instrumentedFileLineId = 0;29var instrumentedFileLineIdMap = {};30var instrumentedFileLineIdMapReverse = {};31var instrumentedFileLineIdCount = 0;32var instrumentedFileLineIdCountMap = {};33var instrumentedFileLineIdCountMapReverse = {};34var instrumentedFileLineIdCountMapMax = 0;35var instrumentedFileLineIdCountMapMaxLine = 0;36var instrumentedFileLineIdCountMapMaxLineId = 0;37var instrumentedFileLineIdCountMapMaxLineIdCount = 0;38var instrumentedFileLineIdCountMapMaxLineIdCountFile = '';39var instrumentedFileLineIdCountMapMaxLineIdCountFileId = 0;40var instrumentedFileLineIdCountMapMaxLineIdCountFileIdLine = 0;41var instrumentedFileLineIdCountMapMaxLineIdCountFileIdLineId = 0;42var instrumentedFileLineIdCountMapMaxLineIdCountFileIdLineIdCount = 0;43var instrumentedFileLineIdCountMapMaxLineIdCountFileIdLineIdCountLine = 0;44var instrumentedFileLineIdCountMapMaxLineIdCountFileIdLineIdCountLineId = 0;

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