add jscs

.jscsrc

@@ -0,0 +1,60 @@
+{
+  "excludeFiles": ["lib/6to5/transformation/templates"],
+  "disallowSpacesInNamedFunctionExpression": {
+    "beforeOpeningRoundBrace": true
+  },
+  "requireSpacesInAnonymousFunctionExpression": {
+    "beforeOpeningRoundBrace": true
+  },
+  "requireSpacesInAnonymousFunctionExpression": {
+    "beforeOpeningRoundBrace": true
+  },
+  "disallowSpacesInFunctionDeclaration": {
+    "beforeOpeningRoundBrace": true
+  },
+  "disallowSpacesInsideArrayBrackets": true,
+  "disallowSpacesInsideParentheses": true,
+  "disallowQuotedKeysInObjects": true,
+  "disallowSpaceAfterObjectKeys": true,
+  "disallowSpaceAfterPrefixUnaryOperators": true,
+  "disallowSpaceBeforePostfixUnaryOperators": true,
+  "disallowSpaceBeforeBinaryOperators": [
+    ","
+  ],
+  "disallowMixedSpacesAndTabs": true,
+  "disallowTrailingWhitespace": true,
+  "disallowYodaConditions": true,
+  "disallowKeywords": [ "with" ],
+  "disallowMultipleLineBreaks": true,
+  "requireSpaceBeforeBlockStatements": true,
+  "requireParenthesesAroundIIFE": true,
+  "requireSpacesInConditionalExpression": true,
+  "requireBlocksOnNewline": 1,
+  "requireCommaBeforeLineBreak": true,
+  "requireSpaceBeforeBinaryOperators": true,
+  "requireSpaceAfterBinaryOperators": true,
+  "requireCamelCaseOrUpperCaseIdentifiers": true,
+  "requireLineFeedAtFileEnd": true,
+  "requireCapitalizedConstructors": true,
+  "requireDotNotation": true,
+  "requireSpacesInForStatement": true,
+  "requireCurlyBraces": [
+    "do"
+  ],
+  "requireSpaceAfterKeywords": [
+    "if",
+    "else",
+    "for",
+    "while",
+    "do",
+    "switch",
+    "case",
+    "return",
+    "try",
+    "catch",
+    "typeof"
+  ],
+  "validateLineBreaks": "LF",
+  "validateQuoteMarks": "\"",
+  "validateIndentation": 2
+}

.jshintignore

@@ -1,3 +1 @@
-node_modules
-test
 lib/6to5/transformation/templates

Makefile

@@ -4,6 +4,7 @@ UGLIFY_CMD = node_modules/uglify-js/bin/uglifyjs
 #UGLIFY_CMD = node_modules/uglify-js/bin/uglifyjs --mangle sort
 JSHINT_CMD = node_modules/jshint/bin/jshint
 MOCHA_CMD = node_modules/mocha/bin/_mocha
+JSCS_CMD = node_modules/jscs/bin/jscs
 
 export NODE_ENV = test
 
@@ -27,6 +28,7 @@ clean:
 
 lint:
 	$(JSHINT_CMD) --reporter node_modules/jshint-stylish/stylish.js lib bin
+	$(JSCS_CMD) lib bin
 
 test-clean:
 	rm -rf test/tmp

bin/6to5/file.js

@@ -77,7 +77,7 @@ module.exports = function (commander, filenames) {
       if (chunk !== null) code += chunk;
     });
 
-    process.stdin.on("end", function() {
+    process.stdin.on("end", function () {
       results.push(util.transform(commander.filename, code));
       output();
     });
@@ -117,7 +117,7 @@ module.exports = function (commander, filenames) {
         persistent: true,
         ignoreInitial: true
       }).on("all", function (type, filename) {
-        if (type === "add" || type === "change" || type === "unlink" ) {
+        if (type === "add" || type === "change" || type === "unlink") {
           console.log(type, filename);
           walk();
         }

bin/6to5/index.js

@@ -28,7 +28,7 @@ commander.option("-R, --react-compat", "Makes the react transformer produce pre-
 commander.option("-E, --include-regenerator", "Include the regenerator runtime if necessary", false);
 commander.option("--keep-module-id-extensions", "Keep extensions when generating module ids", false);
 
-commander.on("--help", function(){
+commander.on("--help", function () {
   var outKeys = function (title, obj) {
     console.log("  " + title + ":");
     console.log();

lib/6to5/generation/buffer.js

@@ -102,13 +102,13 @@ Buffer.prototype._newline = function (removeLast) {
  * If buffer ends with a newline and some spaces after it, trim those spaces.
  */
 Buffer.prototype._removeSpacesAfterLastNewline = function () {
-  var lastNewlineIndex = this.buf.lastIndexOf('\n');
+  var lastNewlineIndex = this.buf.lastIndexOf("\n");
   if (lastNewlineIndex === -1)
     return;
 
   var index = this.buf.length - 1;
   while (index > lastNewlineIndex) {
-    if (this.buf[index] !== ' ') {
+    if (this.buf[index] !== " ") {
       break;
     }
 

lib/6to5/generation/generator.js

@@ -40,7 +40,7 @@ _.each(Buffer.prototype, function (fn, key) {
 CodeGenerator.normaliseOptions = function (code, opts) {
   var indent = detectIndent(code);
   var style  = indent.indent;
-  if (!style || style === " ") style = "  "; 
+  if (!style || style === " ") style = "  ";
 
   return _.merge({
     parentheses: true,

lib/6to5/generation/whitespace.js

@@ -101,7 +101,7 @@ Whitespace.prototype.getNewlinesBetween = function (startToken, endToken) {
   var lines = 0;
 
   for (var line = start; line < end; line++) {
-    if (typeof this.used[line] === 'undefined') {
+    if (typeof this.used[line] === "undefined") {
       this.used[line] = true;
       lines++;
     }

lib/6to5/transformation/helpers/replace-supers.js

@@ -8,22 +8,17 @@ var t        = require("../../types");
 /**
  * Description
  *
- * @param {Object} methodNode
- * @param {Object} className
- * @param {Object} superName
- * @param {Boolean} isLoose
- * @param {Scope} scope
- * @param {File} file
+ * @param {Object} opts
  */
 
-function ReplaceSupers(methodNode, className, superName, isLoose, scope, file) {
+function ReplaceSupers(opts) {
   this.topLevelThisReference = null;
-  this.methodNode            = methodNode;
-  this.className             = className;
-  this.superName             = superName;
-  this.isLoose               = isLoose;
-  this.scope                 = scope;
-  this.file                  = file;
+  this.methodNode            = opts.methodNode;
+  this.className             = opts.className;
+  this.superName             = opts.superName;
+  this.isLoose               = opts.isLoose;
+  this.scope                 = opts.scope;
+  this.file                  = opts.file;
 }
 
 /**

lib/6to5/transformation/templates/async-to-generator.js

@@ -2,7 +2,7 @@
   return function () {
     var gen = fn.apply(this, arguments);
 
-    return new Promise(function(resolve, reject) {
+    return new Promise(function (resolve, reject) {
       var callNext = step.bind(gen.next);
       var callThrow = step.bind(gen.throw);
 

lib/6to5/transformation/templates/tagged-template-literal.js

@@ -3,4 +3,3 @@
       raw: { value: Object.freeze(raw) }
   }));
 });
-

lib/6to5/transformation/transformers/es6/block-scoping.js

@@ -246,10 +246,10 @@ var letReferenceFunctionVisitor = {
 
 var letReferenceBlockVisitor = {
   enter: function (node, parent, scope, context, state) {
-      if (t.isFunction(node)) {
-        traverse(node, letReferenceFunctionVisitor, scope, state);
-        return context.skip();
-      }
+    if (t.isFunction(node)) {
+      traverse(node, letReferenceFunctionVisitor, scope, state);
+      return context.skip();
+    }
   }
 };
 

lib/6to5/transformation/transformers/es6/classes.js

@@ -137,7 +137,14 @@ Class.prototype.buildBody = function () {
   for (var i = 0; i < classBody.length; i++) {
     var node = classBody[i];
     if (t.isMethodDefinition(node)) {
-      var replaceSupers = new ReplaceSupers(node, this.className, this.superName, this.isLoose, this.scope, this.file);
+      var replaceSupers = new ReplaceSupers({
+        methodNode: node,
+        className:  this.className,
+        superName:  this.superName,
+        isLoose:    this.isLoose,
+        scope:      this.scope,
+        file:       this.file
+      });
       replaceSupers.replace();
 
       if (node.key.name === "constructor") {

lib/6to5/transformation/transformers/es6/constants.js

@@ -2,7 +2,6 @@
 
 var traverse = require("../../../traverse");
 var t        = require("../../../types");
-var _        = require("lodash");
 
 var visitor = {
   enter: function (node, parent, scope, context, state) {

lib/6to5/transformation/transformers/es6/destructuring.js

@@ -65,24 +65,24 @@ var pushObjectPattern = function (opts, nodes, pattern, parentId) {
   for (var i = 0; i < pattern.properties.length; i++) {
     var prop = pattern.properties[i];
     if (t.isSpreadProperty(prop)) {
-        // get all the keys that appear in this object before the current spread
-        var keys = [];
-        for (var i2 = 0; i2 < pattern.properties.length; i2++) {
-          var prop2 = pattern.properties[i2];
+      // get all the keys that appear in this object before the current spread
+      var keys = [];
+      for (var i2 = 0; i2 < pattern.properties.length; i2++) {
+        var prop2 = pattern.properties[i2];
 
-          if (i2 >= i) break;
-          if (t.isSpreadProperty(prop2)) continue;
+        if (i2 >= i) break;
+        if (t.isSpreadProperty(prop2)) continue;
 
-          var key = prop2.key;
-          if (t.isIdentifier(key)) {
-            key = t.literal(prop2.key.name);
-          }
-          keys.push(key);
+        var key = prop2.key;
+        if (t.isIdentifier(key)) {
+          key = t.literal(prop2.key.name);
         }
-        keys = t.arrayExpression(keys);
+        keys.push(key);
+      }
+      keys = t.arrayExpression(keys);
 
-        var value = t.callExpression(opts.file.addHelper("object-without-properties"), [parentId, keys]);
-        nodes.push(buildVariableAssign(opts, prop.argument, value));
+      var value = t.callExpression(opts.file.addHelper("object-without-properties"), [parentId, keys]);
+      nodes.push(buildVariableAssign(opts, prop.argument, value));
     } else {
       if (t.isLiteral(prop.key)) prop.computed = true;
 

lib/6to5/transformation/transformers/es6/for-of.js

@@ -19,7 +19,7 @@ exports.ForOfStatement = function (node, parent, scope, context, file) {
   t.ensureBlock(node);
 
   // add the value declaration to the new loop body
-  if (declar){
+  if (declar) {
     if (build.shouldUnshift) {
       block.body.unshift(declar);
     } else {

lib/6to5/transformation/transformers/es6/spread.js

@@ -66,7 +66,7 @@ exports.CallExpression = function (node, parent, scope, context, file) {
   node.arguments = [];
 
   var nodes;
-  if (args.length === 1 && args[0].argument.name === 'arguments') {
+  if (args.length === 1 && args[0].argument.name === "arguments") {
     nodes = [args[0].argument];
   } else {
     nodes = build(args, file);

lib/6to5/transformation/transformers/other/react.js

@@ -39,7 +39,7 @@ exports.XJSAttribute = {
   }
 };
 
-var isCompatTag = function(tagName) {
+var isCompatTag = function (tagName) {
   return /^[a-z]|\-/.test(tagName);
 };
 

lib/6to5/types/index.js

@@ -77,16 +77,18 @@ t.is = function (type, node, opts, skipAliasCheck) {
   if (!typeMatches && !skipAliasCheck) {
     var aliases = t.FLIPPED_ALIAS_KEYS[type];
 
-    if (typeof aliases !== 'undefined')
+    if (typeof aliases !== "undefined") {
       typeMatches = aliases.indexOf(node.type) > -1;
+    }
   }
 
   if (!typeMatches) {
     return false;
   }
 
-  if (typeof opts !== 'undefined')
+  if (typeof opts !== "undefined") {
     return t.shallowEqual(node, opts);
+  }
 
   return true;
 };
@@ -316,7 +318,7 @@ t.toIdentifier = function (name) {
     name = "_" + name;
   }
 
-  return name || '_';
+  return name || "_";
 };
 
 /**

package.json

@@ -56,6 +56,7 @@
     "browserify": "8.1.1",
     "chai": "1.10.0",
     "istanbul": "0.3.5",
+    "jscs": "^1.10.0",
     "jshint-stylish": "1.0.0",
     "matcha": "0.6.0",
     "mocha": "2.1.0",