add whitespace option and move util.errorWithNode to File

lib/6to5/file.js

@@ -4,6 +4,7 @@ var SHEBANG_REGEX = /^\#\!.*/;
 
 var transform = require("./transform");
 var generate  = require("./generator");
+var acorn     = require("acorn-6to5");
 var util      = require("./util");
 var b         = require("./builders");
 var _         = require("lodash");
@@ -21,11 +22,12 @@ File.normaliseOptions = function (opts) {
   opts = opts || {};
 
   _.defaults(opts, {
-    blacklist: [],
+    whitespace: true,
-    whitelist: [],
+    blacklist:  [],
-    sourceMap: false,
+    whitelist:  [],
-    filename:  "unknown",
+    sourceMap:  false,
-    modules:   "common"
+    filename:   "unknown",
+    modules:    "common"
   });
 
   _.defaults(opts, {
@@ -78,10 +80,25 @@ File.prototype.addDeclaration = function (name) {
   return uid;
 };
 
+File.prototype.errorWithNode = function (node, msg) {
+  var loc
+
+  if (node.loc) {
+    loc = node.loc.start;
+  } else {
+    loc = acorn.getLineInfo(this.code, node.start);
+  }
+
+  var err = new SyntaxError("Line " + loc.line + ": " + msg);
+  err.lineNumber = loc.line;
+  err.column = loc.column;
+  return err;
+};
+
 File.prototype.parse = function (code) {
   var self = this;
-  this.code = code;
 
+  this.code = code;
   code = this.parseShebang(code);
 
   return util.parse(this.opts, code, function (tree) {

lib/6to5/util.js

@@ -73,16 +73,6 @@ exports.getIds = function (node) {
   return ids;
 };
 
-exports.errorWithNode = function (node, msg) {
-  var line = node.loc.start.line;
-  var col  = node.loc.start.column;
-
-  var err = new SyntaxError("Line " + line + ": " + msg);
-  err.lineNumber = line;
-  err.column = col;
-  return err;
-};
-
 exports.canCompile = function (filename) {
   var ext = path.extname(filename);
   return _.contains([".js", ".es6"], ext);
@@ -202,20 +192,14 @@ exports.repeat = function (width, cha) {
 
 exports.parse = function (opts, code, callback) {
   try {
-    var recastOpts = {};
-
-    if (opts.sourceMap) {
-      recastOpts.sourceFileName = opts.sourceFileName;
-      recastOpts.sourceRoot     = opts.sourceRoot;
-    }
-
     var comments = [];
     var tokens   = [];
 
     var ast = acorn.parse(code, {
       ecmaVersion: Infinity,
+      strictMode:  true,
       onComment:   comments,
-      locations:   true,
+      locations:   opts.sourceMap,
       onToken:     tokens,
       ranges:      true
     });