From 56ac964e54aca82f10879db0332012bb729f5df3 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Fri, 7 Nov 2014 13:51:31 +1100
Subject: [PATCH] remove newline assurance and add optional Error constructor
 to File::errorWithNode

---
 lib/6to5/file.js | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/lib/6to5/file.js b/lib/6to5/file.js
index 0da0505506..7aae813d31 100644
--- a/lib/6to5/file.js
+++ b/lib/6to5/file.js
@@ -81,16 +81,11 @@ File.prototype.addDeclaration = function (name) {
   return uid;
 };
 
-File.prototype.errorWithNode = function (node, msg) {
-  var loc;
+File.prototype.errorWithNode = function (node, msg, Error) {
+  Error = Error || SyntaxError;
 
-  if (node.loc) {
-    loc = node.loc.start;
-  } else {
-    loc = acorn.getLineInfo(this.code, node.start);
-  }
-
-  var err = new SyntaxError("Line " + loc.line + ": " + msg);
+  var loc = node.loc.start;
+  var err = new Error("Line " + loc.line + ": " + msg);
   err.loc = loc;
   return err;
 };
@@ -98,9 +93,8 @@ File.prototype.errorWithNode = function (node, msg) {
 File.prototype.parse = function (code) {
   var self = this;
 
-  code = code.trimRight() + "\n";
-
   this.code = code;
+
   code = this.parseShebang(code);
 
   return util.parse(this.opts, code, function (tree) {