v2.4.5

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 Gaps between patch versions are faulty/broken releases.
 
+## 2.4.5
+
+ * Avoid printing comments if they've already been output.
+
 ## 2.4.4
 
  * Add `module` type to browser build `<script>` handler.

lib/6to5/generation/generator.js

@@ -274,14 +274,21 @@ CodeGenerator.prototype._printComments = function (comments) {
   var self = this;
 
   _.each(comments, function (comment) {
+    var skip = false;
+
     // find the original comment in the ast and set it as displayed
     _.each(self.ast.comments, function (origComment) {
       if (origComment.start === comment.start) {
+        // comment has already been output
+        if (origComment._displayed) skip = true;
+
         origComment._displayed = true;
         return false;
       }
     });
 
+    if (skip) return;
+
     // whitespace before
     self.newline(self.whitespace.getNewlinesBefore(comment));
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "6to5",
   "description": "Turn ES6 code into readable vanilla ES5 with source maps",
-  "version": "2.4.4",
+  "version": "2.4.5",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://github.com/6to5/6to5",
   "repository": {