copy over descriptors and handle non-enumerable properties in defaults helper - fixes #738

2015-02-10 13:06:26 +11:00
parent b6d708caf2
commit 94a0eb5b06
7 changed files with 9 additions and 8 deletions
--- a/lib/6to5/transformation/templates/defaults.js
+++ b/lib/6to5/transformation/templates/defaults.js
@@ -1,7 +1,8 @@
 (function (obj, defaults) {
-  for (var key in defaults) {
+  var keys = Object.getOwnPropertyNames(defaults);
+  for (var key in keys) {
    if (obj[key] === undefined) {
-      obj[key] = defaults[key];
+      Object.defineProperty(obj, key, Object.getOwnPropertyDescriptor(defaults, key));
    }
  }
  return obj;