fix let scoping unneccesary override - fixes #245

2014-12-05 09:55:26 +11:00
parent b9266b0c4c
commit a0219ef278
3 changed files with 6 additions and 2 deletions
--- a/lib/6to5/traverse/scope.js
+++ b/lib/6to5/traverse/scope.js
@@ -23,7 +23,7 @@ function Scope(block, parent) {

 Scope.add = function (node, references) {
  if (!node) return;
-  _.merge(references, t.getIds(node, true));
+  _.defaults(references, t.getIds(node, true));
 };

 Scope.prototype.getReferences = function () {
--- a/lib/6to5/types/index.js
+++ b/lib/6to5/types/index.js
@@ -162,7 +162,7 @@ t.toIdentifier = function (name) {
    return c ? c.toUpperCase() : "";
  });

-  return name;
+  return name || '_';
 };

 t.isValidIdentifier = function (name) {