From 6e8ab16b25e96486b9f41f9e7965ae1927ee1807 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Fri, 8 May 2015 00:22:23 +0100
Subject: [PATCH] run es6.spec.blockScoping transformer on exit rather than
 enter

---
 .../transformers/es6/spec.block-scoping.js     | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/babel/transformation/transformers/es6/spec.block-scoping.js b/src/babel/transformation/transformers/es6/spec.block-scoping.js
index 43699b2b1b..0ca41863a9 100644
--- a/src/babel/transformation/transformers/es6/spec.block-scoping.js
+++ b/src/babel/transformation/transformers/es6/spec.block-scoping.js
@@ -31,14 +31,16 @@ export var metadata = {
   optional: true
 };
 
-export function BlockStatement(node, parent, scope, file) {
-  var letRefs = node._letReferences;
-  if (!letRefs) return;
+export var BlockStatement = {
+  exit(node, parent, scope, file) {
+    var letRefs = node._letReferences;
+    if (!letRefs) return;
 
-  this.traverse(visitor, {
-    letRefs: letRefs,
-    file:    file
-  });
-}
+    this.traverse(visitor, {
+      letRefs: letRefs,
+      file:    file
+    });
+  }
+};
 
 export { BlockStatement as Program, BlockStatement as Loop };