From 0859d0a12293c83df5b61f170cd0011372d21d5e Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Mon, 13 Oct 2014 14:55:36 +1100
Subject: [PATCH] fix uncovered branch in destructuring

---
 lib/6to5/transformers/destructuring.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/6to5/transformers/destructuring.js b/lib/6to5/transformers/destructuring.js
index e434bddbd6..bdc130a0a8 100644
--- a/lib/6to5/transformers/destructuring.js
+++ b/lib/6to5/transformers/destructuring.js
@@ -85,7 +85,6 @@ exports.ForOfStatement = function (node, parent, file) {
 };
 
 exports.Function = function (node, parent, file) {
-  var block = node.body;
   var nodes = [];
 
   var hasDestructuring = false;
@@ -100,8 +99,11 @@ exports.Function = function (node, parent, file) {
   });
 
   if (!hasDestructuring) return;
+
   util.ensureBlock(node);
-  block.body = nodes.concat(block.body || []);
+
+  var block = node.body;
+  block.body = nodes.concat(block.body);
 };
 
 exports.ExpressionStatement = function (node, parent, file) {