From 4c2b85deecedd5324519d26b20dbdb66feb7cd5f Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Mon, 5 Jan 2015 01:06:41 +1100
Subject: [PATCH] better NewExpression paren insertion

---
 lib/6to5/generation/node/index.js       | 5 ++++-
 lib/6to5/generation/node/parentheses.js | 5 +++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/6to5/generation/node/index.js b/lib/6to5/generation/node/index.js
index b0b283d853..8828ba9030 100644
--- a/lib/6to5/generation/node/index.js
+++ b/lib/6to5/generation/node/index.js
@@ -61,9 +61,12 @@ Node.prototype.needsParens = function () {
   if (!parent) return false;
 
   if (t.isNewExpression(parent) && parent.callee === node) {
-    return t.isCallExpression(node) || _.some(node, function (val) {
+    if (t.isCallExpression(node)) return true;
+
+    var hasCall = _.some(node, function (val) {
       return t.isCallExpression(val);
     });
+    if (hasCall) return true;
   }
 
   return find(parens, node, parent);
diff --git a/lib/6to5/generation/node/parentheses.js b/lib/6to5/generation/node/parentheses.js
index 6d96d78675..8415b0c9a5 100644
--- a/lib/6to5/generation/node/parentheses.js
+++ b/lib/6to5/generation/node/parentheses.js
@@ -13,7 +13,8 @@ _.each([
   ["<", ">", "<=", ">=", "in", "instanceof"],
   [">>", "<<", ">>>"],
   ["+", "-"],
-  ["*", "/", "%"]
+  ["*", "/", "%"],
+  ["**"]
 ], function (tier, i) {
   _.each(tier, function (op) {
     PRECEDENCE[op] = i;
@@ -35,7 +36,7 @@ exports.ObjectExpression = function (node, parent) {
 };
 
 exports.Binary = function (node, parent) {
-  if (t.isCallExpression(parent) && parent.callee === node) {
+  if ((t.isCallExpression(parent) || t.isNewExpression(parent)) && parent.callee === node) {
     return true;
   }