From 19daae6d96d8a74c9eb7c920f7bf360fb3f12760 Mon Sep 17 00:00:00 2001
From: Amjad Masad <amjad.masad@gmail.com>
Date: Mon, 7 Dec 2015 02:48:11 -0800
Subject: [PATCH] Don't print on throw statements with sequence exprs

---
 packages/babel-generator/src/node/parentheses.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/babel-generator/src/node/parentheses.js b/packages/babel-generator/src/node/parentheses.js
index 4f488956e7..4df8a56bf5 100644
--- a/packages/babel-generator/src/node/parentheses.js
+++ b/packages/babel-generator/src/node/parentheses.js
@@ -124,6 +124,10 @@ export function SequenceExpression(node: Object, parent: Object): boolean {
     return false;
   }
 
+  if (t.isThrowStatement(parent)) {
+    return false;
+  }
+
   // Otherwise err on the side of overparenthesization, adding
   // explicit exceptions above if this proves overzealous.
   return true;