From 3e59abea5d39e0ea163b73babc2ae98bec46ebbb Mon Sep 17 00:00:00 2001
From: Brian Hackett <bhackett1024@gmail.com>
Date: Mon, 8 Jul 2013 07:08:15 -0600
Subject: [PATCH] Bug 887549 - Don't handle destructuring shorthand in syntax
 parser, r=jandem.

---
 js/src/frontend/Parser.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/js/src/frontend/Parser.cpp b/js/src/frontend/Parser.cpp
index 645f8976cab..fdb359b5f2f 100644
--- a/js/src/frontend/Parser.cpp
+++ b/js/src/frontend/Parser.cpp
@@ -6624,6 +6624,8 @@ Parser<ParseHandler>::primaryExpr(TokenKind tt)
                  * Support, e.g., |var {x, y} = o| as destructuring shorthand
                  * for |var {x: x, y: y} = o|, per proposed JS2/ES4 for JS1.8.
                  */
+                if (!abortIfSyntaxParser())
+                    return null();
                 tokenStream.ungetToken();
                 if (!tokenStream.checkForKeyword(atom->charsZ(), atom->length(), NULL, NULL))
                     return null();