From 33617a05882f14c34a60a599813178ed42376fdf Mon Sep 17 00:00:00 2001
From: Blake Kaplan <mrbkap@gmail.com>
Date: Mon, 14 Feb 2011 18:34:10 -0800
Subject: [PATCH] Bug 634055 - Check argc here. r=gal

--HG--
extra : rebase_source : 7214f894c6dfa4dd4a631ca700ab661df4dc6b1d
---
 js/src/jstypedarray.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/src/jstypedarray.cpp b/js/src/jstypedarray.cpp
index 8d195f3bde23..c0a91031cedd 100644
--- a/js/src/jstypedarray.cpp
+++ b/js/src/jstypedarray.cpp
@@ -936,7 +936,7 @@ class TypedArrayTemplate
         }
 
         // first arg must be either a typed array or a JS array
-        if (!argv[0].isObject()) {
+        if (argc == 0 || !argv[0].isObject()) {
             JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
                                  JSMSG_TYPED_ARRAY_BAD_ARGS);
             return false;