From 932310909a276a43d8b925e07c97d723c2f340f6 Mon Sep 17 00:00:00 2001
From: "sicking%bigfoot.com" <sicking%bigfoot.com>
Date: Wed, 2 Nov 2005 16:05:15 +0000
Subject: [PATCH] Bug 225507: Implement nsCOMArray::SafeObjectAt for
 out-of-bounds safe access.

r=bryner sr=alecf
---
 xpcom/glue/nsCOMArray.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/xpcom/glue/nsCOMArray.h b/xpcom/glue/nsCOMArray.h
index d34a48727a17..98c2a08288e2 100644
--- a/xpcom/glue/nsCOMArray.h
+++ b/xpcom/glue/nsCOMArray.h
@@ -100,6 +100,10 @@ public:
         return NS_STATIC_CAST(nsISupports*, mArray.ElementAt(aIndex));
     }
     
+    nsISupports* SafeObjectAt(PRInt32 aIndex) const {
+        return NS_STATIC_CAST(nsISupports*, mArray.SafeElementAt(aIndex));
+    }
+
     nsISupports* operator[](PRInt32 aIndex) const {
         return ObjectAt(aIndex);
     }
@@ -149,6 +153,11 @@ class nsCOMArray : public nsCOMArray_base
         return NS_STATIC_CAST(T*,nsCOMArray_base::ObjectAt(aIndex));
     }
 
+    // these do NOT refcount on the way out, for speed
+    T* SafeObjectAt(PRInt32 aIndex) const {
+        return NS_STATIC_CAST(T*,nsCOMArray_base::SafeObjectAt(aIndex));
+    }
+
     // indexing operator for syntactic sugar
     T* operator[](PRInt32 aIndex) const {
         return ObjectAt(aIndex);