From: Fariborz Jahanian <fjahanian@apple.com>
Date: Wed, 6 Jul 2011 22:56:44 +0000 (+0000)
Subject: Update document for objc_arc_weak_unavailable attribute
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a236c0e47aec75b5f838552c4f04b0c249f5ff61;p=clang

Update document for objc_arc_weak_unavailable attribute
on class declarations. Documentation for // rdar://9693477


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134558 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/docs/AutomaticReferenceCounting.html b/docs/AutomaticReferenceCounting.html
index 280462481c..11bd020b75 100644
--- a/docs/AutomaticReferenceCounting.html
+++ b/docs/AutomaticReferenceCounting.html
@@ -728,7 +728,10 @@ new pointee, unless that object is currently undergoing deallocation,
 in which case it the lvalue is updated to a null pointer.  This must
 execute atomically with respect to other assignments to the object, to
 reads from the object, and to the final release of the new pointed-to
-value.</li>
+value. If class is not compatible with weak references, 
+<tt>objc_arc_weak_unavailable</tt>
+attribute must be specified on class declaration to disallow weak 
+references to their objects.</li>
 <li>For <tt>__unsafe_unretained</tt> objects, the new pointee is
 stored into the lvalue using primitive semantics.</li>
 <li>For <tt>__autoreleasing</tt> objects, the new pointee is retained,