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| author | Fariborz Jahanian <fjahanian@apple.com> | 2011-07-06 22:56:44 +0000 |
|---|---|---|
| committer | Fariborz Jahanian <fjahanian@apple.com> | 2011-07-06 22:56:44 +0000 |
| commit | a236c0e47aec75b5f838552c4f04b0c249f5ff61 (patch) | |
| tree | 223e72b7a8b8b3f31afbe1c64e41f3514a86a9c9 | |
| parent | acd4aaf69e6c29815b10c6b5e5483df38b3c5275 (diff) | |
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
| -rw-r--r-- | docs/AutomaticReferenceCounting.html | 5 |
1 files changed, 4 insertions, 1 deletions
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, |