From: Fariborz Jahanian <fjahanian@apple.com>
Date: Thu, 2 Feb 2012 19:34:05 +0000 (+0000)
Subject: objc: comment the code which allows narroing of property object
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ff2a0ecae1d7692dbb63aa540dba41a8c21d7ee4;p=clang

objc: comment the code which allows narroing of property object
type in continuation class.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149625 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Sema/SemaObjCProperty.cpp b/lib/Sema/SemaObjCProperty.cpp
index 7f6d8c34f4..42a5c9d0e8 100644
--- a/lib/Sema/SemaObjCProperty.cpp
+++ b/lib/Sema/SemaObjCProperty.cpp
@@ -279,6 +279,9 @@ Sema::HandlePropertyInClassExtension(Scope *S,
   if (!Context.hasSameType(PIDecl->getType(), PDecl->getType())) {
     bool IncompatibleObjC = false;
     QualType ConvertedType;
+    // Relax the strict type matching for property type in continuation class.
+    // Allow property object type of continuation class to be different as long
+    // as it narrows the object type in its primary class property.
     if (!isa<ObjCObjectPointerType>(PIDecl->getType()) ||
         !isa<ObjCObjectPointerType>(PDecl->getType()) ||
         (!isObjCPointerConversion(PDecl->getType(), PIDecl->getType(),