From c9ca4a23b1d2a2d923b283e7022a39c7aa5e87b2 Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Wed, 17 Dec 2008 18:25:24 +0000
Subject: [PATCH] Added comment to Steve's patch to clarify the case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61144 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/AST/DeclObjC.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/AST/DeclObjC.cpp b/lib/AST/DeclObjC.cpp
index 12c224501c..a7e878fc24 100644
--- a/lib/AST/DeclObjC.cpp
+++ b/lib/AST/DeclObjC.cpp
@@ -369,6 +369,9 @@ void ObjCInterfaceDecl::addInstanceVariablesToClass(ObjCIvarDecl **ivars,
 ///
 FieldDecl *ObjCInterfaceDecl::lookupFieldDeclForIvar(ASTContext &Context, 
                                                      const ObjCIvarDecl *ivar) {
+  /* When a super class's ivar is referenced in the subclass method with no ivar 
+     of its own, record for the sub-class is not built yet. Build it lazily
+     here. */
   if (!RecordForDecl)
     addRecordToClass(Context);
   assert(RecordForDecl && "lookupFieldDeclForIvar no storage for class");
-- 
2.50.1