Keep track of all declarations of an Objective-C class (both forward
declarations and definitions) as ObjCInterfaceDecls within the same
redeclaration chain. This new representation matches what we do for
C/C++ variables/functions/classes/templates/etc., and makes it
possible to answer the query "where are all of the declarations of
this class?"
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146679 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ARCMigrate/Transforms.cpp b/lib/ARCMigrate/Transforms.cpp
index e208e84..21df257 100644
--- a/lib/ARCMigrate/Transforms.cpp
+++ b/lib/ARCMigrate/Transforms.cpp
@@ -80,7 +80,7 @@
ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl();
if (!AllowOnUnknownClass && (!Class || Class->getName() == "NSObject"))
return false; // id/NSObject is not safe for weak.
- if (!AllowOnUnknownClass && Class->isForwardDecl())
+ if (!AllowOnUnknownClass && !Class->hasDefinition())
return false; // forward classes are not verifiable, therefore not safe.
if (Class->isArcWeakrefUnavailable())
return false;