Unused ivars checker: also check methods in categories that are defined in the same translation unit. Fixes <rdar://problem/6260004>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85442 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/Analysis/CheckObjCUnusedIVars.cpp b/lib/Analysis/CheckObjCUnusedIVars.cpp
index 6c942aaafc..2d9b53163f 100644
--- a/lib/Analysis/CheckObjCUnusedIVars.cpp
+++ b/lib/Analysis/CheckObjCUnusedIVars.cpp
@@ -74,6 +74,14 @@ static void Scan(IvarUsageMap& M, const ObjCContainerDecl* D) {
     for (ObjCImplementationDecl::propimpl_iterator I = ID->propimpl_begin(),
          E = ID->propimpl_end(); I!=E; ++I)
       Scan(M, *I);
+    
+    // Scan the associated categories as well.
+    for (const ObjCCategoryDecl *CD =
+          ID->getClassInterface()->getCategoryList(); CD ;
+          CD = CD->getNextClassCategory()) {
+      if (const ObjCCategoryImplDecl *CID = CD->getImplementation())
+        Scan(M, CID);
+    }
   }
 }