Any property declared in a class extension might have user

declared setter or getter in current class extension or one
of the other class extensions. Mark them as synthesized as
property will be synthesized when property with same name is
seen in the @implementation. This prevents bogus warning
about unimplemented methods to be issued for these methods.
Fixes // rdar://8747333

llvm-svn: 121597

1 files changed, 23 insertions, 2 deletions

diff --git a/clang/lib/Sema/SemaDeclObjC.cpp b/clang/lib/Sema/SemaDeclObjC.cpp
index 57c19222924..a7014f6755b 100644
--- a/clang/lib/Sema/SemaDeclObjC.cpp
+++ b/clang/lib/Sema/SemaDeclObjC.cpp
@@ -1522,8 +1522,29 @@ void Sema::ActOnAtEnd(Scope *S, SourceRange AtEnd,
 
     // Compare protocol properties with those in category
     CompareProperties(C, C);
-    if (C->IsClassExtension())
-      DiagnoseClassExtensionDupMethods(C, C->getClassInterface());
+    if (C->IsClassExtension()) {
+      ObjCInterfaceDecl *CCPrimary = C->getClassInterface();
+      DiagnoseClassExtensionDupMethods(C, CCPrimary);
+      for (ObjCContainerDecl::prop_iterator I = C->prop_begin(),
+           E = C->prop_end(); I != E; ++I) {
+        // Any property declared in a class extension might have user
+        // declared setter or getter in current class extension or one
+        // of the other class extensions. Mark them as synthesized as
+        // property will be synthesized when property with same name is
+        // seen in the @implementation.
+        for (const ObjCCategoryDecl *ClsExtDecl =
+             CCPrimary->getFirstClassExtension();
+             ClsExtDecl; ClsExtDecl = ClsExtDecl->getNextClassExtension()) {
+          if (ObjCMethodDecl *GetterMethod =
+              ClsExtDecl->getInstanceMethod((*I)->getGetterName()))
+            GetterMethod->setSynthesized(true);
+          if (!(*I)->isReadOnly())
+            if (ObjCMethodDecl *SetterMethod =
+                ClsExtDecl->getInstanceMethod((*I)->getSetterName()))
+              SetterMethod->setSynthesized(true);
+        }        
+      }
+    }
   }
   if (ObjCContainerDecl *CDecl = dyn_cast<ObjCContainerDecl>(ClassDecl)) {
     if (CDecl->getIdentifier())