[PATCH Sema Objective-C]. Patch to warn on missing designated initializer

override where at least a declaration of a designated initializer is in a super
class and not necessarily in the current class. rdar://19653785.

llvm-svn: 231700

1 files changed, 10 insertions, 0 deletions

diff --git a/clang/lib/AST/DeclObjC.cpp b/clang/lib/AST/DeclObjC.cpp
index 77995b5261f..abd9b33f5db 100644
--- a/clang/lib/AST/DeclObjC.cpp
+++ b/clang/lib/AST/DeclObjC.cpp
@@ -1213,6 +1213,16 @@ bool ObjCInterfaceDecl::hasDesignatedInitializers() const {
   return data().HasDesignatedInitializers;
 }
 
+bool ObjCInterfaceDecl::hasDesignatedInitializersInSuperClass() const {
+  ObjCInterfaceDecl *OSC = getSuperClass();
+  while (OSC) {
+    if (OSC->hasDesignatedInitializers())
+      return true;
+    OSC = OSC->getSuperClass();
+  }
+  return false;
+}
+
 StringRef
 ObjCInterfaceDecl::getObjCRuntimeNameAsString() const {
   if (ObjCRuntimeNameAttr *ObjCRTName = getAttr<ObjCRuntimeNameAttr>())