[objc] Introduce ObjCInterfaceDecl::getDesignatedInitializers() to get the

designated initializers of an interface.

If the interface declaration does not have methods marked as designated
initializers then the interface inherits the designated initializers of
its super class.

llvm-svn: 196315

1 files changed, 4 insertions, 2 deletions

diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index b732fccacf8..c587452aeb4 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -3723,13 +3723,15 @@ static void handleObjCDesignatedInitializer(Sema &S, Decl *D,
     << SourceRange(Loc, Loc);
     return;
   }
-  DeclContext *DC = Method->getDeclContext();
-  if (!isa<ObjCInterfaceDecl>(DC)) {
+  ObjCInterfaceDecl *IFace =
+      dyn_cast<ObjCInterfaceDecl>(Method->getDeclContext());
+  if (!IFace) {
     S.Diag(D->getLocStart(), diag::err_attr_objc_designated_not_interface)
     << SourceRange(Loc, Loc);
     return;
   }
 
+  IFace->setHasDesignatedInitializers();
   Method->addAttr(::new (S.Context)
                   ObjCDesignatedInitializerAttr(Attr.getRange(), S.Context,
                                          Attr.getAttributeSpellingListIndex()));