objc: diagnose misplacement of objc_suppress_autosynthesis

attribute.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147490 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index 4074afee1c..22a2cfe8a6 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -1581,6 +1581,11 @@ static void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D,
 
 static void handleObjCSuppressAutosynthesisAttr(Sema &S, Decl *D, 
                                             const AttributeList &Attr) {
+  if (!isa<ObjCInterfaceDecl>(D)) {
+    S.Diag(Attr.getLoc(), diag::err_suppress_autosynthesis);
+    return;
+  }
+  
   unsigned NumArgs = Attr.getNumArgs();
   if (NumArgs > 0) {
     S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0;