Treat hidden Objective-C protocol definitions as if they were
undefined, and don't find methods or protocols within those protocol
definitions. This completes <rdar://problem/10634711>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172686 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclObjC.cpp b/lib/Sema/SemaDeclObjC.cpp
index 54cf1c2..0ffdceb 100644
--- a/lib/Sema/SemaDeclObjC.cpp
+++ b/lib/Sema/SemaDeclObjC.cpp
@@ -743,7 +743,9 @@
// If this is a forward declaration and we are supposed to warn in this
// case, do it.
- if (WarnOnDeclarations && !PDecl->hasDefinition())
+ // FIXME: Recover nicely in the hidden case.
+ if (WarnOnDeclarations &&
+ (!PDecl->hasDefinition() || PDecl->getDefinition()->isHidden()))
Diag(ProtocolId[i].second, diag::warn_undef_protocolref)
<< ProtocolId[i].first;
Protocols.push_back(PDecl);