objective-c: issue deprecation/unavailability warnings for methods called on

id <Protocol>. // rdar://11618852


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159084 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/Sema/SemaExprObjC.cpp b/lib/Sema/SemaExprObjC.cpp
index 5304f567ee..598ad0b27a 100644
--- a/lib/Sema/SemaExprObjC.cpp
+++ b/lib/Sema/SemaExprObjC.cpp
@@ -2238,12 +2238,15 @@ ExprResult Sema::BuildInstanceMessage(Expr *Receiver,
 
       // We allow sending a message to a qualified ID ("id<foo>"), which is ok as
       // long as one of the protocols implements the selector (if not, warn).
+      // And as long as message is not deprecated/unavailable (warn if it is).
       if (const ObjCObjectPointerType *QIdTy 
                                    = ReceiverType->getAsObjCQualifiedIdType()) {
         // Search protocols for instance methods.
         Method = LookupMethodInQualifiedType(Sel, QIdTy, true);
         if (!Method)
           Method = LookupMethodInQualifiedType(Sel, QIdTy, false);
+        if (Method && DiagnoseUseOfDecl(Method, Loc))
+          return ExprError();
       } else if (const ObjCObjectPointerType *OCIType
                    = ReceiverType->getAsObjCInterfacePointerType()) {
         // We allow sending a message to a pointer to an interface (an object).