objc++: For atomic properties of c++ class objec typet, appropriate

operator= is called. Issue a warning for non-trivial case until
runtime support is provided. // rdar://6137845


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141302 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 29 insertions, 0 deletions

diff --git a/test/SemaObjCXX/property-synthesis-error.mm b/test/SemaObjCXX/property-synthesis-error.mm
index c67f0a45c7..f79a56db6c 100644
--- a/test/SemaObjCXX/property-synthesis-error.mm
+++ b/test/SemaObjCXX/property-synthesis-error.mm
@@ -30,3 +30,32 @@ int main(void)
 {
   return 0;
 }
+
+// rdar://6137845
+class TCPPObject
+{
+public:
+ TCPPObject(const TCPPObject& inObj);
+ TCPPObject();
+ ~TCPPObject();
+ TCPPObject& operator=(const TCPPObject& inObj);
+private:
+ void* fData;
+};
+
+@interface MyDocument
+{
+@private
+ TCPPObject _cppObject;
+ TCPPObject _ncppObject;
+}
+@property (assign, readwrite) const TCPPObject& cppObject;
+@property (assign, readwrite, nonatomic) const TCPPObject& ncppObject;
+@end
+
+@implementation MyDocument
+
+@synthesize cppObject = _cppObject; // expected-warning {{atomic property of type 'const TCPPObject &' synthesizing setter using non-trivial assignmentoperator}}
+@synthesize ncppObject = _ncppObject;
+
+@end