rjmccall added a comment.

This was approved by the Objective-C language group as a default-off warning.



================
Comment at: include/clang/Basic/DiagnosticSemaKinds.td:1018
+def warn_objc_property_assign_on_object : Warning<
+  "'assign' attribute must not be of object type, use 'unsafe_unretained' 
instead">,
+  InGroup<ObjCPropertyAssignOnObjectType>, DefaultIgnore;
----------------
"must" is rather strong for a warning.  Maybe something more like "'assign' 
attribute on property of object type could be 'unsafe_unretained'"?


Repository:
  rC Clang

https://reviews.llvm.org/D44539



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