[PATCH] D31006: [Objective-C] Fix "weak-unavailable" warning with -fobjc-weak

[Brian T. Kelley via Phabricator via cfe-commits]

bkelley created this revision.

clang should produce the same errors Objective-C classes that cannot be assigned to weak pointers under both -fobjc-arc and -fobjc-weak. Check for ObjCWeak along with ObjCAutoRefCount when analyzing pointer conversions. Add an -fobjc-weak pass to the existing arc-unavailable-for-weakref test cases to verify the behavior is the same.


https://reviews.llvm.org/D31006

Files:
  include/clang/Sema/Sema.h
  lib/Sema/SemaCast.cpp
  lib/Sema/SemaExpr.cpp
  lib/Sema/SemaExprCXX.cpp
  lib/Sema/SemaExprObjC.cpp
  lib/Sema/SemaPseudoObject.cpp
  test/SemaObjC/arc-unavailable-for-weakref.m
  test/SemaObjCXX/arc-unavailable-for-weakref.mm

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