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| author | Fariborz Jahanian <fjahanian@apple.com> | 2011-07-07 23:04:17 +0000 |
|---|---|---|
| committer | Fariborz Jahanian <fjahanian@apple.com> | 2011-07-07 23:04:17 +0000 |
| commit | 7fcce6829d57a55a1a95c765af27c719b3dcc2b9 (patch) | |
| tree | 73eb4d945ab8532a43110bf5b4e35c9be9f91b5e /clang/lib/Sema/SemaCXXCast.cpp | |
| parent | 0c912c5f9b669119a76e9e3e3b087953a829a26a (diff) | |
| download | bcm5719-llvm-7fcce6829d57a55a1a95c765af27c719b3dcc2b9.tar.gz bcm5719-llvm-7fcce6829d57a55a1a95c765af27c719b3dcc2b9.zip | |
objc++-arc: diagnose assignment/cast of a weak-unavailable
object to a __weak object/type. // rdar://9732636.
One item is yet todo.
llvm-svn: 134655
Diffstat (limited to 'clang/lib/Sema/SemaCXXCast.cpp')
| -rw-r--r-- | clang/lib/Sema/SemaCXXCast.cpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/clang/lib/Sema/SemaCXXCast.cpp b/clang/lib/Sema/SemaCXXCast.cpp index d053d5a9e9f..0721814c18c 100644 --- a/clang/lib/Sema/SemaCXXCast.cpp +++ b/clang/lib/Sema/SemaCXXCast.cpp @@ -1717,7 +1717,8 @@ Sema::CXXCheckCStyleCast(SourceRange R, QualType CastTy, ExprValueKind &VK, Kind = CK_Dependent; return Owned(CastExpr); } - + + QualType origCastExprType = CastExpr->getType(); if (VK == VK_RValue && !CastTy->isRecordType()) { ExprResult CastExprRes = DefaultFunctionArrayLvalueConversion(CastExpr); if (CastExprRes.isInvalid()) @@ -1773,8 +1774,15 @@ Sema::CXXCheckCStyleCast(SourceRange R, QualType CastTy, ExprValueKind &VK, } } - if (getLangOptions().ObjCAutoRefCount && tcr == TC_Success) + if (getLangOptions().ObjCAutoRefCount && tcr == TC_Success) { CheckObjCARCConversion(R, CastTy, CastExpr, CCK); + if (!CheckObjCARCUnavailableWeakConversion(CastTy, + origCastExprType)) + Diag(CastExpr->getLocStart(), + diag::err_arc_cast_of_weak_unavailable) + << origCastExprType << CastTy + << CastExpr->getSourceRange(); + } if (tcr != TC_Success && msg != 0) { if (CastExpr->getType() == Context.OverloadTy) { |
