It is illegal to derefrercne to an interface in
objc's non-fragile ABI.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80739 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/DiagnosticSemaKinds.td b/include/clang/Basic/DiagnosticSemaKinds.td
index 5e9c748..e29e6ab 100644
--- a/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/include/clang/Basic/DiagnosticSemaKinds.td
@@ -1355,6 +1355,8 @@
"invalid argument type %0 to unary expression">;
def err_typecheck_indirection_requires_pointer : Error<
"indirection requires pointer operand (%0 invalid)">;
+def err_indirection_requires_nonfragile_object : Error<
+ "indirection cannot be to an interface in non-fragile ABI (%0 invalid)">;
def err_typecheck_invalid_operands : Error<
"invalid operands to binary expression (%0 and %1)">;
def err_typecheck_sub_ptr_object : Error<
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index c01097e..7072443 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -5023,8 +5023,15 @@
if (const PointerType *PT = Ty->getAs<PointerType>())
return PT->getPointeeType();
- if (const ObjCObjectPointerType *OPT = Ty->getAsObjCObjectPointerType())
- return OPT->getPointeeType();
+ if (const ObjCObjectPointerType *OPT = Ty->getAsObjCObjectPointerType()) {
+ QualType PTy = OPT->getPointeeType();
+ if (LangOpts.ObjCNonFragileABI && PTy->isObjCInterfaceType()) {
+ Diag(OpLoc, diag::err_indirection_requires_nonfragile_object)
+ << Ty << Op->getSourceRange();
+ return QualType();
+ }
+ return PTy;
+ }
Diag(OpLoc, diag::err_typecheck_indirection_requires_pointer)
<< Ty << Op->getSourceRange();