[arcmt] In GC, error out when there is a call that returns a pointer to
GC managed non-objc object memory.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143747 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ARCMigrate/Transforms.cpp b/lib/ARCMigrate/Transforms.cpp
index 0decdd6..d0c9bc6 100644
--- a/lib/ARCMigrate/Transforms.cpp
+++ b/lib/ARCMigrate/Transforms.cpp
@@ -324,6 +324,26 @@
delete *I;
}
+bool MigrationContext::isGCOwnedNonObjC(QualType T) {
+ while (!T.isNull()) {
+ if (const AttributedType *AttrT = T->getAs<AttributedType>()) {
+ if (AttrT->getAttrKind() == AttributedType::attr_objc_ownership)
+ return !AttrT->getModifiedType()->isObjCRetainableType();
+ }
+
+ if (T->isArrayType())
+ T = Pass.Ctx.getBaseElementType(T);
+ else if (const PointerType *PT = T->getAs<PointerType>())
+ T = PT->getPointeeType();
+ else if (const ReferenceType *RT = T->getAs<ReferenceType>())
+ T = RT->getPointeeType();
+ else
+ break;
+ }
+
+ return false;
+}
+
void MigrationContext::traverse(TranslationUnitDecl *TU) {
ASTTransform(*this).TraverseDecl(TU);
}