Implemenent objective-c's NSObject attribute as a way of ddeclaraing c-type
objects as an objective-c object.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62197 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index b548756..c64c101 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -2078,6 +2078,19 @@
// Type Predicates.
//===----------------------------------------------------------------------===//
+/// isObjCNSObjectType - Return true if this is an NSObject object using
+/// NSObject attribute on a c-style pointer type.
+/// FIXME - Make it work directly on types.
+///
+bool ASTContext::isObjCNSObjectType(QualType Ty) const {
+ if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) {
+ if (TypedefDecl *TD = TDT->getDecl())
+ if (TD->getAttr<ObjCNSObjectAttr>())
+ return true;
+ }
+ return false;
+}
+
/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer
/// to an object type. This includes "id" and "Class" (two 'special' pointers
/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified
@@ -2101,7 +2114,11 @@
return true;
// If this a pointer to an interface (e.g. NSString*), it is ok.
- return Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType();
+ if (Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType())
+ return true;
+
+ // If is has NSObject attribute, OK as well.
+ return isObjCNSObjectType(Ty);
}
//===----------------------------------------------------------------------===//