Objective-C++ Sema - Allow static_cast of one objc pointer to

another.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103630 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 34 insertions, 1 deletions

diff --git a/lib/Sema/SemaCXXCast.cpp b/lib/Sema/SemaCXXCast.cpp
index b7b6c3535c..9f8b344562 100644
--- a/lib/Sema/SemaCXXCast.cpp
+++ b/lib/Sema/SemaCXXCast.cpp
@@ -591,7 +591,11 @@ static TryCastResult TryStaticCast(Sema &Self, Expr *&SrcExpr,
       }
     }
   }
-
+  // Allow arbitray objective-c pointer conversion with static casts.
+  if (SrcType->isObjCObjectPointerType() &&
+      DestType->isObjCObjectPointerType())
+    return TC_Success;
+  
   // We tried everything. Everything! Nothing works! :-(
   return TC_NotApplicable;
 }
diff --git a/test/SemaObjCXX/static-cast.mm b/test/SemaObjCXX/static-cast.mm
new file mode 100644
index 0000000000..e2827028de
--- /dev/null
+++ b/test/SemaObjCXX/static-cast.mm
@@ -0,0 +1,29 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+@protocol NSTextViewDelegate;
+
+@interface NSResponder @end
+
+class AutoreleaseObject
+{
+public:
+ AutoreleaseObject();
+ ~AutoreleaseObject();
+
+
+ AutoreleaseObject& operator=(NSResponder* inValue);
+ AutoreleaseObject& operator=(const AutoreleaseObject& inValue);
+
+ AutoreleaseObject(const AutoreleaseObject& inValue);
+
+ operator NSResponder*() const;
+};
+
+
+void InvokeSaveFocus()
+{
+ AutoreleaseObject mResolvedFirstResponder;
+ id<NSTextViewDelegate> Mydelegate;
+ mResolvedFirstResponder = static_cast<NSResponder*>(Mydelegate);
+}
+