1 files changed, 36 insertions, 0 deletions
diff --git a/clang/test/SemaObjC/undef-superclass-1.m b/clang/test/SemaObjC/undef-superclass-1.m
new file mode 100644
index 0000000..e8e03c5
--- /dev/null
+++ b/clang/test/SemaObjC/undef-superclass-1.m
@@ -0,0 +1,36 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
+
+@class SUPER, Y; // expected-note 2 {{forward declaration of class here}}
+
+@interface INTF :SUPER  // expected-error {{attempting to use the forward class 'SUPER' as superclass of 'INTF'}}
+@end
+
+@interface SUPER @end
+
+@interface INTF1 : SUPER  // expected-note {{previous definition is here}}
+@end
+
+@interface INTF2 : INTF1
+@end
+
+@interface INTF3 : Y // expected-error {{attempting to use the forward class 'Y' as superclass of 'INTF3'}} \
+                     // expected-note{{'INTF3' declared here}}
+@end
+
+@interface INTF1  // expected-error {{duplicate interface definition for class 'INTF1'}}
+@end
+
+@implementation SUPER
+- (void)dealloc {
+    [super dealloc]; // expected-error {{'SUPER' cannot use 'super' because it is a root class}}
+}
+@end
+
+@interface RecursiveClass : RecursiveClass // expected-error {{trying to recursively use 'RecursiveClass' as superclass of 'RecursiveClass'}}
+@end
+
+@implementation RecursiveClass
+@end
+
+@implementation iNTF3 // expected-warning{{cannot find interface declaration for 'iNTF3'; did you mean 'INTF3'?}}
+@end