1 files changed, 35 insertions, 0 deletions
diff --git a/clang/test/SemaObjC/class-def-test-1.m b/clang/test/SemaObjC/class-def-test-1.m
new file mode 100644
index 0000000..0d114b9
--- /dev/null
+++ b/clang/test/SemaObjC/class-def-test-1.m
@@ -0,0 +1,35 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+@protocol SUPER;
+
+@interface SUPER <SUPER> @end // expected-warning {{cannot find protocol definition for 'SUPER'}}
+
+typedef int INTF; //  expected-note {{previous definition is here}}
+
+@interface INTF @end // expected-error {{redefinition of 'INTF' as different kind of symbol}}
+
+@interface OBJECT @end	// expected-note {{previous definition is here}}
+
+@interface INTF1 : OBJECT @end // expected-note {{previous definition is here}}
+
+@interface INTF1 : OBJECT @end // expected-error {{duplicate interface definition for class 'INTF1'}}
+
+typedef int OBJECT; // expected-error {{redefinition of 'OBJECT' as different kind of symbol}}
+
+typedef int OBJECT2; // expected-note {{previous definition is here}}
+@interface INTF2 : OBJECT2 @end // expected-error {{redefinition of 'OBJECT2' as different kind of symbol}}
+
+
+@protocol PROTO;
+
+@interface INTF3 : PROTO @end // expected-error {{cannot find interface declaration for 'PROTO', superclass of 'INTF3'}}
+
+// Make sure we allow the following (for GCC compatibility).
+@interface NSObject @end
+typedef NSObject TD_NSObject;
+@interface XCElementUnit : TD_NSObject {}
+@end
+
+// Make sure we don't typo-correct to ourselves.
+@interface SomeClassSub : SomeClassSup // expected-error{{cannot find interface declaration for 'SomeClassSup', superclass of 'SomeClassSub'}}
+@end