1 files changed, 28 insertions, 0 deletions
diff --git a/clang/test/SemaObjC/protocol-implementing-class-methods.m b/clang/test/SemaObjC/protocol-implementing-class-methods.m
new file mode 100644
index 00000000000..6d68e8c21cb
--- /dev/null
+++ b/clang/test/SemaObjC/protocol-implementing-class-methods.m
@@ -0,0 +1,28 @@
+// RUN: %clang_cc1  -fsyntax-only -verify %s
+// rdar://7020493
+
+@protocol P1
+@optional
+- (int) PMeth;
+@required
+- (void) : (double) arg; // expected-note {{method declared here}}
+@end
+
+@interface NSImage <P1>
+- (void) initialize; // expected-note {{method declared here}}
+@end
+
+@interface NSImage (AirPortUI)
+- (void) initialize;
+@end
+
+@interface NSImage()
+- (void) CEMeth; // expected-note {{method declared here}}
+@end
+
+@implementation NSImage (AirPortUI)
+- (void) initialize {NSImage *p=0; [p initialize]; } // expected-warning {{category is implementing a method which will also be implemented by its primary class}}
+- (int) PMeth{ return 0; }
+- (void) : (double) arg{}; // expected-warning {{category is implementing a method which will also be implemented by its primary class}}
+- (void) CEMeth {}; // expected-warning {{category is implementing a method which will also be implemented by its primary class}}
+@end