Patch implements gcc's -Wno-protocol option to suppress warning

on unimplemented methods in protocols adopted by a class.
(radar 7056600).

llvm-svn: 100028

1 files changed, 32 insertions, 0 deletions

diff --git a/clang/test/SemaObjC/no-protocol-option-tests.m b/clang/test/SemaObjC/no-protocol-option-tests.m
new file mode 100644
index 00000000000..5d2da0af48e
--- /dev/null
+++ b/clang/test/SemaObjC/no-protocol-option-tests.m
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -fsyntax-only -Wno-protocol -verify %s
+// rdar: // 7056600
+
+@protocol P
+- PMeth;
+@end
+
+// Test1
+@interface I  <P> @end
+@implementation I @end //  no warning with -Wno-protocol
+
+// Test2
+@interface C -PMeth; @end
+@interface C (Category) <P> @end
+@implementation C (Category) @end //  no warning with -Wno-protocol
+
+// Test2
+@interface super - PMeth; @end
+@interface J : super <P>
+- PMeth;	// expected-note {{ method definition for 'PMeth' not found}}
+@end
+@implementation J @end	// expected-warning {{incomplete implementation}}
+
+// Test3
+@interface K : super <P>
+@end
+@implementation K @end // no warning with -Wno-protocol
+
+// Test4
+@interface Root @end
+@interface L : Root<P> @end
+@implementation L @end // no warning with -Wno-protocol