Add Support for 'warn_unused_result" attribute on

objective-c methods. (radar 7418262).

llvm-svn: 99903

1 files changed, 10 insertions, 2 deletions

diff --git a/clang/test/SemaObjC/method-warn-unused-attribute.m b/clang/test/SemaObjC/method-warn-unused-attribute.m
index d9dcf996ecb..042f4422f80 100644
--- a/clang/test/SemaObjC/method-warn-unused-attribute.m
+++ b/clang/test/SemaObjC/method-warn-unused-attribute.m
@@ -1,8 +1,16 @@
 // RUN: %clang_cc1  -fsyntax-only -Wunused-value -verify %s
 
 @interface INTF
-// Currently this is rejected by both GCC and Clang (and Clang was crashing on it).
-- (id) foo __attribute__((warn_unused_result)); // expected-warning{{warning: 'warn_unused_result' attribute only applies to function types}}
+- (id) foo __attribute__((warn_unused_result)); 
+- (void) garf __attribute__((warn_unused_result)); // expected-warning {{attribute 'warn_unused_result' cannot be applied to Objective-C method without return value}}
+- (int) fee __attribute__((warn_unused_result));
++ (int) c __attribute__((warn_unused_result));
 @end
 
+void foo(INTF *a) {
+  [a garf];
+  [a fee]; // expected-warning {{ignoring return value of function declared with warn_unused_result attribute}}
+  [INTF c]; // expected-warning {{ignoring return value of function declared with warn_unused_result attribute}}
+}
+