Objective-C. Warn if user has made explicit call

to +initilize as this results in an extra call
to this method. rdar://16628028


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@216271 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 19 insertions, 0 deletions

diff --git a/test/SemaObjC/warn-explicit-call-initialize.m b/test/SemaObjC/warn-explicit-call-initialize.m
new file mode 100644
index 0000000000..786894cb1d
--- /dev/null
+++ b/test/SemaObjC/warn-explicit-call-initialize.m
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1  -fsyntax-only  -triple x86_64-apple-darwin10 -verify %s
+// rdar://16628028
+
+@interface NSObject
++ (void)initialize; // expected-note {{method 'initialize' declared here}}
+@end
+
+@interface I : NSObject 
++ (void)initialize; // expected-note {{method 'initialize' declared here}}
+@end
+
+@implementation I
+- (void) Meth { 
+  [I initialize];     // expected-warning {{explicit call to +initialize results in duplicate call to +initialize}} 
+  [NSObject initialize]; // expected-warning {{explicit call to +initialize results in duplicate call to +initialize}}
+}
++ (void)initialize {}
+@end
+