1 files changed, 60 insertions, 0 deletions
diff --git a/clang/test/SemaObjC/format-cstrings-warning.m b/clang/test/SemaObjC/format-cstrings-warning.m
new file mode 100644
index 00000000000..dea9cbd4768
--- /dev/null
+++ b/clang/test/SemaObjC/format-cstrings-warning.m
@@ -0,0 +1,60 @@
+// RUN: %clang_cc1 -Wcstring-format-directive -verify -fsyntax-only %s
+// rdar://18182443
+
+typedef __builtin_va_list __darwin_va_list;
+typedef __builtin_va_list va_list;
+
+@interface NSString @end
+
+@interface NSString (NSStringExtensionMethods)
+- (NSString *)stringByAppendingFormat:(NSString *)format, ... __attribute__((format(__NSString__, 1, 2)));
+- (instancetype)initWithFormat:(NSString *)format, ... __attribute__((format(__NSString__, 1, 2))); // expected-note {{method 'initWithFormat:' declared here}}
+- (instancetype)initWithFormat:(NSString *)format arguments:(va_list)argList __attribute__((format(__NSString__, 1, 0)));
+- (instancetype)initWithFormat:(NSString *)format locale:(id)locale, ... __attribute__((format(__NSString__, 1, 3)));
+- (instancetype)initWithFormat:(NSString *)format locale:(id)locale arguments:(va_list)argList __attribute__((format(__NSString__, 1, 0)));
++ (instancetype)stringWithFormat:(NSString *)format, ... __attribute__((format(__NSString__, 1, 2))); // expected-note {{method 'stringWithFormat:' declared here}}
++ (instancetype)localizedStringWithFormat:(NSString *)format, ... __attribute__((format(__NSString__, 1, 2)));
+@end
+
+@interface NSMutableString : NSString
+@end
+
+@interface NSMutableString (NSMutableStringExtensionMethods)
+
+- (void)appendFormat:(NSString *)format, ... __attribute__((format(__NSString__, 1, 2)));
+
+@end
+
+NSString *ns(NSString *pns) {
+  [pns initWithFormat: @"Number %d length %c name %s", 1, 'a', "something"]; // expected-warning {{using %s directive in NSString which is being passed as a formatting argument to the formatting method}}
+  return [NSString stringWithFormat : @"Hello%s", " There"]; // expected-warning {{using %s directive in NSString which is being passed as a formatting argument to the formatting method}}
+}
+
+
+typedef const struct __CFString * CFStringRef;
+typedef struct __CFString * CFMutableStringRef;
+typedef const struct __CFAllocator * CFAllocatorRef;
+
+
+typedef const struct __CFDictionary * CFDictionaryRef;
+
+
+extern
+CFStringRef CFStringCreateWithFormat(CFAllocatorRef alloc, CFDictionaryRef formatOptions, CFStringRef format, ...) __attribute__((format(CFString, 3, 4)));
+
+extern
+CFStringRef CFStringCreateWithFormatAndArguments(CFAllocatorRef alloc, CFDictionaryRef formatOptions, CFStringRef format, va_list arguments) __attribute__((format(CFString, 3, 0))); // expected-note {{'CFStringCreateWithFormatAndArguments' declared here}}
+
+extern
+void CFStringAppendFormat(CFMutableStringRef theString, CFDictionaryRef formatOptions, CFStringRef format, ...) __attribute__((format(CFString, 3, 4)));
+
+extern
+void CFStringAppendFormatAndArguments(CFMutableStringRef theString, CFDictionaryRef formatOptions, CFStringRef format, va_list arguments) __attribute__((format(CFString, 3, 0))); // expected-note {{'CFStringAppendFormatAndArguments' declared here}}
+
+void foo(va_list argList) {
+  CFAllocatorRef alloc;
+  CFStringCreateWithFormatAndArguments (alloc, 0, (CFStringRef)@"%s\n", argList); // expected-warning {{using %s directive in CFString which is being passed as a formatting argument to the formatting CFfunction}}
+  CFStringAppendFormatAndArguments ((CFMutableStringRef)@"AAAA", 0, (CFStringRef)"Hello %s there %d\n", argList); // expected-warning {{using %s directive in CFString which is being passed as a formatting argument to the formatting CFfunction}}
+  CFStringCreateWithFormatAndArguments (alloc, 0, (CFStringRef)@"%c\n", argList);
+  CFStringAppendFormatAndArguments ((CFMutableStringRef)@"AAAA", 0, (CFStringRef)"%d\n", argList);
+}