1// RUN: %check_clang_tidy %s bugprone-assert-side-effect %t
2
3int abort();
4
5@interface NSObject
6@end
7
8@interface NSString
9@end
10
11@interface NSAssertionHandler
12+ (NSAssertionHandler *)currentHandler;
13- handleFailureInMethod:(SEL)cmd object:(NSObject *)obj desc:(NSString *)desc;
14- handleFailureInFunction:(NSString *)desc;
15@end
16
17#ifndef NDEBUG
18#define NSAssert(condition, description, ...)                                    \
19  do {                                                                           \
20    if (__builtin_expect(!(condition), 0)) {                                     \
21      [[NSAssertionHandler currentHandler] handleFailureInMethod:_cmd            \
22                                                          object:self            \
23                                                            desc:(description)]; \
24    }                                                                            \
25  } while (0);
26#define NSCAssert(condition, description, ...)                                     \
27  do {                                                                             \
28    if (__builtin_expect(!(condition), 0)) {                                       \
29      [[NSAssertionHandler currentHandler] handleFailureInFunction:(description)]; \
30    }                                                                              \
31  } while (0);
32#else
33#define NSAssert(condition, description, ...) do {} while (0)
34#define NSCAssert(condition, description, ...) do {} while (0)
35#endif
36
37@interface I : NSObject
38- (void)foo;
39@end
40
41@implementation I
42- (void)foo {
43  int x = 0;
44  NSAssert((++x) == 1, @"Ugh.");
45  // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: side effect in NSAssert() condition discarded in release builds [bugprone-assert-side-effect]
46}
47@end
48
49void foo() {
50  int x = 0;
51  NSCAssert((++x) == 1, @"Ugh.");
52  // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: side effect in NSCAssert() condition discarded in release builds [bugprone-assert-side-effect]
53}
54