NoReturn.m revision d427023c334fe03105d9359711a3df4d6f23b344 
1// RUN: clang -analyze -checker-simple -verify %s &&
2// RUN: clang -analyze -checker-cfref -verify %s
3
4#include <stdarg.h>
5
6//===----------------------------------------------------------------------===//
7// The following code is reduced using delta-debugging from
8// Foundation.h (Mac OS X).
9//
10// It includes the basic definitions for the test cases below.
11// Not directly including Foundation.h directly makes this test case 
12// both svelte and portable to non-Mac platforms.
13//===----------------------------------------------------------------------===//
14
15typedef signed char BOOL;
16typedef unsigned int NSUInteger;
17typedef struct _NSZone NSZone;
18@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
19@protocol NSObject  - (BOOL)isEqual:(id)object;
20@end  @protocol NSCopying  - (id)copyWithZone:(NSZone *)zone;
21@end  @protocol NSMutableCopying  - (id)mutableCopyWithZone:(NSZone *)zone; @end
22@protocol NSCoding  - (void)encodeWithCoder:(NSCoder *)aCoder; @end
23@interface NSObject <NSObject> {} @end
24extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
25@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding>
26- (NSUInteger)length;
27+ (id)stringWithFormat:(NSString *)format, ...;
28@end
29@interface NSSimpleCString : NSString {} @end
30@interface NSConstantString : NSSimpleCString @end
31extern void *_NSConstantStringClassReference;
32typedef double NSTimeInterval;
33@interface NSDate : NSObject <NSCopying, NSCoding>  - (NSTimeInterval)timeIntervalSinceReferenceDate; @end
34@class NSString, NSDictionary, NSArray;
35@interface NSException : NSObject <NSCopying, NSCoding> {}
36+ (NSException *)exceptionWithName:(NSString *)name reason:(NSString *)reason userInfo:(NSDictionary *)userInfo;
37- (void)raise;
38@end
39@interface NSException (NSExceptionRaisingConveniences)
40+ (void)raise:(NSString *)name format:(NSString *)format, ...;
41+ (void)raise:(NSString *)name format:(NSString *)format arguments:(va_list)argList;
42@end
43
44enum {NSPointerFunctionsStrongMemory = (0 << 0),     NSPointerFunctionsZeroingWeakMemory = (1 << 0),     NSPointerFunctionsOpaqueMemory = (2 << 0),     NSPointerFunctionsMallocMemory = (3 << 0),     NSPointerFunctionsMachVirtualMemory = (4 << 0),        NSPointerFunctionsObjectPersonality = (0 << 8),     NSPointerFunctionsOpaquePersonality = (1 << 8),     NSPointerFunctionsObjectPointerPersonality = (2 << 8),     NSPointerFunctionsCStringPersonality = (3 << 8),     NSPointerFunctionsStructPersonality = (4 << 8),     NSPointerFunctionsIntegerPersonality = (5 << 8),      NSPointerFunctionsCopyIn = (1 << 16), };
45
46//===----------------------------------------------------------------------===//
47// Test cases.
48//===----------------------------------------------------------------------===//
49
50int f1(int *x, NSString* s) {
51  
52  if (x) ++x;
53  
54  [NSException raise:@"Blah" format:[NSString stringWithFormat:@"Blah %@", s]];
55  
56  return *x; // no-warning
57}
58
59int f2(int *x, ...) {
60  
61  if (x) ++x;
62  va_list alist;
63  va_start(alist, x);
64  
65  [NSException raise:@"Blah" format:@"Blah %@" arguments:alist];
66  
67  return *x; // no-warning
68}
69
70int f3(int* x) {
71  
72  if (x) ++x;
73  
74  [[NSException exceptionWithName:@"My Exception" reason:@"Want to test exceptions." userInfo:0] raise];
75
76  return *x; // no-warning
77}
78
79