1 // RUN: %clang_cc1 -analyze -analyzer-check-objc-mem -analyzer-store=region -analyzer-max-loop 6 -verify %s
3 //===----------------------------------------------------------------------===//
4 // The following code is reduced using delta-debugging from
5 // Foundation.h (Mac OS X).
7 // It includes the basic definitions for the test cases below.
8 // Not including Foundation.h directly makes this test case both svelte and
9 // portable to non-Mac platforms.
10 //===----------------------------------------------------------------------===//
12 typedef unsigned int __darwin_natural_t;
13 typedef unsigned long UInt32;
14 typedef signed long CFIndex;
15 typedef const void * CFTypeRef;
16 typedef const struct __CFString * CFStringRef;
17 typedef const struct __CFAllocator * CFAllocatorRef;
18 extern const CFAllocatorRef kCFAllocatorDefault;
19 extern CFTypeRef CFRetain(CFTypeRef cf);
20 extern void CFRelease(CFTypeRef cf);
24 extern const CFArrayCallBacks kCFTypeArrayCallBacks;
25 typedef const struct __CFArray * CFArrayRef;
26 typedef struct __CFArray * CFMutableArrayRef;
27 extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks);
28 extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
29 typedef const struct __CFDictionary * CFDictionaryRef;
30 typedef UInt32 CFStringEncoding;
32 kCFStringEncodingMacRoman = 0, kCFStringEncodingWindowsLatin1 = 0x0500, kCFStringEncodingISOLatin1 = 0x0201, kCFStringEncodingNextStepLatin = 0x0B01, kCFStringEncodingASCII = 0x0600, kCFStringEncodingUnicode = 0x0100, kCFStringEncodingUTF8 = 0x08000100, kCFStringEncodingNonLossyASCII = 0x0BFF , kCFStringEncodingUTF16 = 0x0100, kCFStringEncodingUTF16BE = 0x10000100, kCFStringEncodingUTF16LE = 0x14000100, kCFStringEncodingUTF32 = 0x0c000100, kCFStringEncodingUTF32BE = 0x18000100, kCFStringEncodingUTF32LE = 0x1c000100 };
33 extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding);
34 typedef double CFTimeInterval;
35 typedef CFTimeInterval CFAbsoluteTime;
36 typedef const struct __CFDate * CFDateRef;
37 extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
38 extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
39 typedef __darwin_natural_t natural_t;
40 typedef natural_t mach_port_name_t;
41 typedef mach_port_name_t mach_port_t;
42 typedef signed char BOOL;
43 typedef struct _NSZone NSZone;
44 @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
46 - (BOOL)isEqual:(id)object;
48 - (oneway void)release;
49 @end @protocol NSCopying - (id)copyWithZone:(NSZone *)zone;
50 @end @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder;
52 @interface NSObject <NSObject> {}
54 + (id)allocWithZone:(NSZone *)zone;
58 typedef float CGFloat;
59 typedef double NSTimeInterval;
60 @interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate;
62 NSObjCNoType = 0, NSObjCVoidType = 'v', NSObjCCharType = 'c', NSObjCShortType = 's', NSObjCLongType = 'l', NSObjCLonglongType = 'q', NSObjCFloatType = 'f', NSObjCDoubleType = 'd', NSObjCBoolType = 'B', NSObjCSelectorType = ':', NSObjCObjectType = '@', NSObjCStructType = '{', NSObjCPointerType = '^', NSObjCStringType = '*', NSObjCArrayType = '[', NSObjCUnionType = '(', NSObjCBitfield = 'b' }
63 __attribute__((deprecated));
64 typedef int kern_return_t;
65 typedef kern_return_t mach_error_t;
66 typedef mach_port_t io_object_t;
67 typedef io_object_t io_service_t;
68 typedef struct __DASession * DASessionRef;
69 extern DASessionRef DASessionCreate( CFAllocatorRef allocator );
70 typedef struct __DADisk * DADiskRef;
71 extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name );
72 extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media );
73 extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk );
74 extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk );
75 @interface NSAppleEventManager : NSObject {
78 kDAReturnSuccess = 0, kDAReturnError = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x01, kDAReturnBusy = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x02, kDAReturnBadArgument = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x03, kDAReturnExclusiveAccess = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x04, kDAReturnNoResources = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x05, kDAReturnNotFound = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x06, kDAReturnNotMounted = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x07, kDAReturnNotPermitted = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x08, kDAReturnNotPrivileged = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x09, kDAReturnNotReady = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0A, kDAReturnNotWritable = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0B, kDAReturnUnsupported = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0C };
79 typedef mach_error_t DAReturn;
80 typedef const struct __DADissenter * DADissenterRef;
81 extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string );
82 @interface NSNumber : NSObject
83 - (id)initWithInt:(int)value;
85 typedef unsigned long NSUInteger;
86 @interface NSArray : NSObject
87 -(id) initWithObjects:(const id *)objects count:(NSUInteger) cnt;
90 //===----------------------------------------------------------------------===//
92 //===----------------------------------------------------------------------===//
94 // Test to see if we *issue* an error when we store the pointer
95 // to a struct. This differs from basic store.
97 CFAbsoluteTime CFAbsoluteTimeGetCurrent(void);
103 CFAbsoluteTime f4() {
106 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
107 CFDateRef date = CFDateCreate(0, t);
108 [((NSDate*) date) retain];
110 CFDateGetAbsoluteTime(date); // no-warning
111 x.f = (NSDate*) date;
112 [((NSDate*) date) release];
113 t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released.}}
117 // Test that assigning to an self.ivar loses track of an object.
118 // This is a temporary hack to reduce false positives.
119 @interface Test3 : NSObject {
122 - (void)test_self_assign_ivar;
125 @implementation Test3
126 - (void)test_self_assign_ivar {
127 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
128 CFDateRef date = CFDateCreate(0, t); // no-warning
133 //===------------------------------------------------------------------------------------------===//
134 // <rdar://problem/7257223> (also <rdar://problem/7283470>) - False positive due to not invalidating
135 // the reference count of a tracked region that was itself invalidated.
136 //===------------------------------------------------------------------------------------------===//
138 typedef struct __rdar_7257223 { CFDateRef x; } RDar7257223;
139 void rdar_7257223_aux(RDar7257223 *p);
141 CFDateRef rdar7257223_Create(void) {
143 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
144 s.x = CFDateCreate(0, t); // no-warning
145 rdar_7257223_aux(&s);
149 CFDateRef rdar7257223_Create_2(void) {
151 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
152 s.x = CFDateCreate(0, t); // no-warning
156 void rdar7283470(void) {
157 NSNumber *numbers[] = {
158 [[NSNumber alloc] initWithInt:1], // no-warning
159 [[NSNumber alloc] initWithInt:2], // no-warning
160 [[NSNumber alloc] initWithInt:3], // no-warning
161 [[NSNumber alloc] initWithInt:4], // no-warning
162 [[NSNumber alloc] initWithInt:5] // no-warning
165 for (unsigned i = 0 ; i < sizeof(numbers) / sizeof(numbers[0]) ; ++i)
166 [numbers[i] release];
169 void rdar7283470_positive(void) {
170 NSNumber *numbers[] = {
171 [[NSNumber alloc] initWithInt:1], // expected-warning{{leak}}
172 [[NSNumber alloc] initWithInt:2], // expected-warning{{leak}}
173 [[NSNumber alloc] initWithInt:3], // expected-warning{{leak}}
174 [[NSNumber alloc] initWithInt:4], // expected-warning{{leak}}
175 [[NSNumber alloc] initWithInt:5] // expected-warning{{leak}}
179 void rdar7283470_2(void) {
180 NSNumber *numbers[] = {
181 [[NSNumber alloc] initWithInt:1], // no-warning
182 [[NSNumber alloc] initWithInt:2], // no-warning
183 [[NSNumber alloc] initWithInt:3], // no-warning
184 [[NSNumber alloc] initWithInt:4], // no-warning
185 [[NSNumber alloc] initWithInt:5] // no-warning
188 NSArray *s_numbers =[[NSArray alloc] initWithObjects:&numbers[0] count:sizeof(numbers) / sizeof(numbers[0])];
190 for (unsigned i = 0 ; i < sizeof(numbers) / sizeof(numbers[0]) ; ++i)
191 [numbers[i] release];
196 void rdar7283470_2_positive(void) {
197 NSNumber *numbers[] = {
198 [[NSNumber alloc] initWithInt:1], // no-warning
199 [[NSNumber alloc] initWithInt:2], // no-warning
200 [[NSNumber alloc] initWithInt:3], // no-warning
201 [[NSNumber alloc] initWithInt:4], // no-warning
202 [[NSNumber alloc] initWithInt:5] // no-warning
205 NSArray *s_numbers =[[NSArray alloc] initWithObjects: &numbers[0] count:sizeof(numbers) / sizeof(numbers[0])]; // expected-warning{{leak}}
207 for (unsigned i = 0 ; i < sizeof(numbers) / sizeof(numbers[0]) ; ++i)
208 [numbers[i] release];
213 values[0] = values[1] = 0;
216 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
217 values[1] = CFDateCreate(0, t);
221 // A bug in RegionStore::RemoveDeadBindings caused 'values[1]' to get prematurely
222 // pruned from the store.
223 CFRelease(values[1]); // no-warning
227 // <rdar://problem/8261992> Idempotent operation checker false positive with ObjC ivars
228 @interface R8261992 : NSObject {
233 static void R8261992_ChangeMyIvar(R8261992 *tc) {
237 void R8261992_test(R8261992 *tc) {
238 int temp = tc->myIvar;
239 // The ivar binding for tc->myIvar gets invalidated.
240 R8261992_ChangeMyIvar(tc);
241 tc->myIvar = temp; // no-warning
242 tc = [[R8261992 alloc] init];
243 temp = tc->myIvar; // no-warning
244 // The ivar binding for tc->myIvar gets invalidated.
245 R8261992_ChangeMyIvar(tc);
247 [tc release]; // no-warning
248 // did we analyze this?
250 *p = 0xDEADBEEF; // expected-warning{{null}}