1 // RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.RetainCount,osx.cocoa.NSAutoreleasePool -analyzer-store=region -fobjc-gc-only -fblocks -verify %s 2 3 //===----------------------------------------------------------------------===// 4 // Header stuff. 5 //===----------------------------------------------------------------------===// 6 7 typedef unsigned int __darwin_natural_t; 8 typedef unsigned long uintptr_t; 9 typedef unsigned int uint32_t; 10 typedef unsigned long long uint64_t; 11 typedef unsigned int UInt32; 12 typedef signed long CFIndex; 13 typedef struct { 14 CFIndex location; 15 CFIndex length; 16 } CFRange; 17 static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) { 18 CFRange range; 19 range.location = loc; 20 range.length = len; 21 return range; 22 } 23 typedef const void * CFTypeRef; 24 typedef const struct __CFString * CFStringRef; 25 typedef const struct __CFAllocator * CFAllocatorRef; 26 extern const CFAllocatorRef kCFAllocatorDefault; 27 extern CFTypeRef CFRetain(CFTypeRef cf); 28 extern void CFRelease(CFTypeRef cf); 29 typedef struct { 30 } 31 CFArrayCallBacks; 32 extern const CFArrayCallBacks kCFTypeArrayCallBacks; 33 typedef const struct __CFArray * CFArrayRef; 34 typedef struct __CFArray * CFMutableArrayRef; 35 extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks); 36 extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx); 37 extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value); 38 typedef struct { 39 } 40 CFDictionaryKeyCallBacks; 41 extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks; 42 typedef struct { 43 } 44 CFDictionaryValueCallBacks; 45 extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks; 46 typedef const struct __CFDictionary * CFDictionaryRef; 47 typedef struct __CFDictionary * CFMutableDictionaryRef; 48 extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks); 49 typedef UInt32 CFStringEncoding; 50 enum { 51 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 }; 52 extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding); 53 typedef double CFTimeInterval; 54 typedef CFTimeInterval CFAbsoluteTime; 55 extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void); 56 typedef const struct __CFDate * CFDateRef; 57 extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at); 58 extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate); 59 typedef __darwin_natural_t natural_t; 60 typedef natural_t mach_port_name_t; 61 typedef mach_port_name_t mach_port_t; 62 typedef int kern_return_t; 63 typedef kern_return_t mach_error_t; 64 enum { 65 kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2, kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4, kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6, kCFNumberCharType = 7, kCFNumberShortType = 8, kCFNumberIntType = 9, kCFNumberLongType = 10, kCFNumberLongLongType = 11, kCFNumberFloatType = 12, kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14, kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16, kCFNumberMaxType = 16 }; 66 typedef CFIndex CFNumberType; 67 typedef const struct __CFNumber * CFNumberRef; 68 extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr); 69 typedef const struct __CFAttributedString *CFAttributedStringRef; 70 typedef struct __CFAttributedString *CFMutableAttributedStringRef; 71 extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ; 72 extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ; 73 extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ; 74 typedef signed char BOOL; 75 typedef unsigned long NSUInteger; 76 @class NSString, Protocol; 77 extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2))); 78 typedef struct _NSZone NSZone; 79 @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator; 80 @protocol NSObject 81 - (BOOL)isEqual:(id)object; 82 - (id)retain; 83 - (oneway void)release; 84 - (id)autorelease; 85 - (Class)class; 86 @end @protocol NSCopying - (id)copyWithZone:(NSZone *)zone; 87 @end @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone; 88 @end @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; 89 @end 90 @interface NSObject <NSObject> {} 91 + (id)allocWithZone:(NSZone *)zone; 92 + (id)alloc; 93 - (void)dealloc; 94 - (oneway void)release; 95 - (id)copy; 96 @end 97 @interface NSObject (NSCoderMethods) 98 - (id)awakeAfterUsingCoder:(NSCoder *)aDecoder; 99 @end 100 extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone); 101 typedef struct { 102 } 103 NSFastEnumerationState; 104 @protocol NSFastEnumeration - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len; 105 @end @class NSString, NSDictionary; 106 @interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value; 107 @end @interface NSNumber : NSValue - (char)charValue; 108 - (id)initWithInt:(int)value; 109 @end @class NSString; 110 @interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count; 111 @end @interface NSArray (NSArrayCreation) + (id)array; 112 @end @interface NSAutoreleasePool : NSObject { 113 } 114 - (void)drain; 115 - (id)init; 116 @end extern NSString * const NSBundleDidLoadNotification; 117 typedef double NSTimeInterval; 118 @interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate; 119 @end typedef unsigned short unichar; 120 @interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 121 - ( const char *)UTF8String; 122 - (id)initWithUTF8String:(const char *)nullTerminatedCString; 123 + (id)stringWithUTF8String:(const char *)nullTerminatedCString; 124 @end @class NSString, NSURL, NSError; 125 @interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 126 + (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length; 127 + (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b; 128 @end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary; 129 @interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count; 130 @end @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey; 131 - (void)setObject:(id)anObject forKey:(id)aKey; 132 @end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems; 133 @end typedef double CGFloat; 134 struct CGSize { 135 }; 136 typedef struct CGSize CGSize; 137 struct CGRect { 138 }; 139 typedef struct CGRect CGRect; 140 typedef mach_port_t io_object_t; 141 typedef char io_name_t[128]; 142 typedef io_object_t io_iterator_t; 143 typedef io_object_t io_service_t; 144 typedef struct IONotificationPort * IONotificationPortRef; 145 typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator ); 146 io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching ); 147 kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing ); 148 kern_return_t IOServiceAddNotification( mach_port_t masterPort, const io_name_t notificationType, CFDictionaryRef matching, mach_port_t wakePort, uintptr_t reference, io_iterator_t * notification ) __attribute__((deprecated)); 149 kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification ); 150 CFMutableDictionaryRef IOServiceMatching( const char * name ); 151 CFMutableDictionaryRef IOServiceNameMatching( const char * name ); 152 CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName ); 153 CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path ); 154 CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID ); 155 typedef struct __DASession * DASessionRef; 156 extern DASessionRef DASessionCreate( CFAllocatorRef allocator ); 157 typedef struct __DADisk * DADiskRef; 158 extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name ); 159 extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media ); 160 extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk ); 161 extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk ); 162 @interface NSTask : NSObject - (id)init; 163 @end typedef struct CGColorSpace *CGColorSpaceRef; 164 typedef struct CGImage *CGImageRef; 165 typedef struct CGLayer *CGLayerRef; 166 @interface NSResponder : NSObject <NSCoding> { 167 } 168 @end @protocol NSAnimatablePropertyContainer - (id)animator; 169 @end extern NSString *NSAnimationTriggerOrderIn ; 170 @interface NSView : NSResponder <NSAnimatablePropertyContainer> { 171 } 172 @end @protocol NSValidatedUserInterfaceItem - (SEL)action; 173 @end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem; 174 @end @class NSDate, NSDictionary, NSError, NSException, NSNotification; 175 @interface NSApplication : NSResponder <NSUserInterfaceValidations> { 176 } 177 @end enum { 178 NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 }; 179 typedef NSUInteger NSApplicationTerminateReply; 180 @protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender; 181 @end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView; 182 @interface NSCell : NSObject <NSCopying, NSCoding> { 183 } 184 @end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError; 185 typedef struct { 186 } 187 CVTimeStamp; 188 @interface CIImage : NSObject <NSCoding, NSCopying> { 189 } 190 typedef int CIFormat; 191 @end enum { 192 kDAReturnSuccess = 0, kDAReturnError = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x01, kDAReturnBusy = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x02, kDAReturnBadArgument = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x03, kDAReturnExclusiveAccess = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x04, kDAReturnNoResources = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x05, kDAReturnNotFound = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x06, kDAReturnNotMounted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x07, kDAReturnNotPermitted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x08, kDAReturnNotPrivileged = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x09, kDAReturnNotReady = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0A, kDAReturnNotWritable = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0B, kDAReturnUnsupported = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0C }; 193 typedef mach_error_t DAReturn; 194 typedef const struct __DADissenter * DADissenterRef; 195 extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string ); 196 @interface CIContext: NSObject { 197 } 198 - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r; 199 - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs; 200 - (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d; 201 @end extern NSString* const QCRendererEventKey; 202 @protocol QCCompositionRenderer - (NSDictionary*) attributes; 203 @end @interface QCRenderer : NSObject <QCCompositionRenderer> { 204 } 205 - (id) createSnapshotImageOfType:(NSString*)type; 206 @end extern NSString* const QCViewDidStartRenderingNotification; 207 @interface QCView : NSView <QCCompositionRenderer> { 208 } 209 - (id) createSnapshotImageOfType:(NSString*)type; 210 @end enum { 211 ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, }; 212 @class ICDevice; 213 @protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device; 214 @end extern NSString *const ICScannerStatusWarmingUp; 215 @class ICScannerDevice; 216 @protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner; 217 @end 218 CFTypeRef CFMakeCollectable(CFTypeRef cf) ; 219 220 static __inline__ __attribute__((always_inline)) id NSMakeCollectable(CFTypeRef 221 cf) { 222 return cf ? (id)CFMakeCollectable(cf) : ((void*)0); 223 } 224 225 //===----------------------------------------------------------------------===// 226 // Test cases. 227 //===----------------------------------------------------------------------===// 228 229 void f1() { 230 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 231 id x = [(id) A autorelease]; 232 CFRelease((CFMutableArrayRef) x); 233 } 234 235 void f2() { 236 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 237 id x = [(id) A retain]; 238 [x release]; 239 [x release]; 240 } 241 242 void f3() { 243 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 244 CFMakeCollectable(A); 245 CFRetain(A); 246 } 247 248 void f3b() { 249 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 250 CFMakeCollectable(A); 251 } 252 253 254 void f4() { 255 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 256 NSMakeCollectable(A); 257 CFRetain(A); 258 } 259 260 void f4b() { 261 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 262 NSMakeCollectable(A); 263 } 264 265 void f5() { 266 id x = [NSMakeCollectable(CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks)) autorelease]; // no-warning 267 } 268 269 void f5b() { 270 id x = [(id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks) autorelease]; // expected-warning{{leak}} 271 } 272 273 // Test return of non-owned objects in contexts where an owned object 274 // is expected. 275 @interface TestReturnNotOwnedWhenExpectedOwned 276 - (NSString*)newString; 277 - (CFMutableArrayRef)newArray; 278 @end 279 280 @implementation TestReturnNotOwnedWhenExpectedOwned 281 - (NSString*)newString { 282 NSString *s = [NSString stringWithUTF8String:"hello"]; // expected-warning{{Potential leak (when using garbage collection) of an object allocated}} 283 CFRetain(s); 284 return s; 285 } 286 - (CFMutableArrayRef)newArray{ 287 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 288 } 289 @end 290 291 //===----------------------------------------------------------------------===// 292 // <rdar://problem/6948053> False positive: object substitution during -init* 293 // methods warns about returning +0 when using -fobjc-gc-only 294 //===----------------------------------------------------------------------===// 295 296 @interface MyClassRdar6948053 : NSObject 297 - (id) init; 298 + (id) shared; 299 @end 300 301 @implementation MyClassRdar6948053 302 +(id) shared { 303 return (id) 0; 304 } 305 - (id) init 306 { 307 Class myClass = [self class]; 308 [self release]; 309 return [[myClass shared] retain]; // no-warning 310 } 311 @end 312 313 //===----------------------------------------------------------------------===// 314 // <rdar://problem/7174400> 'ciContext createCGImage:outputImage fromRect:' returns a retained CF object (not GC'ed)//===----------------------------------------------------------------------===// 315 //===----------------------------------------------------------------------===// 316 317 void rdar_7174400(QCView *view, QCRenderer *renderer, CIContext *context, 318 NSString *str, CIImage *img, CGRect rect, 319 CIFormat form, CGColorSpaceRef cs) { 320 [view createSnapshotImageOfType:str]; // no-warning 321 [renderer createSnapshotImageOfType:str]; // no-warning 322 [context createCGImage:img fromRect:rect]; // expected-warning{{leak}} 323 [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}} 324 } 325 326 //===----------------------------------------------------------------------===// 327 // <rdar://problem/6250216> Warn against using -[NSAutoreleasePool release] in 328 // GC mode 329 //===----------------------------------------------------------------------===// 330 331 void rdar_6250216(void) { 332 NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; 333 [pool release]; // expected-warning{{Use -drain instead of -release when using NSAutoreleasePool and garbage collection}} 334 } 335 336 337 //===----------------------------------------------------------------------===// 338 // <rdar://problem/7407273> Don't crash when analyzing messages sent to blocks 339 //===----------------------------------------------------------------------===// 340 341 @class RDar7407273; 342 typedef void (^RDar7407273Block)(RDar7407273 *operation); 343 void rdar7407273(RDar7407273Block b) { 344 [b copy]; 345 } 346 347 //===----------------------------------------------------------------------===// 348 // Tests of ownership attributes. 349 //===----------------------------------------------------------------------===// 350 351 @interface TestOwnershipAttr : NSObject 352 - (NSString*) returnsAnOwnedString __attribute__((ns_returns_retained)); 353 - (NSString*) returnsAnOwnedCFString __attribute__((cf_returns_retained)); 354 @end 355 356 void test_attr_1(TestOwnershipAttr *X) { 357 NSString *str = [X returnsAnOwnedString]; // no-warning 358 } 359 360 void test_attr_1b(TestOwnershipAttr *X) { 361 NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}} 362 } 363 364 @interface MyClassTestCFAttr : NSObject {} 365 - (NSDate*) returnsCFRetained __attribute__((cf_returns_retained)); 366 - (NSDate*) alsoReturnsRetained; 367 - (NSDate*) returnsNSRetained __attribute__((ns_returns_retained)); 368 @end 369 370 __attribute__((cf_returns_retained)) 371 CFDateRef returnsRetainedCFDate() { 372 return CFDateCreate(0, CFAbsoluteTimeGetCurrent()); 373 } 374 375 @implementation MyClassTestCFAttr 376 - (NSDate*) returnsCFRetained { 377 return (NSDate*) returnsRetainedCFDate(); // No leak. 378 } 379 380 - (NSDate*) alsoReturnsRetained { 381 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 382 } 383 384 - (NSDate*) returnsNSRetained { 385 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 386 } 387 @end 388
