1 // RUN: rm -rf %t 2 // RUN: %clang_cc1 -fblocks -objcmt-migrate-annotation -objcmt-migrate-instancetype -objcmt-migrate-readwrite-property -mt-migrate-directory %t %s -x objective-c -triple x86_64-apple-darwin11 3 // RUN: c-arcmt-test -mt-migrate-directory %t | arcmt-test -verify-transformed-files %s.result 4 // RUN: %clang_cc1 -fblocks -triple x86_64-apple-darwin10 -fsyntax-only -x objective-c %s.result 5 6 #ifndef CF_IMPLICIT_BRIDGING_ENABLED 7 #if __has_feature(arc_cf_code_audited) 8 #define CF_IMPLICIT_BRIDGING_ENABLED _Pragma("clang arc_cf_code_audited begin") 9 #else 10 #define CF_IMPLICIT_BRIDGING_ENABLED 11 #endif 12 #endif 13 14 #ifndef CF_IMPLICIT_BRIDGING_DISABLED 15 #if __has_feature(arc_cf_code_audited) 16 #define CF_IMPLICIT_BRIDGING_DISABLED _Pragma("clang arc_cf_code_audited end") 17 #else 18 #define CF_IMPLICIT_BRIDGING_DISABLED 19 #endif 20 #endif 21 22 #if __has_feature(attribute_ns_returns_retained) 23 #define NS_RETURNS_RETAINED __attribute__((ns_returns_retained)) 24 #endif 25 #if __has_feature(attribute_cf_returns_retained) 26 #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained)) 27 #endif 28 #if __has_feature(attribute_ns_returns_not_retained) 29 #define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained)) 30 #endif 31 #if __has_feature(attribute_cf_returns_not_retained) 32 #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained)) 33 #endif 34 #if __has_feature(attribute_ns_consumes_self) 35 #define NS_CONSUMES_SELF __attribute__((ns_consumes_self)) 36 #endif 37 #if __has_feature(attribute_ns_consumed) 38 #define NS_CONSUMED __attribute__((ns_consumed)) 39 #endif 40 #if __has_feature(attribute_cf_consumed) 41 #define CF_CONSUMED __attribute__((cf_consumed)) 42 #endif 43 #if __has_attribute(ns_returns_autoreleased) 44 #define NS_RETURNS_AUTORELEASED __attribute__((ns_returns_autoreleased)) 45 #endif 46 47 //===----------------------------------------------------------------------===// 48 // The following code is reduced using delta-debugging from Mac OS X headers: 49 // 50 // #include <Cocoa/Cocoa.h> 51 // #include <CoreFoundation/CoreFoundation.h> 52 // #include <DiskArbitration/DiskArbitration.h> 53 // #include <QuartzCore/QuartzCore.h> 54 // #include <Quartz/Quartz.h> 55 // #include <IOKit/IOKitLib.h> 56 // 57 // It includes the basic definitions for the test cases below. 58 //===----------------------------------------------------------------------===// 59 60 typedef unsigned int __darwin_natural_t; 61 typedef unsigned long uintptr_t; 62 typedef unsigned int uint32_t; 63 typedef unsigned long long uint64_t; 64 typedef unsigned int UInt32; 65 typedef signed long CFIndex; 66 typedef CFIndex CFByteOrder; 67 typedef struct { 68 CFIndex location; 69 CFIndex length; 70 } CFRange; 71 static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) { 72 CFRange range; 73 range.location = loc; 74 range.length = len; 75 return range; 76 } 77 typedef const void * CFTypeRef; 78 typedef const struct __CFString * CFStringRef; 79 typedef const struct __CFAllocator * CFAllocatorRef; 80 extern const CFAllocatorRef kCFAllocatorDefault; 81 extern CFTypeRef CFRetain(CFTypeRef cf); 82 83 CF_IMPLICIT_BRIDGING_ENABLED 84 85 extern void CFRelease(CFTypeRef cf); 86 87 CF_IMPLICIT_BRIDGING_DISABLED 88 89 extern CFTypeRef CFMakeCollectable(CFTypeRef cf); 90 typedef struct { 91 } 92 CFArrayCallBacks; 93 extern const CFArrayCallBacks kCFTypeArrayCallBacks; 94 typedef const struct __CFArray * CFArrayRef; 95 typedef struct __CFArray * CFMutableArrayRef; 96 extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks) CF_RETURNS_RETAINED; 97 extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx) CF_RETURNS_NOT_RETAINED; 98 extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value); 99 typedef struct { 100 } 101 CFDictionaryKeyCallBacks; 102 extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks; 103 typedef struct { 104 } 105 CFDictionaryValueCallBacks; 106 extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks; 107 typedef const struct __CFDictionary * CFDictionaryRef; 108 typedef struct __CFDictionary * CFMutableDictionaryRef; 109 extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks) CF_RETURNS_RETAINED; 110 typedef UInt32 CFStringEncoding; 111 enum { 112 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 }; 113 extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding) CF_RETURNS_RETAINED; 114 typedef double CFTimeInterval; 115 typedef CFTimeInterval CFAbsoluteTime; 116 extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void); 117 typedef const struct __CFDate * CFDateRef; 118 extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at) CF_RETURNS_RETAINED; 119 extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate); 120 typedef __darwin_natural_t natural_t; 121 typedef natural_t mach_port_name_t; 122 typedef mach_port_name_t mach_port_t; 123 typedef int kern_return_t; 124 typedef kern_return_t mach_error_t; 125 enum { 126 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 }; 127 typedef CFIndex CFNumberType; 128 typedef const struct __CFNumber * CFNumberRef; 129 extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr) CF_RETURNS_RETAINED; 130 typedef const struct __CFAttributedString *CFAttributedStringRef; 131 typedef struct __CFAttributedString *CFMutableAttributedStringRef; 132 extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) CF_RETURNS_RETAINED ; 133 extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) CF_RETURNS_RETAINED ; 134 extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ; 135 typedef signed char BOOL; 136 typedef unsigned long NSUInteger; 137 @class NSString, Protocol; 138 extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2))); 139 typedef struct _NSZone NSZone; 140 @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator; 141 @protocol NSObject 142 - (BOOL)isEqual:(id)object; 143 - (id)retain; 144 - (oneway void)release; 145 - (id)autorelease; 146 - (NSString *)description; 147 - (instancetype)init; 148 @end 149 @protocol NSCopying 150 - (id)copyWithZone:(NSZone *)zone; 151 @end 152 @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone; 153 @end 154 @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; 155 @end 156 @interface NSObject <NSObject> {} 157 + (id)allocWithZone:(NSZone *)zone; 158 + (id)alloc; 159 + (id)new; 160 - (void)dealloc; 161 @end 162 @interface NSObject (NSCoderMethods) 163 - (id)awakeAfterUsingCoder:(NSCoder *)aDecoder; 164 @end 165 extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone); 166 typedef struct { 167 } 168 NSFastEnumerationState; 169 @protocol NSFastEnumeration 170 - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len; 171 @end 172 @class NSString, NSDictionary; 173 @interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value; 174 @end 175 @interface NSNumber : NSValue 176 - (char)charValue; 177 - (instancetype)initWithInt:(int)value; 178 + (NSNumber *)numberWithInt:(int)value; 179 @end 180 @class NSString; 181 @interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> 182 - (NSUInteger)count; 183 - (instancetype)initWithObjects:(const id [])objects count:(NSUInteger)cnt; 184 + (instancetype)arrayWithObject:(id)anObject; 185 + (instancetype)arrayWithObjects:(const id [])objects count:(NSUInteger)cnt; 186 + (instancetype)arrayWithObjects:(id)firstObj, ... __attribute__((sentinel(0,1))); 187 - (instancetype)initWithObjects:(id)firstObj, ... __attribute__((sentinel(0,1))); 188 - (instancetype)initWithArray:(NSArray *)array; 189 @end @interface NSArray (NSArrayCreation) + (instancetype)array; 190 @end @interface NSAutoreleasePool : NSObject { 191 } 192 - (void)drain; 193 @end extern NSString * const NSBundleDidLoadNotification; 194 typedef double NSTimeInterval; 195 @interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate; 196 @end typedef unsigned short unichar; 197 @interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> 198 - (NSUInteger)length; 199 - (NSString *)stringByAppendingString:(NSString *)aString; 200 - ( const char *)UTF8String; 201 - (instancetype)initWithUTF8String:(const char *)nullTerminatedCString; 202 + (instancetype)stringWithUTF8String:(const char *)nullTerminatedCString; 203 @end @class NSString, NSURL, NSError; 204 @interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 205 + (instancetype)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length; 206 + (instancetype)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b; 207 @end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary; 208 @interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> 209 - (NSUInteger)count; 210 + (instancetype)dictionaryWithObjects:(NSArray *)objects forKeys:(NSArray *)keys; 211 + (instancetype)dictionaryWithObjects:(const id [])objects forKeys:(const id <NSCopying> [])keys count:(NSUInteger)cnt; 212 @end 213 @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey; 214 - (void)setObject:(id)anObject forKey:(id)aKey; 215 @end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (instancetype)dictionaryWithCapacity:(NSUInteger)numItems; 216 @end typedef double CGFloat; 217 struct CGSize { 218 }; 219 typedef struct CGSize CGSize; 220 struct CGRect { 221 }; 222 typedef struct CGRect CGRect; 223 typedef mach_port_t io_object_t; 224 typedef char io_name_t[128]; 225 typedef io_object_t io_iterator_t; 226 typedef io_object_t io_service_t; 227 typedef struct IONotificationPort * IONotificationPortRef; 228 typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator ); 229 230 CF_IMPLICIT_BRIDGING_ENABLED 231 232 io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching ); 233 kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing ); 234 235 CF_IMPLICIT_BRIDGING_DISABLED 236 237 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)); // expected-note {{'IOServiceAddNotification' declared here}} 238 kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef CF_CONSUMED matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification ); 239 240 CF_IMPLICIT_BRIDGING_ENABLED 241 242 CFMutableDictionaryRef IOServiceMatching( const char * name ); 243 CFMutableDictionaryRef IOServiceNameMatching( const char * name ); 244 CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName ); 245 CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path ); 246 CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID ); 247 248 CF_IMPLICIT_BRIDGING_DISABLED 249 250 typedef struct __DASession * DASessionRef; 251 extern DASessionRef DASessionCreate( CFAllocatorRef allocator ) CF_RETURNS_RETAINED; 252 typedef struct __DADisk * DADiskRef; 253 extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name ) CF_RETURNS_RETAINED; 254 extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media ) CF_RETURNS_RETAINED; 255 extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk ) CF_RETURNS_RETAINED; 256 extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk ) CF_RETURNS_RETAINED; 257 @interface NSTask : NSObject - (instancetype)init; 258 @end typedef struct CGColorSpace *CGColorSpaceRef; 259 typedef struct CGImage *CGImageRef; 260 typedef struct CGLayer *CGLayerRef; 261 @interface NSResponder : NSObject <NSCoding> { 262 } 263 @end @protocol NSAnimatablePropertyContainer - (id)animator; 264 @end extern NSString *NSAnimationTriggerOrderIn ; 265 @interface NSView : NSResponder <NSAnimatablePropertyContainer> { 266 } 267 @end @protocol NSValidatedUserInterfaceItem - (SEL)action; 268 @end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem; 269 @end @class NSDate, NSDictionary, NSError, NSException, NSNotification; 270 @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError; 271 @interface NSApplication : NSResponder <NSUserInterfaceValidations> { 272 } 273 - (void)beginSheet:(NSWindow *)sheet modalForWindow:(NSWindow *)docWindow modalDelegate:(id)modalDelegate didEndSelector:(SEL)didEndSelector contextInfo:(void *)contextInfo; 274 @end enum { 275 NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 }; 276 typedef NSUInteger NSApplicationTerminateReply; 277 @protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender; 278 @end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView; 279 @interface NSCell : NSObject <NSCopying, NSCoding> { 280 } 281 @end 282 typedef struct { 283 } 284 CVTimeStamp; 285 @interface CIImage : NSObject <NSCoding, NSCopying> { 286 } 287 typedef int CIFormat; 288 @end enum { 289 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 }; 290 typedef mach_error_t DAReturn; 291 typedef const struct __DADissenter * DADissenterRef; 292 extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string ) CF_RETURNS_RETAINED; 293 @interface CIContext: NSObject { 294 } 295 - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r CF_RETURNS_RETAINED; 296 - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs CF_RETURNS_RETAINED; 297 - (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d CF_RETURNS_RETAINED; 298 @end extern NSString* const QCRendererEventKey; 299 @protocol QCCompositionRenderer - (NSDictionary*) attributes; 300 @end @interface QCRenderer : NSObject <QCCompositionRenderer> { 301 } 302 - (id) createSnapshotImageOfType:(NSString*)type; 303 @end extern NSString* const QCViewDidStartRenderingNotification; 304 @interface QCView : NSView <QCCompositionRenderer> { 305 } 306 - (id) createSnapshotImageOfType:(NSString*)type; 307 @end enum { 308 ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, }; 309 @class ICDevice; 310 @protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device; 311 @end extern NSString *const ICScannerStatusWarmingUp; 312 @class ICScannerDevice; 313 @protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner; 314 @end 315 316 typedef long unsigned int __darwin_size_t; 317 typedef __darwin_size_t size_t; 318 typedef unsigned long CFTypeID; 319 struct CGPoint { 320 CGFloat x; 321 CGFloat y; 322 }; 323 typedef struct CGPoint CGPoint; 324 typedef struct CGGradient *CGGradientRef; 325 typedef uint32_t CGGradientDrawingOptions; 326 extern CFTypeID CGGradientGetTypeID(void); 327 extern CGGradientRef CGGradientCreateWithColorComponents(CGColorSpaceRef 328 space, const CGFloat components[], const CGFloat locations[], size_t count) CF_RETURNS_RETAINED; 329 extern CGGradientRef CGGradientCreateWithColors(CGColorSpaceRef space, 330 CFArrayRef colors, const CGFloat locations[]) CF_RETURNS_RETAINED; 331 extern CGGradientRef CGGradientRetain(CGGradientRef gradient); 332 333 CF_IMPLICIT_BRIDGING_ENABLED 334 335 extern void CGGradientRelease(CGGradientRef gradient); 336 337 CF_IMPLICIT_BRIDGING_DISABLED 338 339 typedef struct CGContext *CGContextRef; 340 extern void CGContextDrawLinearGradient(CGContextRef context, 341 CGGradientRef gradient, CGPoint startPoint, CGPoint endPoint, 342 CGGradientDrawingOptions options); 343 344 CF_IMPLICIT_BRIDGING_ENABLED 345 346 extern CGColorSpaceRef CGColorSpaceCreateDeviceRGB(void); 347 348 CF_IMPLICIT_BRIDGING_DISABLED 349 350 351 @interface NSMutableArray : NSObject 352 - (void)addObject:(id)object; 353 + (instancetype)array; 354 @end 355 356 // This is how NSMakeCollectable is declared in the OS X 10.8 headers. 357 id NSMakeCollectable(CFTypeRef __attribute__((cf_consumed))) __attribute__((ns_returns_retained)); 358 359 typedef const struct __CFUUID * CFUUIDRef; 360 361 extern 362 void *CFPlugInInstanceCreate(CFAllocatorRef allocator, CFUUIDRef factoryUUID, CFUUIDRef typeUUID); 363 364 //===----------------------------------------------------------------------===// 365 // Test cases. 366 //===----------------------------------------------------------------------===// 367 368 CFAbsoluteTime f1() { 369 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); 370 CFDateRef date = CFDateCreate(0, t); 371 CFRetain(date); 372 CFRelease(date); 373 CFDateGetAbsoluteTime(date); // no-warning 374 CFRelease(date); 375 t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released}} 376 return t; 377 } 378 379 CFAbsoluteTime f2() { 380 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); 381 CFDateRef date = CFDateCreate(0, t); 382 [((NSDate*) date) retain]; 383 CFRelease(date); 384 CFDateGetAbsoluteTime(date); // no-warning 385 [((NSDate*) date) release]; 386 t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released}} 387 return t; 388 } 389 390 391 NSDate* global_x; 392 393 // Test to see if we suppress an error when we store the pointer 394 // to a global. 395 396 CFAbsoluteTime f3() { 397 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); 398 CFDateRef date = CFDateCreate(0, t); 399 [((NSDate*) date) retain]; 400 CFRelease(date); 401 CFDateGetAbsoluteTime(date); // no-warning 402 global_x = (NSDate*) date; 403 [((NSDate*) date) release]; 404 t = CFDateGetAbsoluteTime(date); // no-warning 405 return t; 406 } 407 408 //--------------------------------------------------------------------------- 409 // Test case 'f4' differs for region store and basic store. See 410 // retain-release-region-store.m and retain-release-basic-store.m. 411 //--------------------------------------------------------------------------- 412 413 // Test a leak. 414 415 CFAbsoluteTime f5(int x) { 416 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); 417 CFDateRef date = CFDateCreate(0, t); // expected-warning{{leak}} 418 419 if (x) 420 CFRelease(date); 421 422 return t; 423 } 424 425 // Test a leak involving the return. 426 427 CFDateRef f6(int x) { 428 CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // expected-warning{{leak}} 429 CFRetain(date); 430 return date; 431 } 432 433 // Test a leak involving an overwrite. 434 435 CFDateRef f7() { 436 CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); //expected-warning{{leak}} 437 CFRetain(date); 438 date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // expected-warning {{leak}} 439 return date; 440 } 441 442 // Generalization of Create rule. MyDateCreate returns a CFXXXTypeRef, and 443 // has the word create. 444 445 CF_IMPLICIT_BRIDGING_ENABLED 446 447 CFDateRef MyDateCreate(); 448 449 CF_IMPLICIT_BRIDGING_DISABLED 450 451 452 CFDateRef f8() { 453 CFDateRef date = MyDateCreate(); // expected-warning{{leak}} 454 CFRetain(date); 455 return date; 456 } 457 458 __attribute__((cf_returns_retained)) CFDateRef f9() { 459 CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // no-warning 460 int *p = 0; 461 // When allocations fail, CFDateCreate can return null. 462 if (!date) *p = 1; // expected-warning{{null}} 463 return date; 464 } 465 466 // Handle DiskArbitration API: 467 // 468 // http://developer.apple.com/DOCUMENTATION/DARWIN/Reference/DiscArbitrationFramework/ 469 // 470 void f10(io_service_t media, DADiskRef d, CFStringRef s) { 471 DADiskRef disk = DADiskCreateFromBSDName(kCFAllocatorDefault, 0, "hello"); // expected-warning{{leak}} 472 if (disk) NSLog(@"ok"); 473 474 disk = DADiskCreateFromIOMedia(kCFAllocatorDefault, 0, media); // expected-warning{{leak}} 475 if (disk) NSLog(@"ok"); 476 477 CFDictionaryRef dict = DADiskCopyDescription(d); // expected-warning{{leak}} 478 if (dict) NSLog(@"ok"); 479 480 disk = DADiskCopyWholeDisk(d); // expected-warning{{leak}} 481 if (disk) NSLog(@"ok"); 482 483 DADissenterRef dissenter = DADissenterCreate(kCFAllocatorDefault, // expected-warning{{leak}} 484 kDAReturnSuccess, s); 485 if (dissenter) NSLog(@"ok"); 486 487 DASessionRef session = DASessionCreate(kCFAllocatorDefault); // expected-warning{{leak}} 488 if (session) NSLog(@"ok"); 489 } 490 491 // Test retain/release checker with CFString and CFMutableArray. 492 void f11() { 493 // Create the array. 494 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); 495 496 // Create a string. 497 CFStringRef s1 = CFStringCreateWithCString(0, "hello world", 498 kCFStringEncodingUTF8); 499 500 // Add the string to the array. 501 CFArrayAppendValue(A, s1); 502 503 // Decrement the reference count. 504 CFRelease(s1); // no-warning 505 506 // Get the string. We don't own it. 507 s1 = (CFStringRef) CFArrayGetValueAtIndex(A, 0); 508 509 // Release the array. 510 CFRelease(A); // no-warning 511 512 // Release the string. This is a bug. 513 CFRelease(s1); // expected-warning{{Incorrect decrement of the reference count}} 514 } 515 516 // PR 3337: Handle functions declared using typedefs. 517 typedef CFTypeRef CREATEFUN(); 518 519 CF_IMPLICIT_BRIDGING_ENABLED 520 521 CFTypeRef MyCreateFun(); 522 523 CF_IMPLICIT_BRIDGING_DISABLED 524 525 526 void f12() { 527 CFTypeRef o = MyCreateFun(); // expected-warning {{leak}} 528 } 529 530 void f13_autorelease() { 531 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 532 [(id) A autorelease]; // no-warning 533 } 534 535 void f13_autorelease_b() { 536 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); 537 [(id) A autorelease]; 538 [(id) A autorelease]; 539 } // expected-warning{{Object autoreleased too many times}} 540 541 CFMutableArrayRef f13_autorelease_c() { 542 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); 543 [(id) A autorelease]; 544 [(id) A autorelease]; 545 return A; // expected-warning{{Object autoreleased too many times}} 546 } 547 548 CFMutableArrayRef f13_autorelease_d() { 549 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); 550 [(id) A autorelease]; 551 [(id) A autorelease]; 552 CFMutableArrayRef B = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{Object autoreleased too many times}} 553 CFRelease(B); // no-warning 554 while (1) {} 555 } 556 557 558 // This case exercises the logic where the leak site is the same as the allocation site. 559 void f14_leakimmediately() { 560 CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 561 } 562 563 // Test that we track an allocated object beyond the point where the *name* 564 // of the variable storing the reference is no longer live. 565 void f15() { 566 // Create the array. 567 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); 568 CFMutableArrayRef *B = &A; 569 // At this point, the name 'A' is no longer live. 570 CFRelease(*B); // no-warning 571 } 572 573 // Test when we pass NULL to CFRetain/CFRelease/CFMakeCollectable/CFAutorelease. 574 void f16(int x, CFTypeRef p) { 575 if (p) 576 return; 577 578 switch (x) { 579 case 0: 580 CFRelease(p); 581 break; 582 case 1: 583 CFRetain(p); 584 break; 585 case 2: 586 CFMakeCollectable(p); 587 break; 588 case 3: 589 CFAutorelease(p); 590 break; 591 default: 592 break; 593 } 594 } 595 596 // Test that an object is non-null after CFRetain/CFRelease/CFMakeCollectable/CFAutorelease. 597 void f17(int x, CFTypeRef p) { 598 switch (x) { 599 case 0: 600 CFRelease(p); 601 if (!p) 602 CFRelease(0); // no-warning 603 break; 604 case 1: 605 CFRetain(p); 606 if (!p) 607 CFRetain(0); // no-warning 608 break; 609 case 2: 610 CFMakeCollectable(p); 611 if (!p) 612 CFMakeCollectable(0); // no-warning 613 break; 614 case 3: 615 CFAutorelease(p); 616 if (!p) 617 CFAutorelease(0); // no-warning 618 break; 619 default: 620 break; 621 } 622 } 623 624 // Test basic tracking of ivars associated with 'self'. For the retain/release 625 // checker we currently do not want to flag leaks associated with stores 626 // of tracked objects to ivars. 627 @interface SelfIvarTest : NSObject { 628 id myObj; 629 } 630 - (void)test_self_tracking; 631 @end 632 633 @implementation SelfIvarTest 634 - (void)test_self_tracking { 635 myObj = (id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 636 } 637 @end 638 639 // Test return of non-owned objects in contexts where an owned object 640 // is expected. 641 @interface TestReturnNotOwnedWhenExpectedOwned 642 - (NSString*)newString; 643 @end 644 645 @implementation TestReturnNotOwnedWhenExpectedOwned 646 - (NSString*)newString { 647 NSString *s = [NSString stringWithUTF8String:"hello"]; 648 return s; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}} 649 } 650 @end 651 652 // <rdar://problem/6659160> 653 int isFoo(char c); 654 655 static void rdar_6659160(char *inkind, char *inname) 656 { 657 // We currently expect that [NSObject alloc] cannot fail. This 658 // will be a toggled flag in the future. It can indeed return null, but 659 // Cocoa programmers generally aren't expected to reason about out-of-memory 660 // conditions. 661 NSString *kind = [[NSString alloc] initWithUTF8String:inkind]; // expected-warning{{leak}} 662 663 // We do allow stringWithUTF8String to fail. This isn't really correct, as 664 // far as returning 0. In most error conditions it will throw an exception. 665 // If allocation fails it could return 0, but again this 666 // isn't expected. 667 NSString *name = [NSString stringWithUTF8String:inname]; 668 if(!name) 669 return; 670 671 const char *kindC = 0; 672 const char *nameC = 0; 673 674 // In both cases, we cannot reach a point down below where we 675 // dereference kindC or nameC with either being null. This is because 676 // we assume that [NSObject alloc] doesn't fail and that we have the guard 677 // up above. 678 679 if(kind) 680 kindC = [kind UTF8String]; 681 if(name) 682 nameC = [name UTF8String]; 683 if(!isFoo(kindC[0])) // expected-warning{{null}} 684 return; 685 if(!isFoo(nameC[0])) // no-warning 686 return; 687 688 [kind release]; 689 [name release]; // expected-warning{{Incorrect decrement of the reference count}} 690 } 691 692 // PR 3677 - 'allocWithZone' should be treated as following the Cocoa naming 693 // conventions with respect to 'return'ing ownership. 694 @interface PR3677: NSObject @end 695 @implementation PR3677 696 + (id)allocWithZone:(NSZone *)inZone { 697 return [super allocWithZone:inZone]; // no-warning 698 } 699 @end 700 701 // PR 3820 - Reason about calls to -dealloc 702 void pr3820_DeallocInsteadOfRelease(void) 703 { 704 id foo = [[NSString alloc] init]; // no-warning 705 [foo dealloc]; 706 // foo is not leaked, since it has been deallocated. 707 } 708 709 void pr3820_ReleaseAfterDealloc(void) 710 { 711 id foo = [[NSString alloc] init]; 712 [foo dealloc]; 713 [foo release]; // expected-warning{{used after it is release}} 714 // NSInternalInconsistencyException: message sent to deallocated object 715 } 716 717 void pr3820_DeallocAfterRelease(void) 718 { 719 NSLog(@"\n\n[%s]", __FUNCTION__); 720 id foo = [[NSString alloc] init]; 721 [foo release]; 722 [foo dealloc]; // expected-warning{{used after it is released}} 723 // message sent to released object 724 } 725 726 // From <rdar://problem/6704930>. The problem here is that 'length' binds to 727 // '($0 - 1)' after '--length', but SimpleConstraintManager doesn't know how to 728 // reason about '($0 - 1) > constant'. As a temporary hack, we drop the value 729 // of '($0 - 1)' and conjure a new symbol. 730 void rdar6704930(unsigned char *s, unsigned int length) { 731 NSString* name = 0; 732 if (s != 0) { 733 if (length > 0) { 734 while (length > 0) { 735 if (*s == ':') { 736 ++s; 737 --length; 738 name = [[NSString alloc] init]; // no-warning 739 break; 740 } 741 ++s; 742 --length; 743 } 744 if ((length == 0) && (name != 0)) { 745 [name release]; 746 name = 0; 747 } 748 if (length == 0) { // no ':' found -> use it all as name 749 name = [[NSString alloc] init]; // no-warning 750 } 751 } 752 } 753 754 if (name != 0) { 755 [name release]; 756 } 757 } 758 759 //===----------------------------------------------------------------------===// 760 // <rdar://problem/6833332> 761 // One build of the analyzer accidentally stopped tracking the allocated 762 // object after the 'retain'. 763 //===----------------------------------------------------------------------===// 764 765 @interface rdar_6833332 : NSObject <NSApplicationDelegate> { 766 NSWindow *window; 767 } 768 @property (nonatomic, retain) NSWindow *window; 769 @end 770 771 @implementation rdar_6833332 772 @synthesize window; 773 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { 774 NSMutableDictionary *dict = [[NSMutableDictionary dictionaryWithCapacity:4] retain]; // expected-warning{{leak}} 775 776 [dict setObject:@"foo" forKey:@"bar"]; 777 778 NSLog(@"%@", dict); 779 } 780 - (void)dealloc { 781 [window release]; 782 [super dealloc]; 783 } 784 785 - (void)radar10102244 { 786 NSMutableDictionary *dict = [[NSMutableDictionary dictionaryWithCapacity:4] retain]; // expected-warning{{leak}} 787 if (window) 788 NSLog(@"%@", window); 789 } 790 @end 791 792 //===----------------------------------------------------------------------===// 793 // <rdar://problem/6257780> clang checker fails to catch use-after-release 794 //===----------------------------------------------------------------------===// 795 796 int rdar_6257780_Case1() { 797 NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; 798 NSArray *array = [NSArray array]; 799 [array release]; // expected-warning{{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}} 800 [pool drain]; 801 return 0; 802 } 803 804 //===----------------------------------------------------------------------===// 805 // <rdar://problem/10640253> Analyzer is confused about NSAutoreleasePool -allocWithZone:. 806 //===----------------------------------------------------------------------===// 807 808 void rdar_10640253_autorelease_allocWithZone() { 809 NSAutoreleasePool *pool = [[NSAutoreleasePool allocWithZone:(NSZone*)0] init]; 810 (void) pool; 811 } 812 813 //===----------------------------------------------------------------------===// 814 // <rdar://problem/6866843> Checker should understand new/setObject:/release constructs 815 //===----------------------------------------------------------------------===// 816 817 void rdar_6866843() { 818 NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; 819 NSMutableDictionary* dictionary = [[NSMutableDictionary alloc] init]; 820 NSArray* array = [[NSArray alloc] init]; 821 [dictionary setObject:array forKey:@"key"]; 822 [array release]; 823 // Using 'array' here should be fine 824 NSLog(@"array = %@\n", array); // no-warning 825 // Now the array is released 826 [dictionary release]; 827 [pool drain]; 828 } 829 830 831 //===----------------------------------------------------------------------===// 832 // <rdar://problem/6877235> Classes typedef-ed to CF objects should get the same treatment as CF objects 833 //===----------------------------------------------------------------------===// 834 835 typedef CFTypeRef OtherRef; 836 837 @interface RDar6877235 : NSObject {} 838 - (CFTypeRef)_copyCFTypeRef CF_RETURNS_RETAINED; 839 - (OtherRef)_copyOtherRef CF_RETURNS_RETAINED; 840 @end 841 842 @implementation RDar6877235 843 - (CFTypeRef)_copyCFTypeRef { 844 return [[NSString alloc] init]; // no-warning 845 } 846 - (OtherRef)_copyOtherRef { 847 return [[NSString alloc] init]; // no-warning 848 } 849 @end 850 851 //===----------------------------------------------------------------------===// 852 // <rdar://problem/6320065> false positive - init method returns an object 853 // owned by caller 854 //===----------------------------------------------------------------------===// 855 856 @interface RDar6320065 : NSObject { 857 NSString *_foo; 858 } 859 - (instancetype)initReturningNewClass; 860 - (id)_initReturningNewClassBad; 861 - (instancetype)initReturningNewClassBad2; 862 @end 863 864 @interface RDar6320065Subclass : RDar6320065 865 @end 866 867 @implementation RDar6320065 868 - (instancetype)initReturningNewClass { 869 [self release]; 870 self = [[RDar6320065Subclass alloc] init]; // no-warning 871 return self; 872 } 873 - (id)_initReturningNewClassBad { 874 [self release]; 875 [[RDar6320065Subclass alloc] init]; // expected-warning {{leak}} 876 return self; 877 } 878 - (instancetype)initReturningNewClassBad2 { 879 [self release]; 880 self = [[RDar6320065Subclass alloc] init]; 881 return [self autorelease]; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}} 882 } 883 884 @end 885 886 @implementation RDar6320065Subclass 887 @end 888 889 int RDar6320065_test() { 890 RDar6320065 *test = [[RDar6320065 alloc] init]; // no-warning 891 [test release]; 892 return 0; 893 } 894 895 //===----------------------------------------------------------------------===// 896 // <rdar://problem/7129086> -awakeAfterUsingCoder: returns an owned object 897 // and claims the receiver 898 //===----------------------------------------------------------------------===// 899 900 @interface RDar7129086 : NSObject {} @end 901 @implementation RDar7129086 902 - (id)awakeAfterUsingCoder:(NSCoder *)aDecoder { 903 [self release]; // no-warning 904 return [NSString alloc]; // no-warning 905 } 906 @end 907 908 //===----------------------------------------------------------------------===// 909 // <rdar://problem/6859457> [NSData dataWithBytesNoCopy] does not return a 910 // retained object 911 //===----------------------------------------------------------------------===// 912 913 @interface RDar6859457 : NSObject {} 914 - (NSString*) NoCopyString; 915 - (NSString*) noCopyString; 916 @end 917 918 @implementation RDar6859457 919 - (NSString*) NoCopyString { return [[NSString alloc] init]; } // expected-warning{{leak}} 920 - (NSString*) noCopyString { return [[NSString alloc] init]; } // expected-warning{{leak}} 921 @end 922 923 void test_RDar6859457(RDar6859457 *x, void *bytes, NSUInteger dataLength) { 924 [x NoCopyString]; // expected-warning{{leak}} 925 [x noCopyString]; // expected-warning{{leak}} 926 [NSData dataWithBytesNoCopy:bytes length:dataLength]; // no-warning 927 [NSData dataWithBytesNoCopy:bytes length:dataLength freeWhenDone:1]; // no-warning 928 } 929 930 //===----------------------------------------------------------------------===// 931 // PR 4230 - an autorelease pool is not necessarily leaked during a premature 932 // return 933 //===----------------------------------------------------------------------===// 934 935 static void PR4230(void) 936 { 937 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // no-warning 938 NSString *object = [[[NSString alloc] init] autorelease]; // no-warning 939 return; 940 } 941 942 static void PR4230_new(void) 943 { 944 NSAutoreleasePool *pool = [NSAutoreleasePool new]; // no-warning 945 NSString *object = [[[NSString alloc] init] autorelease]; // no-warning 946 return; 947 } 948 949 //===----------------------------------------------------------------------===// 950 // Method name that has a null IdentifierInfo* for its first selector slot. 951 // This test just makes sure that we handle it. 952 //===----------------------------------------------------------------------===// 953 954 @interface TestNullIdentifier 955 @end 956 957 @implementation TestNullIdentifier 958 + (id):(int)x, ... { 959 return [[NSString alloc] init]; // expected-warning{{leak}} 960 } 961 @end 962 963 //===----------------------------------------------------------------------===// 964 // <rdar://problem/6893565> don't flag leaks for return types that cannot be 965 // determined to be CF types 966 //===----------------------------------------------------------------------===// 967 968 // We don't know if 'struct s6893565' represents a Core Foundation type, so 969 // we shouldn't emit an error here. 970 typedef struct s6893565* TD6893565; 971 972 @interface RDar6893565 {} 973 -(TD6893565)newThing; 974 @end 975 976 @implementation RDar6893565 977 -(TD6893565)newThing { 978 return (TD6893565) [[NSString alloc] init]; // no-warning 979 } 980 @end 981 982 //===----------------------------------------------------------------------===// 983 // <rdar://problem/6902710> clang: false positives w/QC and CoreImage methods 984 //===----------------------------------------------------------------------===// 985 986 void rdar6902710(QCView *view, QCRenderer *renderer, CIContext *context, 987 NSString *str, CIImage *img, CGRect rect, 988 CIFormat form, CGColorSpaceRef cs) { 989 [view createSnapshotImageOfType:str]; // expected-warning{{leak}} 990 [renderer createSnapshotImageOfType:str]; // expected-warning{{leak}} 991 [context createCGImage:img fromRect:rect]; // expected-warning{{leak}} 992 [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}} 993 } 994 995 //===----------------------------------------------------------------------===// 996 // <rdar://problem/6945561> -[CIContext createCGLayerWithSize:info:] 997 // misinterpreted by clang scan-build 998 //===----------------------------------------------------------------------===// 999 1000 void rdar6945561(CIContext *context, CGSize size, CFDictionaryRef d) { 1001 [context createCGLayerWithSize:size info:d]; // expected-warning{{leak}} 1002 } 1003 1004 //===----------------------------------------------------------------------===// 1005 // <rdar://problem/6961230> add knowledge of IOKit functions to retain/release 1006 // checker 1007 //===----------------------------------------------------------------------===// 1008 1009 void IOBSDNameMatching_wrapper(mach_port_t masterPort, uint32_t options, const char * bsdName) { 1010 IOBSDNameMatching(masterPort, options, bsdName); // expected-warning{{leak}} 1011 } 1012 1013 void IOServiceMatching_wrapper(const char * name) { 1014 IOServiceMatching(name); // expected-warning{{leak}} 1015 } 1016 1017 void IOServiceNameMatching_wrapper(const char * name) { 1018 IOServiceNameMatching(name); // expected-warning{{leak}} 1019 } 1020 1021 CF_RETURNS_RETAINED CFDictionaryRef CreateDict(); 1022 1023 void IOServiceAddNotification_wrapper(mach_port_t masterPort, const io_name_t notificationType, 1024 mach_port_t wakePort, uintptr_t reference, io_iterator_t * notification ) { 1025 1026 CFDictionaryRef matching = CreateDict(); 1027 CFRelease(matching); 1028 IOServiceAddNotification(masterPort, notificationType, matching, // expected-warning{{used after it is released}} expected-warning{{deprecated}} 1029 wakePort, reference, notification); 1030 } 1031 1032 void IORegistryEntryIDMatching_wrapper(uint64_t entryID ) { 1033 IORegistryEntryIDMatching(entryID); // expected-warning{{leak}} 1034 } 1035 1036 void IOOpenFirmwarePathMatching_wrapper(mach_port_t masterPort, uint32_t options, 1037 const char * path) { 1038 IOOpenFirmwarePathMatching(masterPort, options, path); // expected-warning{{leak}} 1039 } 1040 1041 void IOServiceGetMatchingService_wrapper(mach_port_t masterPort) { 1042 CFDictionaryRef matching = CreateDict(); 1043 IOServiceGetMatchingService(masterPort, matching); 1044 CFRelease(matching); // expected-warning{{used after it is released}} 1045 } 1046 1047 void IOServiceGetMatchingServices_wrapper(mach_port_t masterPort, io_iterator_t *existing) { 1048 CFDictionaryRef matching = CreateDict(); 1049 IOServiceGetMatchingServices(masterPort, matching, existing); 1050 CFRelease(matching); // expected-warning{{used after it is released}} 1051 } 1052 1053 void IOServiceAddMatchingNotification_wrapper(IONotificationPortRef notifyPort, const io_name_t notificationType, 1054 IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification) { 1055 1056 CFDictionaryRef matching = CreateDict(); 1057 IOServiceAddMatchingNotification(notifyPort, notificationType, matching, callback, refCon, notification); 1058 CFRelease(matching); // expected-warning{{used after it is released}} 1059 } 1060 1061 //===----------------------------------------------------------------------===// 1062 // Test of handling objects whose references "escape" to containers. 1063 //===----------------------------------------------------------------------===// 1064 1065 void CFDictionaryAddValue(CFMutableDictionaryRef, void *, void *); 1066 1067 // <rdar://problem/6539791> 1068 void rdar_6539791(CFMutableDictionaryRef y, void* key, void* val_key) { 1069 CFMutableDictionaryRef x = CFDictionaryCreateMutable(kCFAllocatorDefault, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); 1070 CFDictionaryAddValue(y, key, x); 1071 CFRelease(x); // the dictionary keeps a reference, so the object isn't deallocated yet 1072 signed z = 1; 1073 CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); 1074 if (value) { 1075 CFDictionaryAddValue(x, val_key, (void*)value); // no-warning 1076 CFRelease(value); 1077 CFDictionaryAddValue(y, val_key, (void*)value); // no-warning 1078 } 1079 } 1080 1081 // <rdar://problem/6560661> 1082 // Same issue, except with "AppendValue" functions. 1083 void rdar_6560661(CFMutableArrayRef x) { 1084 signed z = 1; 1085 CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); 1086 // CFArrayAppendValue keeps a reference to value. 1087 CFArrayAppendValue(x, value); 1088 CFRelease(value); 1089 CFRetain(value); 1090 CFRelease(value); // no-warning 1091 } 1092 1093 // <rdar://problem/7152619> 1094 // Same issue, excwept with "CFAttributeStringSetAttribute". 1095 void rdar_7152619(CFStringRef str) { 1096 CFAttributedStringRef string = CFAttributedStringCreate(kCFAllocatorDefault, str, 0); 1097 CFMutableAttributedStringRef attrString = CFAttributedStringCreateMutableCopy(kCFAllocatorDefault, 100, string); 1098 CFRelease(string); 1099 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}} 1100 CFAttributedStringSetAttribute(attrString, CFRangeMake(0, 1), str, number); 1101 [number release]; 1102 [number retain]; 1103 CFRelease(attrString); 1104 } 1105 1106 //===----------------------------------------------------------------------===// 1107 // Test of handling CGGradientXXX functions. 1108 //===----------------------------------------------------------------------===// 1109 1110 void rdar_7184450(CGContextRef myContext, CGFloat x, CGPoint myStartPoint, 1111 CGPoint myEndPoint) { 1112 size_t num_locations = 6; 1113 CGFloat locations[6] = { 0.0, 0.265, 0.28, 0.31, 0.36, 1.0 }; 1114 CGFloat components[28] = { 239.0/256.0, 167.0/256.0, 170.0/256.0, 1115 x, // Start color 1116 207.0/255.0, 39.0/255.0, 39.0/255.0, x, 1117 147.0/255.0, 21.0/255.0, 22.0/255.0, x, 1118 175.0/255.0, 175.0/255.0, 175.0/255.0, x, 1119 255.0/255.0,255.0/255.0, 255.0/255.0, x, 1120 255.0/255.0,255.0/255.0, 255.0/255.0, x 1121 }; // End color 1122 1123 CGGradientRef myGradient = 1124 CGGradientCreateWithColorComponents(CGColorSpaceCreateDeviceRGB(), // expected-warning{{leak}} 1125 components, locations, num_locations); 1126 1127 CGContextDrawLinearGradient(myContext, myGradient, myStartPoint, myEndPoint, 1128 0); 1129 CGGradientRelease(myGradient); 1130 } 1131 1132 void rdar_7184450_pos(CGContextRef myContext, CGFloat x, CGPoint myStartPoint, 1133 CGPoint myEndPoint) { 1134 size_t num_locations = 6; 1135 CGFloat locations[6] = { 0.0, 0.265, 0.28, 0.31, 0.36, 1.0 }; 1136 CGFloat components[28] = { 239.0/256.0, 167.0/256.0, 170.0/256.0, 1137 x, // Start color 1138 207.0/255.0, 39.0/255.0, 39.0/255.0, x, 1139 147.0/255.0, 21.0/255.0, 22.0/255.0, x, 1140 175.0/255.0, 175.0/255.0, 175.0/255.0, x, 1141 255.0/255.0,255.0/255.0, 255.0/255.0, x, 1142 255.0/255.0,255.0/255.0, 255.0/255.0, x 1143 }; // End color 1144 1145 CGGradientRef myGradient = 1146 CGGradientCreateWithColorComponents(CGColorSpaceCreateDeviceRGB(), components, locations, num_locations); // expected-warning 2 {{leak}} 1147 1148 CGContextDrawLinearGradient(myContext, myGradient, myStartPoint, myEndPoint, 1149 0); 1150 } 1151 1152 //===----------------------------------------------------------------------===// 1153 // <rdar://problem/7299394> clang false positive: retained instance passed to 1154 // thread in pthread_create marked as leak 1155 // 1156 // Until we have full IPA, the analyzer should stop tracking the reference 1157 // count of objects passed to pthread_create. 1158 // 1159 //===----------------------------------------------------------------------===// 1160 1161 struct _opaque_pthread_t {}; 1162 struct _opaque_pthread_attr_t {}; 1163 typedef struct _opaque_pthread_t *__darwin_pthread_t; 1164 typedef struct _opaque_pthread_attr_t __darwin_pthread_attr_t; 1165 typedef __darwin_pthread_t pthread_t; 1166 typedef __darwin_pthread_attr_t pthread_attr_t; 1167 typedef unsigned long __darwin_pthread_key_t; 1168 typedef __darwin_pthread_key_t pthread_key_t; 1169 1170 int pthread_create(pthread_t *, const pthread_attr_t *, 1171 void *(*)(void *), void *); 1172 1173 int pthread_setspecific(pthread_key_t key, const void *value); 1174 1175 void *rdar_7299394_start_routine(void *p) { 1176 [((id) p) release]; 1177 return 0; 1178 } 1179 void rdar_7299394(pthread_attr_t *attr, pthread_t *thread, void *args) { 1180 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning 1181 pthread_create(thread, attr, rdar_7299394_start_routine, number); 1182 } 1183 void rdar_7299394_positive(pthread_attr_t *attr, pthread_t *thread) { 1184 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}} 1185 } 1186 1187 //===----------------------------------------------------------------------===// 1188 // <rdar://problem/11282706> false positive with not understanding thread 1189 // local storage 1190 //===----------------------------------------------------------------------===// 1191 1192 void rdar11282706(pthread_key_t key) { 1193 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning 1194 pthread_setspecific(key, (void*) number); 1195 } 1196 1197 //===----------------------------------------------------------------------===// 1198 // <rdar://problem/7283567> False leak associated with call to 1199 // CVPixelBufferCreateWithBytes () 1200 // 1201 // According to the Core Video Reference (ADC), CVPixelBufferCreateWithBytes and 1202 // CVPixelBufferCreateWithPlanarBytes can release (via a callback) the 1203 // pixel buffer object. These test cases show how the analyzer stops tracking 1204 // the reference count for the objects passed for this argument. This 1205 // could be made smarter. 1206 //===----------------------------------------------------------------------===// 1207 1208 typedef int int32_t; 1209 typedef UInt32 FourCharCode; 1210 typedef FourCharCode OSType; 1211 typedef uint64_t CVOptionFlags; 1212 typedef int32_t CVReturn; 1213 typedef struct __CVBuffer *CVBufferRef; 1214 typedef CVBufferRef CVImageBufferRef; 1215 typedef CVImageBufferRef CVPixelBufferRef; 1216 typedef void (*CVPixelBufferReleaseBytesCallback)( void *releaseRefCon, const void *baseAddress ); 1217 1218 extern CVReturn CVPixelBufferCreateWithBytes(CFAllocatorRef allocator, 1219 size_t width, 1220 size_t height, 1221 OSType pixelFormatType, 1222 void *baseAddress, 1223 size_t bytesPerRow, 1224 CVPixelBufferReleaseBytesCallback releaseCallback, 1225 void *releaseRefCon, 1226 CFDictionaryRef pixelBufferAttributes, 1227 CVPixelBufferRef *pixelBufferOut) ; 1228 1229 typedef void (*CVPixelBufferReleasePlanarBytesCallback)( void *releaseRefCon, const void *dataPtr, size_t dataSize, size_t numberOfPlanes, const void *planeAddresses[] ); 1230 1231 extern CVReturn CVPixelBufferCreateWithPlanarBytes(CFAllocatorRef allocator, 1232 size_t width, 1233 size_t height, 1234 OSType pixelFormatType, 1235 void *dataPtr, 1236 size_t dataSize, 1237 size_t numberOfPlanes, 1238 void *planeBaseAddress[], 1239 size_t planeWidth[], 1240 size_t planeHeight[], 1241 size_t planeBytesPerRow[], 1242 CVPixelBufferReleasePlanarBytesCallback releaseCallback, 1243 void *releaseRefCon, 1244 CFDictionaryRef pixelBufferAttributes, 1245 CVPixelBufferRef *pixelBufferOut) ; 1246 1247 extern CVReturn CVPixelBufferCreateWithBytes(CFAllocatorRef allocator, 1248 size_t width, 1249 size_t height, 1250 OSType pixelFormatType, 1251 void *baseAddress, 1252 size_t bytesPerRow, 1253 CVPixelBufferReleaseBytesCallback releaseCallback, 1254 void *releaseRefCon, 1255 CFDictionaryRef pixelBufferAttributes, 1256 CVPixelBufferRef *pixelBufferOut) ; 1257 1258 CVReturn rdar_7283567(CFAllocatorRef allocator, size_t width, size_t height, 1259 OSType pixelFormatType, void *baseAddress, 1260 size_t bytesPerRow, 1261 CVPixelBufferReleaseBytesCallback releaseCallback, 1262 CFDictionaryRef pixelBufferAttributes, 1263 CVPixelBufferRef *pixelBufferOut) { 1264 1265 // For the allocated object, it doesn't really matter what type it is 1266 // for the purpose of this test. All we want to show is that 1267 // this is freed later by the callback. 1268 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning 1269 1270 return CVPixelBufferCreateWithBytes(allocator, width, height, pixelFormatType, 1271 baseAddress, bytesPerRow, releaseCallback, 1272 number, // potentially released by callback 1273 pixelBufferAttributes, pixelBufferOut) ; 1274 } 1275 1276 CVReturn rdar_7283567_2(CFAllocatorRef allocator, size_t width, size_t height, 1277 OSType pixelFormatType, void *dataPtr, size_t dataSize, 1278 size_t numberOfPlanes, void *planeBaseAddress[], 1279 size_t planeWidth[], size_t planeHeight[], size_t planeBytesPerRow[], 1280 CVPixelBufferReleasePlanarBytesCallback releaseCallback, 1281 CFDictionaryRef pixelBufferAttributes, 1282 CVPixelBufferRef *pixelBufferOut) { 1283 1284 // For the allocated object, it doesn't really matter what type it is 1285 // for the purpose of this test. All we want to show is that 1286 // this is freed later by the callback. 1287 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning 1288 1289 return CVPixelBufferCreateWithPlanarBytes(allocator, 1290 width, height, pixelFormatType, dataPtr, dataSize, 1291 numberOfPlanes, planeBaseAddress, planeWidth, 1292 planeHeight, planeBytesPerRow, releaseCallback, 1293 number, // potentially released by callback 1294 pixelBufferAttributes, pixelBufferOut) ; 1295 } 1296 1297 //===----------------------------------------------------------------------===// 1298 // <rdar://problem/7358899> False leak associated with 1299 // CGBitmapContextCreateWithData 1300 //===----------------------------------------------------------------------===// 1301 typedef uint32_t CGBitmapInfo; 1302 typedef void (*CGBitmapContextReleaseDataCallback)(void *releaseInfo, void *data); 1303 1304 CGContextRef CGBitmapContextCreateWithData(void *data, 1305 size_t width, size_t height, size_t bitsPerComponent, 1306 size_t bytesPerRow, CGColorSpaceRef space, CGBitmapInfo bitmapInfo, 1307 CGBitmapContextReleaseDataCallback releaseCallback, void *releaseInfo) CF_RETURNS_RETAINED; 1308 1309 void rdar_7358899(void *data, 1310 size_t width, size_t height, size_t bitsPerComponent, 1311 size_t bytesPerRow, CGColorSpaceRef space, CGBitmapInfo bitmapInfo, 1312 CGBitmapContextReleaseDataCallback releaseCallback) { 1313 1314 // For the allocated object, it doesn't really matter what type it is 1315 // for the purpose of this test. All we want to show is that 1316 // this is freed later by the callback. 1317 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning 1318 1319 CGBitmapContextCreateWithData(data, width, height, bitsPerComponent, // expected-warning{{leak}} 1320 bytesPerRow, space, bitmapInfo, releaseCallback, number); 1321 } 1322 1323 //===----------------------------------------------------------------------===// 1324 // <rdar://problem/7265711> allow 'new', 'copy', 'alloc', 'init' prefix to 1325 // start before '_' when determining Cocoa fundamental rule 1326 // 1327 // Previously the retain/release checker just skipped prefixes before the 1328 // first '_' entirely. Now the checker honors the prefix if it results in a 1329 // recognizable naming convention (e.g., 'new', 'init'). 1330 //===----------------------------------------------------------------------===// 1331 1332 @interface RDar7265711 {} 1333 - (id) new_stuff; 1334 @end 1335 1336 void rdar7265711_a(RDar7265711 *x) { 1337 id y = [x new_stuff]; // expected-warning{{leak}} 1338 } 1339 1340 void rdar7265711_b(RDar7265711 *x) { 1341 id y = [x new_stuff]; // no-warning 1342 [y release]; 1343 } 1344 1345 //===----------------------------------------------------------------------===// 1346 // <rdar://problem/7306898> clang thinks [NSCursor dragCopyCursor] returns a 1347 // retained reference 1348 //===----------------------------------------------------------------------===// 1349 1350 @interface NSCursor : NSObject 1351 + (NSCursor *)dragCopyCursor; 1352 @end 1353 1354 void rdar7306898(void) { 1355 // 'dragCopyCursor' does not follow Cocoa's fundamental rule. It is a noun, not an sentence 1356 // implying a 'copy' of something. 1357 NSCursor *c = [NSCursor dragCopyCursor]; // no-warning 1358 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}} 1359 } 1360 1361 //===----------------------------------------------------------------------===// 1362 // <rdar://problem/7252064> sending 'release', 'retain', etc. to a Class 1363 // directly is not likely what the user intended 1364 //===----------------------------------------------------------------------===// 1365 1366 @interface RDar7252064 : NSObject @end 1367 void rdar7252064(void) { 1368 [RDar7252064 release]; // expected-warning{{The 'release' message should be sent to instances of class 'RDar7252064' and not the class directly}} 1369 [RDar7252064 retain]; // expected-warning{{The 'retain' message should be sent to instances of class 'RDar7252064' and not the class directly}} 1370 [RDar7252064 autorelease]; // expected-warning{{The 'autorelease' message should be sent to instances of class 'RDar7252064' and not the class directly}} 1371 [NSAutoreleasePool drain]; // expected-warning{{method '+drain' not found}} expected-warning{{The 'drain' message should be sent to instances of class 'NSAutoreleasePool' and not the class directly}} 1372 } 1373 1374 //===----------------------------------------------------------------------===// 1375 // Tests of ownership attributes. 1376 //===----------------------------------------------------------------------===// 1377 1378 typedef NSString* MyStringTy; 1379 1380 @protocol FooP; 1381 1382 @interface TestOwnershipAttr : NSObject 1383 - (NSString*) returnsAnOwnedString NS_RETURNS_RETAINED; // no-warning 1384 - (NSString*) returnsAnOwnedCFString CF_RETURNS_RETAINED; // no-warning 1385 - (MyStringTy) returnsAnOwnedTypedString NS_RETURNS_RETAINED; // no-warning 1386 - (NSString*) newString NS_RETURNS_NOT_RETAINED; // no-warning 1387 - (NSString*) newString_auto NS_RETURNS_AUTORELEASED; // no-warning 1388 - (NSString*) newStringNoAttr; 1389 - (int) returnsAnOwnedInt NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to methods that return an Objective-C object}} 1390 - (id) pseudoInit NS_CONSUMES_SELF NS_RETURNS_RETAINED; 1391 + (void) consume:(id) NS_CONSUMED x; 1392 + (void) consume2:(id) CF_CONSUMED x; 1393 @end 1394 1395 static int ownership_attribute_doesnt_go_here NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to functions and methods}} 1396 1397 void test_attr_1(TestOwnershipAttr *X) { 1398 NSString *str = [X returnsAnOwnedString]; // expected-warning{{leak}} 1399 } 1400 1401 void test_attr_1b(TestOwnershipAttr *X) { 1402 NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}} 1403 } 1404 1405 void test_attr1c(TestOwnershipAttr *X) { 1406 NSString *str = [X newString]; // no-warning 1407 NSString *str2 = [X newStringNoAttr]; // expected-warning{{leak}} 1408 NSString *str3 = [X newString_auto]; // no-warning 1409 NSString *str4 = [[X newString_auto] retain]; // expected-warning {{leak}} 1410 } 1411 1412 void testattr2_a() { 1413 TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // expected-warning{{leak}} 1414 } 1415 1416 void testattr2_b() { 1417 TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit]; // expected-warning{{leak}} 1418 } 1419 1420 void testattr2_b_11358224_self_assign_looses_the_leak() { 1421 TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit];// expected-warning{{leak}} 1422 x = x; 1423 } 1424 1425 void testattr2_c() { 1426 TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit]; // no-warning 1427 [x release]; 1428 } 1429 1430 void testattr3() { 1431 TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // no-warning 1432 [TestOwnershipAttr consume:x]; 1433 TestOwnershipAttr *y = [TestOwnershipAttr alloc]; // no-warning 1434 [TestOwnershipAttr consume2:y]; 1435 } 1436 1437 void consume_ns(id NS_CONSUMED x); 1438 void consume_cf(id CF_CONSUMED x); 1439 1440 void testattr4() { 1441 TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // no-warning 1442 consume_ns(x); 1443 TestOwnershipAttr *y = [TestOwnershipAttr alloc]; // no-warning 1444 consume_cf(y); 1445 } 1446 1447 @interface TestOwnershipAttr2 : NSObject 1448 - (NSString*) newString NS_RETURNS_NOT_RETAINED; // no-warning 1449 @end 1450 1451 @implementation TestOwnershipAttr2 1452 - (NSString*) newString { 1453 return [NSString alloc]; // expected-warning {{Potential leak of an object}} 1454 } 1455 @end 1456 1457 @interface MyClassTestCFAttr : NSObject {} 1458 - (NSDate*) returnsCFRetained CF_RETURNS_RETAINED; 1459 - (CFDateRef) returnsCFRetainedAsCF CF_RETURNS_RETAINED; 1460 - (CFDateRef) newCFRetainedAsCF CF_RETURNS_NOT_RETAINED; 1461 - (CFDateRef) newCFRetainedAsCFNoAttr CF_RETURNS_RETAINED; 1462 - (NSDate*) alsoReturnsRetained; 1463 - (CFDateRef) alsoReturnsRetainedAsCF CF_RETURNS_NOT_RETAINED; 1464 - (NSDate*) returnsNSRetained NS_RETURNS_RETAINED; 1465 @end 1466 1467 CF_RETURNS_RETAINED 1468 CFDateRef returnsRetainedCFDate() { 1469 return CFDateCreate(0, CFAbsoluteTimeGetCurrent()); 1470 } 1471 1472 @implementation MyClassTestCFAttr 1473 - (NSDate*) returnsCFRetained { 1474 return (NSDate*) returnsRetainedCFDate(); // No leak. 1475 } 1476 1477 - (CFDateRef) returnsCFRetainedAsCF { 1478 return returnsRetainedCFDate(); // No leak. 1479 } 1480 1481 - (CFDateRef) newCFRetainedAsCF { 1482 return (CFDateRef)[(id)[self returnsCFRetainedAsCF] autorelease]; 1483 } 1484 1485 - (CFDateRef) newCFRetainedAsCFNoAttr { 1486 return (CFDateRef)[(id)[self returnsCFRetainedAsCF] autorelease]; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}} 1487 } 1488 1489 - (NSDate*) alsoReturnsRetained { 1490 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 1491 } 1492 1493 - (CFDateRef) alsoReturnsRetainedAsCF { 1494 return returnsRetainedCFDate(); // expected-warning{{leak}} 1495 } 1496 1497 1498 - (NSDate*) returnsNSRetained { 1499 return (NSDate*) returnsRetainedCFDate(); // no-warning 1500 } 1501 @end 1502 1503 //===----------------------------------------------------------------------===// 1504 // Test that leaks post-dominated by "panic" functions are not reported. 1505 // 1506 // <rdar://problem/5905851> do not report a leak when post-dominated by a call 1507 // to a noreturn or panic function 1508 //===----------------------------------------------------------------------===// 1509 1510 void panic() __attribute__((noreturn)); 1511 void panic_not_in_hardcoded_list() __attribute__((noreturn)); 1512 1513 void test_panic_negative() { 1514 signed z = 1; 1515 CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // expected-warning{{leak}} 1516 } 1517 1518 void test_panic_positive() { 1519 signed z = 1; 1520 CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // no-warning 1521 panic(); 1522 } 1523 1524 void test_panic_neg_2(int x) { 1525 signed z = 1; 1526 CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // expected-warning{{leak}} 1527 if (x) 1528 panic(); 1529 } 1530 1531 void test_panic_pos_2(int x) { 1532 signed z = 1; 1533 CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // no-warning 1534 if (x) 1535 panic(); 1536 if (!x) { 1537 // This showed up in <rdar://problem/7796563>, where we silently missed checking 1538 // the function type for noreturn. "panic()" is a hard-coded known panic function 1539 // that isn't always noreturn. 1540 panic_not_in_hardcoded_list(); 1541 } 1542 } 1543 1544 //===----------------------------------------------------------------------===// 1545 // Test uses of blocks (closures) 1546 //===----------------------------------------------------------------------===// 1547 1548 void test_blocks_1_pos(void) { 1549 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}} 1550 ^{}(); 1551 } 1552 1553 void test_blocks_1_indirect_release(void) { 1554 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning 1555 ^{ [number release]; }(); 1556 } 1557 1558 void test_blocks_1_indirect_retain(void) { 1559 // Eventually this should be reported as a leak. 1560 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning 1561 ^{ [number retain]; }(); 1562 } 1563 1564 void test_blocks_1_indirect_release_via_call(void) { 1565 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning 1566 ^(NSObject *o){ [o release]; }(number); 1567 } 1568 1569 void test_blocks_1_indirect_retain_via_call(void) { 1570 NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning {{leak}} 1571 ^(NSObject *o){ [o retain]; }(number); 1572 } 1573 1574 //===--------------------------------------------------------------------===// 1575 // Test sending message to super that returns an object alias. Previously 1576 // this caused a crash in the analyzer. 1577 //===--------------------------------------------------------------------===// 1578 1579 @interface Rdar8015556 : NSObject {} @end 1580 @implementation Rdar8015556 1581 - (id)retain { 1582 return [super retain]; 1583 } 1584 @end 1585 1586 // <rdar://problem/8272168> - Correcly handle Class<...> in Cocoa Conventions 1587 // detector. 1588 1589 @protocol Prot_R8272168 @end 1590 Class <Prot_R8272168> GetAClassThatImplementsProt_R8272168(); 1591 void r8272168() { 1592 GetAClassThatImplementsProt_R8272168(); 1593 } 1594 1595 // Test case for <rdar://problem/8356342>, which in the past triggered 1596 // a false positive. 1597 @interface RDar8356342 1598 - (NSDate*) rdar8356342:(NSDate *)inValue; 1599 @end 1600 1601 @implementation RDar8356342 1602 - (NSDate*) rdar8356342:(NSDate*)inValue { 1603 NSDate *outValue = inValue; 1604 if (outValue == 0) 1605 outValue = [[NSDate alloc] init]; // no-warning 1606 1607 if (outValue != inValue) 1608 [outValue autorelease]; 1609 1610 return outValue; 1611 } 1612 @end 1613 1614 // <rdar://problem/8724287> - This test case previously crashed because 1615 // of a bug in BugReporter. 1616 extern const void *CFDictionaryGetValue(CFDictionaryRef theDict, const void *key) CF_RETURNS_NOT_RETAINED; 1617 typedef struct __CFError * CFErrorRef; 1618 extern const CFStringRef kCFErrorUnderlyingErrorKey; 1619 extern CFDictionaryRef CFErrorCopyUserInfo(CFErrorRef err) CF_RETURNS_RETAINED; 1620 static void rdar_8724287(CFErrorRef error) 1621 { 1622 CFErrorRef error_to_dump; 1623 1624 error_to_dump = error; 1625 while (error_to_dump != ((void*)0)) { 1626 CFDictionaryRef info; 1627 1628 info = CFErrorCopyUserInfo(error_to_dump); // expected-warning{{Potential leak of an object}} 1629 1630 if (info != ((void*)0)) { 1631 } 1632 1633 error_to_dump = (CFErrorRef) CFDictionaryGetValue(info, kCFErrorUnderlyingErrorKey); 1634 } 1635 } 1636 1637 // <rdar://problem/9234108> - Make sure the model applies cf_consumed 1638 // correctly in argument positions besides the first. 1639 1640 CF_IMPLICIT_BRIDGING_ENABLED 1641 1642 extern void *CFStringCreate(void); 1643 1644 CF_IMPLICIT_BRIDGING_DISABLED 1645 1646 extern void rdar_9234108_helper(void *key, void * CF_CONSUMED value); 1647 void rdar_9234108() { 1648 rdar_9234108_helper(0, CFStringCreate()); 1649 } 1650 1651 // <rdar://problem/9726279> - Make sure that objc_method_family works 1652 // to override naming conventions. 1653 struct TwoDoubles { 1654 double one; 1655 double two; 1656 }; 1657 typedef struct TwoDoubles TwoDoubles; 1658 1659 @interface NSValue (Mine) 1660 - (id)_prefix_initWithTwoDoubles:(TwoDoubles)twoDoubles __attribute__((objc_method_family(init))); 1661 @end 1662 1663 @implementation NSValue (Mine) 1664 - (id)_prefix_initWithTwoDoubles:(TwoDoubles)twoDoubles 1665 { 1666 return [self init]; 1667 } 1668 @end 1669 1670 void rdar9726279() { 1671 TwoDoubles twoDoubles = { 0.0, 0.0 }; 1672 NSValue *value = [[NSValue alloc] _prefix_initWithTwoDoubles:twoDoubles]; 1673 [value release]; 1674 } 1675 1676 // <rdar://problem/9732321> 1677 // Test camelcase support for CF conventions. While Core Foundation APIs 1678 // don't use camel casing, other code is allowed to use it. 1679 CFArrayRef camelcase_create_1() { 1680 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 1681 } 1682 1683 CFArrayRef camelcase_createno() { 1684 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}} 1685 } 1686 1687 CFArrayRef camelcase_copy() { 1688 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 1689 } 1690 1691 CFArrayRef camelcase_copying() { 1692 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}} 1693 } 1694 1695 CFArrayRef copyCamelCase() { 1696 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 1697 } 1698 1699 CFArrayRef __copyCamelCase() { 1700 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 1701 } 1702 1703 CFArrayRef __createCamelCase() { 1704 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 1705 } 1706 1707 CFArrayRef camel_create() { 1708 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 1709 } 1710 1711 1712 CFArrayRef camel_creat() { 1713 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}} 1714 } 1715 1716 CFArrayRef camel_copy() { 1717 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 1718 } 1719 1720 CFArrayRef camel_copyMachine() { 1721 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 1722 } 1723 1724 CFArrayRef camel_copymachine() { 1725 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}} 1726 } 1727 1728 // rdar://problem/8024350 1729 @protocol F18P 1730 - (id) clone; 1731 @end 1732 @interface F18 : NSObject<F18P> @end 1733 @interface F18(Cat) 1734 - (id) clone NS_RETURNS_RETAINED; 1735 @end 1736 1737 @implementation F18 1738 - (id) clone { 1739 return [F18 alloc]; 1740 } 1741 @end 1742 1743 // Radar 6582778. 1744 void rdar6582778(void) { 1745 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); 1746 CFTypeRef vals[] = { CFDateCreate(0, t) }; // expected-warning {{leak}} 1747 } 1748 1749 CFTypeRef global; 1750 1751 void rdar6582778_2(void) { 1752 CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); 1753 global = CFDateCreate(0, t); // no-warning 1754 } 1755 1756 // <rdar://problem/10232019> - Test that objects passed to containers 1757 // are marked "escaped". 1758 1759 void rdar10232019() { 1760 NSMutableArray *array = [NSMutableArray array]; 1761 1762 NSString *string = [[NSString alloc] initWithUTF8String:"foo"]; 1763 [array addObject:string]; 1764 [string release]; 1765 1766 NSString *otherString = [string stringByAppendingString:@"bar"]; // no-warning 1767 NSLog(@"%@", otherString); 1768 } 1769 1770 void rdar10232019_positive() { 1771 NSMutableArray *array = [NSMutableArray array]; 1772 1773 NSString *string = [[NSString alloc] initWithUTF8String:"foo"]; 1774 [string release]; 1775 1776 NSString *otherString = [string stringByAppendingString:@"bar"]; // expected-warning {{Reference-counted object is used after it is release}} 1777 NSLog(@"%@", otherString); 1778 } 1779 1780 // RetainCountChecker support for XPC. 1781 // <rdar://problem/9658496> 1782 typedef void * xpc_object_t; 1783 xpc_object_t _CFXPCCreateXPCObjectFromCFObject(CFTypeRef cf); 1784 void xpc_release(xpc_object_t object); 1785 1786 void rdar9658496() { 1787 CFStringRef cf; 1788 xpc_object_t xpc; 1789 cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning 1790 xpc = _CFXPCCreateXPCObjectFromCFObject( cf ); 1791 CFRelease(cf); 1792 xpc_release(xpc); 1793 } 1794 1795 // Support annotations with method families. 1796 @interface RDar10824732 : NSObject 1797 - (instancetype)initWithObj:(id CF_CONSUMED)obj; 1798 @end 1799 1800 @implementation RDar10824732 1801 - (instancetype)initWithObj:(id)obj { 1802 [obj release]; 1803 return [super init]; 1804 } 1805 @end 1806 1807 void rdar_10824732() { 1808 @autoreleasepool { 1809 NSString *obj = @"test"; 1810 RDar10824732 *foo = [[RDar10824732 alloc] initWithObj:obj]; // no-warning 1811 [foo release]; 1812 } 1813 } 1814 1815 // Stop tracking objects passed to functions, which take callbacks as parameters. 1816 // radar://10973977 1817 typedef int (*CloseCallback) (void *); 1818 void ReaderForIO(CloseCallback ioclose, void *ioctx); 1819 int IOClose(void *context); 1820 1821 @protocol SInS <NSObject> 1822 @end 1823 1824 @interface radar10973977 : NSObject 1825 - (id<SInS>)inputS; 1826 - (void)reader; 1827 @end 1828 1829 @implementation radar10973977 1830 - (void)reader 1831 { 1832 id<SInS> inputS = [[self inputS] retain]; 1833 ReaderForIO(IOClose, inputS); 1834 } 1835 - (id<SInS>)inputS 1836 { 1837 return 0; 1838 } 1839 @end 1840 1841 // Object escapes through a selector callback: radar://11398514 1842 extern id NSApp; 1843 @interface MySheetController 1844 - (id<SInS>)inputS; 1845 - (void)showDoSomethingSheetAction:(id)action; 1846 - (void)sheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo; 1847 @end 1848 1849 @implementation MySheetController 1850 - (id<SInS>)inputS { 1851 return 0; 1852 } 1853 - (void)showDoSomethingSheetAction:(id)action { 1854 id<SInS> inputS = [[self inputS] retain]; 1855 [NSApp beginSheet:0 1856 modalForWindow:0 1857 modalDelegate:0 1858 didEndSelector:@selector(sheetDidEnd:returnCode:contextInfo:) 1859 contextInfo:(void *)inputS]; // no - warning 1860 } 1861 - (void)sheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo { 1862 1863 id contextObject = (id)contextInfo; 1864 [contextObject release]; 1865 } 1866 1867 - (id)copyAutoreleaseRadar13081402 { 1868 id x = [[[NSString alloc] initWithUTF8String:"foo"] autorelease]; 1869 [x retain]; 1870 return x; // no warning 1871 } 1872 1873 @end 1874 //===----------------------------------------------------------------------===// 1875 // Test returning allocated memory in a struct. 1876 // 1877 // We currently don't have a general way to track pointers that "escape". 1878 // Here we test that RetainCountChecker doesn't get excited about returning 1879 // allocated CF objects in struct fields. 1880 //===----------------------------------------------------------------------===// 1881 void *malloc(size_t); 1882 struct rdar11104566 { CFStringRef myStr; }; 1883 struct rdar11104566 test_rdar11104566() { 1884 CFStringRef cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning 1885 struct rdar11104566 V; 1886 V.myStr = cf; 1887 return V; // no-warning 1888 } 1889 1890 struct rdar11104566 *test_2_rdar11104566() { 1891 CFStringRef cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning 1892 struct rdar11104566 *V = (struct rdar11104566 *) malloc(sizeof(*V)); 1893 V->myStr = cf; 1894 return V; // no-warning 1895 } 1896 1897 //===----------------------------------------------------------------------===// 1898 // ObjC literals support. 1899 //===----------------------------------------------------------------------===// 1900 1901 void test_objc_arrays() { 1902 { // CASE ONE -- OBJECT IN ARRAY CREATED DIRECTLY 1903 NSObject *o = [[NSObject alloc] init]; 1904 NSArray *a = [[NSArray alloc] initWithObjects:o, (void*)0]; // expected-warning {{leak}} 1905 [o release]; 1906 [a description]; 1907 [o description]; 1908 } 1909 1910 { // CASE TWO -- OBJECT IN ARRAY CREATED BY DUPING AUTORELEASED ARRAY 1911 NSObject *o = [[NSObject alloc] init]; 1912 NSArray *a1 = [NSArray arrayWithObjects:o, (void*)0]; 1913 NSArray *a2 = [[NSArray alloc] initWithArray:a1]; // expected-warning {{leak}} 1914 [o release]; 1915 [a2 description]; 1916 [o description]; 1917 } 1918 1919 { // CASE THREE -- OBJECT IN RETAINED @[] 1920 NSObject *o = [[NSObject alloc] init]; 1921 NSArray *a3 = [@[o] retain]; // expected-warning {{leak}} 1922 [o release]; 1923 [a3 description]; 1924 [o description]; 1925 } 1926 1927 { // CASE FOUR -- OBJECT IN ARRAY CREATED BY DUPING @[] 1928 NSObject *o = [[NSObject alloc] init]; 1929 NSArray *a = [[NSArray alloc] initWithArray:@[o]]; // expected-warning {{leak}} 1930 [o release]; 1931 1932 [a description]; 1933 [o description]; 1934 } 1935 1936 { // CASE FIVE -- OBJECT IN RETAINED @{} 1937 NSValue *o = [[NSValue alloc] init]; 1938 NSDictionary *a = [@{o : o} retain]; // expected-warning {{leak}} 1939 [o release]; 1940 1941 [a description]; 1942 [o description]; 1943 } 1944 } 1945 1946 void test_objc_integer_literals() { 1947 id value = [@1 retain]; // expected-warning {{leak}} 1948 [value description]; 1949 } 1950 1951 void test_objc_boxed_expressions(int x, const char *y) { 1952 id value = [@(x) retain]; // expected-warning {{leak}} 1953 [value description]; 1954 1955 value = [@(y) retain]; // expected-warning {{leak}} 1956 [value description]; 1957 } 1958 1959 // Test NSLog doesn't escape tracked objects. 1960 void rdar11400885(int y) 1961 { 1962 @autoreleasepool { 1963 NSString *printString; 1964 if(y > 2) 1965 printString = [[NSString alloc] init]; 1966 else 1967 printString = [[NSString alloc] init]; 1968 NSLog(@"Once %@", printString); 1969 [printString release]; 1970 NSLog(@"Again: %@", printString); // expected-warning {{Reference-counted object is used after it is released}} 1971 } 1972 } 1973 1974 id makeCollectableNonLeak() { 1975 extern CFTypeRef CFCreateSomething(); 1976 1977 CFTypeRef object = CFCreateSomething(); // +1 1978 CFRetain(object); // +2 1979 id objCObject = NSMakeCollectable(object); // +2 1980 [objCObject release]; // +1 1981 return [objCObject autorelease]; // +0 1982 } 1983 1984 1985 void consumeAndStopTracking(id NS_CONSUMED obj, void (^callback)(void)); 1986 void CFConsumeAndStopTracking(CFTypeRef CF_CONSUMED obj, void (^callback)(void)); 1987 1988 void testConsumeAndStopTracking() { 1989 id retained = [@[] retain]; // +1 1990 consumeAndStopTracking(retained, ^{}); // no-warning 1991 1992 id doubleRetained = [[@[] retain] retain]; // +2 1993 consumeAndStopTracking(doubleRetained, ^{ 1994 [doubleRetained release]; 1995 }); // no-warning 1996 1997 id unretained = @[]; // +0 1998 consumeAndStopTracking(unretained, ^{}); // expected-warning {{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}} 1999 } 2000 2001 void testCFConsumeAndStopTracking() { 2002 id retained = [@[] retain]; // +1 2003 CFConsumeAndStopTracking((CFTypeRef)retained, ^{}); // no-warning 2004 2005 id doubleRetained = [[@[] retain] retain]; // +2 2006 CFConsumeAndStopTracking((CFTypeRef)doubleRetained, ^{ 2007 [doubleRetained release]; 2008 }); // no-warning 2009 2010 id unretained = @[]; // +0 2011 CFConsumeAndStopTracking((CFTypeRef)unretained, ^{}); // expected-warning {{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}} 2012 } 2013 //===----------------------------------------------------------------------===// 2014 // Test 'pragma clang arc_cf_code_audited' support. 2015 //===----------------------------------------------------------------------===// 2016 2017 typedef void *MyCFType; 2018 #pragma clang arc_cf_code_audited begin 2019 MyCFType CreateMyCFType(); 2020 #pragma clang arc_cf_code_audited end 2021 2022 void test_custom_cf() { 2023 MyCFType x = CreateMyCFType(); // expected-warning {{leak of an object stored into 'x'}} 2024 } 2025 2026 //===----------------------------------------------------------------------===// 2027 // Test calling CFPlugInInstanceCreate, which appears in CF but doesn't 2028 // return a CF object. 2029 //===----------------------------------------------------------------------===// 2030 2031 void test_CFPlugInInstanceCreate(CFUUIDRef factoryUUID, CFUUIDRef typeUUID) { 2032 CFPlugInInstanceCreate(kCFAllocatorDefault, factoryUUID, typeUUID); // no-warning 2033 } 2034 2035 //===----------------------------------------------------------------------===// 2036 // PR14927: -drain only has retain-count semantics on NSAutoreleasePool. 2037 //===----------------------------------------------------------------------===// 2038 2039 @interface PR14927 : NSObject 2040 - (void)drain; 2041 @end 2042 2043 void test_drain() { 2044 PR14927 *obj = [[PR14927 alloc] init]; 2045 [obj drain]; 2046 [obj release]; // no-warning 2047 } 2048 2049 //===----------------------------------------------------------------------===// 2050 // Allow cf_returns_retained and cf_returns_not_retained to mark a return 2051 // value as tracked, even if the object isn't a known CF type. 2052 //===----------------------------------------------------------------------===// 2053 2054 MyCFType getCustom() __attribute__((cf_returns_not_retained)); 2055 MyCFType makeCustom() __attribute__((cf_returns_retained)); 2056 2057 void testCustomReturnsRetained() { 2058 MyCFType obj = makeCustom(); // expected-warning {{leak of an object stored into 'obj'}} 2059 } 2060 2061 void testCustomReturnsNotRetained() { 2062 CFRelease(getCustom()); // expected-warning {{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}} 2063 } 2064 2065 //===----------------------------------------------------------------------===// 2066 // Don't print variables which are out of the current scope. 2067 //===----------------------------------------------------------------------===// 2068 @interface MyObj12706177 : NSObject 2069 -(instancetype)initX; 2070 +(void)test12706177; 2071 @end 2072 static int Cond; 2073 @implementation MyObj12706177 2074 -(instancetype)initX { 2075 if (Cond) 2076 return 0; 2077 self = [super init]; 2078 return self; 2079 } 2080 +(void)test12706177 { 2081 id x = [[MyObj12706177 alloc] initX]; //expected-warning {{Potential leak of an object}} 2082 [x release]; 2083 } 2084 @end 2085 2086 //===----------------------------------------------------------------------===// 2087 // <rdar://problem/13783514> xpc_connection_set_finalizer_f 2088 //===----------------------------------------------------------------------===// 2089 2090 typedef xpc_object_t xpc_connection_t; 2091 typedef void (*xpc_finalizer_t)(void *value); 2092 void xpc_connection_set_context(xpc_connection_t connection, void *ctx); 2093 void xpc_connection_set_finalizer_f(xpc_connection_t connection, 2094 xpc_finalizer_t finalizer); 2095 void releaseAfterXPC(void *context) { 2096 [(NSArray *)context release]; 2097 } 2098 2099 void rdar13783514(xpc_connection_t connection) { 2100 xpc_connection_set_context(connection, [[NSMutableArray alloc] init]); 2101 xpc_connection_set_finalizer_f(connection, releaseAfterXPC); 2102 } // no-warning 2103 2104 CFAttributedStringRef CFAttributedCreate(void *CFObj CF_CONSUMED) CF_RETURNS_RETAINED; 2105 2106 @interface Action 2107 @property (nonatomic) SEL action; 2108 @property (nonatomic, assign) id target; 2109 @end 2110
