retain-release-gc-only.m revision eee3ef177a171c06f826c331e7a9e256d01eaeb0
1// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.NSAutoreleasePool -analyzer-store=basic -verify -fobjc-gc-only -fblocks %s 2// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.NSAutoreleasePool -analyzer-store=region -fobjc-gc-only -fblocks -verify %s 3 4//===----------------------------------------------------------------------===// 5// Header stuff. 6//===----------------------------------------------------------------------===// 7 8typedef unsigned int __darwin_natural_t; 9typedef unsigned long uintptr_t; 10typedef unsigned int uint32_t; 11typedef unsigned long long uint64_t; 12typedef unsigned int UInt32; 13typedef signed long CFIndex; 14typedef struct { 15 CFIndex location; 16 CFIndex length; 17} CFRange; 18static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) { 19 CFRange range; 20 range.location = loc; 21 range.length = len; 22 return range; 23} 24typedef const void * CFTypeRef; 25typedef const struct __CFString * CFStringRef; 26typedef const struct __CFAllocator * CFAllocatorRef; 27extern const CFAllocatorRef kCFAllocatorDefault; 28extern CFTypeRef CFRetain(CFTypeRef cf); 29extern void CFRelease(CFTypeRef cf); 30typedef struct { 31} 32CFArrayCallBacks; 33extern const CFArrayCallBacks kCFTypeArrayCallBacks; 34typedef const struct __CFArray * CFArrayRef; 35typedef struct __CFArray * CFMutableArrayRef; 36extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks); 37extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx); 38extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value); 39typedef struct { 40} 41CFDictionaryKeyCallBacks; 42extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks; 43typedef struct { 44} 45CFDictionaryValueCallBacks; 46extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks; 47typedef const struct __CFDictionary * CFDictionaryRef; 48typedef struct __CFDictionary * CFMutableDictionaryRef; 49extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks); 50typedef UInt32 CFStringEncoding; 51enum { 52kCFStringEncodingMacRoman = 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 }; 53extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding); 54typedef double CFTimeInterval; 55typedef CFTimeInterval CFAbsoluteTime; 56extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void); 57typedef const struct __CFDate * CFDateRef; 58extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at); 59extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate); 60typedef __darwin_natural_t natural_t; 61typedef natural_t mach_port_name_t; 62typedef mach_port_name_t mach_port_t; 63typedef int kern_return_t; 64typedef kern_return_t mach_error_t; 65enum { 66kCFNumberSInt8Type = 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 }; 67typedef CFIndex CFNumberType; 68typedef const struct __CFNumber * CFNumberRef; 69extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr); 70typedef const struct __CFAttributedString *CFAttributedStringRef; 71typedef struct __CFAttributedString *CFMutableAttributedStringRef; 72extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ; 73extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ; 74extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ; 75typedef signed char BOOL; 76typedef unsigned long NSUInteger; 77@class NSString, Protocol; 78extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2))); 79typedef struct _NSZone NSZone; 80@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator; 81@protocol NSObject 82- (BOOL)isEqual:(id)object; 83- (id)retain; 84- (oneway void)release; 85- (id)autorelease; 86- (Class)class; 87@end @protocol NSCopying - (id)copyWithZone:(NSZone *)zone; 88@end @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone; 89@end @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; 90@end 91@interface NSObject <NSObject> {} 92+ (id)allocWithZone:(NSZone *)zone; 93+ (id)alloc; 94- (void)dealloc; 95- (oneway void)release; 96- (id)copy; 97@end 98@interface NSObject (NSCoderMethods) 99- (id)awakeAfterUsingCoder:(NSCoder *)aDecoder; 100@end 101extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone); 102typedef struct { 103} 104NSFastEnumerationState; 105@protocol NSFastEnumeration - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len; 106@end @class NSString, NSDictionary; 107@interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value; 108@end @interface NSNumber : NSValue - (char)charValue; 109- (id)initWithInt:(int)value; 110@end @class NSString; 111@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count; 112@end @interface NSArray (NSArrayCreation) + (id)array; 113@end @interface NSAutoreleasePool : NSObject { 114} 115- (void)drain; 116- (id)init; 117@end extern NSString * const NSBundleDidLoadNotification; 118typedef double NSTimeInterval; 119@interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate; 120@end typedef unsigned short unichar; 121@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 122- ( const char *)UTF8String; 123- (id)initWithUTF8String:(const char *)nullTerminatedCString; 124+ (id)stringWithUTF8String:(const char *)nullTerminatedCString; 125@end @class NSString, NSURL, NSError; 126@interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 127+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length; 128+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b; 129@end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary; 130@interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count; 131@end @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey; 132- (void)setObject:(id)anObject forKey:(id)aKey; 133@end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems; 134@end typedef double CGFloat; 135struct CGSize { 136}; 137typedef struct CGSize CGSize; 138struct CGRect { 139}; 140typedef struct CGRect CGRect; 141typedef mach_port_t io_object_t; 142typedef char io_name_t[128]; 143typedef io_object_t io_iterator_t; 144typedef io_object_t io_service_t; 145typedef struct IONotificationPort * IONotificationPortRef; 146typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator ); 147io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching ); 148kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing ); 149kern_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)); 150kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification ); 151CFMutableDictionaryRef IOServiceMatching( const char * name ); 152CFMutableDictionaryRef IOServiceNameMatching( const char * name ); 153CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName ); 154CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path ); 155CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID ); 156typedef struct __DASession * DASessionRef; 157extern DASessionRef DASessionCreate( CFAllocatorRef allocator ); 158typedef struct __DADisk * DADiskRef; 159extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name ); 160extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media ); 161extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk ); 162extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk ); 163@interface NSTask : NSObject - (id)init; 164@end typedef struct CGColorSpace *CGColorSpaceRef; 165typedef struct CGImage *CGImageRef; 166typedef struct CGLayer *CGLayerRef; 167@interface NSResponder : NSObject <NSCoding> { 168} 169@end @protocol NSAnimatablePropertyContainer - (id)animator; 170@end extern NSString *NSAnimationTriggerOrderIn ; 171@interface NSView : NSResponder <NSAnimatablePropertyContainer> { 172} 173@end @protocol NSValidatedUserInterfaceItem - (SEL)action; 174@end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem; 175@end @class NSDate, NSDictionary, NSError, NSException, NSNotification; 176@interface NSApplication : NSResponder <NSUserInterfaceValidations> { 177} 178@end enum { 179NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 }; 180typedef NSUInteger NSApplicationTerminateReply; 181@protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender; 182@end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView; 183@interface NSCell : NSObject <NSCopying, NSCoding> { 184} 185@end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError; 186typedef struct { 187} 188CVTimeStamp; 189@interface CIImage : NSObject <NSCoding, NSCopying> { 190} 191typedef int CIFormat; 192@end enum { 193kDAReturnSuccess = 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 }; 194typedef mach_error_t DAReturn; 195typedef const struct __DADissenter * DADissenterRef; 196extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string ); 197@interface CIContext: NSObject { 198} 199- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r; 200- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs; 201- (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d; 202@end extern NSString* const QCRendererEventKey; 203@protocol QCCompositionRenderer - (NSDictionary*) attributes; 204@end @interface QCRenderer : NSObject <QCCompositionRenderer> { 205} 206- (id) createSnapshotImageOfType:(NSString*)type; 207@end extern NSString* const QCViewDidStartRenderingNotification; 208@interface QCView : NSView <QCCompositionRenderer> { 209} 210- (id) createSnapshotImageOfType:(NSString*)type; 211@end enum { 212ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, }; 213@class ICDevice; 214@protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device; 215@end extern NSString *const ICScannerStatusWarmingUp; 216@class ICScannerDevice; 217@protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner; 218@end 219CFTypeRef CFMakeCollectable(CFTypeRef cf) ; 220 221static __inline__ __attribute__((always_inline)) id NSMakeCollectable(CFTypeRef 222cf) { 223 return cf ? (id)CFMakeCollectable(cf) : ((void*)0); 224} 225 226//===----------------------------------------------------------------------===// 227// Test cases. 228//===----------------------------------------------------------------------===// 229 230void f1() { 231 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 232 id x = [(id) A autorelease]; 233 CFRelease((CFMutableArrayRef) x); 234} 235 236void f2() { 237 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 238 id x = [(id) A retain]; 239 [x release]; 240 [x release]; 241} 242 243void f3() { 244 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 245 CFMakeCollectable(A); 246 CFRetain(A); 247} 248 249void f3b() { 250 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 251 CFMakeCollectable(A); 252} 253 254 255void f4() { 256 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 257 NSMakeCollectable(A); 258 CFRetain(A); 259} 260 261void f4b() { 262 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 263 NSMakeCollectable(A); 264} 265 266void f5() { 267 id x = [NSMakeCollectable(CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks)) autorelease]; // no-warning 268} 269 270void f5b() { 271 id x = [(id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks) autorelease]; // expected-warning{{leak}} 272} 273 274// Test return of non-owned objects in contexts where an owned object 275// is expected. 276@interface TestReturnNotOwnedWhenExpectedOwned 277- (NSString*)newString; 278- (CFMutableArrayRef)newArray; 279@end 280 281@implementation TestReturnNotOwnedWhenExpectedOwned 282- (NSString*)newString { 283 NSString *s = [NSString stringWithUTF8String:"hello"]; // expected-warning{{Potential leak (when using garbage collection) of an object allocated}} 284 CFRetain(s); 285 return s; 286} 287- (CFMutableArrayRef)newArray{ 288 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 289} 290@end 291 292//===----------------------------------------------------------------------===// 293// <rdar://problem/6948053> False positive: object substitution during -init* 294// methods warns about returning +0 when using -fobjc-gc-only 295//===----------------------------------------------------------------------===// 296 297@interface MyClassRdar6948053 : NSObject 298- (id) init; 299+ (id) shared; 300@end 301 302@implementation MyClassRdar6948053 303+(id) shared { 304 return (id) 0; 305} 306- (id) init 307{ 308 Class myClass = [self class]; 309 [self release]; 310 return [[myClass shared] retain]; // no-warning 311} 312@end 313 314//===----------------------------------------------------------------------===// 315// <rdar://problem/7174400> 'ciContext createCGImage:outputImage fromRect:' returns a retained CF object (not GC'ed)//===----------------------------------------------------------------------===// 316//===----------------------------------------------------------------------===// 317 318void rdar_7174400(QCView *view, QCRenderer *renderer, CIContext *context, 319 NSString *str, CIImage *img, CGRect rect, 320 CIFormat form, CGColorSpaceRef cs) { 321 [view createSnapshotImageOfType:str]; // no-warning 322 [renderer createSnapshotImageOfType:str]; // no-warning 323 [context createCGImage:img fromRect:rect]; // expected-warning{{leak}} 324 [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}} 325} 326 327//===----------------------------------------------------------------------===// 328// <rdar://problem/6250216> Warn against using -[NSAutoreleasePool release] in 329// GC mode 330//===----------------------------------------------------------------------===// 331 332void rdar_6250216(void) { 333 NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; 334 [pool release]; // expected-warning{{Use -drain instead of -release when using NSAutoreleasePool and garbage collection}} 335} 336 337 338//===----------------------------------------------------------------------===// 339// <rdar://problem/7407273> Don't crash when analyzing messages sent to blocks 340//===----------------------------------------------------------------------===// 341 342@class RDar7407273; 343typedef void (^RDar7407273Block)(RDar7407273 *operation); 344void rdar7407273(RDar7407273Block b) { 345 [b copy]; 346} 347 348//===----------------------------------------------------------------------===// 349// Tests of ownership attributes. 350//===----------------------------------------------------------------------===// 351 352@interface TestOwnershipAttr : NSObject 353- (NSString*) returnsAnOwnedString __attribute__((ns_returns_retained)); 354- (NSString*) returnsAnOwnedCFString __attribute__((cf_returns_retained)); 355@end 356 357void test_attr_1(TestOwnershipAttr *X) { 358 NSString *str = [X returnsAnOwnedString]; // no-warning 359} 360 361void test_attr_1b(TestOwnershipAttr *X) { 362 NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}} 363} 364 365@interface MyClassTestCFAttr : NSObject {} 366- (NSDate*) returnsCFRetained __attribute__((cf_returns_retained)); 367- (NSDate*) alsoReturnsRetained; 368- (NSDate*) returnsNSRetained __attribute__((ns_returns_retained)); 369@end 370 371__attribute__((cf_returns_retained)) 372CFDateRef returnsRetainedCFDate() { 373 return CFDateCreate(0, CFAbsoluteTimeGetCurrent()); 374} 375 376@implementation MyClassTestCFAttr 377- (NSDate*) returnsCFRetained { 378 return (NSDate*) returnsRetainedCFDate(); // No leak. 379} 380 381- (NSDate*) alsoReturnsRetained { 382 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 383} 384 385- (NSDate*) returnsNSRetained { 386 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 387} 388@end 389