retain-release-gc-only.m revision 21206d5e3167d5e8066c005c1773afc80ff50ae6
1// RUN: %clang_cc1 -analyze -analyzer-checker=cocoa.NSAutoreleasePool -analyzer-check-objc-mem -analyzer-store=basic -verify -fobjc-gc-only -fblocks %s 2// RUN: %clang_cc1 -analyze -analyzer-checker=cocoa.NSAutoreleasePool -analyzer-check-objc-mem -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- (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@end extern NSString * const NSBundleDidLoadNotification; 117typedef double NSTimeInterval; 118@interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate; 119@end typedef unsigned short unichar; 120@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 121- ( const char *)UTF8String; 122- (id)initWithUTF8String:(const char *)nullTerminatedCString; 123+ (id)stringWithUTF8String:(const char *)nullTerminatedCString; 124@end @class NSString, NSURL, NSError; 125@interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 126+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length; 127+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b; 128@end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary; 129@interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count; 130@end @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey; 131- (void)setObject:(id)anObject forKey:(id)aKey; 132@end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems; 133@end typedef double CGFloat; 134struct CGSize { 135}; 136typedef struct CGSize CGSize; 137struct CGRect { 138}; 139typedef struct CGRect CGRect; 140typedef mach_port_t io_object_t; 141typedef char io_name_t[128]; 142typedef io_object_t io_iterator_t; 143typedef io_object_t io_service_t; 144typedef struct IONotificationPort * IONotificationPortRef; 145typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator ); 146io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching ); 147kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing ); 148kern_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)); 149kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification ); 150CFMutableDictionaryRef IOServiceMatching( const char * name ); 151CFMutableDictionaryRef IOServiceNameMatching( const char * name ); 152CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName ); 153CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path ); 154CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID ); 155typedef struct __DASession * DASessionRef; 156extern DASessionRef DASessionCreate( CFAllocatorRef allocator ); 157typedef struct __DADisk * DADiskRef; 158extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name ); 159extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media ); 160extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk ); 161extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk ); 162@interface NSTask : NSObject - (id)init; 163@end typedef struct CGColorSpace *CGColorSpaceRef; 164typedef struct CGImage *CGImageRef; 165typedef struct CGLayer *CGLayerRef; 166@interface NSResponder : NSObject <NSCoding> { 167} 168@end @protocol NSAnimatablePropertyContainer - (id)animator; 169@end extern NSString *NSAnimationTriggerOrderIn ; 170@interface NSView : NSResponder <NSAnimatablePropertyContainer> { 171} 172@end @protocol NSValidatedUserInterfaceItem - (SEL)action; 173@end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem; 174@end @class NSDate, NSDictionary, NSError, NSException, NSNotification; 175@interface NSApplication : NSResponder <NSUserInterfaceValidations> { 176} 177@end enum { 178NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 }; 179typedef NSUInteger NSApplicationTerminateReply; 180@protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender; 181@end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView; 182@interface NSCell : NSObject <NSCopying, NSCoding> { 183} 184@end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError; 185typedef struct { 186} 187CVTimeStamp; 188@interface CIImage : NSObject <NSCoding, NSCopying> { 189} 190typedef int CIFormat; 191@end enum { 192kDAReturnSuccess = 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 }; 193typedef mach_error_t DAReturn; 194typedef const struct __DADissenter * DADissenterRef; 195extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string ); 196@interface CIContext: NSObject { 197} 198- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r; 199- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs; 200- (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d; 201@end extern NSString* const QCRendererEventKey; 202@protocol QCCompositionRenderer - (NSDictionary*) attributes; 203@end @interface QCRenderer : NSObject <QCCompositionRenderer> { 204} 205- (id) createSnapshotImageOfType:(NSString*)type; 206@end extern NSString* const QCViewDidStartRenderingNotification; 207@interface QCView : NSView <QCCompositionRenderer> { 208} 209- (id) createSnapshotImageOfType:(NSString*)type; 210@end enum { 211ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, }; 212@class ICDevice; 213@protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device; 214@end extern NSString *const ICScannerStatusWarmingUp; 215@class ICScannerDevice; 216@protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner; 217@end 218CFTypeRef CFMakeCollectable(CFTypeRef cf) ; 219 220static __inline__ __attribute__((always_inline)) id NSMakeCollectable(CFTypeRef 221cf) { 222 return cf ? (id)CFMakeCollectable(cf) : ((void*)0); 223} 224 225//===----------------------------------------------------------------------===// 226// Test cases. 227//===----------------------------------------------------------------------===// 228 229void f1() { 230 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 231 id x = [(id) A autorelease]; 232 CFRelease((CFMutableArrayRef) x); 233} 234 235void f2() { 236 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 237 id x = [(id) A retain]; 238 [x release]; 239 [x release]; 240} 241 242void f3() { 243 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 244 CFMakeCollectable(A); 245 CFRetain(A); 246} 247 248void f3b() { 249 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 250 CFMakeCollectable(A); 251} 252 253 254void f4() { 255 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 256 NSMakeCollectable(A); 257 CFRetain(A); 258} 259 260void f4b() { 261 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 262 NSMakeCollectable(A); 263} 264 265void f5() { 266 id x = [NSMakeCollectable(CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks)) autorelease]; // no-warning 267} 268 269void f5b() { 270 id x = [(id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks) autorelease]; // expected-warning{{leak}} 271} 272 273// Test return of non-owned objects in contexts where an owned object 274// is expected. 275@interface TestReturnNotOwnedWhenExpectedOwned 276- (NSString*)newString; 277- (CFMutableArrayRef)newArray; 278@end 279 280@implementation TestReturnNotOwnedWhenExpectedOwned 281- (NSString*)newString { 282 NSString *s = [NSString stringWithUTF8String:"hello"]; // expected-warning{{Potential leak (when using garbage collection) of an object allocated}} 283 CFRetain(s); 284 return s; 285} 286- (CFMutableArrayRef)newArray{ 287 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 288} 289@end 290 291//===----------------------------------------------------------------------===// 292// <rdar://problem/6948053> False positive: object substitution during -init* 293// methods warns about returning +0 when using -fobjc-gc-only 294//===----------------------------------------------------------------------===// 295 296@interface MyClassRdar6948053 : NSObject 297- (id) init; 298+ (id) shared; 299@end 300 301@implementation MyClassRdar6948053 302+(id) shared { 303 return (id) 0; 304} 305- (id) init 306{ 307 Class myClass = [self class]; 308 [self release]; 309 return [[myClass shared] retain]; // no-warning 310} 311@end 312 313//===----------------------------------------------------------------------===// 314// <rdar://problem/7174400> 'ciContext createCGImage:outputImage fromRect:' returns a retained CF object (not GC'ed)//===----------------------------------------------------------------------===// 315//===----------------------------------------------------------------------===// 316 317void rdar_7174400(QCView *view, QCRenderer *renderer, CIContext *context, 318 NSString *str, CIImage *img, CGRect rect, 319 CIFormat form, CGColorSpaceRef cs) { 320 [view createSnapshotImageOfType:str]; // no-warning 321 [renderer createSnapshotImageOfType:str]; // no-warning 322 [context createCGImage:img fromRect:rect]; // expected-warning{{leak}} 323 [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}} 324} 325 326//===----------------------------------------------------------------------===// 327// <rdar://problem/6250216> Warn against using -[NSAutoreleasePool release] in 328// GC mode 329//===----------------------------------------------------------------------===// 330 331void rdar_6250216(void) { 332 NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; 333 [pool release]; // expected-warning{{Use -drain instead of -release when using NSAutoreleasePool and garbage collection}} 334} 335 336 337//===----------------------------------------------------------------------===// 338// <rdar://problem/7407273> Don't crash when analyzing messages sent to blocks 339//===----------------------------------------------------------------------===// 340 341@class RDar7407273; 342typedef void (^RDar7407273Block)(RDar7407273 *operation); 343void rdar7407273(RDar7407273Block b) { 344 [b copy]; 345} 346 347//===----------------------------------------------------------------------===// 348// Tests of ownership attributes. 349//===----------------------------------------------------------------------===// 350 351@interface TestOwnershipAttr : NSObject 352- (NSString*) returnsAnOwnedString __attribute__((ns_returns_retained)); 353- (NSString*) returnsAnOwnedCFString __attribute__((cf_returns_retained)); 354@end 355 356void test_attr_1(TestOwnershipAttr *X) { 357 NSString *str = [X returnsAnOwnedString]; // no-warning 358} 359 360void test_attr_1b(TestOwnershipAttr *X) { 361 NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}} 362} 363 364@interface MyClassTestCFAttr : NSObject {} 365- (NSDate*) returnsCFRetained __attribute__((cf_returns_retained)); 366- (NSDate*) alsoReturnsRetained; 367- (NSDate*) returnsNSRetained __attribute__((ns_returns_retained)); 368@end 369 370__attribute__((cf_returns_retained)) 371CFDateRef returnsRetainedCFDate() { 372 return CFDateCreate(0, CFAbsoluteTimeGetCurrent()); 373} 374 375@implementation MyClassTestCFAttr 376- (NSDate*) returnsCFRetained { 377 return (NSDate*) returnsRetainedCFDate(); // No leak. 378} 379 380- (NSDate*) alsoReturnsRetained { 381 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 382} 383 384- (NSDate*) returnsNSRetained { 385 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 386} 387@end 388