retain-release-gc-only.m revision 71a5e2841d7a6f3f77230970a7d15bd2cb9e118e
1// RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic -verify -fobjc-gc-only %s 2// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -fobjc-gc-only -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@end 97@interface NSObject (NSCoderMethods) 98- (id)awakeAfterUsingCoder:(NSCoder *)aDecoder; 99@end 100extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone); 101typedef struct { 102} 103NSFastEnumerationState; 104@protocol NSFastEnumeration - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len; 105@end @class NSString, NSDictionary; 106@interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value; 107@end @interface NSNumber : NSValue - (char)charValue; 108- (id)initWithInt:(int)value; 109@end @class NSString; 110@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count; 111@end @interface NSArray (NSArrayCreation) + (id)array; 112@end @interface NSAutoreleasePool : NSObject { 113} 114- (void)drain; 115@end extern NSString * const NSBundleDidLoadNotification; 116typedef double NSTimeInterval; 117@interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate; 118@end typedef unsigned short unichar; 119@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 120- ( const char *)UTF8String; 121- (id)initWithUTF8String:(const char *)nullTerminatedCString; 122+ (id)stringWithUTF8String:(const char *)nullTerminatedCString; 123@end @class NSString, NSURL, NSError; 124@interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; 125+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length; 126+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b; 127@end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary; 128@interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count; 129@end @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey; 130- (void)setObject:(id)anObject forKey:(id)aKey; 131@end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems; 132@end typedef double CGFloat; 133struct CGSize { 134}; 135typedef struct CGSize CGSize; 136struct CGRect { 137}; 138typedef struct CGRect CGRect; 139typedef mach_port_t io_object_t; 140typedef char io_name_t[128]; 141typedef io_object_t io_iterator_t; 142typedef io_object_t io_service_t; 143typedef struct IONotificationPort * IONotificationPortRef; 144typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator ); 145io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching ); 146kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing ); 147kern_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)); 148kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification ); 149CFMutableDictionaryRef IOServiceMatching( const char * name ); 150CFMutableDictionaryRef IOServiceNameMatching( const char * name ); 151CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName ); 152CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path ); 153CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID ); 154typedef struct __DASession * DASessionRef; 155extern DASessionRef DASessionCreate( CFAllocatorRef allocator ); 156typedef struct __DADisk * DADiskRef; 157extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name ); 158extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media ); 159extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk ); 160extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk ); 161@interface NSTask : NSObject - (id)init; 162@end typedef struct CGColorSpace *CGColorSpaceRef; 163typedef struct CGImage *CGImageRef; 164typedef struct CGLayer *CGLayerRef; 165@interface NSResponder : NSObject <NSCoding> { 166} 167@end @protocol NSAnimatablePropertyContainer - (id)animator; 168@end extern NSString *NSAnimationTriggerOrderIn ; 169@interface NSView : NSResponder <NSAnimatablePropertyContainer> { 170} 171@end @protocol NSValidatedUserInterfaceItem - (SEL)action; 172@end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem; 173@end @class NSDate, NSDictionary, NSError, NSException, NSNotification; 174@interface NSApplication : NSResponder <NSUserInterfaceValidations> { 175} 176@end enum { 177NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 }; 178typedef NSUInteger NSApplicationTerminateReply; 179@protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender; 180@end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView; 181@interface NSCell : NSObject <NSCopying, NSCoding> { 182} 183@end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError; 184typedef struct { 185} 186CVTimeStamp; 187@interface CIImage : NSObject <NSCoding, NSCopying> { 188} 189typedef int CIFormat; 190@end enum { 191kDAReturnSuccess = 0, kDAReturnError = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x01, kDAReturnBusy = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x02, kDAReturnBadArgument = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x03, kDAReturnExclusiveAccess = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x04, kDAReturnNoResources = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x05, kDAReturnNotFound = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x06, kDAReturnNotMounted = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x07, kDAReturnNotPermitted = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x08, kDAReturnNotPrivileged = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x09, kDAReturnNotReady = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0A, kDAReturnNotWritable = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0B, kDAReturnUnsupported = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0C }; 192typedef mach_error_t DAReturn; 193typedef const struct __DADissenter * DADissenterRef; 194extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string ); 195@interface CIContext: NSObject { 196} 197- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r; 198- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs; 199- (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d; 200@end extern NSString* const QCRendererEventKey; 201@protocol QCCompositionRenderer - (NSDictionary*) attributes; 202@end @interface QCRenderer : NSObject <QCCompositionRenderer> { 203} 204- (id) createSnapshotImageOfType:(NSString*)type; 205@end extern NSString* const QCViewDidStartRenderingNotification; 206@interface QCView : NSView <QCCompositionRenderer> { 207} 208- (id) createSnapshotImageOfType:(NSString*)type; 209@end enum { 210ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, }; 211@class ICDevice; 212@protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device; 213@end extern NSString *const ICScannerStatusWarmingUp; 214@class ICScannerDevice; 215@protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner; 216@end 217CFTypeRef CFMakeCollectable(CFTypeRef cf) ; 218 219static __inline__ __attribute__((always_inline)) id NSMakeCollectable(CFTypeRef 220cf) { 221 return cf ? (id)CFMakeCollectable(cf) : ((void*)0); 222} 223 224//===----------------------------------------------------------------------===// 225// Test cases. 226//===----------------------------------------------------------------------===// 227 228void f1() { 229 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 230 id x = [(id) A autorelease]; 231 CFRelease((CFMutableArrayRef) x); 232} 233 234void f2() { 235 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 236 id x = [(id) A retain]; 237 [x release]; 238 [x release]; 239} 240 241void f3() { 242 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 243 CFMakeCollectable(A); 244 CFRetain(A); 245} 246 247void f3b() { 248 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 249 CFMakeCollectable(A); 250} 251 252 253void f4() { 254 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} 255 NSMakeCollectable(A); 256 CFRetain(A); 257} 258 259void f4b() { 260 CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 261 NSMakeCollectable(A); 262} 263 264void f5() { 265 id x = [NSMakeCollectable(CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks)) autorelease]; // no-warning 266} 267 268void f5b() { 269 id x = [(id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks) autorelease]; // expected-warning{{leak}} 270} 271 272// Test return of non-owned objects in contexts where an owned object 273// is expected. 274@interface TestReturnNotOwnedWhenExpectedOwned 275- (NSString*)newString; 276- (CFMutableArrayRef)newArray; 277@end 278 279@implementation TestReturnNotOwnedWhenExpectedOwned 280- (NSString*)newString { 281 NSString *s = [NSString stringWithUTF8String:"hello"]; // expected-warning{{Potential leak (when using garbage collection) of an object allocated}} 282 CFRetain(s); 283 return s; 284} 285- (CFMutableArrayRef)newArray{ 286 return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning 287} 288@end 289 290//===----------------------------------------------------------------------===// 291// <rdar://problem/6948053> False positive: object substitution during -init* 292// methods warns about returning +0 when using -fobjc-gc-only 293//===----------------------------------------------------------------------===// 294 295@interface MyClassRdar6948053 : NSObject 296- (id) init; 297+ (id) shared; 298@end 299 300@implementation MyClassRdar6948053 301+(id) shared { 302 return (id) 0; 303} 304- (id) init 305{ 306 Class myClass = [self class]; 307 [self release]; 308 return [[myClass shared] retain]; // no-warning 309} 310@end 311 312//===----------------------------------------------------------------------===// 313// <rdar://problem/7174400> 'ciContext createCGImage:outputImage fromRect:' returns a retained CF object (not GC'ed)//===----------------------------------------------------------------------===// 314//===----------------------------------------------------------------------===// 315 316void rdar_7174400(QCView *view, QCRenderer *renderer, CIContext *context, 317 NSString *str, CIImage *img, CGRect rect, 318 CIFormat form, CGColorSpaceRef cs) { 319 [view createSnapshotImageOfType:str]; // no-warning 320 [renderer createSnapshotImageOfType:str]; // no-warning 321 [context createCGImage:img fromRect:rect]; // expected-warning{{leak}} 322 [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}} 323} 324 325//===----------------------------------------------------------------------===// 326// <rdar://problem/6250216> Warn against using -[NSAutoreleasePool release] in 327// GC mode 328//===----------------------------------------------------------------------===// 329 330void rdar_6250216(void) { 331 NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; 332 [pool release]; // expected-warning{{Use -drain instead of -release when using NSAutoreleasePool and garbage collection}} 333} 334 335 336//===----------------------------------------------------------------------===// 337// <rdar://problem/7407273> Don't crash when analyzing messages sent to blocks 338//===----------------------------------------------------------------------===// 339 340@class RDar7407273; 341typedef void (^RDar7407273Block)(RDar7407273 *operation); 342void rdar7407273(RDar7407273Block b) { 343 [b copy]; 344} 345 346//===----------------------------------------------------------------------===// 347// Tests of ownership attributes. 348//===----------------------------------------------------------------------===// 349 350@interface TestOwnershipAttr : NSObject 351- (NSString*) returnsAnOwnedString __attribute__((ns_returns_retained)); 352- (NSString*) returnsAnOwnedCFString __attribute__((cf_returns_retained)); 353@end 354 355void test_attr_1(TestOwnershipAttr *X) { 356 NSString *str = [X returnsAnOwnedString]; // no-warning 357} 358 359void test_attr_1b(TestOwnershipAttr *X) { 360 NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}} 361} 362 363@interface MyClassTestCFAttr : NSObject {} 364- (NSDate*) returnsCFRetained __attribute__((cf_returns_retained)); 365- (NSDate*) alsoReturnsRetained; 366- (NSDate*) returnsNSRetained __attribute__((ns_returns_retained)); 367@end 368 369__attribute__((cf_returns_retained)) 370CFDateRef returnsRetainedCFDate() { 371 return CFDateCreate(0, CFAbsoluteTimeGetCurrent()); 372} 373 374@implementation MyClassTestCFAttr 375- (NSDate*) returnsCFRetained { 376 return (NSDate*) returnsRetainedCFDate(); // No leak. 377} 378 379- (NSDate*) alsoReturnsRetained { 380 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 381} 382 383- (NSDate*) returnsNSRetained { 384 return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} 385} 386@end 387