retain-release-gc-only.m [plain text]
// RUN:
//===----------------------------------------------------------------------===//
// Header stuff.
//===----------------------------------------------------------------------===//
typedef unsigned int __darwin_natural_t;
typedef unsigned long uintptr_t;
typedef unsigned int uint32_t;
typedef unsigned long long uint64_t;
typedef unsigned int UInt32;
typedef signed long CFIndex;
typedef struct {
CFIndex location;
CFIndex length;
} CFRange;
static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) {
CFRange range;
range.location = loc;
range.length = len;
return range;
}
typedef const void * CFTypeRef;
typedef const struct __CFString * CFStringRef;
typedef const struct __CFAllocator * CFAllocatorRef;
extern const CFAllocatorRef kCFAllocatorDefault;
extern CFTypeRef CFRetain(CFTypeRef cf);
extern void CFRelease(CFTypeRef cf);
typedef struct {
}
CFArrayCallBacks;
extern const CFArrayCallBacks kCFTypeArrayCallBacks;
typedef const struct __CFArray * CFArrayRef;
typedef struct __CFArray * CFMutableArrayRef;
extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks);
extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value);
typedef struct {
}
CFDictionaryKeyCallBacks;
extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks;
typedef struct {
}
CFDictionaryValueCallBacks;
extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
typedef const struct __CFDictionary * CFDictionaryRef;
typedef struct __CFDictionary * CFMutableDictionaryRef;
extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
typedef UInt32 CFStringEncoding;
enum {
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 };
extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding);
typedef double CFTimeInterval;
typedef CFTimeInterval CFAbsoluteTime;
extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void);
typedef const struct __CFDate * CFDateRef;
extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
typedef __darwin_natural_t natural_t;
typedef natural_t mach_port_name_t;
typedef mach_port_name_t mach_port_t;
typedef int kern_return_t;
typedef kern_return_t mach_error_t;
enum {
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 };
typedef CFIndex CFNumberType;
typedef const struct __CFNumber * CFNumberRef;
extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
typedef const struct __CFAttributedString *CFAttributedStringRef;
typedef struct __CFAttributedString *CFMutableAttributedStringRef;
extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ;
extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ;
extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ;
typedef signed char BOOL;
typedef unsigned long NSUInteger;
@class NSString, Protocol;
extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2)));
typedef struct _NSZone NSZone;
@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
@protocol NSObject
- (BOOL)isEqual:(id)object;
- (id)retain;
- (oneway void)release;
- (id)autorelease;
- (Class)class;
@end @protocol NSCopying - (id)copyWithZone:(NSZone *)zone;
@end @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone;
@end @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder;
@end
@interface NSObject <NSObject> {}
+ (id)allocWithZone:(NSZone *)zone;
+ (id)alloc;
- (void)dealloc;
- (oneway void)release;
- (id)copy;
@end
@interface NSObject (NSCoderMethods)
- (id)awakeAfterUsingCoder:(NSCoder *)aDecoder;
@end
extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
typedef struct {
}
NSFastEnumerationState;
@protocol NSFastEnumeration - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
@end @class NSString, NSDictionary;
@interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value;
@end @interface NSNumber : NSValue - (char)charValue;
- (id)initWithInt:(int)value;
@end @class NSString;
@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration>
- (NSUInteger)count;
@end
@interface NSArray (NSArrayCreation)
+ (id)array;
+ (id)arrayWithObjects:(const id [])objects count:(NSUInteger)cnt;
@end
@interface NSAutoreleasePool : NSObject {
}
- (void)drain;
- (id)init;
@end extern NSString * const NSBundleDidLoadNotification;
typedef double NSTimeInterval;
@interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate;
@end typedef unsigned short unichar;
@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
- ( const char *)UTF8String;
- (id)initWithUTF8String:(const char *)nullTerminatedCString;
+ (id)stringWithUTF8String:(const char *)nullTerminatedCString;
@end @class NSString, NSURL, NSError;
@interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length;
+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b;
@end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary;
@interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count;
@end @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey;
- (void)setObject:(id)anObject forKey:(id)aKey;
@end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems;
@end typedef double CGFloat;
struct CGSize {
};
typedef struct CGSize CGSize;
struct CGRect {
};
typedef struct CGRect CGRect;
typedef mach_port_t io_object_t;
typedef char io_name_t[128];
typedef io_object_t io_iterator_t;
typedef io_object_t io_service_t;
typedef struct IONotificationPort * IONotificationPortRef;
typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator );
io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching );
kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing );
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));
kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification );
CFMutableDictionaryRef IOServiceMatching( const char * name );
CFMutableDictionaryRef IOServiceNameMatching( const char * name );
CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName );
CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path );
CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID );
typedef struct __DASession * DASessionRef;
extern DASessionRef DASessionCreate( CFAllocatorRef allocator );
typedef struct __DADisk * DADiskRef;
extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name );
extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media );
extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk );
extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk );
@interface NSTask : NSObject - (id)init;
@end typedef struct CGColorSpace *CGColorSpaceRef;
typedef struct CGImage *CGImageRef;
typedef struct CGLayer *CGLayerRef;
@interface NSResponder : NSObject <NSCoding> {
}
@end @protocol NSAnimatablePropertyContainer - (id)animator;
@end extern NSString *NSAnimationTriggerOrderIn ;
@interface NSView : NSResponder <NSAnimatablePropertyContainer> {
}
@end @protocol NSValidatedUserInterfaceItem - (SEL)action;
@end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem;
@end @class NSDate, NSDictionary, NSError, NSException, NSNotification;
@interface NSApplication : NSResponder <NSUserInterfaceValidations> {
}
@end enum {
NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 };
typedef NSUInteger NSApplicationTerminateReply;
@protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender;
@end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView;
@interface NSCell : NSObject <NSCopying, NSCoding> {
}
@end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError;
typedef struct {
}
CVTimeStamp;
@interface CIImage : NSObject <NSCoding, NSCopying> {
}
typedef int CIFormat;
@end enum {
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 };
typedef mach_error_t DAReturn;
typedef const struct __DADissenter * DADissenterRef;
extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string );
@interface CIContext: NSObject {
}
- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r;
- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs;
- (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d;
@end extern NSString* const QCRendererEventKey;
@protocol QCCompositionRenderer - (NSDictionary*) attributes;
@end @interface QCRenderer : NSObject <QCCompositionRenderer> {
}
- (id) createSnapshotImageOfType:(NSString*)type;
@end extern NSString* const QCViewDidStartRenderingNotification;
@interface QCView : NSView <QCCompositionRenderer> {
}
- (id) createSnapshotImageOfType:(NSString*)type;
@end enum {
ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, };
@class ICDevice;
@protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device;
@end extern NSString *const ICScannerStatusWarmingUp;
@class ICScannerDevice;
@protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner;
@end
CFTypeRef CFMakeCollectable(CFTypeRef cf) ;
static __inline__ __attribute__((always_inline)) id NSMakeCollectable(CFTypeRef
cf) {
return cf ? (id)CFMakeCollectable(cf) : ((void*)0);
}
//===----------------------------------------------------------------------===//
// Test cases.
//===----------------------------------------------------------------------===//
void f1() {
CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
id x = [(id) A autorelease];
CFRelease((CFMutableArrayRef) x);
}
void f2() {
CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}}
id x = [(id) A retain];
[x release];
[x release];
}
void f3() {
CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}}
CFMakeCollectable(A);
CFRetain(A);
}
void f3b() {
CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
CFMakeCollectable(A);
}
void f4() {
CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}}
NSMakeCollectable(A);
CFRetain(A);
}
void f4b() {
CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
NSMakeCollectable(A);
}
void f5() {
id x = [NSMakeCollectable(CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks)) autorelease]; // no-warning
}
void f5b() {
id x = [(id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks) autorelease]; // expected-warning{{leak}}
}
// Test return of non-owned objects in contexts where an owned object
// is expected.
@interface TestReturnNotOwnedWhenExpectedOwned
- (NSString*)newString;
- (CFMutableArrayRef)newArray;
@end
@implementation TestReturnNotOwnedWhenExpectedOwned
- (NSString*)newString {
NSString *s = [NSString stringWithUTF8String:"hello"]; // expected-warning{{Potential leak (when using garbage collection) of an object}}
CFRetain(s);
return s;
}
- (CFMutableArrayRef)newArray{
return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
}
@end
//===----------------------------------------------------------------------===//
// <rdar://problem/6948053> False positive: object substitution during -init*
// methods warns about returning +0 when using -fobjc-gc-only
//===----------------------------------------------------------------------===//
@interface MyClassRdar6948053 : NSObject
- (id) init;
+ (id) shared;
@end
@implementation MyClassRdar6948053
+(id) shared {
return (id) 0;
}
- (id) init
{
Class myClass = [self class];
[self release];
return [[myClass shared] retain]; // no-warning
}
@end
//===----------------------------------------------------------------------===//
// <rdar://problem/7174400> 'ciContext createCGImage:outputImage fromRect:' returns a retained CF object (not GC'ed)//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
void rdar_7174400(QCView *view, QCRenderer *renderer, CIContext *context,
NSString *str, CIImage *img, CGRect rect,
CIFormat form, CGColorSpaceRef cs) {
[view createSnapshotImageOfType:str]; // no-warning
[renderer createSnapshotImageOfType:str]; // no-warning
[context createCGImage:img fromRect:rect]; // expected-warning{{leak}}
[context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}}
}
//===----------------------------------------------------------------------===//
// <rdar://problem/6250216> Warn against using -[NSAutoreleasePool release] in
// GC mode
//===----------------------------------------------------------------------===//
void rdar_6250216(void) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
[pool release]; // expected-warning{{Use -drain instead of -release when using NSAutoreleasePool and garbage collection}}
}
//===----------------------------------------------------------------------===//
// <rdar://problem/7407273> Don't crash when analyzing messages sent to blocks
//===----------------------------------------------------------------------===//
@class RDar7407273;
typedef void (^RDar7407273Block)(RDar7407273 *operation);
void rdar7407273(RDar7407273Block b) {
[b copy];
}
//===----------------------------------------------------------------------===//
// Tests of ownership attributes.
//===----------------------------------------------------------------------===//
@interface TestOwnershipAttr : NSObject
- (NSString*) returnsAnOwnedString __attribute__((ns_returns_retained));
- (NSString*) returnsAnOwnedCFString __attribute__((cf_returns_retained));
@end
void test_attr_1(TestOwnershipAttr *X) {
NSString *str = [X returnsAnOwnedString]; // no-warning
}
void test_attr_1b(TestOwnershipAttr *X) {
NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}}
}
@interface MyClassTestCFAttr : NSObject {}
- (NSDate*) returnsCFRetained __attribute__((cf_returns_retained));
- (NSDate*) alsoReturnsRetained;
- (NSDate*) returnsNSRetained __attribute__((ns_returns_retained));
@end
__attribute__((cf_returns_retained))
CFDateRef returnsRetainedCFDate() {
return CFDateCreate(0, CFAbsoluteTimeGetCurrent());
}
@implementation MyClassTestCFAttr
- (NSDate*) returnsCFRetained {
return (NSDate*) returnsRetainedCFDate(); // No leak.
}
- (NSDate*) alsoReturnsRetained {
return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}}
}
- (NSDate*) returnsNSRetained {
return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}}
}
@end
#if __has_feature(attribute_ns_consumed)
#define NS_CONSUMED __attribute__((ns_consumed))
#endif
#if __has_feature(attribute_cf_consumed)
#define CF_CONSUMED __attribute__((cf_consumed))
#endif
void consumeAndStopTracking(id NS_CONSUMED obj, void (^callback)(void));
void CFConsumeAndStopTracking(CFTypeRef CF_CONSUMED obj, void (^callback)(void));
void testConsumeAndStopTracking() {
id retained = [@[] retain]; // +0, GC
consumeAndStopTracking(retained, ^{}); // no-warning
id doubleRetained = [[@[] retain] retain]; // +0, GC
consumeAndStopTracking(doubleRetained, ^{
[doubleRetained release];
}); // no-warning
id unretained = @[]; // +0
consumeAndStopTracking(unretained, ^{}); // no-warning, GC
}
void testCFConsumeAndStopTrackingMsg() {
id retained = [@[] retain]; // +0, GC
CFConsumeAndStopTracking((CFTypeRef)retained, ^{}); // expected-warning {{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}}
}
void testCFConsumeAndStopTracking() {
CFTypeRef retained = returnsRetainedCFDate(); // +1
CFConsumeAndStopTracking(retained, ^{}); // no-warning
CFTypeRef doubleRetained = CFRetain(returnsRetainedCFDate()); // +2
CFConsumeAndStopTracking(doubleRetained, ^{
CFRelease(doubleRetained);
}); // no-warning
id unretained = @[]; // +0
CFConsumeAndStopTracking((CFTypeRef)unretained, ^{}); // expected-warning {{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}}
}